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박희용,임경빈,Pak, Hi-Yong,Lim, Kyung-Bin 대한설비공학회 1986 설비저널 Vol.15 No.4
In this study, the models for a double-diffusive thermohaline system heated from below were developed and the governing equations were established taking account of the density variation with time. The six order Runge-Kutta method was used for the solution of the simultaneous governing differential equations and the temperature and salt concentration distributions and height of each layer within the system were predicted. As the result of this study, it was found that the predicted values with the convective layer growing proportionality constant of 0.18 showed a good agreement with available experimental data. It was also found that the effect of density change with time on the temperature profile in the bottom convective layer could not be negligible.
고온 열환경 지하심층캐빈갱내 채탄로봇용 유압시스템 냉각성능개선연구
노홍구(Hong Koo Roh),임경빈(Kyung Bin Lim),조성환(Sung Hwan Jo) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
The study aims to analyzed and identify the heat transfer characteristics of mine robot for hydraulic system using numerical simulations in order to design it. The temperature comparison processes were done with various simulation conditions. In addition, the optimal conditions of mine robot design were proposed as simulation data in temp. distributions, thermal power, ambient temp, refrigerator cooling. Besides, Cooling research on control box was simulated in this study, as well.
전희국(Hee-Gook Jun),현근수(Geun-Soo Hyun),임경빈(Kyung-Bin Lim),이우현(Woo-Hyun Lee),김형주(Hyoung-Joo Kim) 한국정보과학회 2014 정보과학회 컴퓨팅의 실제 논문지 Vol.20 No.12
국제적 수준으로 성장한 한국의 영화 시장 환경은 더욱 타당한 자료 분석에 근거한 의사 결정수단을 필요로 하게 되었다. 또한 발전된 정보 환경으로 인해 실시간으로 생성되는 대규모 데이터를 신속히 처리하고 분석하여 보다 정밀한 결과를 예측할 수 있어야 한다. 특히 전처리 작업은 정보 분석 과정중 가장 많은 시간이 소요 되므로 대규모 데이터 기반 분석 환경에서도 합리적인 시간 내에 처리할 수 있어야 한다. 본 논문에서는 영화 흥행 예측을 위한 대용량 데이터 전처리 방법을 연구하였다. 영화 흥행 데이터의 특성을 분석해 전처리의 각 유형별 처리 방법을 설정했으며 하둡 기반 맵리듀스 프레임워크를 사용하는 방법을 사용하였다. 실험 결과 빅데이터 기법을 사용한 전처리가 기존의 방법보다 더 좋은 수행결과를 보이는 것을 확인하였다. The Korean film market has rapidly achieved an international scale, and this has led to a need for decision-making based on analytical methods that are more precise and appropriate. In this modern era, a highly advanced information environment can provide an overwhelming amount of data that is generated in real time, and this data must be properly handled and analyzed in order to extract useful information. In particular, the preprocessing of large data, which is the most time-consuming step, should be done in a reasonable amount of time. In this paper, we investigated a big data preprocessing method for predicting movie box office success. We analyzed the movie data characteristics for specialized preprocessing methods, and used the Hadoop MapReduce framework. The experimental results showed that the preprocessing methods using big data techniques are more effective than existing methods.
오부진(Boo Jin Oh),류봉조(Bong Jo Ryu),임경빈(Kyung Bin Lim),김효준(Hyo Jun Kim) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
The papers deals with the dynamic stability of a broke shoe under pulsating frictional forces. A lining part of brake systems is assumed as a distributed spring, and the supported elements of a shoe is assumed as translational springs for a constant distributed frictional force and pulsating frictional force. Govering equations are derived by the extended Hamilton's principle, and numerical results are calculated by finite element method. The critical distributed frictional force and instability regions were investigated for the change of distributed spring constants. translational spring constants.
표면위에 분사되는 원형 충돌제트의 열전달에 관한 실험적 연구
임경빈,최상경,송시영 한밭대학교 생산기반기술연구소 2001 생산기반기술연구소 논문집 Vol.1 No.1
The heat transfer characteristics on curved surfaces with an obliquely impinging circular jet were studied. In this study, the flat plate and hemispherically convex and concave surfaces were used. The Reynolds number used was Re=23,000. The nozzle-to-surface distance was L/d=4, 6 and 8. The jet angle was α=0˚ and 30˚. As the results of this study, the Nusselt number at the stagnation point decreases as the jet angle increases and has the maximum value for L/d=6. The secondary maximum Nusselt numbers in the downstream direction occur at long distances from the stagnation point as the jet angle increases or the nozzle-to-surface distance decreases. The Nusselt number distributions exhibit a displacement of the maximum heat transfer from the stagnation point to the upstream direction.
임경빈,최상경 한밭대학교 생산기반기술연구소 2001 생산기반기술연구소 논문집 Vol.1 No.1
A three-dimensional model for flow inside a fume hood enclosure with separating plate was developed and numerical computations were carried out to explore the flow pattern and possible path of contaminant transport under different operating conditions of the hood. The face velocity was maintained constant at its exhaust velocity value of 9.0 ㎧. The flow pattern and its contamination field for different window openings and shape of separating plate were studied. The result showed that with an increasing of the window opening, the velocity becomes slower and the recirculation region decreases. The results also showed that contamination performance in case of hood with separating plate was better than that without separating plate.
임경빈,송시영,이찬호 한밭대학교 생산기반기술연구소 2003 생산기반기술연구소 논문집 Vol.3 No.1
The purpose of this study is to investigate the performance evaluation of indoor diffusion rate of surplus heat generated from gas range and concentration distribution of combustion gas by position change of air- diffuser and range-hood with separating plate. A numerical analysis is performed with four cases of this ventilation system for kitchen. The results showed that thermal and flow distribution can be more effective, when air supply diffuser is located at middle position. Also, Comparisons of Indoor Air Quality(IAQ) are made between using separating plate and not using, IAQ was improved in case of using separating plate and also, kitchen exhaust hood concentration distribution was improved about 30%
내부 열경계조건을 고려한 채란 계사시설의 수치해석적 연구
임경빈,최상경 한밭대학교 산업과학기술연구소 2001 논문집 Vol.5 No.-
In this paper, the numerical study to predict air flow patterns and thermal environment characteristics in a window-less laying hen house was performed. The numerical model of this study was calculated with parameter for inlet velocity, inlet temperature reflecting upon interface thermal boundary condition. With 2.5% error, the calculated temperature distributions was predicted very well. Numerical results show that the case of 20∼23℃ inlet temperature with 7 ㎧ inlet velocity was better thermal environment condition. The results of this numerical study reflecting upon interface thermal boundary condition will be very useful for predicting thermal environment characteristics in laying hen house.