• Journal of Information Processing Systems
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• 제2권3호
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• pp.163-169
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• 2006

So far, little research has been conducted into developing a QAPM (Quality Assurance Process Model) for telecommunications applications on the basis of TMN. This is the first trial of the design of TMN-based QAPM on fault management with UML. A key attribute of the QAPM is that it can easily identify current deficiencies in a legacy system on the basis of TMN architecture. Using an empirical comparison with the legacy systems of a common carrier validates the QAPM as the framework for a future mode of the operation process. The results indicate that this paper can be used to build ERP(Enterprise Resource Planning) for a telecommunications fault management solution that is one of the network management application building blocks. The future work of this paper will involve applying the QAPM to build ERP for RTE (Real Time Enterprise) fault management solution and more research on ERP design will be necessary to accomplish software reuse.

• International Journal of Air-Conditioning and Refrigeration
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• 제14권3호
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• pp.85-93
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• 2006

The present study has been conducted to simulate dynamics of a gas engine-driven heat pump (GHP) for the design of control algorithm. The dynamic model of a GHP was based on conservation laws of mass and energy. For the control of refrigerant pressures, actuators such as an engine throttle valve, outdoor fans, coolant three-way valves and liquid injection valves were controlled by P or PI algorithm. The simulation results were found to be realistic enough to be applied for the control algorithm design. The model could be applied to build a virtual real-time GHP system so that it interfaces with a real controller for the purpose of developing control algorithm.

• Nuclear Engineering and Technology
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• 제38권7호
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• pp.675-680
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• 2006

The neutron transmutation doping of silicon (NTD), as a method to produce a high quality semiconductor, utilizes the transmutation of a silicon element into phosphorus by neutron absorption in a silicon single crystal. In this paper, we present the design of a neutron screen for a 6' Si ingot irradiation in the NTD2 hole of HANARO. The goal of the design is to achieve an even flat axial distribution of the resistivity, or $Si^{30}(n,{\gamma})Si^{31}$ reaction rate, in the irradiated Si ingot. We used the MCNP4C code to simulate the neutron screen and to calculate the reaction rate distribution in the Si ingot. The fluctuations in the axial distribution were estimated to be within ${\pm}2.0%$ from the average for the final neutron screen design; thus, they satisfy the customers' requirement for uniform irradiation. On the other hand, we determined the optimal insertion depths of the Si ingots by varying the critical control rod position, which greatly affects the axial flux distribution.

• 한국초전도학회:학술대회논문집
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• 한국초전도학회 2006년도 High Temperature Superconductivity Vol.XVI
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• pp.66-66
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• 2006

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2006년도 한국우주과학회보 제15권2호
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• pp.126-126
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• 2006

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 추계학술대회 논문집
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• pp.663-664
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• 2006

• 한국건축시공학회지
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• 제6권4호
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• pp.99-102
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• 2006

Although constructions are getting diverse, larger in size, and higher-storied, we witness that CM technologies are not coping with such a growing trend. In particular, CM, one of vulnerable areas, shall continue to be given priority hereafter. The research has been conducted with a strong focus on total design and supervision offices already specializing in CM projects, in order to prepare for the future activated CM markets. Authors have sought to find mistakes in the process of being in control of CM works and create measures to boost CM through case-study, documentary research, and interviews with experts. It excludes theoretical research, as many data are already accumulated domestic and abroad.

• 한국조사연구학회지:조사연구
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• 제8권1호
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• pp.55-79
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• 2007

본 연구에서는 2006년 5월에 KBS/SBS에서 공동으로 실시한 제4회 전국동시지방선거 출구조사 과정을 소개하는 동시에 출구조사 자료를 통해 투표자의 특성(성별 및 연령대)에 따른 투표성향과 시간대별 투표자 특성을 정리하고, 출구조사 선거구별 득표율을 예측치와 실제 개표결과를 비교하여 출구조사의 예측오차를 살펴본다. 이를 위해 이번 출구조사에서 적용된 전반적인 표본추출방법 및 실사과정을 정리하고, 출구조사에서 발생한 전체 오차를 편향과 표본추출오차로 분리하여 오차의 특성을 분석한다. 편향 발생원인 중 하나로 볼 수 있는 표본의 대표성을 검토하기 위해 출구조사 표본을 선관위에서 집계한 투표자 투표율 분석결과와 비교하여 평가한다. 아울러 이번 지방선거 출구조사에서 적용된 '층화 후 정렬계통추출법'에 따른 분산추정법을 적용하여 출구조사의 정확성을 표본추출오차 관점에서 살펴본다.

• International Journal of Contents
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• 제7권1호
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• pp.65-72
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• 2011

This paper aims to propose ways to revitalize the design industry of Busan by way of analyzing the status of the design and its related industries .We also propose the systematic ways to improve the employment and strengthen the global competitiveness of the design industry of Busan. The basic year of this study is 2010, and the goal years are 2011, 20115 and 2020, each of which represents the short-term, mid-term and long-term goal period, respectively. The content of our study includes the status of the design and its related industries and ways to revitalize them. Our study focuses on ways to revitalize the design industry through the particularization of the design industry in Busan and to strengthen the global competitiveness of Busan's strategic industries. For this, we have read up on the design and its related industries, surveyed the previous research work, and conducted the statistical analysis of design fields for the years of 2006-2008. In order to provide the revitalization plan in a more efficient way, we have also gathered the opinions of the experts through FGI (focus group interview).

• Journal of Mechanical Science and Technology
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• 제20권2호
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• pp.278-285
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• 2006

The present study has been conducted to simulate dynamics of a gas engine-driven heat pump (GHP) for design of control algorithm. The dynamics modeling of a GHP was based on conservation laws of mass and energy. For automatic control of refrigerant pressures, actuators such as engine speed, outdoor fans, coolant three-way valves and liquid injection valves were PI or P controlled. The simulation results were found to be realistic enough to apply for control algorithm design. The model can be applied to build a virtual real-time GHP system so that it interfaces with a real controller in purpose of prototyping control algorithm.