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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korea Academia-Industrial cooperation Society
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The Korea Academia-Industrial cooperation Society
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Volume & Issues
Volume 17, Issue 6 - Jun 2016
Volume 17, Issue 5 - May 2016
Volume 17, Issue 4 - Apr 2016
Volume 17, Issue 3 - Mar 2016
Volume 17, Issue 2 - Feb 2016
Volume 17, Issue 1 - Jan 2016
Selecting the target year
An image enhancement algorithm for detecting the license plate region using the image of the car personal recorder
Yun, Jong-Ho ; Choi, Myung-Ryul ; Lee, Sang-Sun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 1~8
DOI : 10.5762/KAIS.2016.17.3.1
We propose an adaptive histogram stretching algorithm for application to a car's personal recorder. The algorithm was used for pre-processing to detect the license plate region in an image from a personal recorder. The algorithm employs a Probability Density Function (PDF) and Cumulative Distribution Function (CDF) to analyze the distribution diagram of the images. These two functions are calculated using an image obtained by sampling at a certain pixel interval. The images were subjected to different levels of stretching, and experiments were done on the images to extract their characteristics. The results show that the proposed algorithm provides less deterioration than conventional algorithms. Moreover, contrast is enhanced according to the characteristics of the image. The algorithm could provide better performance than existing algorithms in applications for detecting search regions for license plates.
Viability test and bulk harvest of natural zooplankton communities to verify the efficacy of a ship's ballast water treatment system based on USCG phase-II
Jang, Min-Chul ; Baek, Seung Ho ; Shin, Kyoungsoon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 9~15
DOI : 10.5762/KAIS.2016.17.3.9
We investigated >
marine planktonic organisms (mainly zooplankton) using a bongo net in Masan Bay and Jangmok Bay in order to harvest 75% of natural communities based on Phase-II approval regulations by the United States Coast Guard (USCG). The concentrated volume (in 1 ton) and abundance of zooplankton were
, and their survival rates were 82.6% and 80.1%, respectively. The community structure in Jangmok Bay was similar to that in Masan Bay, and dominant species were adult and immature groups (stage IV) of genus Acartia. Harvested populations were inoculated in a 500-ton test tank. Although the population abundances were
for both bay samples, the mortality rates were higher in the Masan Bay population (32%) than the Jangmok Bay population (20%). We considered the reason to be that there were 30% more immature individuals of Acartia from Masan Bay than from Jangmok Bay. The younger population may have been greatly stressed by the moving process and netting gear. After applying a Ballast Water Treatment System (BWTS) using a sample form Jangmok Bay, the mortality rates in the treatment groups were found to be 100% after 0 days and 5 days, implying that the BWTS worked well. During the winter season, the zooplankton concentration method alone did not easily satisfy the approval standards of USCG Phase II (>
in the 500 ton tank). Increasing the netting frequency and additional fishing boats may be helpful in meeting the USCG Phase II biological criteria.
An Experimental Study for Failure Behavior of Composite Beams with DFRCC and FRP Plank with Rib
Kang, Ga-Ram ; Yoo, Seung-Woon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 16~23
DOI : 10.5762/KAIS.2016.17.3.16
DFRCC (ductile fiber reinforced cementitious composites), which are a significantly improved ductile material compared to conventional concrete, were evaluated as a new construction material with a high potential applications to concrete structures for a range of purposes. In this study, experiments on the failure behavior of composite beams with a DFRCC and FRP (fiber reinforced polymer) plank with a rib used as permanent formwork and tensile reinforcement were carried out. A normal concrete and a fiber reinforced concrete with PVA series of RF4000 and the PP series of PP-macro were used for comparison, and each RF4000+RSC15 and PP-macro+RSC15 was tested by producing composite beams. The experimental results of the FRP plank without a sand coating showed that sliding failure mode between the FRP plank and concrete started from a flexural crack at the beam center; therefore it is necessary for the FRP plank to be coated with sand and the effect of the fiber to failure mode did not appear to be huge. The experiment of the FRP plank with a sand coating showed that both 1200mm and 2000mm allowed sufficient bonding between the concrete and FRP plank. The maximum load of the fiber reinforced concrete was higher than that of normal concrete and the case which a series of PP fiber was mixed showed the highest value. The crack latency caused by the fibers led to composite action with a FRP rib.
A Study on the Thermal Characteristics of Horizontal Ground Heat Exchanger using Thermal Response Test
Chang, Keun Sun ; Kim, Min-Jun ; Kim, Young-Jae ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 24~30
DOI : 10.5762/KAIS.2016.17.3.24
Vertical and standing column well ground heat exchangers have mostly been installed for ground source heat pump systems (GSHP) and thermal response tests (TRT) have been applied to evaluate the thermal characteristics for these heat exchangers. In this paper, the TRT coupled with a line source method was applied to evaluate the thermal characteristics of the horizontal ground heat exchanger (HGHX). Load tests of a HGHX were also performed to examine the daily variations of the ground and fluid temperatures associated with the daily intermittent operation of GSHP. For this test, the straight HGHX (depth 2 m, length 50 m, 8 line) was installed in Ansan city. The results showed that the variations of ground thermal conductivity of HGHX during one year were relatively small with the range of
, and the maximum and minimum values appeared in December and May, respectively. Load tests with heat injection rate of 6.0 kW for 10 hours per day to HGHX during twelve days were performed in June, September and December, and resulted in a ground initial temperature rise of
during these days, respectively.
A Study on the Comparison and Analysis of Debris Reduction System on Small Bridge
Kim, Sung-Joong ; Jung, Do-Joon ; Kang, Joon-Gu ; Yeo, Hong-Koo ; Kim, Jong-Tae ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 31~41
DOI : 10.5762/KAIS.2016.17.3.31
Damage to structures, such as bridge piers, are increasing rapidly due to the debris moving along rivers at the time of flooding. Therefore, the debris fin, debris deflector and debris sweeper, which are debris reduction systems, were produced in this study and an accumulation experiment was carried out on the experimental channel according to the existence of the reduction system. The debris fin is the reduction system that creates parallel flow on debris accumulated on the bridge to pass through the bridge, which was produced using wood. In addition, the debris deflector was produced using steel pipes and it has the type of detouring the direction of debris. The debris sweeper passes the debris using the magnetic force rotation of a screw-shaped cylindrical structure by water flow and it was produced using acrylic material. The experiment was carried out by analyzing the level of accumulation according to the hardness and dropping method of the debris and comparing the accumulation rate of reduction systems, and the experiment was carried out 5 times. According to the experimental results, there was a difference in the accumulation rate according to the type of reduction system and the shape of debris, and it often depended significantly on the initial shape of debris accumulation. The direct debris reduction effect on the bridge was higher in the order of the debris deflector, debris sweeper and debris fin, but in case of the debris deflector, damage, such as stream turbulence, changes in water level and river bed, and the loss of deflector can occur due to debris accumulated directly on the debris deflector. Therefore, it is necessary to design the debris deflector considering these issues.
Modeling Education for Improving CAD Model Applicability for Product Development Process
Woo, Yoonhwan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 42~47
DOI : 10.5762/KAIS.2016.17.3.42
The quality of CAD models affects the efficiency of the product development process. However, it seems that CAD modeling education in colleges simply focuses on the creation of CAD models without considering the quality or the applicability of the models. In this paper, we propose educational modeling approaches to help improve the quality and applicability of CAD models. These methods teach students to create models that include a rich set of information, facilitate downstream applications, and are precisely made with the fewest operations. A survey was carried out with students to validate these approaches.
A Study of Parenting Characteristics of mothers experienced child care teachers
Park, Ji-Sun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 48~56
DOI : 10.5762/KAIS.2016.17.3.48
This study was to establish a framework to provide the necessary caring knowledge in preparental period by analyzing the effects of an experience of being a child-care teacher in a field based on child-care knowledge from university. The data were collected from 5 in-depth interviews for 7 weeks from July to August, 2015. The results showed that mothers who used to be child-care teachers put conversation first in the child rearing process, made a room environment similar to the activity space in a kindergarten, and evaluated themselves as mothers with a burden that their children should be different from the others. This means that they perform child rearing in a positive way by re-creating their experience and knowing the child rearing process.
A Survey Study on a Activating Strategy for College Academia-industrial Cooperation with Industry's Needs for 3D Printing and College Graduate
Ryu, Chung-Hyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 57~65
DOI : 10.5762/KAIS.2016.17.3.57
Academia-industrial cooperation policy is essential to enhance national competitiveness in Korea. Although government and academia have invested in policies and supported industries, academia-industrial cooperation is not operated actively. This is one of the reasons why industrial demand for cooperation has continuously decreased. There are thoughts that universities' outcomes are larger than colleges' outcomes in academia-industrial cooperation, which could be a barrier to academia-industrial cooperation for colleges. It is important to understand industry demands in order to activate this type of cooperation. We propose a way to achieve this based on survey data for 3D printing and college graduates. Interactive cooperation among industries, colleges, and universities is suggested in the process of technical commercialization, such as TRL (Technology Readiness Level).
Development of Wireless Control System for High Power LED Luminaire Using Bluetooth Wireless Communication and Current Control System
Lee, Wan-Bum ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 66~72
DOI : 10.5762/KAIS.2016.17.3.66
An LED lighting control system was developed to combine information technology and LED lights for efficient management and energy savings. The system can monitor and control the status of an LED luminaire using Bluetooth wireless communication, sensor technology, and smart phones. An LED lighting control circuit was designed using a temperature sensor, illumination sensor, and Bluetooth module with a fuzzy constant-current control circuit. We extended the lifetime and prevented damage to the LED by optimizing the supply current of the LED luminaire based on the heat-generation temperature of
of an LED heat sink. We also automatically adjusted the ON/OFF time depending on the ambient illumination of the LED luminaire. By allowing easy control of the LED luminaires on a smartphone, we improved the efficiency and achieved energy savings. The control system was validated through experiments for normal operation.
A Study on the Overlay Welding Process Optimization of GTAW by Double Torch
Lim, Byung-Chul ; Son, Young-San ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 73~78
DOI : 10.5762/KAIS.2016.17.3.73
In this study, GTAW was carried out on austenitic STS316 stainless steel. Overlay welding with the stellite-base filler metal was implemented using a double torch. The response variable was calculated on the measured Vickers hardness for process optimization using the Taguchi method and its response variable was then analyzed about effect on overlay welding characteristics. The optimal process design by the Taguchi method is extremely effective in the overlay welding process for the multiple response variables. In addition, the effects of contribution rate about each response variable was analyzed easily. The conditions of the optimal process were 105A, 18V, pre-heat treatment at
, and post weld heat treatment at
. The Vickers hardness of the specimens produced under the optimal condition of GTAW by the double torch was 8.19% higher than that by a single torch.
Market Reaction for KRX SRI Index Revision
Hwang, Seong-Jun ; Kim, Dong-Il ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 79~85
DOI : 10.5762/KAIS.2016.17.3.79
In today's fast-paced capitalistic society, a primary concern is whether to invest capital in any way to increase profits. In recent years, many companies have emphasized ethics and practiced corporate social responsibility activities. These activities are not only required to have at the end of the company. Bringing the ultimate goal of profit maximization is one way to contribute to the development of society and the economy. Investors are aware of corporate social responsibility activities and have begun to reflect this in their investments. We studied the behavior of a newly incorporated company's stock price on the KRX SRI Index using a scale that indicates the level of social responsibility for companies in the domestic stock market. Socially responsible investment involves an excellent company that looks out and looks for additional effects on the stock price of imports and improves the reliability of investors through an event study. The results show that the company we examined has a positive impact on the market. This study confirms the hypothesis that additional stock market reaction will occur when superior companies are newly incorporated in the KRX SRI Index and gain investors' trust. The results demonstrate that becoming a newly incorporated corporation in the KRX SRI Index is positive information to investors.
Evaluation on the Biodegradability of the MBT Wastewater
Lim, Ji-Young ; Park, Jung-hwan ; Kim, Jin-Han ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 86~92
DOI : 10.5762/KAIS.2016.17.3.86
The possibility of the biological treatment of MBT wastewater generated from the vulcanization accelerator manufacturing process was investigated. MBT wastewater is not biodegradable because it hinders the activity of microorganisms, and approximately 10% of the total COD can be removed after a 7 day acclimation period. The optimal conditions of the MBT wastewater for the chemical pre-treatment was pH of 3.5 and the Fenton oxidation with the addition of
to the wastewater after agitation for 2 hours. The Fenton-treated MBT wastewater showed approximately 20% removal of COD when treated with the activated sludge process for the mixed paper wastewater and Fenton treated wastewater.
The Effects of the Communication Accompanied with Music Therapy on the Anxiety of the Patients during the MRI Examination
Yoon, Yong-Hak ; Yoon, Hee-Jung ; Lee, Sung-Kook ; Kim, Kyung-Hee ; Kwon, Gi-hong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 93~102
DOI : 10.5762/KAIS.2016.17.3.93
This study examined effects of the communication accompanied with music therapy on the anxiety of patients during a MRI examination. In the experiment group consisting of thirty patients and the control group consisting of thirty patients, the experiment was performed from February 1st 2014 to March 31st 2014 in hospital C located in Daegu Korea. The research design was a non-equivalent control group quasi-experimental study. The results showed that the anxiety score (VAS score) on communication with music therapy of the experimental group was significantly lower (p=.001), than that of the control group. Among the vital signs, the blood pressure was similar in both groups. On the other hand, the pulse rate of the experiment group was significantly lower (p=.001). Four categories of the physical discomfort (perspiration, facial change, change in physical posture, and change in vocal sound) did not show any statistically significant difference between the control and experiment group. Among the mental discomforts, dizziness did not have a significant difference between the experiment group and the control group, but the experimental group had significantly low fear (p=.001) and anxiety (p=.001). From the above results, communication accompanying music therapy proves is an effective alternative examination method that reduces the anxiety of patients.
An effectiveness of multitransmit parallel technique on scan time reduction in hip joint MRI
Choi, Kwan-Woo ; Son, Soon-Yong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 103~108
DOI : 10.5762/KAIS.2016.17.3.103
This study examined the effectiveness of the multitransmit parallel technique on the MRI scan time reduction by removing the dielectric effect. The T1 and T2 weighted images of the patients' hip joint were acquired with and without a multitransmit technique. The ROIs were located in the head of femur and iliopsoas muscle. The SNR, CNR and scan time were measured and compared. There was no difference in the images with and without multitransmit. In contrast, the acquisition time was decreased by 42.8% in T1WI and 49.7% in T2WI. In conclusion, this study demonstrated that significant scan time reductions can be accomplished without any differences in the image quality in hip joint MRI by applying the multitransmit parallel technique. Furthermore, the multitranstmit technique is useful in other body parts to resolve the long scan time of an MRI examination.
Satisfaction Evaluation for Orthoses by using QUEST
Kong, Jin-Yong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 109~116
DOI : 10.5762/KAIS.2016.17.3.109
This study presents a unique way to improve consumer-oriented service for assistive orthosis products. Satisfaction and important factors were analyzed based on responses from disabled people who have used the orthoses. We surveyed 185 disabled people with QUEST (Quebec User Evaluation of Satisfaction with assistive Technology), and we conducted in-depth interviews with 25 individuals. The average satisfaction score was 3.68 (orthoses satisfaction: 3.78; service satisfaction: 3.52). For each item, the highest score was effectiveness, and the lowest one was cost. As important factors for each item, the participants selected cost, comfort, repair, and service. The fee system for orthoses needs rational revision, and a delivery system should be constructed for follow-up services such as repair.
Development of the new meta-heuristic optimization algorithm inspired by a vision correction procedure: Vision Correction Algorithm
Lee, Eui Hoon ; Yoo, Do Guen ; Choi, Young Hwan ; Kim, Joong Hoon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 117~126
DOI : 10.5762/KAIS.2016.17.3.117
In this study, a new meta-heuristic optimization algorithm, Vision Correction Algorithm (VCA), designed according to the optical properties of glasses was developed. The VCA is a technique applying optometry and vision correction procedure to optimization algorithm through the process of myopic/hyperopic correction-brightness adjustment-compression enforcement-astigmatism adjustment. The proposed VCA unlike the conventional meta-heuristic algorithm is an automatically adjusting global/local search rate and global search direction based on accumulated optimization results. The proposed algorithm was applied to the representative optimization problem (mathematical and engineering problem) and results of the application are compared with that of the present algorithms.
Cell proliferation inhibition effects of epigallocatechin-3-gallate in TREK2-channel overexpressing cell line
Kim, Yangmi ; Kim, Kyung-Ah ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 127~135
DOI : 10.5762/KAIS.2016.17.3.127
Two-pore domain potassium (K2P) channels are the targets of physiological stimuli, such as intracellular pH, bioactive lipids, and neurotransmitters, and they set the resting membrane potential. Some types of K2P channels play a critical role in both apoptosis and tumoriogenesis. Among the K2P channels, no antagonists of the TREK2 channel have been reported. The aim of the present study was to determine if the TREK2 channel is blocked and whether cell proliferation is influenced by flavonoids in the TREK2 overexpressing HEK293 cells (HEKT2). The electrophysiological current was recorded using single channel patch clamp techniques and cell proliferation was measured using a XTT assay. The electrophysiological results showed that the TREK2 channel activity was reduced to
(n=5) by flavonoids, such as epigallocatechin-3-gallate (EGCG) and quercetin in HEKT2 cells, respectively. In contrast, the EGCG analogue, epicatechin (EC), had no significant inhibitory effects on the TREK2 single channel activity. In addition, cell proliferation was reduced to
(n=4) by ECGG in the HEKT2 cells. From these results, EGCG and quercetin represent the first known TREK2 channel inhibitors and only EGCG reduced HEKT2 cell proliferation. This suggests that the flavonoids may work primarily by inhibiting the TREK2 channel, leading to a change in the resting membrane potential, and triggering the initiation of a change in intracellular signaling for cell proliferation. TREK2 channel may, at least in part, contribute to cell proliferation.
Efficiency of concentrating marine microplanktonic organisms using net sampler to verify the efficacy of a ship's ballast water treatment system
Baek, Seung Ho ; Lee, Min Ji ; Shin, kyoungsoon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 136~143
DOI : 10.5762/KAIS.2016.17.3.136
To provide a type approval test for Ballast Water Treatment System (BWTS) of United States Coast Guard (USCG) Phase-II, this study examined the concentrating efficiency of nets for
sized phytoplanktonic organisms using different mesh sized nets (
), different injection methods (hand breaker as semi-continuous assessment or pump as continuous assessment), and different filterability for the water volume. As a result of the t-test, the net concentrated efficiency between
mesh size was not significant (p > 0.05). The difference in the net concentrated efficiency for filtered natural water volume was not significant (p > 0.05). On the other hand, the Chl.a concentration in the continuous water injection method was significantly (p < 0.05) higher than that of semi-continuous water injection (t-test: t: -4.058). In the natural phytoplankton community, a total of 36 species were identified, including Bacillariophyta (17 species), Dinophyta (15 species), Euglenophyta (1 species), Dictyochophyta (2 species), and unidentified taxa (1 species). Among them, diatom Pseudo-nitzchia spp. was remarkably dominant. In particular, the net concentrated efficiency in all assessments was underestimated to be approximately 20-25%, which was caused by the small size Pseudo-nitzchia spp.. A width size of these genus might have passed through the
mesh size of the net. Therefore, net concentrated efficiency is dependent on the size of the observed species in natural water. This issue should be considered when determining the net volume for the type approval test of BWTS.
Relationship between Core competencies, Nursing professionalism and Employment strategies in Nursing students
Han, Young-In ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 144~152
DOI : 10.5762/KAIS.2016.17.3.144
This paper reports a descriptive correlation to explore the relationships among core competencies, nursing professionalism, and employment strategies of nursing students. Data collection was conducted from November 1 to November 28, 2014. A structural questionnaire were completed by 107 nursing students of 4th year in B city and G city. The data was analyzed using the SPSS 22.0 program. The mean value of the study was as follows: core competencies, 3.57; nursing professionalism, 4.22; and employment strategies, 3.69. A positive relationship was observed between the core competencies and nursing professionalism (r=.401, p<.001), core competencies and employment strategies (r=.559, p<.001), and nursing professionalism and employment strategies (r=.465, p<.001). The factors affecting the employment strategies of the study participants were core competencies (
, p<.001), nursing professionalism (
, p=.001), school score (
, p=.011), which explained approximately 42% (F=24.82, p<.001). Overall, this study indicates that the core competencies and nursing professionalism, employment strategies of Nursing students have a significant positive relationship. Therefore, it is necessary to improve the curriculum, program development and repeat research for improving the core competencies, nursing professionalism, and employment strategies.
Prevalence Rates of Risk Factors of Metabolic Syndrome, and Its Related with Obesity Indices Among the Health Checkup Examinees
Park, Kyu-Ri ; Cho, Young-Chae ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 153~162
DOI : 10.5762/KAIS.2016.17.3.153
The aim of this study was to estimate the prevalence of the metabolic syndrome risk factors for adults in the general population, understand the relationship of each factor with the obesity indicators, and examine the relevance and validity for predicting the metabolic syndrome in obese indicators. The study subjects were 1,051 adults aged 20 years and over, who underwent a health package check-up at the Korea Association of Health Promotion, D-branch from Feb. to Nov. 2014. As a result, the prevalence rates of metabolic syndrome of the study subjects were 21.5%, and the prevalence rates of the metabolic risk factors were as follows: 31.8% of men and 41.6% of women for abdominal obesity; 35.6% of men and 17.3% of women for TG; 17.6% of men and 34.2% of women for HDL-C; 53.5% of men and 35.9% of women for blood pressure; and 14.9% of men and 6.8% of women for FBS. The prevalence rates of metabolic syndrome were significantly higher in the older age group, in the group with the higher BMI, and in the group of higher level of drinking frequency. In the predictive indicators of obesity on metabolic syndrome risk factors, the waist / height ratio was higher than other indicators. Conclusively, WHtR appeared to be a useful indicator to show abdominal obesity and is better in selecting metabolic syndrome patients compared to other obesity indicators.
Study on the high efficiency cleaning performance of the diesel vehicle DPF
Kim, Hyongjun ; Chung, Jaewoo ; Kang, Jungho ; Lee, Jinwoo ; Park, Jungsoo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 163~170
DOI : 10.5762/KAIS.2016.17.3.163
Regulations for the exhaust gas of diesel vehicles are being strengthened every year. Recently, diesel emission regulations for HC, CO, NOx, and particulate matter (PM) have been subject to very strict standards. In the future, the regulation of PM is expected to become stricter. Accordingly, diesel particulate filters (DPFs) have been applied to most diesel vehicles for PM reduction. With increasing engine mileage, ash and soot from the engine exhaust gas accumulate inside the DPF. This accumulation can damage the DPF or degrade engine performance. Therefore, efficient cleaning of the DPF is critical for the maintenance of the engine. If the DPF is well managed through regular cleaning, it can improve the power and fuel economy of the engine and reduce maintenance costs. Therefore, this study was performed to develop a high-efficiency cleaning method for DPFs and an apparatus that can more effectively clean out the accumulated ash and soot.
Crashworthiness Evaluation of Bridge Barriers Built with Hot-dip Zinc-aluminium-magnesium Alloy-coated Steel
Noh, Myung-Hyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 171~176
DOI : 10.5762/KAIS.2016.17.3.171
This paper proposes road safety facilities applying Hot-dip zinc-aluminum-magnesium alloy-coated steel sheets and coils to reduce the loss of function caused by the corrosion of steel in the service state. Vehicle crash simulations and full-scale crash tests were carried out to provide reliable information on evaluating the crash performance with the products of road safety facilities built with hot-dip zinc-aluminum-magnesium alloy-coated steel. From the results of the simulations and full-scale crash tests, the impact behaviors evaluated by the three-dimensional crash simulations considering the strain-rate dependency in a constitutive model were similar to those obtained from the full-scale crash test results. The full-scale crash test results met the crashworthiness evaluation criteria; hence, the proposed bridge barrier in this paper is ready for field applications.
Effects of Maternity Nursing Simulation using High-fidelity Patient Simulator for Undergraduate Nursing Students
Kim, Ahrin ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 177~189
DOI : 10.5762/KAIS.2016.17.3.177
This study examined the effectiveness of maternity nursing simulations using a high-fidelity simulator for undergraduate nursing students. One-group pretest-posttest design was used. The simulation-based education program consisted of three sessions, including the clinical scenarios about prenatal, childbearing and postpartum care. The program provided for 3 weeks in November 2014. Data was collected before and after the simulation education using self-reported questionnaires, which included simulation effectiveness, problem solving ability, communication skills and self-confidence in maternity nursing. The data of 83 participants were analyzed using the IBM SPSS 20.0 program. After simulation education, the overall score of the simulation effectiveness was 17.4 out of 26.0. Communication skill (t=4.58, p=<.001) and self-confidence in maternity nursing (t=9.70, p=<.001) increased significantly in the posttest. On the other hand, there was no significant change in the problem solving ability. The simulation effectiveness correlated significantly with the problem solving ability (r=.494, p<.001), communication skill (r=.361, p<.001), and self-confidence in maternity nursing (r=.497, p<.001) after simulation-based education. These findings suggest that the high-fidelity simulation in maternity nursing education could be used not only to enhance the nursing competency, but also to deal with the limitations of the clinical practicum in the current situation.
Humanoid Robot Performance System for Performing in Public Places
Hwang, Heesoo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 190~196
DOI : 10.5762/KAIS.2016.17.3.190
This paper proposes a humanoid robot performance system for performing in public places, such as an event, exhibition, or street performance. The system of modular structures can be moved easily, and can be played by a module or a combination of modules. The system developed with open source-based software and hardware is easy to adapt and improve. The robot performance control program for controlling robots, displays, audios, videos, and performance instruments was developed using the open source language, Processing. The performance instruments were developed using the open source hardware, Arduino. The contents of the robot performance were composed of scene-specific image, background audio, computer graphics, and videos. For their control and synchronization, the performance control program communicates with the humanoid robots and the performance instruments. In addition, performance accessories required to represent the performance concepts are produced by 3D modeling and printing. In a public place, the robot performance is performed with the theme of celebrating a Halloween day.
A Study on the effect of Shared Leadership on the Organizational Well-being
Kim, Jin-Wook ; Chang, Young-Chul ; Kim, Young-Hunl ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 197~208
DOI : 10.5762/KAIS.2016.17.3.197
The study showed that directional Shared Leadership and transformational Shared Leadership positively influences the relationship between Shared Leadership and interpersonal relationships in the view of organizational wellbeing. In addition, in the relationship between Shared Leadership and rewarding job experience of organizational wellbeing, three leadership types excluding directional Shared Leadership had positive effects. In addition, transformational Shared Leadership and empowering Shared Leadership had a positive impact on the relationship between Shared Leadership and organizational mood of organizational wellbeing. In the relationship between Shared Leadership and a sense of fulfillment in the view of organizational wellbeing, transformational Shared Leadership only had a positive effect. As is the case with the sense of fulfillment, the transformational Shared Leadership, of and itself, positively influenced the relationship between Shared Leadership and leisure of life of organizational wellbeing. A analysis of the study showed that transformational Shared Leadership has an impact on both organizational wellbeing and personal wellbeing. Transformational Shared Leadership helps set up mutual vision or strategies, or to challenge each other to enhance existing processes and procedures. On the other hand, directional Shared Leadership influences the interpersonal relations only, whereas transactional Shared Leadership impacts rewarding job experience only. Presenting clearer ideas on what to do to each other and sharing the reward for performance implies that the members of an organization can feel much more rewarded through job engagement.
A Study on IADL, Stress and Motivation on Healthy Lifestyle among Elderly People with Arthritis
Kim, Jong Gun ; Moon, Kyeung Hee ; Lim, Eun Sun ; Yoo, Jang Hak ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 209~217
DOI : 10.5762/KAIS.2016.17.3.209
The aim of this study was to identify stress, motivation for a the healthy lifestyle and IADL of the elderly with arthritis. This study examined 117 elderly person over the age of 65 years living in S city. The data were analyzed using an independent t-test, Pearson correlation coefficients, and stepwise multiple regression with the SPSS Win 12.0 Program. Significant negative correlations were observed between stress and IADL, significant positive correlations between motivation on healthy lifestyle and IADL. The predictors on IADL were the physical area of stress (
, p<.001) and self-efficacy of motivation on healthy lifestyle (
, p<.001). The model explained 18.5% of the variance. More study will be needed to explore a range of factors influencing the IADL and develop education programs for effective healthy lifestyle of elderly people with arthritis.
A Study on the Reception Sensitivity of the Optical Receiver with the Order Change of the Optical Filter in Optical Preamplifier System
Ra, Yoo-Chan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 218~223
DOI : 10.5762/KAIS.2016.17.3.218
This study examined the order of the Butterworth filter for the correlation on the sensitivity of the receiver in the receiver of an optical system. In the general case, the sensitivity of the receiver is increased if the order of the filter was increased more. This is because increasing the order of the filter response of the normalized frequency of the filter is similar to the rectangular wave. For that reason, the method used to increase the order of the filter increases the sensitivity of the receiver. On the other hand, a method of increasing the order of the filter and makes the system complicated increases the cost of the system. This study examined the correlation between the order of the sensitivity of the receiver filter and to configure the system by simply looking for ways to reduce the cost of the system. The simulation results showed that increasing the order of the filter resulted in a receiver that can determine if the sensitivity is raised. In addition, the order of the Butterworth filter range that does not reduce the sensitivity of the receiver was 2. Therefore, it will be possible to implement an inexpensive optical system of the receiver using the data from this study.
Effects of Height of the Shoe Heel in a Static Posture on Muscle Activity of the Rectus Abdominis, Erector Spinae, Rectus Femoris and Hamstring
Lee, Won-Hwee ; Lee, Hyeon-Jun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 224~230
DOI : 10.5762/KAIS.2016.17.3.224
The purpose of this study was to examine the effects of height of the shoe heel in a one leg standing posture on the muscle activity of the rectus abdominis, erector spinae, hamstring, and rectus femoris. Twenty healthy female subjects were asked to perform a one leg standing posture with three types of shoes, which had different heights of shoe heel, 0cm, 3cm, and 7cm. Surface electromyography was used to evaluate the activities of the right rectus abdominis, erector spinae, hamstring, and rectus femoris muscles. The data was analyzed by repeated one-way ANOVA and the muscle activities among three heights of shoe heel were compared. The results showed that the muscle activities of the erector spinae and rectus femoris increased significantly according to increase height of shoe heel (p<0.05). The activity of the rectus abdominis and hamstring were not significantly different among the three height of shoe heel (p>0.05). These results suggest that the height of shoe heel affects the lumbo-pelvic alignment and center of mass; therefore, high-heeled shoes lead to musculoskeletal pain in the lumbopelvic, hip, and knee areas.
Verification Method to Detect the Fake Test Data in Military Supplies
Chung, Ilhan ; Joo, Jinchun ; Kim, Sunggon ; Cho, Hyeonghwan ; Ahn, Namsu ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 231~240
DOI : 10.5762/KAIS.2016.17.3.231
Recently, fake test data of power cables in nuclear power plants was a terrible shock to the citizens. Some cable companies manipulated the test data to make unfair profits. In addition, fake test data cases were found in military supplies. The fake test data cases focused on parts of army's tank, armored car. This paper propose a new method that can detect fake test data using known statistical methods. In addition, the method was implemented in Microsoft Excel to allow easy use. Lastly, a check sheet was proposed to check the validity of the test system of military suppliers. By detecting and checking the fake test data, it is expected that our new method will play an important role in quality assurance of military supplies.
Stress Coping Behavior and Mediation Effect of Social Competence within the Influence Relation where the Effect of Stress of the Children from Multicultural Families on their School Adjustment
Sim, Mi Young ; Lee, Dool Nyeo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 241~251
DOI : 10.5762/KAIS.2016.17.3.241
This study examined the mediating effects of the stress coping behavior and social competence of children from multicultural families to determine the influential relationships between their stress and school adjustment. The analysis results show that stress had overall negative effects on the school adjustment of children from multicultural families and also on their stress coping behavior and social competence. For the indirect effects, both their stress coping behavior and social competence had positive indirect effects on their school adjustment. Stress did not have significant direct effects on their school adjustment. These findings suggest that stress coping behavior and social competence have full mediating effects between their stress and school adjustment. These findings highlight the need for directions of school education and various program interventions to improve the stress coping and social adjustment competence of children from multicultural families, offering practical implications to enhance their school adjustment.
Exploring the health of female spouses from multicultural families: Examining the differences by their country of origin
Kim, Hyemee ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 252~261
DOI : 10.5762/KAIS.2016.17.3.252
This study examined the health status of female foreign spouses of multicultural families in Korea. More specifically, this study examined whether within-group difference exists depending on their country of origin in health status as well as determinants of their health status. For the analyses, data from the 2012 National Survey of Multicultural Families was used and a total of 165,451 spouses from China (both Korean-Chinese and Han Chinese), Vietnam, and The Philippines were included. The result showed that Vietnamese and Filipino women were healthier than Korean-Chinese and Han Chinese. The determinants and their size of the effect also varied across four groups of women. The results of this study highlight the importance of understanding immigrant women in the context of their ethnic background for interventions of their health. In addition, understanding their status and experiences in Korea must be in place for immigrant health studies, and potential differences by their country of origin must be considered in the development of health policies and practice.
Factors Influencing the Death Anxiety of the Elderly Living Alone
Kwon, Young-Eun ; Kim, Seon-Young ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 262~269
DOI : 10.5762/KAIS.2016.17.3.262
The aim of this study was to identity the death anxiety of elderly people living alone, and the factors that affect their death anxiety. The subjects did not have an impaired cognitive function, and were from one Chungcheongnamdo 2 district in the elderly University. The subjects were 187 elderly people over the age of 65 living alone in the district. The character, communication, and data was collected from February, 2014 to 2 May, 2015 and analyzed using the SPSS 18 program. The death anxiety whole point of elderly people living alone was 2.94 (
); it was 3.06 (
) points according to the sub-region 'death process anxiety', 2.88 (
) points according to 'after-death anxiety', and 2.75 (
) points according to 'presence loss anxiety'. The factors affecting the death anxiety were economic status, depression, and spiritual wellbeing. Economic status (
, p= .000) had the largest effect with an overall explanatory power of 20.3%. Therefore, for the death anxiety of elderly people living alone, life needs to be strengthened through social security systems with intervention programs to improve the quality of depression and spiritual wellbeing.
Characteristics of the Spray Development with Diesel Fuel Temperatures
Lee, Jin-Woo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 270~275
DOI : 10.5762/KAIS.2016.17.3.270
The characteristics of the fuel quantity, injection rate and macro spray development was investigated under a range of diesel fuel temperatures. The actual injection quantity decreased despite the same signal of the injection start and injection duration as the fuel temperature decreased. The injection rate measurements confirmed that the actual injection commencement was delayed and the actual injection duration was shortened under lower fuel temperature conditions, which explains why the injection quantity decreased. Spray tip penetration with a lower fuel temperature was longer than that with a higher fuel temperature due to the deteriorated atomization. As a pre-test for the combustion experiment under low temperature conditions, piston targeting with pilot injection was accomplished, which showed that the fuel droplet from pilot injection was introduced into the crevice area. This suggests that the pilot injection quantity and timing should be chosen with careful consideration for actual applications.
Effects of Hip Strengthening Exercise on Chronic Ankle Instability
Shin, Won-Jeong ; Oh, Du-Hwan ; Zhang, Seok-Am ; Lee, Jang-Kyu ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 276~282
DOI : 10.5762/KAIS.2016.17.3.276
This study examined the effects of 8-weeks hip muscle training on the hip joint abductor muscle isokinetic strength and foot pressure distribution in elite players with chronic ankle instability (N=19). A total of 19 subjects had chronic ankle instability from at least 2 ankle sprains, and were given 8-weeks hip muscle training exercise. The hip muscle strength of the elite players with chronic ankle instability increased significantly, but the foot pressure distribution and ratio of the foot pressure distribution of the elite players with chronic ankle instability did not reach statistical significance and the ratio of the foot pressure distribution showed a similar trend. These results suggest that the strength and foot pressure distribution of the affected-side might increase to that of the unaffected-side. The 8-weeks hip muscle training helped improve the chronic ankle instability of the elite players. Therefore, the hip muscle strength and foot pressure distribution are the primary factors of a rehabilitation program on ankle sprains.
Affecting Factors of Clinical Competence in the Nursing students Using a Mediation Model
Kim, Soon-gu ; Seo, Young-sook ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 283~291
DOI : 10.5762/KAIS.2016.17.3.283
This study examined the casual relationship among emotional intelligence, self-efficacy and clinical competence in nursing students, as well as the effects of emotional intelligence on the clinical competence with the mediation of self-efficacy. The participants were 182 nursing students, and the data were collected during from October 14, to November 10, 2014. The data were analyzed using descriptive statistics, Pearson's correlation coefficient, and mediation pathway with the SPSS 21.0 and AMOS 18.0 programs. The results are as follows: First, there were correlations among emotional intelligence, self-efficacy, and clinical competence. Second, The emotional intelligence, and clinical competence showed direct and indirect associations. Emotional intelligence was found to influence the self-efficacy and clinical competence directly, and self-efficacy influenced the clinical competence directly. Mediation analyses indicated that emotional intelligence influences the self-efficacy.
Autonomous Navigation of a Mobile Robot in Unknown Environment Based on Fuzzy Inference
Zhao, Ran ; Lee, Dong-Hwan ; Lee, Hong-Kyu ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 292~297
DOI : 10.5762/KAIS.2016.17.3.292
This paper presents a navigation problem for an autonomous mobile robot in an unknown environment. The environment contains various types of obstacles and is completely unknown to the robot. Therefore, all of the surrounding information must be detected by the robot's proximity sensors. A navigation method was developed based on a fuzzy inference system to guide the robot to move along a collision-free path and reach the goal position quickly. The obstacles are assumed to be static, and both regular and irregular types of obstacles were investigated. A wall following method is also proposed for a special environment that contains a labyrinth or sharp U-valley obstacles. Simulation results demonstrate that the proposed method has great potential for this navigation problem.
A Study on Impact of Privatization; Focus on Efficiency and Productivity
Hong, Jong-Yi ; Park, Kyung-Bo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 298~309
DOI : 10.5762/KAIS.2016.17.3.298
To increase the productivity and efficiency of public enterprises, privatization has been carried out in a number of different ways. However, the change in productivity and efficiency of privatization have not been validated. Therefore, it is important to investigate the change in productivity and efficiency of privatization. In this study, the impact of privatization was analyzed using the indices of Malmquist analysis and DEA. According to the case studies in Korean privatization, there is no change in efficiency due to privatization. On the other hand, privatization influences the productivity of privatization. These results suggest that the purpose of privatization should be clarified before privatization
Parametric Design of Contact-Free Transportation System Using The Repulsive Electrodynamic Wheels
Jung, Kwang Suk ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 310~316
DOI : 10.5762/KAIS.2016.17.3.310
We propose a novel contact-free transportation system in which an axial electrodynamic wheel is applied as an actuator. When the electrodynamic wheel is partially overlapped by a fixed conductive plate and rotates over it, three-axis magnetic forces are generated on the wheel. Among these forces, those in the gravitational direction and the lateral direction are inherently stable. Therefore, only the force in the longitudinal direction needs to be controlled to guarantee spatial stability of the wheel. The electrodynamic wheel consists of permanent magnets that are repeated and polarized periodically along the circumferential direction. The basic geometric configuration and the pole number of the wheel influence the stability margin of a transportation system, which would include several wheels. The overlap region between the wheel and the conductive plate is a dominant factor affecting the stiffness in the lateral direction. Therefore, sensitivity analysis for the major parameters of the wheel mechanism was performed using a finite element tool. The system was manufactured based on the obtained design values, and the passive stability of a moving object with the wheels was verified experimentally.
Mediating Effect of Self-Efficacy in the Relationship between Parenting Attitude and Rational Career Decision-Making Type of Middle School Students
Park, Young-Saing ; Byun, Sang-Hae ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 317~331
DOI : 10.5762/KAIS.2016.17.3.317
This study was carried out as a preliminary study to analyze the effect of parenting attitudes on the career decision-making types of middle school students. We analyzed the mediating effect of self-efficacy to develop a program that can be implemented jointly at home and at school to help middle school students who are facing the Free Semester System in 2016 to form an ideal career decision-making type. To that end, a survey was conducted with 345 students attending a middle school located in Northern Seoul, and the 335 valid questionnaires were analyzed using SPSS v22. In the sociodemographic analysis, there was no difference in parenting attitudes between groups in terms of religion and family income. The democratic attitude of parents had the greatest impact on the rational career decision-making type, while the permissive attitude had a partial effect. The authoritarian attitude had no effect. Self-efficacy had a mediating effect in only the relationship between democratic parenting attitude and the rational career decision-making type. These findings imply that to help middle school students form a rational career decision-making type, intervention in variables other than self-efficacy is necessary in addition to parent education.
Overlay Multicast considering Fast Path Recovery
Gu, Myeong-Mo ; Kim, Bong-Gi ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 332~337
DOI : 10.5762/KAIS.2016.17.3.332
The rapid reconstruction of a transfer path is caused by frequent secession of nodes in many applications using overlay multicast. For this, however, many studies have been proposed, but a study of fast path recovery is required. This paper proposes a new method for fast path recovery to improve the path reconstruction time and for stable path maintain caused by the sudden secession of the parent node on overlay multicast. The proposed method uses the virtual transfer path and the candidate parent node for the fast path recovery. All nodes exchange periodically the RTT (Round Trip Time) information between the other nodes of similar position itself and neighboring node. All nodes have a candidate parent node list, and each node stores the exchanged RTT information on the list. Each node constructs the virtual transfer path to reduce the recovery time after deciding a candidate parent node that is one of them by the RTT order. In this way, when the parent node is seceded, all nodes can recover the transfer path quickly using the virtual transfer path. The simulation result showed that the recovery time of the proposed method is an average 30% faster than the known method.
A study on design strategy of urban parks in Seoul: focusing on cases of DreamForest, Magok Central Park, and Yongsan Park
Park, Hoon ; Oh, Min-Jun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 338~351
DOI : 10.5762/KAIS.2016.17.3.338
Park planning is done in a way to satisfy various expectations, including providing green space and offering urban space with specific and detailed strategies. This study focuses on large-scale parks that have been built since 2000 or that are going to be built. Their significance in the city was analyzed along with strategic characteristics for designing urban parks, and implications are suggested. First, the design aspects of urban parks have gradually tended towards flexibility for adapting to the diverse surrounding environments. Relating the parks to the surrounding area is realized through connection with facilities or planning to process the border area smoothly. Second, unlike in the past, urban parks are not just simply used as a resting space but play other productive and complex roles in the urban space for healing in the community. Third, six design strategies are being applied in these parks through mutually complex relations. Relations with external parties and planning inside the parks add more importance to the park for the community. Fourth, the changes of vertical time are reflected in park planning strategies and tend to form a floor plan. This is associated with growing park planning and is being realized as a major characteristic in urban park planning strategies.
Attitudes to Use and Non-use of Information Technology among Elderly Women in Seoul
Kim, Myoung-Yong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 352~363
DOI : 10.5762/KAIS.2016.17.3.352
The study was an exploratory research on the awareness of informatization and attitudes to information technology (IT) and its use among elderly women in a metropolitan area. The questionnaire survey was conducted to collect data on IT use or non-use of elderly women aged 60 or older in senior welfare centers in Seoul, Korea. The data on 343 cases were analysed using SPSS 21.0. As a result, the rate of internet use was relatively high and different according to socio-demographic factors, such as age. The elderly women's attitudes like the levels of awareness and expectation of informatization were positive. Elderly women learned to use IT for psychological, emotional reasons as well as for practical ones, and the satisfaction level of IT use was relatively high. Finally, most IT non-users were indifferent and ignorant about IT use. In addition, the dissatisfaction level of IT non-use was normal, but elderly women had a relatively positive expectation of IT use in the future. This study may contribute to understanding the diverse pictures of IT use and the digital divide in old age, and assist in the development of practical programs and policies for the informatization and welfare for older adults.
A Structural Analysis of Learner on Adult Female Learners' Learning Outcome
Jang, Eun Sook ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 364~372
DOI : 10.5762/KAIS.2016.17.3.364
This study examined the multi-phrased effects and outcomes of adult female learners who participated in lifelong learning activities, as well as the proposed structural relationships among the five latent variables. Questions established to achieve the purpose of the study are as follow: What effects do the learner's characteristics, lifelong education institutions, learning flow, and learning satisfaction have on the learning come? The participants of the survey numbered 632, but 54 respondents who were unreliable or did not complete their survey were excluded. A total of 578 cases were analyzed for this research. The structural relationships among the five latent variables-learner's characteristics, lifelong education institutions, learning flow and learning satisfaction, and learning outcome of the adult female learners-AMOS 18.0 program were also used for structural analysis. The major findings of this research are as follows. First, the model fitness showed that the hypothetical model provided a reasonable fit to the data
(df=69, p<.001), RMSEA=.062, TLI=.943, RFI=.920, CFI=.957, IFI=.957, NFI=.939. Second, the learner's characteristics ( =.218, p<.001) and lifelong education institutions ( =.301, p<.001) have a direct effect on the learning outcomes. The learning flow ( =-.149 p=.541) does not have a direct effect on the learning outcome. Learning satisfaction ( =.405 p<.001) have a direct effect on the learning outcome. To put findings above together, in respect to adult female learners' performances, the learning outcomes are influenced directly by the learner characteristics, conditions of the lifelong education institutions, and learning satisfaction, whereas satisfaction indirectly affects the learners' learning outcome.
A Study on Learning Style of Level-Differentiated College Mathematics Classes: Focusing on College of Engineering Students
Lee, Yoon-Gyeong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 373~379
DOI : 10.5762/KAIS.2016.17.3.373
This study examined the level-differentiated mathematic classes to offer basic data for effective college mathematics curriculum. Using the Kolb Learning Style, this study surveyed 213 college engineering students in 6 level-differentiated classes in one university and analyzed the significant consequence. The results showed that the ranking of the Learning Style in a superior mathematic class is Diverger, Accommodator, Assimilator, and Converger. Second, the ranking of the Learning Style in the inferior mathematics class was Accommodator, Diverger, Assimilator, and Converger. Third, for effective class of superior mathematics class, professors need to give sufficient time to analyze mathematics problems by the students themselves. Fourth, for an effective class of inferior mathematic class, professors need to use experimental and diverse teaching method to enhance the students' concentration and learning achievement. Based on this study, professors should develop teaching methods that fit the students' Learning Style and the properties of college mathematics curriculum.
Evaluation of press formability of pure titanium sheet
Kim, Young-Suk ; In, Jeong-Hun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 380~388
DOI : 10.5762/KAIS.2016.17.3.380
Commercially pure titanium (CP Ti) has been actively used in plate heat exchangers due to its light weight, high specific strength, and excellent corrosion resistance. However, compared with automotive steels and aluminum alloys, there has not been much research on the plastic deformation characteristics and press formability of CP Ti sheet. In this study, the mechanical properties of CP Ti sheet are clarified in relation to press formability, including anisotropic properties and the stress-strain relation. The flow curve of the true stress-true strain relation is fitted well by the Kim-Tuan hardening equation rather than the Voce and Swift models. The forming limit curve (FLC) of CP Ti sheet was experimentally evaluated as a criterion for press formability by punch stretching tests. Analytical predictions were also made via Hora's modified maximum force criterion. The predicted FLC with the Kim-Tuan hardening model and an appropriate yield function shows good correlation with the experimental results of the punch stretching test.
Effects of Dietary DFA IV on Lumen Short Chain Fatty Acids Production and Intestinal Environment in Rats
Hong, Kyung Hee ; Jang, Ki-Hyo ; Kang, Soon Ah ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 389~396
DOI : 10.5762/KAIS.2016.17.3.389
This study examined the improving effect of DFA IV obtained from bacterial fermentation on the gut health. The effects of the dietary DFA IV on the intestinal mass, short chain fatty acids production and pH were evaluated in vivo. Sprague-Dawley rats were fed the 0% (control) or 1% DFA IV supplemented diets for 3 weeks. Supplementation of DFA IV resulted in a significant increase in cecal tissue and wall weights. Together with the lowering of the cecal and colonic pH, the amount of acetate and butyrate increased by 1.6 and 3.2 fold of the control group in the cecum, respectively, in the rats fed DFA IV diets. The DFA IV diet also significantly increased the cecal lactate 1.5 fold compared to the control diet, indicating that dietary DFA IV stimulated the growth of lactic acid bacteria and bifidobacteria in the intestine. Based on the above results, it is concluded that the dietary DFA IV may be used as a putative prebiotic supplement.
A Structural Analysis on Children's Pet Attachment, Empathy Ability and Prosociality
Han, A-Ram ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 397~406
DOI : 10.5762/KAIS.2016.17.3.397
This study structurally analyzes the relations between children's pet attachment, empathy ability, and prosociality. The results are used to investigate the relations between pet attachment and empathy ability, which have recently emerged as important variables that affect children's prosociality. Data were collected about pet attachment, empathy ability, and prosociality from 209 elementary students in Daejeon who had experience with raising pets. SPSS 22.0 software was used for descriptive statistical analysis, correlation analysis, and reliability analysis, and AMOS 22.0 was used for confirmatory factor analysis and to examine the structural equation model. According to the analyses, children's pet attachment did not affect their prosociality but did influence their empathy ability. Children's empathy ability affected their prosociality and had a mediating effect on the relation between their pet attachment and prosociality. The results indicate that children's pet attachment and empathy ability are essential factors that influence prosociality. To improve prosociality, efforts should be made increase pet attachment and empathy ability. The study results can be used as a theoretical and practical fundamental basis for plans to improve children's pet attachment, empathy ability, and prosociality.
Relation with Mothers of Oral Health Knowledge and Practice for Infants Oral Health Management
Lee, Young-Mee ; Yeun, Young-Ran ; Kim, Sung-Joong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 407~413
DOI : 10.5762/KAIS.2016.17.3.407
This study examined the relationship between the oral health knowledge of infants and the oral health management of their mothers. The participants were 198 mothers living in D city. The data were analyzed using descriptive statistics, Pearson's correlation coefficients with the SPSS/PC 20.0 program. The results revealed oral health to be a serious problem, and that a visit to a dentist regularly is important. The relationship between the oral health awareness and the confidence that can keep cavities from children did not show significant progress on any topic. A relationship was observed between oral health knowledge and confidence in children who visit a dentist once a year, and a negative correlation between the first visit times and the effects of fluoride on the teeth. The relationship between oral health awareness and mothers' confidence when their children felt a toothache was better when they visited a dental clinic and their knowledge about infant food and beverages without sugar improved. The results of this study can be used to improve the program for the mother's oral health knowledge and effective management in children's education.
Influencing factors on female university students' sexual experience and sexual assertiveness
Yee, Nan-Hee ; Jung, Joon-Sig ; Song, Hyea-Suk ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 414~422
DOI : 10.5762/KAIS.2016.17.3.414
This study examined the sexual behaviors, such as sexual experience, sexual attitudes, sexual knowledge of female university students, and to identify the factors that affect sexual assertiveness and to encourage female university students to improve the level of sexual assertiveness. The subjects were 398 single, female students (undergraduate and graduate) from a university in Seoul. The research tool was a self-administered questionnaire. The data obtained was analyzed using a t-test and ANOVA, and regression analysis on SAS 9.3. The sexual intercourse experience rates showed a positive relation with higher age, having religion, more allowance. The sex knowledge showed a positive relation with higher age, major related humanities or science & technology, and more allowance, and sex attitudes had a significantly positive relation with higher age, major related humanities, no religion, and more allowances. The factors affecting sexual assertiveness were sexual attitudes and lower age. Overall, education programs should be developed to encourage sexual assertiveness and sexual attitudes from elementary school.
Comparison with Characteristics of the floor plan of Stimson hall, Underwood hall, Appenzeller hall in Yonsei University
An, Dai-Whan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 423~431
DOI : 10.5762/KAIS.2016.17.3.423
The purpose of this study was to analyze and compare the characteristics of floor plan of Underwood hall, Appenzeller hall, and Stimson hall in Yonsei University. These buildings in Yonsei University are the representative higher educational institution buildings that were constructed by Western missionaries during the Japanese colonial period. These buildings were designed by the master plan that had been made before the construction. Therefore, these buildings have many similarities but each building has individual characteristics. This study focused on two parts. One is the characteristics of the shared space, such as like corridor, hall, and stairs. These characteristics show the differences between each building because they used different methods and locations of shared space and rooms for the floor plan to include the different functions. The second is the relationships with the floor plan and other plans like the master plan, elevation plan, and structural plan. These relationships show that each building has unique characteristics that are related to the floor plan.
Analysis of the Mechanical Behavior of Bellows for Electromagnetic Control Valve
Son, In-Seo ; Hwang, Seon ; Shin, Dong-Kil ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 432~437
DOI : 10.5762/KAIS.2016.17.3.432
The behavior of a bellows for an electromagnetic control valve was investigated. The bellows consists of an outer metal bellows, inner spring, and metal caps. The bellows needs to have sensitive and precise motion against external loads and pressure loads in order to control the position of the valve accurately. The spring constant of the inner spring and load-displacement curve of the bellows set were measured using a test machine. The inner spring showed a linear relation between load and displacement. The bellows set showed small stiffness at small displacement, and then the stiffness slightly increased upon subsequent displacement. Based on the measured data, finite element analysis was performed. Axisymmetric conditions were applied, and shell elements were used. The effective material properties of the outer bellows material were extracted. Additional analysis was performed, and the behavior of the bellows was analyzed using the finite element model.
Factors Influencing Turnover Intention of Nurses after Evaluation for Certification at Geriatric Hospitals: Focused on Job Stress and Burnout
Choi, Eun Joung ; Park, Ji Won ; Cho, Mi Lim ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 438~449
DOI : 10.5762/KAIS.2016.17.3.438
This study investigates the factors influencing nurses' turnover intentions after evaluation for certification at geriatric hospitals. Focus is centered on job stress and burnout. The study was approved by the KUIRB. Data were collected from April 1 to August 31, 2015, and analyzed using SPSS WIN 18.0 software. The participants were 205 nurses recruited from 15 long-term care hospitals in metropolitan city B in province G. The average scores for job stress, burnout, and turnover intention were 3.83, 2.92, and 3.12, respectively (range: 1-5). Nurses' turnover intention had positive relationships with job stress (r=.356, p<.001) and burnout (r=.729, p<.001). The major factor influencing turnover intention was burnout (
), which explained 53% of the intention. In conclusion, intervention programs should be developed to reduce burnout, the key influencing factor, for decreasing nurses' turnover intention.
Cable Fault Detection Improvement of STDR Using Reference Signal Elimination
Jeon, Jeong-Chay ; Kim, Taek-Hee ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 450~456
DOI : 10.5762/KAIS.2016.17.3.450
STDR (sequence time domain reflectometry) to detect a cable fault using a pseudo noise sequence as a reference signal, and time correlation analysis between the reference signal and reflection signal is robust to noisy environments and can detect intermittent faults including open faults and short circuits. On the other hand, if the distance of the fault location is far away or the fault type is a soft fault, attenuation of the reflected signal becomes larger; hence the correlation coefficient in the STDR becomes smaller, which makes fault detection difficult and the measurement error larger. In addition, automation of the fault location by detection of phase and peak value becomes difficult. Therefore, to improve the cable fault detection of a conventional STDR, this paper proposes the algorithm in that the peak value of the correlation coefficient of the reference signal is detected, and a peak value of the correlation coefficient of the reflected signal is then detected after removing the reference signal. The performance of the proposed method was validated experimentally in low-voltage power cables. The performance evaluation showed that the proposed method can identify whether a fault occurred more accurately and can track the fault locations better than conventional STDR despite the signal attenuation. In addition, there was no error of an automatic fault type and its location by the detection of the phase and peak value through the elimination of the reference signal and normalization of the correlation coefficient.
A study on the applicability of newly developed stainless steel for weight reduction of carbody of intermodal tram
Seo, Sung-il ; Kim, Jeong-guk ; Jung, Hyun-seung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 457~463
DOI : 10.5762/KAIS.2016.17.3.457
The newly developed super ductile duplex stainless steel (SDSS) has good strength and ductility, and it can be used to reduce weight and improve the fabrication efficiency of a carbody of a rolling stock. In this study, spot weldability tests were conducted to take advantage of SDDSS in a carbody for an intermodal tram. Specimens of various thickness (0.4 to 5.0 mm) were prepared to find the proper welding conditions, and tensile load tests were conducted to evaluate the tensile-shear strength of spot welded joints. Then, nugget diameters were measured to verify the quality. The tensile-shear strength was found to be proportional to the heat parameter. It was verified that the tensile-shear strengths and nugget sizes of the joints satisfy the standard requirements. The overall weldability tests confirmed that SDDSS can be used effectively for the carbody of an intermodal tram.
Factors affecting Human Papillomavirus Vaccination among College Nursing Students
Kim, Eun-Jeoung ; Kim, Su Hyun ; Cho Chung, Hyang-In ; Kim, Young A ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 464~472
DOI : 10.5762/KAIS.2016.17.3.464
This investigates the factors that affect HPV (human papillomavirus) vaccination among college nursing students. The subjects were 604 students from 3 nursing colleges located in city G. Data were collected from June to October 2015 and analyzed using SPSS 21.0 software. 14.7% were in the HPV vaccinated group and 85.3% were in the unvaccinated group. Statistical evaluations were done to determine whether vaccination had any associations with age, year in school, gender, pocket money, health beliefs, and knowledge of the HPV vaccination (p<.001). The average score of cancer prevention behavior of the students was 7.22, and the average score of health beliefs was 24.71. The most determining factor for vaccination was "recommendation from parents or significant others," and the most interfering factor for vaccination was "no interest." The significant factors affecting vaccination were the year in school, pocket money, knowledge of the HPV vaccination, and health beliefs. The vaccination rate of subjects who had knowledge of HPV vaccination was higher (OR=8.59, p<.001). These results can contribute to the limited knowledge about the HPV vaccination of college nursing students. Also, this research provides useful baseline data for increasing the rate of HPV vaccination.
Current Control of Switched Reluctance Motor Using Self-tuning Fuzzy Controller
Lee, Young-Soo ; Kim, Jaehyuck ; Oh, Hun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 473~479
DOI : 10.5762/KAIS.2016.17.3.473
This paper describes an accurate and stable current control method of switched reluctance motors(SRMs), which have recently attracted considerable wide attention owing to their favorable features, such as high performance, high durability, structural simplicity, low cost, etc. In most cases, the PI controllers(PICC) have been used mostly for the current control of electric motors because their algorithm and selection of controller gain are relatively simpler compared to other controllers. On the other hand, the PI controller requires an adjustment of the controller gains for each operating point when nonlinear system parameters change rapidly. This paper presents a stable current control method of an SRM using self-tuning fuzzy current controller(STFCC) under nonlinear parameter variation. The performance of the considered method is validated via a dynamic simulation of the current controlled SRM drive using Matlab/Simulink program.
Physical Function(ADL, IADL) and Related Factors in the Elderly People Institutionalized in Long-term Care Facilities
Ahn, Kwon-Suk ; Park, Sung-Kyeong ; Cho, Young-Chae ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 480~488
DOI : 10.5762/KAIS.2016.17.3.480
This study examined the levels of ADL and IADL among elderly people who were institutionalized in long-term care facilities and determined their association with socio-demographic characteristics, health status, and health related behaviors. Interviews were performed, during the period from June 1 to July 31, 2015, to 205 elderlies received from long-term care service. As a results, the total mean score was
for ADL (range: 6~8) and
for IADL (range: 7~21). The selected factors associated with ADL were with or without a spouse, frequency of going out, subjective health status, and mastication ability. The factors associated with ADL were selected, such as gender, with or without a spouse, frequency of going out, subjective health status, disability of body, and amnesia. In conclusion, the level of ADL and IADL in the elderly people selected from long-term care insurance were influenced by the socio-demographic characteristics, health status and health-related behaviors.
The Effect of Perceived Internal Marketing and Customer Orientation on the Organizational Commitment of Nurses in Specialized Hospital
Lim, Kyoung-Min ; Jo, Eun-Joo ; Kwon, Jeong-Ok ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 489~498
DOI : 10.5762/KAIS.2016.17.3.489
This study examined the effects of internal marketing and customer orientation on the organizational commitment of nurses in specialized hospitals. This research was conducted from May 1 to 30, 2015 and involved 149 nurses at 5 specialized hospitals in Busan, The collected data were analyzed by descriptive statistics, t-test, ANOVA, Scheffe's test, Pearson correlation coefficients, stepwise multiple regression by the SPSS WIN 18.0 program. As a result, there were significant differences in the organizational commitment according to age, marital status, education, clinical experience, position, work shift, working unit, number of beds, and experience of participation for employee satisfaction survey. Organizational commitment was positively related to the internal marketing. In addition, there was a positive correlation between the organizational commitment and customer orientation. Meaningful variables that influenced the organizational commitment were internal marketing, working unit, education, and position. The total explanation power was 58.5% and the internal marketing was the most influential factor. In conclusion, to enhance the organizational commitment of nurses working in specialized hospitals, educational opportunities need to be provided to increase the professionalism of nurses, and efforts will be needed to improve the working environment and develop internal marketing strategies, such as regular satisfaction surveys.
The Priority Analysis on the Lifelong Education Enhancing Plan using AHP
Park, Myeung-Sin ; Han, Sang-Hoon ; Yoon, Jong-Chan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 499~508
DOI : 10.5762/KAIS.2016.17.3.499
This paper reports the results of an in-depth study on sensitivity analysis based on promoting activities, the relative importance and priority setting in their sub-elements by AHP(Analytic Hierarchy Process) method. For this purpose, lifelong education experts, education administrators, lifelong educators from Daejeon lifelong education organizations participated in this Priority Analysis on the Lifelong Education Enhancing Plan using the AHP. The analysis resulted in the relative importance of promoting activities; 1) realizing of lifelong education system oriented by universities, 2) setting up the integrated online and offline lifelong education, 3) strengthening the lifelong education of local universities, 4) offering customized lifelong education by generation and target group, 5) strengthening the lifelong education of local governments, and 6) advancing the quality of lifelong education by focusing on the professionalism and transparency. This suggests that realization of a lifelong education system oriented by universities and the reorganization of an university system for adult learners have greater importance among other tasks and elements in carrying out the 3rd lifelong education enhancing plan.
The impact of Perceived Patient Safety Culture on Safety Care Activities in General Hospital Nurse's
Son, Yu-Lim ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 509~517
DOI : 10.5762/KAIS.2016.17.3.509
This study examined the influence of patient safety culture and safety care activities of general hospital nurses. The participants were 178 nurses working in a hospital in D and G cities. Data were collected from June to July, 2015 through Questionnaires that included the Measure of Patient Safety Culture by Kim et al.(2007), and the Measure of Safety Care Activities by Lee(2009). The collected data were analyzed by descriptive analysis, t-test, One-way ANOVA, Pearson correlation coefficients, and stepwise Multiple regression. A statistically significant positive relationship was observed between the nurses perception of the patient safety culture and their safety care activities (r=.407, p<.001). The findings show the patient safety culture accounted for 43.3% of the variance in the safety care activities for hospital nurses followed by the importance of hospital work environment among nurses to improve the safety care activities. These findings highlight the need to develop effective programs to improve the perception of patient safety culture and safety nursing guideline.
Comparative Analysis of the Causal Relationship between Regions of Fluctuations in the Housing Market
Kim, Kyong-hoon ; Jang, Ho-myun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 518~527
DOI : 10.5762/KAIS.2016.17.3.518
The housing market is changing continuously according to the place and time and these changes have a ripple effect across various fields. On the other hand, the amount of housing that is consumed in the region also acts as a central cause of price movement. Moreover, the cause of variations in the housing market can be separated according to the characteristics of the housing consumer. In addition, the individual characteristics of the consumer varies according to the region. As a result, a study on the regional causal relationship of the housing market is underway. Although significant research has been done on the domestic home sales market, there has been limited research on the housing charter market. Therefore, in this paper, regional causal relationship of the housing market in the Gangnam and Gangbuk area in Seoul and Gyeonggi Province was analyzed using the vector error correction model, and is segmented by housing sale market and housing jeonse market. In addition, housing sale and housing jeonse of Gangam, Ganbuk and Gyeonggi province are defined as analysis variables, and time series data is the monthly material of June 2003 to November 2015. The results of the analysis, in the case of the housing sale market, showed that fluctuations in house prices in Gangnam area have a major influence on the fluctuations in house prices in the surrounding region. Similarly, in the case of the housing jeonse market, it was found that the jeonse price of Gangnam area has a significant impact on the jeonse price of housing in the surrounding area.
Social Worker's Image Perceived by Middle and High School Students -Comparison of the Image of Social Worker and Nurse-
Lee, Kyung Cheol ; Kim, Yu-Mi ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 528~536
DOI : 10.5762/KAIS.2016.17.3.528
The aim of this study was to understand the difference between the image of social-workers and nurses perceived by middle school and high school students, and determine the experience related to social workers and the role of social workers projected in the media. The subjects of this study were 386 students of middle and high school located in S city. Data were collected from Oct. 15, 2013 to Nov. 23, 2013 and analyzed using the SPSS win 18.0 program. A comparison of the image of nurses and social workers in two groups showed that middle school students tended to have a more positive image of nurses than high school students, and the image of nurses appeared to be more positive than that of social workers. As a result of analyzing the contents exposed in media, the students received most of their information on social workers from TV. Therefore, it is necessary to have a strategy to help students choose a major or a job by reinforcing mass media monitoring based on TV, which may have a major impact on the image of social workers and provide them with the correct information on the profession.
A Discussion Class Model to Improve English Oral Proficiency for Intermediate Low Learners
Ko, Mi-Sook ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 537~543
DOI : 10.5762/KAIS.2016.17.3.537
This paper suggests a class model to improve the English oral proficiency for intermediate low English speaking learners. Utilizing the four English skills (reading, writing, listening and speaking), the class model focuses on the learners' schema and discussion strategies. To enhance the learners' motivation and match their cognitive capacity, 10 discussion topics were prepared by surveying the learners. A pilot experiment was conducted to investigate the teaching effects of the discussion class model with 26 college students majoring in English in Seoul. The participants' oral proficiency was measured both before, and after the instructions by OPIc (Oral Proficiency Interview in computer). As a result of the experiment, the percentage of participants whose oral proficiency levels were lower than intermediate mid decreased from 82% to 47%. In addition, the percentage of participants with higher oral proficiency than intermediate low was increased dramatically from 18% to 53%, which supports the claim that through discussion, the class learners' diverse and creative ideas need to be expressed in a formal and intelligible language. Finally, through the findings of the study, the possibility of a discussion class can be expected, regardless of the learners' low level of oral proficiency.
The Effect of Arousal Seeking Tendency on Physical Education Intrinsic Motivation and Physical Education Attitude of Middle School Students
Nam, In-Soo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 544~553
DOI : 10.5762/KAIS.2016.17.3.544
Subjects consisting of 335 middle school students were analyzed using arousal seeking tendency scales to determine the effect on student's scores on scales for physical education intrinsic motivation and physical education attitude. The data were subjected to frequency analysis, correlation analysis, reliability analysis, exploratory factor analysis, and multiple regression analysis as statistical methods. The results were as follows. In the subscales of arousal seeking tendency, novelty seeking positively influenced interest, efforts, and competence. In the subscales of arousal seeking tendency, novelty seeking positively influenced physical education attitude, but thrill seeking negatively influenced health and fitness only. In the subscales of physical education intrinsic motivation, interest and efforts positively influenced physical education attitude, while both competence and tension partly influenced it. These findings indicate that improving both attitude and intrinsic motivation of middle school students toward physical education would require a method of teaching and learning that encourages students′ novelty seeking in the subscales of arousal seeking tendency.
Revitalization Planning Strategies for Inner City Based on Locational Characteristics and Potentials -Focused on Cheongju Inner City-
Kim, Min-Hyeok ; Jeon, Won-Sik ; Kim, Young-Hwan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 554~559
DOI : 10.5762/KAIS.2016.17.3.554
Cheongju has been a continuously expanding city due to housing development and new town construction since the 1980s. With time, many urban problems have arisen, such as commercial decline, and degradation of the residential environment in inner city. To revitalize the inner city, this study proposed some planning strategies through the linkage of separated urban regeneration projects maximizing its effectiveness. Therefore, firstly, this study selected the target area in the inner city and identified the cause of the declination and deterioration pattern. Secondly, the main issues were derived by reviewing the locational characteristics and the potential of the target area. Finally, four strategies and detailed projects were suggested for the target area for revitalization of the inner city. Although the effectiveness cannot yet be verified due to its under realization, the results derived from the citizen's participation are having a very important impact and they can be a useful reference for similar planning.
A Study on the Landmark for Regional Revitalization
Lim, Chae-Suk ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 560~570
DOI : 10.5762/KAIS.2016.17.3.560
A landmark is a representative image of a given region that impresses distinct regional characteristics upon visitors. As such, there is a need for each local government to develop a symbolic landmark. We investigated examples of landmark development intended to promote regional revitalization in hopes to provide a basic guideline for developing future landmarks, related tourism products, and tourism promotion policy. Aomori prefecture in Japan was selected as a site for a field study. For a long time, Japan has tried to internationalize and revitalize its provincial regions by establishing various tourism policies. In order to foster the tourism industry in rural areas that are behind in development, Aomori prefecture sought to promote local revitalization through the development of tourism products and cultural space centered on a landmark. Based on this example, we can summarize the conditions for successful landmark development as follows. First, in deciding on the symbolism or the design of a landmark, we must fully investigate and understand the given region and invest sufficient time and funds. Second, we must consider the accessibility of the landmark and make sure its surroundings can also serve as a tourist attraction element. Third, in order to increase the value of visiting a landmark, it is important to provide a variety of things to see and enjoy both inside and outside of the landmark, which can be achieved through continuous operation and management of amenities and diverse programs.
A study on the characteristics of layout patterns of railway station square according to the characteristics of railway station
Yang, Seung-Hee ; Lee, Jeong-Soo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 571~581
DOI : 10.5762/KAIS.2016.17.3.571
This study focused on the characteristics of railway station squares according to layout patterns, which provide transit and links between the station and town. The results were as follows: (1) The analysis examined the characteristics of the railway station to the location and types the proportion: civic center type (59.3%) and ground station (43.7%), and upper railroad station (40.6%). The spatial configurations of the railway station square were obtained: Traffic space and Environment space. (2) The railway station square space configurations was classified as 4 main layout types: Turn place type (PC), Circulation type (PI), Stop place type (PS-1), and Stop place type (PS-2) (3) The average size for each type of railway station square layout patterns of the Location was larger than the civic center type (
) to suburbs type (
). The average form for each type of a railway station square layout patterns of the Location was the civic center type (1.00:0.73) and suburb type (1.00:0.37).
ITs Relationship with Smartphone Addiction, Parenting Attitudes and Resilience on Adolescents -A Survey of Middle School Students in G city-
Kim, Kyung-Ha ; Roh, So-Young ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 582~590
DOI : 10.5762/KAIS.2016.17.3.582
This study examined the relationships among smartphone addiction, parenting attitudes and resilience to identify the relevant factors affecting smartphone addiction. Data were collected from a total of 220 middle school students responding to questionnaires in G city and analyzed using descriptive statistics, independent t-test, ANOVA,
test, Pearson coefficient correlation, and multiple regression. The results showed that the parenting attitude and resilience were negatively correlated with smartphone addiction. The significant factors affecting smartphone addiction were gender, the time of smartphone usage, parenting attitudes, and resilience. These variables explained 21.9% of smartphone addiction and the highest factor was the parenting attitudes, followed by gender, time of smartphone usage, and resilience. This study indicated that it is important to develop a program to ensure adolescents positively perceive parenting attitudes and increase their resilience to decrease the incidence of smartphone addiction.
A Study on Generation of Reverse Parking Guideline Reflecting Position of Camera
Heo, Jun-Ho ; Lee, Seon-Bong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 591~598
DOI : 10.5762/KAIS.2016.17.3.591
The final step of driving a car is parking, which is the most difficult part for people learning to drive. Parking in narrow parking spaces is difficult for both ordinary drivers and beginners. To solve this problem, the development of SPAS (Smart Parking Assist System), ACC (Automatic Control System) improves the convenience of drivers. In addition, parking assistance systems have been developed to recognize more accurately the surrounding environment to the driver using the ultrasound, camera, thermal camera, and radar. This paper proposes the reverse turning radius to process images as if the camera is located in the center of the vehicle regardless of the actual camera position. In addition, it generates the parking guidelines through verification using the vehicle.
Effects for kangaroo care: systematic review & meta analysis
Lim, Junghee ; Kim, Gaeun ; Shin, Yeonghee ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 599~610
DOI : 10.5762/KAIS.2016.17.3.599
This paper reports the results of a systematic review (SR) and meta-analysis research to compare the effect of Kangaroo care, targeting mothers and premature infants. A randomized clinical trial study was performed until February 2015. The domestic literature contained the non-randomized clinical trial research without restriction according to the level of the study design. A search of the Ovid-Medline, CINAHL, PubMed and KoreaMed, the National Library of KOREA, the National Assembly Library, NDSL, KISS and RISS. Through the KMbase we searched and combined the main term ((kangaroo OR KC OR skin-to-skin) AND (care OR contact)) AND (infant OR preterm OR Low Birth Weight OR LBW), ((kangaroo OR kangaroo OR kangaroo) AND (care OR nursing care OR management OR skin contact)) was made; these were all combined with a keywords search through the selection process. They were excluded in the final 25 studies (n=3051). A methodology checklist for randomized controlled trials (RCTs) designed by SIGN (Scottish Intercollegiate Guidelines Network) was utilized to assess the risk of bias. The overall risk of bias was regarded as low. In 16 studies that were evaluated as a grade of "++", 9 studies were evaluated as a grade of "+". As a result of meta-analysis, kangaroo care regarding the effects of premature mortality, severe infection/sepsis had an insignificant effect. Hyperthermia incidence, growth and development (height and weight), mother-infant attachment, hypothermia incidence, length of hospital days, breast feeding rate, sleeping, anxiety, confidence, and gratification of mothering role were considered significant. In satisfaction of the role performance, depression and stress presented contradictory research results for individual studies showing overall significant difference. This study has some limitations due to the few RCTs comparing kangaroo care in the country. Therefore, further RCTs comparing kangaroo care should be conducted.
The Effect of Collagen Peptide Intake on UVB-induced Skin Damage in Hairless mice
Shin, Hyun-Jun ; Park, Jong il ; Kwon, Chang-Ju ; Kim, Hwa young ; Inoue, Naoki ; Koizumi, Seiko ; Hwang, Jae Sung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 611~621
DOI : 10.5762/KAIS.2016.17.3.611
This study examined the effects of collagen peptide intake extracted from the tilapia fish (TFCP) on UVB-induced skin in hairless mice. To cause photoaging, the hairless mice were exposed to UVB irradiation three times a week and TFCP was administered with 545 and 1090 mg/kg once a day for 12 weeks. The level of wrinkle formation, thickness of the skin, acute erythema, skin hydration, amount of hydroxyproline, expression of MMPs and filaggrin were measured. Wrinkle formation, thickness of the skin, and acute erythema were significantly lower and skin hydration was higher in the TFCP intake group compared to the UVB-control mice group. In addition, the amount of the collagen and hydroxyproline of the collagen peptide intake group were much higher than the UVB-control group. Oral administration of TFCP inhibited the expression of the MMP-3 and MMP-13 mRNA level as well as activated MMP-2 and MMP-9 induced by UV irradiation, and increased the protein expression of filaggrin in hairless mice skin. In summary, the oral administration of TFCP can inhibit wrinkle formation and protect the skin from UV-damage. Therefore, this study suggests that TFCP is a potential candidate material for skin functional foods.
Structural Analysis of a Suction Pad for a Removable Bike Carrier using Computational and Experimental Methods
Suh, Yeong Sung ; Lim, Geun Won ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 622~628
DOI : 10.5762/KAIS.2016.17.3.622
As the suction pad-supporting bike carrier attached to a car may be subject to an excessive dynamic load due to random vibrations and centrifugal forces during driving, its structural safety is of great concern. To examine this, the finite-element method with a fluid-structure interaction should be used because the pressure on the pad bottom is changed in real time according to the fluctuations of the force or the moment applied on the pad. This method, however, has high computing costs in terms of modeling efforts and software expense. Moreover, the accuracy of computation is not easily guaranteed. Therefore, a new method combining the experiment and computation is proposed in this paper: the bottom pressure and contact area of the pad under varying loads was measured in real time and the acquired data are then used in the nonlinear elastic finite-element calculations. The computational and experimental results obtained with the product under development showed that the safety margin of the pad under the axial loading is relatively sufficient, whereas with an excessive rotational loading, the pad is vulnerable to separation or a local surface damage; hence, the safety margin may not be secured. The predicted contact behavior under the variation of the magnitude and type of the loading were in good agreement with the one from the experiment. The proposed analysis method in this study could be used in the design of similar vacuum pad systems.
Influence of Consumption Patterns and Satisfaction for Convenience Store Private Brand Foods
Kim, Min-Jeong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 629~637
DOI : 10.5762/KAIS.2016.17.3.629
This study examined the purchasing behavior and satisfaction of people with convenience store PB foods. The factors affecting the purchasing behavior and the overall satisfaction with the convenience store PB foods were examined. This study first found that the purchasing motivation of PB foods is the cheaper price than NB foods. Second, age is a statistically effective variable for the visit frequency at the convenience store and gender and age are effective variables for the purchase frequency of PB foods. Third, there is a statistically positive correlation of convenience store brand preference with the PB food brand preference for 6 food categories. Next, in terms of the attribute-level satisfaction, the most satisfied areas are diverse food groups and diverse food taste and the least satisfied areas is price. This is followed by taste and design/packaging influence overall satisfaction. From this analysis, the following suggestions were drawn. First, because consumers are likely to be matched convenience store brand preference and PB food brand preference, advertising is necessary to ensure that the consumers continue to visit the convenience store. Second, product improvement by increasing the quality should be designed to motivate the major consumer group of people in their 20s and 30s. Finally, to boost PB food satisfaction, the industry should improve the taste and design/packaging.
A Systematic Review of Non-pharmacological Intervention for Depression in Korean Middle-aged Women
Chae, Myung-Ock ; Jeon, Hae Ok ; Kim, Ahrin ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 638~651
DOI : 10.5762/KAIS.2016.17.3.638
The purpose of this study was to review the literature and examine the effects on non-pharmacological depression intervention for middle-aged women in Korea. This systematic review analyzed the literature from 2006 to September, 2015. The existing literature was searched in the electronic databases in RISS, KISS and DBPia using the following key words: middle-aged women and depression, menopause and depression, climacterium and depression. Two hundred eighty studies were found through the database. According to PICOTS-SD, twelve studies were included for analysis. Among the twelve studies, four studies were conducted in the nursing field. Six studies were randomized controlled trials. Aerobic exercise, laughter therapy, meditation, aroma massage, counseling and art therapy were performed as non-pharmacological interventions for depression in Korean middle-aged women. The length of each session ranged from 20 to 120 minutes. The intervention period varied from 2 to 24 weeks, and the total number of the interventions ranged from 8 to 72 times. They influenced not only depression, but also physical aspects that are associated with obesity and psychosocial variables, such as anxiety, quality of life, life satisfaction, etc.
A Development of the Korean Version of the constitutions in Chinese medicine Questionnaire
Kim, Sujin ; Kim, Jongdu ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 652~660
DOI : 10.5762/KAIS.2016.17.3.652
This study was performed on 171 workers in the Kyungbuk Kumi industrial complex to verify the validity and the reliability of the Korean version of the constitutions in a Chinese medicine questionnaire. Each subjective fulfilled a questionnaire of 61 questions in 9 categories based on a self-assessment. All categories and each constitution's internal consistency were analyzed using the Cronbach's alpha coefficient to review the questionnaire's reliability, and factor analysis and correlation analysis were performed to review the validity. The reliability was satisfied with Cronbach's alpha coefficient for all categories and each constitution's internal consistency ranged from 0.601 to 0.925, and the validity was verified by factor analysis, which showed the same two factors of each constitution. Correlation analysis of each constitution showed statistical significance and strong positive correlations among 8 constitutions except for the gentleness type (P=0.0127). As a result, it is believed that the Korean version of the constitutions in Chinese medicine questionnaire can be useful for diagnosing the constitutions of Koreans.
Setting up Relationship between Pull-out Resistance of Helical Anchor and Rotational Penetration Torque for Methodology Development
Kim, Nak-Kyeong ; Kim, Young-Uk ; Moon, Jun-Ho ; Xin, Zhen-Hua ; Gu, Kyo-Young ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 661~667
DOI : 10.5762/KAIS.2016.17.3.661
This study evaluated the potential of methodology development of the helical type anchor for soft ground applications. The rotational penetration of the helix structure might make construction-steps easy without the soil spitting and reusable rods could reduce the material cost. Removal of the anchors would be simple as a construction, which can be named the removal anchor. The anchoring resistance after construction is strongly related to the number of helixes resulting in a concise design process. The investigation involved a chamber test with soft soils. In the test, a specially designed and fabricated helical anchor and torque-driver were used to obtain the maximum pull-out resistance of the anchor after rotational penetration. As a result of the tests, The rotational torque and pull-out resistance have a proportional relationship with the strength of the prepared soils. Within the range of the study, the torque of the anchor penetrating increased with increasing pull-out resistance.
A Study on the Planning Characteristics of Contemporary Japanese Middle School Architecture
Lee, Jeong-Woo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 668~676
DOI : 10.5762/KAIS.2016.17.3.668
This study reviewed the planning characteristics of contemporary Japanese middle school architecture on which related studies are insufficient, aiming to obtain new ideas for planning Korean middle school facilities. Fourteen case schools built after 1990s were selected and analyzed. They were divided into learning-living space and other major spaces. The planning characteristics of the case schools are summarized as follows 1) The case schools were classified into two categories, departmentalized classroom type (D type) and usual with variation type (UV type) by school system. These categories can also be the classification standard for basic architectural characteristics in learning and living space of case schools. 2) D type case schools have departmentalized classrooms, home base, media space and teacher's space for learning-living space. D type case schools are divided into 'attached-to-classroom type' and 'separate type' depending on the adjacency of the home base and departmentalized classroom. 3) UV type case schools have multipurpose space around the classroom for learning-living space and can be divided into two types, i.e., 'directly adjacent' and 'separate', depending on the connectivity to classroom of multipurpose room. 4) Specialized classrooms are designed to have the openness to the public and the own characteristics of school subjects strengthened and show the spatial differentiation with connected ancillary spaces. 5) Libraries are designed as complex zones grouped with computer labs, audio visual rooms and multipurpose halls not as a single room and as open plan not with a closed wall. 6) The gymnasium is the basic sports facility with a martial arts room and outdoor pool, which are for after-school activities as well as physical education class. 7) The terrace, balcony and outdoor stairs are frequently used architectural vocabularies as diverse outdoor spaces with a variety of functions.
Inspecting Stablity of DSM method with Grouting on Tunnel Face using Chamber Test and Numericlal Analysis
Kim, Young-Uk ; Park, Young-Bok ; Kim, Li-Sak ; Kim, Nak-Kyeong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 677~683
DOI : 10.5762/KAIS.2016.17.3.677
In urban areas, underground tunnel construction sites have spread widely to accommodate rapidly increasing traffic volume along with a high-degree economic growth. Earth tunneling might be adapted frequently for the underground space securing, and various tunneling methods have been developed to stabilize the tunnel face and crown. Among them, the DSM (divided shield method) is gaining popularity for its enhanced stability and construction efficiency. This method has its foundation from the Messer Shield method, which is one of the trenchless special tunneling methods. This study examined the effects of face reinforcement on construction the sequence through a large scale soil chamber test and numerical analyses. The chamber has a size of a 1/2 scale of the real tunnel. Surface settlements were measured according the tunneling process. Commercially available software, MIDAS GTS, was used for numerical analysis and its result was compared with the values obtained from the chamber test. The results of the study show that both settlements of the embanked soils and the stress of the tunnel girder are located within the safe criteria. Overall, this study provides basic data and the potential of using a reinforced tunnel face to enhance DSM applications.
A Study on District Respectable Public Parking Planning for Urban Revitalization -Comparison of Santa Barbara Public Parking System-
Oh, Joon-Gul ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 684~691
DOI : 10.5762/KAIS.2016.17.3.684
This study defines three types of public parking for commercial business, cultural tours, sales and market areas. We compared the Santa Barbara parking system with Korean examples for use in urban revitalization with a proper planning strategy based on district-specific public parking. The results are as follows: 1. The layout and location of public parking entrances need to consider the urban grid and linkages. 2. Public parking should place emphasis on respecting a district's character and user convenience. 3. The success of public parking extends to revitalization of pedestrian paths at target areas.
Large Point Cloud-based Pipe Shape Reverse Engineering Automation Method
Kang, Tae-Wook ; Kim, Ji-Eum ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 692~698
DOI : 10.5762/KAIS.2016.17.3.692
Recently, the facility extension construction and maintenance market portion has increased instead of decreased the newly facility construction. In this context, it is important to examine the reverse engineering of MEP (Mechanical Electrical and Plumbing) facilities, which have the high operation and management cost in the architecture domains. The purpose of this study was to suggest the Large Point Cloud-based Pipe Shape Reverse Engineering Method. To conduct the study, the related researches were surveyed and the reverse engineering automation method of the pipe shapes considering large point cloud was proposed. Based on the method, the prototype was developed and the results were validated. The proposed method is suitable for large data processing considering the validation results because the rendering performance standard deviation related to the 3D point cloud massive data searching was 0.004 seconds.
Low-Complexity Deeply Embedded CPU and SoC Implementation
Park, Chester Sungchung ; Park, Sungkyung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 699~707
DOI : 10.5762/KAIS.2016.17.3.699
This paper proposes a low-complexity central processing unit (CPU) that is suitable for deeply embedded systems, including Internet of things (IoT) applications. The core features a 16-bit instruction set architecture (ISA) that leads to high code density, as well as a multicycle architecture with a counter-based control unit and adder sharing that lead to a small hardware area. A co-processor, instruction cache, AMBA bus, internal SRAM, external memory, on-chip debugger (OCD), and peripheral I/Os are placed around the core to make a system-on-a-chip (SoC) platform. This platform is based on a modified Harvard architecture to facilitate memory access by reducing the number of access clock cycles. The SoC platform and CPU were simulated and verified at the C and the assembly levels, and FPGA prototyping with integrated logic analysis was carried out. The CPU was synthesized at the ASIC front-end gate netlist level using a
digital CMOS technology with 1.8V supply, resulting in a gate count of merely 7700 at a 50MHz clock speed. The SoC platform was embedded in an FPGA on a miniature board and applied to deeply embedded IoT applications.
Simulation Study of Methyl ethyl ketone-Cyclohexane Azeotrope on the Pressure-Swing Distillation
Park, Hoey Kyung ; Ahn, June-shu ; Cho, Jungho ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 708~715
DOI : 10.5762/KAIS.2016.17.3.708
The modelling and optimization of Methyl Ethyl Ketone (MEK)-Cyclohexane (CH) separation process were performed using pressure-swing distillation with a low-high pressure column and a high-low pressure column configuration. The optimization was performed for the number of theoretical stages, and the location of the feed tray of low column and high column to obtain high-purity MEK at the top. The total reboiler heat duty at the low-high pressure column configuration and high-low pressure column configuration were at 11.7667 Mkcal/h and at 10.3484 Mkcal/h, respectively. The results showed that total reboiler heat duty could be reduced to 12.05% using a high-low pressure column configuration.
An Experimental Study on Tube-Side Heat Transfer Coefficients and Friction Factors of the Enhanced Tubes Used in Regenerators of Absorption Chillers
Kim, Nea-Hyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 716~723
DOI : 10.5762/KAIS.2016.17.3.716
Enhanced tubes are used widely in the heat exchangers of absorption chillers. In regenerators, corrugated, ribbed or floral tubes are commonly used. In this study, the tube-side heat transfer coefficients and friction factors of enhanced tubes were obtained experimentally using the Wilson Plot method. The results showed that the heat transfer coefficients and the friction factors were the largest for the corrugated tube, followed by the ribbed tube. The heat transfer coefficients and friction factors of the floral tube matched those of the smooth tube within 4%, which suggests that the heat transfer and friction characteristics of the floral tube may be accounted for properly by the hydraulic diameter. The B(e+) and g(e+) were obtained from the experimental data of the corrugated and ribbed tube. The B(e+) and g(e+) of the corrugated tube matched those of the existing correlation within 20%. The present results may be used for an assessment of the heat transfer and friction characteristics of the enhanced tubes for regenerators.
Development of advanced technology shoes combined conical top foundation mechanism
Kim, Yeon-Deok ; Lee, Ji-Hyun ; Kim, Sang-Hwan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 724~731
DOI : 10.5762/KAIS.2016.17.3.724
This paper presents the interdisciplinary study of a combined mechanism on the interactions between ground and foot using bioengineering and geotechnical engineering. A new mechanism of advanced technology shoes, which can be made safe with a comfortable gait on both soft and hard ground, were developed combining the mechanism of conical top foundation. The experimental tests were carried out to verify the developed shoes. The prototype shoes and test grounds were designed and produced to perform the tests. The general existing shoes and advanced technology shoes were used to measure the pressures re-acting the sole during the tests by a special measurement system. The results clearly showed that the pressures acting on the sole of advanced technology shoes were distributed uniformly compared with that of the existing shoes, and were in good agreement with theoretical approach of the new mechanism. Therefore, the advanced technology shoes could allow a safe gait ergonomically by a new mechanism on any ground type. The load transfer could occur by the interaction between ground and shoes. In addition, these results are expected to be useful for the development of an interdisciplinary study of a new mechanism in the future.
Performance Evaluation of Dense Graded Asphalt Mixture Modfied by Pyrolysis Carbon Black
Lee, Kwan-Ho ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 3, 2016, Pages 732~737
DOI : 10.5762/KAIS.2016.17.3.732
Using the pyrolyzed carbon black (PCB) from waste tires, the performance of 13 mm dense-graded hot mix asphalt was evaluated. The Marshall mix design was carried out and the measured optimal asphalt content was 5.8%. The impact resonant test was conducted to obtain the elastic modulus and damping ratio of the hot mix asphalt. The elastic modulus of HMA increased with increasing amount of PCB. On the other hand, there was no significant change in the damping ratio. The Marshall mix design, indirect tensile test, permanent deformation test, and program analysis were carried out. The strength ratio of the PCB modified asphalt mixtures was within 10%. More 10% of PCB was not good for the permanent deformation of hot mix asphalt. From the pavement design program, the use of 5% PCB in hot mix asphalt showed a decrease in the top-down crack, bottom-up crack, and permanent deformation. Judging from the limited test and analysis, the use of 5% PCB is good for enhancing the pavement performance.