http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
프레스 금형의 특징형상 인식에 의한 가공데이타 자동변환
최홍태,반갑수,이석희 한국경영과학회 1994 한국경영과학회 학술대회논문집 Vol.- No.1
This paper presents an automatic conversion of machining data from the orthographic views of press mold by feature recognition rule. The system includes following 6 modules : separation of views, function support, dimension text check and feature processing modules. The characteristic of this system is that with minimum user intervention, it recognizes basic features such as holes, slots, pockets and clamping parts and thus automatically converts CAD drawing details of press mold into machining data using 2D CAD system instead of using an expensive 3D Modeler. The system is developed by using IBM-PC in the environment of AutoCAD R12, AutoLISP and MetaWare High C. Performance of the system is verified as a good interfacing of CAD and CAM when applied to a lot of sample drawing.
안대명,이창한,최윤찬,조석호,안갑환,김성수 대한상하수도학회 2002 상하수도학회지 Vol.16 No.4
The paper introduces a domestic pump designed for dissolved air flotation (DAF). In the paper, the difference in performance between the domestic DAF pump and conventional pressure saturator is explained using the characteristics of air bubble released. The size distribution of air bubbles released from DAF pump is measured by image analyzer and particle size analyzer. And the mean diameter of bubbles is 43μm. The results are similar to that of pressure saturator. The air volume concentration in the water of domestic DAF pump and pressure saturator are 40 and 70% of theoretical amounts. In DAF system used domestic DAF pump, the removal efficiency of turbidity is 70%.
Foreign gene induction into Bombyx mori egg by electroporation
Min-Uk Kang,Si-Kab Nho,Seok-Woo Kang,Kwang-Ho Choi,Tae-Won Goo 한국응용곤충학회 2008 한국응용곤충학회 학술대회논문집 Vol.2008 No.10
Electroporation is well known today as a powerful transfection technique and is useful for the study of gene expression. The advantage of the electroporation method is that large quantity of silkworm (Bombyx mori) eggs can be transformed in a very short time. However, how to use it for introducing foreign gene into silkworm eggs needs systematical investigation. In our silkworm transgenesis program, we needed an efficient technique to evaluate the functionality of transgenes before their injection into eggs. The goal of this experiment was to find an alternative efficient method of generating transgenic silkworm eggs using a commercially available electroporation device. The Gene Pulser Xcell (Bio-Rad Laboratories, USA) were used. In contrast to other electroporation devices, which are based on a single pulse with exponential decay or square wave technology. We investigated pigmentation-rate and hatching-rate of the silkworm eggs of electroporation. We used foreign gene LacZ, EGFP, Ds-red induced vector system with selection marker for transgenic silkworm. The LacZ gene in 3rd instar larva DNA can be detected by β-galactosidase stain. During these technical studies we found that optimizing parameters such as electrical voltage, number of pulses and their frequency, and conductivity of the buffer was important. These results confirmed that electroporation is available technique for transfecting B. mori egg.
최영석,이용갑,주종일 호서대학교 반도체제조장비국산화연구센터 2001 반도체장비학술심포지움 Vol.2001 No.-
본 논문에서는 전산유체해석 기법을 이용하여 저소음 · 고효율 공조기의 입구형상에 대한 유동해석을 하였다.공조기 입구형상을 결정하는 여러 설계변수가 입구와 출구의 유동조건과 유로의 압력손실에 미치는 영향을 평가하였다.이를 바탕으로 입구와 출구유동의 균일성과 압력손실의 최소화를 만족하는 최적의 설계변수를 결정하여 공조기의 최적설계를 달성하였다.
이중여자 권선형 유도 발전기에 의한 푸역발전시스템의 동특성 해석
장석명(Seok-Myeong Jang),최장영(Jang-Young Choi),조한욱(Han-Wook Cho),박지훈(Ji-Hoon Park),윤기갑(Ki-Kab Yoon) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
Using the MATLAB/SIMULINK, this paper presents dynamic simulation model for 6㎿ wind power generation systems with the DFIG considering distribution systems and performs the dynamic analysis of wind power systems
공간고조파법을 이용한 풍력용 영구자석형 발전기의 전자기적 특성해석 및 제어정수 도출
장석명(Seok-Myeong Jang),최장영(Jang-Young Choi),조한욱(Han-Wook Cho),유대준(Dae-Joon You),경남호(Nam-Ho Kyung),윤기갑(Ki-Kab Yoon) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
Using the MATLAB/SIMULINK, this paper presents dynamic simulation model for 6㎿ wind power generation systems with the DFIG considering distribution systems and performs the dynamic analysis of wind power systems.