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      • SCIESCOPUSKCI등재

        Case Reports : Basal Cell Carcinoma on the Pubic Area: Report of a Case and Review of 19 Korean Cases of BCC from Non-sun-exposed Areas

        ( Jin Park ),( Yong Sun Cho ),( Ki Hun Song ),( Jong Sun Lee ),( Seok Kweon Yun ),( Han Uk Kim ) 대한피부과학회 2011 Annals of Dermatology Vol.23 No.3

        Basal cell carcinoma (BCC) is one of the most commonly diagnosed malignant skin tumors and develops characteristically on sun-exposed areas, such as the head and neck. Ultraviolet light exposure is an important etiologic factor in BCCs, and BCCs arising from non-sun- exposed areas are, therefore, very rare. In particular, the axilla, nipple, the genital and perianal areas are not likely to be exposed to ultraviolet light; thus, if BCC develops in these areas, other predisposing factors should be considered. Herein, we report a case of BCC arising on the pubic area in a 70-year-old man. We also performed a survey of the literature and discussed the 19 cases of BCC from non-sun-exposed areas reported to date in Korea.

      • KCI등재

        태양돛 기술 동향

        조형순(Hyeong-Sun Cho),김학인(Hak-In Kim),이수용(Soo-Yong Lee),노진호(Jin-Ho Roh) 한국항공우주학회 2014 韓國航空宇宙學會誌 Vol.42 No.6

        태양돛은 태양 광자들의 운동량 변화를 이용하여 추력을 얻는 우주선이다. 매우 작지만 연속적인 가속도를 얻을 수 있어 태양돛은 다양한 임무를 수행할 수 있다. 효과적인 임무 개발을 위해서는 태양돛의 형상, 돛의 재료 그리고 전개 장치에 따른 구조/재료적 특성뿐만 아니라 위성의 임무 궤적에 따른 자세제어 방법들을 고려해야 한다. 본 논문에서는 태양돛의 기술발전, 태양돛 제작에 필요한 소요기술 그리고 태양돛을 이용한 향후 개발 가능한 위성 임무에 대하여 살펴보고자 한다. Solar sail spacecrafts can gain propulsion using the momentum change through reflecting the photon packets of energy from the Sun. The sail slowly but continuously accelerates to accomplish a wide-range of potential missions. To develop the potential mission of the solar sail, the configuration, the film characteristics and the deployment devices should be carefully considered. In this paper, recent development and activities of the solar sail are introduced and design technology of the sail subsystem is investigated.

      • 위암환자의 복강내에 투여한 Mitomycin C-Carbon Particle의 Mitomycin 용출에 관한 연구

        노승무,조영훈,정경수,오정연,김진향,양준묵,강대영,송규상,조준식,최선웅,이진호,민병무,김용백,김창식,박근성,인현빈,정현용,김학용 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

        Locoregional recurrence is the most common type of recurrence in surgical operation of gastric adenocarcinoma, and peritoneal dissemination is one of the most difficult problems in advanced gastric adenocarcinoma treatment. Because the peritoneal cavity is the most common site of the first recurrence after gastric cancer resection, intraperitoneal chemotherpy seems a logical choice for cancer chemotherapy. The Mitomycin C(MMC) adsorbed by the activated charcoal particles(CH) is relatively released when the drug concentration surrounding the carbon particles becomes low in the peritoneum of the peritoneal cavity. For the intraperitoneal chemotherapy on the advanced gastric adenocarcnoma, mitomycin C adsorbed on activated carbon particles was administered in the peritoneal cavity just before abdominal wall closure. The closed drainage tubes were inserted in the peritoneal cavity and clamped for tuo hours after completion of operation. MMC concentrations were serially measured in peritoneal fluid, plasma and urine at 2hour, 48 hour, 72 hour and 168 hour following its administration in order to study the efficacy of the MMC-CH as a drug delivery system. There were minimal toxicities in born marrow, liver, and gastrointestinal system after intraperitoneal MMC-CH administration. The data of this study suggested that MMC-CH may have a somewhat more beneficial effect than surgery alone when administered in optimal dose and schedules, but the MMC concentration of the peritoneal fluid was not sufficient to eradicate remnant cancer cells, and effective duration of maintenance was only below 24 hours in the peritoneal fluid and plasma.

      • SCIESCOPUSKCI등재

        Modeling of CO₂ Emission from Soil in Greenhouse

        Dong Hoon Lee,Kyou Seung Lee,Chang Hyun Choi,Yong Jin Cho,Jong-Myoung Choi,Sun-Ok Chung 한국원예학회 2012 원예과학기술지 Vol.30 No.3

        Greenhouse industry has been growing in many countries due to both the advantage of stable year-round crop production and increased demand for fresh vegetables. In greenhouse cultivation, CO₂ concentration plays an essential role in the photosynthesis process of crops. Continuous and accurate monitoring of CO₂ level in the greenhouse would improve profitability and reduce environmental impact, through optimum control of greenhouse CO₂ enrichment and efficient crop production, as compared with the conventional management practices without monitoring and control of CO₂ level. In this study, a mathematical model was developed to estimate the CO₂ emission from soil as affected by environmental factors in greenhouses. Among various model types evaluated, a linear regression model provided the best coefficient of determination. Selected predictor variables were solar radiation and relative humidity and exponential transformation of both. As a response variable in the model, the difference between CO₂ concentrations at the soil surface and 5-㎝ depth showed are latively strong relationship with the predictor variables. Segmented regression analysis showed that better models were obtained when the entire daily dataset was divided into segments of shorter time ranges, and best models were obtained for segmented data where more variability in solar radiation and humidity were present (i.e., after sun-rise, before sun-set) than other segments. To consider time delay in the response of CO₂ concentration, concept of time lag was implemented in the regression analysis. As a result, there was an improvement in the performance of the models as the coefficients of determination were 0.93 and 0.87 with segmented time frames for sun-rise and sun-set periods, respectively. Validation tests of the models to predict CO₂ emission from soil showed that the developed empirical model would be applicable to real-time monitoring and diagnosis of significant factors for CO₂ enrichment in a soil-based greenhouse.

      • SCIESCOPUSKCI등재

        Modeling of CO<sub>2</sub> Emission from Soil in Greenhouse

        Lee, Dong-Hoon,Lee, Kyou-Seung,Choi, Chang-Hyun,Cho, Yong-Jin,Choi, Jong-Myoung,Chung, Sun-Ok Korean Society of Horticultural Science 2012 원예과학기술지 Vol.30 No.3

        Greenhouse industry has been growing in many countries due to both the advantage of stable year-round crop production and increased demand for fresh vegetables. In greenhouse cultivation, $CO_2$ concentration plays an essential role in the photosynthesis process of crops. Continuous and accurate monitoring of $CO_2$ level in the greenhouse would improve profitability and reduce environmental impact, through optimum control of greenhouse $CO_2$ enrichment and efficient crop production, as compared with the conventional management practices without monitoring and control of $CO_2$ level. In this study, a mathematical model was developed to estimate the $CO_2$ emission from soil as affected by environmental factors in greenhouses. Among various model types evaluated, a linear regression model provided the best coefficient of determination. Selected predictor variables were solar radiation and relative humidity and exponential transformation of both. As a response variable in the model, the difference between $CO_2$ concentrations at the soil surface and 5-cm depth showed are latively strong relationship with the predictor variables. Segmented regression analysis showed that better models were obtained when the entire daily dataset was divided into segments of shorter time ranges, and best models were obtained for segmented data where more variability in solar radiation and humidity were present (i.e., after sun-rise, before sun-set) than other segments. To consider time delay in the response of $CO_2$ concentration, concept of time lag was implemented in the regression analysis. As a result, there was an improvement in the performance of the models as the coefficients of determination were 0.93 and 0.87 with segmented time frames for sun-rise and sun-set periods, respectively. Validation tests of the models to predict $CO_2$ emission from soil showed that the developed empirical model would be applicable to real-time monitoring and diagnosis of significant factors for $CO_2$ enrichment in a soil-based greenhouse.

      • 인트라넷 기반 복합운송 정보시스템 개발

        조용준,박윤선 명지대학교 산업기술연구소 2001 産業技術硏究所論文集 Vol.20 No.-

        Until now, in overseas trading, shipper, export[import] agents and airways have communicated with each other by exchanging documents through off-line or by fax or e-mail. But it causes repetition of paper-work, delay and complexity. In this study, we solved these problems using Internet technique. We also offer environments that can strengthen the competitiveness. It is called Cargonet System. It constructs not only the necessary information system but also the corresponding network among agents, forwaders, airways, Client users use only Web-Brwoser. Therefore, it enables to update rapidly for system extension.

      • 體重 및 無脂肪體重과 背筋力과의 相關에 관한 硏究

        曺容善,黃甫淵 漢陽大學校 體育科學硏究所 1986 體育科學 Vol.6 No.6

        The Purpose of this study was to investigate the influence of percent of Body Fat on Back Muscle Strength 150 Subjects(50=Physical Education department Students, (=P.E.D.S.), 50=General Students(=G.S), 50=Excellent Players (=E.P)) were Selected to measure the percent of Body fat at the Subscapular and Thigh with a skinfolder. Percent of Body fat was then Calculated with Sloan & Wire's formula and Brozek, et als formula. The Back Muscle Strength was Calculated through investigating the difference between the percent of Body fat and Static Back muscle Strength among the 3 groups. The results of this study are as follows: 1) The difference of Mean of Percent of Body fat, (1) There are significant differences among the 3 groups. (P<0.05, G.S., E.P., P.E.D.S.) (2) There is a Significant difference between G.S. and P.E.D.S. (P<0.01, G.S., P.E.D.S.) (3) There is no Significant difference between the P.E.D.S. and E.P. (P>0.05) (4) There is a Significant difference between the G.S. and E.P. (P <0.05, G.S., E.P.) :2) The difference of Means of Back Muscle Strength, (1) There are significant differences among the 3 groups (P<0.01, E.P., P.E.D.S., G.S.) (2) There is a significant difference between the G.S. and P.E.D.S. (P<0.01, P.E.D.S., G.S.) (3) There is a significant difference between the P. E. D. S. and E.P. (P<0.01, P.E.D.S., E.P.) (4) There is a high significant difference between the G.S. and E.P. (P<0.01, G.S., E.P.) 3) The correlation between the Back Muscle Strength and Weight, (1) There is no correlation in the G.S. (r=0.10) (2) There is a little correlation in the P.E.D.S. (r=0.23) (3) There is a high significant correlation in the E.P. (r=0.91) 4) The correlation between the Back Muscle Strength and Lean Body Weight (1) There is a small Negative Correlation in the G.S. (r=-0.22) (2) There is a negation Correlation in the P.E.D.S. (r=-0.32) (3) There is a significant positive correlation in the E.P. (r=0. 55)

      • 신원방우황청심원의 뇌허혈 및 중추신경계에 미치는 영향

        조태순,이선미,이은방,조성익,김용기,신대희,박대규 성균관대학교 약학연구소 1999 成均藥硏論文集 Vol.11 No.-

        Abstract-In order to investigate pharmacological properties of New Wonbang Woohwangchungsimwon Pill(NSCH) and Wonbang Woohwangchungsimwon Pill (SCH), the effects of NSCH and SCH on cerebral ischemia and central nervous system were compared. Cerebral ischemia insult was performed using unilateral carotid artery occlusion in mongolian gerbils. The histological observations showed preventive effects of NSCH and SCH treatments with ischemia-induced brain damage. The ATP in brain tissue was decreased in vehicle-treated ischemic gerbils. This decrease was prevented by SCH treatment. In contrast to what was seen with ATP, lipid peroxide were elevated in vehicle-treated ischemic gerbils. This elevation was inhibited by NSCH and SCH treatments. While NSCH and SCH had no effects on the hexobarbital-induced sleeping time, they prevented the seizures induced by eletric shock and strychnine. NSCH and SCH showed sedative effect in rotarod and spontaneous activity test. Furthermore, NSCH and SCH showed anti-stress effect. Our findings suggest that the pharmacological profiles of NSCH on cerebral ischemia and central nervous system are similar to those of SCH.

      • KCI등재후보

        성인의 복잡성 복강내 감염증의 치료에서 Ertapenem 단독투여와 Ceftriaxone과 Metronidazole 병용투여의 안전성과 유효성 평가를 위한 다기관, 공개, 무작위, 비교 임상연구

        조용균,이정남,서성옥,김선회,장진영,김상걸,윤영국,이우정,김민자 대한감염학회 2005 감염과 화학요법 Vol.37 No.6

        Background : Ertapenem, a novel β-lactam agent with a wide range of activity, has a pharmacokinetic profile and antimicrobial spectrum that support its potential use as a once-a-day agent for the treatment of common mixed aerobic and anaerobic pathogens encountered in intraabdominal infections. Materials and Methods : The prospective, randomized, controlled, open, and multicenter trial was conducted to compare the clinical efficacy and safety of ertapenem with ceftriaxone plus metronidazole as therapy before or following adequate surgical management of complicated intraabdominal infections. Results : One hundred sixty-three patients were included in the modified intent-to-treat population, of which 134 were clinically evaluable. Patients with a wide range of infections were enrolled; perforated appendicitis or periappendiceal abscess were most common. As for the modified intent- to-treat groups, 71 of 72 (98.6%) patients treated with ertapenem and 73 of 80 (91.3%) treated with ceftriaxone/metronidazole showed favorable clinical response. Conclusion : In this study, the efficacy of ertapenem was equivalent to ceftriaxone plus metronidazole in the treatment of complicated intraabdominal infections. Ertapenem was generally well tolerated and had a similar safety and tolerability profile compared to ceftriaxone plus metronidazole. The results of this trial suggest that ertapenem could be considered as a useful option that could eliminate the need for combination and/or multi-dosed antibiotic regimens for the empiric treatment of complicated intraabdominal infections.

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