• 대한안전경영과학회지
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• 제6권3호
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• pp.275-285
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• 2004

This paper aims to construct an effective decision making model on selection of product design in product development using fuzzy AHP technique. It is expected that this paper contributes to enhancement of company's market competitiveness by shortening the lead time to develop a new product and minimize initial investment. The proposed model using fuzzy AHP enables quick decision making by integrating and analyzing all customer requirements related to a product. In addition, it can deal with vagueness and uncertainty of decision making process using fuzzy set theory. Decision making processes for evaluating the best selection of product design are also constructed to describe the exact concept of development. A tennis racket is shown as an example. The proposed model is expected to be applied in various fields of managerial decision making processes as well as of product development process.

• 한국유기농업학회지
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• 제19권spc호
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• pp.92-95
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• 2011

The initial investment of rice cultivation by mechanical technique was high. This was only due to the cost of planting machine. We analysed the overall cost (without machine cost) and benefits of the two methods, it manifested that the mechanical method is very much beneficial over traditional rice cultivation technique. We observed that the requirement of soil, irrigation water, number of seeds etc. decreased in mechanical cultivation technique while net income increase by 13.07% with 80% government subsidy. Furthermore, the initial rooting was quicker, growth and development of pot raised seedlings was better than the traditional technique. Hence, this technique can give better return to the farmers with the help of government subsidy.

• 벤처창업연구
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• 제12권3호
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• pp.191-202
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• 2017

코넥스시장은 초기 중소, 벤처기업들이 거래소시장에 주식을 상장할 수 있게 함으로써 과다한 부채를 부담하지 않으면서 필요한 자금을 조달할 수 있게 하는 통로이다. 본 연구는 코넥스시장의 주요 제도들을 설명하고 이와 관련하여 그동안 꾸준히 시도해온 시장활성화 대책들의 효과를 분석하였다. 코넥스시장의 활성화를 위한 첫 번째 대책으로서 단일가매매를 접속매매로 변경한 조치의 경우에, 정보비대칭 개선 효과가 있는 것으로 나타났다. 두 번째, 투자위험 감당능력이 낮은 투자자의 시장진입을 제한하는 제도인 기본예탁금 요구수준을 기존의 3억 원에서 1억 원으로 낮춘 조치의 결과로 시장유동성이 현저히 향상되었고 시장참여자의 수가 증가했다. 마지막으로, 소액투자전용계좌 도입 조치는 개인투자자의 시장참여 정도를 높였으나 시장유동성 및 정보비대칭 개선으로 이어지지 않은 것으로 나타났다. 분석결과를 종합할 때, 투자자범위제한 축소 조치를 통해 다양한 투자자의 활발한 시장 참여를 유도하는 것이 조속한 시장활성화에 가장 효과적인 한편, 소액투자자 증가에 대비하여 상장주식에 대한 정보생성 통로를 강화함으로써 정보비대칭을 완화하는 것이 장기적으로 창업기업의 직접금융시장에서의 조달비중 확대를 꾀할 수 있는 방안임을 시사한다.

• 한국중재학회지:중재연구
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• 제22권2호
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• pp.103-124
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• 2012

Because the Korea-U.S. Free Trade Agreement (Korea-U.S. FTA) and the North American Free Trade Agreement (NAFTA) have an overlapping contracting party, the United States, their provisions have much in common. The investment chapters of these agreements, especially, show many similarities, and thanks to these similarities, it is likely that the Korea-U.S. FTA arbitration tribunal for investor-state disputes regarding the environment will put great weight on the NAFTA tribunals' interpretations of those similar provisions. Since the NAFTA tribunals have already handled many environment-related arbitration cases, their interpretations will help heighten the predictability of environment-related Korea-U.S. FTA arbitration cases. This paper analyzes the environment-related NAFTA cases in which the tribunal has issued an award, which are the Metalclad case, S.D. Myers case, Waste Management case, Methanex case, Glamis Gold case, and Chemtura case. According to this analysis, the most controversial NAFTA provisions have been Article 1102 (national treatment), Article 1105 (minimum treatment standard, fair and equitable treatment), and Article 1110 (expropriation). The NAFTA tribunals applied the requirement of these articles in a strict manner, reducing the possibility of finding a violation. After the aforementioned analysis, this paper proceeds to compare the national treatment, minimum treatment standard (fair and equitable treatment), and expropriation provisions of the Korea-U.S. FTA and NAFTA and to predict the impact that the environment-related awards under NAFTA can have on environment-related Korea-U.S. FTA cases. It is expected that the NAFTA interpretations of the national treatment and minimum treatment provisions are likely be used as they are, but not the interpretations of expropriation, because of the differences in the expropriation provisions of the two agreements.

• 한국작물학회지
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• 제26권4호
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• pp.311-317
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• 1981

우리나라 맥류재배의 감퇴원인이 노동생산성의 저조에 있다는 전제하에서 많은 연구자들에 의하여 시도되고 있는 수종의 파종(재배)양식들을 동특에 공시하여 양식자체가 보유하고 있는 수량생산성과 또한 이들 양식이 요구하는 투하노동의 크기를 파악하고저 하였다. 또한 기계화가 가능한 상태에서의 노동투하요구도를 양식별로 추정함으로써 생력화 단계를 설정키 위하여 일연의 시험을 수행하였던 바 다음과 같은 몇가지 결론을 얻었다. 1. 부정지 파종보다는 정지파종이 월동전의 수수확보에 유리하고, 산파보다는 조파가 월동후의 생육에 유리하었으며, 다조파는 이들 모든 유리성을 겸비함으로써 높은 수량성을 나타내는 경향이었다. 2. 파종(재배)양식 자체의 투하노동 요구도는 대부분의 양식들에 있어서 표준의 관행정지파 양식보다 생력화되는 경향이 없었으며, 다만 기계화에 의한 인력의 대치를 목적으로 발위된 것으로 판단되었다. 3. 작업의 기계화가 가능하다는 전제하에서의 재배양식별 노동투부요구도는 다주용파와 부정지산파를 제외한 대부분의 재배양식에서 표준의 관행정지파보다 생력화 효과를 인정할 수 있었다. 4. 다주용파는 수량향상에 의하여, 그리고 부정지산파는 작업의 조방화에 의한 생력효과 때문에 시도된 것으로 보이며, 5. 노동투하시간에 대한 수량생산성의 비율, 즉 노동생산성을 산출한 결과 현재와 같은 인축 및 소형경운기 위주의 노동으로는 관행정지파나 광파정지파가 유리하고, 일관된 기계영농이 가능할 경우에는 다양파나 전면전층파가 유리한 양식인 것으로 인정되었다.

• Journal of Preventive Medicine and Public Health
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• 제23권3호
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• pp.285-295
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• 1990

The utilization of medical care services has been partly regionalized with the implementation of referral requirement by the government since July 1, 1989 when the health insurance coverage was extended to all the people. For the purpose of regionalization, the whole country has been primarily divided into tertiary care regions, and each of them again into secondary care regions. This study investigates the self-sufficiency for in-patient care services of secondary care regions focusing on why it varies among the regions. In doing so, analysis is performed to examine a model which embodies three sets of hypotheses as follows : 1) The regional self-sufficiency for medical care services would be subject to direct influences of regional characteristics, amount of available services and structural properties of regional medical care system ; 2) The regional characteristics would have indirect effects on the self-sufficiency which are mediated by medical care services ; and 3) The amount of available services would indirectly affect the self-sufficiency by influencing the structure of regional medical care system. The results of analysis were generally consistent with the model. The findings have some practical implications. The regional self-sufficiency for medical care services partly depends upon basic properties of each region which cannot be changed in a short period of time. Thus the self-sufficiency for medical care services can be improved mainly by health policy measures. In some of the regions the self-sufficiency for in-patient care services was much higher or lower than can be predicted from the bed-population ratio. Indication is that the allocation of health resources should be made considering a variety of factors bearing upon the supply of and demand for health care ; not on the basis of just a single criterion like the availability. The self-sufficiency of a certain region is related to not only its own characterstics but also the characteristics of neighboring regions. Therefore, attention should be also directed to the inter-regional relationships in health care when the needs for investment of health resources in a region are assessed. However, it should be noted that this study used the data collected before the referral requirement was imposed. A replication of this analysis using recent data would provide an evaluation of the impact on the self-sufficiency of the referral requirement as well as a confirmation of the findings of this study.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.567-570
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• 2002

우리나라 학교건축은 1990년 중반 이후부터 교육환경의 개선을 위한 시설확충과 노후화된 교육시설물을 유지관리 하기 위한 각종 보수공사의 비용이 증가하고 있다. 교육시설사업을 유지하는 각 주체들간 업무를 수행함에 있어 정보의 분절과 검사방법의 판단기준이 미비하여 한정된 재원의 중복투자 및 낭비를 하고 있다. 따라서 업무절차에 따른 발생정보 및 요구정보를 명확하고 일관되게 제시할 필요성이 제기된다. 학교시설물을 유지 관리 하는 단계에서 이루어지는 업무를 파악하고, 교육청에서 이루어지는 업무를 중심으로 각 기능간 문제점 및 장애요인 분석을 통해 개선프로세스 모델을 제시하고자 한다. 향후 기능간 장애요인 추출을 통한 개선프로세스 모델과 정보 모델구축이 수행되어야 한다.

• 한국산업정보학회논문지
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• 제5권4호
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• pp.67-72
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• 2000

본 논문에서는 산업폐기물인 폐아스콘을 산업자원으로 재활용하기 위해 플랜트 설비면에서는 2중 드라이어 구조를 개발하였고 이 설비를 바탕으로 폐아스콘의 혼합비율에 따른 안전도 및 경제성분석을 실시하였다. 다양한 혼합비율에 따른 연구분석 결과, 폐아스콘 용량이 35%에서 흐름값, 안정도, 공극률, 밀도 및 수분 취약성이 충분한 안전도를 가지는 것으로 나타났다. 다만 간접인장강도가 다소 기준치에 못미치거나 근소한 차이이기 때문에 문제가 되지 않는다고 판단된다. 이 기준에 적합하게 사용될 때 설비투자에 대한 경제성도 있는 것으로 판명되었다.

• Architectural research
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• 제16권3호
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• pp.93-100
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• 2014

Existing BIM(Building Information Modeling) based energy evaluation tools cannot be utilized enough for the potential performance of BIM because most of them have not provided the integrated model for energy evaluation, assessment of the material, cost of the construction, and so on. This research aims to propose and develop a new application, EcoBIM, to support an integrated evaluation of the energy and cost efficiencies of the design alternatives within the design process. The proposed application functions as a BIM-based evaluation system that calculates energy-savings performance as well as the construction cost of the alternatives at the design stage. This study mainly focuses on the possibilities of developing the proposed technology. We also suggest an advanced design process using the proposed system, corresponding to changes of national regulations in Korea. This study deduce that EcoBIM can allow architects to make suitable decisions regarding energy- and cost-efficient designs. The proposed design process will allow architects not only to check the eco-friendly performance of design alternatives but also predict the operation cost in a certain period in the future. EcoBIM can prevent large-scale design changes required to obtain environmental certification and enable the owner to make an informed decision about the initial investment of construction according to the result of the analysis of the energy requirement at the design stage.

• 한국정밀공학회지
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• 제17권7호
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• pp.124-131
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• 2000

Rapid Prototyping(RP) models are no longer used only for design verification. Currently, parts built utilizing layer manufacturing technology can be employed as functional prototypes and as patterns or tools for different manufacturing processes such as vacuum casting, investment casting, injection molding, precise casting and sand casting. This trend of Rapid Prototyping application meets the requirement of concurrent engineering and its range covers a more spreaded area. The aim of this paper is saving the manufacturing lead time and cost of plastic parts having hollow space shapes used by prototype-car. Using rapid prototype patterns, made by the Selective Laser Sintering(SLS) technique, a new approach of manufacturing resin-based blow mold is discussed. It has a great potential fur making prototype-car parts with the batch size of under 200 parts, in case of rapid modification due to a subsequent design changes in developing stage. So, the process proposed in this research shows reduction of process time and manufacturing cost when compared with the conventional process such as a Zinc Alloy fur Stamping(ZAS) mold.