국내건설공사 유형별 물가변동 조정방식에 대한 고찰

정기창,Jeong, Gi-Chang 한국건설관리학회 2022 건설관리 : 한국건설관리학회 학회지 Vol.23 No.4

투명중심의 청렴한 지방의회상 확립방안¹⁾

정기창 한국자치발전연구원 2011 자치발전 Vol.2011 No.6

공사기간 연장에 따른 추가간접비 사전합의 제도 도입 방안 연구

정기창,이재섭,박양호,Jeong, Ki-Chang,Lee, Jae-Seob,Park, Yang-Ho 한국건설관리학회 2012 한국건설관리학회 논문집 Vol.13 No.6

본 연구는 공공공사 공기연장 시 발생하는 추가간접비의 지급개선방안에 관한 연구이다. 현장사례를 통해 공기연장 추가 간접비 미지급 원인을 분석한 결과 실비의 인정범위에 대한 다툼 및 증빙의 어려움이 있는 것으로 조사되었으며, 전문가 의견조사 실시결과 통계적 기준이 명확하다면 공기연장 추가간접비의 인정범위를 합의하는 '공기연장 사전합의 제도'를 실시할 수 있을 것으로 조사되었다. 따라서 본 연구는 다수의 현장 실비자료를 집계하여 공사프로젝트의 공종별, 공사금액별, 공사기간별 측면에서 산정하였다. 산정한 결과 공종 및 공사기간별 요인은 공사기간연장 추가간접비 발생금액에 직접적 영향을 미치는 것으로 볼 수 없으나 도급계약금액요인에 따라서는 직접적 연관성이 있는 것으로 나타났다. 이에 계약금액별 공사기간연장에 따른 추가비용인 '공기연장 표준추가간접비'를 제시하였으며, 공기연장비용 사전합의 제도를 시행하기 위한 제도적 개선방안을 제시하였다. This study is as to payment improvement method of additional incidental cost to be occurred upon extension of public construction time. According to the result of analysis about the cause of non-payment of additional incidental cost of construction time extension through site examples, it was found that difficulties exist in disputes & proofing over the scope of actual cost recognition, and in this regard the result of experts opinion indicated that a construction extension pre-agreement system can be executed which agrees the scope of recognition of additional incidental cost of construction time extension once the statistical standard is clear and accurate. Accordingly, in this study, by totalling multiple sites data, calculations were implemented in terms of type of construction projects, amount of constructions, period of constructions. According to the result of calculation, the element of type of construction project and construction period appears to have none direct effect to the occurrence of additional cost of construction time extension, but direct relationship was indicated related to the contract amount element. In view of above, in this study a standard additional incidental cost of construction time extension was proposed, and presented a system improvement plan to implement the construction extension pre-agreement system.

제도화된 인종주의가 다문화 관련 직무 종사자의 문화적 역량과 직무스트레스에 미치는 영향

정기창,윤숙이 한국다문화교육학회 2016 다문화교육연구 Vol.9 No.3

This study aims to identify how the institutionalized racism of social workers in multicultural settings affects their cultural competence and job stress. According to the result of an analysis, institutionalized racism has negative effects on cultural competences, while it has positive effects on multicultural related job stress. This suggests that discussions on institutionalized racism are needed in order to find methods of improving social workers’ cultural competences, to enhance the quality of the relevant practical services, and to secure the social workers’ mental health. Therefore, it is strongly recommended that this concept should be added to education for strengthening cultural competences in social work, various training programs, and others activities. Critical thought must be given to invisible discrimination which has been practiced against true meaing of multiculturalism and discussions on how to improve multicultural competences are necessary. 본 연구는 다문화 관련 직무 종사자의 제도화된 인종주의가 종사자의 문화적 역량과 직무스트레스에 미치는 영향에 대해 살펴보려는 목적을 가진다. 분석결과, 제도화된 인종주의가 문화적 역량에는 부적(-)으로, 직무스트레스에는 정적(+) 영향을 미치는 것으로 나타나, 문화적 역량 증진 방안 모색과 실천서비스의 질적 향상, 종사자들의 정신건강을 위해 제도화된 인종주의에 대한 논의가 필요한 것으로 나타났다. 따라서, 다문화 관련 직무 종사자의 문화적 역량 강화 교육 및 각종 훈련프로그램 등에 제도화된 인종주의 개념이 추가될 필요가 있으며, 보이지 않는 차별이 가해지고 있는 다문화주의에 대한 비판적 고민과 함께 제도화된 인종주의의 개선방법에 대한 관심과 논의가 필요하다.

국내 공공 공사 공기연장 간접비 산정 기준 개선방안 - 국가계약법 및 지방계약법 산정기준의 비교 고찰 -

정기창,이재섭,Jeong, Kichang,Lee, Jaeseob 한국건설관리학회 2016 한국건설관리학회 논문집 Vol.17 No.4

Recently, a research regarding calculation of construction time extension-oriented incidental costs has been intensively suggested in quantitative aspect and recent studies on system improvement has been made continuously. In the case of Domestic Public Construction Works, State Contract Act is applied when the client is government whereas Local Government Contract Act is done when the client is local government, but more meticulous study is required because improvement plan is not proposed even there is a clear demand for improvement of these problems on calculation standard. Thus this study suggested appropriate standard by comparing each the calculation standards followed by 'State Contract Act' and 'Local Government Contract Act', considering the problems accorded, and analyzing field cases. Calculation method of other expenses was differently regulated as the revision of each regulation, and this demonstrates that there is a difference of actual cost from 12.37% to 24.95%. It is shown that less cost of construction time were calculated than actual cost according to a problem of calculation method by State Contract Act as the rate at the time of contract to be applied in other expense rate. This study suggested the rate against incidental cost and the rate of other expense per day against total construction cost as an appropriate rate calculation for other expense based on field database. 공기연장에 따른 간접비 산정에 관한 연구가 최근 정량적인 부분에 집중되어 제시되고 있으며, 최근 제도개선에 관한 연구가 계속적으로 이루어지고 있다. 국내 공공 공사의 경우 발주자가 국가인 경우에는 국가계약법을, 지방자치단체인 경우에는 지방계약법을 적용받게 되는데 이러한 산정기준의 문제점에 대해 명확하게 개선방안의 요구가 있음에도 개선방안이 제시되고 있지 않아 개별 문제점에 대한 면밀한 연구가 필요한 실정이다. 본 연구는 이러한 배경에서 '국가계약법'에 따른 산정기준과 '지방계약법'에 따른 산정기준의 각 산정결과를 비교하고, 문제점을 고찰 후 현장사례를 분석하여 적정한 기준을 제시하였다. 각 규정을 고찰한 결과 기타경비 산정방식이 다르게 규정되어 있었으며 이에 따라 실제 비용이 적게는 12.37%부터 24.95%까지 차이가 발생하고 있다는 결과를 얻을 수 있었다. 이러한 문제점은 실비가 아닌 계약당시 요율을 그대로 기타경비요율로 적용하는 국가계약법에 따른산정방식의 문제점에 따른 것이며, 이에 따라 실제 비용보다 적은 공기연장 비용이 산정되는 것으로 나타났다. 이에 본 연구는 현장자료를 기반으로 적정한 기타경비 산정요율을 총공사비 대비 1일당 기타경비 요율과 간접비 대비 요율방식으로 제시하였다.

European Communities and Certain Member States - Measures Affecting Trade in Large Civil Aircraft (Article 21.5)

정기창,김혜수 산업통상자원부 2022 통상법무정책 Vol.- No.4

분리형 써모사이폰의 열전달특성에 관한 실험적 연구

정기창,이기우,유성연 대한설비공학회 1998 설비공학 논문집 Vol.10 No.1

Separate type thermosyphon has larger critical heat flux than non-loop type thermosyphon, because the flooding phenomenon of vapor and liquid occurring in non-loop one does not occur. The experimental study has been carried out separate type thermosyphon with single tube. An investigation of heat transfer characteristics in separate type thermosyphon is performed experimentally. Heat transfer coefficients in an evaporator and condenser were measured experimentally. The effects of liquid filling ratio, height difference, cooling temperature and heat flux on the heat transfer coefficients were examined. As a result, the reasonable range of the liquid filling ratio and the dependence of heat transfer on vapor temperature and heat flux are obtained.

화재시 제연 및 피난을 위한 기능성 차압 조절장치 개발에 관한 연구

정기창,김정훈,이정윤 한국안전학회 2004 한국안전학회지 Vol.19 No.1

The smoke and toxic gases generated fi-om the building fires are proved to cause human death. Therefore, the necessity and significance of smoke control have been emphasized, and lots of studies for developing improved smoke management system have been carried out. In this study, the experiments were conducted to evaluate a function and performance in newly developed smoke management system using mechanical pressurization. As a result of this experiment, the differential pressure was 4OPa--60Pa and the air velocity through the door was 0.7m/s between safety zone and fire zone. The functional pressure control equipment which could make proper pressure and maintain differential pressure between safety zone and fire zone was developed And it will give a lot of helps to evacuation activity for peoples in building and fire fighting.

EU-러 돼지 분쟁(DS 475) 패널·상소기구 판정 분석 : Russian Federation-Measures on the Importation of Live Pigs, Pork and Other Pig Products from the European Union

정기창,김혜수 산업통상자원부 2022 통상법무정책 Vol.- No.3

자외선 수직형 LED 제작을 위한 Indium Tin Oxide 기반 반사전극

정기창,이인우,정탁,백종협,하준석,Jung, Ki-Chang,Lee, Inwoo,Jeong, Tak,Baek, Jong Hyeob,Ha, Jun-Seok 한국재료학회 2013 한국재료학회지 Vol.23 No.3

In this paper, we studied a p-type reflector based on indium tin oxide (ITO) for vertical-type ultraviolet light-emitting diodes (UV LEDs). We investigated the reflectance properties with different deposition methods. An ITO layer with a thickness of 50 nm was deposited by two different methods, sputtering and e-beam evaporation. From the measurement of the optical reflection, we obtained 70% reflectance at a wavelength of 382 nm by means of sputtering, while only 30% reflectance resulted when using the e-beam evaporation method. Also, the light output power of a $1mm{\times}1mm$ vertical chip created with the sputtering method recorded a twofold increase over a chip created with e-beam evaporation method. From the measurement of the root mean square (RMS), we obtained a RMS value 1.3 nm for the ITO layer using the sputtering method, while this value was 5.6 nm for the ITO layer when using the e-beam evaporation method. These decreases in the reflectance and light output power when using the e-beam evaporation method are thought to stem from the rough surface morphology of the ITO layer, which leads to diffused reflection and the absorption of light. However, the turn-on voltage and operation voltage of the two samples showed identical results of 2.42 V and 3.5 V, respectively. Given these results, we conclude that the two ITO layers created by different deposition methods showed no differences in the electric properties of the ohmic contact and series resistance.