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이준범,Lee Byoung-hee,박정준,Hong Jeong In,Lee Dae-Weon 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.3
The tobacco whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae), is a serious pest that transmits tomato yellow leaf curl virus (TYLCV) in tomato. The tobacco whitefly exhibits morphological similarity with the greenhouse whitefly, Trialeurodes vaporariorum (Hemiptera: Aleyrodidae) which also damages various plants in the green house. Therefore, it is very important to quickly and accurately diagnose whiteflies for applying pest manage ment strategies. In this study, we used a loop-mediated isothermal amplification (LAMP) assay to quickly and effectively detect B. tabaci. Primer sets were investigated for the specificity of B. tabaci by visible detection of the target DNA fragment. Two primer sets for pheromone biosynthesis activating neuropeptide (PBAN) gene were obtained from transcriptomic analysis of B. tabaci biotype Q. The PBAN-based LAMP primer set showed specific amplification of the target region. The optimal conditions for B. tabaci detection were 60 ◦ C for 60 min with four LAMP primers of PBAN. The minimum amount of genomic DNA required for visible detection was 100 ng. These results suggest that the PBAN-based LAMP assay can be applicable for field monitoring of B. tabaci.
Moving Mesh를 이용한 PCV 밸브의 내부유동 수치해석
이종훈(J. H. Lee),이연원(Y. W. Lee),김재환(J. H. Kim) 한국동력기계공학회 2005 한국동력기계공학회 학술대회 논문집 Vol.- No.-
A great deal of exhaust gas inside a combustion room goes out through exhaust pipe but residual gas, is called "Blowby gas", enters the crankcase through a small gap between the piston and the cylinder wall. Here, if the crankcase isn't vented, this causes many bad effects such as lubricant oil contamination, corrosion by that and crankcase explosion by rising pressure. So, most automobiles are constituted with a PCV (Positive Crankcase Ventilation) system to prevent previous problems. PCV valve is the most important part in this ventilation system. When companies are manufacturing new engines, engineers are designing it depending on their experiments than theoretical knowledge. Much effort and many times are needed for new development. This study will show quantitative results to increase the possibilities of reduction of developing time.
Characteristics of ZnO Films Deposited on Plastic Substrates at Various RF Sputtering Powers
J. J. Kim,이종훈,J. Y. Lee,D. J. Lee,B. R. Jang,김홍승,W. J. Lee,조채용,J. H. Kim 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.5
Zinc-oxide (ZnO) films were deposited on polycarbonate (PC) and polyethersulfhone (PES) substrates by RF sputtering at room temperature. We investigated the effect of sputtering power (range: 100–200 W) on the structural, optical, and electrical properties of the deposited ZnO films. X-ray diffraction measurements revealed that the ZnO films deposited on both substrate types had a (002) preferred orientation associated with the hexagonal phase. While the ZnO film with the optimal structural properties was obtained at a sputtering power of 175 W, films deposited at powers around 100 W showed a stable optical transmittance of over 85 % over the visible range and linear electrical conductance.
뇌병변 소아환자의 기립보조기 사용 시 접촉 패드 유형에 따른 근활성도 비교
이종훈(J. H. Lee),오민우(M. W. Oh),하종규(J. G. Ha),서재용(J. Y. Seo),황화식(H. S. Hwang) 한국재활복지공학회 2014 재활복지공학회논문지 Vol.8 No.3
본 연구에서는 Pneumatic air fitting system을 적용한 기립보조기 제품을 뇌병변 소아환자를 대상으로 기립보조기의 신체 고정용 폼패드(foam pad)와 에어패드(air pad) 사용 시, 뇌병변 장애아동들의 체간 및 하지근육의 수축 양상을 비교·분석하였다. 연구결과, 패드(foam pad vs. air pad) 유형에 따른 근육별 근력 활성도는 차이가 있었다. 이러한 차이는 큰 동작(식사동작)에서 크게 나타나고, 작은 동작(쓰기동작, 읽기동작)이 작게 나타났다. 이는 Pneumatic air fitting system을 적용한 기립보조기 제품 사용 시, 기존 폼패드에 비해 사용자에게 좀 더 편안함을 제공하는 것으로 나타났다. This study conducted a comparative analysis of the contraction pattern of trunk and lower limbs muscles of handicapped children with brain lesions during the use of foam pad and air pad for fixing a standing table to the body for pediatric patients with brain lesions using a standing table product applied with a pneumatic air fitting system. There was a difference in the measurement of muscle strength activity by muscle in accordance with pad type (foam pad vs. air pad). A large difference was found with big movements (movements of eating), while a small difference was discovered with small movements (writing and reading movements). This was found to furnish a little more comfort to users compared with the existing foam pad during the use of a standing table product applied with a pneumatic air fitting system.
CORBA 기반 환경에서의 멀티미디어 응용을 위한 스트림 통신 서비스의 설계
이종훈(J.H.Lee),김남용(N.Y.KIM),왕창종(C.J.Wang) 한국정보과학회 1997 한국정보과학회 학술발표논문집 Vol.24 No.2Ⅲ
CORBA는 분산환경에서의 표준 객체처리 기술로서, 분산 응용을 개발하는데 있어 많은 장점을 제공한다. 그러나 현재의 CORBA 2.0 규약에서는 멀티미디어 응용 개발에서 중요하게 요구되는 오디오/비디오와 같은 연속 미디어의 전송과 처리에 대한 규약은 제공하지 못하고 있다. 따라서, 본 연구에서는 오디오, 비디오와 같은 연속 미디어의 전송과 처리를 위해 스트림 기반 통신 서비스를 설계하였다. 이를 위해 스트림 전송에 필요한 여러 요소들을 정의하고, 이들 간의 동작 메커니즘을 설계하였다. 또 이를 기반으로 CORBA 스트림 통신 서비스를 설계하여 각 클크라이언트의 통신모듈을 제어할 수 있도록 하였으며, 이를 통해 클라이언트의 부담을 감소시켰다. 제안된 통신 서비스는 화상회의, 주문형 비디오, 원격 교육 등과 같은 분산 멀티미디어 응용 개발시 기반 서비스로 이용될 수 있다.
이종훈(J.H. Lee),한병윤(B.Y. Han),곽수민(S.M. Kwak),이연원(Y.W. Lee),김찬욱(C.W. Kim) 한국전산유체공학회 2003 한국전산유체공학회 학술대회논문집 Vol.2003 No.-
In order to analyze the heat transfer phenomena in the plasma flames, a mathematical model describing heat and fluid flow in an electric arc has been developed and used to predict heat transfer from the arc to the steel bath in a DC Electric Arc Furnace. The arc model takes the separate contributions to the heat transfer from each involved mechanism into account, i.e. radiation, convection and energy transported by electrons. The finite volume method and a SIMPLE algorithm are used for solving the governing MHD equations, i.e., conservation equations of mass, momentum, and energy together with the equations describing a k-ε model for turbulence. The model predicts heat transfer for different currents and arc lengths. Finally these calculation results can be used as a useful insight into plasma phenomena of the industrial-scale electric arc furnace. From these results, it can be concluded that higher arc current and longer arc length give high heat transfer.