참깨의 비닐피복 기계화 일관작업 체계 연구

강철환,이병규,안병옥,박충범,노재환,이성우,이승택,홍종태,이선호,김석현,이상철,김완석,Kang, Chul-Whan,Lee, Byoung-Kyu,Ahn, Byoung-Ok,Park, Choong-Bum,Roh, Jae-Hwan,Lee, Seong-Woo,Lee, Seung-Tack,Hong, Jong-Tae,Lee, Sun-Ho,Kim, Seok-Hyeon 한국작물학회 1997 한국작물학회지 Vol.42 No.5

This study was carried out to develop and investigate integrated mechanization system on polyethylene(P.E.) film mulching culture in sesame. Field trials were carried out to develop optimum mechanics for each step of manual operation in sesame culture and demonstrated those developed mechanics of sesame dibbling vinyl mulcher, sesame binder, sesame thresher and sesame grader at the farmer, s field of Hwasong (Kyunggi-do) in 1994 and 1995. Newly developed sesame dibbling vinyl mulcher brought saving manpower 280 hrs /ha for sowing and P.E. film mulching with it's 98% of labour saving for the harvesting operation of sesame. Sesame Binder showed 93% labour saving for cutting and binding with only 22 hrs /ha compared to 330 hrs /ha that of conventional. Sesame thresher was appeared to have 85% effects of labour saving for threshing with completely dry sesame bundles at one time by 23 hrs /ha compared to 151 hrs /ha that of conventional. Sesame grader was appeared to have 72% effects for sesame grain grading with 12 hrs /ha compared to that of conventional 54 hrs /ha. Grain yield of integrated mechanization culture system showed 6% higher than that of coventional. Integrated mechanization culture system (sesame dibbling vinyl mulcher + sesame binder + sesame thresher + sasame grader) showed 62% of labour saving effects through whole steps of sesame culture by 472 hrs /ha compared to that of conventional 1, 230 hrs /ha.

응급의료센터 성과 평가 기준개발과 적용

강철환,김윤,이평수,권영대,김창엽,신영수,Kang, Chul-Hwan,Kim, Yoon,Lee, Pyung-Soo,Kwon, Young-Dae,Kim, Chang-Yup,Shin, Young-Soo 대한예방의학회 1997 예방의학회지 Vol.30 No.4

Currently, there are 100 community emergency centers which expect to provide professional emergency care like Level 1 trauma centers in U.S.A. To evaluate perforance of emergency centers, most studies have been widely adopted death rate based methods such as Trauma and Injury Severity Score(TRISS) and A Severity Characterization of Trauma(ASCOT). However, these methods are only applicable in situation where registration process of trauma patients is well established. Therefore, an alternative method should be applied to evaluate performance of emergency centers in Korea which does not have well-developed registration scheme. This study aims to develop new performance measures which are applicable to Korea and evaluate performance of 35 community emergency centers through new measures. The new measures are included that 'W-statistic' ; death rate calculated on the basis of International Classification based Injury Severity Score(ICISS), and 'the degree of severity' ; rate of severe trauma patients of each emergency medical centers. The study results can be summarized as follows. First, about 34% of sample emergency centers show they provide proper care in terms of their function. Second, tertiary hospitals, university hospitals, and hospitals located in Seoul show higher severity degree of patients and lower severity-adjusted death rate.

국군의무사령부 보건통계 개선에 관한 연구

강철환 ( Kang Chul-hwan ),홍영습 ( Young Sup Hong ) 국군의무사령부 2001 대한군진의학학술지 Vol.32 No.1

중환자실의 중증도 보정 사망률 변이

강철환 ( Chul Hwan Kang ),김용익 ( Yong Ik Kim ),이은정 ( Eun Jung Lee ),박건희 ( Kun Hee Park ),이진석 ( Jin Seok Lee ),김윤 ( Yoon Kim ) 대한마취과학회 2009 Korean Journal of Anesthesiology Vol.57 No.6

Background: This study aimed to estimate risk adjusted mortality rate in the ICUs (Intensive care units) by APACHE (Acute Physiology And Chronic Health Evaluation) III for revealing the performance variation in ICUs. Methods: This study focused on 1,090 patients in the ICUs of 18 hospitals. For establishing risk adjusted mortality predictive model, logistic regression analysis was performed. APACHE III, surgery experience, admission route, and major disease categories were used as independent variables. The performance of each model was evaluated by c-statistic and goodness-of-fit test of Hosmer-Lemeshow. Using this predictive model, the performance of each ICU was tested as ratio of predictive mortality rate and observed mortality rate. Results: The average observed mortality rate was 24.1%. The model including APACHE III score, admission route, and major disease categories was signified as the fittest one. After risk adjustment, the ratio of predictive mortality rate and observed mortality rate was distributed from 0.49 to 1.55. Conclusions: The variation in risk adjusted mortality among ICUs was wide. The effort to reduce this quality difference is needed. (Korean J Anesthesiol 2009; 57: 698∼703)

군 코호트 구축을 위한 사전 연구

강철환 ( Chul Hwan Kang ),김승육 ( Seung Yuck Kim ) 국군의무사령부 1998 대한군진의학학술지 Vol.29 No.1

우리 나라 전산화단층촬영기(CT)의 도입에 영향을 미치는 요인에 관한 연구

윤석준,김선민,강철환,김창엽,신영수,Yoon, Seok-Jun,Kim, Sun-Mean,Kang, Chul-Hwan,Kim, Chang-Yup,Shin, Young-Soo 대한예방의학회 1997 예방의학회지 Vol.30 No.1

High price equipment is one of the major factors that increases national health expenditure in developed countries. Computerized Tomography(CT), one of the important high price equipment, has been concerns of health service researchers and policy makers in many countries. In Korea, CT, first introduced in 1984, have spreaded nationwide with rapid speed. Though the Committee for Approving Import of High Price Medical Equipment, founded in 1981, tried to regulate the introduction of high price medical equipment including CT, the effort resulted in failure. The exact situation of diffusion of the high price equipment, however, was not yet investigated. We aimed at the description of the diffusion of CT in Korea and analysis of influencing factors on hospitals for the adoption of CT. We mainly used the database of CT, made in 1996 by the National Federation of Medical Insurance for the purpose of insurance payment for CT. Also characteristics of hospitals were gathered from yearbooks published by the central and local governments and by the Korean Hospital Association. We calculated the cumulative number of the CT per one million population year by year. In turn, multiple linear logistic regression was done to find out the contributing factors for the adoption of CT by each hospital. In the logistic regression model, it is regarded as dependent factor whether a hospital retained CT or not in 1988 and 1993. The major categories of the independent factors were hospital characteristics, environmental factors and competitive conditions of hospitals at the period of the adoption. The results are as follows: Number of CT scanners per one million persons in Korea marked more higher level compared with those of most OECD countries. Major influencing factors on the adoption of CT scanners were hospital characteristics, such as hospital referral level, and competitive condition of hospitals, such as number of CT scanners per 10,000 persons in each district where the hospital was located. In Korea, CT diffused with rather rapid speed, comparable with those of the United States and Japan. The major factors contributing on the adoption of CT for hospitals were competitive condition and hospital characteristics rather than regional health care need for CT. In conclusion, a kind of regulating mechanism would be necessary for the prevention of the indiscreet adoption and inefficient use of high price equipment including CT.

국군부산병원 재활병동환자 운동프로그램 개발 및 시행효과

김성혜 ( Sung-hye Kim ),강철환 ( Kang-chul Hwan ),최현규 ( Hyun-kyu Choi ),강유진 ( Yoo-jin Kang ) 국군의무사령부 2017 대한군진의학학술지 Vol.48 No.1

Objectives: Development and application of customized exercise rehabilitation program for rehabilitation ward inpatients in Busan military hospital helped pain relief, improved muscle strength and reduced body fats. And the purpose of this study was to improve the satisfaction or inpatients in rehabilitation ward and exercise rehabilitation treatment room. Methods: From November 1, 2013 to July 31,2014. the primary care physician selected 181 patients who were hospitalized in orthopedic and neurosurgery in Busan military hospital. To start operating the rehabilitation ward and the exercise rehabilitation treatment room, we secured the budget (110 million won) and made operation plans. And satisfaction survey of the patients who participated in the pilot project for 6 months was done. Muscle circumference and body fat were measured by a rehabilitation Nursing officers & rehabilitation doctor. Results: Of the objects, 148(82%) were orthopedic patients, sergeant 30(16.6%), corporal 70(38.7%), private & private first class 81(44.7%) by rank. Period of funding is less than 2weeks 28(15.5%), 3-4weeks 98(54.1%). Knee 51(28.2%), ankle 57(31.5%), shoulder 25(13.8%), back 22(12.2%), small joint(finger, toe, etc) by site. More than 80% of the patients who participated in rehabilitation ward pilot project told treatment satisfaction and reduction of pain are enhanced after project. Especially satisfaction of exercise rehabilitation treatment room was higher than rehabilitation ward. Pain relief was also associated with the duration of the stay and was improved proportionally. The percentage of body fat was increased at first and decreased after 3-4weeks. Because of short study period,re-evaluation and further research will be needed. Conclusions: In order to strengthen the medical care capacity of military hospitals, reinforcement of direct nursing for acute care patients and applying rehabilitation therapy program to military patients who do not need hospitalization are important. And patient turnover rate could be improved through this distinctive care.

국내산과 국외산 참깨의 이화학적 특성 비교

강명화(Myung-Hwa Kang),류수노(Su-Noh Ryu),방진기(Jin-Ki Bang),강철환(Chul-Hwan Kang),김동휘(Dong-Hwi Kim),이봉호(Bong-Ho Lee) 한국식품영양과학회 2000 한국식품영양과학회지 Vol.29 No.2

국내산과 국외산 참깨의 이화학적 특성을 파악하기 위해 일반성분 분석, 지방산 조성, 무기질 함량(Ca, K, Mg, Na) 및 세사민과 세사몰린 함량를 분석한 결과를 요약하면 다음과 같다. 한국산, 중국산, 수단산 참깨의 일반성분 분석 결과 조단백질 함량과 기름양에서 수단산이 약간 높게 나타났다. 올레산과 리놀산을 합한 총 양질 불포화 지방산은 한국산 88.48%, 중국산 84.97%, 수단산 86.39%로 한국산 참깨가 양질의 지방산을 다량 함유하였다. Ca, K, Na, Mg 성분 분석 결과 한국산 참깨는 Mg이 중국산 참깨는 Ca 함량이 높게 나타났다. 참깨 종실과 탈지박 간에 무기 성분에는 유의적인 차이가 없었다. 참깨 중 세사민과 세사몰린 성분 분석 결과 한국산 참깨가 중국산과 수단산보다 유의적으로 높은 수준이었다(p<0.05). 참깨의 일반성분 분석 결과 한국산, 중국산, 수단산 참깨간에는 미미한 차이였지만 세사민과 세사몰린과 같은 특수성분에서 한국산이 유의적으로 높은 수준(p<0.05)으로 나타나 이화학적 특성이 우수할 것으로 생각된다. To obtain basic information for the quality evaluation, the introduced or domestic sesame seeds were investigated to measure proximate components (crude protein, ash, mineral and oil) and isolated by preparative HPLC system for lignan contents. Although crude protein contents were the highest in Sudan sesame seeds, lipid, ash and mineral contents were not significantly (p<0.05) different between introduced and domestic sesame seeds. Unsaturated fatty acids such as oleic and linoleic acids were the highest in the domestic sesame seeds. The Mg content of domestic sesame seeds also was larger than that of introduced sesame seeds. A Ca content of domestic sesame seeds, however, was significantly (p<0.05) lower than that of China. Lignan contents, the most important component known as antioxidant, were significantly (p<0.05) higher in domestic sesame seeds than other sesame seeds tested. Our findings suggest that domestic sesame seed has the best quality in terms of the functional components.

주진료경로 개발 연구

김진하 ( Kim Jin Ha ),강철환 ( Kang Chul_hwan ) 국군의무사령부 2001 대한군진의학학술지 Vol.32 No.1

대유행 인플루엔자(H1N1 2009) 환자 가족에서 인플루엔자 (H1N1 2009) 검사 양성률

김학령,전한호,김민,강철환,박경화 대한감염학회 2010 감염과 화학요법 Vol.42 No.2

Background: Influenza transmission in households a subject of renewed interest especially in pandemic situation. We performed this study to investigate the laboratory-confirmatory rate in household contacts with index cases of pandemic influenza (H1N1 2009). Materials and Methods: For three months from 1 September and 29 November 2009, people who had a history of close contact with confirmed cases of pandemic influenza (index case) were recruited. The information on the study participants was collected using a standardized questionnaire. Presence of the pandemic influenza (H1N1 2009) infection was confirmed by real-time reversetranscription polymerase chain reaction (RT-PCR). Results: A total of 113 index cases and 141 household contacts were investigated. One hundred and four index cases (92.0%) were younger than 20 years. The median age of household contacts was 40 years. Twenty eight household contacts (19.8%) had acute respiratory illness (ARI). Overall, 10.6% of enrolled household contacts were positive in RT-PCR for pandemic influenza (H1N1 2009). The positive rate of household contacts with ARI was 25.0% and it was 7.1% in household contacts without ARI. The positive rate was significantly higher in children and young adults under 30 years (28.3%) compared with that in household contacts older than 30 years (8.3%). Conclusions: This results showed a significant role of mild symptomatic or asymptomatic pandemic influenza (H1N1 2009) patients as a virus carriers in households.