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      • 변위속도에 따른 암석의 직간접 인장강도에 관한 연구

        김승곤 전북대학교 공업기술연구소 1994 工學硏究 Vol.25 No.-

        The result of eirect and indirect tensile strength experiment applide to gypsum and lime stone by changing the shpae at the displacement rate of 0.05cm/min, and 0.5cm/min is as follows; Supposing that the displacement rate were slow, the tensile strength of rock would be low and if it were fast, it would tend to be high. The tensile strength value, the experimental part in the shape of column, which is less influenced by the phenomena of a stress concentration is higher then that of notch which is influenced a lot by them. And the tensile strength, the experimental part in the shape of slender has a middle value between column and notch and the direct tensile strength value is similar to indirect tensile strength value. In the case of using the tensile strength value of rock when we make a blasting plan, if we use the tensile strength value found by direct tensile strength load which was at high speed to the experimental part in the shape of column, the plans with little probabilities of failure will be able to be made.

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        광주광역시 지역 생협의 로컬푸드 활용구조

        김승곤,김화환,안영진 국토지리학회 2014 국토지리학회지 Vol.48 No.2

        This paper aims to examine the current status of local food facilitation in Gwangju co-ops’ operations. Hansalim Gwangju co-op’s sales figures, supplier distribution, and logistics data were analyzed to see how much share the local food related operations are taking in the local co-op business. Findings are as follows. Most of co-op produces and commodities are supplied through a centralized logistics system run by the national-level Hansalim association, and sales of local food supplied by local Chonnam producers’ union were only about 10% of the total. Local food sales are mostly from fruit and vegetable, which is also irregular because those amount supplied and sold locally are from remaining stock of produces local farms deliver to the central co-op association. Transportation cost and low demand for local food are turned out to be major obstacles to increase the local food facilitation in local co-op businesses. 본 연구는 먹을거리 안전성 문제 및 도농 간 협력과 관련하여 최근 주목받고 있는 로컬푸드의 유통 실태와 구조를 파악하기 위해 광주광역시 한살림 광주생협의 로컬푸드 활용 현황을 살펴보았다. 생협의 매출자료, 생산자 분포현황, 물류 체계 등을 분석하고, 지역 생협 운영 책임자와 인터뷰를 실시하여 다음과 같은 결과를 도출하였다. 인터넷 직배송과 지역 직매장 판매방식을 병행하며 성장한 한살림 광주생협은 한살림 전남권역 생산자연합회를 통해 친환경 농산물을 공급받고 있으며, 중앙집중형 물류체계인 한살림 전국 배송물류체계를 통한 농산물 유통이 대부분을 차지하지만, 비정기적으로 로컬푸드 지역물류를 시행하고 있다. 지역물류의 경우 로컬푸드 부문은 전체 매출액의 약 10%를 차지하는데, 물품은 야채와 과실 위주로 제한적이며 관심도에 비해 지역 생협에서 로컬푸드 유통비중은 매우 낮은 실정이다. 현재의 생협 유통체계 하에서 지역물류의 경우는 생산자가 물류비를 부담해야하기 때문에 생산단가가 낮은 농산품은 대부분 중앙물류를 통해 출하되며, 남은 수량 또는 생산자의 임의 수량, 대규모 계약재배에 의한 수량 등만이 지역물류 방식으로 공급되고 있다. 또한 지역의 소비량이 제한적이기 때문에 일일채소와 같은 매일 공급물품에 대해서도 지역물류보다는 한살림 연합에서 운송비를 부담하는 중앙물류를 이용할 수밖에 없는 실정인 것으로 나타났다.

      • 여가활동 유형과 여가만족 및 생활만족의 관계

        김승곤,양명환 濟州大學敎 體育科學硏究所 1995 체육과학연구 Vol.1 No.-

        The purpose of this study was to determine the relationship of leisure activity types, leisure satisfaction and life satisfaction among college students. Specifically, two purposes were established for this study. The first purpose was to examine the effects of gender, age and types of leisure activity on leisure satisfaction and life satisfaction. The second purpose was to examine a casual relationship among types of leisure activity, leisure satisfaction, and life satisfaction. The subjects in this study were 115 male and 109 female college students. A purposive sampling method was used to select subjects who participated in three leisure activities including sport & exercise program(n=70,31.3%), hobby & creative activity(n=68, 30.4%),and amusement activity(n=86, 38.4%). Data were collected from all subjects during the fall of 1995. The Leisure Satisfaction Scale(Ragheb & Beard, 1980)was used to provide a measure of the extent to which individuals perceive that certain needs are met or satisfied through leisure activities. Life satisfaction was assessed by using a semantic differential technique. A 5 point Likert response scale was adopted for the instruments. One-way MANOVA, ANOVA and multiple regression analyses were used for research problems testing. MANOVAs indicated that gender, age, and leisure activity type had a significant effects on leisure satisfaction. Posttesting showed that male group perceived significantly higher in leisure satisfaction(psychological, educational, social, relaxational physio1ogical)than female group. The higher the age, the greater the leisure satisfaction(psychologica1, educational, social, relaxational physiological), and sport activity group perceived more leisure satisfaction (psychological, educational, social, relaxational, physiological, physical environment)than did the hobby & creative activity group and amusement group. ANOVA indicated that gender, age, leisure activity types had a significantly effects on life satisfaction. The male group perceived significantly higher in life satisfaction than female group. Scheffe multipe comparison indiacted that the higher the age, the greater the life satisfaction, and sport activity group perceived more life satisfaction than did the hobby & creative activity group and amusement group. Also multiple regression analysis and path analysis revealed that life satisfaction could be the best predicted from leisure satisfaction and could be affected through the sport activity indirectly. The findings provide significant casual relationships among leisure activity type, leisure satisfaction and life satisfaction in college students.

      • 태권도 뒤차기 동작의 운동학 및 동작 유사성에 관한 연구

        김승곤,오선홍 濟州大學敎 體育科學硏究所 1996 체육과학연구 Vol.2 No.-

        To attempt understanding of similarity of Diechagi movement in TaeKwonDo's movement with Cheju-do's representive athletes(N=5), the present study undertaken to investigate several factor influencing to similarity & accuracy when repeating it. The analysis method adapted the angle-angle diagram encoded chain in function of time. The conclusions obtained were as follows: 1. The difference of the elapsed time during Diechagi movement according to signal or non-signal didn't show significance statistically and increasing regression trend of mean cumulated elapsed time Y=O.l2X + 0.06, R^2=0.7973 in case of signal and Y=O.O83X + 0.155, R^2=0.743 in case of non-signal. 2. The first , vertical angular displacement of trunk during response- impact showed rather high increasing trend in signal than non-signal. Y=14.75X + 80.25. R^2=0.9648 in signal and Y=l7.504X + 66.814. R^2= 0.9696 in non-signal. and second, vertical & horizontal displacement of COG by each phase didn't show statistically significant difference by signal or non-signal.. each showed mean 9.64^+_4.10cm in vertical and mean 32.01±5.60cm in horizontal displacement in signal, and showed mean 10.35±3.51cm in vertical. mean 43.06±8.14cm in horizontal displacement in kinematic variables. 3. The similarity coefficient by each trial of chagi movement didn't show irregular pattern and as a characteristics. proximal endpoint in degree of similarity showed higher than distal endpoint of segments, and showed total mean 56.25% similarity this study's subjects in each 53.22% of KTH. 60.75% of SEC. 78.02% of KHJ, 43.19% of JMJ

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