• Journal of The Korean Digital Architecture Interior Association
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• v.5 no.1
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• pp.1-8
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• 2005

The major goal of this study is drawing design plan factors considering residents' life cycle and life style when remodeling design is needed. By drawing such design factors, the study will propose an alternative remodeling design plan. Such design method was defined as Multi-Dimensional module design method. And constructing data-system based on Multi-Dimensional module was secondary goal in this study. The details are as follows: Based on analysis of Residents' demand for remodeling and features of emotion-design applied to remodeling, the system which is suitable for application in remodeling design method was conducted. Based on the type of construction materials, the level value was set up according to emotion-factor application. Also, by conducting coding operation according to the distinction of construction materials, this study seeks the unit drawing method of information for constructing emotion-information system.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.14 no.11
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• pp.1198-1206
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• 2003

In this paper, a MMIC waveguide mixer module based upon the novel suggested mode converter for wave-guide-to-microstrip transition was fabricated and measured. The insertion and return losses of the mode converter was optimized by compensating the discontinuity effect between ridge and microstrip with the modification of 50 $\Omega$ microstrip line pattern. Due to the low loss nature of the mode converter, a millimeter wave MMIC mixer chip can be successfully applied as a waveguide module for mmW waveguide communication system. The measured results of the module showed the successful MMIC chip application in waveguide and the negligible degradation of the supplied chip specification.

• Nuclear Engineering and Technology
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• v.54 no.1
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• pp.138-151
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• 2022

Cladding ballooning and rupture are the important phenomena at the early stage of a severe accident. Most severe accident analysis codes determine the cladding rupture based on simple parameter models. In this paper, a FRTMB module was developed using the thermal-mechanical model to analyze the fuel mechanical behavior. The purpose is to judge the cladding rupture with the severe accident analysis code. The FRTMB module was integrated into the self-developed severe accident analysis code ISAA to simulate the PHEBUS FPT3 experiment. The predicted rupture time and temperature of the cladding were basically consistent with the measured values, which verified the correctness and effectiveness of the FRTMB module. The results showed that the rising of gas pressure in the fuel rod and high temperature led to cladding ballooning. Consequently, the cladding hoop strain exceeded the strain limit, and the cladding burst. The developed FRTMB module can be applied not only to rod-type fuel, but also to plate-type fuel and other types of reactor fuel rods. Moreover, the FRTMB module can improve the channel blockage model of ISAA code and make contributions to analyzing the effect of clad ballooning on transient and subsequent parts of core degradation.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.21 no.3
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• pp.49-55
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• 2022

The design of a battery package and a BMS module for applications using seawater rechargeable batteries, which are known as next-generation energy storage devices, is proposed herein. Seawater rechargeable batteries, which are currently in the initial stage of research, comprise primarily components such as anode and cathode materials. Their application is challenging owing to their low charge capacity and limited charge/discharge voltage and current. Therefore, we design a method for packaging multiple cells and a BMS module for the safe charging and discharging of seawater rechargeable batteries. In addition, a prototype seawater rechargeable battery package and BMS module are manufactured, and their performances are verified by evaluating the prevention of overcharge, overdischarge, overcurrent, and short circuit during charging and discharging.

• Proceedings of the Technology Innovation Conference
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• 2009.02a
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• pp.57-87
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• 2009

본 연구는 조선산업을 선도하고 있는 우리나라 D조선사와 S 조선사의 CAD system 부문에 있어 사용자 혁신 내용과 과정, 그리고 사용자 혁신이 기업의 경쟁 우위에 미치는 영향을 분석하고 complex product system에서의 사용자 혁신의 함의점과 CAD platform 자체의 진화에 따른 사용자 혁신의 한계를 조망한다. 사례 연구를 통해 본 연구가 발견한 결과는 다음과 같다. 1) 조선기업의 설계 및 제조 practice 및 관련 IT system 의 다양성과 특이성으로 인해 CAD system vendor 보다는 CAD system user 에 의한 application module 혁신이 cost와 benefit 차원에서 더 경제적이며, 2) 조선업체는 application module 혁신을 위해 사용자 need를 알고 있는 설계자와 CAD system 을 이해하고 있는 system 기술자로 구성된 팀 혹은 CoP를 통해 자체 개발하고 있고, 일부는 제3자 CAD application 업체에 위탁개발하기도 하며, 3) 조선과 같이 매우 복잡한 부품과 설계 및 제조 프로세스로 구성된 complex product system에서의 사용자 혁신은 자신의 암묵적인 노하우를 외부로 노출하지 않는 동시에 자사의 설계에서부터 제조, 구매, engineering, 그리고 경영 프로세스에 이르기까지 하나의 통합된 system 을 가능하게 함으로써 일정의 단축과 오작의 감소로 인한 품질과 원가경쟁력에 큰 기여를 하는 것으로 나타났으나, 4) 사용자 혁신이 일어나고 있는 CAD platform 자체가 대부분 외국계 전문업체 vendor 에 의해 지배되고 있고, CAD 기술의 진화(Solid 3D 등)로 인해 platform 자체가 변화함에 따라 그 위에서 진행되고 있는 application module 의 sustainability 가 위협받고 있다. 이러한 결과를 바탕으로 본 연구는 정부의 기술혁신 지원 정책과 기업의 혁신 전략에 대한 시사점을 제안하고 있다.

• The Transactions of the Korean Institute of Electrical Engineers P
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• v.65 no.4
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• pp.309-315
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• 2016

NCS is the nation-wide standard designed to standardize and systematize the capability(knowledge, technology and attitude) required for personnel to undertake their task in industrial site according to industry field and level of the task. In order to cope with rapidly changing labor market, individual has to be equipped with ability required for each relevant duty field. And company also requires worker to have basic working ability, professional knowledge or technical capability for relevant duty. Especially, the core competency, a fundamental element for all tasks, has been recognized as critical part not just in social level but also in company level. In that sense, the necessity of adding the core competence into regular education program has been vastly demanded. This study mainly deals with development of NCS-based learning module for information capability that most of industrial field want their employee to be equipped as basic skill. And, in particular, education achievement analysis for computer application capability, a subordinate capabilities of information capability, and its application method are mainly described.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 1995.04a
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• pp.160-169
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• 1995

This study presents an application of object-oriented methodology for structural dcsign process. A prototype system of integrated a structural design system is developed by introducing a structural analysis object model(SAOM) and structural design object model(SDOM). The SAOM module. which is modeled as a part of structural member, performs structural analysis using FEM approach and the SDOM module checks structural members based on Korea steel design standard. Above mentionedmodelsareabstraclencapsulatibleandreusable.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2006.10a
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• pp.147-148
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• 2006

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 1999.10a
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• pp.269-274
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• 1999

This paper aims to DNC application of car fuel tank die working. DNC system is consist of CAD, CAM software and CNC milling machine. CAM software is purpose to G-code generation for CNC programming. Then CAM software and CNC milling machine are connect to RS-232-C cable for networking.

• Journal of the Korean Solar Energy Society
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• v.31 no.3
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• pp.17-22
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• 2011

Techniques for mismatch loss minimization to increase the PV system efficiency are under development recently. In this paper, a method to make diagnosis of PV module mismatch is presented, which uses a concept of operating point factor. The method is based on the fact that the ratio of the incremental conductance of a PV module to instantaneous conductance is 1 when the module is operating at its maximum power point. The variations of module voltage and current are taking place by the maximum power point tracker in the power conditioning units of PV system. The effectiveness of the method is verified through an application to a real PV system.