• 전기학회논문지
• /
• 제66권8호
• /
• pp.1303-1308
• /
• 2017

The underground electricity distributions are significantly increased because of the urbanization accompanied by rural area developments. However, it has also been increased the safety accidents such as an electric shock around the handhole where the underground cables are connected to each other. This paper provides the base materials on the necessity to amend the installation regulation for securing the insulation and structure strength of handholds using the cast iron or fiberglass reinforced plastic. Article 137 in the judgement regulation for the Korea electro-technical regulation which is one of the installation regulations for handhole is amended and announced in 2017 by being based on the materials in this paper. It is expected to continually reduce the electric shock occurrence around handhole by considering the amended installation regulation.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2008년도 제39회 하계학술대회
• /
• pp.697-698
• /
• 2008

This paper deals with finite element characteristic analysis of brushless DC motor according to magnetic property measurement methods. Magnetic property data for non-oriented (NO) electrical steel for electric motors are measured by the Epstein test which is considered as the international standards. Data from Epstein test may result in discrepancy from motor characteristic tests due to innate anisotropic property of NO electrical steel. Finite element analysis were performed for a BLDC motor by various measurement methods such as Epstein test, Ring test and single sheet test (SST), and calculated results were compared with considering anisotropic property conditions.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권18호
• /
• pp.8595-8598
• /
• 2016

Background: Decision making modalities for screening for many cancer conditions and different stages have become increasingly complex. Computer-based risk assessment systems facilitate scheduling and decision making and support the delivery of cancer screening services. The aim of this article was to survey electronic risk assessment system as an appropriate tool for the prevention of cancer. Materials and Methods: A qualitative design was used involving 21 face-to-face interviews. Interviewing involved asking questions and getting answers from exclusive managers of cancer screening. Of the participants 6 were female and 15 were male, and ages ranged from 32 to 78 years. The study was based on a grounded theory approach and the tool was a semi-structured interview. Results: Researchers studied 5 dimensions, comprising electronic guideline standards of colorectal cancer screening, work flow of clinical and genetic activities, pathways of colorectal cancer screening and functionality of computer based guidelines and barriers. Electronic guideline standards of colorectal cancer screening were described in the s3 categories of content standard, telecommunications and technical standards and nomenclature and classification standards. According to the participations' views, workflow and genetic pathways of colorectal cancer screening were identified. Conclusions: The study demonstrated an effective role of computer-guided consultation for screening management. Electronic based systems facilitate real-time decision making during a clinical interaction. Electronic pathways have been applied for clinical and genetic decision support, workflow management, update recommendation and resource estimates. A suitable technical and clinical infrastructure is an integral part of clinical practice guidline of screening. As a conclusion, it is recommended to consider the necessity of architecture assessment and also integration standards.

• 한국조경학회지
• /
• 제35권5호
• /
• pp.37-45
• /
• 2007

WTO/TBT requires that, for technical regulations affecting trade, technical regulatory requirements must be specified where possible in terms of performance rather than design or descriptive characteristics. The movement which made "performance" a keyword in landscape architecture was activated in Japan, one of the leading counties in performance-based regulatory system(PBRS). The Japanese recent movement of systematization activity on performance-based standards and specifications was reviewed and operational applications for performance-based regulatory system in South Korea are summarized as follows: 1. The establishment of performance standards that can be properly evaluated by assessment indicators is necessary in cases when quantitative evaluation is difficult. 2. As a preparation for PBRS, a brief procurement system by technical proposal for the landscape design and construction is necessary. 3. As a preparation for PBRS, activation of an environmental performance evaluation on experimental construction is necessary. 4. As a preparation for PBRS, a certification system of environmental performance on various landscape construction methods is necessary. 5. The Private Finance Initiative Project is the most similar to PBRS therefore, activation of the Private Finance Initiative Project is necessary in landscape architecture projects for park rehabilitation.

• Computers and Concrete
• /
• 제21권6호
• /
• pp.637-647
• /
• 2018

Numerical approach using finite element method has been used to evaluate the behaviour of reinforced concrete frame structure subjected to fire. The structure is previously designed in accordance with Eurocode standards for the design of structures for earthquake resistance, for the ductility class M. Thermal and structural response are obtained using a commercially available software ANSYS. Temperature-dependent nonlinear thermal and mechanical properties are adopted according to Eurocode standards, with the application of constitutive model for the triaxial behaviour of concrete with a smeared crack approach. Discrete modelling of concrete and reinforcement has enabled monitoring of the behaviour at a global, as well as at a local level, providing information on the level of damage occurring during fire. Critical regions in frame structures are identified and assessed, based on temperatures, displacements, variations of internal forces magnitudes and achieved plastic deformations of main reinforcement bars. Parametric analyses are conducted for different fire scenarios and different types of concrete aggregate to determine their effect on global deformations of frame structures. According to analyses results, the three-dimensional finite element model can be used to evaluate the insulation and mechanical resistance criteria of reinforced concrete frame structures subjected to nominal fire curves.

• 대한공업교육학회지
• /
• 제40권2호
• /
• pp.111-129
• /
• 2015

본 연구에서는 공업계 특성화고 마이스터고에서 NCS 기반 직업교육과정의 편성 운영 가능성과 기대 효과, 그리고 NCS 기반 직업교육과정의 효과적인 운영을 위한 지원 방안에 대한 전문교과 교원의 인식을 조사하고자 하였다. 이를 위해 공업계 특성화고 마이스터고의 전문교과 교원 286명을 대상으로 설문조사를 실시하였으며, 그 결과는 다음과 같다. 첫째, 공업계 특성화고 마이스터고 전문교과 교원들은 NCS를 기반으로한 인력 양성 및 활용 정책이 긍정적인 기대 효과를 얻을 수 있다고 인식하고 있었고, NCS 기반 직업교육과정이 학교 교육과정에 적용될 필요성이 크다고 인식한 반면, 2016학년도부터 NCS 기반 직업교육과정을 학교 교육과정으로 편성 운영하는 것은 시기적으로 무리가 있다고 인식하고 있었다. 둘째, 공업계 특성화고 마이스터고 전문교과 교원들은 NCS 기반 직업교육과정을 적용함으로써 산업체 교육 요구 분석, 산업체 직무 기반의 교육목표 및 내용 설정, 산업체 직무 기반의 평가, 교원의 교육과정 개발 및 운영 역량 향상, 산학협력 및 지역사회와의 연계 측면에서 효과가 있을 것으로 인식한 반면, 이에 대한 실현 가능성은 상대적으로 낮은 것으로 인식하였다. 셋째, 공업계 특성화고 마이스터고 전문교과 교원들은 NCS 기반 직업교육과정을 효과적으로 운영하기 위하여 학교 운영 측면에서는 실습기자재 재정비 및 확충, 실습수업의 대상 학생을 15~20명 수준으로 감축, 교원의 현장 교육 역량 강화, 교원 수급 지원, 산학협력에 기반한 현장 중심 교육의 내실화, 학습모듈 등 NCS 기반 교재의 정규 교과서화에 대한 지원이 필요하다고 인식하였다. 유관기관의 지원 방안 측면에서는 NCS 기반 직업교육과정에 부합하는 취업 지원 및 현장 교육의 제공, NCS 능력단위별 현장 교수 지원, NCS 기반 직업교육과정에 터한 현장 실무 교육프로젝트의 제공, 산업체의 직무능력 평가제 도입 및 운영이 필요하다고 인식하였다.

• 한국원자력학회:학술대회논문집
• /
• 한국원자력학회 2001년도 춘계학술발표회요약집
• /
• pp.540.2-540
• /
• 2001

• 한국원자력학회:학술대회논문집
• /
• 한국원자력학회 2002년도 춘계공동학술발표회요약집
• /
• pp.351.2-351
• /
• 2002

• 한국원자력학회:학술대회논문집
• /
• 한국원자력학회 2002년도 추계학술발표회요약집
• /
• pp.445.1-445
• /
• 2002

• 한국건설관리학회논문집
• /
• 제13권6호
• /
• pp.71-83
• /
• 2012

최근 행정중심복합도시와 혁신도시, 미군기지 이전사업을 중심으로 건설공사에서의 비용절감 및 품질향상, 기술개발 및 가치구현을 목적으로 기술제안입찰방식 적용이 확대되고 있다. 이로 인하여 기술제안입찰에서 중요 평가항목 중의 하나인 '생애주기비용 개선방안'에 대한 관심이 높아지고 있으며, 특히 건축물 생애주기비용에 대한 신뢰성 확보 및 객관적인 평가를 수행할 수 있는 방안을 마련하기 위해 노력하고 있다. 하지만 기술제안입찰에서의 생애주기비용 개선방안에 대한 적용사례의 부족, 원안에 대한 초기공사비의 왜곡, 불변가와 현재가의 혼재, 입찰업체간 산정기준의 모호성, 용어의 불명확성, 작성양식의 미흡 등의 문제점이 지적되고 있는 실정이다. 따라서 본 연구에서는 기술제안입찰에서의 평가항목 중 생애주기비용 개선방안에 대한 참여업체별 변별력을 확보하고 체계적인 생애주기비용 평가를 수행하기 위하여 작성지침 및 분석기준, 작성양식에 대한 개선방안을 제시하였다.