• Proceedings of the KIPE Conference
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• 2013.11a
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• pp.19-20
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• 2013

3상 250레벨의 MMC형 HVDC시스템의 구현에서는 한 개의 상마다 500여개의 SM(sub module)이 필요하게 되고 MM(master module)에서 10Khz의 샘플링을 처리한다고 하면 100us동안에 500여개의 SM에서 각종 데이터를 받아서 처리한 후에 다시 SM에 처리된 정보를 전송해 줘야한다. 따라서 SM에서 데이터를 받고 전송하는데 따른 100us 동안의 필요한 처리양과 네트워크의 속도 및 오버헤드(overhead)등의 구성과 토포로지에 관해 알아보았고, 이를 적용하여 멀티레벨의 HVDC에 필요한 데이터 네트워크에의 전송량 계산에 대한 소프트웨어를 제작하여 손쉽게 설계할 수 있도록 하였다.

• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.52-55
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• 2004

Digital communication networks have become a core technology in advanced building automation systems. BACnet(${\underline{B}}uilding$ ${\underline{A}}utomation$ and ${\underline{C}}ontrol$ ${\underline{net}}works$) is a standard data communication protocol designed specifically for building automation and control systems. BACnet adopts Master-Slave/Token-Passing (MS/TP) protocol as one of its field level networks. In this study, we introduce a method of implementing bandwidth allocation scheme in the MS/TP protocol. The bandwidth allocation scheme improves the capability of real-time communication of the original MS/TP protocol. The bandwidth allocation scheme introduced in this paper can be easily implemented in the existing MS/TP protocol with a slight modification. In this study, we actually developed the hardware and firmware of MS/TP module in which bandwidth allocation scheme is implemented.

• Journal of the Korean Society of Costume
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• v.30
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• pp.19-40
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• 1996

The purpose of this study is to make and analyse established studies of clothing pay-chology and marketing, showing the disciplin-ary trends problems and the outlook of social psychological Aspects of clothing. To achieve the purpose 621 articles have been used. -519 for master's and doctor's de-gree and 102 reported in journals -no social psychological Aspects of clothing for the past two decades(1974-1994) in Korea. All of these annual data were classified into making five years a unit. In the statistical analy-sis 'frequency' and 'percentage' were applied. To verify the degree of significance x2-test were used. 1. The trend of the study on the fields of clothing psychology consumer behavior and marketing over the period between 1974 and 1994 showed the continual trend of increase since the 1974 that the article on the field of clothing the continual trend of increase since the 1974 that the article on the field of cloth-ing psychology was first reported. 2. The domain that has the greatest pro-portion in the field of clothing psychology is concerned with the individual psychological factor and the study concerning interpersonal perception and development the measurement tool showed the tendency to continue to in-creas.

• Journal of the Korean housing association
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• v.16 no.1
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• pp.27-35
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• 2005

It has seen the significant increase of water consumption rate due to rapid industrialization, high-densities of city, and increasing the population; thereby leads further water resource required in near future. In order to solve this deficit there are one of solution that gray water method demonstrates advantages regarding the questions of optimal water utility and thereby master plan of water. The method of study is analysis of investigation data through interview and research of sewage treatment plants in Daegu City. Through these analysis, this paper examines the capacity of graywater and optimal graywater facility.

• Journal of the Korean housing association
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• v.10 no.2
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• pp.185-193
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• 1999

This study aims to identify the usage behavior of An-bang space in apartment dwellers through the perception, the residential life style and the use of furniture. The data is collected from interviewing housewives through questionnaire designed for this study. The 210 date were analyzed by using Frequencies, Mean, Factor analysis, ${\chi}^2-test$, t-test, one-way ANOVA and scheffe-test. The main results of the study are as follows: (1) It is called An-bang' or 'large room' rather than 'master's bedroom' although it is recognized as exclusively couple-oriented space. And are founded to be different designation and perception on An-bang space. (2) The residential life style in An-bang is classified as family-centered gathered, rest entertainment, make-up fitting and hobby. And it has significant differences among dwellers according to their personal characteristics. (3) The furniture style and arrangement pattern are mostly modern ones and 'ㄷ' type.

• Journal of Families and Better Life
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• v.18 no.3 s.47
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• pp.53-70
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• 2000

This research was tried to understand the income, consumption expenditure with the family lifecycle stage of urban workers and on the basis of this to pull out the optimal consumption line and to provide the basic data for long term management of household finance. As a whole, it ti revealed that real consumption both in the period of establishment and reduction is lower than optimal consumption, whereas real consumption in the extension period is far higher than the optimal consumption in the same period. The reason amy come from that the educational expenditure of children in the middle age reaches the climax and in addition household in the same time tends to add the marriage costs supporting his children.

• Journal of Families and Better Life
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• v.18 no.3 s.47
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• pp.115-128
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• 2000

The purpose of this study was to investigate investment behavior of mothers who have children of the lower grades in primary school and the effects of the variables. The subjects of this study were 454 mothers who have children of lower grades in primary school in Seoul. Statistics used for data analysis were frequency, mean, percentage, multiple regression. The households which paid their money for private education investment cost was 182.543 won a month and the mean of time use of mother for child education was 125 minutes a day. The most influencing variable on money investment to private education investment behavior was family income and on time investment to it was influence of reference group.

• Journal of Families and Better Life
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• v.26 no.6
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• pp.159-166
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• 2008

According to the change in diverse tendency of residents, construction companies has developed the brands of apartments with the concepts of LOHAS, well-being, ubiquitous, etc. The purpose of this study was to suggest space requirement and planning for residents characteristics. The questionnaire survey was adopted in this study and 252 cases were used for data analysis. The survey analysis has been made by using of SPSS WIN 12.0. The major findings were as follows; (1) Resident opinion about the direction of each space was investigated into the need of South-facing in master bedroom highly. (2) The residents didn't want to decrease the current size of each space, the space which wanted to increase was livingroom. (3) The significant variables of space requirement and planning for residents characteristics were family life cycle, the age of householder, the occupation of householder, the size of apartment.

• Journal of Korean Society for Quality Management
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• v.28 no.3
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• pp.68-81
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• 2000

In this paper, we studied the four stages of quality related education and training and identified alignment factors that have influence on successful TQM education and training. Based on extensive literature reviews the four stages are extracted such as quality concepts training, quality tools training, special topics training, and leadership training. Also we determine the alignment factors. A framewok of research model including above factors is developed and tested statistically. The perceived data are collected from managers of quality departments of 140 Korean firms through survey. The results show that alignment factors which achieve success in Quality related education training are using relevant examples and implementing training at the top in quality concepts training, providing time and opportunity to master skills in quality tools training, organizing courses into a logical curriculum in special topics training, and providing ongoing feedback in leadership training. We also offered numerous suggestions that can help organizations develop effective training programs to meet their objectives.

• Asian Journal of Innovation and Policy
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• v.3 no.2
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• pp.193-215
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• 2014

This study analyzes the factors on the determinants of research productivity. In addition, this study uncovers the relationships between research productivity and various explanatory variables, and between explanatory variables. As for research productivity, 3 indices were used such as the number of papers, patents, and a combination of them. The data is the 3-year average from 2010-2012 by 1,383 researchers from 6 disciplines such as physics, chemistry, biology, mechanical engineering, electricity and electronics, and chemical engineering, reported to the National Research Foundation of Korea. Personal factors such as sex, age, academic rank and location of affiliation show the group difference for productivity. In addition, most resource factors such as the number of graduate students and research funds showed the same result with personal factors. As for the determinants, master and doctoral students and government funds are the most powerful factors for research productivity, but industry funds for patent and overall productivity.