• Proceedings of the Korea Technology Innovation Society Conference
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• 1999.11a
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• pp.333-340
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• 1999

국제원유가격의 변동은 세계 각국의 경제에 상당한 영향을 미치고 있다. 이러한 원유가격의 변동을 정확히 예측하기 위해서는 원유가격 변동요인의 정립이 필히 요구된다. 본 연구에서는 전통적으로 원유가격의 중요한 변동요인으로 알려져 있는 OPEC의 원유생산량과 걸프전쟁 이후 주요한 국제원유가격 변동요인으로 주목받고 있는 미국의 원유재고량의 영향과 역할을 공적분(Cointegration) 모형과 오차수정모형(Error-Correction Model)을 통해 분석하였다. 분석결과, 원유생산량과 더불어 원유재고량도 원유가격의 중요한 변동요인으로 작용함을 알 수 있었다. 장·단기 탄력성의 경우, 원유생산량의 생산탄력성은 장기에 비해 단기에 더 탄력적으로 나타났으며 원유재고량의 재고탄력성은 단기에 비해 장기에 더 탄력적으로 나타났으며 장기에는 원유재고량의 변동이 생산량의 변동보다 오히려 원유가격에 더 큰 영향을 미치는 것으로 나타났다. 또한, 원유가격은 첫해에서 나타난 불균형을 대략 12%의 조정속도로, 장기균형으로 조정됨을 알 수 있었다.

• Proceedings of the Korea Technology Innovation Society Conference
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• 1999.11c
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• pp.331-340
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• 1999

국제원유가격의 변동은 세계 각국의 경제에 상당한 영향을 미치고 있다. 이러한 원유가격의 변동을 정확히 예측하기 위해서는 원유가격 변동요인의 정립이 필히 요구된다. 본 연구에서는 전통적으로 원유가격의 중요한 변동요인으로 알려져 있는 OPEC의 원유생산량과 걸프전쟁 이후 주요한 국제원유가격 변동요인으로 알려져 있는 OPEC의 원유생산량과 걸프 전쟁 이후 주요한 국제원유가격 변동요인으로 주목받고 있는 미국의 원유재고량의 영향과 역할을 공적분(Cointegration) 모형과 오차수정모형(Error-Correction Model)을 통해 분석하였다. 분석결과, 원유생산량과 더불어 원유재고량도 원유가격의 중요한 변동요인으로 작용함을 알 수 있었다. 장·단기 탄력성의 경우, 원유생산량의 생산탄력성은 단기에 비해 장기에 더 탄력적으로 나타났으며 장기에는 원유재고량의 변동이 생산량의 변동보다 오히려 원유가격에 더 큰 영향을 미치는 것으로 나타났다. 또한, 원유가격은 첫해에서 나타난 불균형을 대략 12%의 조정속도로, 장기균형으로 조정됨을 알 수 있었다.

• Annual Conference of KIPS
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• 2007.05a
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• pp.560-563
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• 2007

본 논문은 소프트웨어의 완성도와 관련하여 발주사와 개발사간의 분쟁이 있을 시에 필요한 분쟁조정을 위한 평가방법을 연구하였다. 먼저 소프트웨어 개발 과정에서 발생할 수 있는 분쟁의 유형을 분류하였고, 객관적인 평가를 위한 감정 절차를 분류하였다. 본 연구에서는 분쟁조정의 객관성 확보를 위한 가중치 설정, 각 기능들에 대한 중요도를 설정하여 어느 정도의 완성도를 보였는지를 정량적으로 평가하였다. 또한, 프로그램의 복제 문제를 판단하기 위하여 필요한 감정 항목 설정 및 도용 여부를 판단하기 위한 기본 자료로 활용될 수 있을 것으로 기대한다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.32 no.9C
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• pp.867-880
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• 2007

We derive a modified version of cubic convolution interpolation for the enlargement or reduction of digital images by arbitrary scaling factors. The proposed scaling scheme is used to resize various format pictures in the transcoding system, which transforms the bitstream compressed at a bit rate, such as the HD bitstream, into another bit rate stream. In many applications such as the transcoder, the resolution conversion is very important for changing the image size while the scaled image maintains high quality. We focus on the modification of the scaler kernel according to the relation between formats of the original and the resized image. In the modification, various formats defined in MPEG standards are considered. We show experimental results that demonstrate the effectiveness of the proposed interpolation method.

• The Korean Journal of Applied Statistics
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• v.28 no.5
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• pp.885-893
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• 2015

It is important to improve the forecasting accuracy of one-year-ahead seasonal factors in order to produce seasonally adjusted series of the following year. In this paper, seasonal factors of 8 monthly Korean economic time series are examined and forecast based on the functional principal component regression. One-year-ahead forecasts of seasonal factors from the functional principal component regression are compared with other forecasting methods based on mean absolute error (MAE) and mean absolute percentage error (MAPE). Forecasting seasonal factors via the functional principal component regression performs better than other comparable methods.

• The Korean Society of Law and Medicine
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• v.17 no.1
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• pp.139-168
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• 2016

Two alternative dispute resolutions for medical dispute have been operated under the States of German Medical Associations. The first is the medical mediation committee of North german area, the other is the advisory committee on medical errors in North-Rhine area. The former has focused on the mediation itself, the latter commission has focused on the expert review itself whether the physician has maintained reasonable care in diagnosis and treatment. Even though these organizations have maintained under the medical associations, to maintain the neutrality on legal and medical decision, the North German mediation committee is composed of a lawyer and a medicine doctor respectively and North-Rhine advisory committee has a lawyer chair person and four medicine doctors. The main difference of Korean Medical Dispute Mediation Agency in respect from the german system is that expert review is subordinated to the mediation process. The neutrality of expert review is suspected from the medicine doctors. The neytrality and the efficiency should be improved to treat the medical disputes. To do so, lawyer and medicine doctor work together in mediation process and lawyer should manage the expert review process but not involved. Mediation process and expert review should be checked and balanced, and they could be developed as a separated process itself.

• The KIPS Transactions:PartB
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• v.9B no.2
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• pp.147-154
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• 2002

In bulding Intelligent Agent Societies (IAS), it is very important to design and implement coordination in accordance with the known requirement and anticipated working conditions. Coordination consists of a set of mechanisms necessary for the effective operation of IAS. Currently, there is little theoretical support that could help in this research is to generate an empirically-based solving systems in which all agent share an identical goal structure and fully cooperate. And we developed a simulation model called "P-System" which produces basic data to be used for statistical analysis to generate a theory of coordination. Coordination among agent in the P-System is dependent on 23 control variables calld TEs(tweakable emtities.)And the level of coordination is represennted by an independent variabe called QMC (Quality Measure Coordination) expressed in numerical terms according tn the definiion of this study. Also, we have studied how to select unbiased subset from the huge total experimental space of the P-System and how to decide the scale of the subset.

• KDI Journal of Economic Policy
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• v.26 no.1
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• pp.71-104
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• 2004

This paper explores the empirical performances of the workout companies with special interests in the effectiveness of corporate reorganizing tools on their revitalization. In the empirical analysis it considers the criteria of success or failure in restructuring from both creditors' and debtors' perspectives. The key results are summarized as follows. First, the initial conditions on the debt structure of the workout companies are significantly related to the revitalization from both creditors' and debtors' point of view. Second, the debt restructuring instruments are insignificant in the success of corporate turnarounds while the debt-to-equity conversion has been a relatively effective tool. Third, the self-restructuring efforts, employment downsizing and governance reshuffling do not affect the performances significantly. The higher importance of initial conditions than corporate restructuring efforts may imply that Korean corporate workouts serve better to the needs of creditor financial institutions which are to maximize debt recovery and of the government which is to overcome financial crisis.

• Journal of Science and Technology Studies
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• v.9 no.1
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• pp.57-87
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• 2009

Sick House Syndrome(SHS) is the environmental health problem which is difficult to clarify a causal relationship and a responsibility. This paper is focused on a National Environmental Dispute Resolution Commission(NEDRC)'s judgment on SHS and the process of the change of knowledge and policies related to SHS. In the process of the resolving the SHS dispute, NEDRC functioned as a boundary organization, which helps stabilize the boundary between science and policy, and provides space of mutual collaboration and produces boundary objects. NEDRC had necessary characteristics and resources to make scientific knowledge and policies of SHS. First, it was important for SHS to define a problem clearly and to justify the related information whereupon legal authority was effective. In addition, for the procedure of deciding polities, the role of the Ministry of Environment(ME) was essential. However, due to the condition of ME, the discussion of SHS had been limited to the scope of dispute, excluding scientific discussion.

• Journal of the Korean Institute of Gas
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• v.6 no.4 s.18
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• pp.23-32
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• 2002

The purpose of the present study is to analyze the response of Gas Utility subjected to Earthquake and to discuss the failure prediction of Kogas Storage Tank. Initially here, characteristics of Earthquake are reviewed and then earthquake-resistance Design is investigated based on previous earthquake hazard cases. Next, considering the distribution of the transverse permanent ground displacement and equivalent spring constant effect, formulae obtained by a beam theory are established to analyze PeungTak Center Control Room. This analysis was performed without consideration of axial effects. So the finite element analysis was used in order to consider the axial stiffness of Structure.