• Title, Summary, Keyword: Activation Strategy

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Activation analysis of targets and lead in a lead slowing down spectrometer system

  • Lee, Yongdeok;Kim, Jeong Dong;Ahn, Seong Kyu;Park, Chang Je
    • Nuclear Engineering and Technology
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    • v.50 no.1
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    • pp.182-189
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    • 2018
  • A neutron generation system was developed to induce fissile fission in a lead slowing down spectrometer (LSDS) system. The source neutron is one of the key factors for LSDS system work. The LSDS was developed to quantify the isotopic contents of fissile materials in spent nuclear fuel and recycled fuel. The source neutron is produced at a multilayered target by the (e,${\gamma}$)(${\gamma}$,n) reaction and slowed down at the lead medium. Activation analysis of the target materials is necessary to estimate the lifetime, durability, and safety of the target system. The CINDER90 code was used for the activation analysis, and it can involve three-dimensional geometry, position dependent neutron flux, and multigroup cross-section libraries. Several sensitivity calculations for a metal target with different geometries, materials, and coolants were done to achieve a high neutron generation rate and a low activation characteristic. Based on the results of the activation analysis, tantalum was chosen as a target material due to its better activation characteristics, and helium gas was suggested as a coolant. In addition, activation in a lead medium was performed. After a distance of 55 cm from the lead surface to the neutron incidence, the neutron intensity dramatically decreased; this result indicates very low activation.

Co-opetition Strategy for the Balanced Development of Busan Port

  • Lim, Joung-A;Ann, Ki-Myung;Rim, Il-Kyu;Lee, Sung-Yhun
    • Journal of Navigation and Port Research
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    • v.33 no.4
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    • pp.263-270
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    • 2009
  • Busan North port is facing crisis due to the opening of the New port. The North Port and NewPort are competing for a limited volume of cargoes and this competition is leading after all to price competition, lowering cargo work fee that may result in the failure of both This paper proposed the balanced development plans, which are the strategies of business tie-up and activation between the North Port and NewPort by introducing the strategy of "co-opetition" and the analysis for the success factor of co-opetition: to solve this operational problems on Busan port. It is found out that activation strategy is more successful co-opetition strategy than business tie-up strategy. The execution for the two co-opetition strategies will lead Busan Port to the balanced development as well as the enhanced competitiveness and will leap Busan port into global hub port as well.

A Study on the Activation Strategy for Female Maritime Officers using AHP

  • Jeong, Woo-Lee
    • Journal of Navigation and Port Research
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    • v.38 no.1
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    • pp.1-9
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    • 2014
  • As the ratio of women's socioeconomic participation expanded, this phenomenon appeared maritime industry. The advent of female seafarers will be the solution for the shortage of seafarer as well as for women's employment instability all over the world. This paper analyzed the state of present female maritime officers and suggested the activation strategy which preliminary female officers advised by AHP and STOW analysis. This paper finds to strengthen their superior aspects like professional knowledge, practical ability, job performance, improve the education system by gender, strengthen the career path and transform the policy for them by sensitively external changes by government and education institutions.

Activation-based Strategy and Spatial Strategy in Visual Search (시각탐사에서 활성화 기반 전략과 공간적 전략)

  • Lee, KangWoo;Shin, Myoung-Hee
    • Proceedings of the Korean Society of Computer Information Conference
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    • pp.149-151
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    • 2014
  • 주의(attention)를 어떻게 할당하는가는 정신물리학뿐만 아니라, 컴퓨터 시각과정을 모델링하는데 중요한 주제 중 하나이다. 기존 연구는 saliency와 같은 활성화 값에 의해서 주의탐사 순위가 결정된다. 본 논문에서는 주의탐사과정을 병렬처리를 통한 활성화 값 추출과정과 순차적 처리를 통한 공간적 전략과정으로 구분하였다. 단서패러다임에 기초한 계산모형을 이용하여, 실제 인간의 수행결과를 AUC와 Levenshtein 척도를 이용하여 비교하였다. Fixation point 비교에서는 인간과 활성화를 기반으로 한 계산모형의 수행은 높은 상관성을 가지고 있었다. 주의궤적 혹은 scanpath 분석에서는 활성화기반 전략보다는 공간적 전략 모형이 더 높은 유사성을 보였다. 이는 주의탐사과정이 병렬처리과정을 통해 얻어진 saliency에 의해서만 결정되는 것이 아니라, 목표물간의 근접성 등의 공간적 전략을 통해 순차적 (sequential) 경로가 생성됨을 의미한다.

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Strategy for activation of bioenergy industry (바이오에너지 산업의 발전을 위한 제언)

  • Lee, Jin-Suk;Park, Soon-Chul
    • 한국신재생에너지학회:학술대회논문집
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    • pp.234-236
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    • 2006
  • Bioenergy emerges as a promising option for achieving the sustainable growth. However, bioenergy has poor cost competitiveness to the fossil fuels such as oil and coal. So many countries either developed or developing actively works for the implementation of various bioenergies. In this paper, the various supporting policies for the activation of the bioenergy business in the developed countries have been analyzed. Through the work, the desirable strategy for the promotion of bioenergy in our country have been suggested.

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Activation Strategy of Engineering Interdisciplinary Design through Abroad Case (해외사례 분석을 통한 복합학제 설계교육의 활성화 방안)

  • Cho, Sung-Ku;Lee, Eue-Su;Lee, Yong-Han;Lee, Myoung-Chun;Youm, Se-Kyoung
    • Journal of Engineering Education Research
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    • v.11 no.1
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    • pp.117-125
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    • 2008
  • Today it is critical for all engineers to have the capability of interacting in teams with members of different background and to meet the challenges that they will encounters in their careers. To satisfy such needs multidisciplinary engineering-design courses are attracting more attentions than ever in the engineering education community. In this paper we analyze abroad cases of engineering interdisciplinary design. And we suggest an activation strategy of engineering interdisciplinary design.

A Study on Activation Strategy of Biosafety Training for LMO Research Safety Management (시험·연구용 유전자변형생물체(LMO) 안전관리를 위한 안전교육 활성화 방안)

  • Rho, Young Hee;Min, Wan Kee;Jeong, Gyu Jin
    • Journal of the Korean Society of Safety
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    • v.29 no.2
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    • pp.98-105
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    • 2014
  • Biosafety has become quite sensitive issues according to dramatic development of biotechnology and LMO(Living Modifying Organism) is one of the key issue in biosafety. This study is an exploratory research for investigating the activation strategy of biosafety training management in LMO research field. Based on the survey data, main results are derived through various statistical analysis methodology such as descriptive analysis, factor analysis, reliability analysis, analysis of variance and regression analysis. According to the analysis results, some activation strategies are required to reach the target such as extension of specialized biosafety training program, enhancement of safety consciousness from the undergraduate courses, introduction of appropriate safety regulations, unification of safety management and establishment of safety management system.

Development of the Integrated Curriculum as the Activation Strategy of the School Library Instruction (학교도서관 교육 활성화 전략으로서 통합교육과정 개발에 대한 연구)

  • Song, Gi-Ho
    • Journal of Korean Library and Information Science Society
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    • v.38 no.4
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    • pp.87-116
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    • 2007
  • The School Library Instruction(SLI) is one of the tool subjects for information literacy. Therefore, the connection with school curricula Is the activation strategy of SLI. The school library Integrated curriculum is Integrating a thinking strategy of SLI and subjects of subject education curricula. The purpose of the school library Integrated curriculum is to strengthen the educational role of teacher-librarian and self-directed learning. In this study, a presented example of the school library Integrated curriculum for the 10th students is based on the cross-curriculum subjects as a strategy of connection and integration.

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A Study on Strategy for Activation of Mobile Spatial Information Industry (모바일 공간정보산업 활성화를 위한 정책 제안 연구)

  • Kim, Tae-Hoon;Hwang, Jung-Rae;Lee, Sang-Hoon;Na, Jun-Yeop
    • Journal of Korean Society for Geospatial Information Science
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    • v.20 no.2
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    • pp.39-46
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    • 2012
  • The application area of spatial information such as urban planing, facility management, traffic service are expanded to new service areas such as environmental pollution, securing resources, u-City. In particular, the increased importance of spatial information application in mobile environment based on smart phone, a mobile spatial data infrastructure and related strategy suggestions to provide mobile spatial information service is required. In this paper, we derived strategy suggestions to foster the next generation strategic industry and proposed the role of public sector, the development of mobile spatial information services, the construction of mobile spatial information infrastructure and the stepwise strategies.