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복합화력발전소의 발전용수 펌핑시스템의 자동화에 따른 경제적 효과에 관한 연구
元萬根,白壽鉉 동국대학교 산업기술환경대학원 1998 산업기술논총 Vol.4 No.-
Most of the power plant water pumping facilities rely on manual operation. Besides, It is difficult to trouble diagnesis and arrangement and need long time for find out the cause analysis. In this papers, It make use of up to date computer technology and information communicate technology so as to improve and automation of pumping system for power plant water. The automatic equipment of pumping system for power plant water with computer, graphic board, remote terminal unit bring supervisory control and data acquizition system into practice. Therefore, it is obtained the economic effect and good efficiency for manpower reduction.
金秀生,李根善 동아대학교 환경문제연구소 1991 硏究報告 Vol.14 No.1
The study was been investigated and analyzed over two periods, August and October of 1990 for the purpose of examining Eutrophication of artificial lake. As a result of the study, we proved the correlationship between water quality condition depending on depth and season and concentration of nutrient of chlorophyll-a and we examined trophic state of lake. N/P difference, TSI, phosporus model and got Estimation of Environmental Assimilating capacity by permitted load and subtracted load of T-P. 1. The differences of water temperatures at four points according to the depth of water are : We have got a maximum value, 8℃ at HY-4 in the firstperiod and a minimum one, 3℃ at HY-1 in the sencond in August, the first period stablization was found however it was rarely found on the second period. 2. As a result of Estimation at four different depth of water over two periods, we could discover a vigorus of pH, DO, chlorophyll-a. In the first period the maximum surface concentration chlrophyll-a was 28.5㎎/㎥. 3. N/P difference was from 48.8 to 21.7 the average was 30.2 4. The correlationship between nutrient and chlorophyll-a concentration was r=0.78 5. We estimated applying carlson TSI(Trophic state index) Which shows trophic state of the lake and got TSI(CHI)55, TSI(TP)56 mesotrophic state. 6. We have adopted which were developed considering nutrient as limiting factor and obtained the result as follows : Vollenweider Model case Eutrophic state Larsen and Mercier Model case Eutrophic state Dillon Model case Mesotrophic state 7. Evaluating predictable value and real value of model by T-P. We could have the closest approximate value in the case of kirchner/Dillon model.
문수근 한국비쥬얼디자인학회 2001 한국디자인포럼 Vol.6 No.-
Essentially, package is a field that came into being to wrap up and protect products today, the development of package produced the discovery and thedevelopment of materials of package and a lot of techniques for protection and safety of products and package is being studied steadily. That is to say, this vision that people look upon the correlation of products and package only as sealing and protecting has continued long in existence. Modern package means not only this physical function but also up to sales promotion and advertising funtion, espectally in the knowledge_information society like today, qualitative desire of consumers, so with the technology and the products which are equalized, we can't win in a hot competition. In these circumstances, the role of package design is a field that has the strongest intagible added value which an enterprise and a consumer hold in common. But if package is prescribed as a composing factor which has an influence on all fields of sales promotion, circulation and price, package can satisfy both a consumer and an enterprise necessarily only by a marketing activity. In the end, prescribing the marketing activity of the package design lies in communicating the exact information or image about products, which consists in persuading a consumer about the products and making him remember. Besides, only the package of design which has the design strategy conaining decisive suitabillty can play the role to decide the length of life and the position of the product. Therfore, this study is planned to get the ground of the creative thought which can come close to a target market only through a very effective research on identity, image and function of the package as a marketing tool. And the establishment of the strategy and the fulfillment of the package design on an intellectual designer who has creative thought even though he doesn't know throughly mutual knowledge with a person in charge of marketing and a supervision, he must respect them and do his best in not only the establishment of the strategy and the fulfillment of the package design but also the whole rouge of marketing
한국 민간기업 근로여성의 육아휴직활용 패턴 영향요인 연구 : 고용보험 DB 분석을 중심으로
이수영,이근주 梨花女子大學校 社會科學大學 社會科學硏究所 2011 사회과학연구논총 Vol.25 No.-
여성인력의 지속적인 사회 참여가 국가경쟁력 확보에 결정적인 영향을 미친다는 인식의 확산과 함께 결혼, 임신 및 출산 등 여성 인력의 사회 진출에 부정적인 영향을 미쳐왔던 여건들을 개선하기 위한 다양한 정책들이 도입되고 있다. 그 중에서도 대표적인 것으로 육아와 관련된 일·가정 양립의 어려움을 완화하여 여성이 퇴직의 불안 없이 지속적으로 사회 활동을 할 수 있도록 지원해주는 육아휴직제도를 들 수 있다. 육아휴직제도는 도입된지 20년이 지났지만 아직까지도 육아휴직제도가 활발하게 활용되어 정책 본래의 목적을 달성했는가에 대하여는 논란이 있다. 이에 본 연구는 육아휴직제도의 활용에 영향을 미치는 요인을 고용보험 D/B를 분석하여 규명해 보고 있다. 육아휴직 사용여부, 육아휴직 사용기간, 육아휴직 사용 후 복직여부를 종속변수로 하여 각각에 영향을 미치는 요인들을 회귀분석을 활용하여 분석한 결과는 다음과 같다. 우선, 육아휴직의 사용은 직업의 안정성과 경력개발 의지에, 육아휴직 사용기간은 직접양육 의지와 경력개발의지에, 육아휴직 사용 후 복직여부는 직업의 안정성과 직접양육 의지에 가장 큰 영향을 받는 것으로 나타났다. 특히 고용안정이 육아휴직의 사용, 사용기간 및 육아휴직 사용 후 복직 가능성에 결정적 영향을 미치는 것으로 나타났다. 분석 결과는 우리나라 육아휴직제도의 정책의 본래 목적을 달성하기 위한 제도적 개선 등 정책적 시사점을 제공하고 있다. Concerns for national competitiveness and low fertility initiated many government policies and programs intended to improve the working conditions of the women labor force. Parental leave is one of the representative programs that allows women to take care of the family and maintain the employment at the same time. This research tries to understand the factors affecting the usage of parental leaves. The analysis of three regression models with parental leave, the duration of usage, and reinstatement as dependent variables respectively, showed following implications. First, the use of parental leave is mostly affected by the stability of employment and the person’s will of career development. Second, duration of parental leave is influenced by the person’s will of direct bringing and also the will of career development. Finally, reinstatement at the end of the leave is affected by the stability of employment and the will of direct bringing. The stability of employment and career development seem to play important roles in making parental leave decisions. Policy implications are discussed and policy suggestions are made based on the result of the analysis.
운동량변화가 온도변화가 있는 비정상 난류유동장에 미치는 영향
유근종,전원대,김수태 창원대학교 산업기술연구소 2001 産技硏論文集 Vol.15 No.-
In analysis of unsteady turbulent flows with temperature variation, 3 different turbulence models of k-e model, modified k-e model, and Full Reynolds Stress(FRS) model, are applied. 3 Test Cases are selected for verification. These are vertical jet flows with water and sodium, and parallel jet flow with sodium. For overall verification of turbulence models, test cases are analyzed with 2-D and 3-D assumptions. Analysis yields the conclusion that 3-D computation with FRS betters others. However, modified modeling for near wall effect is required to improve its heat transfer characteristic analysis.