• Title/Summary/Keyword: interdisciplinary studies

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Analysis on the Hydroelasticity of Whole Ship Structure by Coupling Three-dimensional BEM and FEM (3차원 경계요소법과 전선 유한요소 해석의 연성을 통한 전선 유탄성 해석)

  • Kim, Kyong-Hwan;Bang, Je-Sung;Kim, Yong-Hwan;Kim, Seung-Jo
    • Journal of the Society of Naval Architects of Korea
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    • v.49 no.4
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    • pp.312-326
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    • 2012
  • This paper considers a fully coupled 3D BEM-FEM analysis for the ship structural hydroelasticity problem in waves. Fluid flows and structural responses are analyzed by using a 3D Rankine panel method and a 3D finite element method, respectively. The two methods are fully coupled in the time domain using a fixed-point iteration scheme, and a relaxation scheme is applied for improve convergence. In order to validate the developed method, numerical tests are carried out for a barge model. The computed natural frequency, motion responses, and time histories of stress are compared with the results of the beam-based hydroelasticity program, WISH-FLEX, which was thoroughly validated in previous studies. This study extends to a real-ship application, particularly the springing analysis for a 6500 TEU containership. Based on this study, it is found that the present method provides reliable solutions to the ship hydroelasticity problems.

A Study on Current Status and a New Direction for Archival Education (기록 전문직 양성 프로그램의 현황과 개선방향에 관한 연구)

  • Chung, Yeon-Kyoung
    • Journal of Korean Society of Archives and Records Management
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    • v.10 no.1
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    • pp.99-118
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    • 2010
  • The purposes of this study are to find core domains of archival knowledge based upon two guidelines from foreign countries, and to analyze current status of archival education programs and curriculums in Korea and other countries. Based upon the analysis, several new directions for archival education in Korea are suggested as follows: strengthening the archival graduate programs for archival profession, developing and expanding interdisciplinary courses based upon participation and trial of various related disciplines, increment of graduate credits, hiring of the Ph. D. full-time faculty in archival studies, strengthening internship and research courses, developing a standard curriculum for archival education, and active participations and partnerships among archival graduate schools, professional archival societies, and archival related institutions.

The effects of service education and empowerment for sales person of fashion companies on customer orientation, job performance and job satisfaction (패션업체 판매원의 서비스교육과 임파워먼트가 직무만족, 고객지향성과 직무성과에 미치는 영향)

  • Choi, Jung Eun;Lee, Kyoung Mee;Hwang, Sun Jin
    • The Research Journal of the Costume Culture
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    • v.22 no.1
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    • pp.28-41
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    • 2014
  • The study focuses on verifying the effects of service education and empowerment on job satisfaction, job performance, and customer orientation. 290 salespeople working for fashion companies participated by completing a survey. The collected data was then analyzed with SPSS 16.0 and AMOS 7.0. Structural equation modeling was used to examine the goodness of fit. Looking at the results of this study, the service education of salespersons in fashion companies was shown to affect their level of satisfaction with their compensation, whereas empowerment affected their psychological satisfaction. These findings indicate that the service training and empowerment as experienced by salespersons working for fashion companies affect their customer orientation and job performance. Specifically, psychological satisfaction as part of the overall level of job satisfaction was found directly to affect their customer orientation, whereas their satisfaction with their compensation did not affect their customer orientation. Customer-orientation as influenced by service education and empowerment was revealed to have direct effect on job performance. The results of this study indicate that the service education of salesperson working for fashion companies and their level of empowerment create job satisfaction and customer orientation in these individuals. This study will be a valuable source of information for those who create salesperson empowerment programs and salesperson management strategies for fashion companies. Such programs and management strategies can facilitate efficient job performance by salespersons working for fashion companies and increase their level of job satisfaction.

The effect of man's gender identity, brand gender and salesperson sex on fashion brand attitude (남성의 젠더(Gender) 정체성, 브랜드 젠더, 판매원의 성이 패션 브랜드 태도에 미치는 영향)

  • Kim, Jung Mock;Hwang, Sun-Jin;Huh, You-Jin
    • The Research Journal of the Costume Culture
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    • v.22 no.1
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    • pp.42-54
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    • 2014
  • This research used an experimental design in an effort to assess the influence of brand gender and salespeople on the attitudes toward brands according to the males' gender identity traits. The study used a three-way split-plot experimental design, and data were analyzed by t-tests, and ANOVA. The subject of this research was men in their 20s and 30s, and a total of 178 people were selected through convenience- sampling. The findings are as follows: first, masculine male consumers preferred masculinity fashion brands; however, androgynous consumers preferred brands that reflect androgyny. Second, there were no differences in brand attitude according to the gender of the salesperson for the masculinity group, but the androgynous group estimated the brands as better when the salesperson was female. Third, there were no differences in the brand attitudes among consumers according to gender of the salesperson for the Galaxy; however, for Solid Homme, brand preference was stronger when the salesperson was a woman. Fourth, the influence of brand gender and salesperson gender on brand attitudes differed according to the gender of the consumer. Therefore, apparel companies must clearly understand the characteristics of consumer gender identity and execute proper marketing strategies in order to induce stronger positive attitudes toward their brands. Moreover, apparel companies should perceive that brand gender and the gender of the salesperson can consequently encourage brand preferences.

Effects of Temperament and Character on the Specialty Interests of Medical Students (기질 및 성격 특성이 의과대학 학생의 관심 전공 선택에 미치는 영향)

  • Kim, In Hyang;Ko, Eun;Kim, Eun Jung;Ban, Soon Hyun;Jung, Jiyoung J.;Lee, Sun Hea;Lyoo, In Kyoon;Lee, Junghyun H.
    • Korean Journal of Biological Psychiatry
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    • v.19 no.4
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    • pp.199-204
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    • 2012
  • Objectives In the previous studies, it has been suggested that temperament and character may affect specialty choice in medical students. The aim of this study is to investigate the effects of temperament and character on specialty interests in medical students. Methods A total 132 third-year medical students initially participated in this study. Among these participants, 128 students had filled out both demographic and Temperament and Character Inventory (TCI) questionnaires. Socio-demographic data, specialty interests and Cloninger's TCI scores were obtained. The specialty interests were categorized into surgical, medical and other departments. Results Among 128 students, 88 (68.7%), 29 (22.7%) and 22 (8.6%) students chose medical, surgical and other departments, respectively. Students choosing surgery departments showed lower Harm Avoidance scores (F = 4.39, df = 1, p = 0.04) and higher Self-Directedness scores (F = 4.30, df = 1, p = 0.04) than those who chose medical departments. There was no significant differences in Novelty Seeking, Reward dependence, Persistence, Cooperativeness, Self-Transcendence scores between groups. Conclusions To the best of our knowledge, this is the first study that has demonstrated the relationship between TCI scores and specialty interests of medical students in Korea. The current study suggests that temperament and character influence specialty interests in medical students. These findings could have implications for medical education research and career counseling.

Analyzing Change of Discomfort Index for Transpiration of Street Tree (도시 가로수의 증산 작용으로 인한 불쾌지수 변화 분석)

  • Yun, Seok-Hwan;Lee, Dong-Kun;Park, Chae-Yeon
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.23 no.5
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    • pp.29-43
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    • 2020
  • Thermal environment of city is getting worse due to severe urban heat island caused by climate change and urbanization. The cooling effect of street tree is regarded as a effective way to ameliorate the urban heat environment. The effect is largely made up of shadow formation and transpiration. This study aims to identify how the transpiration affects the discomfort index by analyzing comprehensive impact of the transpiration on the air temperature and relative humidity. The changes in the amount of transpiration, air temperature, and relative humidity were estimated for Seogyo-dong area which has a lot of floating population in Seoul, at 2 p.m. in dry day in July and August. On average, the transpiration of the street tree decreased the temperature 0.3℃ and increased the relative humidity 2.6% in an hour. As a result of these changes in temperature and humidity, the discomfort index rose mostly(0.036 on average). It was always get rise especially on the day when the discomfort index was above 80(0.05 on average). However, compared with the significant change in temperature and humidity, the variation of the discomfort index itself was very slight(up to 0.107). Therefore, the effect of transpiration by the street trees might not be effective in the planning to improve the thermal environment(especially on the day when the discomfort index is high). It is necessary to select the species of trees and planting location considering the cooling effect of shade formation synthetically.

Effects of Human Resource Management Activities and R&D Capabilities of SMEs on Organizational Effectiveness (중소기업의 인적자원관리활동과 연구개발 역량이 조직유효성에 미치는 영향)

  • Noh, Seong-Yeo;Seo, Jong-Seok;Ock, Young-Seok
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.39 no.3
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    • pp.100-108
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    • 2016
  • The purpose of this study is to present a business strategy plan to increase organizational effectiveness of small and medium-sized enterprises. The research investigated in the level of human resource activity, such as recruitment, education, evaluation, compensation and development for the employees and executives who are working at small and medium-sized enterprises where located in Busan and Gyongnam province. With this, the research carried out actual proof analysis on the level of human resource activity effects on organization effectiveness like job satisfaction and organizational commitment. The following implications can be acquired from the result of multiple regression analysis on the 201 employees of small and medium enterprises. First, small and medium-sized enterprises should carry out human resource management activities and improve research and development capacity to enhance organization effectiveness. Second, in order to improve job satisfaction of the members of small and medium-sized enterprises, the management should concentrate on recruitment activity and reward maintenance management activity and come up with strategies to enhance learning ability and external network ability. Third, in order to enhance organizational commitment of the members of small and medium-sized enterprises, recruitment activity, training activity, and reward maintenance management activity should be carried out and the management should come up with strategies to enhance learning ability and external network ability. In this research, the objective was only to find out antecedents of organization effectiveness, but considering that causality might arise among the antecedents, in the studies hereafter, the verification on the structural relationship of various factors will be needed.

Generation of Simulated Image from Atmospheric Corrected Landsat TM Images (대기보정된 Landsat TM 영상으로부터 모의영상 제작)

  • Lee, Soo Bong;La, Phu Hien;Eo, Yang Dam;Pyeon, Mu Wook
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.33 no.1
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    • pp.1-9
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    • 2015
  • A remote sensed image simulation following to weather and season conditions can be performed by a reverse atmospheric correction which is a function of image preprocessing. In this study, we have made an experiment to generate the simulated image to the raw image, which is prior to the atmospheric corrected images under the specific weather conditions. The applied methods in this study were the Forster algorithm (1984) and 6S RTM (Radiative Transfer Model). The simulated images has been compared with the original image to analyze compliances. In fact, the results from 6S RTM method show better compliances than Forster, with a mean of RMSE of DN difference 9.35 and a mean of $R^2$ 0.7. In conclusion, a simulated image has practical feasibility when similar to the period and season as the reference image.

Structural Simplicity Examined from a Perspective of the Comparison of Architecture and Fashion (건축과 패션의 비교를 통해 고찰한 구조적 단순성)

  • Park, Seon-Ji
    • Journal of the Korea Fashion and Costume Design Association
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    • v.17 no.1
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    • pp.1-11
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    • 2015
  • Fashion and architecture essentially have structure to build space for a form of three dimensions. This study defines the form in which structure in itself becomes design as structural simplicity and investigates design paying attention to only structure. It is one of efforts in order to display new design required in the age of a flood of design and it is considered that before developing design through the fusion of architecture and fashion, understanding structure which is the most fundamental element to constitute the form of the two genres will be a groundwork to develop proper fusion design. This study elucidates similarities between architecture and fashion through literature review and investigates structure meant in architecture and fashion, and after that, collects corresponding examples through related literature and fashion information site. For structural simplicity in architecture, structure of a building in itself is a form and decoration at the same time, and it appears as a form of minimizing other elements and stressing the structure only. Structure in fashion means composition line which essentially exists to embody two dimensional materials onto three dimensional human body. As elements of geometric lines are creatively expressed by a designer in order to constitute three dimensional form from structural simplicity, they connote a variety of functions and exert decorative effects as well. And the shape of structure expressed like this is employed as a tool to show off the designer's techniques.

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Sex and Population Differences in Intelligence Are Partly Caused by Sexual Selection: Hn Evolutionary Hypothesis

  • Piffer, Davide
    • Interdisciplinary Bio Central
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    • v.6 no.4
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    • pp.2.1-2.7
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    • 2014
  • Sexual dimorphism in intelligence suggests that this phenotype is a sexually selected trait. This view is supported by an overrepresentation (compared to the autosomal genome) of genes affecting cognition on the X chromosome. The aim of this study is to test the hypothesis that sexual selection can explain sex and country-level differences in performance on tests of fluid intelligence. Nationally representative samples from N = 44 countries were obtained from the Programme for International Student Assessment (PISA) Creative Problem Solving (CPS), which evaluates the core of intelligence, that is novel problem solving ability. Sexual selection has the double effect of increasing the prevalence of a favored phenotype and reducing genetic variation in sexually selected traits. Matching these predictions from evolutionary theory, the average country fluid intelligence is positively correlated to sexual dimorphism after partialling out per capita GDP and the latter in turn is inversely correlated to variance in intelligence scores within populations. Males have a higher variance than females but there is a negative correlation between male-female difference in variance and sexual dimorphism in intelligence, suggesting that selection reduces variance more in the selected sex. Average country male height is negatively correlated to sexual dimorphism in intelligence, a fact that supports the notion of a trade-off between physical and intellectual competition in the context of access to females. The results of this study, if replicated, imply that genome-wide association studies of cognition may benefit from a focus on sex chromosomes, which so far have been neglected. Another implication of this study is that intelligence has continued to evolve after different human populations migrated out of Africa and possibly up to the 19th century, as suggested by the substantial variability in sex differences even between neighbouring countries.