보행시 하지체질의 내적일 분석

홍성표,이순호,김희수 忠南大學校體育科學硏究所 1995 體育科學硏究誌 Vol.13 No.1

This study is to represent basic data of biomechanical work of human body which has been data measured precisely and is to see on pathology and abnormal gaits patterns. And 5, 6th grade boys in Taejon city were attended in this experiment. Each student wore 8 landmarks on their lower leg joints and walked for 4 Km/h, 5 Km/h, and 6 Km/h on the treadmill Mechanical energy of lower extremity segment by lower joint (thigh and shank) movement were measured in stance phase and swing phase which were assessed internal work and energy of segment The conclusions were as following; 1. Increasing gait velocity cause toe off in early stage and swing of lower extremity happen early and quickly with angle of shank increasing in swing phase. 2. Children gait velocity grow rapidly above 5km/h, internal work of thigh mechanical energy showed value of work clearly and large. and internal work change represent greater in shank than in thigh 3. The stance period of gait is the period off set by two operated cocontracting muscles, and the later the speed of gait is, the lower the effect of the net torque.

건물 산란계수를 이용한 비가시거리 영역에서의 전파환경

홍성욱,강부식,김흥수 濟州大學校 産業技術硏究所 1997 산업기술연구소논문집 Vol.8 No.1

In this paper, the scattered electric fields is computed to predict the shielding zone by analysing the effect of the reflected azimuth anlge at the building, and considering the path differences at observation point between the rays from origin and any point in the building. The scattering coefficients. which are applicable to the prediction of shielding zone. are computed and compared with measured one. We found that the scattering power become weak over 10 degree of the azimuth angle at which the scattering coefficient is lower than 40 dB. From this, the shielding zone can be estimated.

치은섬유모세포 및 치주인대세포에 의한 교원질 수축에 관한 연구

홍영안,김현수,주성숙,신제원 慶熙大學校 齒科大學 1995 慶熙齒大論文集 Vol.17 No.2

The purpose of this in vitro study was to evaluate contraction of the human gingival and periodontal ligament fibroblast in the collagen matrix. The cell cultures were prepared using human gingiva and tooth. The collagen gels were observed daily with an inverted microscope and their area was determined by measuring the diameters of the collagen gel. The configurations of human gingival and periodontal ligament fibroblasts were done by SEM observation. The results as follows; 1. The contraction was found to be proportional to seeding cell without seeding cells, the contraction was not occured. 2. Periodontal ligament fibroblast was shown more fast contraction than gingival fibroblast. 3. The collagen matrix was translucent initially, but with fully contraction, the structure become opaque. 4. The collagen matrix with fibroblast were aggregated to form bundles and reorganized collagen fiber.

대학생들의 氣에 대한 의식 조사 연구

홍성균,이성수,안규동,이병국 순천향대학교 산업의학연구소 2001 순천향산업의학 Vol.7 No.1

Ki is emerging and getting popular as a new alternative therapy in new millenium. The purpose of this study was to investigate the understanding and experience of the Ki therapy for college students. 320(Male=138, Female=182) students were participate in this study. Study subjects were answered with prepared 8 questions for their personal opinion and experience about Ki therapy. Study variables about personal information such as sex, blood type, religion, health status, personality, parent's religion, parent' occupation and parent educational level were also collected. The results of this study were as follows; 1 Among all study students (n=320), 89% of students answered positively in the existence of Ki, whereas only 11% answered negatively. 2. Among all study students (n=320), 13% (n=41) of students had a chance to have a Ki therapy and among 41 students 93% of them had experienced real Ki in any kind of form. 3. Among 41 Ki experienced students, 32% of students felt a feeling of floating and flying, 25% of students felt a feeling of pulling from the back and 21% of students felt a feeling of warming and comfortable, 10% of students felt refreshment and 5% of students felt a feeling of dizziness, whereas only 7% of students did not feel anything from Ki therapy. 4. While 53% of students among 41 Ki experienced students experienced their Ki in Ki training center, 31% and 6% of students experienced in college or university and other place, respectively. 5. Among all study students, 89% of students thought that Ki therapy was useful and wanted to have Ki therapy in case of medical attention, whereas only 11 % of students did not want Ki therapy. 6. Among study students with positive thinking about Ki therapy, 24% and 23% of students thought Ki therapy useful for (endocrine and skin diseases) and chronic adult diseases such as hypertension, cardiac disease, diabetes and obesity, respectively, whereas 21% and 18% of study students thought Ki therapy useful for neuropsychiatric disease and digestive diseases, respectively. 7. Regarding to the reason of attraction of Ki therapy compared with other treatment methods, 51% of students answered that Ki therapy gave comfortable and easiness to mind and 42% of students answered that it did not need any kind of injection or medicine.

體育科 Mat運動의 能力別 學習 適用效果에 關한 硏究

洪盛杓,陣潤洙 忠南大學校體育科學硏究所 1984 體育科學硏究誌 Vol.2 No.1

This study was conducted to see the application effect of learning by ability in Mat exercise. 367 Male middle school students who were second grade were served as subjects. They were divided into control group and experimental group. Control group was hetrogeneous group and experimental group was organized group by ability. After 8 hours' learning of Mat exercise, their motor performance were compared. The following conclusions were obtained; 1. In teaching of Mat exercise in Male middle school, group-organization by ability was more effective than hetrogeneous group-organization. 2. In stepped and systematic teaching materials such as Mat exorcise , effective motor skill improvement is possible through leaching method of group - organization by ability. 3. Especially in the learning of difficult motor events and motor events which need repeated practice and which lack of pre-learning, application effect of learning by ability is big.

주파수 응답 함수를 이용한 평면 밀링에서의 채터 예측

홍성욱,박중윤,김현수,박재현,박창용 金烏工科大學校 産業技術開發硏究院 1999 産業技術開發硏究 Vol.15 No.-

The present paper investigates the chatter stability of a milling spindle-workpiece system in face milling process. To this end, a new method using frequendy response function is adopted for predicting the chatter vibration. A compliant workpiece is used to make the spindle-workpiece system easily exposed to chatter vibration. The entire experimental procedure, including measurement of frequency response function and cutting coefficients, is demonstrated. The experimental result shows that the chatter stability prediction method using frequendy response function is of great use in face milling process.

제주도 위성사진에 의한 지형 분포에 따른 반사계수 비교

홍성욱,김흥수 濟州大學校 工科大學 産業技術硏究所 1997 尖端技術硏究所論文集 Vol.8 No.2

The goal of this paper is to predict the range of the reflection coefficient on the area which is divided by the satellite photograph in Cheju. We select the sample points on the smooth surface and measure the field strength. The range of the reflection coefficients on the sample area are obtained by the regression analysis as function of the coefficient for incidence angle and the measured field strength. The field strength in the divided area are obtained using this coefficient. The difference between the measured results and theoretical predictions is only within 5dB.

자원 제약 조건이 공기-비용 교환 문제에 미치는 영향 분석

홍성준,류한국,유정호,이현수 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1

It has been generally accepted that cost and time are in reverse proportion. But, due to the resource constraints such as resource capacity, resource availability, resource continuity and resource level, time and cost could have unfixed relation and time-cost trade-off curves could take various forms. This study proposes the labor-related constraints affecting the time-cost trade-off problems and analyzes the effects.

Niwaella multifasciata Wakiya et Mori (Cobitidae)의 附屬骨格

成娟濟,楊洪準,南明模,蔡秉洙 경북대학교 과학교육연구소 1988 科學敎育硏究誌 Vol.12 No.-

The appendicular skeleton of Niwaella multifasciata was described as a part of systematic study of Cobitidae. In the pectoral girdle, posttemporal was sigmoid form, and upper and lower arms of cleithrum had an angle of 105°, the length of lower arm was one-third of upper one. The scapular had a foramen in the center, and actionst was consisted in three pairs of bone. Postcleithrum was absent. Pelvic girdle was consisted in a pair of innominatium and three pairs of basiost. In the pterygiophore, dorsal fin was supported by three interneural spine and thirteen basiost, and interneural spine was located between the neura니 spin of the 27-31th vertebrae. Anal fin was supported by five interhemal spine and nine basiost, interneural spine was located between the hemal spine of the 42-45th vertebras.

무선데이터 손실을 최소화하기 위한 실내 무선환경 분석

홍성욱,김흥수 濟州大學校 情報通信硏究所 1999 情報通信硏究所論文集 Vol.2 No.-

In order to minimize the loss of wireless data, an indoor radio environment is analyzed. As received signal is composed of multipath wave being caused by various media. the factors of signal fluctuation are studied by using the electrical characteristics of media. An equation which is a function of the electrical characteristics is derived by using the polarizations of antenna and the reflection theory. We take the strength of waves in corridor and between the two floors. and compare the measured data with the theoretical data.