• Proceedings of the Korea Society for Energy Engineering kosee Conference
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• 1996.10b
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• pp.45-53
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• 1996

한전은 1995년 5월에 가격기능에 의한 수요관리 효과를 증진시키기 위하여 계절·시간대별 차등요금(이하 계시별 요금)을 대폭적으로 변경하였다. 본 연구는 이와 같은 요금구조 변경에 대한 수용가의 반응도 분석을 위한 것이다. 이를 위하여 요금구조 변경전인 95년 4월을 기준으로 1년후인 1996년 4월의 일반용(을) 및 산업용(병) 갑 및 을 종별에 대한 가격탄력성과 수용가의 부하패턴 변화를 측정하였다. 가격탄력성은 산술적 모형을 이용하면 산업평균 최대부하 시간대가 -0.0121, 중부하 및 경부하 시간대가 각각 -0.0788 및 -0.0012으로 산출되었다. 또한 회귀모형을 이용할 경우 최대부하 시간대가 -0.0126, 중부하 시간대가 -0.0018 및 최대부하 시간대가 0.0006로 나타났다. 한편 계시별 요금에 대한 수용가의 반응성은 다음과 같이 요약할 수 있다. 첫째, 계시별 요금이 피크시간대에 매우 낮으나 분명한 수요감소에 영향을 주고 있다. 둘째, 산업별로의 수용가의 반응성이 매우 다르다. 셋째, 상업용 수용가의 반응도가 매우 낮다. 넷째, 같은 가격탄력성은 수용가의 규모가 클수록 가격 변화에 대한 수용가의 반응성은 낮은 것으로 나타났다.

• Proceedings of the Korean Nuclear Society Conference
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• 1996.05d
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• pp.523-528
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• 1996

원자력발전소는 화력, 수력발전소 및 화학플랜트와는 다르게 안전성을 최우선적으로 고려하여 건설되어야 하므로 이의 설계 및 제작에 코드 및 기술기준이 엄격하게 적용되고 있다. 기술기준은 산업이 발달함에 따라 해마다 개정되고 있는 바, 이를 건설중인 원자력발전소에 반영하기 위해서는 건설공기에 미치는 영향과 설계변경에 따른 기기 제작비용의 상승 등을 고려하여야 한다. 1995년 및 1996년부터 상업운전을 시작한 영광3호기 및 4호기와 현재 건설중인 울진3,4호기 원자로 계통설계에는 개정된 최신 기술기준이 거의 적용되지 않았으며, 설계에 반영하여야 할 필요성이 대두되거나 흑은 규제기관의 요구에 의하여 변경된 기술기준을 적용하여야 할 경우 사업자를 포함한 국내 관련사간의 혐의를 통하여 타당성을 평가한 후 설계를 변경하는 것이 일반적인 관례였다. 본 논문에서는 원자력발전소 설계의 기술기준 적용일 결정에 대한 법적 요건 및 국내외 기술기준 적용일 사례를 살펴보고, 원자력발전소 설계에의 기술기준 적용일 결정의 필요성과 기술기준 적용일을 결정하여야 할 경우 적절한 기술기준 적용일 선정방법 등을 분석하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.8
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• pp.3739-3747
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• 2013

The purpose of this study was to examine the effects of LMX on the burnout and career turnover intention of social worker. For the research, burnout was consisted of emotional exhaustion (EE), depersonalization (DP) and diminished personal accomplishment (PA) by Maslach and Jackson's MBI. This study was analyzed 342 social workers in private social welfare organizations by survey. The results of this study were summarized as follows: The level of LMX perceived by social workers was a higher than medium. LMX was negatively related to the burnout and career turnover intention. LMX had a negative influence on the burnout and career turnover intention. Especially, EE and DP had a positive effect on the career turnover intention. This study finally discussed theoretical implications for future study and practical implications for LMX strategies on the results.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.295-300
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• 2001

Additional costs as well as schedule delay are occurred due to change orders in today's construction projects. Additional costs, overhead calculation methods are of various types. In a foreign country cases, many claims related to the loss of labor productivity quote research statistics data. In domestic cases, the study of the reason why the loss of labor productivity occurs and its effect have not been performed. Therefore, this paper analyzes factors affecting lost productivity and a methodology is presented to estimate the lost productivity.

• Korean Business Review
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• v.17 no.2
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• pp.41-61
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• 2004

Before 2003 the companies in Korea should capitalize the interest expenses that are attributable to the acquisition, construction or production of a qualifying assets. However, according to the revised standard which should be applied from 2003, the companies can either capitalize the interest expenses or recognize as an expense when they are incurred. Therefore almost all the companies confronted with the decision making of accounting choices on the interest capitalization. This paper empirically examines which financial characteristics of the companies affect the accounting choice by using logistic regression model and reviews the sufficiency of the foot notes disclosures regarding the capitalized interest. The variables of the financial characteristics are change of debt-equity ratio, borrowing ratio, qualifying assets ratio, firm size and income smoothing. The results of this study are summarized as follows. First, among the financial characteristics, only qualifying asset ratio has the significant difference between capitalized companies and expensing companies. Second, the results of logistic regression indicate that qualifying asset ratio and firm size have the significant influence on the accounting choices. Therefore, I cannot find the evidence supporting that the companies use the accounting choice to manage the financial ratios.

• Proceeding of EDISON Challenge
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• 2014.03a
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• pp.654-658
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• 2014

풍력발전은 재생에너지로써 유망한 대체 에너지원으로 각광받고 있으며, 국내에서는 이미 영덕, 영양 등의 풍력단지가 가동 중에 있다. 그러나 장기간 사용되어온 터빈이 반 이상이며, 그 중에서도 바람의 영향을 많이 받는 블레이드는 끝단 Tip이 벌어지는 파손이 발생하곤 한다. Blade Field의 유지보수를 통해 수명연장이 가능하나, 형상변화로 공력특성에 영향을 미치게 된다. 본 연구에서는 MEXICO 터빈용 블레이드의 Tip부분에 대해서 EDISON을 활용하여, 수리로 인해 변경된 Blade의 공력특성 변화를 분석하였다. 형상변경은 상용 프로그램 Pontwise로 작업했으며, 익형 주위의 유동을 2D비압축성 유동으로 가정하고 EDISON CFD의 2D_Incomp-2.1_P solver를 수치해석을 수행하였다.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.29 no.3
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• pp.85-96
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• 2011

The purpose of this study, Around Gyeonggi-do cultural propertie Change the Present Condition not apply to analyze the results of processing Change the Present Condition of the trends and issues, and characteristics are derived and In determining the basic data processing of the Change the Present Condition presented are intended to be. 248 of 2009 regulated by Gyeonggi-do Cultural Assets committee agenda for consideration of the more than three times a copy of 15 were enrolled in the study. Review the results of the Change the Present Condition permit, permit held, to review classified information and analyzes the results of processing and complementary. Application for change processing standards and their comparison with the Change the Present Condition of cultural property through the deliberations and conclusions should analyze the results. As a result of research first, decision to allow processing of the application is characterized by a variety of facilities and the lower floors many times the result of the approval, the construction of cultural property conditioned space after the application complements the exterior of the building permit has been determined, applied to the current building near where the decision to allow the existence of is the main reason Second, decisions permit held, if requested neighborhood facilities lots of facilities and construction of large-scale is the most. Results from the first hearing until a final decision is not much change in results and cultural property surroundings due to the building of the reason for rejection was the most inhibited. Third, reconsideration of the decision if the city's development projects and other large development projects, and floors of the building height did not significantly affect the change. Above all, Decisions based on the results of the presence or absence was a big acts and the reason for reconsideration, and on-site investigation is the most. Fourth, It is based on the processing of Change the Present Condition that has been passed or rejected treatment and standards of treatment in two areas where the two sections across any side of the strict criteria were applied. Cultural Properties and applications with the distance increases, the rejection and the reconsideration decision is limited Such distance did not affect the decision to allow.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2017.05a
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• pp.1153-1155
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• 2017

The Launch Vehicle is made up of one system with several parts gathered together. In order to make the various parts developed in various organizations into one system, it is necessary to confirm all designs at certain point in time. Change after the design fix require controlled process to analyze the impact of the changes, to decide whether or not to make the change, and to verify that the change was implemented as intended. The configuration management procedure implemented in the above manner is also applied to the development process of KSLV-II. The CAD tool and PLM are linked with each other to perform configuration management for the 3D model, 2D drawing, and the configuration identification document.

• KSBB Journal
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• v.22 no.1
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• pp.16-21
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• 2007

Although Energy demands of modern society increase rapidly, current energy would be exhausted shortly. Therefore development of bio-ethanol production process from cellulose containing materials was extremly demanded. Therefore development of highly functional cellulase is requisite for this purpose. In this study cellobio-hydrolase (CBH1) gene from Trichorderma reesei was used to increase cellulase activity by directed evolution and highly functional cellobio-hydrolase was obtained and characterized.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.39 no.2
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• pp.273-279
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• 2019

Development of mountain area is increasing due to the demand for improvement of traffic convenience and development of underdeveloped area. Therefore, there frequently are sections where tunnels and interchanges are located close to each other. These sections do not only affect tunnel planning, types and length of interchanges, but also affect more on route selection. In Korea, several design criteria present each reference value but these values are very similar. In the situation, the minimum value among them is usually applied when planning roads and it could cause traffic safety problems in different site conditions. In this study, the problems of design speed, illuminance adaptation distance, and lane change intervals are analyzed by simulating the cases that the problem could occur when calculating the separation distance between tunnel and interchange. The results obtained from this study can be summarized as following: the driving speed should be applied in case that the site has a big gap between design speed and driving speed because the uniform application of the design speed is not safe; the illuminance adaptation distance should include the influence distance in the section affected by the direct light; in addition, the lane change distance should include the time to perceive the situation of the next lane after the lane change in the section required for successive lane change.