• Bulletin of the Korean Chemical Society
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• v.21 no.1
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• pp.141-144
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• 2000

• Proceedings of the KIEE Conference
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• 2008.04b
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• pp.34-37
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• 2008

물체의 움직임을 감지하는 이동물체 식별용 센서로는 적외선 센서, 초음파 센서, 마이크로파 센서 등이 많이 사용되고 있다. 본 논문에서는 감도가 우수하면서도 간단한 구조로 가격을 최소화하여 제품의 경쟁력을 최대화한 마이크로파 센서를 개발하였으며, 실제 시제품으로 제작하여 그 특성을 확인한 결과 우수한 특성이 나타남을 확인되었다. 본 연구진은 개발된 센서의 특성 확인 결과로부터 다음과 같은 두 가지 효과가 있는 것으로 판단하고 있다. 첫째, 제품의 성능은 유지하면서 간략한 구조를 갖는 회로의 구성은 제조 원가를 줄일 수 있으므로 충분한 제품 가격 경쟁력을 갖을 것으로 생각된다. 둘째, 간략한 구조를 갖는 회로의 구성은 제품의 소형화, 경량화를 가능케 하는'효과도 있을 것이다.

• Smart Media Journal
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• v.3 no.4
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• pp.9-15
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• 2014

A virtual platform models a processor core and the peripheral devices constituting the SoC in software. Major companies utilize a variety of platforms for product development with optimal SW+SoC integrated system architecture design and IP reuse based Top-Down design flow using a virtual platform. In this paper, we propose a virtual platform based on OpenRISC, an open source RISC based core. The proposed virtual platform supports high speed emulation of approximately 20 MIPS using DBT (Dynamic Binary Translation).

• Proceedings of the Korean Geotechical Society Conference
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• 2009.09a
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• pp.1188-1191
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• 2009

In this study, cyclic triaxial tests were performed with the samples which were anisotropically consolidated using irregular earthquake loading to consider in-situ condition and seismic wave. The consolidation pressure ratio(K) was changed from 0.5 to 1.0. The Ofunato and Hachinohe wave are applied as irregular earthquake loading and liquefaction resistance strength was estimated from excess pore water pressure(EPWP) ratio. As results of the cyclic triaxial tests, buildup of EPWP ratio increased as K value increased. It shows, that the isotropically consolidated sands is more susceptible to liquefaction than anisotropically consolidated sands under equal conditions such as confining pressure and dynamic loading.

• IEMEK Journal of Embedded Systems and Applications
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• v.18 no.1
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• pp.9-17
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• 2023

This paper relates to the development of a device for measuring the efficiency of a solar panel based on a variable constant current, and proposed a standard for reuse of the solar panel. By applying a variable constant current circuit to a solar panel efficiency measuring device, it was easy to apply a maximum power point tracking (MPPT) algorithm. In addition, a load dispersion method was applied to measure the efficiency of a high-capacity solar panel. and it is possible to solve a problematic thermal runaway during a MOSFET parallel operation by applying the load dispersion method. As a result of the experiment, the solar panel efficiency measuring device was able to accommodate a large solar panel of 350W, which is the maximum measurement goal. In this paper, the validity was confirmed through the 310W solar panel efficiency measurement experiment collected after removal.

• Proceedings of the Materials Research Society of Korea Conference
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• 1999.11a
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• pp.98-98
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• 1999

• Proceedings of the Materials Research Society of Korea Conference
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• 1999.11a
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• pp.180-180
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• 1999

• Proceedings of the Materials Research Society of Korea Conference
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• 1999.11a
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• pp.56-56
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• 1999

• Proceedings of the Materials Research Society of Korea Conference
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• 1999.11a
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• pp.99-99
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• 1999

• The Bulletin of The Korean Astronomical Society
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• v.15
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• pp.8.2-8.2
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• 1990