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Plyometric Training과 비타민 C 투여가 남고생의 체력, 혈중 젖산, 암모니아 및 젖산탈수소효소에 미치는 영향
장준원,김세종,이현미,서혜림,조현숙,고정림,염종우,예정복,백영호 釜山大學校 附設 體育科學硏究所 2003 體育科學硏究所 論文集 Vol.19 No.-
The purpose of this was to examine the effect of plyometric training and vitamin C ingestion on physical fitness and fatigue substance....
레슬링 選手의 경기능력과 體格 및 體力要因간의 상관관계
장준원 인하대학교 스포츠과학연구소 2000 論文集 Vol.12 No.-
This research measured 18 physique factors (body weight, standing height, sitting height, girth of head, girth of neck, girth of waist, girth of thigh, girth of the calf of the leg, girth of ankle, strethch of arms, length of hand, length of foot, girth of forearm and length of leg) and 15 physical fitness factors(trunk flexion, back strength, left-hand grip strength, right-hand grip strength, trunk extention, 30m speed, 100m speed, 400m speed, 800m speed, pull-up, standing board jump, sargent or vertical jump, side step test, burpee test and vertical jump reaction time) to show the co-relation among the factors of competition cpmpetence, physique and physical fitness. For competition competence, we used the one-year results of wrestlers from the first to the fifth of national matches. The numbers of wrestlers that were used was 28. To sum up the results of the research according to the statistic co-relation, the physique excellent freestyle wrestlers are tall sitting height, small grith of the calf of the leg, thick girth of neck, small girth of head, thick girth of wrist. And there were no physical fitness characteristics. Excellent Greco-roman wrestlers and this physical fitness characteristics are strong back strength, fast vertical jump reaction time.
산소플라즈마와 급속열처리에 의해 제조된 티타니아 박막의 휴믹산 제거
장준원,박재우,Jang, Jun-Won,Park, Jae-Woo 한국지하수토양환경학회 2007 지하수토양환경 Vol.12 No.3
본 연구에서는 산소플라즈마로 티타늄을 산화하고 급속열처리하여 티타니아 광촉매 박막을 제조하고 휴믹산 제거실험을 수행하였다. 플라즈마 화학기상증착장치에서의 산소플라즈마는 티타늄 표면을 산화시킴으로써 광촉매 피막을 생성하게 된다. 증착조건에서 RF power는 최대 500 W 이하에서 100 W, 150 W, 300 W, 처리시간은 5분, 10분에서 조절되었다. 박막의 특성은 XPS와 XRD로 측정하였다. 실험으로서 우리는 박막이 높은 성능을 나타내는 최적을 조건을 찾았다. 또한 제조된 박막의 경우 기존 Thermal spray Titania film에 비해 2배정도 우수하였고 분말만큼 광촉매 성능을 갖는다. Titanium was oxidized with oxygen plasma and calcinated with rapid thermal annealing for degradation of humic acid dissolved in water. Titania photocatalytic plate was produced by titanium surface oxidized with oxygen plasma by Plasma Enhanced Chemical Vapor Deposition (PECVD). RF-power and deposition condition is controlled under 100 W, 150 W, 300 W and 500 W. Treatment time was controlled by 5 min and 10 min. The film properties were evaluated by the X-ray Photoelectron Spectroscopy (XPS) and X-Ray Diffraction (XRD). From the experimental results, we found the optimal condition of titania film which exhibited good performance. Moreover photocatalytic capacity was about twice better than thermal spray titania film, and also as good as titania powder.
개선된 입력성형 기법을 이용한 XY스테이지의 고속 정밀 위치결정
장준원,박상원,홍성욱 한국공작기계학회 2007 한국공작기계학회 추계학술대회논문집 Vol.2007 No.-
This paper deals with precise positioning of high-speed XY stage by an improved input shaping. Input shaping is well known to be a very effective tool for suppressing the residual vibration of flexible structures. However, the ordinary input shaping cannot suppress the residual vibration at the target position effectively. The main reason is the time delay of the servo system. In order to compensate for the time-delay-caused-problem, this paper proposes an improved input shaper, The improved input shaper is proved effective through experiments.
장준원,황희용 강원대학교 정보통신연구소 2008 정보통신논문지 Vol.12 No.-
In this pafer, we proposed a wineglass slot-patch UWB antenna using approximately symmetry plane for prototype antenna of circular-slot UWB antenna. Using on field patterns, we show that the prototype circulat-slot UWB antenna operates on a series of multi-pole radiation based on TEn modes and the first resonant frequency by designed prototype antenna slot size. Ee designed and fabricated the wineglass slot-patch UWB antenna on FR4 substrate with t=1.524mm, εr=4.4 and tanδ=0.025, which not only has the half size of the original but also maintains UWB characteristics. The measured gain is reduced a little however radiation patterns are similar to that of the prototype antenna and maintain identical direction of max gain for all operation frequency.
장준원,최경,황희용 강원대학교 정보통신연구소 2007 정보통신논문지 Vol.11 No.-
In this paper, an ultra wideband(UWB) circular slot antenna fed by tapered microstrip line is presented. The designed antenna is composed of a tapered feed line, a circular slot and a circular patch. Important physical parameters concerned with the wideband characteristic are investigated and optimized. The operational bandwidth of the antenna is from 3.5 GHz to 13.8 GHz. The simulated and the measured data show good agreement each other.
Quantitative Comparison of the Photocatalytic Efficiency of TiO2 Nanotube Film and TiO2 Powder
장준원,박성직,박재우 한국지하수토양환경학회 2016 지하수토양환경 Vol.21 No.2
We compared the plausible reaction mechanism and quantitative efficiency of highly self-organized TiO2 nanotube (ntTiO2) film with TiO2 powder. Film was fabricated by electrochemical potentiostatic anodization of titanium thin film in an ethylene-glycol electrolyte solution containing 0.3 wt% NH4F and 2 vol% deionized water. Nanotubes with a pore size of 80-100 nm were formed by anodization at 60 V for 3 h. Humic acid (HA) was degraded through photocatalytic degradation using the ntTiO2 film. Pseudo first-order rate constants for 0.3 g of ntTiO2, 0.3 g TiO2 powder, and 1 g TiO2 powder were 0.081 min−1, 0.003 min−1, and 0.044 min−1, respectively. HA adsorption on the ntTiO2 film was minimal while adsorption on the TiO2 powder was about 20% based on thermogravimetric analysis. Approximately five-fold more normalized OH radicals were generated by the ntTiO2 film than the TiO2 powder. These quantitative findings explain why ntTiO2 film showed superior photocatalytic performance to TiO2 powder.