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최석호,김대연,박귀원,정성은,이성철,김우기,장자준,Choi, Seok-Ho,Kim, Dae-Yeon,Park, Kwi-Won,Jung, Sung-Eun,Lee, Seong-Cheol,Kim, Woo-Ki,Jang, Ja-Jun 대한소아외과학회 1998 소아외과 Vol.4 No.1
Six children with solid and papillary epithelial neoplasm of the pancreas were studied retrospectively. There were 2 boys and 4 girls. The mean age at operation was 11 years(range; 8-13years). Three patients had incidental abdominal mass, in two patients the mass was non-tender, in one patient the mass was tender. The minimum size of tumor was $6.5{\times}6.0$ cm and the maximum was $10.5{\times}8.0$ cm. Five tumors were located in the head of the pancreas, and the other one in the tail. Local invasion or metastasis was not noticed. Tumors were removed completely by performing the following operations: 3 pylorous preserving pancreaticoduodenectomy, 2 Whipple's operation and 1 distal pancreatectomy. There was no mortality. The histologic findings were characteristic. There were no recurrences during a follow-up of 0.5 to 12 years (mean; 5.0 years).
최석호,윤영호,김현욱 ( Suck Ho Choi,Young Ho Yoon,Hyun Uk Kim ) 한국축산학회 1981 한국축산학회지 Vol.23 No.3
Casein degradation product and soyprotein degradation product have been developed to replace commercial peptones imported for bacterial growth and fermentation works in this country. The products were tested for supporting bacterial growth and the results are summarized as follows: 1. The extraction and precipitation of soyprotein have been studied for the improvements of the nitrogen source medium, 79.9 % to 97.0 % of protein was extracted between pH 7 and pH 11.6. 2. Casein was hydrolyzed optimally at 37℃, at pH 8.6, in 24 hr. and at 0.1 g of pancreatin per gram of casein. 3. The composition of the soyprotein degradation product was as follows: total nitrogen 13.3 %, mositure 6.7 %, ash 3.3 %, total amino group (arginine equivalents) 43.4 %, and carbohydrate 150 (㎍/g). 4. The composition of the casein degradation product was as follows: Total nitrogen 11.9 %, moisture 7.1 %, ash 6.0 %, .total amino group (arginine equivalent) 37.0 %, and carbohydrate 74 (㎍/g). 5. The casein degradation product and sorprotein degradation product, did not support better growth of lactic acid bacteria and Bacillus subtilis in peptone broth media than commercially available peptone or Bacto-tryptone. 6. Addition of yeast extract, pancreatin, DNA or RNA hydrolysates to casein or soy protein degradation product-containing media improved the growth of Streptococcus lactis. However Vitamin B complex did not influence the growth of Streptococcus lactis. When pancreatin extract was added to casein degradation product, the growth of E. coli and B, subtilis was also enhanced. 7. The results indicate the growth factors lacking in our protein degradation product-containing media are mainly nucleotides.
Sweet BV의 성분분석과 항체역가 및 allergy 반응에 대한 임상적 연구
최석호,차배천,권기록,Choi, Suk-Ho,Cha, Bae-Chun,Kwon, Ki-Rok 대한약침학회 2006 Journal of pharmacopuncture Vol.9 No.2
Objectives : The aim of this study was to observe prevention of allergic reactions of Sweet Bee Venom (removing enzyme components from Bee Venom). Methods: Content analysis of Sweet Bee Venom and Bee Venom was rendered using HPLC method and characterization of Anti-Sweet Bee Venom in Rabbit Serum. Clinical observation was conducted for inducement of allergic responses to Sweet BV. Results : 1. Analyzing melittin content using HPLC, Sweet BV contained 34.9% more melittin than Bee venom pharmacopuncture at same concentration. 2. Observing chromatogram of HPLC, removal of the enzyme was successfully rendered on Sweet BV. 3. The anti-serum of Sweet BV showed high titers against melittin and bee venom and relatively low titer against phospholipase A2. 4. After conducting approximately 3,000 cases of Sweet BV administration, not a single case of generalized anaphylatic reaction occurred in clinical observation. 5. Mild compared to the bee venom pharmacopuncture, Sweet BV showed some acute hypersensitive reactions of edema, itchiness, and aching locally. 6. Sweet BV was administered on six patients with previous history of suffering from generalized acute hypersensitive reactions with the bee venom. None of the patients showed allergic reactions with Sweet BV, suggesting it can effectively prevent anaphylatic shock which may occur after the bee venom pharmacopuncture procedure. Conclusion : Summarizing above results, Sweet Bee Venom appears to be an effective measurement against allergic reactions from the bee venom pharmacopuncture especially against anaphylatic shock.
최석호(Seokho Choi),이경우(Kyeongwoo Lee),천무환(Muhwan Chon),백민수(Minsu Paek) 한국유체기계학회 2004 유체기계 연구개발 발표회 논문집 Vol.- No.-
A vacuum system with ejector has been widely used because of its simple construction and easy maintenance. Ejectors are the main part of the vacuum system, of which designs determine the efficiency of vacuum system. The ejector with the capacity of l.5ton/hr steam consumption was designed and tested. The results showed that the tested values are satisfied with the designed specifications. Comparing with other ejectors designed by overseas specialist makers, it seems to have a good performance.
최석호(Seok Ho Choi),김곤호(Gon-Ho Kim),안강호(Kang-Ho Ahn) 한국진공학회(ASCT) 1998 Applied Science and Convergence Technology Vol.7 No.3
공정 플라즈마내에서 입자의 거동은 하전되는 입자의 극성과 하전량에 따르게 된다. 따라서 본 연구에서는 플라즈마내에서 입자의 거동을 이해하기 위한 기초 작업으로 입자의 하전 특성을 측정하였다. 본 연구에 사용된 단분산 입자는 직경 0.05 ㎛, 0.07 ㎛, 0.1 ㎛, 0.2 ㎛으로 이들 입자를 DC-공기 플라즈마내에 주입하여 이들의 하전량과 하전 극성 변화를 Faraday Cup을 이용하여 측정하였다. 본 실험에서 입자의 하전량과 하전 극성은 주입 입자의 크기와 농도 및 플라즈마 발생조건 즉, 반응 압력, 전압 등에 영향을 받음을 알 수 있었으며 입자 당 10³~10^5 의 평균 하전 수를 갖음이 관찰되었다. Since the particles are highly charged in process plasmas, the dynamics of the particles are concerned principally with the effect of the charging amount and polarity. In order to investigate the charging effect of the particles in the plasmas, the known sizes of the mono-dispersed particles with 0.05 ㎛, 0.07 ㎛, 0.1 ㎛ and 0.2 ㎛ diameter are introduced into the DC air-plasmas. The characteristics of the charged particles are measured with a Faraday cup. Results show that the particle charging polarity depends on the concentrations and sizes of the particles and the condition of plasma generation, operating pressure, and power. It is also found that the number of charges per a particle is in the ranges of 10³~10^5.