• 한국건설관리학회논문집
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• 제13권1호
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• pp.95-105
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• 2012

정부는 상징성, 창의성, 예술성과 고난이도의 기술이 요구되는 건설사업에 대하여 건설업체들 간의 기술 경쟁을 촉진하기 위한 방안으로 2007년 9월부터 새로운 발주방식인 기술제안입찰제도를 도입하였다. 그러나 지금까지 발주 및 수행된 기술 제안입찰 사례를 살펴보면, 모두 300억 원 이상의 대형공사를 중심으로 적용되고 있는 실정이다. 왜냐하면 300억 미만인 중 소형 건설공사에 기술제안입찰을 적용하기에는 평가항목이 복잡하고 고도의 기술제안이 요구되며 과다한 제출서류와 중 소형 건설공사 특징을 반영하기 어렵기 때문이다. 따라서 본 연구에서는 대부분 대형 건설공사에 적용되고 있는 현행 기술제안입찰제도를 중 소형 건설공사에 적합한 기술제안입찰제도의 평가항목 및 평가요소, 배점에 대한 개선안을 제시하였다. 본 연구에서 제시한 기술제안서 평가기준은 기존 대형공사 위주로 진행되었던 기술제안입찰제도를 중 소형 건설공사에 적용하고자 하는데 의의가 있고, 중 소형 건설공사의 기술제안입찰 도입 및 정착에 기여할 것으로 기대된다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 춘계학술대회 논문집 전기설비전문위원
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• pp.4-6
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• 2005

This paper deals with the technical map of diagnosis for power cable systems. For this purpose, failure status, failure and degradation causes, and newly suggested diagnostic techniques were investigated and analyzed. From the analysis, the technical map of diagnosis for power cable systems was proposed.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 1992년도 추계학술발표회논문집
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• pp.64-68
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• 1992

The demand for home automation system has increased in high-rise apartment houses. Home automation system is realized a more comfortable, more secure, more economical, more convenient, and more satisfying home life. The proposed system functions are meter reading, home security, energy saving, and house control. The technical requirements and configuration of home automation system are provided.

• 한국CDE학회논문집
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• 제10권2호
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• pp.89-96
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• 2005

In this paper, Internet based ship technical information management system has been developed as a means to accumulate, manage, share and utilize various distributed applications and information used for ship design and building. The information managed in the system are data from whole life cycle including concept design, basic design, detailed design, construction, operation and maintenance. In addition, using the developed system, integrated system framework is also proposed to integrate applications and database in concurrent engineering environment.

• 한국복합재료학회:학술대회논문집
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• 한국복합재료학회 2004년도 춘계학술발표대회 논문집
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• pp.30-33
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• 2004

This paper suggested that the technical specification of tilting train EMU for speed up on existing lines. High speed strategy of existing lines are the modification of railway system which are made on cant, lengths of transition curves, the catenary system and train system. Tilting technology is more useful a strategy for speed increases on existing lines with low investment needed. We performed a feasibility study which is considered out real track conditions and designed propulsion and braking system of tilting EMU system.

• 펄프종이기술
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• 제44권4호
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• pp.25-31
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• 2012

Ionic trash in furnish decreases retention and drainage performance of the microparticle retention system using recycled fibers in closed papermaking system. Two retention systems, such as the microparticle system and the PEO/cofactor system, were compared and analyzed to improve retention. The PEO/cofactor system achieved similar retention performance at low addition level as the microparticle system. Optimum ratio of PEO/cofactor dual polymer system was 1:10. Ash retention was increased when using the fixing agent. As the TMP ratio increased, the PEO/cofactor system was more efficient in retention and drainage than the other system. The high molecular weight and non-ionic polymer retention system had less effect on flocculation hindrance than the traditional electrostatic retention system.

• Nuclear Engineering and Technology
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• 제45권5호
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• pp.637-652
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• 2013

Instrumentation and control systems in nuclear power plants have been digitalized for the purpose of maintenance and precise operation. This digitalization, however, brings out issues related to cyber security. In the most recent past, international standard organizations, regulatory institutes, and research institutes have performed a number of studies addressing these systems cyber security.. In order to provide information helpful to the system designers in their application of cyber security for the systems, this paper presents methods and considerations to define attack vectors in a target system, to review and select the requirements in the Regulatory Guide 5.71, and to integrate the results to identify applicable technical security control requirements. In this study, attack vectors are analyzed through the vulnerability analyses and penetration tests with a simplified safety system, and the elements of critical digital assets acting as attack vectors are identified. Among the security control requirements listed in Appendices B and C to Regulatory Guide 5.71, those that should be implemented into the systems are selected and classified in groups of technical security control requirements using the results of the attack vector analysis. For the attack vector elements of critical digital assets, all the technical security control requirements are evaluated to determine whether they are applicable and effective, and considerations in this evaluation are also discussed. The technical security control requirements in three important categories of access control, monitoring and logging, and encryption are derived and grouped according to the elements of attack vectors as results for the sample safety system.

• 한국학교보건학회지
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• 제26권3호
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• pp.169-183
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• 2013

Purpose: The purpose of this study was to develop a safety education system and its contents for technical high schools including textbooks and instruction manuals for teachers. Methods: Reference materials and surveys were both employed in the study. Basic theory and relevant contents were estimated. The contents of safety education included in the current curriculum in technical high schools were evaluated and the laws and regulations related to safety education in such schools were analyzed by researching references. In addition, the status of safety education in technical high schools and the demand for safety education were reviewed. Results: The goal of safety education has been established based on the status and theory of the estimated safety education, The goal was classified into an overall goal and sub-goals, setting five areas of safety education. Furthermore, the contents of safety education, total 17 hours per year for each grade, were organized into 20 content goals and 47 activity elements. These activity factors of safety education has been systemized by grade. Conclusion: All technical high-schools need to carry out safety education based on the contents related to safety education. The operation of this systematic safety education will be more efficient and effective than the current system and the knowledge, attitude, and behavior regarding safety at technical high schools are expected to undergo positive changes. Moreover, the result from this study will contribute to the establishment of various policies for safety education in technical high schools.

• 한국펄프종이공학회:학술대회논문집
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• 한국펄프종이공학회 2009년도 춘계학술발표회 논문집
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• pp.237-244
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• 2009

• 전력전자학회:학술대회논문집
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• 전력전자학회 2017년도 전력전자학술대회
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• pp.64-65
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• 2017

This paper review the core technical trends of TESAL EV(Electric Vehicle) Motors. The object of this study analyzes electric vehicle's body appearance, motor cooling system, battery arrangement, battery management system (BMS), and super charging station etc.