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조재립(Jai Rip Cho) 한국품질경영학회 2001 품질혁신 Vol.2 No.2
This paper is focused on recognizing the environment potential in the atomsphere and providing the basic requirements on application of environment impact assessment techniques for globle warming. The relationship between trends and environment impact assessment is considered the following three view points: First, the characteristics understanding of environment problems for global warming. Second, the weighted problems which are made from confliction, complementation, long term effectiveness, and different occurrences. Third, the approach difficulties to the problems due to the security and limitations on public properties. The environmental impact assessment techniques are analyzed with the following aspects: The evaluation of the greenhouse effect, the priority on human health, air quality, cooperation between acid rain and smog, international and local governments. It is concluded that to meet the environment problems in present and future, specific environment countermeasures are prepared and environmentally related techniques for greenhouse effect should be developed.
조재립,Cho, Jai-Rip 한국품질경영학회 1995 품질경영학회지 Vol.23 No.4
In recent years, the safety of customers and the demand for rights to be protected from the risk have become stronger than ever day by day, and the function concerning product liability(PL) and quality assurance(QA) has been emphasized. Basically these functions can be obtained by inspection and there is the single rectifying sampling inspection for attribute (KSA-3105) as an existing method. But we can not say this method is good enough because of limitations in the range of applications and the approximate design of inspection methods which can not meet the rapidity and accuracy of quality information transfer according to the maturity of information period. Therefore, in this paper, a new algorithm is developed which can design the accurate inspection method by using the linear cost function that has not been considered in the existing inspection methods. Also in addition to this, a optimal rectifying sampling inspection plan, contributing to minimize the total costs, can be developed by programming the algorithm developed in this study and it can be applied to any field having many processes almost limitlessly.
자동차 전장부품의 초 가속 실뇌성 수명시험 방법에 관한 연구
이종범,조재립,Lee, Jong-Beom,Cho, Jai-Rip 한국품질경영학회 2000 품질경영학회지 Vol.28 No.4
Recently days, High Accelerated Life Test of electrical and electronic parts is increasing its importance. This study set the hypothesis to develop the method that was analysis and application of HALT for the automotive electrical and electronic parts, it used Arrhenius's Model and Eyring's Model, and ESS theory. Validity of application is proved by other test data. Especially, this study emphasis on utility of acceleration to temperature, humidity, voltage, mechanical stress and other stress. In this study set the pattem of practical application. Therefore, this study emphasis on the application of the HALT and the use of other parameter by acceleration reliability test data. The result of this study is as follows. 1) There is relationship between molar weight and material constant. 2) Characteristic of material is operating acceleration factor as well as parts failure factors. Of course, according to the characteristic of material, activation energy is often more important than molar weight. But it will be defined by more testing and improvements in practical application.