• 대한기계학회논문집
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• 제12권5호
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• pp.1092-1096
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• 1988

본 연구에서는 생산관리 정보와 기술정보를 동시에 처리하는 생산정책(produ- ction strategy)인 컴퓨터 통합제조(CIM:Computer Integreated Manufacturing)를 위한 공구 관리 시스템(tool management system)의 개발에 관한 것으로 대상 공구는 NC 선 반공구로 제안하였다.

• 소음진동
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• 제10권1호
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• pp.107-116
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• 2000

The gear whine noise caused by tooth profile, elastic deformation, machining error, wear is directly correlated with the transmission error of mating gear. It is very important to build up the synthesized countermeasure by the modeling of the excitation forces and analyzing the vibratory characteristics. The mathematical models on the elements of vehicle transmission which is composed of helical gears, bearings, shafts and cases are developed. The elements are assembled by the substructure synthesis method. The cases of transmission are modeled by ANSYS. The system model of vehicle transmission is also verified by the experiments.

• 드라이브 ㆍ 컨트롤
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• 제13권2호
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• pp.51-58
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• 2016

The present study deals with the issue of clamping force control of an injection molding machine using 2-way cartridge valve based logic circuit. The operating principle for the cartridge valve is described with its construction and static opening behavior. Basic module circuits are designed first and analysed according to the basic functions. Then they are combined with a virtual design model for the clamping mechanism to simulate the control performance of the overall system. The backlash inherent in the mechanism is considered while evaluating the time-delay in the process of clamping force build-up. The effects of a couple of design parameters in backlash, i.e., interval and stiffness have been demonstrated in the time-domain.

• 한국물환경학회지
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• 제27권6호
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• pp.841-847
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• 2011

In this study, a method to determine the design capacities of nonpoint source (NPS) pollutant treatment facilities in urban areas was suggested. A facility capacity to treat 80 percent of total SS discharge was estimated by 2-year rainfall - runoff - build-up and wash-off simulation at Goonja drainage district in Seoul. For wash-off simulation, four wash-off models (EMC, RC, EXP, and Joo model) were used. As the results, 80 percent of total SS discharge could be treated with only 7.7~31.4% facility capacity of peak flow. The suggested method and results will provide a guideline to determine design capacities of NPS pollutant treatment facility in urban areas.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2007년도 춘계학술발표대회
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• pp.341-344
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• 2007

In this paper, a new temporal error concealment method for the new coding standard H.264/AVC is presented, which uses the high correlation between the motion vectors of neighboring blocks. By using the motion vector of neighboring MB of the lost MB, the MV of the lost MB are recovered. It is shown that under FMO coding method of H.264/AVC, the proposed method increases PSNR gain up to 2.85dB compared to build-in algorithm in the H.264/AVC test model and 2.59dB compared to Lagrange interpolation.

• 대한기계학회논문집A
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• 제31권6호
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• pp.635-643
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• 2007

As many engineers and technicians are involved in the design process of large scale and/or complex products, there are a lot of miss matches and interferences due to designers' faults and several kinds of CAD systems. Recently, CAD systems are applied to verify and check the assembly process. Digital Mock-Up(DMU) system, a tool to build a virtual mock-up in the design stage, has been used to prevent the interferences and miss matches during precision design processes. Using the virtual assembly tool, engineers are able to design precision and interference free parts without physical mock-ups. Instead of a single CAD source, several CAD systems are used to design a complex product. Several organizations are involved in the distributed design environment for heterogeneous multi-CAD assembly. XML and the lightweight CAD file are proposed for the multi-CAD assembly. XML data contains hierarchy of the heterogenenous multi-CAD assembly. STEP PDM schema and STEP ISO 10303-28 formations are applied to construct the XML data. The lightweight CAD file produced from various CAD files through ACIS kernel and InterOp not only contains mesn, B-Rep and topological data, but also is used to visualize CAD data and to verify dimensions. Developed system is executed on the desktop computers. It does not require commercial CAD systems to visualize 3D assembly data. Real-time interference and fitness checks, dimensional verification, and design and assembly verification are performed on the developed system. Assembly of heterogeneous models for a car is conducted to verify the effectiveness of the developed DMU system on the Internet.

• 연구윤리
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• 제1권2호
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• pp.11-13
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• 2020

Purpose: The author wants to specify scope of research, identify without giving burden, prevent unfair identification of the author, admit of production of the outcome, enact rules of identification, and build up foundation of development. Also, this study defines scope of publication of outcome of research to prevent unfair identification of authors and admit of them. Research design, data and methodology: The study described literary research, standard research, phenomenon research, and empirical result without methodologies, statistical analysis and scientific test and investigated operation system of KODISA cases. Results: At publication of findings of the research, researchers shall identify the ones of production of the finding to allocate help of the research. Conclusions: Scientific journals shall be controlled to develop ability and to grow up and have a system. Researchers shall give direction of other scientific journals. The study made efforts to be a model. KODISA Edition Team shall make an effort to keep and develop. So far, no regulation of identification of authors has produced disturbance so terminologies should be uniformed. Researchers shall keep rules of identification of authors to uniform and regulate identification of authors, conditions of authors, and order and correspondent authors. KODISA enacted rules of identification of authors for the first time in Korea to develop science.

• International Journal of Advanced Culture Technology
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• 제11권3호
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• pp.321-326
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• 2023

The purpose of this study is to create and present a formalized module of ISP (Information Strategy Plan), a smart factory consulting method that is helpful to companies or consultants who will build smart factories. Order of study is First, the theoretical research direction is established through the investigation of related papers. Second, ISP policy research practices are compared to derive practical implementation methods. Third, in order to derive a standardized module method related to the final smart factory ISP, related cases of the government and individuals are compared. As a result of previous research, ISP (Information Strategy Planning), a consulting methodology, is similar to Deming's PDCA, and is regarded as Plan (environment and current status analysis), Do (establishment of future model goals), Check (establishment of implementation plan), and Act (follow-up management). As a result of the study, we obtained the following results. The first step is to analyze the current status and identify the purpose of introduction and problems in plant operation. In the second step, establish a consulting plan and derive a proposal description, strategic task, and master plan. Step 3 establishes detailed action plans, evaluates consulting outputs and consulting, and reports performance. Step 4 is established as follow-up management consulting. The limitation of the study is that although related data were compared to develop the consulting methodology into a standardized module, FGI analysis through experts or Delphi survey were not conducted, so there is a limit to the reliability of the mapping results.

• 융합보안논문지
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• 제16권7호
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• pp.101-111
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• 2016

최근 정부 주요인사 대상 스마트폰 해킹과 인터파크사 고객정보 탈취 등 사이버위협은 이제 우리에게 현실적인 위협으로 다가오고 있고 이러한 위협은 사물인터넷 시대 도래로 인해 더욱 고도화될 것이며 이에 대응하기 위해 민 관간 사이버위협정보 공유에 대한 체계 정립은 반드시 필요하다. 미국 일본 영국 등 주요국은 공유기구를 설치하고 관련대책을 수립 시행하는 등 사이버위협정보 공유제도를 정착시켜 나가고 있으나, 우리나라는 몇 개 기관이 공유센터를 자체 구축하여 운영하고 있고 참여기관간 정보의 제공과 공유에 있어 불균형이 존재하는 등 제도적인 미흡으로 활성화가 되지 못하고 있는 실정이다. 이에 나날이 진화하는 사이버위협에 효과적으로 대응하기 위해 정보공유체계 운영주체의 명확한 설정, 민간 공공간 협업체계 운영, 통합적이고 자동화된 시스템 구축, 면책권 부여 등 법 제도 보완 등 국내에 적용 가능한 모델을 제시하고자 한다.

• 벤처창업연구
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• 제9권5호
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• pp.33-41
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• 2014

최근 들어 창업 수요가 증가함에 따라 다양한 분야에서 창업교육이 이뤄지고 있다. 아울러 창업교육의 양적인 증가와 더불어 체계적이고 효과적인 창업교육 방법의 전문성이 요구되고 있다. 이에 본 연구는 최근 주목받고 있는 창업 멘토링 교육 요인을 교육 콘텐츠 특성, 교육시스템, 멘토 역량으로 분류하여 이러한 요인들이 창업교육 만족도 및 창업의지에 미치는 영향을 실증적으로 검증하였다. 실증 분석 결과를 요약하면 첫째, 창업 멘토링 교육 요인중에서 교육 콘텐츠 특성과 멘토 역량이 창업교육의 만족도를 높게 하는 것으로 분석되었고, 창업 멘토링 교육 콘텐츠 특성과 시스템은 창업의지에도 긍정적인 영향을 미치는 것으로 분석되었다. 본 연구는 창업교육의 효과적인 방법으로 확산되고 있는 창업 멘토링 교육에서 우수한 교육 콘텐츠 확보와 멘토 역량 강화의 중요성을 강조함으로써 향후 다양한 분야에서의 창업 멘토링 운영방향을 제시했다는 점에서 시사점이 있다고 하겠다.