인체 공중 동작 시뮬레이션 프로그램 개발

성낙준,권영후 한국운동역학회 1994 한국운동역학회지 Vol.4 No.2

A comprehensive simulation software package was developed in C base on the work done by Yeadon et al.(1990) and Kwon (1993a) in the aim of making it easy to apply the experimental simulation technigues to the human airborne movement studies. This package consists of 3 programs: simulation variable computation program (PREP), simulation program (SIM) and the 3-dimensional graphic program (3DMAN). All programs are driven by an easy-to-use menu system and written compatible to KWON3D Motion Analysis Package Version 2.1 (Kwon, 1993b). Program PREP consists of 4 menus: `Edit Data´, `Prepare´ `Angular Momentum´ and `Optimization´. The `Edit Data´ environment is an editor for the lengths of the segments and body lines. The `Prepare´ menu computes the internal orientation angles of the segments while the `Angular Momentum´ menu computes the mean airborne angular momentum of the body and other initial conditions such as the initial position and velocity of the body CM and the initial external orientation of the body. The `Optimization´ menu performs angular momentum optimization proposed by Kwon (1993a). A geometric 15-segment body model - Yeadon-Kwon model (Kwon, 1993b) - with at most 38 degrees of freedom including 3 external orientation angles (somersault, inclination and twist angles) was employed to compute the simulation variables. SIM consists of 2 menus: `Edit Angles´ and `Simulate´. The `Edit Angles´ environment is an editor for the internal orientation angles of the segments. Users can intentionally manipulate the internal orientation angles for the simulation of modified trials. The program displays time-angle curves segment by segment. The `Simulate´ menu actually performs simulation. The initial conditions can be directly manipulated in the program menu environment. The simulation program was tested by several theoretical configurations to screen out the flaws in the theory and to isolate coding mistakes. The simulated results were compared with the predicted results and the program showed good agreements between the simulated results and the theoretical predictions. The simulation program was then applied to several gymnastic maneuvers and springboard dives for testing. 3DMAN was developed in the extension of the traditional `Stick Figure´ graphics. The program is segment-oriented and the 3-D shape of each segment is defined defined independently in a graphic model file to allow the users to use different body models with different, combinations of segments. The model file was designed easy to edit so as to allow the users to change the graphic model easily to meet their specific needs. The graphic model file can be edited using any text editor such as `EDIT´ of DOS. Once the `3-D Graphics´ option is activated followed by the registration of the graphic model files, the program draws the 3-D shapes of the segments whose model files are registered. All the graphics-related menus including registration of the segment graphic model files are accessible within the graphic environment.

서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

소형 트럭용 CNG/가솔린 겸용 엔진 개발과 성능 분석

권오운,김재수,박용국,김성준 江原大學校 産業技術硏究所 2006 産業技術硏究 Vol.26 No.B

A diesel truck of 1 ton is re-powered by a gasoline engine and the fuelling system of gasoline engine is modified to gasoline/CNG bi-fuel system. The engine characteristics such as fuel economy and power are evaluated by driving test, sloping test and dynamometer. The driving test prove the driving cost is saved by 55% and the maximum speed is raised by 13%, which is mainly due to the higher calorific value of CNG. The sloping test is done on thc road of which slope is 15%. The truck shows the mean velocity of 88km/h, which means that are-powered truck is working fine. The BHP are measurcd by dynamomcter. The-power and torque produced by a re-powered truck are reduced by 13% and 14% respectively from the power of gasoline engine. The BHP reduction is one of main problems which one has to solve in near future.

전하이동 착물형성에 따른 Mechanism 및 용매의 영향

權五윤,崔相元,徐鎬埈 여수대학교 1989 論文集 Vol.3 No.-

The formation of charge transfer complex between iodine and aniline in CHCl₃CHCl₄: CH₂Cl₂(1:1), CH₂Cl₂have been studied kinetically by using conductivity method. The initially formed outer charge transfer complex was transformed into a inner charge transfer complex. The pseudo first order rate constants and activation entropy are affected by solvent dielectric constant. The second order rate constants for the decomposition of the outer charge tranfer complex (first order in aniline and in the outer charge transfer complex) depend on the aniline concentration. The ease with which the transfermation proceeds depends on the relative magnitudes of the enthalpy of formation of the outer charge transfer complex as well as aniline concentration.

양극성장애환자의 정신사회적 스트레스에 관한 연구

권영준,한상우,한선호 순천향대학교 1990 논문집 Vol.13 No.1

The psychosocial stressors experienced in the 6 months prior to the admission were studied in 62(27 male and 35 female) inpatients who mets DSM-Ⅲ criteria for bipolar disorder and were hospitalized in the Neuropsychiatric department of Soonchunhyang University Hospital from January 1987 to August 1989. The results were as follows; 1. Among the 249 cases, 36(58.1%) cases had the psychosocial stressors prior to admission. 2. 40.7% of male cases and 71.4% of female cases had the psychosocial stressors prior to admission. Female cases had significantly higher relation to the psychosocial stressors. 3. By the age variable, there was not significant difference in relation to the psychosocial stressors prior to admission. 4. By the different educational level, there was not significant difference in relation to psychosocial stressors prior to admission. 5. By the occupation variable, there was not significant difference in relation to the psychosocial stressors prior to admission. 6. The frequency of the psychosocial stressors was in the order of occupational problems(36.1%), other interpersonal problems(22.1%), financial problems(11.1%) conjugal problems(11.1%).

都市便益施設에 의한 定住環境 分析에 관한 硏究

權俊五,金宇赫,姜聲泰 조선대학교 국토개발연구소 1996 국토개발연구 Vol.16 No.1

This Study is to obtain the technical index using the urban facilities on the objects of urban in Korea, compares and analyzes the urban scale of according to the population, analyzes the living environment of urban and them is to suggest the policies for the balanced development of nation and the effective growth of urban systems, and the research of nation and the effective growth of urban systems, and the research results are as follows; ① in the case of the urban of the population more than 500,000, educational, hygienic and cultural facilities have the most influence on it, ② in the case of one with 200,000 to 500,000, information, communication, social welfare, administration and leisure facilities and ③ in the cse of one with population less than 200,000, social welfare, leisure and hygienic facilities, so, it is considered that the expansion of each urban facility is required in the living environment of each city.

패밀리 셋업이 존재하는 병렬기계 일정계획 수립

권익현,신현준,엄동환,김성식 한국경영과학회 2005 한국경영과학회지 Vol.30 No.1

This paper considers identical parallel machine scheduling problem. Each job has a processing time, due date, weight and family type. If a different type of job is follow by prior job, a family setup is incurred. A two phased heuristic is presented for minimizing the sum of weighted tardiness. In the first phase, using rolling horizon technique, group each job into same family and schedule each family. In the second phase, assign each job to machines using schedule obtained in the first phase. Extensive computational experiments and comparisons among other algorithms are carried out to show the efficiency of the proposed algorithm.

肝吸蟲症 診斷에 있어서 間接螢光抗體 反應(IFAT)의 應用에 관한 硏究

權貴香,李駿商,林漢鍾 고려대학교 의과대학 1984 고려대 의대 잡지 Vol.21 No.1

Human clonorchiasis is one of the most common trematode disease and of very important public health problem in Korea. A number of serological techniques have been in use for diagnosing parasitic diseases, efforts in recent years have been made for the development of a more new promising serological technique. The present study was conducted to evaluate to evaluate the diagnostic potentialities of human clonorchiasis by the indirect fluorescent antibody test (IFAT) using frozen sectioned antigen of adult worm of Clonorchis sinensis. A total of 117 sera from clonorchiasis patients, 16 sera from persons with other parasitic infections and 9 sera from non-infected healthy persons were tested. Frozen sections of adult worm of C. sinensis were placed on the spot-slide and incubated in two fold serially diluted sera and subsequently stained with goat anti-human immunoglobulin labeled with fluorescein isothiocyanate and Evans blue. The worm sections were examined with a fluorescent microscope, A.P\O. Series No. 10 Microstar. If the test is negative, the preparations are colored a uniform red. On ? other hand, if the test is positive, the adult worm sections display an intense green fluorescence localized in the tegumental region of C. sinensis. The results obtained are as follows: 1. The results indicated that IFA titers at 1/16 were regarded as positive reaction. Therefore, the positive reaction revealed in 72 (61.5%) out of 117 sera from clonorchiasis patients. 2. In the intensity of Clonorchis infection, the positive reactions of IFA titers showed 28.1% in light infection, 68.9% in moderate infection, 77.8% and 84.6% in heavy and very heavy infection respectively. 3. All serum samples from 16 cases infected with parasites other than Clonorchis were diagnosed as negative. Only one out of 9 sera from non-infected healthy cases showed false positive. With the above results, IFAT has great practical advantage since the antigen is easy to place on slides and easier reading than those of adult C. sinensis particles as an antigen. Therefore, this study suggest tat the IFAT can be applied in the diagnosis of human clonorchiasis.

완전 기저 동맥 중복과 동반된 모야모야병(Moyamoya disease) 1예

권준범,양현덕,한범기,이지용,문준식,이성수 대한신경과학회 1999 대한신경과학회지 Vol.17 No.2

대학병원 정신과 외래 환자의 약물순응도

권준수,신성웅,정영미,박경호 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.3

Objective : In view of the facts that education about diseases and realization of the need form drugs can improve compliance of the patients, we assessed the knowledge about drugs and medication compliance in psychiatric outpatients. In addition, we investigated factors that influence patients compliance to develop a model of medication compliance. Methods : One-hundred twelve male and eighty female psychiatric outpatient were asked about drug information using questionnaires. We developed a model that predicts medication compliance using chi square tests and multiple regression analysis. Results : More than a half of the patients knew at least one of the names and the effects of the drugs they had taken, but many of them didn't know the side effects of drugs. About eighty percent of the patients showed good compliance. Knowledge of side effects, belief in the benefits of drugs, and level of education could predict medication compliance reliably. Conclusions : Because education level could not be managed by physician, we could enhance compliance through education about drug side effects and benefits of medications.