http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Sevoflurane 및 Propofol이 상처 치유 과정에 미치는 영향: 혈류량과 상처 크기의 비교
최봉수 ( Bong Soo Choi ),이현정 ( Hyeon Jeong Lee ),최현주 ( Hyun Ju Choi ),정규연 ( Kyu Yeon Jung ),김철홍 ( Cheul Hong Kim ),신상욱 ( Sang Wook Shin ) 대한마취과학회 2009 Korean Journal of Anesthesiology Vol.56 No.3
Background: As the wound healing is a multi-factorial process, the anesthetic agent and the duration of its exposure may influence the healing process after surgery. This study investigated the effect of anesthetic agents and duration of its exposure on the wound healing process after operation. Methods: Total 32 rats weighing 200-300 g were randomly allocated to one of eight groups according to the exposure time (1, 2, 4, 8 hours) of sevoflurane or propofol (n=4 each). After wounding under the each anesthetic, anesthesia was maintained for 1, 2, 4 and 8 hours in each group. We compared the skin blood flow around the wound and the wound size at baseline, 3 days, and 7 days postoperatively. Results: In sevoflurane group, short exposure group (1, 2 hours) showed higher wound blood flow than long exposure (4, 8 hours) at 3 days after wounding (P<0.05), but not at 7 days after wounding. For the wound size, there was no difference at 3 days after wounding in sevoflurane group, but 8 hours exposure group had the largest wound at 7 days after wounding. In propofol group, wound blood flow showed no difference at 3 days after wounding, but that of 4, 8 hours exposure group was higher than 2 hours exposure group at 7 days after wounding. There was no difference in wound size in propofol group. Conclusions: This study implicates that sevoflurane might influence the wound healing process more prominently than propofol according to the duration of exposure time. (Korean J Anesthesiol 2009; 56: 313~8)
최봉수(Bong-Soo Choi),유준석(Jun-Seok Ryu) 한국도시행정학회 2001 도시 행정 학보 Vol.14 No.2
The purpose of this study is to analyze the citizen's satisfaction to the city councilors' representational performances in accordance with their representational role focuses. The four representational role focuses, categorized in this survey, are the whole city, the city councilor's electoral ward, the councilor's private group and the political parties and the others. The results of this survey are summarized as follows: The group of citizen who recognized the city councilor's role focus as the electoral ward have the highest proportion of 34.3 percent. When the citizen recognized the councilor's representational focus as the whole city, the citizen's satisfaction reach the highest degree. And the citizen's satisfaction degree is 3.06 point in this survey. There are also great differences in citizen's satisfaction degree according to the type of councilor's responsiveness. The representational activities of service and symbol responsiveness give more satisfaction to the citizen in general.
최봉수(Choi Bong-Soo) 한국도시행정학회 2003 도시 행정 학보 Vol.16 No.2
The purpose of this study is to analyze the citizen's recognition of the city councilors' representational orientation in accordance with their representative activities. The dependent variables, categorized in this survey, are three representational role styles and seven representational role focuses. Eleven representative activities are used as the independent variables. The results of linear multi-regression analysis in this survey are summarized as follows: The significant variables to recognize the three representational role styles- trustee, delegate and combined role are the activities of processing of civil petitions and appeals, helping citizens in the administrational deals, local legislating, consulting and decision-making budget. The significant variables to recognize the seven representational role focuses- whole city, electoral wards, supporting groups, political parties, local administration organization, nation state and neutrality are the activities of decision-making, consulting and decision-making budgets, local legislating and participating in local ceremonies.
최봉수(Bong Su Choi),윤두한(Doohan Yoon),김성수(Sung Soo Kim),홍희기(Hiki Hong) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.6
Several types of solar water heating system were analyzed in characteristics and proper systems were proposed under Korean climates. In particular, the forced circulation type with a spiral-jacketed storage tank has a potential to be used widely in a small and a part of middle systems when the stratification of the storage tank can be enhanced by a precise design.
연구보문 : 식물환경 ; 유채 잔유물의 녹비 이용에 따른 벼 생육특성 및 잡초발생 억제효과
최봉수 ( Bong Su Choi ),성좌경 ( Jwa Kyung Sung ),이상수 ( Sang Soo Lee ),남재작 ( Jae Jak Nam ),홍승길 ( Seung Gil Hong ),김록영 ( Rog Young Kim ),양재의 ( Jae E. Yang ),옥용식 ( Yong Sik Ok ) 한국환경농학회 2010 한국환경농학회지 Vol.29 No.2
수확기 벼의 간장은 모든 처리구에서 비슷하게 생육하였으나 수장은 녹비환원구의 70% 시비구(17.5 cm)에서 관행재배구(16.4 cm)보다 촉진시켰다. 수확기 벼의 지상부 잎과 줄기의 생체중은 유채 잔유물 녹비환원구의 30% 시비구에서 관행재배구와 비슷한 수준이었다. 벼의 건물중에서도 생체중과 비슷하였으며, 녹비환원구의 70% 시비구에서는 이삭중을 19% 증가시켰다. 또한 유채 잔유물의 환원에 따른 벼의 주당 수수와 1수영화수는 관행재배구에 비해 녹비환원구의 70% 시비구에서 비슷하거나 오히려 증가하였다. 한편 벼의 등숙율은 관행재배구의 91%와 비교하여 유채 잔유물 환원구에서 낮아지는 것(79-85%)으로 나타났으나, 정조수량은 유채 잔유물 환원구의 70% 시비구에서 496.4 g/pot으로 가장 높았다. 각 처리구별 벼의 수량으로부터 산출한 수량지수는 녹비환원구의 70% 시비구에서 125.4로 관행재배구보다 수량이 증가하였다. 잡초발생량은 관행재배구에서 37본으로 가장 많았으며, 유채 잔유물 환원구에서는 11.7-15.7본으로 관행재배구보다 현저히 감소시켰다. 잡초의 건물중은 관행재배구의 25.1 g/pot에 비해 유채 잔유물 환원구의 시비량이 많은 처리구부터 각각 11.8, 12.2 및 6.0 g/pot으로 현저히 감소시키는 것으로 나타났다. Rape residue as green manure is an emerging alternative of chemical fertilizer to improve soil quality and crop productivity. Objective of this research was to evaluate the effectiveness of rape residue as green manure on reduction of chemical fertilizer and suppression of weed occurrence in rice-rape double cropping system. Greenhouse experiment was conducted with four treatments: the combination of rape residue and three different N application rates (0, 30 and 70% of recommended application rate (7.8 kg N 10a-1)) and 100% chemical fertilizer as a control. No difference in rice clum length was observed for all treatments, while panicle length was highest in a treatment of rape residue+70% chemical fertilizer (Rape+70%CF). In addition, rice grain weight at a Rape+70%CF treatment increased by 19% compared to the control. This treatment also reduced weed density and biomass by 58 and 53%, respectively, compared to the control. Our results suggest that use of rape residues as green manure is an environment friendly and effective way to reduce chemical fertilizer and to enhance crop productivity in rice-rape double cropping system in Korea.