• 주택과사람들
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• s.76
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• pp.140-147
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• 1996

이 자료는 주택산업연구원이 지난 8월 20일 $\lceil$주택개량재개발사업 지연요인 분석 및 개선방안(6개지구 사례조사)$\rfloor$이라는 주제로 개최한 토론회 자료로서 발표내용은 발표자의 연구논문 최종단계에서 의견을 교환하는데 목적이 있다고 밝히고 있다. 이날 토론회에는 주택사업연구원의 김우진 수석연구원$\cdot$송현영 연구원이 발표자로 나섰으며, 본협회에서 2명을 비롯하여 건교부 $\cdot$서울시$\cdot$주택산업연구원$\cdot$주택사업공제조합$\cdot$대한주택건설사업협회 등에서 토론자로 참석했다.

• Proceedings of the KSME Conference
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• 2005.11a
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• pp.38.1-38.1
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• 2005

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1997.10a
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• pp.747-750
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• 1997

Using complex potentials and the concept of repeated roots for general solutions, logarithmic stress singularities and coefficient vectors for v-notched cracks in isotropic dissimilar materials are evaluated and demonstrated to have no influence on the logarithmic stress singularities.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2002.10a
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• pp.185-186
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• 2002

최근 수산물 수입자율화로 인해 냉동 수산물 뿐만아니라 활어 상태의 수산물이 대량으로 외국으로부터 수입되고 있어 국내 양식업이 상당한 어려움에 처해 있다. 특히 국내 뱀장어는 양식에 필요한 종묘의 공급이 매우 어려워 수입업자들은 외국으로부터 다양한 종의 실뱀장어 종묘를 대량으로 수입하고 있다. 국내산 뱀장어는 이식되는 다른 뱀장어에 비해 국민의 선호도가 높을 뿐만아니라 높은 가격으로 거래되고 있어 외국산 뱀장어가 국내산으로 둔갑되어 거래될 수 있다. (중략)

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2011.06a
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• pp.1069-1070
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• 2011

• Korean journal of applied entomology
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• v.34 no.3
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• pp.218-223
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• 1995

A nuclear polyhedrosis virus isolated from the oriental tobacco budworm larvae, Helicoverpa assulta (Guenee) was characterized by electron microscopy, SDS-PAGE, restriction endonuclease analysis and cross infectivity. The shape of a polyhedron was $1.0\mu\textrm{m}$ in average with icosahdral outline, and the virus particle was $65nm\times300nm$ in average with rod-shape. The nuclear polyhedrosis virus was contained a single nucleocapsid within a viral envelope embedded in a polyhedron. The polyhedral protein was composed of a single polypeptide with a M.W. of 31 Kd. The genome size of the virus by restriction endonuclease analysis was about 120 Kb. Among several nuclear polyhedrosis viruses, the nuclear polyhedrosis virus from Helicoverpa assulta (HaNPV) and Autographa california nuclear polyhedrosis virus (AcNPV) were infected the oriental tobacco budworm larvae.

• Proceedings of the KSME Conference
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• 2007.05b
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• pp.2366-2371
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• 2007

Spray combustion characteristics of a conducting fuel electrospray have been studied for clean combustion technology. The multiplexing system which can retain the characteristics of the cone-jet mode is inevitable for the electrospray application. Charged micro droplets can be obtained in almost uniform size during operating the electrospray in the cone-jet mode. This experiment device set up the multiplexed grooved nozzle system with the extractor. Using the grooved nozzle, the stable cone-jet mode can be achieved at the each groove in the grooved mode. This electrospray system was applied to the diffusion combustion. It is the first step to discover the diffusion combustion characteristics of the electrospray. In case of the single grooved nozzle electrospray, the diffusion flames are occurred at each jet of grooved mode and they are quite stable. The exhaust gas analysis was indicated that there is the critical point which can make very stable diffusion combustion.

• Journal of ILASS-Korea
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• v.20 no.2
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• pp.82-87
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• 2015

A nozzle with vortex generator was used to develop the low pressure nozzle with high atomization performance and the nozzle atomized the liquid by centrifugal shear forces. In order to analyze the atomization characteristics, a shadowgraphy method was used and the measurement of droplet size was performed by using laser diffraction analyzer. The liquid injection pressure was fixed as 0.03 bar which is very low pressure and the gas injection pressures were changed from 0 bar to 2.0 bar. As a result, the breakup was achieved at the air injection pressure of 0.25 bar and over. The nozzle with the orifice diameter of 0.4 mm and the orifice gap of 0.25 mm presented small droplet diameters under 50 at the air injection pressure of 0.75 bar.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.1412_1413
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• 2009

초고압 전력케이블용 기중 종단접속재에 사용되는 지지애자의 전기적 고절연 성능과 기계적 Compact화된 제품개발을 목적으로 Simulation Tool을 활용하여 전계해석을 수행하였고, 해석된 결과를 기초로 지지애자를 설계, 개발 하였다. 개발된 지지애자의 Sample을 채취하고 전기적, 기계적 시험을 통하여 신뢰성을 검증 하였다. 전계해석에 있어서는 Epoxy와 Porcelain 재료, Old type과 New type으로 구분하여 재료별, 구조별로 해석을 진행 하였다. 지지애자의 설계기준과 전기적, 기계적 시험 결과를 비교하여 개발된 제품의 특성에 있어서 얼마만큼의 안전율을 확보 할 수 있는지 알 수 있었고, Porcelain 지지애자와 비교하여 약 40%의 크기를 축소할 수 있는 전기적, 기계적 신뢰성이 확보된 지지애자를 개발 할 수 있었다.

• Tribology and Lubricants
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• v.22 no.4
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• pp.225-229
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• 2006

The issue with the drainpipe now a day is that they are laid underground. Causing us to perform additional work to repair, such as digging up the ground and peeling off the insulator that surrounds the pipe. And such series works are difficult that concession appears from government and municipal office. However, if we can save time and money. Performance of piping robot that we are studied in existing session through fixing unit and improvement of cutting bit shorten and wished to heighten work efficiency. And we are trying to develop a unit that can cut up the projecting parts which connects with the interior part of the drainpipes.