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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 8 - Aug 2016
Volume 17, Issue 7 - Jul 2016
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
A Study on Improving Accuracy of Subway Location Tracking using WiFi Fingerprinting
An, Taeki ; Ahn, Chihyung ; Nam, Myungwoo ; Park, Jinhong ; Lee, Youngseok ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 1~8
DOI : 10.5762/KAIS.2016.17.1.1
In this study, an WiFi fingerprinting method based on the k-nn algorithm was applied to improve the accuracy of location tracking of a moving train on a platform and evaluate the performance to minimize the estimation error of location tracking. The data related to the position of the moving train are monitored by the control center for trains and used widely for the safety and comfort of passengers. The train location tracking methods based on WiFi installed by telecom companies were evaluated. In this study, a simulator was developed to consider the environments of two cases; in already installed WiFi devices and new installed WiFi devices. The developed simulator can simulate the localized estimation of the position under a variety of conditions, such as the number of WiFi devices, the area of platform and entry velocity of train. To apply location tracking algorithms, a k-nn algorithm and fuzzy k-nn algorithm were applied selectively according to the underlying condition and also four distance measurement algorithms were applied to compare the error of location tracking. In conclusion, the best method to estimate train location tracking is a combination of the k-nn algorithm and Minkoski distance measurement at a 0.5m grid unit and 8 WiFi AP installed.
A study on digital locking device design using detection distance 13.4mm of human body sensing type magnetic field coil
Lee, In-Sang ; Song, Je-Ho ; Bang, Jun-Ho ; Lee, You-Yub ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 9~14
DOI : 10.5762/KAIS.2016.17.1.9
This study evaluated a digital locking device design using detection distance of 13.4mm of a human body sensing type magnetic field coil. In contrast to digital locking devices that are used nowadays, the existing serial number entering buttons, lighting, number cover, corresponding pcb, exterior case, and data delivery cables have been deleted and are only composed of control ON/OFF power switches and emergency terminals. When the magnetic field coil substrates installed inside the inner case detects the electric resistance delivered from the opposite side of the 12mm interval exterior contacting the glass body part, the corresponding induced current flows. At this time, the magnetic field coil takes the role as a sensor when coil frequency of the circular coil is transformed. The magnetic coil as a sensor detects a change in the oscillation frequency output before and after the body is detected. This is then amplified to larger than 2,000%, transformed into digital signals, and delivered to exclusive software to compare and search for embedded data. The detection time followed by the touch area of the body standard to a
magnetic field coil was 30% contrast at 0.08sec and 80% contrast at 0.03sec, in which the detection distance was 13.4mm, showing the best level.
Convergence Property Analysis of Multiple Modulus Self-Recovering Equalization According to Error Dynamics Boosting
Oh, Kil Nam ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 15~20
DOI : 10.5762/KAIS.2016.17.1.15
The existing multiple modulus-based self-recovering equalization type has not been applied to initial equalization. Instead, it was used for steady-state performance improvement. In this paper, for the self-recovering equalization type that considers the multiple modulus as a desired response, the initial convergence performance was improved by extending the dynamics of the errors using error boosting and their characteristics were analyzed. Error boosting in the proposed method was carried out in proportion to a symbol decision for the equalizer output. Furthermore, having the initial convergence capability by extending the dynamics of errors, it showed excellent performance in the initial convergence rate and steady-state error level. In particular, the proposed method can be applied to the entire process of equalization through a single algorithm; the existing methods of switching over or the selection of other operation modes, such as concurrent operating with other algorithms, are not necessary. The usefulness of the proposed method was verified by simulations performed under the channel conditions with multipath propagation and additional noise, and for performance analysis of self-recovering equalization for high-order signal constellations.
Characteristics of Water Gas Shift and Membrane Process for Pre-combustion CO
Kim, Jeong-Nam ; You, Jong-Kyun ; Choi, Soo-Hyun ; Baek, Il-Hyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 21~27
DOI : 10.5762/KAIS.2016.17.1.21
Global warming due to greenhouse gas emissions is considered as a major problem worldwide, and many countries are making great efforts to reduce carbon dioxide emissions. Many technologies in post-combustion, pre-combustion and oxy-fuel combustion
capture have been developed. Among them, a hybrid pre-combustion
capture system of a water gas shift (WGS) reactor and a membrane gas separation unit was investigated. The 2 stage WGS reactor integrated high temperature shift (HTS) with a low temperature shift (LTS) was used to obtain a higher CO conversion rate. A Pd/Cu dense metal membrane was used to separate
selectively. The performance of the hybrid system in terms of CO conversion and
separation was evaluated using a 65% CO, 30 %
gas mixture for applications to pre-combustion
capture. The experiments were carried out over the range of WGS temperatures (
), WGS pressures (0-20bar), Steam/Carbon (S/C) ratios (2.5-5) in a feed gas flow rate of 1 L/min. A very high CO conversion rate of 99.5% was achieved with the HTS-LTS 2 stage water gas shift reactor, and 83%
was concentrated in the retentate using the Pd/Cu membrane.
The Outlet Temperature Prediction of In-Situ Thermal Response Test using CFD Analysis
Sim, Yong-Sub ; Lee, Hee-Sang ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 28~35
DOI : 10.5762/KAIS.2016.17.1.28
The in-situ thermal response test for the design of a ground heat exchanger of geothermal heat pumps have difficulty in predicting the outlet temperature according to the variation of conditions due to the expense and time. This paper suggests a 3-D CFD analysis method to predict the heat transfer performance of vertical type ground heat exchanger, which is mostly used in national, and the outlet temperature and the slope of two in-situ thermal response tests were compared to test the proposed CFD reliability. The results of CFD analysis showed that the outlet temperature was predicted to within
of the actual value and the slope was predicted to within 1.6%. The reliability of the CFD analysis method was confirmed using this process, and the outlet temperature prediction of the two in-situ thermal response tests was obtained by changing
of the flow rate and the effective thermal conductivity conditions, respectively. The results of CFD analysis showed that the outlet temperature of Case 1 was 28.0 (-20%) and
(+20%) for the flow rate variation and
(+20%) for the effective thermal conductivity variation, and the outlet temperature of Case 2 was 28.4 (-20%) and
(+20%) for the flow rate variation and
(+20%) for the effective thermal conductivity variation.
A Study of Student Nurses' Knowledge and Awareness about Patients' Personal Information Protection
Bae, Yunjo ; Lee, Soyung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 36~44
DOI : 10.5762/KAIS.2016.17.1.36
This study examined the nursing student's preliminary knowledge and awareness of patient's personal information protection. 187 respondents, who were trained in 2 different nursing colleges in Kyungpook province, participated in the survey from May 18 to June 12, 2015. Using the data collected, descriptive statistics, T-test and one-way ANOVA were implemented. As a result, the student nurses, who had heard about the Personal Information Protection Act showed a significantly higher awareness score of patient's personal information protection behavior than those who did not. The respondents educated in personal information protection were reported to have a higher score of awareness about the patient's personal information protection behavior. In this regard, it is vital for university organizers to develop education associated with ethics and information security, which could enhance the perceptions of personal information protection for student nurses before their working career begins.
Pruritus in Burn Survivors
Kim, Kyung Ja ; Won, Mi Hwa ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 45~53
DOI : 10.5762/KAIS.2016.17.1.45
This study examined pruritus to provide the data based on burn patient pruritus. A self-report questionnaire survey was conducted among ninety five burn survivors, who were over 18 years of age with admission periods longer than two weeks. The results indicated that the average burn range was
, severity was
, and distress was
. A significant difference in pruritus consequences was observed according to frequency. The patients consistently experienced pruritus, even if it happened less often, difficulty in falling asleep (F=4.817, p=.004), poor mood (F= 5.955, p=.015)), and loss of concentration (F=6.483, p<.000). A significant difference in the pruritus consequences according to duration was observed, lasting for 30 minutes for all groups, more than the population and less than 30 minutes, difficulty in falling asleep (F=7.452, p<.000), poor mood (F=3.655, p<.015), and loss of concentration (F=12.564, p<.000). The frequency, duration (r=.29, p=.004), severity (r=.45, p<.000), distress (r=.44, p<.000), and consequences of pruritus in burn patients (r=.29, p=.004) showed a positive correlation. The results of this study could be used as a base material for the care of burn patients experiencing pruritus.
The exploration of the effects of word frequency and word length on Korean word recognition
Lee, Changhwan ; Lee, Yoonhyoung ; Kim, Tae Hoon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 54~61
DOI : 10.5762/KAIS.2016.17.1.54
Because a word is the basic unit of language processing, studies of the word recognition processing and the variables that contribute to word recognition processing are very important. Word frequency and word length are recognized as important factors on word recognition. This study examined the effects of those two variables on the Korean word recognition processing. In Experiment 1, two types of Hangul words, pure Hangul words and Hangul words with Hanja counterparts, were used to explore the frequency effects. A frequency effect was not observed for Hangul words with Hanja counterparts. In Experiment 2, the word length was manipulated to determine if the word length effect appears in Hangul words. Contrary to the expectation, one syllable words were processed more slowly than two syllable words. The possible explanations for these results and future research directions are discussed.
Association of food insecurity and depression in Korean adults
Lee, Kowoon ; Yoo, Hye-Sook ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 62~71
DOI : 10.5762/KAIS.2016.17.1.62
Food insecurity is associated with poor health outcomes. In particular, previous studies marked the adverse outcomes on mental health. This study examined the association of food insecurity and mental health in Korean adults using the data from the 2013 Korean National Health and Nutrition Examination Survey (KNHANES). The study population was 5,685 adults in Korea. Food insecurity was examined using 18-items. A diagnosis of depression was considered to be depression. Depressive symptoms were defined as more than 2 weeks of depression feelings. Multivariate logistic regression models examined the associations between food insecurity and depression and depressive symptom. The overall prevalence of depression was 3.8% in the participants. Food insecurity was associated significantly with depression and depressive symptom in the unadjusted and age and sex adjusted model. Food insecurity was associated with depression, depressive symptoms in the multivariate logistic regression model (OR:3.49, OR:3.70). Marginal food insecurity was not associated with depression in the multivariate logistic regression model. The results showed that food insecurity is associated with depression and depressive symptoms in adults. Multi-disciplinary interventions are needed including nutrition, health, health policy, and a healthy environment for the food insecurity group to achieve a better health outcome, especially mental health.
The Effect of Oral Health Index and Dental Prosthesis Needs on Oral Health Related Quality of Life in Korean Elderly
Lee, Hee-Sung ; Kim, Han-Gon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 72~78
DOI : 10.5762/KAIS.2016.17.1.72
This study examined the oral health-related quality of life of the elderly using the oral health index and dental prosthesis status, and explored methods to improve the oral health status. The data collected from 'The fifth Korean national health and nutrition examination survey 2010' were analyzed. The subjects were 2273 elderly people, aged 65 years or older, who had completed an oral examination, health questionnaires and nutrition examination. Statistical analysis was done using the SPSS 22.0 for Windows. Frequency analysis, multiple regression analysis and structural equation model were used for statistical analysis. The general characteristics, oral health index and dental prosthesis showed differences in the subjective oral health status associated with as age, ST, FS-T, T-Health, maxillary crown needs, maxillary denture needs, mandibular denture needs, chewing status associated with the income level, FS-T, maxillary crown needs, maxillary denture needs, mandibular denture needs, speaking status associated with the ST, T-Health, maxillary implant status, and maxillary denture needs. In conclusion, both the oral health index and dental prosthesis needs affect the oral health related quality of life of the elderly. Governments should implement a variety of oral health programs and dental prosthesis policies to improve the quality of life related oral health of the elderly.
Experimental Study for Concrete Base to Sleeve connection of Hybrid Substructure for Offshore Wind Turbine
Lee, Jeong-Hwa ; Byun, Nam-Joo ; Kim, Seong-Hwan ; Park, Jae-Hyun ; Kang, Young-Jong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 79~87
DOI : 10.5762/KAIS.2016.17.1.79
In this paper, concrete base to sleeve connections of hybrid substructures for offshore wind turbines were suggested and investigated experimentally. Punching shear strength tests with well-instrumented three connections under different reinforcement ratios and loading conditions were conducted to investigate the punching shear strength and the behavior of the concrete base to a sleeve connection. The test results showed that the punching strength and stiffness of the connections are affected mainly by the reinforcement ratios. The loading conditions with an axial load and proportional moment cannot affect the stiffness but affect the strength of the connections because of the axial load-moment interaction. The punching shear failure and critical section of the each test specimen are also discussed.
Performance Comparison between Indirect Evaporative Cooler and Regenerative Evaporative Cooler made of Plastic/Paper
Kim, Nae-Hyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 88~98
DOI : 10.5762/KAIS.2016.17.1.88
The Korean summer is hot and humid, and air-conditioners consume considerable amounts of electricity. In such cases, the simultaneous use of indirect evaporative coolers may help reduce the sensible heat and save electricity. In this study, heat transfer and pressure drop characteristics of indirect or regenerative evaporative coolers made from plastic/paper are investigated. The results showed that heat and mass transfer model based on the
method predicted the indirect evaporation efficiencies, cooling capacities and pressure drops adequately. Both for indirect or regenerative evaporative cooler, the indirect evaporation efficiency increased with increasing dry channel inlet temperature or relative humidity. The indirect evaporation efficiency of the regenerative evaporative cooler was larger than that of the indirect evaporative cooler.
A Study on the Determinants of Fans' Team Identification in KBO League : Focused on the Effects of Kids Marketing
Choi, Seung-Nyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 99~110
DOI : 10.5762/KAIS.2016.17.1.99
This study examined the factors affecting the team identification of professional baseball fans. The factors were divided into the fan factor, game factors, and other factors. For the analysis, two investigators visited stadium three times in total and a total number of 297 spectators were sampled using a convenience sampling method from three baseball teams. For the fan factor, a fan who began supporting his/her team from childhood or after childhood was used as a dummy variable. The interaction effects between the fan factor and other variables were investigated to offer a stereoscopic understanding about the role of kids marketing. In addition, three game factors and four non-game factors were analyzed. The results regarding fan variable and interaction effects were obtained. Fans from their childhood have much stronger team identification, and show interaction effects with the players. Regression analysis revealed player, promotion and fan service, price, and regional connection to have positive relations with team identification. This study is especially meaningful in a sense that it has proposed positive results regarding marketing to children, and the results will contribute to both the academic field and the industry.
Influence of Mechanical Properties and Pore Structure on the Scaling Resistance of Concretes
Lee, Seung-Tae ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 111~118
DOI : 10.5762/KAIS.2016.17.1.111
The scaling of concrete caused by the combined effects of frost and deicing salt is one of the principle causes of damage to transportation infrastructure in cold-climate regions. In this study, to evaluate the factors affecting scaling resistance of concrete, the relationship between the properties of concrete, such as the mechanical properties and pore structure, and scaling resistance was examined experimentally. The test results showed that the scaling resistance was strongly dependent on the absorption properties of concrete, but not on the compressive strength. Furthermore, it is believed that both the spacing factor and specific surface of the air voids was not a good parameter for evaluating the scaling resistance of concrete. SGC concrete was less durable than OPC and SFC concrete with respect to the scaling resistance in the scope of the present study.
Dynamic Analysis of Wheel-Rail High Speed Train Propelled by Superconducting Linear Synchronous Motor
Lee, Jin-Ho ; Lee, Chang-Young ; Jo, Jeong-Min ; Han, Young-Jae ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 119~125
DOI : 10.5762/KAIS.2016.17.1.119
This study examined the running dynamic characteristics of a hybrid type wheel-rail high speed train, in which the propulsion method of maglev is applied. A wheel-rail high speed train propelled by a superconducting linear synchronous motor (SC-LSM) is expected to be superior to a maglev train regarding economical and interoperable aspects, still having powerful thrust force as maglev. In this paper, regarding the two methods of applying the SC-LSM to an existing wheel-rail train, to investigate the influences of SC-LSM propulsion on the dynamic characteristics of wheel-rail high speed train, the dynamic model of train including interaction between the rotor and stator of SC-LSM is established. Through the simulation using the model, the influence of the interaction between the rotor and stator of SC-LSM on stability, ride comfort and the effect of guideway irregularity are investigated.
Prevalence of sarcopenia in association with ADL, nutritional status and depression among community dwelling elderly women
Shin, Yeonghee ; Hong, Yong Hae ; Kim, Hae-Ok ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 126~134
DOI : 10.5762/KAIS.2016.17.1.126
The aim of this cross sectional study was to examine the prevalence of sarcopenia in association with ADL, nutritional status and depression among community dwelling elderly women. The study subjects were 90 elderly women, 65 years and over, who were living in the communities of B and D metropolitan cities from May to July, 2014. The measurements were anthropometric measures, The mini-nutritional assessment instrument (MNA), ADL, IADL, MMSE, and SGDS-K were used. The mean age of the subjects was 74.7(8.22), the prevalence of sarcopenia of this population was 37.8%, almost none of them (94.4%) required assistance in ADL, 15.6% had a risk of undernutrition, and 12.2% had the symptom of depression. The sarcopenic subjects were characterized as low income, low education, living alone, and had more co-morbidity than those of the non-sarcopenic subjects. The sarcopenic subjects were undernourished, and had higher depression scores (SGDS-K), but not in the ADL, than those of the non-sarcopenic subjects. The calf and thigh circumferences, and cognitive ability were the best predictors of sarcopenia, In conclusion, low calf and thigh circumferences and low cognitive ability will increase the risk of sarcopenia in those 65 and over in community dwelling facilities and those three predictors will be useful in the early detection of sarcopenia in the future.
Compressive Strength Evaluation of Longitudinally Stiffened Octangular-Section Modular Shell Towers
Choi, Byung Ho ; Kim, Jung Won ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 135~140
DOI : 10.5762/KAIS.2016.17.1.135
This paper examined the uniaxial compressive strength of longitudinally-stiffened octangular modular section towers. Through a series of comparative studies, the 3-dimensional finite element analysis results were considerably larger than the nominal strength values based on Eurocode. Therefore, the design strength equations are simply applicable to the design of the octangular-section tower module, but a more rational method will be needed to properly predict the capacity.
Influence of the Emotional Intelligence, Communication Competence and Stress coping on Turnover Intention in Psychiatric Nurses
Kang, Hye-Seung ; Kim, Yoon-Young ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 141~151
DOI : 10.5762/KAIS.2016.17.1.141
This study examined the influence of the turnover intention and emotional intelligence, communication competence and stress coping of psychiatric nurses. A self-reported questionnaire was filled out by 160 Korean Psychiatric nurses from February 2 to February 27, 2015. The data were analyzed using the frequencies, t-test, ANOVA, Pearson's correlation, stepwise multiple regression using IBM SPSS 20.0. The turnover intention showed a close correlation with the emotional intelligence (r=-.638 p<.001), stress coping (r=-.649, p<.001), and communication competence(r=-.694, p<.001) in psychiatric nurses. The turnover intention and emotional intelligence, stress coping, communication competence explained 54.5% of the total variance of clinical competence in psychiatric nurses. Therefore, it is necessary to develop and implement a curriculum and program to improve the turnover intention and emotional intelligence, stress coping, communication competence of psychiatric nurses.
Inhibitory Effects of Human Glutamate Dehydrogenase Isozymes by Antipsychotic Drugs for Schizophrenia
Nam, A-Reum ; Kim, In-Sik ; Yang, Seung-Ju ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 152~158
DOI : 10.5762/KAIS.2016.17.1.152
Glutamate is one of the major excitatory neurotransmitters in the central nervous system of vertebrates. Human GDH (hGDH) is the enzyme that regulates the glutamate metabolism and its expression is higher in the brains of schizophrenia patients than in normal subjects. This study examined the changes in the hGDH enzymatic activity caused by antipsychotic drugs (haloperidol, risperidone, (
)-sulpride, chlopromazine hydrochloride, melperone, (
)butaclamol, domperidone, clozapine) related to schizophrenia. First of all, hGDH isozymes (hGDH1, hGDH2) were synthesized by genetic recombination. As a result of the enzyme assay, haloperidol, (
)-sulpride, melperone and clozapine had an inhibitory effect on the hGDH isozymes. In addition, haloperidol showed a non-competitive inhibition against the substrate, 2-oxoglutarate. In contrast, it showed an uncompetitive inhibition against another substrate, NADH. The inhibitory effect of haloperidol on hGDH2 was abolished by the presence of L-leucine, an allosteric effector of hGDH, but by not other antipsychotic drugs. These results revealed the inhibition of enzyme activity by psychotropic drugs in hGDH isoenzymes (hGDH1 and hGDH2) and the possibility that haloperidol may be used to regulate the GDH activity and glutamate concentration in the central nervous system.
Flight Envelope Load Factor Limit Logic Design for Helicopter Fly-By-Wire Controller
Choi, In-Ho ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 159~164
DOI : 10.5762/KAIS.2016.17.1.159
This paper reports the load factor logic design for a fly-by-wire helicopter flight envelope protection. As a helicopter is very complex system with a rotor, fuselage, engine, etc., there are many constraints on the flight region. Because of these constraints, pilots should consider them carefully and have a heavy workload, which causes controllability degradation. In this respect, automatic logic is needed to free the pilot from these considerations. As one of these logics, the flight envelope protection logic for the load factor of a FBW helicopter was designed. The flight to exceed the load factor is caused by an abrupt pitch cyclic stick change. In this scheme, the load factor limit logic was added between the pilot stick command block and pitch attitude command block. From the current load value, the available attitude range was calculated dynamically and simulated on the helicopter simulator model to verify the performance. A comparison of the simulation results at the hovering and forward speed region with and without applying the load limiting logic showed that the load factor limit was exceeded more than 20% when the logic was not applied, whereas with the load factor limit logic the load factor was within the limit. In conclusion, a dynamically allocated limitation logic to helicopter FBW controller was verified by simulation.
The Effects of Rehabilitation Hospital Nurses' Professional Autonomy and Self-Efficacy on Professional Self-Concept
Kim, Sang Hee ; Kim, Nam Hee ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 165~174
DOI : 10.5762/KAIS.2016.17.1.165
The aim of this descriptive correlation research was determine the factors affecting the professional self-concept of nurses working at rehabilitation hospitals. The data were collected from 192 nurses working at three rehabilitation hospitals with less than 300 beds in B City and at two in D City from May 1 to 30, 2015, and then analyzed using the SPSS Win 18.0 program. They scored 3.03 for professional autonomy, 3.43 for self-efficacy, and 3.25 for professional self-concept on average; professional autonomy was positively correlated with the professional self-concept and self-efficacy was strongly positively correlated with the professional self-concept. The professional self-concept generally accounted for 46.9% and the self-efficacy had the greatest impact on the professional self-concept, accounting for 33%. Based on these results, it is necessary to help rehabilitation hospital nurses improve their self-efficacy and develop standardized professional education programs to give them pride and dignity.
Study on a recipe of recycled bumper and pristine materials for application of vehicle parts
Son, Younggon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 175~180
DOI : 10.5762/KAIS.2016.17.1.175
Waste bumpers from out-of-service vehicles are recycled in the manufacturing process of plastic parts by incorporating pristine materials after removing the coated paint on a bumper. This study examined the chemical properties and mechanical properties of a mixture of recycled bumper and pristine materials as a function of the mixing ratio. When the pristine materials and the recycled bumper pieces were mixed, the stiffness (tensile strength and the flexural modulus) was provided by their composition averages. On the other hand, the toughness (Izod impact strength and the elongation-at-break) was lower than their composition averages (i.e., negative deviation). FTIR analysis showed that these results were due to the absence of the compatibility between the pristine materials and recycled bumper pieces. When the recycled bumper pieces were loaded at more than 30 wt. %, the toughness decreased drastically. A previous study showed that a paint removal efficiency up to 80 wt.% was easily attainable. The other 20 wt.% of paint on the bumper is very difficult to remove. Therefore, this study examined the mechanical properties of a mixture of recycled bumper pieces containing the unremoved paint and recycled bumper pieces without paint. When the recycled bumper pieces containing the unremoved paint were incorporated in only small quantities, the mechanical properties were decreased to a great extent. These results show that the paint removal efficiency is very important in the recycled bumper industry.
Design simulation of magnetic separator for purification of silica sand
Choi, Hyun-Jin ; Jo, Young Min ; Lee, Jun Yub ; Kim, Sang Bum ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 181~187
DOI : 10.5762/KAIS.2016.17.1.181
Silica is an essential material in the electronics industries of LCDs and OLEDs, which particularly require high purity. This study attempted to find the optimal design of a magnetic separator for silica sand containing iron compounds using CFD simulation. Three designs of magnetic separation were prepared and their efficiency was examined. As a result of the evaluation, the sufficient contact of particulate silica with the surface of magnetic emitters improved the magnetic separation effects. In addition, the loss of
and the removal rate of
depended strongly on the particle size, flow rate and magnetic flux density. In addition, magnetic separation is quite effective for a particle size of
with a 0.2 m/s flow rate.
The Lived Experiences of Clinical Nurses Who working at the Women's Hospital Caring for Foreign Wives in Korea: A Narrative Study Approach
Yih, Bongsook ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 188~198
DOI : 10.5762/KAIS.2016.17.1.188
This study explored the experience of clinical nurses caring for foreign wives in Korea. A narrative study approach within the qualitative research paradigm was applied in this study. The data were collected using individual in-depth interviews with 10 clinical nurses who had at least 5 years working experiences caring for foreign wives and their children in the Women and Children's clinical setting. The narrative stories of the clinical nurses were analyzed in the frame of culture-bounded nursing care. In the culture-bounded nursing care, ethnocentric viewpoints, acceptable viewpoints, and culture-based viewpoints were identified within the time frame. Significantly, the narrator identified herself as a therapeutic caregiver in the culture-based viewpoints providing tailored caregiving for foreign wives. This study requires cultural sensitivity of nurses who care for the people with different cultural backgrounds. Self-awareness would be the starting point to reach culturally competent nursing care.
The Disaster Welfare and Community Response in Japan
Park, Jung-Ran ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 199~208
DOI : 10.5762/KAIS.2016.17.1.199
This study examined the trends and practices of disaster welfare in Japan, particularly with the point of view of the community response. This study summarized the experiences and implications of Japan's disaster welfare. First, it is necessary to establish a foundation and linkage of support networks. In case of a disaster, the linkages among administrations, social work institutions, and community residents are required to understand the accurate situation and needs, and to develop resources. In particular, the constitution of DWAT was submitted for initial intervention. Second, the establishment of a manpower dispatching system is needed for emergency situations. In addition, the methods to cover the entire areas by system are needed. Third, the intervention of psychological treatment was shown have a low agreement rate among specialists. Fourth, it is necessary to have guidelines so that privacy protection is compatible with disaster support in a disaster welfare practice process.
The health care experience of the clinical nurse in a university hospital
Kim, Mi-Hye ; Lee, Jeong-Seop ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 209~218
DOI : 10.5762/KAIS.2016.17.1.209
This study analyzed the data using the phenomenological method proposed by Colaizzi (1978) to understand the meaning and reality of the health care experience of clinical nurses in a university hospital. The data were collected from 9 participants, who were nurses in a university hospital in the city of S from Oct 4, 2015 to Oct 30, 2015. The results showed that the health care experiences of the participants may be categorized into 5 categories, 'ambivalence toward the physical health care', 'pressure over physical exercise', 'the difficulty arising out of shift work', 'stress management', and 'rediscovery of self', and may be identified with a 14 theme cluster and 42 themes.
Multi-objective Optimal Design using Genetic Algorithm for Semi-active Fuzzy Control of Adjacent Buildings
Kim, Hyun-Su ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 219~224
DOI : 10.5762/KAIS.2016.17.1.219
The vibration control performance of a semi-active damper connected to adjacent buildings subjected to seismic loads was investigated. The MR damper was used as a semi-active control device. A fuzzy logic control algorithm was used for effective control of the adjacent buildings connected to the MR damper. In the buildings control coupled with a MR damper, the response reduction of one building results in an increase in the response in another building. Because of these conflict characteristics, multi-objective optimization is required. Therefore, a fuzzy logic control algorithm for the control of a MR damper was optimized using a multi-objective genetic algorithm. Based on numerical analyses, the semi-active fuzzy control of MR damper for adjacent coupled buildings can provide good control performance.
Relationship between competition in banking industry and bank's risk-seeking tendency
Sung, Jimin ; Park, Chang Gyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 225~233
DOI : 10.5762/KAIS.2016.17.1.225
This study examined how the level of competition in the banking industry affects the risk-seeking tendency of individual banks. In earlier studies, the NPL ratio was used as an indicator of the risk-seeking tendency, but this ratio has limits because it is an ex post indicator of the risk. Therefore, the asset risk was chosen as a new indicator of the risk-seeking tendency, which is an ex ante measure of the risk, and the data were analyzed. The results suggested that there is a negative correlation between the level of competition of the banking industry and the risk-seeking tendency. Interestingly, opposite results were obtained when the NPL ratio was applied as an indicator of risk-seeking tendency. Therefore, the correlation between the level of competition in the banking industry and the risk-seeking tendency depends on the indicator of the risk-seeking tendency. This means choosing the appropriate indicator is the key component leading to precise results. The asset risk is more consistent with the concept of risk-seeking tendency than the NPL ratio, and it is a more appropriate indicator considering that the asset risk is a relatively less affected indicator other than risk-seeking tendencies.
A Study on the Self-confidence in Performance and Education Demand of First Aid in Kindergarten and Daycare Center Teachers
Hwang, Ji-Young ; Oh, Eun-Soon ; Cho, Keun-Ja ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 234~243
DOI : 10.5762/KAIS.2016.17.1.234
The aim of this study was to identify the self-confidence in performance and education demand of first aid in kindergarten and daycare center teachers. The data from a questionnaire were collected from teachers in kindergarten and daycare centers from March 5 to 31, 2015. The responses from 149 teachers were analyzed using SPSS 21.0. The results showed that self-confidence in the performance of first aid was mostly low (mean score 2.70), but was significantly high in cases of having a willingness to perform first aid (p=.002). The education demand for first aid was mostly high (mean score 4.04), and significantly high in the case of having experience of emergency situations (4.21, p=.006), and being educated in first aid while working in a childcare facility (4.14, p=.001). Therefore, it is important to educate teachers in first aid regularly after developing an optimized program considering the frequency of emergency situations, and level of self-confidence in the performance and education demand of first aid.
Numerical Investigation of the Effect of flow Passage Variation on the Projection Distance of the Foam Monitor
Lee, Young-Hoon ; RYU, Young-Chun ; Seong, Jeong-Hyun ; Park, Young-Chul ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 244~251
DOI : 10.5762/KAIS.2016.17.1.244
In this study, the relationship between flow characteristics and projection distance, depending on the shape was examined. A numerical investigation technique for fluid analysis of a foam monitor was developed for the prediction, comparison and validation of the actual injection performance. The foam monitor changes the flow pattern of fluid flow according to the shape, The fluid losses were calculated from the numerical investigation affecting the projection distance. The basic form of foam monitor was used as a designed shape in N. The modified model used the length increase model of the flow path, and straight line of the model. The inlet pressure was 6.5bar. The results showed that the length increase model of the flow path and straight line of the model in the nozzle projection distance had improved. The results comparing the error rates projection performance were well matched to the 7.43% obtained from the validity test of the analysis method.
The Strategy of City Brand Activation by Confusion Content - Case Study of Andong City and Qufu City
Ha, Kyu-Soo ; Moon, Ji-Eun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 252~263
DOI : 10.5762/KAIS.2016.17.1.252
This study considered the factors of city brand reinforcement and city revitalization through a case study of two cities that were successful in revitalizing using a brand strategy. World leading cities are securing city competitiveness through the culture resources, particularly traditional culture, as a key asset to highlight the cities' uniqueness in increasing their value. The Confucianism influence on Korean traditional culture has a valuable content like etiquette, ritual ceremony, food, education, etc. as well as culture heritage in historical architecture. Therefore, it can be used as the city's assets to promote it worldwide. On the other hand, there is difficulty in preserving most Confucianism culture content and the intangible cultural properties have been neglected. This needs to be applied actively to be used on a city brand strategy. This study reviewed the successful case of Andong city in Korea and Qufu city in Sandong, China and suggests ways of raising the cities' brand power.
The relationship between halitosis, stress, and psychological status among Korean adolescents
Park, Hee-Jung ; Han, Seong Min ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 264~273
DOI : 10.5762/KAIS.2016.17.1.264
This study examined the relationships among halitosis, stress and psychological status using a cross-sectional survey of 3,689 adolescents (1,805 male 1,884 female) from the 2010 Korean Survey on the Health of Youth and Children. The related factors of halitosis were checked and the path model was also examined using AMOS 19.0 programs. The prevalence of halitosis was 27.4%. Based on path analysis, the significant coefficients paths were as follows:
. Halitosis had an indirect effect on the psychological status linked to depression, anxiety, tension, and hostility via stress. Overall, the results provide stronger support for the halitosis impact of stress and psychological health. Moreover, the effective prevention of halitosis may be important for understanding the specific psychological factors.
The Usefulness of Hard Time Task for Weapon System in Considering Shape Parameter of Weibull Life Time Distribution and Maintenance Cost
Kim, Mansoo ; Ji, Woong Ki ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 274~283
DOI : 10.5762/KAIS.2016.17.1.274
The study of maintenance planning is important in military weapon systems because it can improve their availability and reduce the operational and maintenance cost during the total life cycle. In maintenance planning, it is important to determine the preventive maintenance task and its optimal interval. This paper focuses on the hard time task, which is one of the preventive maintenance tasks. A hard time task removes an item or restorative action before some specified maximum age limit to prevent functional failure. The Monte-Carlo simulation model was proposed to help understand the cost effectiveness of a hard time task. In the simulation, various shape parameters of the Weibull distribution and cost ratio of corrective maintenance to preventive maintenance were assumed. Using a Monte-Carlo simulation, a quantified cost saving effect and optimal preventive maintenance interval were suggested.
Permanent Ground Deformation Effects on Underground Wastewater Pipeline Performance
Jeon, Sang-Soo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 284~289
DOI : 10.5762/KAIS.2016.17.1.284
In recent years, the earthquake sequence in Christchurch, New Zealand (NZ) was unprecedented in terms of repeated earthquake shocks with substantial levels of ground motion affecting modern infrastructure, and in particular, broad and precise reports for liquefaction-induced permanent ground deformation (PGD) and repairs of wastewater (WW) pipelines were collected. In this study, a geographical information system (GIS) and linear regression analysis were performed using data for the length and repair points of earthenware (EW) and concrete (CONC) wastewater pipelines acquired after the MW 6.2 February 22, 2011 earthquake. The repair rates (repairs/km) for the EW and CONC wastewater pipelines were evaluated inside the areas of PGD, and both angular distortion of ground and lateral ground strain were calculated from the high resolution LiDAR data acquired before and after the seismic event. The research results showed that both pipelines have similar trends of damage but the CONC wastewater pipeline with higher stiffness showed less damage. The results of linear regression analyses can be used to predict the repair rates for EW and CONC wastewater pipelines inside the areas of PGD induced by future earthquakes.
Dust collection system optimization with air blowing and dust suction module
Jeong, Wootae ; Kwon, Soon-Bark ; Ko, Sangwon ; Park, Duckshin ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 290~297
DOI : 10.5762/KAIS.2016.17.1.290
The performance of track cleaning trains to remove accumulated fine particulate matter in subway tunnels depends on the design of the suction system equipped under the train. To increase the efficiency of the suction system under the cleaning vehicle, this paper proposes a novel dust suction module equipped with both air blowing nozzles and a dust suction structure. Computational Fluid Dynamics (CFD) analysis with turbulent flow was conducted to optimize the dust suction system with a particle intake and blowing function. The optimal angle of the air blowing nozzle to maximize the dust removal rate was found to be 6 degrees. The performance of the track cleaning vehicle can be increased by at least 10 percent under an operation speed of 5km/h.
Ultimate Strength Interaction of Steel Tubular T-Joint Subjected to Concurrent Action of Compression and Bending
Kim, Kyung-Sik ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 298~303
DOI : 10.5762/KAIS.2016.17.1.298
Owing to the advantages of reduced weight and wind effect, the space-framed towers that consist of vertical and horizontal members of circular hollow tubular sections have been adopted widely for various purposes. It is critical to guarantee the strengths of tubular joints where vertical and horizontal members are connected structurally to make the entire space-framed system behave as a single tower structure. In this study, a strength evaluation was conducted for T-type tubular joints subjected to the concurrent action of compression and bending. Three of the available design codes, i.e., AISC, Eurocode 3, ISO 19902 were investigated and a design equation was suggested for an ultimate strength interaction between the axial force and bending moment based on nonlinear finite element analyses by selecting the slenderness ratios at the joints as major parameters.
Compassion Fatigue Experience of Oncology Nurses
No, Ji-Yeong ; Ahn, Hwang-Ran ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 304~314
DOI : 10.5762/KAIS.2016.17.1.304
This study was conducted to understand the meaning and nature of the compassion fatigue experiences among nurses working in oncology wards. The participants in this study were 11 nurses who worked for at least 6 months in oncology wards. The data were collected using in-depth interviews and analyzed using the phenomenological method by Giorgi. Six categories of the meaning of compassion fatigue were derived as follows; physically difficulty, emotion is control of patient's condition, collapsing in front of cancer patients, reminding of patient-related memory, finding a changed attitude, and searching for how to recover.
Construction Method and Durability Evaluation of Mock-up Test for Bobsleigh Track
Lee, Kyeo-Re ; Han, Seung-Yeon ; Nam-Gung, Kyeong ; Yun, Kyong-Ku ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 315~323
DOI : 10.5762/KAIS.2016.17.1.315
This study examined the durability and method for making a mockup of bobsled tracks for constructing a bobsled stadium, which is a sport in the Winter Olympics. As bobsleigh games are very fast and dangerous, a safety design for players and a precise construction using highly efficient shotcrete is necessary. Moreover, a general molding construction is difficult because bobsleigh tracks are composed of various curves and slopes, and it is necessary to construct them using high-strength and high durability materials. The developed method for making a mockup and performing durability evaluation of bobsleigh tracks through this research will be applied in the construction of the 2018 Pyeongchang Winter Olympics Sliding centre and bobsleigh tracks using domestic techniques.
Effects of the simulation on the Ego Resiliency, Self-Efficacy and Satisfaction of Major of the Nursing Students
Kim, Eun-Ju ; Kang, Seung-Ju ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 324~330
DOI : 10.5762/KAIS.2016.17.1.324
This study examined the effects of simulation training for nursing students who completed one year of basic nursing education. The study focused on effects of simulation training exercises on areas including self-resilience, self-efficacy, and satisfaction during the course of study. The raw experimental study of a single group was a pre-post design. The general characteristics and ego resilience were measured to analyze the effects of simulated training, self-efficacy, a major pre-acquisition and satisfaction. The improvements of the self-resilience (t=-7.38,p<.001) and self-efficacy (t=-4.93,p<.001), Major satisfaction (t=-5.28,p<.001) were statistically significant. Therefore, the simulation training has a positive effect on nursing students in terms of the self-efficacy, major satisfaction. The purpose of this research is significant in that it is presented before the nursing college students begin clinical practice as the starting time of simulation training.
A Study on Development of a Smart Wellness Robot Platform
Lee, Byoungsu ; Kim, Seungwoo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 331~339
DOI : 10.5762/KAIS.2016.17.1.331
This paper developed a home wellness robot platform to perform the roles in basic health care and life care in an aging society. A robotic platform and a sensory platform were implemented for an indoor wellness service. In the robotic platform, the precise mobility and the dexterous manipulation are not only developed in a symbiotic service-robot, but they also ensure the robot architecture of human friendliness. The mobile robot was made in the agile system, which consists of Omni-wheels. The manipulator was made in the anthropomorphic system to carry out dexterous handwork. In the sensing platform, RF tags and stereo camera were used for self and target localization. They were processed independently and cooperatively for accurate position and posture. The wellness robot platform was integrated in a real-time system. Finally, its good performance was confirmed through live indoor tests for health and life care.
The Effects of Products Characteristics, Consumers Characteristics on Products Attitudes and Purchasing Intention of Import Agency Shopping Malls -Focused on the Moderating Effect of Perceived Risk-
Song, Sun-Yok ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 340~348
DOI : 10.5762/KAIS.2016.17.1.340
This study, through a review of advanced research, first, examined the attitudes to products traded in import agency shopping malls and the characteristic variables(product characteristic, customer characteristic) that influence the purchasing intention to understand influencing relationship. Second, the role of adjustment in the relationship between the attitude to the products and the purchasing intention was examined by putting the perceived risk to the moderating variables. Third, efficient controllable basic data in the characteristic variables capable of influencing the management of and import agency shopping mall based on the implications was obtained from the above research result. The 126 responses collected from a questionnaire were analyzed using the SPSS 23.0 statistics package, and the analysis result can be summarized as follows. First, the main cause that influences the attitude of treated products in an import agency shopping mall is the country of origin, national image, innovativeness and price perception, not the brand image. Second, the attitude of the products influences the purchasing intention of the import agency shopping mall. Third, the perceived risk partially plays a role as a moderating variable in the relationship between the attitude of products and the purchasing intention.
The Effect of Online Consumer's Shopping Values on Consumer Satisfaction and Loyalty
Moon, Yun Ji ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 349~356
DOI : 10.5762/KAIS.2016.17.1.349
This study analyzed the influence of online consumers' shopping values on customer satisfaction and loyalty. The shopping values in this paper include the utilitarian-, hedonic-, and social engagement-shopping values. The hypothesized research model was proposed based on five main constructs: three shopping values, customer satisfaction, and customer loyalty. This study tested the hypothesized model using the data from 182 consumers who purchased accommodation products over the last six months. The findings showed that consumers' shopping values have a significant impact on customer satisfaction. In addition, the customer satisfaction has a significant influence on customer loyalty. Online accommodation booking sites need to make efforts to recognize the consumers' different shopping values and social influences to use a website as a tool for managing customer relationships.
An Analysis on the Characteristics of Site Planning and Size of Newly-Built Elementary Schools in Sejong City
Song, Byung-Ha ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 357~366
DOI : 10.5762/KAIS.2016.17.1.357
This study compared 24 newly-built elementary schools in Sejong City regarding the size of the site and school, as well as the outdoor space to improve the site and space programming in school planning. Among the others, one result indicates that the overall number of classes in a school should be reduced to 48, including the affiliated kindergarten, instead of the present number of 50. In addition, the number of classes must be counted in lieu of the number of student by classifying the size of school. In light of the present mean ratio of school building area per site in the city of 24.6%, which is much higher than other comparable city schools, the ratio should be about 20.0% by increasing the sports facility and outdoor spaces. In addition, the deprivation of the area caused by the district-unit-plan and the irregularity of the place should also be considered when determining the size of a school and site.
The Establishment of Service Cloud Based Expansion and Developing Plan for National Spatial Data Infrastructure
Youn, Junhee ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 367~373
DOI : 10.5762/KAIS.2016.17.1.367
The construction of National Spatial Data Infrastructure (NSDI) started from 2008 and was completed at 2012, with the aim of co-utilizing public agencies' national spatial information by integrating and linking. Despite the existence of the NSDI, an update of spatial data is not fully reflected because the spatial information has not been updated simultaneously by NSDI and public agencies. By examining the public agencies' services using the spatial information, a national budget is wasted because the re-usable similar services are duplicated. These issues could be solved by adopting a cloud system, whose concept is co-utilizing IT resources, to the NSDI. This study examined the service cloud based expansion and development plan for NSDI. The plan included an implementation strategy for a spatial information service cloud system and an establishment plan for a governance system. The service scenarios, concept diagram, and service functions for the system were derived in a system implementation plan. For the service functions, the unit functions of two modules were proposed and specific functions were derived. In the establishment of a governance system, the business roles and business processes were defined for organizations managing service cloud based NSDI. The business role and process were defined and derived by each service life-cycle step. With the proposed system implementation plan, a detail system design and composition of the organization could be possible, and a service cloud-based NSDI system could be implemented.
The traffic accident factors and reduction method in the hazard zone of mountain sightseeing roads -focused on Jeju local roads-
Oh, Jae-Hwan ; Hwang, Kyung-Soo ; Kim, Kyung-Bum ; Yang, Jeong-Cheol ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 374~388
DOI : 10.5762/KAIS.2016.17.1.374
In Jeju-Do, there is the 1100 Road, 516 Road, and Bijarimro, which are typical mountain sight-seeing roads in Jeju. These roads are local roads that have been the location for many traffic accidents. This study focused on these roads, categorized the type of traffic accident and analyzed the accident characteristics. The major accident factors were analyzed through trip AHP analysis, Comparative analysis of the velocity distribution and the factors affecting traffic accidents were analyzed. Tourists took many trips on these roads. The mixing rate of the rental cars was 36.70%~71.60% in 1100 road and Bijarimro. Currently, these local roads are regulated by a speed limit of 60km/h. However, it might be necessary to reduce the speed limit to 40km/h considering the geometric line form of the road and the climate in these areas. The speed limit of more than 40km/h is found 87.0% on 516 Roads, 88.57% on 1100 roads, and 93.1% on Bjarimro, In these roads, the speed ratio is higher as described above. Therefore, these roads have been found to have a higher risk of traffic accidents by overspeeding driving. The overspeed driving ratio of these roads was 87.0%~93.1%, The overspeed driving enforcement method at one spot has only the effect of reducing the speed at that enforcement place; the effect cannot be expected for the other places or sections. It is necessary to introduce a section overspeed driving enforcement system utilizing the average velocity in these areas to prevent traffic accidents.
Proposed Design Guidelines for Optimum Economic Silo
Ko, Hune-Bum ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 389~398
DOI : 10.5762/KAIS.2016.17.1.389
Previous domestic studies on silos have been carried out in many ways in various fields. On the other hand, research on the design and construction of the silo itself have not be conducted actively and an economical approach is rare. The present study provides basic information to determine the scale of the most economical silo, while satisfying the necessary conditions required by construction companies or design firms. The analysis was carried out with various parameters for reinforced concrete structures, including four kinds of storage material (flour, granulated quicklime, sand, and iron ore), five capacity sizes (10,000, 30,000, 50,000, 70,000, 90,000 ton), eight variants of H/D (0.5~4), and three types of concrete compressive strengths (30, 35, 40 MPa). The findings established a general rule in that a silo designed between 1 and 3 H/D with a greater concrete strength (40MPa and over) depending on the type of storage material would be the most cost-effective (more than 50% of quantity and labor savings).
A study on satisfaction and status of use of village unit core facility in Busan - Focusing on project of administrative support type -
Park, Soung Eun ; Lee, Seok-Hwan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 399~408
DOI : 10.5762/KAIS.2016.17.1.399
This study conducted an analysis of the current use of and satisfaction with 40 village-unit core facilities that were created through a village-building project in Busan targeting users and non-users of the facilities. The study then examined ideas to promote the availability of the facilities. The results showed that for the users, they had been using the facilities for gathering and information-sharing, and the facilities were improving the interactions among the locals. In terms of non-users, the study confirmed that any relevant fields should develop diverse programs, start promotions in various ways and establish networks among neighbors to increase the non-users' use of the facilities In addition, the study found that the village-unit core facilities are working to encourage interactions among residents and that the locals' voluntary participation in operation of the facilities are needed. The study also suggested that networks across the local communities and diverse programs should be formed and developed.
Development and Evaluation of Separation Anxiety Scale for Mothers Using Child Care Facilities
Cha, Hyo Sung ; Ko, Jihyun ; Lee, Kyoung Ju ; Choi, Aelee ; Lee, Gunjung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 409~420
DOI : 10.5762/KAIS.2016.17.1.409
The aim of this study was to develop and validate an instrument to measure the separation anxiety of mothers who use child care facilities. The scale was developed as follows: initial items generated, validity and reliability tests performed, and final items extracted. The initial items were developed through a literature review and interviews. The content validity was verified by five experts. Using a final questionnaire, the data was collected from 204 mothers who used child care facilities with a convenient sampling method. The construct validity was evaluated by item analysis, exploratory factor analysis and confirmatory factor analysis. The results of confirmatory and exploratory factor analyses showed that the separation anxiety consisted of 6 factors: the mother's guilty feelings (5-items), safety of child care facilities (5-items), trust of teachers (5-items), child's anxiety (4-items), interaction anxiety with the child (4-items), and management of child care facilities (3-items). The separation anxiety scale for mothers using child care facilities consisted of 26 items. The reliability of the developed scale was examined. The Cronbach's
coefficient was 0.93. These results show that this scale is a valid and reliable instrument for measuring the separation anxiety level of mothers who use child care facilities.
The Study on Skin 1st Patch Test of Fermented Hydrolysate from Abalone(Haliotis discus hannai Ino)
Lee, Chung-Woo ; Hong, Kyung-Hee ; Chun, Yong-Jin ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 421~424
DOI : 10.5762/KAIS.2016.17.1.421
This study evaluated the efficacy and the skin safety and stability of a cosmetic that is an applied water extract and fermented hydrolysate of abalone (Haliotis discus hannai Ino), which was produced at the south coast of Korea. In the patch test, purified water, 1,3-butylene glycol and liquid crystal lotion were used as the reference group, and water extract and fermented hydrolysate of abalone and lotion formulation of water extract and fermented hydrolysate of abalone were used as the sample group. The results of patch test showed no irritation on skin among in any of the test groups. Therefore, the water extract and fermented hydrolysate of abalone (Haliotis discus hannai Ino) are safe for human skin.
The Study on Physical Therapy Students Attitude and Behavior for the Person with Disability
Oh, Jung-Lim ; Son, Ho-Hee ; Kim, Gi-Yeol ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 425~432
DOI : 10.5762/KAIS.2016.17.1.425
The purpose of this research was to examine the attitudes and behavior of physical therapy students toward the disabled. The subjects were 776 students at 6 cities and provinces nationwide with physical therapy. Self-reported questionnaires were used to collect data from 800, and 776 returned forms was analyzed using SPSS 21.0 ver. As a summary of the results, first, there was a more positive significant difference in the behavior toward disabilities in men than women; the higher grade they were, the more negative the significant difference in attitude toward the disabilities. Second, the subjects with disabled family members or friends had a positive attitude and behavior. Third, there was no difference as to whether to take classes related to disabilities, and there was a positive significant difference in the students who took voluntary service. Based on these results, interactions with disabled people affect the positive attitudes and behaviors toward disabilities. In addition, implications of the important roles of education curricula to take direct experience are suggested.
A Study on the Properties of sPEEK Electrolytic Membranes using Physical Crosslinking
Oh, Sae-Joong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 433~440
DOI : 10.5762/KAIS.2016.17.1.433
Composite membranes were prepared by the solution casting method from sulfonated poly(etheretherketone)(sPEEK) and imidazole and phosphotungstic acid(PWA) to enhance the electrolytic properties of the membrane. TGA measurements showed that physical crosslinking due to acid-base interactions improved the thermal resistance to the desulfonation of sulfonic acid groups of the composite membrane and the addition of PWA enhanced the resistance to thermal decomposition of the composite membrane. The acid-base interaction decreased the water uptake, proton conductivity and methanol permeability of the sPEEK/imidazole composite membranes. The addition of PWA increased the proton conductivities while it decreased the water uptake and methanol permeability of sPEEK/imidazole/PWA composite membranes. Therefore, the selectivity of the composite membranes was enhanced by the addition of PWA.
Integrative Review of Domestic Research Papers on Breast-Feeding Intervention
Choi, Eun-Young ; Park, Bock-Soon ; Park, Sun-Jung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 441~452
DOI : 10.5762/KAIS.2016.17.1.441
The purpose of this study was to examine the characteristics of domestic research into breast-feeding intervention education geared toward mothers and the content of the intervention based on the existing literature in an effort to provide information on how to offer the best intervention. Domestic studies reported between January 1993 and December 2014 were analyzed using four different databases. Fifteen studies were selected from 76 studies included in the databases after performing the searches. How long breast-feeding intervention remains effective should be studied to secure scientific rationales, which is one of the proper nursing interventions to boost breast feeding. As a result of analyzing the papers according to Whittmore and Knaf's integrative review method, the individual educational intervention was offered in two papers, and the individual education and group education were both provided in four. In nine papers, individual education, group education, phone counseling and education by home visits were all offered. Follow-up studies should be conducted by adopting a systematic research design to find more scientific evidence for appropriate nursing interventions to boost breast-feeding. These results will be useful for the development of educational programs for breast-feeding if more accurate information on breast-feeding education for mothers can be obtained.
The implementation of interface between industrial PC and PLC for multi-camera vision systems
Kim, Hyun Soo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 453~458
DOI : 10.5762/KAIS.2016.17.1.453
One of the most common applications of machine vision is quality inspections in automated production. In this study, a welding inspection system that is controlled by a PC and a PLC equipped with a multi-camera setup was developed. The system was designed to measure the primary dimensions, such as the length and width of the welding areas. The TCP/IP protocols and multi-threading techniques were used for parallel control of the optical components and physical distribution. A coaxial light was used to maintain uniform lighting conditions and enhance the image quality of the weld areas. The core image processing system was established through a combination of various algorithms from the OpenCV library. The proposed vision inspection system was fully validated for an actual weld production line and was shown to satisfy the functional and performance requirements.
An Experimental Study on the Flexural Performance of Modular Slab Connections with Loop Joints
Kim, Dong-Woan ; Shin, Jeong Ryol ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 459~467
DOI : 10.5762/KAIS.2016.17.1.459
Recently, new open-cut modular construction method, which is built within a 5~7m depth below the road, was proposed for the near-surface transit system to ensure the economic feasibility of underground structures. In this paper, the precast modular construction method was developed for the low-cost and rapid construction of underground structures. For the experiment on the flexural performance of the modular slab connections, a total of eleven specimens were fabricated according to the test variables; section shape, joint type, lap length, and transverse reinforcement. The test results were compared with those of the specimens without loop joints. To verify the performance of the slab connections, the 4-point loading tests of precast RC members with loop joints were conducted. As a result of the test, the flexural performance of the half-depth specimens with a 200mm lap length of loop joints were confirmed to be similar to those of the specimens without joints.
Reliability Analysis of Access Door Opening Force Measured with a Digital Force Gauge of a Pressurized Smoke Control Zone and Presentation of Optimum Conditions for the Opening Force
Lee, Jae-Ou ; Choi, Chung-Seog ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 468~473
DOI : 10.5762/KAIS.2016.17.1.468
The aim of this study was to measure the opening force of an access door of a pressurized smoke control zone and verify the reliability of the opening force. For the access door opening force, the opening load of the access door was measured before and after pressurized air had entered the smoke control zone. The reliability of the measured values was verified using the Anderson Darling's statistical analysis method of the Minitab Program. Because the analyzed P values were greater than 0.05 except for some floors before and after the operation of the smoke control equipment, the opening force was found to have 95% reliability. The normal distribution of the measured values showed no relationship with the operation of the smoke control equipment and the precision of the force gauge was believed to be reliable. The major factors for the optimal design of the pressurized smoke control equipment include the precision and reliability of the force gauge, the correct posture of the measuring person, and the same conditions for access doors. Therefore, a digital force gauge is believed to be suitable for measuring the opening force of the access door of a pressurized smoke control zone. In addition, standardization of the posture of a measuring person, the setup of the initial opening force of an access door, etc., are major variables for effective measurements of the door opening force of an access door.
The Effects of Cranio-Sacral Therapy on Brain Function Quotient of Elderly with Long-term Care Insurance Service
Lee, Jung-eun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 474~484
DOI : 10.5762/KAIS.2016.17.1.474
This study was performed to identify the effects of the improvement of brain function by CST on the elderly with the 2nd or 3rd grade of long-term care insurance service. A quasi-experimental design using a nonequivalent control group, pre-post test was used. A total of 12 elders (6 in the experimental group and 6 in the control group) were recruited. Upledger CST(10-Step Protocol) was performed on each subject for 50 minutes per session, once a week, for a total of 8 treatments over an 8 week period from Jan to Feb 2015. The brain function quotient was measured before the 1st CST and after the last CST by portable EEG measurement device using a 2 Channel neuro-feedback system. The data was analyzed by SPSS (Ver. 18.0) program. After CST intervention, the attention quotient (AQ), level of tension, anti-stress quotient (ASQ), emotion quotient (EQ) and brain quotient (BQ) of the experimental group was significantly better than that of the control group. These results showed that the CST was effective in reducing the level of fatigue by the AQ, increasing the physical and psychological stress relief by the ASQ, emotional balance by the EQ, and improving the total brain function by the BQ. Therefore, CST can be used as an effective intervention for improving the health and brain function of the elderly in health facilities.
The Dementia Knowledge, Attitude and Preventive Behavior of the Elderly Lived in the Urban-Rural Complex City
Kim, Koung-Me ; Yang, Young-Ok ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 485~492
DOI : 10.5762/KAIS.2016.17.1.485
This study examined the relationships among dementia knowledge, attitude, and preventive behavior of an urban-rural complex city. In this study, 483 subjects using welfare and health centers were selected from one urban-rural complex city. The data were collected using the questionnaires for dementia knowledge, attitude and preventive behavior. Data analysis was performed by descriptive statistics, t-test and ANOVA using SPSS 19 software. In both urban and rural areas, elderly more than 70 years of age, no spouse, less educated, and lower income had higher scores of dementia attitude. In addition, the dementia attitude scores were higher when they were thinking more of their bad health. In conclusion, there is a need to strengthen the training and programs for dementia's knowledge, attitudes and prevention activities by a spouse or family member in early elderly period.
A Study on Effect of the University Student's Entrepreneurship on Entrepreneurial Self-efficacy and Entrepreneurial Intention : Focusing on Mediating Effect of Opportunity Recognition
Kang, Jae-Hac ; Yang, Dong-Woo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 493~507
DOI : 10.5762/KAIS.2016.17.1.493
The aim of this study was to re-verify the importance of opportunity recognition as a mediating factor and add the entrepreneurial self-efficacy, which is recognized as another key factor that triggers start-up activities with the entrepreneurial intention, as a dependent variable. For this reason, in this study, 373 university students in Seoul, Gyeonggi-do Province, Inchon, were surveyed and analyzed empirically. The results of the study was as follows. First, the entrepreneurship partially affects the entrepreneurial self-efficacy and entrepreneurial intention. Second, the mediating effect of opportunity recognition between the entrepreneurship and entrepreneurial self-efficacy, and between entrepreneurship and entrepreneurial intention was verified.
Validity and Reliability of the Suicide Resilience Inventory-Korean Version for Korean University Students
Noh, Jun Hee ; Chang, Soo Jung ; Kim, Seong Eun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 508~517
DOI : 10.5762/KAIS.2016.17.1.508
The aim of this study was to test the validity and reliability of the Suicide Resilience Inventory-Korean version. Data were collected from 266 university students in Jeonbuk, South Korea. The Suicide Resilience Inventory-Korean version Suicide Resilience Inventory-25 was developed, and the collected data were analyzed using confirmatory factor analysis and Cronbach's alpha. Confirmatory factor analysis showed that The Suicide Resilience Inventory-Korean version(SRI-K) had factor loadings of the 19 items on the three subscales from 0.442 to 0.767. The three subscales model was validated by confirmatory factor analysis (RMSEA<.08,
). The internal consistency with a Cronbach's alpha was reliable with a total scale of 0.943. These findings show that the SRI-K has satisfactory construct validity and reliability to measure the ability to effectively overcome and to flexibly cope with the suicide risk.
The Relationships and Characteristics between Generic Skills and Undergraduates' Individual Variables
Song, Youngsook ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 518~525
DOI : 10.5762/KAIS.2016.17.1.518
This study examined the relationships and characteristics between generic skills and individual variables. The data from 187 students at a Korean university that participated in the Assessment of Higher Education Learning Outcomes (AHELO) feasibility study were utilized. The results indicated that there were no differences in generic skills according to gender, age, and grade point average (GPA). The field of study was the only variable showing a statistically significant difference in generic skills among the three groups. As a result of cluster analysis, four groups were formed based on the characteristics of generic skills. No differences in generic skills were observed among the four groups according to gender, age, and field of study. On the other hand, there was a statistically significant difference in generic skills among the four groups according to the GPA.
The change patterns of the Clustering of metabolic syndrome
Kim, Young-Ran ; Cheon, Hae-Kyung ; Lee, Tae-Yong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 526~537
DOI : 10.5762/KAIS.2016.17.1.526
Objective: This study examined the changes in the clustering of metabolic syndrome, and examined the distribution of a combination of clustering. Methods: The study was performed with the data from the same 1,900 people who had a medical checkup at a health clinic twice from 2009 to 2013. The subjects were divided into two groups of metabolic syndrome and non-metabolic syndrome (normal group) and examined according to the periodic changes. The related factors were examined with a cohort study. Results: The order affecting the prevalence of metabolic syndrome by the combination of metabolic syndrome constituent factors was two combinations (TG+HDL), three combinations (WC+TG+HDL), and four combination (WC+TG+HDL+BP). Conclusions: To manage these factors, public health programs will be needed and the methods to prevent metabolic syndrome should be promoted. In addition, more study on the risk factors of metabolic syndrome will be needed.
Data-based On-line Diagnosis Using Multivariate Statistical Techniques
Cho, Hyun-Woo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 538~543
DOI : 10.5762/KAIS.2016.17.1.538
For a good product quality and plant safety, it is necessary to implement the on-line monitoring and diagnosis schemes of industrial processes. Combined with monitoring systems, reliable diagnosis schemes seek to find assignable causes of the process variables responsible for faults or special events in processes. This study deals with the real-time diagnosis of complicated industrial processes from the intelligent use of multivariate statistical techniques. The presented diagnosis scheme consists of a classification-based diagnosis using nonlinear representation and filtering of process data. A case study based on the simulation data was conducted, and the diagnosis results were obtained using different diagnosis schemes. In addition, the choice of future estimation methods was evaluated. The results showed that the performance of the presented scheme outperformed the other schemes.
The Mediated Effects of Self Esteem, Social Support, and Stress Coping on the Relationship between Stress and School Adjustment of Multi Cultural Youth
Lee, Deok-Hee ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 544~552
DOI : 10.5762/KAIS.2016.17.1.544
In this study, the self-esteem by grasping the adaptation state of the stress and school multi-cultural youth, social support, and analyzed the changes that appear in response to them coping with stress. By utilizing the structural equations for that, this study analyzed the relationship between the adaptation to stress and school multi-cultural youth, in terms of coping with stress, social support, and examined the effect of adjusting the self-esteem of the parameters. The results of this study were as follows. Stress multi-cultural youth, social support and self-esteem are affected. On the other hand, a significant effect on coping with stress was not detected. Subsequently, to cope with the stress analyzed, social support, self-esteem effects of the defined parameters revealed a relationship between the adaptation to all stresses and school life.
Analysis on Elder Abuse of the Korea Elderly Long-term Care Hospital
Kwon, Kumju ; Lee, Seoyoung ; Park, Taejeong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 553~560
DOI : 10.5762/KAIS.2016.17.1.553
This study examined the specific phenomenon of elder abuse at elderly care hospitals. The relationship between the attitudes of the hospital and elder abuse was also examined. Methods: The participants were from 86 elderly care hospitals. Questionnaires contained structured questions on attitudes, practices and elder abuse-related items. The data were analyzed using descriptive statistics, and a t-test with SPSS program. Results: The following cases of specific abuse were noted: verbal aggression (39.5%), ignoring requests (24.4%), and threatening communication (22.1%). Furthermore, there were also cases of physical and sexual abuse. With these findings, this study suggested a few implications. Among them, it was stressed that a systematic investigation of elder abuse cases at hospitals be undertaken and the legal response should be regulated by law.
Review of educational strategies to facilitate desirable attitudes toward gerontological nursing
Yeom, Hyun-E ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 561~571
DOI : 10.5762/KAIS.2016.17.1.561
Purpose: This study reviewed the innovative educational strategies that have been implemented successfully in US baccalaureate nursing education programs to facilitate appropriate attitudes about caring for older adults. Methods: The data were collected through a search of PubMed and CINAHL using the key words, gerontological or geriatric, attitudes about aging or older people, baccalaureate or undergraduate nursing education or curriculum. Results: The successful strategies are categorized as follows: 1) a multidisciplinary approach integrating aging issues and gerontological contents into diverse nursing courses, 2) active participation of community-dwelling healthy older individuals as an educational mentor, 3) use of audiovisual materials to investigate the misconceptions and attitudes about aging, and 4) discussion through critical thinking and self-reflection toward aging. Implications: For the interdisciplinary approach within nursing courses, it is essential to derive the key contents for gerontological nursing applicable to integration into diverse nursing courses. In addition, it is necessary to provide administrative support for implementing innovative strategies and constructing consistent partnerships with the community for active participation of the elderly as a mentor. Lastly, recognizing the significance of educational strategies for enhancing desirable attitudes toward gerontological nursing and supporting the development of educational capability of a faculty are key issues.
The Types and Characteristics of the Male Nurses Perceived by Female Nurses : An Application of Q- Methodology
Seong, Ji-Suk ; Yeom, Eun-Yi ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 572~584
DOI : 10.5762/KAIS.2016.17.1.572
The aim of this study was to identify the female nurses' perception of the types and characteristics of male nurses using Q-methodology, which can explore human subjectivity. The 35 selected Q-statements from each of 35 subjects were classified into a normal distribution using a 9 point scale. The collected data was analyzed using the PC-QUANL program. Principal Component Analysis identified 3 types of perception toward male nurses. Type 1 was classified as 'development-oriented support type', Type 2 was classified as 'realistic critical type', and Type 3 was classified as 'conservative acceptance type'. The consensus of opinion in each type was 'Male nurses are under stress due to the unique characteristics of a female-dominated workplace'. These results will contribute to the perception improvement of female nurses toward male nurses by developing arbitration programs based on the three types.
A Study on the Development of Export Determinant Model for Laver of Producing District
Choi, Se-Hyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 585~590
DOI : 10.5762/KAIS.2016.17.1.585
The objective of this study was to develop an export determinant model for laver in the producing district. The annual and monthly amounts of laver products, local price, export price, and foreign exchange rate were included as explanatory variables. The estimation showed that the laver export is influenced more by the long term rather than short term product increase. In addition, as the foreign exchange rate and export price increase, the quantities exported decrease elastically. On the other hand, as the price in the local market increases, the quantities exported decrease non-elastically. Therefore, to enhance the laver exports, it is important to establish infrastructure for long term production increase, forecast and provide information on the export price and foreign exchange rate more accurately.
Heat Flow Characteristics on Type of Heat Transfer Plate for White Smoke Reduction under Uniform Flow Condition
Son, Jun ; Cha, Jae Min ; Wang, Zhen Huan ; Kwon, Young Chul ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 591~596
DOI : 10.5762/KAIS.2016.17.1.591
Numerical analyses were performed on the heat flow characteristics of a heat transfer plate with six different shapes (basic, rectangle, triangle, wave type) to reduce the level of white smoke at a stack. In this study, to examine the heat transfer performance (heat transfer capacity, pressure drop, turbulence kinetic energy, heat transfer coefficient) on the heat transfer plates, simulations were conducted using the commercial computational fluid dynamics software, ANSYS CFX Ver.14 under uniform flow conditions. The thermal flow phenomenon in a channel with six heat transfer plates could be predicted adequately under uniform flow conditions. The heat transfer capacity, pressure drop, turbulence kinetic energy, and heat transfer coefficient were affected by the flow rate, aspect ratio and plate shape. These results provide guidelines to design an effective heat exchanger with the wave type to reduce white smoke.
Implementation of Aerial Application System for Application Uniformity
Jee, Sun-Ho ; Jeon, Bu-Il ; Cho, Hyun-Chan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 597~604
DOI : 10.5762/KAIS.2016.17.1.597
The aim of this study was to prevent the decrease in crop output by disease and insect pests and excessive spraying of agricultural pesticides by application uniformity. A 3m height and 15km/h speed is difficult to maintain with an unmanned helicopter for aerial application, which has been affected by the controlling habits and methods or environmental factors, such as changes in the wind. Therefore, in this study, an aerial application system was design to be attached to an unmanned helicopter, which can allow a controlled application width and spray rate automatically and verified experimentally using Rmax of MS-AVIATION. The size of agricultural land was 50 m2 and nine water sensitive cards were arranged at 1.25m intervals in 5 rows with each row having a 10m interval from the position of 5m. The unmanned helicopter was flying at speeds ranging from 7.2km/h to 17.6km/h and heights ranging from 2.32m to 3.47m. The proposed aerial application system allowed application uniformity by making a valid spraying area of 7.5 m2 with 46423 particles distributed on average.
A Study on the Participation of LINC(Leaders in INdustry-university Cooperation) at Korean Firm's Employees Applying the Theory of Planned Behavior
Yang, Jong-Gon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 605~614
DOI : 10.5762/KAIS.2016.17.1.605
Many Korean colleges funded by the Korean government have actively implemented LINC (Leaders INdustry-university Cooperation) programs to facilitate practical training since 2012. The LINC programs have two major different categories, a technologically and innovative focused program and a field-centered program. A number of studies have applied the TPB (Theory of Planned Behavior) model proposed by Fishbein and Azjen successfully to predict the behavioral intention in many areas, such as marketing, environmental purchasing, and technology, etc. On the other hand, few studies have applied the TPB within industry-university cooperation settings. The purpose of this study was to empirically test the applicability of the TPB model in predicting the employees' participation in LINC programs. To investigate the study's purpose, a closed-ended questionnaire, composed of a total of 32 questions based on previous studies, was developed, and the data from 115 out of 132 employees in the participating companies of LINC were utilized. Specific analysis of the study showed that the attitudes, subjective norm, and perceived behavioral control were significant predictors of the LINC intention. In addition, the LINC intention was a significant predictor of the participation in LINC.
Centrality Analysis of Industry Sector for National Flagship Industry Selection
Kim, Sung-Rok ; Lee, Jong-Sang ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 615~621
DOI : 10.5762/KAIS.2016.17.1.615
The selection of a flagship industry is based on whether the industry's developmental impact is great and whether the industry can be the center of the national economy. Here, a ripple effect may be derived by analyzing the forward and backward linkage effects, but in the case of industries that are the centerpieces of the national economy, each researcher reported different results. Consequently, they could not agree on their flagship industry despite belonging to the same time. This study presents a prestige centrality of network analysis as a way of analyzing an industry, which was the center of the national economy, and performed empirical analysis utilizing the 2013 I-O Table. The analysis showed that the industries classified as those with high centrality include the energy industry, which is essential for economic development, can create a synergy effect with other industries, such as the transportation industry, industries with a high level of export and employment, such as electronics and chemicals, and industries for domestic demand, such as wholesale and retail, food services and accommodation.
A Study using Structural Equations on how the Role Stress of Administrative Workers in General Hospitals Affects Burnout, Job Satisfaction, and Organizational Commitment Analysis
Lee, Jeong-Wook ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 622~628
DOI : 10.5762/KAIS.2016.17.1.622
The aim of this study was to clarify how the role stress of administrative workers in medical institutions affects burnout, job satisfaction, and organizational commitment. The study conducted surveys on administrative workers at ten general hospitals with more than 200 beds for one month between July 13 and August 18, 2015. The surveys then underwent factor analysis, average variation extraction, a suitability index of the research model, and a path-coefficient estimation analysis of the research model using AMOS 18.0. The main results revealed a positive (+) effect according to the role conflict and role excess on burnout, and a negative (-) effect of burnout on job satisfaction, while they displayed no significant relationship with organizational commitment. These results suggest that clear guidelines and unity in instructions are needed to reduce the role of stress in cooperative tasks between departments and that optimizing the roles of organization members by accurately measuring and weighing tasks can increase the attachment to the organization and ultimately improve the individual job performance.
A Study on Halitosis by Oral Care Behavior and the Oral Environment
Jung, Su-Jin ; Lee, Mi-Ra ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 629~637
DOI : 10.5762/KAIS.2016.17.1.629
This study examined the tongue coating index and halitosis to determine the association with the oral care behavior and variation in halitosis according to the tongue coating index, dental calculus, and the oral environment before and after scaling among 130 participants in scaling practices of the Department of Dental Hygiene at K University in Daejeon. The subjects were asked to participate in a survey, in an oral examination for the tongue coating index, dental plaque, and dental calculus status, and in halitosis measurement. The tongue coating most significantly affected halitosis and the tongue coating index was strongly correlated with smoking and tongue washing. More frequent toothbrushing, a lower level of halitosis; and nonsurgical treatment of scaling were effective in reducing halitosis; age was associated with the tongue coating index. Therefore, it will be necessary to perform good oral care and reduce the amount of dental plaque and tongue coating and undergo regular scaling with the objective of improving oral health and reducing halitosis.
A Study on the Development and Effectiveness of Land Use Planning Methods for Carbon Reduction of Transportation : A Case Study of Asan-Tangjeong District
Lee, Woo-Min ; Park, Hyo-Sook ; Cheon, Choon-Keun ; Lee, Kyung-Hwan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 638~645
DOI : 10.5762/KAIS.2016.17.1.638
The purpose of this study was to develop land use planning methods for carbon reduction of transportation and verify the effectiveness. Therefore, this study derived carbon reduction design elements, such as high-density suburb, mixed-use development, pedestrian network and community corridor, which can be applied in the land-use planning stage by examining previous research. The carbon reduction design elements utilized the actual site during the research process. The carbon reductions were estimated using VISUM. Consequently, when carbon reduction design is applied to the site, the carbon emissions declined in the year. As a result of estimating the carbon reduction, approximately 450.7tCO2/yr was reduced.
A Study on Microbiological Hazards in Sterilization Processing of Pteridium aquilinum and Platycodon grandiflorum
Choi, Seon-Hyo ; Kwon, Sang-Chul ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 646~653
DOI : 10.5762/KAIS.2016.17.1.646
This study performed a microbiological hazard analysis, which is required for the application of HACCP (Hazard Analysis Critical Control Point) system to Pteridium aquilinum and Platycodon grandiflorum. The manufacturing process was made by referring to the typical manufacturing process. Based on microbiological hazard analysis, grandiflorum root contained
of bacteria, which has the largest amount of bacteria among the agricultural materials. On the other hand, microbiological hazard analysis of the raw materials and after the disinfecting process of confectionery showed a safe result. A microorganism test of the manufacturing environment and workers suggests that the microbiological hazard should be reduced through systematic cleaning, disinfection and accompanied by personal hygiene based on hygiene education for workers.
Study on the effect of the physical environment of the Gangwon region art museum on the level of satisfaction of the visit
Kim, Do-Yeon ; Lee, Kyeong-Ryul ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 654~663
DOI : 10.5762/KAIS.2016.17.1.654
Local art museums are being operated as non-profit organizations for the advancement of the collection, preservation, research, exhibition and education on art-related materials. The art museum is based on the physical environment of the means created by the human will. This study examined the visit satisfaction of the physical environment of the Gangwon Regional art museum. For the measurement, the Art Museum physical environment, kimhonghee (2012), was used as the elements, and Parasurama based on the SERVQUAL model was analyzed. The SPSS 18.0K statistics program was used to analyze the results, and the analysis of the elements of the physical environment of the art museums resulted in the surrounding factors, viewing factors, human factors, and facility factors. Regarding the level of satisfaction of the visitors, there was a difference in the level of satisfaction of the elements of the physical environment for each of the factors according to the gender, and it was confirmed that they generally have a positive (+) effect. The Gangwon Regional Art Museum is building a better physical environment to look forward and continue to communicate with the visitors.
Nurses' Perception of Flexible Working and Its Operational Guideline
Kim, Miyoung ; Kim, Eunjung ; Choi, Sujin ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 664~675
DOI : 10.5762/KAIS.2016.17.1.664
The purpose of the study was to explore the nurses' perception of flexible working and present an operational guideline for implementation. The data were collected from a survey of 532 nurses conducted from 10 February to 24 February, 2015, using simple random sampling. SPSS 21.0 was used to analyze the data. This study found that the demanding for shorter hour shifts was highest (
) and 242 participants (46.2%) intended to apply the shift, followed by a fixed night shift, fixed weekend shift, and 12 hour shift. The common reasons identified were the poor environment of shift work and the challenges of child care. The increased time for personal development, relaxation activity to improve the quality of life and child care was highlighted and work-life balance was noted as a positive impact of flexible working. The negative impacts of flexible working were being likely to become temporary workers. These results can help establish uniform working conditions of nurses in the future by providing a standardized operational guideline as a precondition for reasonable compensation and working environment according to a flexible working pattern.
Factors influencing the attitude toward death in college nursing student
Kim, Jong Gun ; Oh, Su Min ; Cheon, Eui Young ; Yoo, Jang Hak ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 676~683
DOI : 10.5762/KAIS.2016.17.1.676
This study examined the relationships between self-esteem, and the awareness of biomedical ethics and the quality of life and death attitude, as well as the factors influencing the death attitude among 130 nursing students in college. The data were analyzed using an independent t-test, one-way ANOVA, Pearson correlation coefficients, and multiple regression with the SPSS Win 14.0 Program. Significant positive correlations were observed between the self-esteem and death attitude, between the awareness of biomedical ethics and the death attitude. The predictors for the death attitude were self-esteem (
) and awareness of biomedical ethics (
). The model explained 21.2% (F=10.4, p<.001) of the variance. The findings indicated that more study will be needed to explore the factors influencing the death attitude and to develop education programs for reinforcing a positive death attitude among college nursing students.
2D/3D Visual Optical Inspection System for Quad Chip
Han, Chang Ho ; Lee, Sangjoon ; Park, Chul-Geon ; Lee, Ji Yeon ; Ryu, Young-Kee ; Ko, Kuk Won ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 684~692
DOI : 10.5762/KAIS.2016.17.1.684
In the manufacturing process of the LQFP/TQFP (Low-profile Quad Flat Package/Thin Quad Flat Package), the requirement of a 3 dimensional inspection is increasing rapidly and a 3D inspection of the shape of a chip has become an important report of quality control. This study developed a 3 dimensional measurement system based on PMP (Phase Measuring Profilometry) for an inspection of the LQFP/TQFP chip and image processing algorithms. The defects of the LQFP/TQFP chip were classified according to the dimensions. The 2 dimensional optical system was designed by the dorm illumination to achieve constant light distribution, In the 3 dimensional optical system, PZT was used for moving 90 degree in phase. The problem of 2 ambiguity was solved from the measured moir? pattern using the ambiguity elimination algorithm that finds the point of ambiguity and refines the phase value. The proposed 3D measurement system was evaluated experimentally.
Simulation Implementation of Fossil Power Plant Condensate Pumps' Rotation Operation Logic Using MATLAB/Simulink
Yoon, Chang-Sun ; Hong, Yeon-Chan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 693~699
DOI : 10.5762/KAIS.2016.17.1.693
The simulators for pump operation developed by domestic or overseas research have been developed for dynamic analysis or operator training purposes. However, previous developed simulators focused on the operators so they are unsuitable for logic designers or commissioning engineers who need to change the operation conditions or logics arbitrarily. In addition, the simulator for two or more condensate pumps' operation, which can be used easily by plant designers or operators, has not been developed. Accordingly, this paper suggests a simulation method that can be used easily for plant designers or operators using MATLAB Simulink. This suggestion helps users who can use MATLAB to implement ANSI/ISA S5.2, which is applied mainly for DCS (Distributed Control System). In addition, to implement the logics specified in the CODE, Sub-Systems were created for the block and evaluated to determine if they can be used in the simulator. In the working level stage using the suggested method, all error possibilities that might occur during the three pumps' rotation operation could be verified with the suggested simulator during the design stage or before operation.
A Study on the Information Search Action for Skin Care of Women in Their Twenties -on the Information Source-
Kim, Do Hyeon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 700~709
DOI : 10.5762/KAIS.2016.17.1.700
This study examined the importance of the skin care source on the consumer's general characteristics (lifestyle, residential district and income). The questionnaire survey results showed that women in their twenties choose dermatologic clinics as the best source for skin care. The three-way ANOVA using three variables (lifestyle, residential district and income) showed notable differences between the dermatologic clinic, newspaper?magazine, family?friends, and internet sources. Some suggestions for a marketing strategy were made. For example, newspaper?magazine targeting high income consumers is a good means for dermatologic clinics in Seoul and the Internet is better than other sources for other industries in Daejon.
A Dynamic Mobile Service Architecture for Activating O2O Business
Kim, Chul-Jin ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 710~716
DOI : 10.5762/KAIS.2016.17.1.710
Business is changing to Omni channel services for connecting customer and commerce enterprise anytime and anywhere continuously through the growth of IoT technology. This paper proposes a Mobile Service Architecture, which can provide an Omni channel, for activating O2O(Online to Offline) business to induce customers to visit offline stores through online services. A proposed Mobile Service Architecture proposes a Dynamic Architecture that can provide the specialized service using a Customization service when the service is provided to customers. The proposed Dynamic Mobile Service Architecture consists of a beacon sensor and customization framework. In the case study, the suitability of the Dynamic Mobile Service Architecture was verified by providing a dynamic coupon and advertisement service.
Change Area Detection using Color and Edge Gradient Covariance Features
Kim, Dong-Keun ; Hwang, Chi-Jung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 717~724
DOI : 10.5762/KAIS.2016.17.1.717
This paper proposes a change detection method based on the covariance matrices of color and edge gradient in a color video. The YCbCr color format was used instead of RGB. The color covariance matrix was calculated from the CbCr-channels and the edge gradient covariance matrix was calculated from the Y-channels. The covariance matrices were effectively calculated at each pixel by calculating the sum, squared sum, and sum of two values' multiplication of a rectangle area using the integral images from a background image. The background image was updated by a running the average between the background image and a current frame. The change areas in a current frame image against the background were detected using the Mahalanobis distance, which is a measure of the statistical distance using covariance matrices. The experimental results of an expressway color video showed that the proposed approach can effectively detect change regions for color and edge gradients against the background.
On a Maturity Model for the Institutionalization of Integrated SE&PM Process at Organization Level
Choi, Young-Gil ; Lee, Jae-Chon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 725~732
DOI : 10.5762/KAIS.2016.17.1.725
To develop large-scale complex systems, many organizations have attempted to improve the processes specified in systems engineering (SE) and project management (PM) by adopting CMMI (Capability Maturity Model Integration). On the other hand, most domestic organizations that already acquired CMMI level 3 have focused on SE&PM practices while providing less investment in building up the environment for institutionalizing those processes. In such organizations, the process maturity without advancing to institutionalization can be neither enhanced nor maintained. To resolve the problem, the following remedies can be suggested. A standard process should first be defined to meet the business mission of the organization and to carry out the process successfully, the people should be properly trained and the appropriate tools be provided. In this study, a maturity model to accomplish institutionalization was examined based on the aforementioned P-P-T (Process-People-Tool) concept. The model proposed would be useful in developing strategies and plans for process institutionalization when the organizations are in the preparation stages for a CMMI certificate or have already acquired one.
A mechanism for Converting BPMN model into Feature model based on syntax
Song, Chee-Yang ; Kim, Chul-Jin ;
Journal of the Korea Academia-Industrial cooperation Society, volume 17, issue 1, 2016, Pages 733~744
DOI : 10.5762/KAIS.2016.17.1.733
The legacy methods for converting a business model to a feature model make it difficult to support an automatic transformation due to a dependence on a domain analyzers' intuitions, which hinders the feature oriented development for the integration of feature modeling in business modeling. This paper proposes a method for converting a BPMN business model into a feature model based on syntax. To allow the conversion between the heterogeneous models from BPMN to the FM(Feature Model), it defines the grouping mechanism based activities' syntax, and then makes translation rules and a method based on the element (represent business function) and structure (relationships and process among elements), which are common constructs of their models. This method was applied to an online shopping mall system as a case study. With this mechanism, it will help develop a mechanical or automated structure transformation from the BPMN model to the FM.