• Proceedings of the Computational Structural Engineering Institute Conference
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• 1998.10a
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• pp.342-351
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• 1998

The purpose of this study is to develop a central database and a database management system to store and manage information systematically from each module of an integrated structural design system. In order to efficiently express structural design process related to the data which is very complex, we used an object-oriented modeling methodology to propose the possibility to apply a database schema for application programs in an integrated system for reinforced concrete structural design. Based on this model, we developed an interface between each module and central database. After modeled by using object modeling technique, the database was mapped by the relational database table. Then the central database and the interface were programed by using Visual C/syo ++/, a windows environmental development tool.

• 한국신재생에너지학회:학술대회논문집
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• 2006.06a
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• pp.138-141
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• 2006

The application of photovoltaics into building as integrated building components has been paid more attention worldwide. Photovoltaics or solar electric modules are solid state devices, directly converting solar radiation into electricity; the process does not require fuel and any moving parts, and produce no pollutants. And the prefab building method is very effective because the pre-manufactured building components is simply assembled to making up buildings in the construction fields especially the sandwich panel. So, the purpose of this research is to integrated prefab building materials depending on the cooling type of PV modules. It is concluded that the prediction of BIPV system's performance should be based on the more accurate PV module temperature. From the basis of these results on the correlation of temperature and irradiation were obtained.

• Journal of the Korean Solar Energy Society
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• v.30 no.5
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• pp.56-62
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• 2010

The integration of PV modules into building facades or roof could raise their temperature that results in the reduction of PV system's electrical power generation. Hot air can be extracted from the space between PV modules and building envelope, and used for heating in buildings. PV/thermal collectors, or more generally known as PVT collectors, are devices that operate simultaneously to convert solar energy from the sun into two other useful energies, namely, electricity and heat. This paper compares the experimental performance of BIPVT((Building-Integrated Photovoltaic Thermal) collectors that applied on building roof and facade. There are four different cases: a roof-integrated PVT type and a facade-integrated PVT type, the base models with an air gap between the PV module and the surface, and the improved models for each types with aluminum fins attached to the PV modules. The accumulated thermal energy of the roof-integrated type was 15.8% higher than the facade-integrated regardless of fin attachment. The accumulated electrical energy of the roof-integrated type was 7.6% higher, compared to that of the facade-integrated. The efficiency differences among the collectors may be due to the fact that the pins absorbed heat from the PV module and emitted it to air layer.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2008.11a
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• pp.669-670
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• 2008

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2011.05a
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• pp.79-80
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• 2011

• Proceedings of the KSME Conference
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• 2005.11a
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• pp.12.2-12.2
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• 2005

• Proceedings of the KIPE Conference
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• 2017.07a
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• pp.596-597
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• 2017

For General Purpose Inverter dedicated in Motor drive, this market is blood market due to low market price. So, developing engineer must consider the cost reduction plan and do action. This inverter always needs to measure current and shunt solution can be one of cost reduction solution.

• Photonics industry news
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• s.17
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• pp.10-19
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• 2003

We have developed a single integrated wavelengh selection type - 8channel light source module. This module oscillates in 8 wavelengh at 200GHz(1.6nm) ITU channel intervals within the c-band (1530~1560nm), and can transmit at 1.25Gbps level.

• Journal of the Microelectronics and Packaging Society
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• v.4 no.1
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• pp.31-38
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• 1997

대용량, 고속정보처리가 요구되는 B-ISDN용 스위칭 모듈은 90년초부터 MCM으로 제작후 사용되어 왔다. 특히 MCM은 Data 처리의 고속성 및 회로의 고집적이 요구되는 ATM, GPS 및 개인휴대 통신 분야에 광범위하게 개발 및 응용되고 있다. 따라서 본논문에 서는 고속, 고집적 ATM 교환기의 Switching Module을 제품의 Low Cost와 다충회로를 간 단하게 구현할수 있는"Diffusion patterning"(이하 DP)공정과 기보유중인 Thin Film 공정으 로 MCM을 구현하였다.CM을 구현하였다.

• 한국신재생에너지학회:학술대회논문집
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• 2007.11a
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• pp.239-239
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• 2007