• Proceedings of the Korean Information Science Society Conference
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• 2011.06d
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• pp.186-189
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• 2011

공간정보 데이터 제품 사양은 공간정보를 생산에 요구되는 제반 절차를 문서화하고, 관리하기 위한 용도로 활용되고 있다. 본 논문에서는 수치지도 제품 사양을 시스템적으로 활용, 관리, 운용하기 위한 서비스 모델을 제시한다. 이를 통하여 수치지도 제품에 대한 접근과 이해도를 높임이고, 메타데이터 작성 비용을 절감하는 등 수치지도의 유통 및 활용이 보다 효율적으로 이루어질 수 있을 것이라 판단된다.

• Archives of design research
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• v.20 no.2 s.70
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• pp.65-76
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• 2007

The primary purpose of this study was to evolve integrated design process for Experiential Design which is based on the former study, 'The Influence of Cognitive Factors on the Creative Abilities in Design'. Experience is a transformation factor to all of the design processes, which has three phase of problem solving; Input, Process, and Output. We regard Experiential Design is a transforming process from concept to experience, and set up a mode) of Holistic Design Process (HDP), which consists of four domains: Four Causes, Thinking Modes, Sensory Modalities, and Creative Abilities. Revolving Sensory Modalities (SM), Creative Abilities (CA), and Thinking Modes (TM) around Product Design Specification (PDS) through a design process, Design Concepts ripen and mature into Externalization. Each component of Experiential Design (TM, SM, and CA) turns around the PDS. Here, experience is first perceived by the five senses. Then, the knowledge is formed, and the CA works for a problem solving. And TM controls all of these procedures. We regard these are a phenomenon of Experiential Design. The HDP can be helpful to develop valuable solutions and create a good experience.

• Proceedings of the Korea Concrete Institute Conference
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• 1998.10b
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• pp.894-899
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• 1998

To absorb the deformation of live load, thermal gradient, shrinkage and creep in bridge structures and general structures, expansion joint has to be established. Especially expansion joint for high-speed railway bridge has to accomodate the static and dynamic forces and it not only has the durability of itself but also maintain the durability of structure by preventing the leakage of water. The actual used product of expansion joint for high-speed railway bridge is only ones made in France, Germany and Japan. In this study, the development process and test results of developed expansion joint are introduced which has the functional operation and durability enough to apply to high-speed railway bridges, roadway bridges and general structures. The tests consist of fatigue-durability test of 3 million times by high-speed rail load, leakage test and jack-up test for verifying the possibility of exchanging it. The performance of developed expansion joint satisfy the specification of Korea High Speed Rail Construction authority.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.11a
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• pp.117-118
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• 2018

국제항로표지협회(IALA)는 담당 분야(AtoN, AIS, VTS, PNT)의 정보교환 표준개발을 위해 국제수로기구에서 개발한 S-100(범용 수로데이터모델)을 적용하기로 결정하고, S-200 시리즈의 제품 사양서(Product specification)을 개발하고 있다. 개발 중인 S-200 시리즈 제품 사양서로는 S-201 항로표지, S-210 IVEF, S-230 ASM, S-240 DGNSS 기준국 목록 등이 있으며 일부 표준은 개발 완성 단계에 있다. S-200 제품 사양서는 정보 교환을 위한 내용, 구조, 포맷, 심볼 등의 기술사항이 포함되어 있으므로 표준을 검증하거나 현업으로 적용방안을 검토하기 위해서는 테스트 베드를 통한 검증이 요구된다. 본 연구에서는 항로표지 분야 정보교환 표준인 S-200 시리즈 제품 사양서가 개발되고 있는 것과 관련하여 S-200 테스트 베드 설계 및 시범 개발 결과를 소개 한다.

• IE interfaces
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• v.8 no.1
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• pp.61-78
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• 1995

Warehouse planning or design is not a static, one-time activity. To survive in the constantly changing market warehouse design should be a continuous process in which the anticipated requirment are reflected on the current warehouse status. Thus, the goal of warehouse management is to effectively utilize the various warehouse resources to meet the varying customer requirment. This paper presents an engineering framework for warehousing system analysis and design from the perspective of a total system approach. The complexity pertinent to warehousing system analysis and design is first discussed, which mainly come from the interplay among product data, order data, equipment types, operating strategies, and functional specification of the overall system. The understanding of the complexity leads to a general structure and a conceptual design procedure for a warehousing system. The general structure is comprehensive enough to represent most warehousing and flexible enough to accommodate the more sophisticated ones. The conceptual design procedure portrays the high-level interelationships the design issues.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.8 no.3
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• pp.38-45
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• 2009

Recently, LCD Backlight Unit is being replaced from cold cathode fluorescent lamp(CCFL) to external electrode fluorescent lamp(EEFL) because the EEFL has high energy efficiency and long life. Also, it can reduce energy consumption and weight. So far, external electrode ring for EEFL is produced by sheet metal press forming process. Therefore it had low precision and much material loss. To solve these problems, Multi-Forming process that has five step forming process was invented. However, low productivity is another barrier. Product speed that is controlled by the rotational speed cannot be increased due to the unsatisfied design specification. The reason is that the gap between rolled two edge parts of the sheet plate is tightly inspected. Regarding this factor, the understanding of forming behavior to each process is inevitable. This paper describes the CAE analysis of the multi-forming process by PAM-STAMP.

• Transactions of the Korean Society of Machine Tool Engineers
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• v.10 no.5
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• pp.96-103
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• 2001

The quality requirements for thickness accuracy in cold rolling continue to become more stringent, particularly in response to exacting design specification from automotive customers. One of the major impacts from the tighter tolerance level is more unusable product on the head end and tail end of tandem mill coils when the mill is in transition to or from steady state rolling condition. A strip thickness control system for a tandem cold steel rolling mills is composed with blocked non-interacting controller and controllers for strip thickness and tension control of each rolling stands. An intelligent mathematical model included an elastic deformation of strip has been developed and applied to the field in order to predict the rolling force. The simulated results showed that the effect of elastic recovery should be included the model, even if the effect of elastic compression was not important.

• Transactions of the Korean Society of Machine Tool Engineers
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• v.11 no.6
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• pp.68-74
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• 2002

This research covers the development of axi-symmetric plastic elements for injection molding with insert steel such as high stiffness Sabot. The functional requirements of sabot are concentricity and fracture resistance about vertical and horizontal forces. For these, an analysis of characteristics of PEI(polyetherimide) polymer is performed by standard test specimen with accordance of ASTM test guidance. Moldflow analysis and simulation of injection molding process are carried out in order not only to estimate of the warpage but also to predict the characteristics of residual stresses which both product and structure of mold may have. A new vertical side injection machine and transverse mold have been constructed. Results of the measuring concentricity and fracture test after molding of sabot are satisfied to design specification over Cp $ratio{\geq}1.33$. Finally, this technique needs more research application to others axi-symmetric elements having different radius with insert steel md structure analysis from now on.

• Proceedings of the KSR Conference
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• 1998.11a
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• pp.24-29
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• 1998

To absorb the deformation of ,external live load, thermal gradient, shrinkage and creep in bridge structures and general structures, expansion joint has to be established. Especially expansion joint for high-speed railway bridge has to accomodate the static and dynamic forces and it not only has the durability of itself but also maintain the durability of structure by preventing the leakage of water. The actual used product of expansion joint for high-speed railway bridge is only ones made in France, Germany and Japan. In this study, the development process and test results of developed expansion joint are introduced which has the functional operation and durability enough to apply to high-speed railway bridges, roadway bridges and general structures. The tests consist of fatigue-durability test of 3 million times by high-speed rail load, leakage test and jack-up test for verifying the possibility of exchanging it. The performance of developed expansion joint satisfy the specification of Korea High Speed Rail Construction Authority.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.261-264
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• 2004

소프트웨어 제품 군 개발 방법은 모든 멤버 시스템에 대한 공통점과 차이점을 분석하여 공통된 소프트웨어 구조들과 요소들을 개발한다. 소프트웨어 제품 군 방법에서는 멤버를 구성하는 모든 시스템들의 공통점과 차이점을 동시에 관리해야 하므로 시스템 멤버들의 변화를 효과적으로 표현할 수 있는 방법이 필요하다. 이 논문에서 우리는, 요구 사양서와 변경 가능성을 기록하는 요구 변경 사양서를 바탕으로 시스템 운영 시나리오와 시스템 운영 변경 시나리오를 효과적으로 작성하는 방법을 제안하고, 이를 실제 시스템 개발에 적용해 보았다.