여자 테니스 선수의 양손 백핸드 스트로크 동작시 상지의 근전도 분석

유국종,서국웅,윤양진,이훈식,정미라,서국은 한국운동역학회 2000 한국운동역학회지 Vol.9 No.2

This study analzed AEMG, muscle activity duration time, peak value and work load of six high school student players, three college student players, three business team players in order to analyze Arm's EMG when they play games with two-handed backhand stroke. The instruments of measuring EMG are muscle tester ME3000p. And measured parts of muscle are the triceps brachii, biceps brachii, brachioradialis and flexor carpi radialis of body left and right arm. The following is the result according to the analysis of raw data and statistics. 1. The AEMG of trained group was higher than the untrained. In both groups AEMG of right arm was higher than left one. And AEMG of forearm was higher than upperarm. The order of high AEMG among the trained is as followed ; right biceps brachii, left brachii, right brachioradialis. Among the untrained ; right brachioradialis, left brachioradialis, biceps brachii. 2. The muscle activity duration time of the trained group was totally shorter than the untrained. In both groups muscle activity duration time of the right arm was shorter than the left one. As to trained muscle activity duration time of upperarm is shorter than the forearm. Contrarily, as to untrained muscle activity duration time forearm is shorter than the upperarm. The order of short muscle activity duration time among the trained is as followed ; right biceps brachii, triceps brachii, left flexor carpi radialis. 3. The peak value of trained group was higher than the untrained. In body groups peak value of the right arm was higher than the left one. As to the trained the peak of the upperarm is higher than the forearm. Contrarily, as to the untrained, the peak value of the forearm was higher the upperarm. The order of high peak value among the trained is as followed ; right biceps brachii, left biceps brachii, right brachioradialis. Among the untrained, right brachioradialis, left biceps brachii, brachioradialis.

환경친화적 지역개발을 위한 봉화군의 자원평가

황국웅,엄붕훈 한국지리정보학회 2003 한국지리정보학회지 Vol.6 No.2

본 연구는 경상북도 봉화군에 대하여 생태관광, 생태마을 또는 퍼머켤쳐 등의 새로운 환경친화적 계획 패러다임을 적용한 자원평가 지표체계에 의하여 GIS를 사용하여 이들 지역들에 대한 자원평가를 시행하였다. 이 때, GIS를 이용하여 가중치를 반영한 지점별 평가가 이루어지도록 하였으며, 면별로 평가 점수를 비교하였다. 그 결과, 봉화읍 중에서도 닭실마을이 있는 지역이 가장 높은 점수를 받았으며, 면별 평균점수를 비교하였을 때, 봉화읍이 1위, 소천면이 2위, 춘양면이 3위의 점수를 받았다. 종합적으로 평가할 때, 상대적으로 높은 점수를 받은 지역은 봉화읍의 평지지역과 닭실마을, 춘양면의 북동부지역, 소천면의 북서부지역과 남동부지역 등으로 나타났다. 본 연구에서는 자원평가 지표체계에 의하여 GIS를 사용한 자원평가를 수행하였으며, 그 과정에서 발견되는 문제점에 대한 해결방안을 제시하였다. Resource evaluation for environment-friendly regional planning using GIS was implemented in Bonghwa-gun, Gyeongsangbuk-do And new paradigms such as 'green tourism', 'eco-tourism'. 'eco-village', were considered and applied into resource indicator system. The weighted evaluation was carried out into pixel units and the scores of every 'myeon' were compared with each others. As a result, the area that has the 'Dak-sil-ma-eul' village in Bonghwa-eup got the highest score. When compared every 'myeon' in mean scores, Bonghwa-eup got the first grade, Socheon-myeon the second grade and Choonyang-myeon the third grade. In a comprehensive view, the areas that got higher scores were the lower flat areas and the 'Dak-sil-ma-eul' village in Bonghwa-eup, north-east areas in Choonyang-myeon, north-west areas and south-east areas in Socheon-myeon. In this study, resource evaluation using indicator system and GIS was implemented, and some problems that appeared in this process were resolved.

평균 배기 압력 구배 지수를 이용한 실화 검출 방법

심국상,최민호,김세웅 金烏工科大學校 2000 論文集 Vol.21 No.-

This paper proposes a method to detect the misfired cylinder using a new misfire detection index. The new method of misfired cylinder is a comparison of pressure gradient during the blowdown period of exhaust stroke. If a misfire occurs, the engine will be lost some power and consumes the more fuel and the torque will be unsteady. Most of all, the misfire affects a bad influence of the 3-way catalyst and emits unburned hydrocarbon in the air. To prevent these unusual phenomena and eliminate the factor of the environmental pollution, it is important to detect the misfired cylinder. To do the experiment, set up the assist device on the conventional exhaust manifold. This assist device is not deformed for conventional exhaust manifold and installed in the end of the exhaust manifold. Experimental results showed that the method using the mean gradient pressure index is proven to be effective in the detection of misfired cylinder on gasoline engine regardless loads and revolutions of the engine

공기 보조 분사 장치를 이용한 엔진 성능 향상 및 연비 개선

김세웅,심국상,이근봉 金烏工科大學校 1995 論文集 Vol.16 No.-

This paper describes the improvement of engine performence and fuel consumption through improved combustion formed by the tumble and swirl flows of an in-cylinder fuel-air mixture that uses an air forced fuel injector(AFI) which used compressed air. The AFI is designed to promote fuel atomization and to form uniform fuel-air mixture. In order to make up the tumble and the swirl flows of the in-cylinder mixture, the end of AFI is attached to the tube containing the fuel-air mixture to ensure the adequate flow and to ensure that the remaining kinds of mixture will flow effectively. In order to investigate the improvement of engine performence and fuel consumption, 2 models of tubes which make tumble and swirl flows were utilized. Each model was examined according to engine speed, intake manifold pressure and excess air ratio and compared with a base engine. Compared with the base engine, the results show that the AFI improves the engine performance and the brake specific fuel consumption(BSFC) in all of the engine speeds and the boost pressures at the tumble and the swirlflows. It also decreases exhaust emission of hydrocarbon(HC)

韓國産고추의 品質에 關한 綜合的 硏究

裵國雄,李盛雨 漢陽大學校 韓國生活科學硏究所 1990 韓國 生活 科學 硏究 Vol.- No.9

In order to evaluate the overall Korean red pepper's quality, Jeongseon-Jaerae and Hot-Portugal varieties were selected as samples and purchased from Kyungdong market located in Seoul which confirmed the varieties and drying methods(sun drying and hot air drying). The pericarp, seed, placenta and stem were separated and then general properties, general compositions, capsaicinoids, chromatocity, free amino acids, organic acids, free sugars, vitamin C, fatty acids and 5'-nucleotides were analyzed. The results are summarized as follows. 1.Properties of red pepper were not affected by the drying methods. In the weight ratio of each part, there were no difference between drying methods, however some varieties of Hot -Portugal contained a smaller amount of pericarps(45%) and higher content of seed(44∼45%) compared to the Jeongseon-Jaerae variety (49% in pericarps, 42∼43% in seed ). 2.General compositions of red peppers were as follows. Moisture content was 7∼9%, total sugar was 63%, crude protein was 15∼16.5%, crude fat was 15∼16% and the crude ash was 5∼6.5%. Varieties and drying methods of red peppers did not produce any significant difference in the composition of general constituents. 3.Capsaicinoids of red peppers were quantitatively analyzed by HPLC and then identified with GC -MS. As a result, 3 kinds of homologous such as nordihydrocapsaicin, capsaicin and dihydrocapsaicin were confirmed. Dihydrocapsaicin was mainly detected in the placenta. Capsaicinoids content in each part of red peppers were higher in placenta. There was no remarkable tendency of capsaicinoids content in each part of red peppers according to varieties, but the total amount of capsaicinoids in Jeongseon-Jaerae was 2∼3 times larger than what was found in the Hot -Portugal. The total amount of capsaicinoids in sun dried red peppers was larger than the amount in hot air dried red peppers. 4.The pericarp powder of red poppers was suitable for sample of color evaluation. On Hunfer-lab values, L value(brightness) and a value(red) of pericarp powder were higher in Jeongseon-Jaerae than in Hot-Portugal. In Jeongseon-Jaerae, it was about 15% higher in sun dried red peppers compared to hot air dried. On the other hand, there was no significant difference in Hot-Portugal according to drying methods. Also b value(yellow) showed same tendency of L and a value. The ratio of a to b(a/b) was higher in Hot -Portugal than in Jeongseon-Jaerae. The ratio was higher in sun dried red poppers of both varieties. In means sun dried red peppers show more intense color than hot air dried ones. 5.Total seventeen kinds of free amino acids were identified in each part of red peppers and amount of free amino acids of the Jeongseon-Jaerae were larger than in the Hot-Portugal. Pro-line was contained comparatively larger amount in all parts of the red peppers regardless of varieties and drying methods, except seed portion. And except seed, amount of free amino acids were larger in sun dried red peppers of both varieties. 6.As organic acids contained in each part of red poppers were succinic acid, fumaric acid, malic acid, citric acid and quinic acid, and these five kinds of organic acids were isolated. Among these acids, the content of quinic acid was highest in each part, namely Jeongseon-Jaerae showed 93∼97% and in Hot-Portugal showed 92% of total organic acid content. As a whole, total amount of organic acids were larger in Jeongseon-Jaerae than in Hot-Portugal regardless of drying methods. In the Jeongseon-Jaerae, the amount of organic acids were slightly larger in hot air dried red pepper. 7.Total amount of free sugary were larger in Hot -Portugal than in the Jeongseon-Jaerae. As reducing sugars, fructose and glucose were mostly contained in the pericarp in both varieties of red peppers regardless of drying methods, and sucrose was mainly contained in seeds. Also in Jeongseon-Jaerae, in each part, larger amount of free sugars were contained in hot air dried red pepper compared to the sun dried ones. But there was not much difference in the Hot-Portugal according to drying methods. 8.Vitamin C was mainly distributed in pericarp, and in placenta only small amount was contained. Under the same drying method, the vitamin C content of Hot-Portugal was slightly higher than Jeongseon-Jaerae. The vitamin C content in pericarps was higher in hot air dried red pepper than in the sun dried ones regardless varieties. 9.In the twelve kinds of fatty acids which were isolated and confirmed, the highest content of fatty acid was linoleic acid and next was oleic acid or palmitic acid. There was no difference between drying methods. Especially, there was no difference in unsaturated fatty acids content according to drying methods. 10.Using HPLC, 5'-nucleotides such as CMP, AMP and IMP of red peppers were isolated and identified. Total amount of 5'-nucleotides were 4 times lager in Jeongseon-Jaerae than in the Hot -Portugal. The CMP content was highest in the pericarp of the Jeongseon-Jaerae, mean while IMP was highest in the pericarp of Hot-Portugal. 5'-Nucleotides content of hot air dried red peppers were smaller in both varieties. 11.Regardless of varieties or drying methods, capsaicinoids content and 5'-nucleotides content were in direct proportion but vitamin C content comparing to capsaicinoids or 5 -nucleotides was in inverse proportion. Free sugars and vitamin C content were higher in Hot-Portugal. Organic acids, capsaicinoids. 5'-nucleotides and total flavoring amino acids content were higher in the Jeongseon-Jaerae. The red pepper of sun dried Jeongseon-Jaelae contained a relatively small amount of free sugar, but capsaicinoids content was large, so it has strong hot taste and the palatability is also excellent. The color intensity was also proper, and will show high acceptability as a food stuff.

여자고등학생들의 운동흥미에 관한 연구 : 서울과 경남지방과의 비교 COMPARISION BETWEEN SEOUL AND KYUNG-NAM AREA

徐國雄 부산대학교 사범대학 1976 교사교육연구 Vol.3 No.2

This study way made through the questionnaire against 190 of girls' high school students in Seoul and local area, enforced from September 1, 1976 to September 25, 1976. The results are as follows: 1) The local shows arendency to have dull interest than Seoul. 2) The girl students are will to exercise, putting first consideration to interest. 3) They have keen interest in athletic sports owing to the physical charter system for entrance examination for college. 4) They want that theory and real talent would be mixed in physical education, and as they get older they want only real talent. 5) Students in Seoul prefer to male teacher and the students in local area prefer to female teacher. 6) As the girls enjoying the benefits of civilization in Seoul have keen interest in exercise, I have found that the benefits of civilization have a good effect on sports.

가솔린 기관의 배기계 압력 특성 분석

김세웅,복중혁,심국상 金烏工科大學校 1997 論文集 Vol.18 No.-

This paper describes the characteristics of pressure in the exhaust system. Exhaust system of gasoline engine consists of an exhaust manifold, a primary and a secondary muffler and a 3-way catalyst. And these compositions are tested in the before and behind of each composition. The pressure waves of burnt gas generated in the 4 stroke and 4 cylinder engine are formatted tatal eight pressure waves during the one cycle. The first pressure wave is generated by blowdown and the second pressure wave is generated by burnt gas and velocity of ascending piston. These pressure waves depend on pressure of burnt gas and the second pressure wave is bigger than the first pressure wave as the increased of load. If pressure waves in the exhaust system are analyzed, the cylinder of normal or abnormal combustion is classified and the misfire cylinder could be detected.

GOS가 장내 Bifidobacteria의 생육촉진에 미치는 영향에 관한 연구

강국희,문지웅,강대중,이재영 成均館大學校 科學技術硏究所 1993 論文集 Vol.44 No.2

We investigated the growth effect of various sugars on the principal intestinal microorganisms which were Bifidobacteria, Lactobacilli, Streptococci, Clostridia, Escherichia, Eubacteria, and Staphylococci. Those microorganisms were cultivated on media containing various sugars. The sugars were grouped into A, B, and C. Group A consisted of sugars extracted by water, 5%, 15%, 30%, and 40%, EtOH, respectively. Group B were galactooligosaccharide(GOS), fructooligosaccharide(FOS), isomaltooligosaccharide(IMO), and xylooligosaccharide( XOS). Group C were LOS, SOS, and LSOS. Bif. adolescentis, Bif. bifidum, Bif. infantis, Bif. longum, and Str. faecalis grew well on the media containing sugars of each A, B, and C group, while C. butyricurm, S. aureus, Eu. limosum, and E. coli did not. The results indicated that oligosaccharides of A, B, and C group were consumed effectively by Bifidobacterium spp. but not utilized by other intestinal microorganisms. Oligosaccharides of each A, B, and C group promoted selectively the growth of Bif. infantis and Bif. longum in the human intestinal microflora.

배기 다기관 형상 변경에 따른 배기계에서의 배기 압력 특성에 관한 연구

심국상,최민호,김세웅 금오공과대학교 산업기술개발연구원 2000 産業技術開發硏究 Vol.16 No.-

Exhaust pressure characteristics was described by change of exhaust manifold configurations in the exhaust system. Exhaust manifolds for analysis of exhaust pressure characteristics in this experiments were made and were single, double and conventional type of manifold. The pressure characteristics in the exhaust system were compared and analyzed according to exhaust manifold configurations, measuring positions, engine revolutions and loads. The results show that the peak pressure in exhaust system was decreased as the number of accessories in the exhaust manifold increased and the measuring position of sensor estranged from exhaust valve. And the accumulation of exhaust gas occurred in exhaust manifold was decreased by formulation of pulsating pressure wave than formulation of high pressure wave.

지리정보체계(GIS)와 계층분석과정(AHP)을 이용한 토지자원평가에 관한 연구

황국웅 한국지리정보학회 2003 한국지리정보학회지 Vol.6 No.4

다수의 지표요소에 의한 적지분석 또는 토지자원평가를 위하여 지리정보체계(GIS)를 사용한 도면중첩기법에 의하여 다양한 요인의 중요도를 고려하는 과정에 있어서 계층분석과정(AHP)을 적용하는 방법상의 절차에 대하여 두 가지 방법이 있음을 제시하고, 이들 방법에 따라 결과가 다르게 나타난다는 것을 전제로 하여 이 두 가지의 적용방법으로 연구대상지에 사례 적용하고 그 결과를 비교하였다. 봉화군을 연구대상지로 하여 ‘환경친화적 자원평가 지표체계’의 지표 요소별 중요도를 적용하는 과정에 대하여 각 지표별로 계산된 종합 중요도를 한번만 적용하는 방법(제1방법)과 단계별로 중요도 적용과 표준화 작업을 반복하는 방법(제2방법)을 적용하여 비교한 결과 그 결과가 다르게 나타난다는 것을 확인하였으며, 제2방법이 보다 합리적인 방법으로 제안하였다. In this study, for the application of land resource evaluation using GIS map overlay method. I have considered about the process that can draw out right results from the problems involving multiple hierarchical indicators and weights. That assumption of this research is that there are two processes in the application of analytic hierarchy process(AHP) and the different results will appear. The two processes are as follows; (1) calculate directly the comprehensive weights to the indicators and overlay the layers(Method Ⅰ) and (2) repeat the process of map overlay and standardization(Method Ⅱ). The two precesses are applied on the study site based on the envirosystem in Bong-Hwa, and then some differences were found in the results and it was suggested that the Method Ⅱ is more resonable.