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조보선(Bo Sun Cho),노영수(Young Soo Rho),홍남두(Nam Doo Hong),김신규(Shin Kyu Kim) 한국생약학회 1988 생약학회지 Vol.19 No.2
Melanterite(Green vitriol) is a kind of mineral crude drug which has been used for a hemostatic and hematic, and it contained iron, zinc, magnesium, copper, calcium and manganese etc., and the contents of those metals were 14.34%, 1.21%, 0.91% 0.41%, 0.37% and 0.15%, respectively. In the acute toxicity in mice its LD<sub>50</sub> was over 3,000 ㎎/㎏ and 2,000 ㎎/㎏ by the oral and subcutaneous administration, respectively, but the LD<sub>50</sub> by the intraperitoneal administration was 1,810 ㎎/㎏. On the experimental anemia induced by the free bleeding in rabbits and by the phenylhydrazine in rats the reduced RBC, hemoglobin and hematocrit were rapidly recovered.
소형 정찰 UAV를 위한 고분자 전해질막 연료전지의 경량의 금속 분리판
김기인(Ki-In Kim),이종광(Jong-Kwang Lee),장보선(Bo-Sun Jang),권세진(Se-Jin Kwon) 한국항공우주학회 2010 韓國航空宇宙學會誌 Vol.38 No.10
이 논문에서는 소형 정찰 UAV의 동력원으로 연료전지 시스템을 적용하기 위해, 기존의 흑연 분리판을 대체할 수 있는 가벼운 알루미늄 분리판을 제시하였다. 분리판은 연료 전지 시스템 전체 무게의 80% 이상을 점유하므로, 경량의 알루미늄 분리판은 연료천지 UAV의 유효 탑재량과 항속 시간을 증가시킬 수 있다. 일반적으로 사용되고 있는 흑연 재질의 분리판과 성능을 비교 및 평가하기 위해 알루미늄과 흑연 분리판을 제작하였으며, 알루미늄 분리판의 성능이 흑연 분리판에 비해 약 15% 이상 증가하였음을 확인하였다. 또한, 실제 소형 정찰 UAV 에 적용하기 위한 기초 연구로써 알루미늄 분리판을 이용한 단천지의 성능을 다양한 운전조건에서 측정하였다. This paper proposed lightweight alumllum bipolar plates as an alternative for conventional graphite bipolar plates in fuel cell systems used as a power source for small reconnaissance UAVs. Since bipolar plates occupy more than 80% of the total weight of the fuel cell system, lightweight alumllum bipolar plates can improve the overall payload and flight time of the fuel cell UAV. The aluminum and graphite bipolar plates were fabricated to compare the performance of each of them. A 15% higher performance per weight was obtained from aluminum bipolar plates than the graphite bipolar plates. Also, the performance of a single cell using aluminum bipolar plates was evaluated under various operating conditions.
비정상 충류화염편 모델을 이용한 비예혼합 난류화염 해석
김성구(Seong Ku Kim),강성모(Sung Mo Kang),서보선(Bo Sun Seo),김용모(Yong Mo KIm) 한국분무공학회 2001 한국액체미립화학회지 Vol.6 No.3
The present study is focused on modeling the transient behavior of the local flame structure which is especially important for slow reaction processes, such as NOx formation in the radiating flame field. The unsteady flamelet model recently developed has been applied to analyze a steady, turbulent jet flame. Numerical results are compared with experimental data and numerical results of the conventional steady flamelet model. The numerical result reveals that the unsteady flamelet model correctly predicts the nonequilibrium effect upsteam and the subsequent decay of the superequilibrium radical concentrations further downstream.
경피용 BCG 백신의 PPD 1TU, 2TU 및 5TU 결핵 피부반응 검사에 대한 영향
김보선,황민호,김창휘,박재옥,신상만,Kim, Bo Sun,Hwang, Min Ho,Kim, Chang Hwi,Park, Jae Ok,Shin, Sang Man 대한소아감염학회 2001 Pediatric Infection and Vaccine Vol.8 No.2
목 적 : 최근 국내에서 1998년부터 5TU 대신 2TU를 사용함으로써 결과 판정에 어려움이 있다. 5TU와 2TU에 대한 투베르쿨린 반응 정도는 차이가 있게 마련이나 아직까지 적절한 국내 기준이 마련되어 있지 않은 실정이기에 생후 4주 이내에 경피 다자법으로 BCG를 접종 받은 영아에서의 PPD 1TU, 2TU 및 5TU에 대한 반응을 관찰하고자 하였다. 방 법 : 2000년 1월부터 2000년 8월까지 8개월간 순천향대학병원 육아지도회에서 결핵의 가족력, 피부 질환, 영양 장애 및 면역 기능 저하 소견이 없는 건강한 신생아 중 생후 4주 이내에 경피 다자법(Tokyo strain, Japan BCG Laboratory Co.)으로 BCG를 접종한 92명(남아 : 56명, 여아 : 36명)에게 생후 4개월에 PPD 1TU, 2TU 및 5TU로 결핵 피부반응 검사를 시행한 후 그 반응을 관찰하였다. 통계처리는 통계 프로그램인 SPSS 10.0을 이용하여 ANOVA, Chi-square test을 적용하여 P<0.05인 경우 통계적으로 유의하다고 판단하였다. 결 과 : 1) 전체 92명 중 31명에서 1TU, 31명에서 2TU 그리고 30명에서는 5TU를 사용하여 결핵 피부반응 검사를 시행하였다. 1TU로 검사시 경결의 크기가 0 mm인 경우가 가장 많았고 그 다음으로 7 mm, 6 mm 순으로 많았다. 2TU로 검사시 경우 8 mm가 가장 많았으며 그 다음은 3 mm, 6 mm, 10 mm가 많았다. 5TU로 검사시 13 mm와 6 mm가 가장 많았다. 2) 경결의 평균 크기는 PPD 1TU, 2TU 및 5TU로 검사하였을 때 각각 $5.7{\pm}4.2mm$, $7.1{\pm}3.7mm$, $9.2{\pm}4.2mm$로 1TU와 2TU는 통계학적으로 차이가 없었으나 5TU의 경우 PPD 1, 2TU에 비해 평균 경결 크기가 의미 있게 컸다(P<0.05). 3) 경결의 크기가 10 mm 이상인 경우는 1TU에서는 31명 중 6명(19.4%), 2TU에서는 31명 중 9명(29%), 5TU에서는 30명 중 16명(53.3%)이었으며 1TU와 2TU는 통계학적으로 차이가 없었으나 5TU의 경우 PPD 1, 2TU에 비해 의미 있게 많았다(P<0.05). 경결의 크기가 5 mm 이상인 경우는 통계학적 유의성은 없었지만 5TU로 검사시 가장 많았다. BCG 반흔 수는 1TU의 경우 $13.81{\pm}4.48$개, 2TU는 $13.06{\pm}4.18$개, 5TU는 $13.07{\pm}3.07$개로 차이가 없었다. 결 론 : 현재 국내에서 사용되고 있는 2TU을 사용한 결핵 피부반응 검사에 대한 새로운 평가 기준이 필요하고 결핵의 진단기준에 대한 더 많은 연구가 필요하다고 사료된다. Purpose : Recently in Korea since 1998, 2TU has been used instead of 5TU, which caused a confusion in interpreting tuberculin skin tests. We compared the tuberculin skin reaction to PPD(purified protein derivatives) 1TU, 2TU and 5TU. Methods : We studied tuberculin skin reaction to PPD 1TU, 2TU and 5TU on 92 infants who were vaccinated with percutaneous multiple puncture BCG vaccine(Tokyo 172 strain, Japan BCG Laboratory Co.) in neonatal period. Diameters of indurations were measured in millimeters 48~72 hours after the intradermal injection of PPD 1TU, 2TU and 5TU. Results : Among 92 infants(male : 56, female : 36), 1TU was used on 31 infants, 2TU on 31 infants and 5TU on 30 infants for tuberculin skin test. The mean diameter of induration for PPD 1TU, 2TU and 5TU were $5.7{\pm}4.2mm$, $7.1{\pm}3.7mm$, and $9.2{\pm}4.2mm$, respectively. There was no statistical difference in mean diameter of induration between 1TU and 2TU. However, when tested with 5TU, the diameter of induration was significantly larger than those of PPD 1TU and 2TU(P<0.05). Six subjects(19.4%) tested with 1TU, 9 subjects(29%) tested with 2TU and 16 subjects(53.3%) tested with 5TU had diameter of 10 mm or more. There was no statistical difference between 1TU and 2TU but for 5TU, number of subjects with diameter of 10 mm or more was significantly higher than PPD 1TU and 2TU(P<0.05). Number of subjects with induration diameter of 5 mm or more for 1TU, 2TU and 5TU was 19(61.3%), 22(71.0%) and 26(86.7%), respectively. However, there was no statistical difference. Conclusion : A new standard criteria for interpreting the tuberculin skin test with PPD 2TU should be established for clinical diagnosis of tuberculosis.
경거골유합술 후 발생하는 불유합과 관련된 인자에 대한 분석
이준영,김보선,이정우,Lee, Jun Young,Kim, Bo Sun,Lee, Jung Woo 대한족부족관절학회 2017 대한족부족관절학회지 Vol.21 No.3
Purpose: The aim of this study was to analyze the factors related to nonunion in tibiotalar arthrodesis. Materials and Methods: Eighty cases of ankle arthritis treated with tibiotalar arthrodesis in our hospital from November 2008 to November 2015 with more than one year follow up were analyzed. Simple anteroposterior and lateral radiographs after 6 and 12 months of surgery were analyzed. Union was defined as more than 50% connection of the trabecular bone at the ankle joint surface in the anteroposterior and lateral radiographs. The nonunion group was defined as no signs of union with persistent pain 9 months after surgery. The surgical approach, type of used screw, preoperative and postoperative ankle alignment, body mass index (BMI), bone mineral density, and patients' prior history were compared between the two groups. Results: There were 69 union cases and 11 nonunion cases. In the patient factors, the gender and BMI was related to nonunion (p<0.05). The mean preoperative and postoperative ankle alignment in the nonunion group was $9.93^{\circ}{\pm}6.92^{\circ}$ and $5.43^{\circ}{\pm}3.35^{\circ}$ respectively, and $9.80^{\circ}{\pm}7.55^{\circ}$ and $5.63^{\circ}{\pm}3.45^{\circ}$ in the union group, respectively; the difference was not statistically significant (p>0.05). In the technical factors, the transfibular approach showed a better relationship but the association was not significant (p<0.05). In 40 cases of the transfibular approach, 12 cases used cancellous screws, and 4 cases showed nonunion due to screw breakage. Conclusion: Technical factors, such as the surgical approach and the type of screw used can be a risk factor in nonunion. In addition, patients' factors, such as gender and BMI, must be considered to reduce the nonunion rate.
꿀벌 반야외시험법을 활용한 carbaryl 수화제 독성평가
전경미(Kyongmi Chon),김보선(Bo-sun Kim),이환(Hwan Lee),박경훈(Kyung-Hun Park),백민경(Min Kyoung Paik),최용수(Yong-Soo Choi),문병철(Byeong-Cheol Moon) 한국농약과학회 2018 농약과학회지 Vol.22 No.2
Honeybee semi-field tests were carried out to assess the effect of carbaryl wettable powder (WP) 50% from April to May, 2017. The experiment included three treatment groups (control, toxic reference (diflubenzuron WP), and carbaryl WP), each with three replicate tunnels. Mortality, flight activity, brood development, and condition of colonies were assessed during the testing period (28 days). Sever adverse effects of carbaryl WP were detected in the terms of the mortality and flight activity from the days of application to three following days but were observed lasting no more than 4 days. Brood termination rates (BTR) for marked eggs were 29.3%, 77.3%, and 68.8% in the control, toxic reference and carbaryl WP groups, respectively. Even though clear adverse effects on the brood development were observed, no adverse effects on the overall survival of the colonies could be observed in the carbaryl WP treatment.