• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2008년도 정기학술발표대회 논문집
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• pp.808-812
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• 2008

최근 건축물들이 100층 이상이 되는 Super Tall 추세로 증가되어가면서 자연스럽게 건축의장 부분에서도 변화의 바람이 불고 있다. 기존 건축물들을 구성하던 중량벽체를 대신하여 비내력벽 개념의 커튼월 시스템 사용으로 변화되어가고 있다. 그러나 커튼월 시스템은 건축물의 외부환경인 공기와 빛, 열 등의 요소들로 인해 부하가 많이 발생하며 특히 커튼월 외피부분에 발생되는 결로 문제가 심각해지고 있는 실정이다. 특히 국내 건설시장의 여건 상 건축물들의 밀집화로 인한 통풍량 및 일조량 부족으로 결로발생은 더욱 심각해지고 있다. 하지만 아직까지 결로발생을 검토하는 표준화된 절차가 정립하지 않은 실정으로 건설사업관리자를 위한 결로발생 검토프로세스 마련이 시급하다 할 것이다. 본 연구는 커튼월 시스템의 대표적 타입인 Unitized 시스템과 Stick 시스템 선정하여 동일한 온도에서 상대습도의 변화에 따른 결로 발생범위 및 온도분포를 비교 분석하여 커튼월 결로성능을 평가하고 향후 결로발생 검토프로세스 마련을 위한 기초자료를 제공코자 한다.

• 한국결정성장학회:학술대회논문집
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• 한국결정성장학회 2000년도 Proceedings of 2000 International Nano Crystals/Ceramics Forum and International Symposium on Intermaterials
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• pp.179-193
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• 2000

Aluminium titanate (Al₂TiO5) with an excellent thermal shock resistant and a low the expansion coefficient was obtained by solid solution with MgO, SiO₂, and ZrO₂ in the Al₂TiO5 lattice or in the grain boundary solution through electrofusion in an arc furnace. However, these materials have low mechanical strength due to the presence of microcracks developed by a large difference in thermal expansion coefficients along crystallographic axes. Pure Al₂TiO5 tends to decompose into α-Al₂O₃ and TiO₂-rutile in the temperature range of 750-1300℃ that rendered it apparently useless for industrial applications. Several thermal shock tests were performed: Long therm thermal annealing test at 1100℃ for 100h; and water quenching from 950 to room temperature (RT). Cyclic thermal expansion coefficients up to 1500℃ before and after decomposition tests was also measured using a dilatometer, changes in the microstructure, thermal expansion coefficients, Young's modulus and strengths were determined. The role of microcracks in relation to thermal shock resistance and thermal expansion coefficient is discussed.

• 한국군사과학기술학회지
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• 제16권2호
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• pp.207-213
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• 2013

An infrared image synthetic method is proposed for infrared system simulation. The synthesis image uses a background IR image captured from real scene and a target IR modeling image. The radiances related with maximum and minimum temperatures of the background and target images are calculated from the Planck's blackbody equation. Based on them, the background and target images are compensated and synthesized. The proposed method is simulated and the IR target images are generated by RadThermIR software.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 D
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• pp.2531-2533
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• 2005

The proposed neural network technique is the real time computation method based theory of inter-node diffusion for searching the safety distances from the sudden appearance-objects during the work driving. The main steps of the distance computation using the theory of stereo vision like the eyes of man is following steps. One is the processing for finding the corresponding points of stereo images and the other is the interpolation processing of full image data from nonlinear image data of objects. All of therm request much memory space and time. Therefore the most reliable neural-network algorithm is drived for real-time matching of obejects, which is composed of a dynamic programming algorithm based on sequence matching techniques in moving objects.

• Spatial Information Research
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• 제7권1호
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• pp.29-37
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• 1999

최근 주택을 선택함에 있어 주거환경에 대한 관심이 고조되고 있으며 이 가운데 강 또는 산 등 특정 대상으로의 조망과 개방감 여부가 주택가격을 결정짓는 중요한 요인으로 작용하고 있다. 실제로 기존 재고 주택시장의 아파트에 이러한 경관가치가 프리미엄의 형태로 주택가격에 내재되어 있는 것으로 나타났다. 따라서 신규 주택을 공급할 경우 특정 대상으로의 조망이나 개방감 여부를 판단할 수 있는 수단이 필요한 상황이다. 이에 본 연구에서는 3차원 시뮬레이션 프로그램(3D Studio Max)를 이용하여 개방감을 측정하는 방법을 모색하고자 하였다. 연구 결과 3차원 시뮬레이션 프로그램을 이용하여 개방감의 유무와 정도를 파악하는데 유용한 수단으로 이용될 수 있으며 이외의 다양한 목적으로도 활용될 수 있음을 제시하였다.

• 한국정밀공학회지
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• 제18권11호
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• pp.155-160
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• 2001

To achieve high precision cutting as well as production capability in the machine tool, it is needed to develop excellent rigidity statically, dynamically and thermally as well. In order to predict the qualitative behavior of a machine tool, simultaneous analysis of mechanics and heat transfer is required. Generally, machine tool designers have solved designing problems based on partial estimation of the specified rigidity. This study clears the inter-relationship between therm, and propose multi-phase optimization of machine tool structure using a genetic algorithm. The multi-phase solution method is consists of a series of mechanical design problem. At this first phase of static design problem, multi-objective optimization for the purpose of minimization of the total weight and static compliance minimization is solved using the Pareto Genetic Algorithm.

• 한국어업기술학회:학술대회논문집
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• 한국어업기술학회 2001년도 추계 수산관련학회 공동학술대회발표요지집
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• pp.243-244
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• 2001

Vibrio choleae non-O1 has been reported to cause food borne gastroenteritis. This strain produces therm()stable direct hemolysin (NAG-rTDH) similar with that of Vibrio parahaemolyticus. As a result of rabbit ligated intestinal loop test, TDH caused fluid accumulation and is considered to be the major virulent factor. Hemolysis by TDH has been reported to cause colloid osmotic lysis of erythrocytes. (omitted)

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.234-235
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• 2018

The development of insulation,the most important factor, is slow. The curtain wall market is getting bigger as the bulidings are getting bigger, but the insulation of the window is getting a problem. In order to solve this problem, we want to develop the insulation block used in the window frames. We will examine the insulation effect by using the existing Azon insulation block and the thermal worm convex which is to be developed with Therm 7.4 program.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.267-268
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• 2018

The purpose of this study was to analyze the thermal performance of a cladding system which developed for easy maintenance and flexibility and installed on a long-life housing. The developed cladding systems were finished mock-up test at an authorized certification laboratory and were satisfied with the standard of the external wall system. The surface temperature and linear thermal transmittance of the cladding system were investigated by using the THERM as a simulation program. The joining part between the cladding systems had a weakness of condensation resistance. The surface temperature of the joining part was improved by filling and adding insulation.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1996년도 추계학술대회 학술발표 논문집
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• pp.234-238
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• 1996

In this paper, Plasma-Enhanced Chemical Vapor Deposition (PECVD) modeling using Polynomial Neural Networks (PNN) has been introduced. The deposition of SiO2 was characterized via a 25-1 fractional factorial experiment, was used to train PNNs using predicted squared error (PSE). The optimal neural network structure and learning parameters were determined by means of a second fractional factorial experiment. The optimized networks minimized both learning and prediction error. From these PNN process models, the effect of deposition conditions on film properties has been studied. The deposition experiments were carried out in a Plasma Therm 700 series PECVD system. The models obtained will ultimately be used for several other manufacturing applications, including recipe synthesis and process control.