• 설비공학논문집
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• 제22권2호
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• pp.112-121
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• 2010

With the global climate changes, a global concerns on building energy uses and $CO_2$ emission to improve the environment friendly has been increasingly growing. To achieve this global goal, the Korea government has been seeking an environment-friendly and sustainable development. As the results, the government started Green Building Certification Criteria system. however the certificate system has still been at the basic stage. To upgrade and advance it's level, it's necessary to identify the current status. This study aims to pick out the items requiring improvement for the Ecology of Education Facilities. We expect that the results of this study will be helpful for the next design works of certificate system.

• 대한안전경영과학회지
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• 제7권3호
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• pp.29-36
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• 2005

This research has been conducted in order to assess the effects on quality management factor of the construction sites. 30 companies abiding by the 'construction industry law' and 32 companies abiding by the 'housing construction promotion law' have been researched in areas of quality-management environment, quality-management understanding, quality-management education on construction field, quality-system and quality-improvement. This construction quality factors are to realized the anticipated results not only quality level's increasing, but also company's confidence, competitiveness. We were able to obtain participations of 62 questionnaire, and derived statistics by means of SPSS/PC version 10.0. In this study, we find the bottleneck factor for promotion and upgrade quality management factor of the construction sites and suggest a way out of difficulties.

• 한국실내디자인학회논문집
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• 제29호
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• pp.112-119
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• 2001

In general, the definition of criticism is making a constructive analysis between good & evil, right & wrong, and beauty & ugliness. Just as the literature, art, music, and architecture welcomes productive criticism in order for further advancement in each professional field, constructive criticism in the field of interior architecture must be activated stance it would be as useful as in other fields to upgrade the level of design quality If the constructive criticism were to be taken properly in the benefit of further advancement in particular design, then the criticism must hale a proper criteria in order to examine and review the design work objectively However, as the design symbolizes cultural interpretation and reaction towards better creativity, we expect design to be mutated in many different directions. As the limit of Interior architecture shares limitless possibilities in today's society, it seems that we need to set up a guidelines of design criticism in order to support the further development of the area of interior architecture.

• 한국가구학회지
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• 제20권5호
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• pp.404-413
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• 2009

The objectives of this study were to identify current problems and to propose alternatives of woodworking education in school. This study was carried out through the literature review. Even though woodworking in school has a lot of merits, it has not been fully established yet. Current problems in school woodworking were identified as the absence of educational philosophy of woodworking, unambiguous education objectives, incongruity of educational contents and hierarchy, inadequate quality of teachers, poor surroundings for practice, lack of ancillary materials for teaching and learning, and the absence of community for interchanging information. It was proposed that educational philosophy of woodworking and concrete education objectives should be set up, educational contents should be organized in a proper level, and surroundings for practice should be improved. And, it was also proposed that teacher education should be made to upgrade qualities of teachers, ancillary materials for teaching and learning should be developed, and community for interchanging information should be set up.

• 한국컴퓨터정보학회논문지
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• 제23권12호
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• pp.115-122
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• 2018

As the proportion of software in weapon systems increases, the impact of software on the overall system is growing. As a result, software quality management becomes important, and related regulations and work manuals for quality assurance activities at each stage in the R & D process are becoming more sophisticated. However, due to the characteristics of the weapon system software that is developed as a customized form for the purpose of a specific mission, there are limits to specifying and definitizing the detailed requirements (upper and lower level) according to various operational concepts during the development process. Due to this, software modification (patch change, shape change due to upgrade, etc.) occurs on account of many defects and performance improvement in the mass production and operation stage after the development is completed. In this study, we analyze the characteristics of these weapon system softwares and propose quality improvement methods based on ISO / IEC / IEEE 29119 test method.

• 국제학술발표논문집
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• The 2th International Conference on Construction Engineering and Project Management
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• pp.376-385
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• 2007

Construction project is necessary element for human life to upgrade the quality and convenience. However, due to its contradictory nature to the environment preservation, environmental pollution and damage, deterioration of natural scenery, noise/vibration, water quality pollution, etc. caused in the process of construction greatly affect the environment. For the building or construction project, its possible impact on environment during construction work and after completion must be predicted at its design phase, which will result in the completion of the architecture convenient for human being with its environmental pollution reduced to minimum level. In this study, the checklist of environmental factors was suggested, which should be taken into account at its design phase in conducting the construction work. Proposed checklist was linked with the developed web-based system for the convenience of users like designer and construction manager, etc. It is expected that the checklist suggested by this study will help the designer and construction manager to continue the steady development from the environmental viewpoint during the design phase.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.649-654
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• 2005

A new law, the Urban and Living Environment Improvement Act, was established, promulgated, and entered into by the Ministry of Construction and Transportation as of 1st July 2003. This system under this law, which improves currently executed consulting process and upgrade its level, is to execute the legal process and procedures that are necessarily required for housing reconstruction/renewal project.. This system requires to be supplemented with addition of reasonable, logical, and systemized tools of system. Through concurrent application of professional management of renewal business(PMRB), more benefit will be provided to housing renewal associations that are constituted with residences concerned for execution of CM project.

• 전기학회논문지
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• 제60권5호
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• pp.1068-1072
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• 2011

Hydrogen Fuel Cell Vehicle(HFCV) is system that uses electrical energy of fuel cell stack to main power source, which is different system with other vehicles that use high-voltage, large-current. Isolation performance of this system which is connected with electrical fire and electrical shock is important point. Isolation resistance of electric installation is divided according to working voltage, it follows criterion more than $100{\Omega}$/VDC (or $500{\Omega}$/VAC) about system operation voltage in a hydrogen fuel cell vehicle. Although measurement of isolation resistance in a hydrogen fuel cell vehicle is two methods, it uses mainly measurement by megger. However, the present isolation resistance measurement system that is optimized to use in electrical facilities is unsuitable for isolation performance estimation of a hydrogen fuel cell vehicle because of limit of maximum short current and difference of measurement resolution. Therefore, this research developed the isolation resistance measurement system so that may be suitable in isolation performance estimation of a hydrogen fuel cell vehicle, verified isolation performance about known resistance by performance verification of laboratory level about developed system, and executed performance verification through comparing results of developed system by performance verification of vehicle level with ones of existing megger. Developed system is judged to aid estimation and upgrade of isolation performance in a hydrogen fuel cell vehicle hereafter.

• 경영과학
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• 제29권3호
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• pp.91-105
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• 2012

This paper examines the investment efficiency of Korean venture capitals during 1987~2006 (20 years), focusing on their selection capability. Despite the Korean government's efforts, venture capital industry has evolved in a slow speed. Since the genesis of venture paradigm in Korea at 1997, venture capital industry as a macro unit has been fully discussed in Korean contexts. But venture capital's activities at micro level regarding each investment's outcome have not been examined. This study attempts to fill the voids of micro knowledge about each investment success rates by venture capitals. We analyzed venture investment records in 4,791 venture startups and their success rates. Their investment criteria were relevant to high potential industries and amount of tangible assets. But their criteria were not relevant to R&D intensity and financial growth of venture firms, which may indicate low level of maturity about Korean venture capital industry. We found that Korean venture capital's investment pattern may be originated from the low return of investment, so that efficiency of IPO markets is a prerequisite for the upgrade of venture capitals' efficiency. Some policy implications are discussed.

• 한국항공우주학회지
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• 제32권9호
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• pp.130-135
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• 2004

본 논문은 국내 최초로 그레인의 형상을 조절하여 설계한 이중추력형 로켓 모터의 개발에 관하여 기술하였다. 저연소속도 저연 추친제의 조성 및 finocyl형 그레인을 이용한 로켓 모터의 설계와 연소시험 데이터의 분석/평가 결과를 상술하였다. 개발된 이중추력형 로켓 모터는 비행시험에 성공적으로 적용되어 유도탄의 성능향상에 크게 기여하였고, 개발 결과는 향후 유사한 로켓 모터의 개발에 유용하게 사용될 것이다.