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林廷圭,李容재,李恒振,金東秀,宋雄奎,金暎洙,趙奐九 中央醫學社 1963 中央醫學 Vol.4 No.6
The change of serum cholesterol level in fasting rabbits induced by the oral administration of Deer Horn (cervus unicolor) decoction were colorimetrically determined. Increase in seruem cholesterol level resulting from fasting was lowerd by the decoction, although the action was relatively slow. The deer horn decoction was supprsed to prevent the reduced lover function of the rabbits under the fasting state.
스너버 커패시터를 이용한 하프 브리지 회로의 플로팅 게이트 전원 공급
임정규(Jung-Gyu Im),김석환(Seok-Hwan Kim),신휘범(Hwi-Beom Shin),정세교(Se-Kyo Chung),이현우(Hyun-Woo Lee) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
This paper deals with a simple charge pump technique for a floating gate power supply of a half-bridge circuit. The proposed circuit uses a snubber capacitor in the low side switch as a charge pump capacitor, which supplies a charge to the bootstrap capacitor for the high side gate driver. The operation of the proposed circuit is presented and the simulation and experimental results are provided to show the feasibility of the proposed technique.
임정규 大韓藥理學會 1974 대한약리학잡지 Vol.10 No.2
The present clinical trial was performed to evaluate the anthelminthic effect and tolerance of Oxantel pamoate, a new antiwhipworm agent, in the treatment of T. trichiurus infection. Oxantel pamoate oral suspension was administered as a sing1e dose of 10 mg per kg. body weight to a total of 46 T. trichiurus infected cases selected out of 64 positives, by examining 89 fecal specimens collected from the soldiers and in-patients of xx Armed Forces General Hospital. For the evaluation, the negative conversion rate (cure rate) and the egg reduction rate were assessed 22 days after the treatment. The result obtained were as follows: 1. The prevalence rate of T. trichiurus infection in this study was 71.9%, while the mean E.P.G. of 46 treated cases was 126. 2. The egg negative conversion rate was 91.3%, and 98.4% of egg reduction rate was obtained. 3. From the observation of 107 worms expelled during 3 consecutive days after the treatment, it was known that sex ratio of male and female was about 1 : 2 and that average worm burden per capita was 2.3. 4. In all treated cases, the medication was readily accepted and well tolerated. On the hemograms, urinalysis and liver function tests, no significant differences were noted before and after the drug administration. There was also no detectable objective and subjective side effect.
TMS320F2812 DSP와 스마트 파워모듈을 사용한 유도전동기 소형 벡터제어 시스템의 구현
임정규(Jeong-Gyu Lim),김석환(Seok-Hwan Kim),정세교(Se-Kyo Chung) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
This paper presents an implementation of compact vector control system for induction motor using a digital signal processor (DSP) and a smart power module (SPM). The DSP TMS320F2812 has most necessary functions for ac motor control in a single chip and SPM provides a compact power stage. The indirect vector control algorithm is implemented in the drive system using these devices. The developed system is applied by 0.8㎾ induction servo motor and the all functions are verified through the experiments.
위상천이 풀-브릿지 PWM 컨버터의 이산 시간 모델링 및 제어기 설계
임정규(Jeong-Gyu Lim),임수현(Soo-Hyun Lim),정세교(Se-Kyo Chung) 전력전자학회 2007 전력전자학술대회 논문집 Vol.- No.-
A phase shifted full-bridge PWM converter (PSFBC) has been used as the most popular topology for many applications. But, for the reasons of the cost and performance, the control circuits for the PSFBC have generally been implemented using analog circuits. The studies on the digital control of the PSFBC were recently presented. However, they considered only the digital implementation of the analog controller. This paper presents the modeling and design of the digital controller for the PSFBC in the discrete time domain. The discretized PSFBC model is first derived considering the sampling effect. Based on this model, the digital controller is directly designed in discrete time domain. The simulation and experimental results are provided to verify the proposed modeling and controller design.