• 품질경영학회지
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• 제42권3호
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• pp.279-290
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• 2014

Purpose: The purpose of this study is to propose adoption of QFD and Stage-gate in order to analyze the quality of korea defense system. Methods: Drawing change data of initial production phase in korea defense system were anlayzed and a practical method was proposed. Results: The results of this study are as follows; Off line Quality Control should be introduced in development phase. Specially, in case of defense system, the best method is QFD(Quality Function Deployment) and Stage-gate process. At first, QFD 1 step defines product planning from VOC(Voice Of Customer), QFD 2 step specifies part planning from product planning, QFD 3 step defines process planning from part planning, QFD 4 step defines production planning from previous process planning. Secondly, Stage-gate process is adopted. This study is proposed 5 stage-gate in case of korea defense development. Gate 1 is located after SFR(System Function Review), Gate 2 is located after PDR(Preliminary Design Review), Gate 3 is located after CDR(Critical Design Review), Gate 4 is located after TRR(Test Readiness Review) and Gate 5 is located before specification documentation submission. Conclusion: Off line QC(Quality Control) in development phase is necessary prior to on line QC(Quality Control) in p roduction phase. For the purpose of off line quality control, QFD(Quality Function Deployment) and Stage-gate process can be adopted.

• 시스템엔지니어링학술지
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• 제18권2호
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• pp.24-39
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• 2022

For the success of the plant project, it is necessary to review the project's progress through technical and business reviews at an appropriate time, such as design and construction, and determine whether to invest or to proceed with the project to manage risks. In particular, since the plant development projects are not mass-produced, trial and error in design and construction can have severe impacts in terms of cost and schedule. To this end, gate reviews are currently being conducted in plants and other industrial sectors, but there are few studies on how to conduct gate reviews suitable for the plant field. In addition, there is little literature to refer to when conducting gate reviews. So, in this study, we present an overall framework that includes the types of gate reviews to be performed and items to be checked in each gate review on small and medium-sized plant development projects in which the owner directly develops and operates plants.

• 세라미스트
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• 제9권4호
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• pp.58-71
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• 2006

Scaling of the gate stack has been one of the major contributors to the performance enhancement of CMOSFET devices in past technology generations. The scalability of gate stack has diminished in recent years and alternative gate stack technology such as metal electrode and high-k dielectrics has been intensively studied during the last decade. Tody the performance of high-k dielectrics almost matches that of conventional $SiO_2-based$ gate dielectrics. However, many technical challenges remain to be resolved before alternative gate stacks can be introduced into mainstream technology. This paper reviews the research in alternative gate stack technologies to provide insights for future research.

• 한국안전학회지
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• 제32권2호
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• pp.85-91
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• 2017

When the shell-type roller gate is partly open, at a certain height the large vibration is caused due to resonance and the vibration can cause damage to the gate. In this study, the review on amplitude of vibration and the possible resonance occurring at the time of opening or closing of gate is performed. Throughout the natural frequency analysis, the installation location of the measuring instrument was selected. On opening or closing of gate, the measurement of gate vibration is performed. The natural frequencies according to the opening range of the gate is analyzed. As a result of measurement and analysis, we proposed ranges in which vibration occurs largely and resonance is predicted as an avoiding open ranges, or the safe opening or closing of the shell-type roller gate. The application of this paper's avoiding open range estimation method of shell-type roller gate can be utilized as the basic data for the systematic and rational maintenance management of dams and submerged weirs in the future, and it is expected that this study can bring forth.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2003년도 정기총회 및 추계학술대회
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• pp.301-306
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• 2003

The main gate of university is a symbolic role to grasp the its activities within a limited area. The form or shape is various at its circumstances such as activity type, region, etc. The study aimed at offering the information to grasp the fixed quantity to an university gate plan which analyzed a psychological judgment criteria according to form or shape characteristics of the university main gate. It selected ten universities through a classification of the types. The twenty adjective phrases were extracted by review of the further research. After then, it extracted to draw high adjective in observers visual image formation. This study analyzed the preference, symbolized representation of the university main gate. The results are summarized as follows : 1. The symbol and representation of form has a high correlation. In other words, the symbolic scale would be high positively when the representation scale be high. 2. Eight items among the twenty adjective items appeared to explain the university main gates. The twelve items of them wouldn't be related to grasp the main gate

• 대한전기학회:학술대회논문집
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• 대한전기학회 1997년도 하계학술대회 논문집 F
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• pp.2213-2216
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• 1997

Efficient Switching of IGBT's requires fast gate drivers with high peak currents. This Paper will review the requirements for effient, reliable gate drive of IGBT's and behaviour of an IGBT switching chacteristcs. The purpose of the present paper is to investigate the switching loss mechanisms in IGBT such as MOSFETs in order to give a support to designers of IGBT gate drive circuits in selecting the more appropriate IGBTs to be used on the basics of design repuirements.

• 한국산학기술학회논문지
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• 제21권11호
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• pp.226-232
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• 2020

Stage-Gate 프로세스는 신제품을 아이디어에서 출시로 옮기기 위한 개념 및 운영 모델로, 다양한 신제품 개발 및 연구개발사업에 적용되고 있다. Stage-Gate는 신제품을 시장에 출시하는 것을 목표로 하는 시장 지향적 모델이므로, 대구광역시와 시흥시를 대상으로 실증사업을 진행 중인 스마트시티 혁신성장동력 프로젝트의 운영·관리에 적절히 도입 및 응용 가능하다. 또한 스마트시티는 다양한 혁신 기술 간 융·복합적 특성을 갖는데, Stage-Gate 도입 시, 이를 세분화하여 연구 기관별 성과물 중심의 성과 관리가 가능해진다. 따라서 스마트시티 혁신성장동력 프로젝트(NSSCP: National Strategic Smart City Program)는 국가연구개발사업 최초로 투자 효율성 제고와 연구 성과의 품질 향상, 성공적인 실증 및 사업화를 위하여 Stage-Gate를 적용하였다. 본 논문은 State-Gate 도입 1~2차년도 운영 결과를 검토하고 전문 기관, 연구 기관, 관문심사위원의 의견을 분석하여 향후 차년도 평가체계 운영과 타 연구과제에 적용을 위한 보완 및 개선사항을 제시하였다. Stage-Gate 방법론에 과도하게 몰입되어 경직된 운영에 따른 비효율을 경계하고 해당 사업의 실정에 최적화하여 운영한다면, 스마트시티의 융복합·다학제적 특성에 맞게 성과물 유형에 따른 유연한 평가가 가능할 것으로 기대된다.

• 한국항해항만학회지
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• 제30권5호
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• pp.389-396
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• 2006

최근의 항만 환경에서는 분리된 선석의 통합이 활발히 진행되고 있으며, 통합의 필요성도 높아지고 있다. 그러므로, 기존의 게이트들의 활용이 컨테이너터미널에서의 차량의 체재시간 감소와 차량 통행량 분산 측면에서 검토되어야 한다. 본 연구는 통합게이트와 분리게이트의 운영효과를 분석하였다. 본 연구는 두개의 개별 선석 통합시 게이트 운영의 효율성이 높은 분리게이트시스템을 제안한다.

• 한국건설관리학회논문집
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• 제11권3호
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• pp.43-54
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• 2010

최근 증가하고 있는 도시환경정비사업, 재개발 사업 등과 같이 민 관이 함께 주관시행주체로서 참여하는 도시재생사업은 관리영역 혹은 주관주체에 따라 다수의 독립된 프로젝트로 구분할 수 있으며 각 프로젝트는 고유의 업무 프로세스에 의해 수행된다. 다수의 프로젝트가 병행 혹은 순차적으로 진행됨에 따라 프로그램 거버넌스 개념이 적용된 관리방안으로써 사업단 계별 검토와 협의가 요구되는 지점(Gate)을 시행주체와 다수의 참여자가 공통으로 인지하고 프로젝트의 특성을 반영하여 설정하는 것이 중요하다. 또한 사업단계별 이해관계자의 역할과 책임이 규정되고 의사결정을 위한 객관적인 필요정보가 공유될 수 있을 때 신뢰가 형성되며 결국 이해관계자간의 상충구도에서 협력구도로의 전환을 기대할 수 있을 것이다. 따라서 본 연구에서는 도시재생사업과 같은 메가프로젝트(Mega Project)의 시행주체가 사업관리를 효과적으로 수행할 수 있도록 사업단계별 주요 의사결정 지원도구로서 게이트웨이 리뷰(Gateway Review) 체계 구축을 제시한다.

• Molecules and Cells
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• 제40권4호
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• pp.243-253
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• 2017

Eukaryotic cilia are organelles that project from the surface of cells to fulfill motility and sensory functions. In vertebrates, the functions of both motile and immotile cilia are critical for embryonic development and adult tissue homeostasis. Importantly, a multitude of human diseases is caused by abnormal cilia biogenesis and functions which rely on the compartmentalization of the cilium and the maintenance of its protein composition. The transition zone (TZ) is a specialized ciliary domain present at the base of the cilium and is part of a gate that controls protein entry and exit from this organelle. The relevance of the TZ is highlighted by the fact that several of its components are coded by ciliopathy genes. Here we review recent developments in the study of TZ proteomes, the mapping of individual components to the TZ structure and the establishment of the TZ as a lipid gate.