• 한국경영과학회지
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• 제37권4호
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• pp.153-160
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• 2012

This study investigates how discrete choice analysis can be applied to health care operations. Discrete choice analysis helps to understand the complex decision-making process of purchasing expensive medical equipments by identifying relative weights that decision makers impose on each attribute through simple virtual choice experiments. We also verified the usefulness of applying discrete choice analysis to the purchase of medical equipments with empirical evidence.

• 대한전기학회논문지:전력기술부문A
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• 제54권11호
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• pp.557-560
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• 2005

This paper proposes the demand-side management(DSM) monitoring system of high efficient end-use equipments considering demand-side bidding (DSB). The effect on the market penetration of high efficient equipments by demand side bidding is analysed. Seasonal peak demand forecasting and penetration capacity of these equipments . are analysed.

• 기술혁신학회지
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• 제19권2호
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• pp.358-394
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• 2016

이 연구는 연구장비 공동활용 정책의 꾸준한 시행에도 불구하고 저조한 공동활용의 원인이 정책집행이 현장관료 또는 정책대상자의 입장에서가 아니라 정책결정자의 시각에서 이루어져 왔다는 문제의식에서 시작하고 있다. 따라서 이 연구는 정책집행의 상향적 접근법에서 기초연구사업을 수행하는 현장 연구자들과 장비 관리자들을 대상으로 연구장비 공동활용의 현황을 분석하였다. 분석결과는 공동활용에 대한 연구 책임자들의 중요성 인식이 여전히 낮은 편이며, 실제의 공동활용 과정에서는 필요한 집행자원이 부족하며, 공동활용의 지속성을 확보하기 위한 일상적인 관리단계에서의 유인책도 충분하지 못한 것으로 나타나고 있다. 이에 따라 기초연구사업에서의 연구장비 공동활용을 증진하기 위한 정책대안을 관리단계별로 정책집행의 상향적 관점에서 유인도구와 정보도구 중심의 정책수단 도구들을 개발 논의하고자 노력하였다.

• 대한방사선기술학회지:방사선기술과학
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• 제18권2호
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• pp.61-73
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• 1995

For the managements of the diagnostic X-ray equipments, the authors examined the output of single phase rectification assembly, Three phase rectification assembly and serial radiographic appartus, and got the following conclusions. 1. When the tube voltages in X-ray control panels ware compared to the measured values on the kVp pulse meter, only little differences were detected in all the X-ray equipments. And most of the equipments were all well managed within the internationally permitted limits, excepting the 12.02 % error at 120 kVp in three phase rectifying assembly. 2. As for the X-ray qualities affecting the X-ray images, the serial radiographic apparatus showed excellence, while the single phase rectification assembly were somewhat inferior to the others only maining the internationally recommended limits. 3. The tube voltage ranges where the X-ray output showed excellence were $100{\sim}200\;mA$ in serial radiographic apparatus, $200{\sim}350\;mA$ in three phase rectification assembly and $350{\sim}400\;mA$ in single phase rectification assembly respectively. 4. In the repeatability test of the X-ray equipments, CVs were in the range of $0.0029{\sim}0.049$, which is within the HEW or KS standards. Consequently all the equipments are thought to be well-manage. 5. This study on characteristics and output of the X-ray equipments was accomplished within a limited short time. Long-time researches on the function managements for the X-ray equipments should be followed along with the periodical checking the output for reduction of X-ray exposures to the patients or radio-technologists, and for maintanance and prediction of trouble of the equipments.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1072_1073
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• 2009

This paper describes the inspection techniques for photovoltaic equipments. Firstly failure case studies on solar cells were presented, and then their FMEA was carried out. Lastly several core techniques as well as the contents by the inspection items on photovoltaic equipments were also expatiated.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2007년도 춘계학술대회
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• pp.449-456
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• 2007

This paper presents system of physical distribution module, and classification of logistics equipments. This study also introduces equipment standards of logistics facilities, and environmental rules for distribution center. Moreover, this paper shows safety standard and marking for logistics equipments and tools.

• 대한방사선기술학회지:방사선기술과학
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• 제7권1호
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• pp.47-52
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• 1984

This paper was performed research for the total filtration in the useful beam of 45 diagnostic x-ray equipments using in Korea. We obtained the following results: 1. A good ability of total filtration was showed in higher than lower maximum permissible rating equipments. 2. In 53 percentage of 45 diagnostic x-ray equipments, the total filtration in the useful x-ray beam was not less than the values given in the Korean industrial standard. This results suggested to user to need the more ability management of diagnostic x-ray equipments using now.

• 조명전기설비학회논문지
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• 제24권12호
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• pp.131-137
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• 2010

This paper considers and suggests the life cycle of the power equipments installed in buildings. The target equipments were divided into 5 groups by a couple of conditions, and a theoretical consideration and domestic foreign case studies were carried out. As a result, the most appropriate life cycles and monitoring periods were suggested for each group. The suggested results are expected to practically help the field electricians determine whether they have to replace the deteriorated equipments or not.

• 한국군사과학기술학회지
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• 제23권2호
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• pp.168-175
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• 2020

Failure of essential avionic equipments have a significant impact on the operations and safety of P-3 maritime patrol aircraft. Therefore, avionic equipments of P-3 are required to have higher reliability. Based on the field failure data, this paper studies the reliability growth of essential avionic equipments in P-3 using Duane model. Additionally, a simulation model is built and implemented for identifying the operational availability according to the field failure data of avionic equipments.

• 전기학회논문지
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• 제56권1호
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• pp.100-105
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• 2007

Signalling equipments at railroad sites are widely exposed to high voltage lightning surges. This paper presents a lightning protection system for the signalling equipments at subway car depots. The main features of the system are as follows : (1)the common grounding system between power system grounds and the signaling system grounds, (2)physical and chemical methods to reduce grounding resistivity, (3)rearrangement of lightning rods based on the rolling bal1 theory, (4)equi-potential bonding networks to minimize the potential differences between the equipments grounds. The system has been constructed at six subway car depots in Seoul metropolitan area and it is measured that the grounding resistivity are reduced to 0.266 ohms and the potential differences between devices are reduced to a negligible quantity. After the construction of the systems, it has not been reported the break-down of the signalling equipments caused by lighting surges.