• 한국ITS학회 논문지
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• 제7권5호
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• pp.147-158
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• 2008

ITS 근거법인 교통체계효율화법의 제정으로 ITS시스템이 활발히 구축, 개발되고 있다. 하지만 교통정보시스템의 상호 연계성을 고려하지 않아 교통정보서비스의 통합을 위한 활성화를 유도하지 못하였고, 이에 따라 국토해양부에서는 ITS 기술기준을 제정 고시하였다. 이에 본 연구에서는 센터와 단말기간의 정보교환에 대한 기본교통정보교환 기술기준 II 에 대하여 적합성 시험에 관한 연구를 실시하였다. 기술기준에 고시된 통신절차 분석을 수행하여 시험 항목을 정보요청시험과 정보제공시험으로 구분하였으며, 각 항목별로 세부시험 시나리오를 구성하였다 이에 대한 시험평가는 정보교환절차의 적합성과 데이터패킷 메시지의 정확도 등으로 구성하였으며, 기 제정된 기술기준에 의거하여 시험 횟수는 각 세부항목별 30회, 성공률은 95%를 기준으로 하였다. 본 연구는 ITS기술기준에 대한 적합성시험방법을 연구하여 국내 ITS시스템의 교통정보통합관리에 기여함을 목적으로 한다.

• 한국지진공학회논문집
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• 제18권5호
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• pp.231-240
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• 2014

This study reviews the status and validity of seismic design criteria (SDC) for major facilities in Korea, which are composed of performance criteria and technical standard. Various facilities with different seismic design response spectra are analyzed to identify their seismic performance and necessity of eventual retrofit. The results are used to derive improvement directions of SDC. It is also concluded that the technical standard should be improved after the revision of the performance criteria.

• Computers and Concrete
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• 제4권2호
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• pp.83-100
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• 2007

Applying a direct formulation for the enrichment of the displacement field an extended finite element (XFEM) scheme for modeling of cohesive crack growth is developed. Only elements cut by the crack is enriched and the scheme fits within the framework of standard FEM code. The scheme is implemented for the 3-node constant strain triangle (CST) and the 6-node linear strain triangle (LST). Modeling of standard concrete test cases such as fracture in the notched three point beam bending test (TPBT) and in the four point shear beam test (FPSB) illustrates the performance. The XFEM results show good agreement with results obtained by applying standard interface elements in FEM and with experimental results. In conjunction with criteria for crack growth local versus nonlocal computation of the crack growth direction is discussed.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.1768-1773
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• 2010

CEN/TS 45545 is Europe consolidation standard for fire safety on railway behicles. This is based on the International Union of Railways(UIC) and different European countries. It is intended to protect passengers and staff in railway in the event of a fire on board. It will be prepared in 2012. Based on this consolidate standard, they are going to make single market, for raising technical competitiveness, technical innovation and globalization of that standard. For this reason, European academies, manufacturers, and sub-manufacturers confer and stady animated about CEN/TS 45545. In Korea, get out the safety assessment for ues incombustible interior material, the needs of quantitative analysis on fire protection, demand on recognition of fire protection scenario, and define about fire load analysis are becomin more and more important. Therefore, this paper will estimate and compare Flammability, Smoke Density, Toxicity Index( this is the key point for appraised fire safety performance of material) between CEN/TS45545 and fire standards on railway vehicle. Then suggest criteria for fire safety on railway vehicles.

• 항공우주시스템공학회지
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• 제9권1호
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• pp.19-27
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• 2015

The Technical Standard Order articles are the parts and appliances for which the civil aviation authority designates as it is necessary to standardize for the expedited certification process and aviation safety. TSO articles were used on the type certified aircraft as replacement parts in the early days of TSO authorization system, but those articles are widely used on the newly developed aircraft as well in these days. In this paper, we compared the differences of the TSO authorization systems between FAA and EASA, and proposed the rulemaking items to improve Korean TSO authorization system and to contribute to growth of aviation industry.

• 한국환경복원기술학회지
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• 제16권2호
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• pp.23-40
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• 2013

The natural environment restoration industry has been newly included in the environment area of engineering technology. Accordingly, the enactment of a standard of estimate for determining the 'Cost plus Fixed Fee' method has become necessary for the implementation and vitalization of natural environment restoration projects. The purpose of this study is to determine the standards for which the prices for engineering projects are calculated with respect to the enactment of an engineering project standard of estimate in the natural environment restoration field. These include the scope of the technological work, standard area, manpower requirements by technical grade that are necessary for carrying out the technological tasks. Relevant laws and regulations, systems and precedent case studies were investigated and analyzed to establish a price calculation standard. The overall results of the analysis were used and applied to questionnaires, public hearings, and expert delphi techniques. The study showed the following results： The scope of the technological work was categorized into 'Biotopes', 'Eco-corridors' and 'Ecological restoration'. The standard area was set up as $1,000m^2$ for 'Biotopes' and $5,000m^2$ for 'Eco-corridors' and 'Ecological restoration'. The manpower requirements by technical grade that are necessary for carrying out the technological tasks were determined. The suitability of the costs, standard area, manpower requirements by technical grade of ordered engineering projects that are determined by applying the standard of estimate for natural environment restoration that may be enacted pursuant to this study may be effectively investigated and analyzed. Moreover, further studies on the calculation of standard prices that can ensure the stability of natural environment restoration projects will be necessary.

• 지적과 국토정보
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• 제47권2호
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• pp.121-133
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• 2017

그간 국내의 공간정보 기술기준은 개발, 관리가 하나의 기관이 아닌 다양한 기관에서 진행되어 표준 및 기술기준 간의 중복제정 및 내용 불일치 등의 다양한 문제가 지속적으로 발생되어져 왔다. 이러한 문제들은 단기간이 아닌 장기간 지속적으로 발생하였으며, 이를 해결하고자 그간 다양한 연구들이 진행되어져 왔으나 결국 근본적으로 해결되지 않았다. 하지만 현재 국내의 상황은 국가기술표준원의 '범부처 참여형 국가표준운영체계'을 통해 체계적이고 일원화된 표준체계 구축이 요구되는 환경으로 변모하고 있으며, 이와 관련하여 국토교통부는 국가공간정보 표준 선순환체계인 'KSDI 표준 체계'를 구축하였다. 본 논문에서는 이러한 흐름에 맞춰 그간 지적받아온 기술기준과 관련된 다양한 한계점들을 해결하기 위해, 기존 연구에 대한 고찰을 통해 기술기준의 문제점들을 살펴보았으며, 이에 대한 해결방안으로 기술기준의 재정의, 표준과 기술기준의 관계모델, 상호운용, 관리방안의 측면에서 그 방법을 정리하고 제시하였다.

• 한국신뢰성학회지:신뢰성응용연구
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• 제15권1호
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• pp.19-26
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• 2015

The amended law of railway safety in Korea has recently come into effect in order to strengthen the railway safety management system. The new law, which took effect March 1, 2014, will implement stricter oversight of railway companies. As a result, a company that manufactures railroad system or components for domestic use must obtain an approval in accordance with the technical specifications of manufacturer approval. Although Korea had established the legal system in enforcing railway safety, the government wants the companies continue to develop the more improved safety systems until they gain competitive edge on the world class railway manufacturers. This paper presents an in-depth analysis of the technical specifications for manufacturer approval in International Railway Industry Standard (IRIS), which is the global standard. This paper also proposes measures and guidelines that would help Korean manufacturers those who want further develop their safety management systems, as a prerequisite for them to obtain the manufacturer approval.

• 수산경영론집
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• 제34권1호
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• pp.45-67
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• 2003

Main target of fishing policy was enlargement of fishing catches in Korea after 1960s. This has caused sustainable decrease of the amount on the fisheries resource. In the result, fishing managements in Korea have suffered from aggravation of management. In this research, it is estimated the technical efficiency on Korean Off-shore Stow Nets Fishery that was made publication by Farrel in 1957. According to the analysis, Its were excessive to the gap of technical efficiency among Korean Off-shore Stow Nets Fishing boats. The gaps were excessive not only among each fishing managements but also by tonnage class and by region. Then we can recognize we need the change of Fishing Policy. That is, we should change for main target of fishing policy from enlargement of fishing catches to the policy of Price. And we should consider the supply of standard tonnage boats and specialization of fisheries by regions.

• 농업과학연구
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• 제33권2호
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• pp.179-193
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• 2006

Technical efficiency of semiforcing watermelon growers is 0.8248 on average, and distributed between 0.6744 and 0.9268. The result showed that semiforcing watermelon growers had by 18% of technical inefficiency and could be assumed that increasing technical efficiency could induce watermelon production more increase. Consequently, if growers' technical efficiency were improved while other environments were constant, watermelon production could be increased. Following the results from the inefficiency effect model, all assumption coefficient such as growers age etc, are significant at 10% level. Estimate of dispersion parameter ${\gamma}$ is 0.89, which confirms those differences between practical output and frontier output were derived from the technical efficiencies among growers. Differences of production system between high and low level growers in production efficiency were showed at side altitude, ventilation and heat-retaining in section of facilities and automation, soil test and calcium application in section of environment management, transplant preparation and duration of pollination in section of crop management and shipment place, sorting degree and management record analysis in section of business management respectively. As a result of analyzing consulting data by using standard diagnosis table of watermelon cultivation under structure which cultivated on semi-forced watermelon growers, gap between high and low level growers was 7.0 points in facility automation section, 7.1 points in environment section, 8.8 points in crop management section and 13.6 points in business management section, respectively, which were the biggest one among them. In case of excluding information-related items from the evaluation index of business management section, changes of business achievement are to occur. Therefore, it is recommended for us to review the standard diagnostic table of watermelon cultivation under structure by dividing evaluation index of management section into management and information.