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裵起雄 大田開放大學 1986 論文集 Vol.4 No.-
This study is concerned with forecasting demand of thermal insulation in Korea. In this study we suggest two multiple regression models for the industrial insulation (1968-1982) and the housing insulation (1975-1982). We attempt to find the important factors that may influece the demand of the thermal insulation. These factors might be the very important information of forecasting demand for thermal insulation in Korea.
裵起雄,李東炯 大田工業大學 1988 한밭대학교 논문집 Vol.5 No.2
We have to be more concerned about the improvement of physical distribution management which is seen in a new light as a treasury of cost curtailment to grow and develop our industries continuously in the rapidly changing economic circumstances. This paper is concentrated on their improvement by analyzing problems of physical distribution management of Korean industries. To improve physical distribution management we should take followings; (ⅰ) Development of unit load system on packing standardization. (ⅱ) Establishment of intermodal transfortation system. (ⅲ) Mechanization of material handling and automation of warehouse equipment. (ⅳ) Introduction of early computer Information system.
초퍼 연산증폭기와 다수의 정합 트랜지스터를 이용한 수중 전기장 센서용 저잡음 전치 증폭기 설계
배기웅,정현주,양창섭,한승환,정상명 한국센서학회 2022 센서학회지 Vol.31 No.2
With advancements in underwater stealth technology for naval vessels, new sensor configurations for detecting targets have been attracting increased attention. Latest underwater mines adopt multiple sensor configurations that include electric field sensors to detect targets and to help acquire accurate ignition time. An underwater electric field sensor consists of a pair of electrodes, signal processing unit, and preamplifier. For detecting underwater electric fields, the preamplifier requires low-noise amplification at ultra-low frequency bands. In this paper, the specific requirements for low-noise preamplifiers are discussed along with the experimental results of various setups of matched transistors and chopper stabilized operational amplifiers. The results showed that noise characteristics at ultra-low frequency bands were affected significantly by the voltage noise density of the chopper amplifier and the number of matched transistors used for differential amplification. The fabricated preamplifier was operated within normal design parameters, which was verified by testing its gain, phase, and linearity.
裵起雄 大田開放大學 1985 論文集 Vol.3 No.-
A characteristic of modern Industry Is the use of so many equipments, and the Investment of its equipments is going on getting larger. If we consider it from the equipment side, not only the enlargement of its size but also the advance of its function and the efficient utility which contain the automated and the computerized have been developing. The rationalization of the scientific plant engineering is the most important problem to solve, because a big amount of capital is fixed for a long-term and It also influences the characteristic and profit of the enterprise. This study has a important purpose that is the most efficient use of the skill for equipments should be proposed importantly according to the ideal of a enterprise, what is the present situation of the domestic enterprises plant engineering by the concept of equipment life cycle and the study has done for the suggestion of good plant engineering at the point of terotechnology, which it can enhance the productivity and profit of the enterprise according to the ideal of it for the service toward society.