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- 저자 : 안재민 ( Jae Min An ) (검색결과 191 건)
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도로시설물의 자산관리를 위한 자산가치평가방법에 관한 연구
안재민,박종범,이동열,이민재,An, Jae-Min,Park, Jong-Bum,Lee, Dong-Youl,Lee, Min-Jae 한국건설관리학회 2012 한국건설관리학회 논문집 Vol.13 No.4
도로시설물은 국가 경제 활동의 기반을 형성하는 기초적인 시설물이며 국가에 필수적인 기반 시설물이다. 현재 국내 관리대상 도로시설물은 해마다 증가하고 있으며, 이에 따른 유지관리비 예산의 상승이 예상된다. 이와 같이 건설되어 축적된 도로시설물에 대한 비용 효율적 관리를 위해서는 자산이 지닌 가치를 객관적으로 나타낼 수 있는 지표가 필요할 것이다. 이러한 지표는 자산가치로써 화폐단위로 나타낼 수 있다. 국외에서는 자산관리 및 자산가치평가에 대한 연구가 활발히 진행되고 실제 공용중인 도로시설물에 적용을 하고 있지만 국내에서는 이에 대한 준비나 연구가 부족한 상황이다. 본 논문은 도로시설물의 자산관리를 위한 합리적인 자산가치평가를 도출하기 위한 방법으로 자산가치평가방법을 기존의 문헌과 연구 자료를 통하여 조사 및 정리를 하였다. 이를 바탕으로 도로시설물에 자산가치평가방법들을 적용하기 위하여 국내 실정과 특성이 반영된 자산가치 프로세스를 개발하였다. 개발된 자산가치 프로세스에 따라 실제 공용중인 도로시설물을 적용하고 그 결과를 분석하여 각 자산가치평가방법들의 활용방안을 도출하였다. 또한, 가장 활용성이 높은WDRC(Written Down Replacement Cost)방법을 이용하여 자산관리업무 수행 절차를 위한 자산 관리 업무지원 모식도를 제시하였다. Infrastructure are the essential element in the country for they are the basic facilities forming the basis of economic activity. In Korea Infrastructure which are subject to the management of government are increasing annually, and subsequently the budget of maintenance costs is expected to rise significantly. For the effective management of the constructed and accumulated infrastructure, the integrated management of the future assets will be needed which includes the determination of the asset status, management subjects, and the location, the maintenance of their performance and state, and the prediction of the cost required to increase their useful lifetime. However, in the domestic cases the road facilities valuation has not been done systematically, and the preparation and research on this is scarce. Thus, the systematic procedure for the road facilities valuation is required. In this paper the following study was conducted to derive the reasonable asset valuation methods. First, the valuation methods was investigated and summarized throughout the domestic and international research literature. Second, to apply the investigated valuation methods to the road facilities the valuation process that reflects domestic conditions and characteristics has been developed. Third, a working Bridge, Highways, and General national ways were applied to the general valuation process, and the results were analyzed. As a final step a schematic diagram of the asset management support by WDRC valuation method was presented.
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안재민,박대우,An, Jae-Min,Park, Dea-Woo 한국정보통신학회 2010 한국정보통신학회논문지 Vol.14 No.10
고등학교에서 학생의 진로교육에 대한 기본 자료는 교육과학기술부에서 지원하는 NEIS의 교무업무시스템과 담임교사 중심의 진로교육 자료가 오프라인 형태로 관리 및 운영되고 있어, 학생들의 진로교육을 위한 실질적 의사결정 시스템으로서 활용하기에 어려움이 있다. 본 논문에서는 학생들의 맞춤형 진로교육을 위한 e포트폴리오, 성적 및 상담자료 등을 DB로 구축하여, 인터넷 웹 기반의 학생관리통합시스템(SMTS: Student Management Total System)을 설계하고 구현한다. 이 결과 교사들은 학생의 소질과 적성을 고려한 맞춤형 진로교육을 실시하여, 건전한 직업관을 가진 미래의 국가자원으로 성장시키고자 하는데 그 목적이 있다. As basic data about students' career education in high school are being managed only in forms of NEIS, which is supported by Ministry of Education, Science and Technology, and the information for career education that homeroom teachers have operated by off-line system, it is hard to use them as practical decision support system for students' career education. In this study, we intend to design and embody web-based Student Management Total System by constructing DB of students' e-portfolios, school records and counselling data etc. As a result, teachers can carry out vocational education that is considered students' talents and aptitude, and we have a goal for promoting the growth of the students as the national human resources who have sound occupational consciousness through this education.
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PSCAD/EMTDC를 이용한 저전압 직류배전 시스템 모델링
안재민(Jae-Min Ahn),전정채(Jeong-Chay Jeon),임용배(Young-Bae Lim),배석명(Seok-Myeong Bae),이경호(Kyoung-Ho Lee) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.11
The purpose of this paper is to analyze electrical safety of a low voltage direct current distribution system with 6-pulse three-phase thyristor rectifier. For analysing electrical safety. we performed modeling of the low voltage direct current distribution system with a 6-pulse three-phase thyristor rectifier using PSCAD/EMTDC and surveyed impedance of sources. transformers and distribution lines to run a simulation. In this paper, we verified the modeling of the low voltage direct current distribution system with a 6-pulse three-phase thyristor rectifier which is controlled PSCAD's PI controller, PLL, and a Interpolated Firing Pulse.
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급성 경항통 환자의 흉쇄유돌근에 대한 근 에너지 기법(MET) 시술 후의 경근전도 변화 연구
안재민 ( Jae Min Ahn ),조동인 ( Dong In Cho ),박동수 ( Dong Su Park ),정수현 ( Su Hyeon Jeong ),김순중 ( Soon Joong Kim ) 한방재활의학과학회 2014 한방재활의학과학회지 Vol.24 No.1
ObjectivesTo evaluate the clinical utility of MET performed on sternocleidomastoid mus-cle of acute nuchal pain patients, we measured a change of meridian electromyography.MethodsWe compared electrical activity before and after MET performed on sternoclei-domastoid muscle of acute nuchal pain patients in same group (n=20) in isometric exercise state during five seconds. We analyzed amplitudes and areas of electrical activity and asymmetry index (AI).Results1. After MET performed on sternocleidomastoid muscle of acute nuchal pain pa-tients, maximum voluntary isomeric contraction (MVIC) was significantly increased more than before MET performed (p<0.005). 2. Comparing with before MET performed on ster-nocleidomastoid muscle of acute nuchal pain patients, muscle fatigue after MET performed on sternocleidomastoid muscle of acute nuchal pain patients decreased but there was no significant difference. 3. Comparing with before MET performed on sternocleidomastoid muscle of acute nuchal pain patients, asymmetry index (AI) after MET performed on sterno-cleidomastoid muscle of acute nuchal pain patients decreased but there was no significant difference.ConclusionsAccording to above results, after performing MET on sternocleidomastoid muscle of acute nuchal pain patients, maximum voluntary isomeric contraction (MVIC) in-creased significantly, so it is certain that performing MET on sternocleidomastoid muscle has a clinical effect. (J Korean Med Rehab 2014;24(1):93-100)
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안재민 ( Jae-min An ),홍경숙 ( Kyong-suk Hong ),윤혜정 ( Hye-jeong Yun ),김성연 ( Sung-youn Kim ),유경은 ( Kyung-eun Yu ),신희창 ( Hee-chang Shin ),윤재돈 ( Jae-don Yun ),이재훤 ( Jae-hwon Lee ),김동호 ( Dong-ho Kim ) 한국환경농학회 2016 한국환경농학회 학술대회집 Vol.2016 No.-
The present study was carried out to reduction of lead(Pb), cadmium(Cd), mercury(Hg), arsenic(As), chromium(Cr) and nickel(Ni) concentrations by 5 milling degrees(0.0%, 2.4%, 4.8%, 7.2% and 9.6%, from husked rice to polished rice) in rice. Recently, various rice by milling degree is sold for health and taste. To provide safe food to consumers, it is need to know the change of their concentrations according to milling degree of rice. Pb, Cd, As, Cr and Ni analysis in milled rice 255 samples were performed using microwave device and Inductively Coupled Plasma Mass Spectrometry(ICP/MS), whereas mercury was determined by automatic mercury analyzer(DMA-80). The contents of lead, cadmium, mercury, arsenic, chromium and nickel in samples were determined. The contents of lead was 0.0010-0.0572 mg/kg, cadmium was 0.0031-0.1009 mg/kg, mercury was 0.0001-0.0421 mg/kg, arsenic was 0.028-0.244 mg/kg, chromium was 0.016-0.495 mg/kg and nickel was 0.027-0.608 mg/kg, respectively. The Limit of detection(LOD), Limit of quantification(LOQ) and correlation coefficient(R2) for heavy metals(Pb, Cd, Hg, As, Cr and Ni) were 0.38-0.66 μg/kg, 1.21-2.09 μg/kg and 0.9999-1.0000, respectively. The recovery results and coefficient of variations were in the range 91.3-103.5% and 2.82-4.50%, by tested certified reference materials(CRM) and spiked standard solutions. For risk assessment, daily intakes of heavy metals were calculated and compared with provisional tolerable weekly intake(PTWI) or provisional tolerable monthly intake(PTMI) established by the Joint FAO/WHO Expert Committee on Food Additives(JECFA). Therefore, the level of overall dietary exposure to heavy metals for Korean through from these results, conforming with increase of milling degree of rice, heavy metal concentration tended to decrease. The contents of heavy metal were decreased 57.7% in lead, 13.0% in cadmium, 50.3% in mercury, 38.2% in arsenic, 59.1% in chromium and 48.5% in nickel in according to the highest milling degree of 9.6%(polished rice). The reduction rate of heavy metals were as Cr>Pb>Hg>Ni>As>Cd.
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e-Business Demand Education 분석에 따른 전문계고 Curriculum 연구
안재민(Jae-Min An),박대우(Dea-Woo Park) 한국컴퓨터정보학회 2009 韓國컴퓨터情報學會論文誌 Vol.14 No.8
산업별 필요인력의 수급 불균형과, 직업교육기관의 Skill Mismatch로 산업체가 요구하는 전문기술 인력 수급이 어려운 실정이다. 산업체는 학교졸업자를 현장에서 재교육하고, 산업특성에 맞는 기술을 습득하여야만 생산성을 향상 시킬 수 있다. 본 논문에서는 산업체가 요구하는 Demand Education을 수용하고, e-Business 분야에서 특성화 전문계고 Curriculum을 작성하는 연구이다. e-Business 산업분류 및 직종분류를 파악하고, e-Business 교육에 대해 산업체에서 요구하는 지식과 Skill 수준을 파악하고 그 수요를 조사하고 분석한다. 기반산업, 지원산업, 활용산업별로 조사된 e-Business Curriculum을 학습에 적용하고, 산업체의 Demand Education 계고 e-Business Curriculum의 기본 모델과 학과별 Curriculum을 제시하고, 산업체 요구의 e-Business 교육을 통한 생산성 향상을 통한 국가 발전에 기여하고자 한다. It is difficult that expertise human supply and demand for industry requires by imbalance of industry necessity human and profession organs of education's Skill Mismatch. Industry can prove productivity though reeducate school graduation person in spot and master correct technology in industry special quality. This paper is research that accommodate Demand Education that industry requires and make out full text caution Curriculum Specializing Vocational High School in e-Business field. Analysis e-Business industrial classification and occupational classification. Analysis knowledge and technological level that require in industry about e-Business education and investigate and analyze the demand. Base industry, Support industry, Apply e-Business Curriculum that is examined by practical use industry to learning, Do to estimate satisfaction about Demand Education Curriculum of industry and confirm Success special quality with research and investigation and application wave. Suggested for e-Business Curriculum's basis model in this paper and school subject Curriculum. Wish to contribute in nation development through productivity elevation through e-Business education of industry request.
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