• Journal of Korean Electronics
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• v.3 no.10
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• pp.90-98
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• 1983

• Journal of Korean Electronics
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• v.4 no.4
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• pp.154-164
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• 1984

• Journal of Korean Electronics
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• v.2 no.11
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• pp.92-103
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• 1982

• Journal of Korean Electronics
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• v.3 no.12
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• pp.101-109
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• 1983

• Journal of Korean Electronics
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• v.4 no.3
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• pp.165-174
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• 1984

• Journal of Korean Electronics
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• v.2 no.2
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• pp.88-123
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• 1982

• Korean Journal of Human Ecology
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• v.14 no.4
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• pp.693-707
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• 2005

This study investigates the over time changes in the ownership of kitchen items, electric or non-electric, and examines the patterns of the usage and ownership of the items after categorizing them as followings: cooking appliances, kitchen appliances directly related to storing food, food processing kitchen items, and dining items. The research findings are that refrigerators and rice cookers, among the electric items, had spread to almost every households by 1990s and at the same time about thirty non-electric kitchen items had been used. Refrigerators had been used by more than 100% of the households by 2000, and on top of that, twenty or more electric kitchen items such as Kimchi fridge and freezer had been used. In the case of non-electric kitchen items, approximately 50 to 70 sorts of them are used, which indicates an increase than in 1990s. Rice cookers and gas stoves, among cooking appliances, are recognized as the essential item, and they are actually frequently-used items. As to kitchen appliances related to storing food, each household owns one of the refrigerators and Kimchi fridges, and again they are both the frequently-used. As far as food processing kitchen items are concerned, each household owns at least one or more blenders and hand blenders, six or more knives, and five or more pans. Each household owns seventeen or more rice bowls and soup bowls and twenty-four or more plates. Small plates are more frequently used than large ones.

• Fire Science and Engineering
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• v.2 no.2
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• pp.51-58
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• 1988

우리의 일상생활을 보다 편리하게 하여주는 전기기기가 급속히 보급함에 따라 이러한 기기의 수요는 날로 증대하고 있다. 한편 이러한 기기에 의한 전기화재도 기기의 구조와 경년열화, 공사, 작업이나 취급 등 각종 요인에 의해서 발생하고 있다. 여기에서는 우리가 접하게 되는 여러 전기기계기구 중 조명기구에서 백열전구, 가정용 전기기기중 전기다리미, 배선재료 중 전선과 개폐기, 그리고 주거생활이나 사무실 등에서 쓰이는 기기 중 냉난방기기를 대상으로 하여 출화요인과 감식요령에 대한 알아보기로 한다.

• JOURNAL OF ELECTRICAL WORLD
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• no.7 s.127
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• pp.84-88
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• 1987

인버터는 가정용 에어콘이나 형광등 조명기구의 전자전등회로 등 최근에는 우리들 생활주변에까지 응용이 확대되고 있으며 매우 중요한 제어장치이다. 산업분야에서는 전동기 및 전동기 이용장치의 가변속제어 등에 널리 이용되고 있다. 여기서는 단지 직류에서 교류에의 변환장치가 인버터라는 이해에서 그 제어가 어떻게 이용되고 있는지에 대하여 해설한다.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.20 no.5
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• pp.565-572
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• 2007

This paper addresses the kinematic study for the structural analysis of the S60ME-C multi-cylinder vessel engine. The load conditions such as the lateral force and the reaction force by the crank-shaft are required for the FEM analysis. The driving parts in vessel engine are assumed to be in frictionless rigid plane motion. We analytically derive dynamic forces for a single cylinder by using the dynamic force equilibrium. But, for the structural analysis for a single cylinder block, we use the loading conditions of two neighboring cylinders. Meanwhile, we use the single cylinder's loading condition to calculate the multi-cylinder's loading conditions, because each cylinder shows a cyclic loading pattern with respect to the crank arm's rotation angle.