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Lee,Sang-Rae 大韓口腔顎顔面 放射線學會 1996 Imaging Science in Dentistry Vol.26 No.1
The system of Oral Maxillofacial Radiology education, radiographic equipments and oral health care were evaluated in Korea. The objectives, the length, curriculum guidelines, instructional method and teaching means for undergraduate, and postgraduate education in 9 dental colleges were described. To investigate the radiographic equipments, surveys were received from 6 Dental College Hospitals(DCH), 23 Dental Hospitals(DH) and 373 Dental Clinics(DC). And the results of oral health care were obtained from the surveys of Kyunghee Dental College Hospital(KDCH), 14 Dental Hospitals and 52 Dental Clinics.
Lee, Seung-Min,Kang, Jong-Ho,Kwak, Sang-Yup,Kim, Rae-Eun,Jung, Hyun-Kyo The Korean Institute of Electrical Engineers 2011 Journal of Electrical Engineering & Technology Vol.6 No.5
In the present paper, a new type of electrical actuator, an electromagnetic force driving actuator (EMFA), applicable to air circuit breaker is developed and analyzed. Transient analysis is performed to obtain the dynamic characteristics of EMFA. The distribution of static magnetic flux is obtained using the finite element method. The coupled problems of electrics and mechanics governing equations are solved using the time-difference method. According to the interception rate of each contactor, investigation of the contactor spring load condition is conducted and applied to the threelink system. Comparisons of the dynamic characteristics of the three-link simulation and experimental data are performed.
Silkworm Thioredoxin Peroxidase Is Induced by External Temperature Stimulus and Viral Infection
Lee Kwang-Sik,Kim Seong-Ryul,Park Nam-Sook,Kim Ik-Soo,Kang Pil-Dong,Sohn Bong-Hee,Choi Kwang-Ho,Kang Seok-Woo,Je Yeon-Ho,Lee Sang-Mong,Sohn Hung-Dae,Jin Byung-Rae 한국응용곤충학회 2004 한국응용곤충학회 학술대회논문집 Vol.2004 No.1
Post-Thaw Cryosurvival of Bovine Embryos Produced In Vitro andIn Vivo after Controlled Freezing
Sang-Rae Cho,Sun-Ho Choi,ChangYong Choe,PoongYeon Lee,Jun-Kyu Son,Jae-Bum Kim,Sung-Jae Kim,Hyun-Jong Kim,Seung-Oh Shin,Dong-Soo Son 사단법인 한국동물생명공학회 2009 한국동물생명공학회지 Vol.24 No.4
To enhance the embryo preservation technology and better application of embryo transfer technique to the field (dairy science or animal reproduction. etc.), we examined the viabilities of bovine embryos produced in vitro and in vivo after cryopreservation according to their developmental stage and thawing temperature. Bovine embryos from in vivo/vitro fertilization (Hanwoo) were examined at day 7, 8, and 9. Survival rates and total cell numbers of in vivo fertilized embryos were as follows: morulae 68.8% and 67±6.0; blastocysts 80.5% and 120±10; expanded blastocysts 77.4% and 138±9.7, respectively. Rates of embryo development for blastocysts and expanded blastocysts after thawing were significantly higher than that of morula stage embryos (p<0.05). While survival rates of in vitro fertilized embryos according to developmental stage showed no significant difference among groups (morula 67.9%; blastocyst 74.3%; and expanded blastocyst 79.4%), total cell numbers were significantly lower than those of other groups (morula 64±5.9; blastocyst 116±8.7; and expanded blastocyst 135±9.1) For the viability according to thawing temperature, survival rate was higher in 37℃.
Bovine leukosis in a slaughtered cow
Lee, Sang-Myung,Choi, Hae-Yeun,Kwak, Hak-Koo,Jung, Chan-Woo,Han, Seong-Tae,Park, Sun-Jun,Yoon, Ho-Gyu,Jang, Rae-Hun The Korean Society of Veterinary Service 2007 韓國家畜衛生學會誌 Vol.30 No.4
A slaughtered 3 years old cow was diagnosed as bovine leukosis by postmortem inspection, agar gel immunodifusion (AGID) test, and polymerase chain reaction (PCR). It showed no special clinical signs except emaciation. Grossly, we observed enlargement of mediastinal and pelvic lymph nodes, and tubercle -like mass on pleura and lung surface, and masses on right atrium and ventricle.