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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korea Academia-Industrial cooperation Society
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Journal DOI :
The Korea Academia-Industrial cooperation Society
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Volume & Issues
Volume 15, Issue 12 - Dec 2014
Volume 15, Issue 11 - Nov 2014
Volume 15, Issue 10 - Oct 2014
Volume 15, Issue 9 - Sep 2014
Volume 15, Issue 8 - Aug 2014
Volume 15, Issue 7 - Jul 2014
Volume 15, Issue 6 - Jun 2014
Volume 15, Issue 5 - May 2014
Volume 15, Issue 4 - Apr 2014
Volume 15, Issue 3 - Mar 2014
Volume 15, Issue 2 - Feb 2014
Volume 15, Issue 1 - Jan 2014
Selecting the target year
Estimation of Indent Fracture due to the Moving Process of a Pin on PCB Plate
Kim, Young-Choon ; Kim, Choon-Sik ; Lee, Hee-Sung ; Cho, Jae-Ung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 6967~6972
DOI : 10.5762/KAIS.2014.15.12.6967
Assembly using a bolt and nut, and rivet or pin have been used widely for forming mechanical joints. The indent method is an easier process than other manufacturing techniques and the toughness of the material is excellent. On the other hand, there are many cases in which the cracks occur on the manufacturing process as the indent method. Therefore, two kinds of models, in which a pin goes into and out PCB plate in this study were developed using the CATIA program and finite element methods were performed using the ANSYS program. When a pin was passed through a PCB plate in cases 1 and 2, the maximum loads applied to the PCB plate were 79.708N and 90.277N, respectively. When the PCB plate came out of the pin in cases 1 and 2, the maximum loads were 63.783N and 33.75N, respectively. The damage prevention and durability can be improved by applying the study results to the design of real indentation.
Study of the corrosion effect of CO
stream with SO
on a phosphate coated steel tube
Cho, Meang-Ik ; Kang, Seong-Gil ; Huh, Cheol ; Baek, Jong-Hwa ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 6973~6979
DOI : 10.5762/KAIS.2014.15.12.6973
To mitigate global warming and climate change, many countries are investing massively on the development of CCS technology, which is assumed to be the key technology to reduce
emissions. CCS technology is comprised of the capture, transport, and storage processes. During the capture process, impurities other than
are inevitably flowed into the
stream. In the present study, corrosion characteristics of a phosphate coated tube for
transportation was investigated with a
stream composed of
. The test specimen was a phosphate coated steel tube, which was filled with
stream with the impurities mentioned above. SEM-EDS analysis is conducted to investigate the corrosion behavior. The results showed that although the H2O concentration did not exceed the solubility limit, corrosion occurred in the specimen, which has an inflow of
. This suggests that the
concentration should be strictly controlled. These results suggest that the
concentration should be controlled below 175ppm and 65ppm, respectively.
Deposition of Micropattern using The Laser Direct Writing Method with a polymer coating layer
Lee, Bong-Gu ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 6980~6985
DOI : 10.5762/KAIS.2014.15.12.6980
A micro-conductive pattern was fabricated on an insulating substrate (
) surface using a laser direct writing method. In the LIFT process, when the laser beam irradiates a thin metal film, the photon energy is absorbed by the film and converted to thermal energy, and the thermal decomposition reaction produced by the resulting heat conduction forms a deposit on the substrate. The resistivity of the micro-electrodes deposited through LIFT process with and without polymer coating was measured. The results showed that the electric conductivity of the micro-pattern and micro-structure can be increased approximatly two times when the deposited micropattern is fabricated through a LIFT process with a polymer coating, compared to the case without a polymer coating.
Sensor-Based Path Planning for Planar Two-identical-Link Robots by Generalized Voronoi Graph
Shao, Ming-Lei ; Shin, Kyoo-Sik ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 6986~6992
DOI : 10.5762/KAIS.2014.15.12.6986
The generalized Voronoi graph (GVG) is a topological map of a constrained environment. This is defined in terms of workspace distance measurements using only sensor-provided information, with a robot having a maximum distance from obstacles, and is the optimum for exploration and obstacle avoidance. This is the safest path for the robot, and is very significant when studying the GVG edges of highly articulated robots. In previous work, the point-GVG edge and Rod-GVG were built with point robot and rod robot using sensor-based control. An attempt was made to use a higher degree of freedom robot to build GVG edges. This paper presents GVG-based a new local roadmap for the two-link robot in the constrained two-dimensional environment. This new local roadmap is called the two-identical-link generalized Voronoi graph (L2-GVG). This is used to explore an unknown planar workspace and build a local roadmap in an unknown configuration space
for a planar two-identical-link robot. The two-identical-link GVG also can be constructed using only sensor-provided information. These results show the more complex properties of two-link-GVG, which are very different from point-GVG and rod-GVG. Furthermore, this approach draws on the experience of other highly articulated robots.
Experimental study of the sound quality performance and improvement of magnetic fluid speaker
Lee, Moo-Yeon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 6993~6997
DOI : 10.5762/KAIS.2014.15.12.6993
The aim of this study was to experimentally investigate the sound quality characteristics, such as sound deflection, sound pressure level and frequency characteristics of a magnetic type speaker in an anechoic chamber to overcome the sound quality and voice-coil temperature problems. To accomplish this, the sound quality performance of the magnetic type speaker was tested according to the magnetic fluid amount and magnetic field intensity. The sound deflection, sound pressure level, and frequency characteristics were measured using the Smarrt program. As a result, at a magnetic fluid amount of 2.4 ml, the sound deflection and the sound pressure level of the magnetic type speaker were enhanced by comparing with those of the general type speaker. The frequency characteristics and the sound pressure level of the magnetic type speaker were enhanced greatly with increasing magnetic field intensity from 8.06 mT to 9.10 mT. In addition, the sound deflection of the magnetic type speaker was 0.01% lower than that of the general type speaker.
Effect of the Facility Satisfaction, Anxiety, Self-esteem, Stress, and Depression of the Elderly in Care Facilities on Their Life Satisfaction
Sa, Young-Haw ; Cho, Sung-Je ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 6998~7004
DOI : 10.5762/KAIS.2014.15.12.6998
This study examined how the facility satisfaction, anxiety, self-esteem, stress, and depression of the elderly in care facilities affect their life satisfaction. The objects of the study were 271 elderly in 8 care facilities located in Seoul and associated areas. The results of a questionnaire, which was carried out from the 10th March to 25th August 2013, were analyzed. For data analysis, a t-test, one-way variance analysis, correlation analysis, and proof analysis on the SPSSWIN 18.0 program was conducted at the significance level of 5%. The analysis revealed the following. First, there were differences in the life satisfaction depending on age, sex, education level, and marital status. Second, life satisfaction was related to service satisfaction, medical service satisfaction, facility environment satisfaction, and self-esteem. Third, life satisfaction was higher if self-esteem, service satisfaction and facility environment satisfaction were higher, and if the family relationship stress was lower. Overall, self-esteem, service satisfaction, and facility environment satisfaction of the admitted elderly were positive influential factors of life satisfaction.
The status of skin condition and using of cosmetic for 50's women
Lee, Mi-Na ; Jang, Mi-Hye ; Lee, In-Hee ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7005~7011
DOI : 10.5762/KAIS.2014.15.12.7005
In this study, due to aging, we propose the possible solutions for a variety of skin problems, skin problems of middle-aged women appear. The object of the present invention is to provide the basic data required for use in cosmetic skin care methods and then to find the direction in accordance with the use situation of the subjective skin cosmetics. For this, total 235 the age of 50's women living in Gyeonggi. Found that the correlation between the method by the subjective skin and cosmetics(***p<.001). Found that the correlation between the method of administration and the skin cosmetic and subjective(***p<.001). These results suggest that training and development can be made for a great skin care program to find the exact status of individuals based on a variety of skin problems from the facial skin of middle-aged women.
Study of the Process Model through a Case Study of the EU FP 7th International Technological Cooperation - Focusing on the Sub Processes in the Evaluation Process -
Kim, Jin Suk ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7012~7017
DOI : 10.5762/KAIS.2014.15.12.7012
The process of international technical cooperation is quite complex. If the complexity is reduced and mirrored as a simple model, it could be of great assistance to government agencies and staff to support international technical cooperation. The purpose of this paper was to develop the underlying process model in international technical cooperation in the evaluation phase. The paper provides in the second chapter the theoretical background for developing a process model. In the third chapter, the features and the practical model of the evaluation phase are presented. Chapter four presents a case with substantial empirical analysis of the development model. EU FP7th as a case study was examined in the hindsight of international technical cooperation in the evaluation process. The concluding, chapter five, presents the limitations and future research directions. The results show that a new phase can be analyzed on the level of the evaluation step. The limitation of this study was that the empirical study consists of a single case study only. In the future, it will be necessary to study the sub stages of other steps in international technological cooperation.
Empirical Study of the Long-Term Memory Effect of the KOSPI200 Earning rate volatility
Choi, Sang-Kyu ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7018~7024
DOI : 10.5762/KAIS.2014.15.12.7018
This study examined the squared returns and absolute returns of KOSPI 200 with GPH (Geweke and Porter-Hudak, 1983) estimators. GPH was estimated by the long-term memory preserving time series parameter d in linear regression. This called the GPH estimator, which depends on a bandwidth m. m was decided by confirming the stable section of the point estimate by validating the track of the GPH estimator according to the value of m. The result suggests that by satisfying 0< d <0.5, the squared returns and absolute returns of KOPI 200 retains long-term memory.
Study of the Effects of Supplier Monitoring on Shop floor Productivity
Cho, BooYun ; Kang, Gi-Choon ; Hyun, MinCheol ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7025~7039
DOI : 10.5762/KAIS.2014.15.12.7025
Focal companies (hereafter called buyers) adopt outsourcing practices from a supply chain management strategy to be competitive. Buyers face the bridge transfer after outsourcing contracts, and the monitoring practices would be the only control mechanism left to prevent losing control over the suppliers. This study suggests the set of monitoring practices (i.e., capability, activity and outcome monitoring) as the independent variables to enhance the buyer-supplier collaboration and supplier's performance. In addition the buyer's efforts of monitoring are assumed to influence the buyer's shop floor productivity mediated by the supplier's performance and buyer-supplier collaboration. The results showed that the monitoring practices are meaningful antecedents to the supplier's performance and buyer-supplier collaboration, which fully mediates between the monitoring practices and buyer's shop floor productivity. The mediating role of the buyer-supplier collaboration between activity monitoring and shop floor productive has been rejected, because the negative effect of activity monitoring on buyer-supplier collaboration conflicts with the positive impact of buyer-supplier collaboration on shop floor productive. The theoretical contribution and managerial implications with limitations have been discussed.
Teaching self-efficacy and self-service resilient impact on career maturity and career stress
Lee, Jung-Hyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7040~7050
DOI : 10.5762/KAIS.2014.15.12.7040
This study examined whether career decision-making self-efficacy, self-resilience, and career maturity in university students affects the job seeking stress. In particular, this study focused on whether career maturity has a mediating effect among career decision-making self-efficacy, self-resilience and job seeking stress. University students have approximately three points in career maturity - the mid-point of a five-point scale, and career decision-making self-efficacy was proved as a variable affecting the career maturity. In addition, self-resilience has no significant effect on career maturity, and a study of the relationship between the career decision-making self-efficacy and job seeking stress revealed a low correlation. In career decision-making self-efficacy affecting job seeking stress, the career decision-making self-efficacy itself has an effect on the job seeking stress but job seeking stress can improve the career maturity. This study, which is related to career maturity, is different from previous studies dealing with only a single dimension for the direct influence.
Relationship among Flow and Satisfaction of College Physical Education Class and Psychological Well-Being
Han, Gun-Soo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7051~7059
DOI : 10.5762/KAIS.2014.15.12.7051
This study examined the relationship among flow and satisfaction of college physical education class and psychological well-being. An analysis of 264 college students from 3 universities in D and G city revealed the following. First, flow of college physical education class had a positive influence on the satisfaction of college physical education class. Second, the flow of college physical education class did not affect the psychological well-being. Third, the flow of the college physical education class had a positive but indirect influence on the psychological well-being mediated by the satisfaction of the college physical education class. Fourth, there was a moderation effect of the leisure sport participation level on the relationship among flow and satisfaction of the college physical education class and psychological well-being.
Study of the Service Improvement and Revitalization Measures of Student-Centered University Library through the Book Lending Data Analysis of Freshmen
Shim, Jaeruen ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7060~7067
DOI : 10.5762/KAIS.2014.15.12.7060
The reading activity of university students is the key element for the cultivation of creative human resources, and each university develops and performs the various cultural education and library program. Actually, the university libraries check the service periodically through library satisfaction surveys and the library user's actual condition survey to improve it, but the amount of reading, number of books lent and the rate of borrowers are still under expectation. Therefore, in this research, an in-depth analysis of lending books data for freshmen, as the service improvement and revitalization measures of university libraries for students, suggested the following: (1) the early education for the library users, (2) the opening of the students-participating library collections, (3) the use of the data using a library for the consulting with students (4) the establishment of the library depositary for education support, and (5) the introduction of the library CRM for individual student. Through this result, it would be substantially helpful for each university library (including two-year college), in which the number of lending books and the rate of borrowers are below expectations.
Effects of Career Maturity of undergraduate students majoring in Cosmetology on Career decision-making styles
Choi, Young-Jae ; Lee, In-Hee ; Kim, Yun-Jung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7068~7076
DOI : 10.5762/KAIS.2014.15.12.7068
This study examined differences in beauty majors' career maturity and career decision-making depending on the grade and analyzed the relationship between the career maturity with the career decision-making to present basic data for guidelines that would help any relevant field with their career consultations and education targeting those students majoring in beauty at college. A total of 336 beauty majors in the metropolitan area were selected as the research subjects. The study confirmed that the higher the grade, the greater the career maturity. The students who had a higher level of career maturity tended to be included in the reasonable career decision-making category while those students with a lower level of career maturity were determined to conduct dependent decision-making. In terms of the career decision, the students in the higher grades were reasonable enough to make decisions logically because they collect various information through systematic stages but when it comes to the students in the lower grades, they were divided into the intuitive type that would reach a decision through emotional self-recognition depending on how one feels at this moment or what situation one is going through as well as the dependent type that would let people or environments influence one's decision-making. The grades of the students tended to cause differences in the career maturity and the career decision-making, and the significance between the two variables was proven. If the relevant fields carry out systematic grade-focused programs and career guidance not only to improve the career maturity of even the lower graders but also to encourage the students to make reasonable decisions, such programs and career guidance will be a help when the students try to determine a career.
Study of the corporate image and product attitude in view of consumer perception of corporate social responsibility ; - focus on the moderating effect of self-image accordance
Jin, Yong-Sam ; Lee, Jae Kwang ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7077~7092
DOI : 10.5762/KAIS.2014.15.12.7077
This study examined that how the corporate social responsibilities of a social enterprise affect their image and product attitude. In particular, separating into a real self-image and social self-image, the moderate effects of the accordance of self-image were tested. The results showed that each corporate social responsibility of a social enterprise affects their image except for social image. In addition, an accordance of the real self-image moderates the effect of the corporate activity image and social contribution activity image on the product attitude.
Study of the Factors Related to the Labor Market Transition of Job Injured Workers
Bae, Hwa-Sook ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7093~7100
DOI : 10.5762/KAIS.2014.15.12.7093
This study analyzed the factors related to labor market transition of job injured workers. The Workers' Compensation Insurance Panel data ver.1, which that was surveyed by the Korean Workers' Compensation & Welfare Service in 2013, was used. Four key findings were made: first, the economically inactive populations are 7.2% and unemployed is 22.3% of occupational accident workers who finished the treatment period; second, 31.5% of laborers who returned to a new workplace went into another type of occupation; third, the results showed that socio-demographic factors, such as gender, age and education years, injury-related factors, such as the treatment period and work limitation, and workplace factors, such as company size and employment status, were associated with the return to work; and fourth, a relatively higher proportion of people who has received occupational training could not return to work and the disability grade was not associated with the return to work. These results suggest that policy makers need to understand the characteristics of labor market transition of job injured workers and develop efficient intervention programs based on the transitional labor market.
Relationship among Self-Control, Physical Activity, Internet Addiction, Cyber Ethnics, and Cyber Delinquency
Park, Mi-Hyang ; Park, Jae-Ahm ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7101~7109
DOI : 10.5762/KAIS.2014.15.12.7101
This study examined the relationship among self-control, physical activity, Internet addiction, cyber ethnics, and cyber delinquency. The data from a total of 388 adolescent girls was analyzed by structural equation modeling using the AMOS 20.0 statistics program. First, the level of physical activity affects Internet addiction mediated by self-control. Second, self-control affects Internet addiction and cyber ethnics directly and has an influence on the cyber delinquency mediated by Internet addiction. Third, Internet addiction has direct effects both cyber delinquency and cyber ethnics.
A Case Study of Effects of the Stress of a Judo Referee and Job Satisfaction
Kim, Seung Ryoung ; Shin, Seok Min ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7110~7117
DOI : 10.5762/KAIS.2014.15.12.7110
This study examined 149 referees participating in the field of Judo judgment in 2013. 98 referees of the 1st level (65.8%), 18 referees of the 2nd level (12.1%) and 33 international referees (22.1%) were used as the final valid sample. To evaluate the basic background of referees, 7 categories, such as gender, age, Judo, and a referee career, a coaching career, the level of referee, and occupation were examined. In addition, 25 questions in 6 categories, such as misjudgment 4 questions, special consideration 4 questions, claims for judgment 9 questions, physical fitness burden 3 questions, disloyalty at home 3 questions, a lack of conditions 2 questions were tested for the stress of a judo referee. 20 questions in 4 categories, such as peer satisfaction 5 questions, salary satisfaction 5 questions, atmosphere satisfaction 6 questions, and working satisfaction 4 questions, were examined for job satisfaction as a referee in the field of Judo judgment. In particular, the effects of the factors causing stress for a referee and efforts to release the stress are explored. Based on the methods and data mentioned above, the results of this analysis were determined.
Performance of Business Incubator According to Operating System and Manager Characteristic
Park, Dong-Yoel ; Ha, Kyu-Soo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7118~7133
DOI : 10.5762/KAIS.2014.15.12.7118
To derive an efficient operating system for business incubators, this study examined the operating performance according to incubator operating system and incubator manager. The survey targets were tenants of business incubators and factor analysis. Regression analysis was performed according to the reliability analysis, correlation analysis, regression analysis and parameter using the 19 Ver program SPSS analysis. As a result, the business incubators and business incubators operating system were found to be an important factor and among these, the H / W and system S / W systems were identified as significantly influential factors. On the other hand, this hypothesis of the performance of the support system and characteristics of the incubator manager was rejected for the variable parameters, which always appear to influence the other characteristic factors of the manager. Operational performance can be divided into an incubator performance center and tenant's performance, and the performance of the tenants were analyzed by the significant effect on the managers characteristics.
Searching for Growth Engine: For the Firms Belonging to the Chaebol in the Korean Capital Markets
Kim, Hanjoon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7134~7147
DOI : 10.5762/KAIS.2014.15.12.7134
This study examined one of the contemporary issues that may be interesting to academics and practitioners regarding the driving force of the growth rate for the firms belonging to the chaebols in the Korean capital markets. With respect to the empirical results obtained from two hypothesis tests, the first hypothesis was to identify any financial determinants on the growth rate by applying both dynamic panel data and static panel data models. The debt ratios relevant to the book- and market-value showed their positive relationships with the DV of GROWTH1, along with other significant IDVs such as one-period lagged DV of GROWTH_1, SIZE1 and FOS with statistical significance. Second, by employing conditional quantile regression (CQR) analysis, the control variables, such as ROA, SMARKET, time dummy variable of F2010 and F2011, and the industry dummies of IND3 and IND10, provided evidence of their significant influences on DV of GROWTH1.
Study of Death Attitudes by General Characteristics and Death Perceptions of the Severely Diseased Persons in Hospice Facilities -Focus in O City, Gyeonggi-do
Kim, Moon-Dol ; Cho, Sung-Je ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7148~7159
DOI : 10.5762/KAIS.2014.15.12.7148
This study examined the relationship between the death perceptions and attitudes of the severely diseased persons in hospice facilities based on their general characteristics. The surveys were conducted from March 10 to July 31, 2013 on 149 patients at hospice facilities in
city, Gyeonggi-do. The data was analyzed by the SPSS WIN 18.0. First, positive death attitudes showed significant differences according to the patients' general characteristics (F=6.218, p<.001). Second, the patients' death attitudes by their death perceptions showed meaningful results (F=6.634, p<.001). Third, the death attitudes revealed a positive relation with hospice use (r=.496, p<.001). Overall, patients, who have positive death perceptions and attitudes, have high expectations for hospice use and these results support for welfare policies to encourage hospice use of severely diseased persons.
Effects of Nursing Student's Academic Failure Tolerance and Academic Self-efficacy on Academic Achievement
Chung, Su Kyoung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7160~7169
DOI : 10.5762/KAIS.2014.15.12.7160
This study examined the relationship of academic failure tolerance, academic self-efficacy and academic achievement of nursing students. The data was obtained from August 27 to September 17. The participants were 198 students in a university in D city. The data was analyzed using descriptive statistics, Pearson correlation coefficients and multiple regression. A positive correlation was observed between all the variables. The factor that significantly affected academic achievement was academic self-efficacy, which explained 7.5% of the variances. The subdomain of the academic failure tolerance affecting academic achievement was found to be the behavior, which explained 8.0% of variances. The subdomains of academic self-efficacy affecting the academic achievement was the self-regulatory efficacy. This factor explained 15.4% of the variances. This study suggests that it is necessary to enhance the academic failure tolerance and academic self-efficacy for the learning achievement and working performance of nursing students.
Effects of Emotional Labor, Job Satisfaction and Organizational Commitment on Turnover Intention in Nurses
Yang, Jong-Hyun ; Jeoung, Kyu-Ho ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7170~7178
DOI : 10.5762/KAIS.2014.15.12.7170
This study examined relations of emotional labor, job satisfaction, organizational commitment and turnover intention in nurses. The subjects were 320 nurses in 5 general hospitals. The data was collected using a structured questionnaire from August 1 to 20, 2013 and analyzed with descriptive statistics, t-test, ANOVA, Pearson's correlation, and Hierarchical multiple linear regression analysis. The mean scores of the emotional labor level, job satisfaction level, organizational commitment, and turnover intention was
, respectively. Positive correlations of the turnover intention with emotional labor were found. Negative correlations were observed among salary, job satisfaction, organizational commitment, and turnover intention. These results showed that nurses working at five general hospitals needed to minimize emotional labor to maintain a comparatively high level of job satisfaction, organizational commitment and decrease the turnover intention.
Actual Analysis of the Interrelationship between Evaluation Indicators of Communicable Disease Control and Prevention Activities and Communicable Disease Incidence Data
Kim, Min-Jun ; Hong, Jee-Young ; Lee, Moo-Sik ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7179~7186
DOI : 10.5762/KAIS.2014.15.12.7179
This study examined the interrelationship between the evaluation indicators of communicable disease control and prevention activities, and the communicable disease incidence data. This study analyzed the incidence data of communicable disease in local governments of south Korea and evaluated the data of communicable disease control and prevention activities by the Ministry of Health of the central government in South Korea during 2004-2005. Frequency analysis was carried out to understand the character of the participant, t-test to compare the mean value between the two groups and stepwise multiple regression analysis to understand the significance between the dependent and independent variables. In this study, the finance related to communicable diseases (group I diseases in both city and rural center), keep rate of periodic reports on notifiable communicable diseases based on the law for communicable disease control and prevention (group II in city), the level of education on personal hygiene (group II in rural center), level of education on AIDS prevention and the reporting rate of cases of tuberculosis (group III in city), and reporting rate of incident cases of tuberculosis (tuberculosis and Hansen disease in both rural and city) were significant indicators. The level of education on AIDS prevention and the reporting rate of the cases of tuberculosis (in city), and number of adverse reactions after immunization (in rural area), reporting rate of cases of tuberculosis (in total center) were significant indicators in total communicable disease and all types of public health centers. The authors verified core evaluation indicators as actual proof. This study provides useful data for a summative evaluation, standardization, and guidelines on communicable disease control and prevention activities of public health centers and local government.
Design of a Smart Phone Panoramic Photograph Support System Using Sensor and Camera Technology
Kim, Bong-Hyun ; Oh, Sang-Young ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7187~7192
DOI : 10.5762/KAIS.2014.15.12.7187
Recently, theservice field based on the location while expanding into a variety of business areas and have generated significant revenue. In particular, the map service provides a variety of information in conjunction with such public transport directions. Therefore, this study evaluated the map service, as one of the key technologies, StreetView and LoadView photographs of panoramic photograph-support service-modules that can be supported on smart phones. For this, purpose sensors were provided to allow smart phone users to easily publish panoramic photographs. The unnecessary parts could be removed from several photos and pictures using the design technology, and the naturalness of the connection could be maintained by applying the algorithm to handle a single photograph. Finally, a system to work with smartphone panoramic photographs was configured and designed to operate a smartphone application panoramic photograph for 6 months.
Effect of Career Commitment and Professionalism of Perioperative Nurses on the Organizational Commitment
Yoon, Kesook ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7193~7203
DOI : 10.5762/KAIS.2014.15.12.7193
This study examined the career commitment and professionalism of perioperative nurses and their impact on the organizational commitment. The subjects were 315 perioperative nurses who were attending the annual conference of the Korean Association of Perioperative Nurses. The data was analyzed by descriptive statistics, ANOVA, and stepwise multiple linear regression using the SPSS/PC 18.0 program. The average level of organizational commitment of the nurses was
, whereas the level of career commitment and professionalism were
, respectively. Both factors were found to be influencing factors on the organizational commitment. These variables explained 37.3% of the variance of organizational commitment, and the career commitment (
=0.395) was a more influential factor than the professionalism (
Study of the Health Recognition and Health Behavior Practice of Flight Attendants
Lee, Jung-Hyun ; Kim, Seol-Hee ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7204~7213
DOI : 10.5762/KAIS.2014.15.12.7204
This study examined the impact on work life on health recognition and health behavior practices. The data was collected from 314 flight attendants from June to July 2014 in A airline. Questionnaires were used to measure the levels of health recognition, health behavior practice, Stress index, external image, and the impact on the work life. The data was analyzed using descriptive statistics, T-test, ANOVA, Pearson's correlation, structural equating model using the SPSS AMOS 18.0 program. The research showed that health care influences the external image and work life, and the health behavior practice influences the stress management. A survey of the various influencing factors of work life will be needed in terms of human resource management to provide quality service to customers, and health care programs for flight attendants in workplace will be needed.
Effects of the Aroma Inhalation Method with a Roll-on on Life Stress, Salivary Cortisol and Fatigue in Nursing Student
Kim, In-Sook ; Kang, Seung-Ju ; Kim, Ja-Ok ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7214~7223
DOI : 10.5762/KAIS.2014.15.12.7214
Purpose: This study examined the effects of aroma inhalation method with roll-on on life stress, salivary cortisol and fatigue in nursing student preparing national examination for nursing licensure. Methods: The study was a nonequivalent control group pre-post test design. The participants were 46 nursing students of which 21 were assigned to the experimental group and 25 to the control group. Data was collected from October 10 to November 21, 2011 and analyzed using the SPSS Win 18.0 version program. The intervention was conducted 3 times a day for 6 weeks. Results: Significant differences in reported life stress experience frequency and fatigue between the two groups. On the other hand, the issue of salivary cortisol and life stress importance rate was not significant. Conclusion: Aroma inhalation method with roll-on can be used as an effective intervention to decrease life stress experience frequency and fatigue of nursing students with national examination for nursing licensure.
Health-related Quality of Life and Its Related Factors in Urban Elderly Women
Na, Yoon Joo ; Choi, Yeon Hee ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7224~7230
DOI : 10.5762/KAIS.2014.15.12.7224
This study attempted to identify the health-related quality of life and its related factors in urban elderly women. This study used the data of the 2011 Community Health Survey. The subjects of this study were 704 elderly women. Based on the literature review, this study examined variables with health-related quality of life and construct integrated conceptual framework of the study. For data analysis, SPSS 18.0 and LISREL 8.8. were used to calculate the percentage, mean, standard deviation, Spearman correlation, and path analysis parameter. The total mean EQ-5D index score was
and the major problems were pain/discomfort (62.5%) and mobility (53.9%) and normal activity (38.9%). The model showed a goodness of fit to the empirical data. Age, income, health promotion behavior, social support, physical health and mental health had significant direct effects on EQ-5D and age, income, health promotion behavior and social support had indirect effects on EQ-5D. These variables explained 28% of the variance of EQ-5D. To improve the quality of life in urban elderly women, it is essential to have a comprehensive program for elderly women.
Effect of self-efficacy in dental hygiene students on the career maturity level
Jung, Eun-Kyung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7231~7238
DOI : 10.5762/KAIS.2014.15.12.7231
This study examined the effects of self-efficacy on career maturity in dental hygiene students, and whether there were differences in self-efficacy according to the existence or not regarding the certificate of qualifications, participating experience in vocational training competition and award one in the competition. The data was collected from a self-administrated questionnaire on dental hygiene students. The 435 students were selected for this study. The data was analyzed by descriptive analysis, Pearson Correlation, and multiple regression analysis. The results of this study were as follows. First, the task difficulty self-efficacy as a career decision, career independence, career certainty, and career preparation had a positive impact. Second, the self-regulation self-efficacy as a career independence, career confidence, career preparation, and career objectives had a positive impact. Third, the main career attitude and maturity factors affecting the efficacy of dental hygiene students was a career student independence, career preparation, and career certainty. The total explanatory power was 28%. As a result of this research, comprehensive implications were suggested to improve the career maturity and enhance the adjustment to college.
Effect of the application of low-frequency rTMS on cognitive function in chronic stroke patients
Lee, Dong-Woo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7239~7247
DOI : 10.5762/KAIS.2014.15.12.7239
This study repeated low-frequency transcranial magnetic stimulation (rTMS) to evaluate the effects on cognitive function in chronic stroke patients. Among the chronic stroke patients, 30 patients selected by MMSE-K and BCRS-K were divided randomly into 3 groups. Group I (n=10) had only sound applied, group II (n=10) were applied 1 Hz rTMS on the damaged side and group III (n=10) were applied to 1 Hz rTMS on the opposite side for total 2 weeks, 20 minutes per a day, five times per a week. To examine the change in cognitive function, CREAD-K scores were measured before, 1 week, 2 weeks, and then 3 months after the intervention. The CREAD-K scores were measured before and 1 week, 2 weeks and 3 months after the interventions. The immediate recall memory showed a significant difference after 2 weeks and 3 months in groups II and III (p<.05), The recognition memory showed a significant difference after 2 weeks and 3 months in group III (p<.05). The delayed recall memory showed significant differences after 3 months in group III than in group I (p<.05). Therefore, the application of low-frequency rTMS has a positive influence on the cognitive rehabilitation of chronic stroke patients.
Effects of a Smoking Cession Program Using Telephone Counselling and Text Messaging for Patients after Ischemic Heart Disease
Kim, Eun-Shim ; Choi, Hye-Ok ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7248~7258
DOI : 10.5762/KAIS.2014.15.12.7248
The study was conducted as a quasi-experimental study targeting 60 patients with ischemic heart disease to determine how the smoking cessation program that uses telephone counseling and text messaging (short message) affects smoking cessation self-efficacy, nicotine dependence, co levels, and smoking cessation rate of the first, second experimental group at varying times of arbitration and control group. An examination of the effects of this program revealed the control group to have a significant increase in smoking cessation self-efficacy, smoking cessation rate than the first and second group but a significant decrease in the nicotine dependence, co levels. In addition, although the control group showed a significant increase in smoking cessation self efficacy, smoking cessation rate and a significant decrease in co levels than other groups, there was no difference in nicotine dependence. Therefore, a smoking cessation program that uses telephone counseling and text messaging (short message) for patients with ischemic heart disease worked for the smoking cessation rate and appeared to be more effective, depending on the times of arbitration.
Effects of Backward Walking Training in the Gait ability and Foot Pressure of Hemiplegia Patients
Lee, Byung-Hoon ; Jeong, Jin-Gyu ; Kim, Chan-Kyu ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7259~7265
DOI : 10.5762/KAIS.2014.15.12.7259
This study examined the gait ability and foot pressure after backward walking training in hemiplegia patients after stroke to provide evidence for the application of backward walking to the rehabilitation of those patients. Twenty hemiplegia patients hospitalized at one rehabilitation hospital were enrolled in this study, which was conducted from 23 April to 18 May, 2012. The subjects were randomized into either the experimental group or control group. The control group received general physical therapy for 30 minutes and the experimental group received 20 minutes of physical therapy and 10 minutes of backwards walking training five times a week for four weeks. The gait ability and foot pressure of both feet were measured quantitatively and compared. The results showed the weight bearing (entire foot, anterior and posterior of foot) of the paralyzed foot during the stance phase showed a significant difference (p<.05). The difference in the foot pressure of right and left feet was more significant in the experimental group than that of the control group (p<.05). Therefore, this study confirmed that backward walking training in a rehabilitation program would be helpful for improving the gait ability of hemiplegia patients after stroke.
Associations of physical activity by intensity (moderate vs. vigorous) with depression and suicidal thoughts among middle school students in South Korea
An, Ji-Yeon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7266~7276
DOI : 10.5762/KAIS.2014.15.12.7266
This study examined the associations of physical activity by intensity with depression and suicidal thoughts among middle school students in South Korea. This study used data from the Survey of Korean Youth Health Risk Behavior. The samples were middle school students (Total 37,420). Logistic regression analysis were used. For depression, 33% of males and 43% of females felt depressed, whereas 17.8% of males and 27.7% of females experienced suicidal thoughts. In regression, both moderate physical activity and vigorous physical activity were associated significantly with a lower incidence of depression. In suicidal thoughts, moderate physical activity was associated with a lower incidence of suicidal thoughts among female students. In path analysis, vigorous physical activity had a direct and indirect effect on depression and suicidal thoughts. Physical activity is a potential mediator in decreasing depression and suicidal thoughts among middle school students.
Tuning Method of the Membership Function for FLC using a Gradient Descent Algorithm
Choi, Hansoo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7277~7282
DOI : 10.5762/KAIS.2014.15.12.7277
In this study, the gradient descent algorithm was used for FLC analysis and the algorithm was used to represent the effects of nonlinear parameters, which alter the antecedent and consequence fuzzy variables of FLC. The controller parameters choose the control variable by iteration for gradient descent algorithm. The FLC consists of 7 membership functions, 49 rules and a two inputs - one output system. The system adopted the Min-Max inference method and triangle type membership function with a 13 quantization level.
Effects of the Bonding Structure and Thickness on the Leakage Current of Semiconductors as Insulators
Oh, Teresa ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7283~7286
DOI : 10.5762/KAIS.2014.15.12.7283
SiOC films were prepared as insulators for displays by sputtering at low temperatures, and the relationship with the electrical properties waaas examined. The electrical properties of SiOC films were affected by the annealing process, and SiOC films annealed at 100oC showed a significant increase in thickness and a decrease in the reflective index. XRD revealed an increase in the degree of the amorphous structure. Moreover, the capacitance and leakage current of the SiOC films annealed at 100oC decreased. These characteristics of SiOC films highlight their potential as ideal insulators. Amorphous SiOC films by the reduction of polarization are dependent on the elongation effect of the bonding lengths in the structure and the thickness. The properties of these SiOC films are suitable for low temperature displays.
Analyzing of CDTA using a New Small Signal Equivalent Circuit and Application of LP Filters
Bang, Junho ; Song, Je-Ho ; Lee, Woo-Choun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7287~7291
DOI : 10.5762/KAIS.2014.15.12.7287
A CDTA (current differencing transconductance amplifier) is an active building block for current mode analog signal processing with the advantages of high linearity and a wide frequency bandwidth. In addition, it can generate a stable voltage because all the differencing input current flows to the grounded devices. In this paper, a new small signal equivalent circuit is proposed to analyze a CDTA. The proposed small signal equivalent circuit provides greater precision in analyzing the magnitude and frequency response than its previous counterparts because it considers the parasitic components of the input, internal and output terminal. In addition, observations of the changes made in various devices, such as the resistor (Rz) confirmed that those devices heavily influence the characteristics of CDTA. The designed parameters of the proposed small signal equivalent circuit of the CDTA provides convenience and accuracy in the further design of analog integrated circuits. For verification purposes, a 2.5 MHz low pass filter was designed on the HSPICE simulation program using the proposed small signal equivalent circuit of CDTA.
Design of V2I Based Vehicle Identification number In a VANET Environment
Lee, Joo-Kwan ; Park, Byeong-Il ; Park, Jae-Pyo ; Jun, Mun-Seok ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7292~7301
DOI : 10.5762/KAIS.2014.15.12.7292
With the development of IT Info-Communications technology, the vehicle with a combination of wireless-communication technology has resulted in significant research into the convergence of the component of existing traffic with information, electronics and communication technology. Intelligent Vehicle Communication is a Machine-to-Machine (M2M) concept of the Vehicle-to-Vehicle. The Vehicle-to-Infrastructure communication consists of safety and the ease of transportation. Security technologies must precede the effective Intelligent Vehicle Communication Structure, unlike the existing internet environment, where high-speed vehicle communication is with the security threats of a wireless communication environment and can receive unusual vehicle messages. In this paper, the Vehicle Identification number between the V2I and the secure message communication protocol was proposed using hash functions and a time stamp, and the validity of the vehicle was assessed. The proposed system was the performance evaluation section compared to the conventional technique at a rate VPKI aspect showed an approximate 44% reduction. The safety, including authentication, confidentiality, and privacy threats, were analyzed.
Target Object Detection Based on Robust Feature Extraction
Jang, Seok-Woo ; Huh, Moon-Haeng ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7302~7308
DOI : 10.5762/KAIS.2014.15.12.7302
Detecting target objects robustly in natural environments is a difficult problem in the computer vision and image processing areas. This paper suggests a method of robustly detecting target objects in the environments where reflection exists. The suggested algorithm first captures scenes with a stereo camera and extracts the line and corner features representing the target objects. This method then eliminates the reflected features among the extracted ones using a homographic transform. Subsequently, the method robustly detects the target objects by clustering only real features. The experimental results showed that the suggested algorithm effectively detects the target objects in reflection environments rather than existing algorithms.
Triple-band Multiplexer for a Low Power Portable Base Station
Seo, Soo-Duk ; Cho, Hak-Rea ; Yang, Doo-Yeong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7309~7316
DOI : 10.5762/KAIS.2014.15.12.7309
In this paper, a triple-band multiplexer using a microstrip transmission line was designed and fabricated to make use of a low power portable base station. This multiplexer was used in the triple-band including the cellular, WCDMA and LTE mobile frequency band, and designed to have an insertion loss of 0.8 dB, low SWR of 1.5 in the passband and a band rejection of 15 dB in the stopband. From the measured results obtained by a confidence test for the fabricated multiplexer samples, the maximum insertion loss and SWR of the fabricated multiplexer samples in all passbands of 824-894MHz, 1920-2170 MHz and 2500-2600 MHz were below 0.71 dB and 1.38, and the attenuations in the stopbands were better than 15 dB. Therefore, the triple-band multiplexer has good performance and satisfies the design specifications.
Study of the Application Method of a Converging Framework for Finance IT
Weon, Dal-Soo ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7317~7323
DOI : 10.5762/KAIS.2014.15.12.7317
Banks are preparing the system for the new concept of the 2020's. The framework of the core-banking solution is that various demands must be accommodated. In addition, the development process of new system must solve problems, such as obtaining the economic feasibility and expandability as well as minimizing the risk elements. This study verified the superiority of converging framework by analyzing the framework of new converging core-banking solution that can accommodate the current core-banking solution and future requirements. In addition, the study proposed application methods and the pros & cons of a converging framework. The migration effects and successful elements for changing to a new system are proposed.
Color Restoration Method Using the Dichromatic Reflection Model for Low-light-level Environments
Lee, Woo-Ram ; Jun, WooKyoung ; Jun, Byoung-Min ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7324~7330
DOI : 10.5762/KAIS.2014.15.12.7324
Color distortion of the dark images acquired under a low-light-level environment with a weak light source can be cause of the performance decreation of various vision systems. Therefore, recovering the original color of the images is an important process for enhancing the performance of the system. For this, this study proposes a color restoration method using a dichromatic reflection model. This paper assumes that the dark images can be classified into two parts affected by specular or diffuse reflection. Two different color constancy methods were then applied to the images to remove the effects of each reflection and two images were created as a result. The resulting images produced a one color-corrected image by combining with different weights according to the position in the images. For the performance evaluation, this paper used a synthesized image, and considered the Euclidean distance and angular error as an evaluation factor. In addition, a performance comparison was performed with the existing various color constancy method to achieve the objectivity of evaluation. The experimental results showed that the proposed method can be a more suitable solution for color restoration than the existing method.
A Study on the Development of a BIM Design Tool for Hanok Windows and Doors
Choi, Joong-Hyun ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7331~7339
DOI : 10.5762/KAIS.2014.15.12.7331
As the Korean government initiates the Han-style campaign, the efforts and expectations for the modernization and industrialization of Hanok are growing. Accordingly, a major R&D project sponsored by the government is in progress for the development of related technologies, in which the development of a Hanok design support system based on Building Information Modeling(BIM) technology is included as one of the major subjects. However, the development of design tools for Hanok so far has not focused on the windows and doors, which is another major element of Korean traditional architecture. Therefore, this study developed a BIM-based design tool for Hanok windows and doors as an approach to the integrated design of various Hanok elements and their applications to modern buildings. To this end, the characteristics of Hanok windows and doors were analyzed first in terms of the location, opening method, style, components, and the over-all construction. A design tool was then developed with the parametric modeling functions of the
system. The applicability and efficiency of the developed tool were verified with design simulations. This is expected to contribute to not only the application of Hanok windows and doors to modern buildings but also to the further development of an integrated Hanok design system.
Derivation of BIM/GIS Platform Application Scenarios and Definition of Specific Functions in Construction Planning and Design
Youn, Junhee ; Kang, Tae-Wook ; Choi, Hyun-Sang ; Kim, Changyoon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7340~7349
DOI : 10.5762/KAIS.2014.15.12.7340
BIM (Building Information Model) and GIS (Geographic Information System) are applied widely to all stages (Planning - Design - Building - Maintenance) of construction. Recently, research for designing an integrated BIM/GIS platform has been conducted to determine the synergy effects. This paper reports the derivation of BIM/GIS platform application scenarios and definition of specific functions in construction planning and design phases. First, BIM/GIS application scenarios and platform functions are derived for each phase based on an analysis of business affairs. Second, SW functions, which compose platform function, are defined. In the construction planning phase, location selection and route location business affairs were analyzed. Preliminary design and detailed design business affairs were analyzed in the construction design phase. The result of this research can be used for BIM/GIS integrated platform design in the future.
Study of the Temperature Difference between the Top and Bottom Web of Steel Box Girder without Concrete Slab by using Gauge Measurement
Lee, Seong-Haeng ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7350~7356
DOI : 10.5762/KAIS.2014.15.12.7350
To study the reasonable design thermal loads, a steel box girder bridge specimen, which has no concrete slab, was manufactured with real size dimensions. The temperature data was obtained at the web and diaphragm using thermo gauges that were attached according to height. In the hottest day, the temperature differences between the top and bottom of the bridge model were calculated. The temperatures in the actual bridge were measured and the temperature of the bridge specimen was compared. The temperature gradient models were proposed in both the web and the diaphragm. The proposed models showed a correlation of approximately 95.8% compared to the Euro code. This study can provide basis data for temperature-load design in the nation.
A Study of the Development and Utilization Plan of Volcanic Disaster Response System based on Spatial Information
Kim, Tae-Hoon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7357~7363
DOI : 10.5762/KAIS.2014.15.12.7357
Korea had been known as safe region regarding volcanic disasters. On the other hand, Baekdu mountain experienced a large eruption one thousand years ago and the precursor phenomena for a volcanic eruption have been frequently reported these days. Therefore, a number of volcano experts, who warn of a volcanic eruption on the Korean peninsula, has increased. This paper describes the utilization plan and evolution of developing volcanic disaster response system based on spatial information and scientific modeling process for Baekdu mountain. First, the business processes for volcanic disaster response are derived based on an analysis of business system and related IT-based systems. Second, the design and development of a volcanic disaster response system are derived based on the business process. Third, a utilization plan is suggested to maximize the efficiency of the system. The application of the suggested volcanic disaster response system to NEMA, additional tests and system supplementation should be carried out. The complete volcanic disaster response system, which will be implemented based on this research, is expected to minimize the volcanic disaster damage in the area of Korea, China and Japan.
Development of the Construction Post-evaluation System in Public Construction Projects
Ok, Hyun ; Yang, Sung-Hoon ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7364~7371
DOI : 10.5762/KAIS.2014.15.12.7364
Construction post-evaluation (CPE) boosts the efficiency of public construction projects by assessing the performance results of public construction projects and using the results to pursue similar projects. This evaluation comprehensively analyzes and assesses the planning of construction work, the estimated and actual construction costs, the construction period, the demand for construction projects, and the effects of construction projects after the construction work to ensure efficiency. The data was used to prevent lax project execution and enhance the quality and efficiency of similar construction projects. On the other hand, CPE results information must be managed systematically to refer to and use CPE data in similar construction projects. Therefore, in this study, the CPE system was developed as a measure of the systematic and comprehensive management and use of the CPE results information of individual ordering agencies. Therefore, the groundwork was laid for the assurance of quality enhancement and efficient project execution in public construction projects. This system is expected to serve as a useful tool for comprehensively analyzing and assessing construction works.
Study of the Interpretation of Landscape in Daniel Libeskind Architectural Space
Song, Dae-Ho ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7372~7379
DOI : 10.5762/KAIS.2014.15.12.7372
This study examined the landscape characteristics of Daniel Libeskind's architecture by analyzing the perceived form characteristics visually and the sense of space recognized inside and outside the building in Daniel Libeskind architecture. The results showed that Libeskind is to deconstruct not only the 'temporal boundaries' but also the 'morphological contradiction' through sketch and public architecture by de-constructive language. These series of works could be interpreted as the space perceived time and space in the past by the 'Blurredness of temporal and spatial borderline'.
Study of evacuation fire doors in multiple facilities
Cha, Jong-Ho ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7380~7384
DOI : 10.5762/KAIS.2014.15.12.7380
Evacuation fire doors were manufactured by applying phosphorescent paint to the whole fire door whose performance was already recognized, and applying heat sensitive paint around the grip. The facility was improved by the evacuation and safety functions on the fire door, which has been used as only a fire facility, and the fire door is also used as an evacuation facility. The brilliance of the evacuation safety fire door manufactured in this study passed the brilliance test of Korea Fire Institute with a performance more than the brilliance (7mcd after 60 minutes) of the existing inducement sign. During a fire, the visible area is larger than the evacuation door inducement, etc. and light preventive status in the lower part of the fire door was observed during the descent of smoke. Therefore, it is considered to extend the evacuation effective time of evacuators. In heat sensitive paint applied around the grip, a color change is observed on the fire door when approaching a certain temperature (
). Therefore, the first disaster that evacuators can encounter on the grip of a fire door during a fire can be prevented and should be helpful in recognizing the backfiring possibility and preventing safety accidents for firefighters who must enter a fire space.
Extension of the IFC Schema for Road Subsidiary Facility
Cho, Geun-Ha ; Ju, Ki-Beom ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7385~7392
DOI : 10.5762/KAIS.2014.15.12.7385
Extension IFC schema of subsidiary facilities were developed for the purpose of establishing an information model standard for roads. The IFC entities, types and properties for subsidiary facilities were defined through an analysis of the road design documents for the extraction physical component and design information. The converter and viewer for applying the new schema were then developed. Subsidiary facilities BIM models were converted to new IFC models to verify the research results. Standard BIM-based delivery and verification systems are enabled by using a standard model converted by new schema. Furthermore, it can establish an open BIM environment using an IFC over the entire life cycle of the civil engineering project.
Study of Improving the Biotope Area Ratio System for Urban Agriculture Vitalization - Focus on Daylight Condition Analysis-
Lee, Gunwon ; Jeong, Yunnam ; Min, Byunghak ; Kim, Seiyong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7393~7402
DOI : 10.5762/KAIS.2014.15.12.7393
This study focused on improving the Biotope Area Ratio, which has existing availability as a legal and institutional method for the architectural and urban fields to respond rapidly to recently growing demands for urban agriculture. The existing Biotope Area Ratio indicators only considers the depth and permeability of soil among a range of conditions for plant growth; they can be used for landscaping plants management but have difficulties in dealing with plants that are the major factors in urban agriculture. This study aimed to verify this hypothesis and suggest a direction of improvement in the Biotope Area Ratio. The study discovered that the management of plant growth only using the Biotope Area Ratio indicators has limitations.
Study of Design Standard Establishment of Vehicle Rotation Area in the Dead-end Parking Lot
Lim, Jae-Moon ; Oh, Se-Kyung ; Kim, Hoe-Kyoung ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7403~7415
DOI : 10.5762/KAIS.2014.15.12.7403
This study points out a problem that the vehicle rotation area provided in a dead-end parking lot for apartment blocks is misused as unreasonable parking places but accordingly, the edge parking spaces are rarely used for parking. Therefore, this study aims to establish a parking design standard to improve the parking convenience and land-use efficiency by investigating the real parking behaviors and problems identified in the study area, multiple apartment blocks in Haeundae-gu, Busan. This study calculated two simple linear regression models for two mutually exclusive factors, such as the parking convenience and land-use efficiency, respectively, and specified a trade-off point that optimizes both factors. The study results found that parking convenience and land-use efficiency can be improved by not only changing the misused vehicle rotation area to normal parking spaces depending on the usage pattern, but also by increasing the width of the edge parking spaces from 2.3m to 2.6m. Finally, this study suggests two parking design cases for more realistic design applications by considering the parking environment in the dead-end parking lot for apartment blocks.
Study of effective management by considering the resident characteristics in newtowns -Based on Haeundae & Hwamyong newtowns in Busan-
Kang, Gi-Cheol ; Kim, Heung-Kwan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7416~7423
DOI : 10.5762/KAIS.2014.15.12.7416
More than 15 years has passed since the completion of the Haeundae and Hwamyong newtown areas, and various problems have emerged, The residents of the new down town area are now seeking a proper management plan through research into the residents' satisfaction. The results showed that the target area has differences, according to the object of development, location condition and characteristics of the residents. Therefore, the results present each new town area with a different management plan. Finally, an overall maintenance plan, and the establishment of an organization for the supervision and management of continuous operation system is suggested.
Monitoring of the Crustal Movement by the Earthquake Effect using Web-based GPS Data Processing Solution
Park, Joon-Kyu ; Jung, Kap-Yong ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7424~7429
DOI : 10.5762/KAIS.2014.15.12.7424
GPS (Global Positioning System) is currently used widely in the ground section, such as surveying, mapping, geodesy, geophysics, the aviation section, such as aerial navigation and aerial photography, the sea section, including ship navigation and bathymetry, and space section, such as the satellite orbit and Earth's orbit. On the other hand, its use is limited due to the professional knowledge and expense to process the data for precise analysis. As a result, a web-based data processing solution for precise point positioning using GPS data was developed by c# for non-specialized people to process easily. In addition, the crustal movement speed of Korea after an earthquake was calculated to be an average of 30mm/year for each CORS, suggesting that it is possible to monitor crustal movement.
Case study of Civil Engineering BIM Projects: Perspective of Korean Public Owners
Kim, Changyoon ; Moon, Hyoun-Seok ; Nah, Heu-Suk ; Kim, Jin-Uk ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7430~7437
DOI : 10.5762/KAIS.2014.15.12.7430
Owing to the increase in large and complex construction projects, the design paradigm of architecture and civil engineering projects has changed from 2D CAD to 3D CAD. For this reason, to meet the strong requirements of project contractors, various efforts have been made to adopt a Building Information Modeling (BIM) technology for effective construction management. On the other hand, compared to architectural projects, only a few civil engineering project cases have been conducted in the perspective of public contractors. This is because the characteristics of civil project contractors and the negative pursuit of adopting BIM technology due to the lack of a current BIM system and technologies. Recently, positive changes in adopting BIM technology for public projects were anticipated by public owners, such as the Public Procurement Service and the Ministry of Land, Infrastructure and Transport. In this regard, this study analyzed the current BIM technology status of public owners in Korea to adopt the BIM policies and guidelines of the Korean government. Strategies for adopting BIM technologies for Korean public owners are also discussed based on an analysis of civil engineering BIM project cases.
Study of the Floc Size Distribution for the Efficiency Assessment of Flocculation Process in Water Works
Jung, Jin-Hong ; Choi, Gye-Woon ; Park, Jae-Roh ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7438~7442
DOI : 10.5762/KAIS.2014.15.12.7438
An assessment of flocculation was performed by measuring the distribution of the floc size during sedimentation in water works. The size and number of flocs have a greater effect on an evaluation of the efficiency of flocculation rather than the turbidity. The data was collected in situ using particle image velocimetry and image analysis. The measurements were carried out at a water depth of 1m. The removal efficiency of the total organic compounds, UV absorbance and turbidity depended on the size and floc size distribution in flocculation as the G value. The G value of 50 sec-1, 30 sec-1 and 10 sec-1 showed the highest degree of efficiency in the case of an inlet water turbidity of 5 NTU, and the highest degree of efficiency was observed at a G value of 65 sec-1, 40 sec-1 and 10 sec-1 when the inlet water turbidity was 263 NTU. The number of flocs with a distribution of above
was 14. The dynamics between two important growth mechanisms were investigated as the energy input changed. This is a certain method that makes use of the size and number of flocs as an efficiency assessment.
Treatment of Seafood Wastewater using an Improved High-rate Anaerobic Reactor
Choi, Byeong-Yeong ; Choi, Yong-Bum ; Han, Dong-Jun ; Kwon, Jae-Hyeok ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7443~7450
DOI : 10.5762/KAIS.2014.15.12.7443
To resolve shortcomings of high-rate anaerobic processes, such as high upward flow velocity, this study sought to improve the structure of the high-rate anaerobic reactor and evaluate its performance. The improved reactor was manufactured by adjusting the diameter and dividing the reactor into three parts. The evaluation of the structurally improved reactor revealed that the reactor could stabilize a single circuit, and prevent the accumulation of solid matter and leakage of microbes, thereby stabilize the microbes. In the process of anaerobic digestion, an increase in pH and alkalinity within the reactor was presumably attributed to bicarbonate created in the process of organic matter decomposition and due to the re-dissolution of some biogas. To maintain a high rate of organic matter removal, the reactor should be operated with more than 9 hrs of HRT and an organic matter load of under
. The methane gas generated in the anaerobic digestion process showed a high content of 65~83 % at the organic matter load of over
. per removal of CODcr. The methane quantity was generated at
, showing that it was smaller than the theoretical methane generation amount (0.35) in the STP state. In the latter part of high-rate anaerobic process, an advanced treatment process was required to remove nitrogen.
Multi-agent Control for Wind Hybrid Power Systems
Kang, Seung-Jin ; Ko, Hee-Sang ; Boo, Chang-Jin ; Kim, Ho-Chan ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7451~7458
DOI : 10.5762/KAIS.2014.15.12.7451
In this paper, the system modeling and multi-agent control algorithm in isolated wind hybrid power systems are proposed. The multi-agent control is a new type of the hybrid control method that is made up of wind turbine, diesel generator, battery, and dumpload. Fourteen different modes of operations of the wind hybrid power system are performed by wind speed changes and the SOC of battery. Simulation results show that the efficient operations under various wind variations in isolated wind hybrid power systems can be obtained using proposed algorithms.
Study of the Purchasing Behavior of Cosmetics :Focused on Japanese, Chinese Tourist and Korean
Chun, Joo-Hyung ; Chun, Yong-Jin ;
Journal of the Korea Academia-Industrial cooperation Society, volume 15, issue 12, 2014, Pages 7459~7466
DOI : 10.5762/KAIS.2014.15.12.7459
This study examined the purchasing behavior of cosmetics among Japanese, Chinese tourists and Koreans, as well as the differences according to nationality. Based on a literature study, a questionnaire was developed and a field survey was performed. A self-administered survey was conducted throughout Myungdong and Suwon. The 251 usable questionnaires were collected. A Reliability test, Factor analysis, Regression test, and ANOVA were used. The purchasing behavior of cosmetics has 5 factors gained by the factor analysis, including the functionality of cosmetics, the newest one of the cosmetics, brand-oriented cosmetics, impulsive purchase, and physical evidence. In addition, the purchasing behavior of cosmetics is becoming complicated, and the attitudes to cosmetics has changed. Finally, there are a few differences among Japanese, Chinese tourists and Koreans. According to this research, cosmetic companies must underline their brand and focus on managing the cosmetic functionality, physical evidence of the store, and the skill and attitudes of point of sales.