그리드 미들웨어 QoS 최적화를 위한 자원 모니터링 시스템

허용석(Yongsuk Hur),정재일(Jaeil Jung),임홍빈(Hongbin Yim) 한국정보과학회 2003 한국정보과학회 학술발표논문집 Vol.30 No.2Ⅲ

그리드 환경에서 효율적인 자원할당과 QoS를 보장하기 위해서는 먼저 각 자원의 사용가능한 정도를 정확히 파악하여야 한다. 본 논문은 정확한 자원을 측정하기 위한 리소스 모니터링 시스템을 제안하였다. 그리드에서의 모니터링 시스템은 기존의 모니터링 시스템과 차별화 되어있기 때문에 GGF(Global Grid Forum)에서 제안한 자원 측정 요구사항을 수용하여 구현하였다.

수중환경에 적합한 방위각 추적 알고리듬

허용석(Yong Surk Hur),김인익(In Ig Kim),박상배(Sang Bae Park),이균경(Kyun Kyung Lee) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10

Bearing information of target is used critically for target tracking in underwater environment. In passive sonar, target bearing measurements are obtained by processing the acoustic signal emanating from the target. PDA tracking algorithm is usually applied in this case since bearing measurements have several peaks due to interference with other acoustic sources or reflections from underwater media. In this paper, we propose a modified PDA algorithm adopting new probabilistic distributions of the number, position, and amplitude of peaks based on the analysis of real data. This algorithm is tested on real and artificially generated data. The computer simulation result shows improvement of the tracking performance.

수중환경에 적합한 방위각 추적 알고리듬

허용석(Yong Surk Hur),김인익(In Ig Kim),박상배(Sang Bae Park),이균경(Kyun Kyung Lee) 제어로봇시스템학회 1992 제어로봇시스템학회 국내학술대회 논문집 Vol.1 No.1

조세의 초과부담에 대한 선행연구가 주는 함축적 의미

허용석(Yongsuk Hur) 한국조세연구포럼 2012 조세연구 Vol.12 No.3

조세의 부과로 인한 초과부담이란 조세로 인해 자원의 합리적인 배분이 왜곡됨으로써 정부가 징수하는 세액에 추가하여 초래되는 사회적 비용을 말한다. 초과부담 연구방법론에 있어서는 우리나라의 경우 초기 연구를 제외하고는 주로 일반균형모델을 이용하여 분석했고 외국에서는 부분균형모델과 일반균형모델을 비교적 고루 이용되었다. 우리나라 조세제도 전체를 대상으로 한 한계초과부담은 세수 1원당 1.10원으로 비교적 높게 나와 미국의 세수 1달러당 0.4~0.6달러보다 커 보이나 속단하기는 어려워 보인다. 유의미한 결론에 이르기 위해서는 국내에서의 관련 연구가 더 축적될 필요가 있다. 세목별 초과부담은 초과부담이 큰 것에서 작은 것 순(順)으로 우리나라의 경우 개별소비세-자본소득세-근로소득세-일반소비세-수입세 순이었고, 외국에서는 법인?개인소득세-자본소득세-개별소비세-재산세-일반소비세-수입세 순이었다. 큰 흐름에 있어 세목별 초과부담과 관련한 국내외 연구 간에는 차이가 없어 보인다. 자본?법인소득세 등 소득제세의 경우 대체로 한계초과부담이 높았고 소비?재산?수입제세의 경우 초과부담이 상대적으로 낮았다. 효율성측면만 놓고 본다면 소득과세보다는 소비과세, 누진과세보다는 비례과세, 개별소비세보다는 일반소비세의 비중이 커질수록 최적조세에 근접한다고 볼 수 있다. 조세수입을 늘리는 경우에도 세율을 높이는 방안보다는 과세기반을 넓히는 방안이 효율성을 높인다. 나아가 중앙정부재정의 경우 통상 소득제세의 비중이 높고 지방정부재정의 경우 재산제세의 비중이 높은데 각각 소득과세의 비중을 줄이고 재산과세의 비중을 늘릴 때 조세의 효율성을 높일 수 있다. 조세제도를 운용함에 있어 고려되는 두 가지 가치에 형평과 효율이 있는데 현실에 있어 효율만 가지고 조세제도를 운용할 수는 없다. 본 연구는 이런 측면에서 한계를 갖는다. 아울러 초과부담의 크기를 계량화하는 과정에는 분석방법의 선택, 모델의 유형, 변수의 종류, 실증자료에 대한 접근가능여부, 대리지표, 연구대상이 된 세제가 어느 해의 것인지 등 변수가 많기 때문에 본 연구에서 인용된 계량화된 초과부담 그리고 이를 종합한 결과와 의미는 이해와 활용에 있어 충분히 신중할 필요가 있다. The marginal excess burden in Korean taxation system resulted in 1.10. In the mean time, the marginal excess burden in the US taxation system resulted in the range of 0.4~0.5. Even though the marginal excess burden in Korea seemed to be higher than the excess burden in the US, it is difficult to make judgment based on the above result. In order to reach at the more meaningful result on the estimation of excess burden in overall tax system, more research should be conducted for Korean tax system. The excess burden for different type of taxes in Korea as in descending order resulted as excise tax?capital gains tax?individual income tax?general consumption tax?import duties, as to the oversea research resulted in as corporate and individual income tax?capital gains tax?excise tax?property tax?general consumption tax?import duties. From both researches conducted for Korean and foreign tax system, it is observed that there were no significant differences in the results. The excess burden on income tax was relatively high while the excess burden on consumption tax, property tax, etc. were low. Therefore, if more importance is weighted toward consumption tax rather than income tax, proportional taxation rather than progressive taxation and general consumption tax rather than excise tax, the optimal taxation might be reached from efficiency perspective. Should tax revenue be increased, it is preferred broadening tax base instead of increasing applicable tax rates in order to reach to the efficient taxation system. Going forward, since the importance of income tax is higher for central government while property tax has higher importance for local government, the efficiency in taxation system can be reached by putting less weight on income tax and putting more weights on property tax. The two aspects that must be considered in operating taxation system are fairness and efficiency, and the efficiency alone cannot operate the taxation system in realistic manner. From such perspective, this research contains limitation since it only focuses on the efficiency of taxation system. Additionally, quantification of the excess burden depends on variable factors such as methodology of the analysis, types of model used, accessibility to the evidential document, proxy index and etc., and, therefore, the quantified excess burden, the comprehensive result and the implication from this research should be considered with discretion.

현대 건축공간에서 버네큘러 주거 냉방기법의 적용방법에 관한 연구

윤재영(Yoon, Jae-Young),허용석(Hur, Yong-Seok),허범팔(Hur, Bum-Pall) 한국실내디자인학회 2010 한국실내디자인학회논문집 Vol.19 No.3

Recent days, transition to ecological thought is being accelerating by environmental impact with a sustainable development. This symptom is no exception in architecture area. So is vernacular design affecting on modern architecture in many ways in terms of economical aspect and eco-friendly environment as well. Natural energy like solar power, environment, and terrestrial heat that applied in vernacular architecture is also widely accepted in name of ‘sustainable energy’ of which a design applied with ventilation and airing of natural wind is very useful & pragmatic in terms of economical reason. Accordingly, this study examined a relation between vernacular architecture and natural wind and compared it with traditional type and its feature of ventilation & airing. Ventilation & airing applied in the past can be divided into three categories: methods by convection, natural element, and architectural type. All these methods gave some pleasant felling indoors when there were no artificial energies. Even in modem age, such a ventilation & airing is being used with traditional type in different variety of materials, and it will be developed with modem technology without any extra cost in terms of sustainable expansion, and opened for further researches.

현대건축 내ㆍ외부에 나타나는 자연도입 유형에 관한 연구

강희(Kang, Hee),허용석(Hur, Yong-Seok),허범팔(Hur, Bum-Pall) 한국실내디자인학회 2010 한국실내디자인학회논문집 Vol.19 No.1

Since the accomplishment of industrialization and mechanization, human and the nature have gone farther their own way. Human depending on technology have been increasingly expanding and developing their artificial space and as times go by in such a way. Estrangement between the human and nature has resulted in dissatisfaction of human’s instinctual desire and devastation of humans living. People, to deal with such challenge, begins taking a look at the nature. In introducing the nature into the modern architecture, a physical natural element is often directly taken into or the shape that could be inferred form the nature is taken. The study was intended to identify the characteristics of the pattern introducing the nature into the modern architecture, as mentioned in the former case, which is summarized as follows. Introduction of the nature contains a variety of functions in the space and it creates the new space by integrating the internal and external space which becomes boundaryless integrated space. The boundary in the building tends to be getting more ambiguous, while the space accommodating the nature serves the interface, playing a role of intermediator for both the internal and external space. It functions the open public place that helps build the natural community among the users but taking the nature into the inner space, and it is used to attempt to change the interior of the building or for ventilation, lighting or energy-saving purpose. The spatial meaning was found to have varied depending on pattern of the nature introduced. Such conclusions mentioned hereon is expected to help forecast and understand the forthcoming space accommodating the nature when reviewing the pattern of introducing the nature appeared in modern architecture.

IEC60265-1에 의한 케이블 충전전류 시험을 위한 최적 회로 조건 선정

김갑동(K. D. Kim),허용석(Y. S. Hur),윤지호(J. H. Yun),이희철(H. C. Lee),함길호(G. H. Ham),박종화(J. H. Park) 대한전기학회 2001 대한전기학회 학술대회 논문집 Vol.2001 No.7