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장성동,김영준 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1
The purpose of this study was to investigate the effects of 10km short-distance marathon on bone metabolism makers in adult male. The subjects consisted of 7 healthy adults male in amateur 10㎞ marathoner. The subjects understand purpose of this study according to the relation between a long distance race and bone metabolism and healthy people with no experience of marathon course. The experiments are divided into two part, ppe and post of 10㎞ short-distance marathon. Analytical items were calcium, phosphorus, paratyroid hormone, osteocalcin, calcitonin, alkaline phosphatase Urine : calcium, phosphorus, and deoxypyridinolin. The conclusions obtained from this study were as follows: In the matter of change of bone metabolism makers, there is significant change post training in paratyroid hormone and alkaline phosphatase, but there is no significant difference while he significant difference is shown in the osteocalcin, calcitorine and deoxypyridinoline.
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장성동,이은희,홍명엽,문성진,김주혁,이윤관,김영준 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.1
This study is purposed to analyse the effects of long-term & one-time 10km running exercise from bone metabolic marker change on bone metabolism. 7 male members(18.6±1.08) from a marathon club were subjected to the study. They were allowed to do long-term 10 km running training once a week for 6 months. And bone metabolism mark was determined according to the respective times : before/after 6 months training, before/after 10 km race, one day after the race, 3 days after the race. The examination items of bone metabolism mark were serum calcium, phosphorus, paratyroid hormone, osteocalcin, calcitonin, alkaline phosphatase in blood and calcium, phosphorus, deoxypyridinolin in urine. The results of study were as follows; 1) There was no change in deoxypyridinolin and alkaline phosphatase but there was significant change in calcitonin, paratyroid hormone and osteocalcin(p<.01). 2) There was no change of Calcium in serum and urine but there was significant change of phosphorus in blood(p<.01). To make a conclusion, it is determined that long-term 10 km running at low intensity and low frequency tends to restrict bone metabolism circulation, but exercise at a little high level activates bone metabolism into building up bones and absorbing bones and finally shows up high bone metabolism circulation, which is inferred to have an effective influence on bone health. It is considered there is a possibility that different exercise intensity, even same kind of exercise, influences on bone metabolism sdifferently.
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MOSFET을 이용한 전동기 구동을 위한 저가격형 전류검출법
장성동,정재호,박종규,이균정,신휘범 전력전자학회 2003 전력전자학회 논문지 Vol.8 No.1
A low-cost current-sensing scheme for the motor drives with MOSFET is described. Many motor drives usually employ the common current sensors to measure current for the purpose of control or protection. These current sensors, however, significantly burden the power circuit with the size and cost. The proposed current-sensing scheme utilizes information concerning MOSFET's On-voltage and On-resistance. An analogue circuit detecting On-voltage can overcome the above disadvantages because the circuit is small and is made at a low cost, and the fuzzy inference for On-resistance is also simply designed based on MOSFET's characteristics. The validity of this scheme will be experimentally verified by adopting the current control of a battery car. 전동기 구동에서 전류제어와 보호를 위해 전류 센서를 사용한다. 그러나 이런 전류 센서들은 크기와 비용측면에서 단점을 가지고 있다. 제안하는 전류 검출법은 MOSFET의 도통전압과 도통저항을 이용한다. 도통전압을 검출하는 아날로그 회로는 부피가 작고 저가로 제작 가능하므로 제시한 단점을 해결하고, 도통저항을 계산하기 위한 퍼지 추론은 MOSFET의 특성 그래프를 기초로 간단하게 설계된다. 제안한 전류 검출법으로 제작된 전류 검출기를 이용하여 배터리차의 전류 제어 실험을 통해 제안한 전류 검출법의 타당성을 검증한다.
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종교성이 장애대학생의 장애수용 및 진로결정에 미치는 영향
장성동,나운환,이임규 한국직업재활학회 2011 職業再活硏究 Vol.21 No.2
The purpose of this study is to look into effects of religiosity on disability acceptance and career decision making of college students with disabilities. This study was conducted targeting 114 college students with disabilities who are in school or off school from 19 colleges. Data collected from the survey was analysed using SPSS 17.0. The methods of analysis are frequency analysis, correlation analysis, t-test and ANOVA. Followings are results of the research in summary. First of all, correlation analysis was performed in order to know the influence of religiosity on disability acceptance and career decision making of college students with disabilities. The outcome turned out to be not statistically significant in terms of having an effect on disability acceptance and career decision making of college students with disabilities. Secondly, there is a significantly different level of religiosity depending on age, type of disability, disability grade, type of religion, and entering religion. On the basis of the results of this study, several recommendations have been suggested in a bid to offer vocational rehabilitation services to college students with disabilities in view of disability acceptance, career decision making and religiosity. First of all, there is a need for in-depth study of factors which influence disability acceptance and career decision making of college students with disabilities. Secondly, there is a need for development of career decision making service program referring to the fact that there is a higher level of career decision making in college students with disabilities who have been experiencing a religion before their schooling than students who became believers after their school admission Thirdly, the religious criteria used in this research are not designed for Korean college students with disabilities. There is a need for development of Korean type religious criteria. 본 연구는 종교성이 장애대학생의 장애수용 및 진로결정에 미치는 영향을 알아보는데 그 목적이 있다. 19개 대학교에 재학 중이거나 휴학 중인 장애대학생 114명을 대상으로 설문조사를 실시하였으며, 수집된 설문지의 데이터를 SPSS 17.0 버전을 사용하여 분석하였다. 사용된 분석 기법은 빈도분석, 상관분석, t-test, ANOVA 이다. 연구 결과를 요약하면 다음과 같다. 첫째, 종교성이 장애대학생의 장애수용과 진로결정에 미치는 영향을 알아보기 위하여 상관분석을 실시한 결과 유의한 영향이 없는 것으로 밝혀졌다. 둘째, 연령, 장애유형, 장애 등급, 종교 유형, 종교입문시기에 따라 종교성이 유의한 차이가 있는 것으로 밝혀졌다. 이상의 연구결과를 바탕으로 종교성이 장애수용이나 진로결정과의 관계를 고려한 몇 가지 제언을 하고자 한다. 첫째, 장애대학생의 장애수용 및 진로결정에 영향 주는 요소에 대한 심층연구가 필요하다. 둘째, 초등학교 이전에 종교를 가지게 된 장애대학생이 초등학교 이후에 종교를 가진 장애대학생보다 진로결정이 높은 점을 활용한 진로결정서비스를 개발해야 한다. 셋째, 종교성 척도가 한국의 장애대학생을 위하여 만들어진 척도가 아니었다는 점을 고려하여 장애대학생의 한국적 종교성을 고려한 종교성 척도 개발이 이루어져야 한다.
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