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Plastic Intake Manifold 개발 과정 상의 NVH 특성 시험 및 평가
이수열(Soo-Yeol Lee),송재은(Jae-Eun Song),서인수(In-Soo Suh) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_2
Recently, intake manifold has been changed from aluminum casting to plastic molding, which is a successful example of weight reduction keeping about the same cost and engine performance for modern passenger car engines.<br/> In view of noise and vibration of an engine, however, the lower stiffness plastic manifold can naturally cause higher vibration and noise level. In this study, the NVH development process for newly designed plastic intake manifold is introduced. The test results are compared with the aluminum manifold in terms of vibration and noise level, and their characteristics. By optimizing the thickness and adding appropriate brackets, we achieved the comparable level of radiated noise level from the engine.<br/>
수기 액상세포검사를 이용한 자궁목 세포진 검사의 임상적 효용성: 고식적 세포진 검사와의 비교
박종명,이종기,서인수,Park, Jong-Myoung,Lee, Jong-Gi,Suh, In-Soo 대한세포병리학회 2005 대한세포병리학회지 Vol.16 No.1
This study was performed to compare manual liquid-based preparation with conventional Papanicolaou tests in view of the cytologic diagnoses and specimen adequacy. The specimens of 5,979 women from 33 local clinics and 1 general hospital were prepared by both manual liquid-based preparation and conventional Papanicolaou test. The cytologic diagnoses and specimen adequacy were evaluated in Department of Fathology in Kyoungpook National University School of Medicine. A conventional Papanicolaou test was always prepared first, after that residual material on the sampling device was rinsed into a liquid preservative, and then thin-layer slides were prepared using manual method of liquid-based cervicovaginal cytology. Conventional and liquid-based slides were read independently, and cytologic diagnoses and specimen adequacy were classified using the Bethesda System. Of the cases, 5,763 (96.3%,) had the same interpretation, and there was no significant diagnostic difference in 5,853 (97.8%) cases. When evaluating cases with more than one diagnostic class difference, the manual liquid-based preparation demonstrated a statistically significant overall improvement (2.1%) in the detection of squamous intraepithelial lesion and invasive cancer. Using manual method of liquid-based preparation, there was 14.1%, reduction in unsatisfactory slides through excellent cellular presentation. In conclusion, the manual liquid-based preparation produces standardized quality, superior sensitivity and improved adequacy as compared to the conventional method.
안병수,김경희,한왕수,서인수,Ahn, Byung-Soo,Kim, Kyung-Hee,Han, Wang-Soo,Suh, Inn-Soo 대한미생물학회 1987 大韓微生物學會誌 Vol.22 No.2
The incidnce of enterotoxigenic Esherichia coli(ETEC) was investigated in E. coli strains isolated from Korean infants less than two years old. Over a period of 12 months, ETEC strains have been isolated from 45(45.0%) of 100 children with acute diarrhea and from 9(20.5%) of 44 children without diarrhea. In the group with diarrhea, 41(41.0%) strains produced heat-stable toxin, 3(3.1%) produced heat-labile toxin, and 1(1.0%) produced both heat-stable and heat-labile toxins. In the control group, 7(15.9%) released heat-stable toxin, 2(4.5%) released heat-labile toxin and none released both. A statistical association of strains releasing heat-stable toxin was significant(P<0.025).
우리나라 소아 설사에 있어서의 Enteroadherent Escherichia coli의 병원적 역학
김정목,김경희,조양자,서인수,Kim, Jung-Mogg,Kim, Kyung-Hee,Cho, Yaug-Ja,Suh, Inn-Soo 대한미생물학회 1987 大韓微生物學會誌 Vol.22 No.2
Adherence to HEp-2 cells has been proposed as a virulence characteristic of enteropathogenic E. coli (EPEC). The role of the HEp-2 adherent E. coli was evaluated in a group of children with endemic diarrhea admitted to Hanyang University Hospital in Seoul, Korea. HEp-2-adherent E. coli was detected in fecal samples of 59 (59%) of 100 cases and ten (22.7%) of 44 concurrent control children (p<0.0005). Adherence was exhibited by 15 serogroups and subgroups, but within these groups more than one adherence pattern was frequently observed. Of 17 strains belonging to traditional infantile EPEC serogroups, 12(70.6%) gave a positive adherence. Of 45 enterotoxin producing strains, 24 (53.3%) gave a positive adherence. HEp-2-adherent strains that did not belong to classic EPEC serogroups and did not produce heat-stable and/or heat-labile enterotoxins(referred as enteroadherent E. coli, EAEC) was found in 29 (29%) of the patients with diarrhea and in six (13.6%) of the well children (p<0.05). From 22 of the 29 cases, no pathogen other than EAEC was isolated. These findings strongly implicate EAEC as the cause of diarrhea in the children. Our study supports the concept that EAEC may be an important cause of endemic diarrhea in Korean children.