步速變化에 따른 미끄러짐의 생체역학적 연구

서국웅,윤양진,서국은,이중숙,김용재,이언석,이훈식 釜山大學校 附設 體育科學硏究所 1992 體育科學硏究所 論文集 Vol.8 No.-

The purpose of this study was to analyze walking steps to prevent unnecessary energy consuming and prevention of injury from sliding when someone was walking. The questionnaire, high speed video system, E.M.G. system, and force platform system were used to analyze sliding mechanism in biomechanical perspective. Several results were found as following: 1. According to questionnaire regarding sliding, 93.3% of participants have sliding experiences. People have sliding experiences by greasy floor(48.4%) and obstacle (22.5%). Sliding types were found from different kinds of shoes such as sneakers (48.8%) and boots (34.2%). The results were presented as following 44.6% of participants were fall down front direction and 40.3% of people fell down rear side. 2. According to the high speed video system analyzer, step sliding increased with increasing step speed from distance and acceleration speed experiment with 80 steps/min, 100 steps/min, 120 steps/min. Also, the most sliding were occurred with sneakers, boots, and bare feet as order. 3. According to E.M.G. test results, the vastus lateralis M., the vastus medialis m., and the tibialis anterior m. of electric action potential presented strongly when participants fell front, rear, and right side. The vastus lateralis m. and the tibialis anterior m. of electric action potential presented strongly when someone fell left side, but the vastus medialis m. and the gastrocnemius m. of electirc action potential presented as weaker. 4. According to the force platform test results, the most big change of floor antipower of x-axis presented when someone fell the left side. The most of big change of floor antipower of y-axis presented when someone fell down rear side. The most of big change of floor antipower of z-axis presented similarly when someone fell the front, rear, left, and right side.

眞空遮斷器 電源을 開閉하는 高壓電動機의 서지 解析

李殷雄,金宗謙 忠南大學校 産業技術硏究所 1991 산업기술연구논문집 Vol.6 No.2

In recent year, vacuum circuit breakers (VCB) have been widely used as the power supply breaker of high voltage motors, to enhance the efficiency and to make the maintenance of waterworks equipments easy. Poweful surge voltage, a repetitive phenomenon of reignition, occured when the VCB is switching between on and off, and is transmitted to the stator winding of motor through the cable. This surge voltage is repeated several times, though the action of the circuit breaker (CB) is not completed, and if the suge voltage is culmulated, the motor becomes burned by owing to breakdown of winding at the end. In this study, the surge voltage occuring at the opening and closing of the VCB was analyzed as the transient phenomenon by circuit parameters. By examining the variances of peak value, duration of wave-front, and duration of wave-tail under the variances of length and capacity of the cable, we could expect to protect the breakdown of winding with parallel connection of suitable capacitance in the motor.

공동주택의 성능개선 요구 및 실태에 관한 연구 : 단위 주호의 리모델링을 중심으로 Focused on Remodeling of the unit apartment

이은희,정무웅 대한건축학회 2003 대한건축학회논문집 Vol.19 No.9

The purpose of this study aims to present the basic data for the remodeling of apartments interior space. This study was conducted by the built questionnaire and interview. The findings of this study are as follows : 1) The level of the users' perception of the apartments remodeling was high and affirmative. 2) About 44.2% of residents have experienced the remodeling of their dwelling units. 3) In the floor plan, composition the expansion of the balcony and the change of the use of space were made. 4) Various needs of a dwelling house were reflected according to each lifestyle of family members condition. 5) Diversification and high-quality of interior finishing materials were presented. 6) The larger unit houses were remodelled much more than the smaller ones.

딜티아젬 함유 코아 펠렛으로부터 약물의 용출에 미치는 폴록사머 함량의 영향

이승우,감성훈,홍지웅,최기송,박은석,지상철 한국약제학회 2002 Journal of Pharmaceutical Investigation Vol.32 No.4

In order to evaluate the effect of poloxamer 407 content on the dissolution profiles of pellets, diltiazem HCl (DTL) core pellets were prepared with poloxamer 407 (50∼90% w/w, with lactose as filler) using an extruder and a spheronizer. Any possible interaction between the drug and excipients was evaluated using DSC, IR and TLC. Dissolution tests were performed using USP basket method. In addition, scanning electron micrograph was performed to examine the surface roughness and cross sections. The release of DTL from the core pellets was decreased with increasing poloxamer 407 content. Cracks appeared on the surface of the core pellets with increasing the poloxamer 407 content, which may play a role on the retardation of the release of DTL from core pellets. There was no any significant interaction between the drug and excipients employed to prepare the core pellets.

籠型誘導電動機의 磁氣的 振動 分布力

이은웅,이상호 忠南大學校 産業技術硏究所 1988 산업기술연구논문집 Vol.3 No.2

In induction motors, there exist various causes for noise production, among them, the noise generated by magnetic vibrating distribution forces has a dominant factors. In this paper, only the magnetic vibrating distribution forces owing to stator harmonics in squirrelcage induction motor were arranged analytically, excepting air-gap eccentricity and structural deformation. And then, the magnetic vibrating distribution forces were analyzed by virtue of the magnetic flux density found by the finite element method and the permeance of each rotor node calculated with it's formula.

만성 신부전증 환자의 중중 고혈당에 따른 의식 변화 결정에 대한 연구

위형중,이창범,박성광,강성귀,임천규,박은주,윤경택,한상웅,안유헌,김호중· 대한신장학회 2000 대한신장학회잡지 Vol.19 No.6

가족의 기능적 특성과 교우관계가 아동의 역량지각에 미치는 영향

이은정,김광웅 숙명여자대학교 아동연구소 2000 兒童硏究 Vol.14 No.2

The purpose of this study was to find out the relationship among family cohesion and adaptability, children´s friendship, and children´s self-concept. The subjects of this research were 783 children in the 5th and 6th grades of an elementary school. Various survey methods were used, such as questionnaires including FACES Ⅱ(Olson et all., 1994), two-step sociometric nomination measure, Friendship quality Questionnair(Bukowski, 1982). Data were analyzed by means of frequency, percentage, Pearsons´ correlation, two-way Anova, and multiple regression analysis. The major findings are as follows: First, family cohesion and adaptability influenced chileren´s perceived competences. Second. friendship quality variables were significantly coorelated with perceived competences. Thire, the interaction between the family measures and friendship quality measures was clarified. The family cohesion was more strongly associated with social competence and physical competence at lower levels of the friendship measure than higner levels.

당뇨신발용 혁의 개발에 관한 연구

이종석,이종철,김명웅,최순복,김영길,유은일 한국공업화학회 2003 응용화학 Vol.7 No.1

The whole process of manufacturing diabatic leather for upper and lining is investigated into raw skin, pelt wet bule, crust leather and finished leather It is tried to make the more functional upper leather and lining leather in the whole leather process by the use of developed recipr. The lower chrommed wet blue for upper and lining is developed through tanning process. The air-permeability of crust leather for upper and lining is incerased through miling The hygiene of finished leather for upper and lining is increased by the of antibacterial and deodorization agents. The upper leathe and lining leather through these have the more improved physical properies of the finished leather than those through other treatments.

공동주택 리모델링 프로세스에 관한 연구 : "H"아파트(58평형) 사례적용을 중심으로 Focused on interior space of large-sized(58py) "H"apartment

이은희,정무웅 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(계획계)

The study aims at systemizing the process for remodeling the interior space of unit apartment. Remodeling of outdated apartment of a large size(58 pyong) in Gaepo-dong, about 20 years since it had been built, was given as an example of this study. 1. It is necessary to make a distinction between 'wants' and 'needs'. 2. For users' choices of interior finishing materials, data and information that are diversified and visual a needed. 3. Through assessing an apartment after residing, proceeded by the program, the result should be put into the next project again.

直立葉型의 一般系와 統一系 水稻品種의 生育 및 收量性 比較

趙龍九,李殷雄 서울大學校 農科大學 1986 서울대농학연구지 Vol.11 No.1

Light interception efficiency, parameters during ripening period, yield response to fertilization and optimum leaf area index and leaf area duration for maximum grain yield were compared between high yielding variety, Nampung with long culm and erect leaves, and Japonica variety, Seonam with short culm and erect leaves under six fertilization levels and two planting densities. 1. Light extinction coefficient was estimated at 0.56 in Seonam and 0.58 in Nampung, showing no difference between the two varieties. 2. Relative growth rate, net assimilation rate and crop growth rate during 30 day after heading were greater in Nampung than in Seonam.] 3. Sink capacity determined before heading showed no difference between the two varieties, but the yield was higher in Nampung than in Seonam. This suggests that Seonam is inferior to Nampung in photosynthetic and translocating efficiency during ripening period. 4. The optimum fertilization level for maximum grain yield ranged 20 to 24㎏N/10a in Nampung and 16 to 19kgN/10a with planting densities. 5. The optimum LAIs for maximum grain yield showed the range of 7.6 to 8.3 in Seonam and of 8.6 to over 10.2 in Nampung with year. These were greater than those reported previously for Tongil and Japonica Varieties. 6. The optimum LADs for maximum grain yield were estimated to be in the range of 176 to 180 day in Seonam and 245 to over 238 day in Nampung with year.