• 한국경영과학회지
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• 제23권4호
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• pp.151-169
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• 1998

Since the atmospheric clearness index is one of the main factors for evaluating atmospheric circumstances, it is necessary to estimate its characteristics all over the cities in Korea. This study was focused on the evaluation of atmospheric condition for each 15 cities in terms of respectively or mutually analyzed clearness factor that was predicted on the assumed clear day with the model using factors such as average global insolation. cloud amount, and duration of sunshine measured for two years between 1996 and 1997. The new clearness index data will be extensively used by atmospheric circumstances analysts as well as by solar application designers or users.

• 수산해양교육연구
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• 제19권3호
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• pp.346-354
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• 2007

Recently, the efficient planning and operations of container terminals have become essential problems to develop the evaluation method with operational rules. Container terminals are required to have enough berths and container yards as well as various equipments and facilities, but in reality there are many differences in their resources owing to the circumstances of each terminal. This study introduces a simulation model for evaluating various operation rules for improving the performance of transshipment container terminal operations. This model can analysis various factors (throughputs, utilizations etc) and shows operational alternative considering design factors of transshipment container terminal with the related circumstances.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1994년도 Proceedings of the Korea Automatic Control Conference, 9th (KACC) ; Taejeon, Korea; 17-20 Oct. 1994
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• pp.271-276
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• 1994

In this paper we deal with a design of CCV adaptive flight control system having adaptive observer under the mircroburst circumstances. First, based on the observerbility indices of the controlled system, which is a general multi-variable one, the adaptive observer is constructed, and the unknown interactor matrix can be estimated by using the identified parameters. Next, CCV adaptive flight control law is calculated based upon the estimated ones. Finally, the proposed CCV adaptive flight controller is applied to STOL flying boat and numerical simulations under the microburst circumstances can be show to justify the proposed scheme.

• KDI Journal of Economic Policy
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• 제23권1_2호
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• pp.5-70
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• 2001

재벌의 은행소유를 반대하는 논거로서 흔히 제시되는 두 가지 이유, 즉 1) 은행이 재벌의 사금고가 될 우려가 있다거나, 2) 산업자본과 은행자본이 결합할 경우 이해상충관계를 악용할 가능성이 있다는 등의 이유는 정상적인 경우 성립하기 힘들다. 이 같은 우려는 이자율규제, 은행채무에 대한 정부의 명시적 암묵적 보증 등 은행에 대한 인위적 규제나 보호에 기인하는 것으로서 은행의 소유주가 누구인가와는 무관한 사항이다. 또한 이 같은 인위적 규제와 보호는 그것 자체가 은행산업의 심각한 파행과 위기를 반복적으로 초래하는 왜곡된 인센티브를 제공하고 있으므로 제거되지 않으면 안 된다. 왜곡된 인센티브 구조가 바로 잡힌다면 은행을 누가 소유해야 하는가의 문제는 무의미한 질문이 되고 말 것이다.

• 한국공간구조학회논문집
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• 제15권3호
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• pp.69-76
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• 2015

Cheomseongdae is the masonry stone structure with the cultural and historical values. But, this structure has the various damages such as cracks, gaps, slope variations and ground subsidence. So, the interests for the safety security in the structural parts have been increased. Therefore, this study performs the structural modelling which considers the several damage cases, and then evaluates the structural behavior characteristics through the discrete element analysis. Especially, this study checks the swelling and displacement gap of the whole structure and the separation between the neighboring members.

• 한국군사과학기술학회지
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• 제12권3호
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• pp.388-395
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• 2009

Surveillance Radar System for naval vessels is a primary core sensor for command and fire control, and provides CFCS(Command and Fire Control System) information for 3-D surveillance and fire control. It's composed of Antenna, Transmitter/Receiver, Signal Processor, and Air drier, which are installed on and under deck. They should be designed and produced in order to endure at any operating circumstances. This paper analyzes load of a driving part for driving the antenna considering factors under external operating circumstances, and proposes a condition of load for maintaining fixed RPM through analyzing internal load of the driving part, and how to reduce the load to meet the condition. This paper is verified through experimental studies.

• 한국통신학회논문지
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• 제18권3호
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• pp.439-448
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• 1993

본 논문의 목적은 Array Signal Processing에서 센서잡음들간의 상관관계가 존재하는 상황, 여러개의 신호원들이 서로 근접해 위치한 상황, 주위 환경의 영향으로 인한 신호대음비(S/N)가 저하되어 있는 상황 등의 특수한 상황들에게서도 고해상도를 가지는 도래방향각 예측방법을 제안한 뒤, 각 상황별로 기존의 방법들과의 비교를 통하여 제안된 방법의 우수성을 보이는데 있다.

• 교육녹색환경연구
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• 제10권2호
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• pp.20-29
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• 2011

The purpose of this study is to suggest a scheme to provide children safer and more comfortable walking circumstances by survey current walking circumstances of schoolzone ways. A scheme suggested in this study was based on the analysis of survey to elementary school in 3 Newtowns(Dongtan, Dongbaek and Gumdan Districts) and actually surveyed data on school zone, the scheme can be summed up as follows; First, to avoid pedestrian roads being interrupted and to expend waiting space near schoolzone ways, several measures are needed including fixing roads and building additional gateway. Second, to secure pedestrians' safety in school zone ways should be planned and established more security concepts und facilities Third, to improve the walking safety in schoolzone way should be established specially "schoolzone B-plan".

• 교육녹색환경연구
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• 제8권2호
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• pp.12-21
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• 2009

The purpose of this study is to suggest a scheme to provide children safer and more comfortable walking circumstances by survey current walking circumstances of school zone ways. First, to avoid pedestrian roads being interrupted and to expand waiting space near school zone ways, several measures are needed including fixing roads, using schools' unemployed spaces and building additional gateway. Second, pedestrian crossings in front of school gate should be located at least 23.16m away from the left side of the gate. Third, on narrow path which cross main streets, the interval of pedestrian signal should be extended as against of the moment. And traffic calming facilities should be built on accurate position. Fourth, to secure pedestrians' safety and field of view, trees lining streets and any obstacles located within 10m from bus stop sign should be removed. Finally, education system about school zone ways should be improved to help children get used to more complicated roads' conditions.

• 한국태양에너지학회 논문집
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• 제22권1호
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• pp.55-65
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• 2002

Since the atmospheric clearness index is one of the main factors for evaluating atmospheric circumstances, it is necessary to estimate its characteristics all over the cities in Korea. This study was focused on the evaluation of atmospheric condition for each 15 cities in terms of respectively or mutually analyzed clearness factor that was predicted on the assumed clear day with the model using factors such as average global insolation, cloud amount, and duration of sunshine measured for two years between 1999 and 2000. The new clearness index data will be extensively used by atmospheric circumstances analysts as well as by solar application designers or users.