• Journal of Korean Society of Transportation
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• v.19 no.1
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• pp.149-157
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• 2001

내부순환로 교통관리시스템은 기존의 국내 교통 시스템들과는 달리 충분한 수집체계와 정보제공 체계를 갖추고 있으며, 전략의 구체화와 현실적 실현, 즉 전략의 시스템화를 위해 많은 노력을 기울였다. 그런 노력의 일환으로 이 시스템에서는 다양하고 복잡한 돌발상황을 단순화하고 일반화하기 위해 Uniform Event Reaction Formula라 하는 개념을 사용하였다. 이 개념은 어떤 돌발상황이 발생하면 이로 인해 영향을 받는 반응 영역과 영향을 받지 않는 비반응 영역으로 분리한 후, 반응 영역은 예측을 통한 제어 관리를 수행하고, 비반응 영역은 통상적인 제어 관리만을 수행함을 의미한다. 그러나, 돌발상황에 따른 반응 영역과 비반응 영역의 결정에 필요한 돌발상황 처리시간 예측과 대기행렬 예측 모형은 내부순환로의 도로 및 교통환경에 적합한지 검증되지 않아 많은 시행착오가 예상된다. 특히, 돌발상황의 처리시간 예측은 동질대응 구간 결정의 가장 중요한 요소로서, 현재는 처리시간에 상당한 여유를 두어 운영할 계획이지만 궁극적으로는 내부순환로에 적합한 처리시간 예측 모형의 개발이 필요할 것으로 판단된다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.21-23
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• 2015

Scala의 파서 콤비네이터를 사용하면 프로그래밍 언어의 파서를 비교적 손쉽게 구현할 수 있다. 그런데 Scala의 파서 콤비네이터는 몇 가지 문제점이 있다. 첫째, 파싱을 할 때마다 파서를 생성해야 하는 온라인 방식이라 처리속도가 늦을 수밖에 없다. 둘째, 하향식 파서라 좌 재귀 문법을 처리하지 못하는 문제가 있다. 따라서 좌 재귀가 없도록 문법을 작성해야한다. 본 논문에서는 위의 문제들을 해결하기 위해 파서 콤비네이터의 장점인 직관적인 문법정의와 LALR(1)의 문법 표현력을 결합한 LALR(1) 파스테이블 생성 콤비네이터를 정의한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.1247-1250
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• 2012

기존 방법은 Cockburn의 Goal 지향 유스케이스 방법[7]을 이용하여 고객 요구사항을 추출하는 방법을 제안하였다[2]. 그런 방법은 개발자 관점 요구사항으로 사용자의 요구를 충족시키기가 어렵다. 그래서 이 논문에서는 사용자 중심의 소프트웨어 개발 방법론[1,3,4,6]을 적용하여 사용자의 니즈(Needs)에 맞는 사용자 선호도 요구사항을 찾고자 한다. 이러한 요구사항의 Goal 중요도를 측정하여 우선순위를 도출한다. 이는 사용자의 니즈에 맞는 요구사항 결정과 테스트 케이스의 우선순위화가 가능하다. 사례연구로 U-Home 안에서 실내온도 조절에 관한 사용자의 요구를 분석하였다[1].

• The Journal of Korean Philosophical History
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• no.28
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• pp.61-85
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• 2010

This is about studying on the environmental ethics of Taoism mainly based on Taoism's Bioautonomous. Taoism is the most comprehensive thought in the traditional thoughts of East Asia. According to Taoism, every individual bio has its own intrinsic value having nothing to do with the value estimated by human beings since it has Daoxing. Human beings, however, have their own bioautonomous which is different from other individual bio. In Taoism human beings are independent for their lives. They do not depend on nature, but they can control themselves. That is to say, their lives depend not on god but on their own wills. The human beings' bioautonomous includes two different meanings: one is that human beings can use other individual bio as a tool for their eternal youth, and the other is that human beings are the main character of realizing the intrinsic value of universal bio and bringing harmony into each individual bio. In Taoism the harmony of universal bio is considered as the top value. Realizing the value of human beings is based on keeping harmonious order of universal bio and realizing the value of other individual bio. the environmental ethics of Taoism is not Biocentrism. Biocentrism argues that each individual bio has teleological center of life, which pursues its own good in its own way, and possesses equal members of Earth's community. As a result, human beings role and responsibility was reduced. But Taoism insists on human beings' bioautonomous. And human beings should be responsible for universal bio's harmony. Therefore the environmental ethics of Taoism is not Biocentrism but Bioautonomous. Bioautonomous environmental ethics of Taoism insists on human beings should be responsible being in relation with other living beings. Because of this point, it can be a theory of biorecovery.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.39 no.1
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• pp.61-69
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• 2002

Active stereo vision system allows us to localize a target object by passing only the features of small disparities without heavy computation for identifying the target. This simple method, however, is not applicable to the situations where a distracting background is included or the target and other objects are located on the zero disparity area simultaneously To alleviate these problems, we combined filtering with foveation which employs high resolution in the center of the visual field and suppresses the periphery which is usually less interesting. We adopted an image pyramid or log-polar transformation for foveated imaging representation. We also extracted the stereo disparity of the target by using projection to keep the stereo disparity small during tracking. Our experiments show that log-polar transformation is superior to either an image pyramid or traditional method in separating a target from the distracting background and fairly enhances the tracking performance.

• KOMUNHWA
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• no.56
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• pp.247-261
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• 2000

In regard to the political status of Cheju during Kory$\u{o}$ Dynasty, it has been broadly discussed and accepted that Cheju had remained independent or semi-independent as a feudal nation until the 10th year(l105) of the reign of Sukjong(肅宗) o

• Journal of KIISE
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• v.43 no.9
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• pp.998-1007
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• 2016

In recent years, the cost of automotive ECU (Electronic Control Unit) has accounted for more than 30% of total car production cost. However, the complexity of testing and debugging an automotive ECU is increasing because automobile manufacturers outsource automotive ECU production. Therefore, a large amount of cost and time are spent to localize faults during testing an automotive ECU. In order to solve these problems, we propose a fault localization method in memory for developers who run the integration testing of automotive ECU. In this method, memory is partitioned by utilizing memory map, and fault-suspiciousness for each partition is calculated by utilizing memory update information. Then, the fault-suspicious region for partitions is decided based on calculated fault-suspiciousness. The preliminary result indicated that the proposed method reduced the fault-suspicious region to 15.01(%) of memory size.

• Nuclear Engineering and Technology
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• v.21 no.3
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• pp.171-185
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• 1989

On the basis of equal health hazard risk, economic assessment of nuclear was compared with that of coal for the expansion planning of electric power generation in the year 2000. In comparing health risks, the risk of coal was roughly ten times higher than that of nuclear according to various previous risk assessments of energy system. The zero risk condition can never be achievable. Therefore, only excess relative health risk of coal over nuclear was considered as social cost. The social cost of health risk was estimated by calculation of mortality and morbidity costs. Mortality cost was ＄250,000 and morbidity cost was ＄90,000 in the year 2000.(1986US＄) Through Cost/Benefit Analysis, the optimal emission standards of coal-fired power generation were predicted. These were obtained at the point of least social cost for power generation. In the year 2000, the optimal emission standard of SOx was analyzed as 165ppm for coal-fired power plants in Korea. From this assessment, economic comparison of nuclear and coal in the year 2000 showed that nuclear would be more economical than coal, whereas uncertainty of future power generation cost of nuclear would be larger than that of coal.

• Journal of the Korean Data and Information Science Society
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• v.26 no.6
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• pp.1353-1366
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• 2015

These days Shewhart control chart for evaluating stability of the process is widely used in various field. But it must follow strict assumption of distribution. In real-life problems, this assumption is often violated when many quality characteristics follow non-normal distribution. Moreover, it is more serious in multivariate quality characteristics. To overcome this problem, many researchers have studied the non-parametric control charts. Recently, SVDD (Support Vector Data Description) control chart based on RBF (Radial Basis Function) Kernel, which is called K-chart, determines description of data region on in-control process and is used in various field. But it is important to select kernel parameter or etc. in order to apply the K-chart and they must be predetermined. For this, many researchers use grid search for optimizing parameters. But it has some problems such as selecting search range, calculating cost and time, etc. In this paper, we research the efficiency of selecting parameter regions as data structure vary via simulation study and propose a new method for determining parameters so that it can be easily used and discuss a robust choice of parameters for various data structures. In addition, we apply it on the real example and evaluate its performance.

• Journal of the Korean association of regional geographers
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• v.19 no.2
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• pp.259-281
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• 2013

This research aims to analyze Baekdu mountain are with it's the east flowing streams which are the issues on the old maps. Also, it will analyze the eastern flows, Tomoon river; Boongye river; Dooman river, from Baekdu mountain which have been the border settlement issues since Josun dynasty. Also, it will analyze the north-eastern flows, Heukryong river; Songhwa river; Sockpyung river; Tomoon river; Boongye river; Dooman river, from Baekdu mountain which have been the border settlement issues since Josun dynasty. The mainly issued Baekdu mountain's north-eastern flows can be classified into six different flows by the classifications, it proves that there are various Baekdu mountain north-eastern flows on the old maps. the two streams theory of Tomoon and Doman river explains the perspective of the northern expansion, and the one stream theory expresses it by stating Boongye and Sockpyung river as the same one. However, in the case of the meaning of Boongye river is Haeran river on the middle of one stream theory map, there is no region expanding perspective but the same border perspective that Korean peninsula and China match. Boongye river is expressed into four different meanings. (1) It is the same river with Sockpyung and shows the regional expanding perception. (2) It is the same river with Tomoon and the down stream of Tomoon river.(3) It expresses the current name, Haeran river. (4) It simply means the river shows the boundary.