스커트 3D 모델의 기하학적 생성 방법

최우혁,최창석,김효숙,강인애 한국의류학회 2003 한국의류학회지 Vol.27 No.7

This paper proposes a geometrical method for generating and draping the skirt 3D models. The method constructs a 3D basic skirt model using a truncated elliptical cone and generates the various skirt 3D models by controlling the elliptical cone. The B-Spline approximates the 3D drapes which change variously according to the angles and the textiles of the skirts. The mapping sources consist of the textile textures and the skirt 2D model. The 2D models are obtained by mapping the 3D skirt models to the 2D plane. The mapping sources allow us to map the textiles to the 3D skirts. We make the real skirts for the 6 kinds of angles and textiles, and investigate the data of their drape appearances. The investigated data are applied to the virtual skirts. Appearances of the virtual skirts are similar to those of the real.

석탄회 펠렛의 미연탄소 연소 현상 분석

崔尙丁,李孝眞,吳明淑 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-

As the number of coal fired power plants in the domestic power industry continues to increases, the amount of fly ash produced is also increasing, making the reutilization of fly ash a vital issue. Various methods to reutilize the fly ash from coal power plants have been investigated, and one of such areas with the potential to grow is the usage as light weight sintered construction materials. Sintered fly ash aggregates are produced in two steps; the first is the pellet formation step, during which the fly ash particles containing unburnt carbons were made into a pellet using caking components, and the second the pellet sintering by the combustion heat of the carbons. During the sintering process, the combustion rate of the carbon affects the characteristics of sintered pellets. The combustion of carbon occurs via adsorption of O₂ on the active sites, and desorption of CO/CO₂. The parameters which affect the rate of adsorption, desorption, and transfer of O₂ and CO/CO₂ include the O₂ partial pressure and flow rate, the pellet size, the porosity, the pore tortuosity, the pore size distribution, the carbon content and distribution. This study investigated the combustion of carbon during the production of sintered fly ash through modeling. A simple combustion model using Langmuir isotherm is used to calculate the pellet temperature. The oxygen diffusion through the pores is ignored. At the temperatures of sintering, the desoption process is a rate limiting process, making the overall rate sensitive to the desoption kinetic parameters. In addition, it was found that the carbon content and the heat capacity of the pellet affected both the rate of the reaction and the final pellet temperature, while the area of active sites only affect the reaction rate. The future work will include the combustion modeling with external and internal diffusion of O₂, and the model confirmation through experimentation.

공공기관의 가족친화경영 활성화방안

유계숙,최효진 한국가족관계학회 2009 한국가족관계학회지 Vol.13 No.4

The purpose of this study is to develop strategies to improve family-friendly policies of organizations in public sectors. Using both of survey and interview methods, it also examines the obstacle and improvement factors of implementing family-friendly policies. The survey data were collected from HR managers of 612 organizations, and 25 HR managers and 20 employees of 50 organizations m public sectors were interviewed. The major findings of this study are as follows: The rates of employees' utilization of family-friendly policies in public sectors were higher than those in private sectors. Employees' utilization of programs had significant influences on financial and work performances. The interview results from HR managers and employees of public sector organizations showed that perfunctory implementation of programs, lack of understanding of policies, unfriendly organization culture to employee's family life, and lack of tangible performances were the main obstacles to implementing family-friendly policies. Finally, the business and policy implications of these findings are discussed.

관동맥질환에서 저밀도 지단백 입자 크기의 분포

임효영,김인숙,승기배,강동헌,전두수,장기육,박준철,이수영,홍순조,최규보 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.8

분산메모리형 병렬컴퓨터에서의 실행을 위한 대기화학확산모델의 병렬화

임미숙,최효순,김영태 국립7개대학공동논문집간행위원회 2004 공업기술연구 Vol.4 No.-

We parallellized Air-Chemistry Diffusion Model for distributed memory parallel computers. To parallelize the model, we used HPCL(High Performance Computing Library) which calls MPI (Message Passing Interface), a standard library to support routines for message passing. We described the parallelization of the model and presented performance analysis of the parallel model. Performance results were determined on the PC cluster.

한국전통생활문화에 관한 고찰

이숙,홍윤호,신윤숙,신효식,한경미,최정미,김은정 全南大學校家政科學硏究所 2002 生活科學硏究 Vol.12 No.-

This study is objected on preliminary research for more scientific and wider studies on the Traditional Living Culture of Korea. For this purpose, studies about clothing, food, home management, Traditional Living Culture were reviewed and analysed. The results were as follows : First, Clothing culture studies concentrated on ritual clothings, Second, Food Culture studies included history of traditional food development and recipes. Third, in the field of home management value system, attitudes and parent-child relations were studied,

TGA 방법을 이용한 플라스틱과 하수·분뇨슬러지의 열분해 반응속도 연구

윤효숙,최성필,김성탁,원양수,신부영 嶺南大學校 環境問題硏究所 1997 環境硏究 Vol.16 No.2

요약문 도시 고형폐기물의 열분해 특성에 대한 기초 자료를 제시하고자 열중량분석기를 이용하여 가열속도를 실험변수로 하여 하수 및 분뇨슬러지와 5대 범용 플라스틱인 LDPE, HDPE, PP, PS 와 PVC의 열분해 반응속도인자 및 분해특성을 파악하였다. 활성화에너지는 가열속도에 상관없이 일정한 값을 나타내었으며 분해속도가 최고일때의 온도는 가열속도가 증가함에 따라 증가하였다. LDPE, HDPE, PP와 PS는 1단계 분해반응으로 350∼520 ℃에서 대부분이 완전분해되었으며, PVC는 2단계 분해반응으로 250∼550 ℃에서 분해가 진행되었다. 슬러지는 여러 단계의 분해반응으로 특정한 분해구간이 없이 전구간에 걸쳐서 분해가 진행되었다. PVC를 제외한 플라스틱은 완전분해되었으며, PVC는 약 10%의 잔류량이 있었고, 슬러지의 잔류량은 D 하수, S 하수, T 분뇨 슬러지의 순으로 43, 70, 28.5%를 나타내었다.Abstract The thermal decomposition of sewage/night soil sludge and LDPE, HDPE, PP, PS and PVC was studied by using a conventional dynamic thermogravimetric analyzer (TGA) in a flowing nitrogen environment at several heating rates between 5 ℃ and 40 ℃/min. The dynamic thermogravimetric analysis curve was analyzed to obtain the information on the kinetic parameters such as activation energy, reaction order, and Arrhenius preexponential factor. The activation energy keeps constant regardless of heating rates, and the temperature of he fastest decomposition increases with the heating rate. LDPE, HDPE, PP and PS were completely decomposed in the temperature range of 350∼520 ℃ including as the first step decomposition and PVC was decomposed in the temperature range of 250∼550 ℃ including the second step decomposition. Sludge was decomposed without specific temperature range as several decomposition step. Except of PVC, all plastics were decomposed completely. PVC keeps the remains of about 10%, and sludge keeps the remains of 43% for D sewage sludge, 70% for S sewage sludge, 28.5% for T night soil sludge.

의복스타일과 색이 신체이미지 지각에 미치는 영향

김효숙,최창석,이은실 대한가정학회 2003 Family and Environment Research Vol.41 No.9

The purpose of this study was to examine the effect of dothing colors, dothing styles on women's body image perception. The experimental design was 2 x 2 x 9(perceiver's gender x clothing styles x clothing colors) factorial design with between-subjects design. Subjects were 320 college students in the metropolitan area of Seoul. Perceiver's gender, clothing styles, and clothii colors gave a significant influence on the 3 variables of shoulder, the upper half of the body, and bust. Shoulder and the upper half of the body had an interaction effect by clothing styles and clothing color. Perceiver s gender gave a significant influence on hip size, length of leg, height, clothing styles did a significant influence on hip size, length of leg, height, and slender figure. Clothing colors gave a significant influence on length of leg, height, and slender figure. Length of leg and slender figure had an interaction effect by perceiver s gender and clothing styles. Hip size had an interaction effect by perceiver s gender and clothing color. Hip size had an interaction effect by clothing styles and clothing color. The results of this study support that coloration of clothing and clothing style affects perception of stimulus persons wearing apparel.

일반인의 환경문제 의식과 사회환경교육의 필요성에 관한 연구

허명,최돈형,박소현,성효현,박석순,남상준,이숙임 이화여자대학교 환경문제연구소 1998 이화환경연구 Vol.2 No.-

Today, the gobal community is confront serious environmental crisis derived from related problems energy and resources. To deal this crisis, people must take action in order to preserve current environment with ecological understanding of the relationship between human and environment. The principle of this thesis is to observe public endeavor toward environmental education program, environmental perception and environmental preservation behavior, and the influential factors to those conducts. First of all, we will look into the perception toward environmental deterioration, environmental perception, environmental preservation behavior which thought to be a ground solution to lesson the problems, and then the environmental education program. In accordance with those research, it will be presented the feasible directions of environmental education program for general public. This research consists of 10 topics. The topics are the interests of public about environmental problem, perceived pollution level, general knowledge about environment, perception related to environmental problem, opinions about the environmental education program, attitude towards environmental organization, suggestions for future environmental education program, and campaign for environmental preservation. Through the research, we have reached some analytical conclusions are followed: First, the level of public concerns about environmental problems is high regardless its age and sex, and the level has been growing compared to the past one. The result also shows that people in urban and industrial areas feel much more seriously pollution problems than those in rural and coastal areas. In addition, according to the survey result, household and industrial sewage are regarded as the primary causes for water pollution. Secondly, the results show general public's understanding on environment have been universalized and thus the level of common knowledge on global environment has been increased, as environmental problems have been raised by newspapers and mass medias and various movements have been accomplished by environmental protection organizations. Thirdly, although the necessity of environmental education was emphasized the purpose of environmental education was unclearly appeared. Furthermore, actual participation to the environmental education program and taking courses by joining environmental organizations were rarely shown. Although some cases have the experience of taking education courses, the negative reactions came out in the opinion of education content and methodologies. Fourthly, the analysis on curriculum of future environmental education show various opinions. The attentions have drawn on the dealings of waste industrial and chemical waste which will cause environmental problem artificially, as well as on global environment, or natural environment such as resources, land, water, atmosphere. The results show many people recognized administration extent such as environmental policy, law and ethics as environmental categories. This implies the curriculum of those areas have not been properly founded and further researches should be followed. From above results, environmental problems should not be regarded as simple problems and it should bring out new recognition for general public in everyday life. In addition, environmental education courses, with practical environmental preservation should be developed and programs and organization which will utilize those educational materials should be more activated.

환경교육을 위한 웹 기반 프로젝트 학습 시스템의 설계 및 구현

전우천,정효숙,김동용,엄종진,정성모,최수경 서울교육대학교 2001 한국초등교육 Vol.12 No.2

The use of the Web (World Wide Web) has been changing roles of traditional education style. Especially, the Web can overcome time and space limitations in the traditional schools. Teachers and students are now using the Web to access vast amounts of information and resources on cyber space. Also, the learning via the Web enables both synchronous and asynchronous communication. Despite of many benefits of the Web, it may weaken students motivation due to lack of face-to-face communication. In this paper, we provide a learning model called Web Project Learning, which is based on the contructivism, to provide motivation and collaborative learning for students in the Web environment. The model is based on the Project-Based Learning model and is revised for use in the Web. The model can also encourage the participation of parents as well as students, and be applied to any subject. We implement our model and show that the model can be used for environmental education as an instance.