육상 200m 경기의 곡선주로에서 직선주로 진입 시 운동학적 특성분석

오세진 한국운동역학회 2002 한국운동역학회지 Vol.12 No.2

본 연구는 200m 경기의 곡선주로에서 직선주로 진입 시 나타나는 운동학적 특성을 파악하기 위해 실시하였다. 이를 위해 단거리 육상선수 4명을 대상으로 실시하였으며 곡선주로에서 직선주로로 연결되는 구간 10m를 설정하여 비디오 카메라로 촬영하였다. 공간의 좌표를 이미알고 있는 통제점 틀을 사용하여 분석구간을 모두 포함할수있도록 설치하였으며 대상자 별로 5번씩 실시하여 이중 가장 좋은 기록을 보인 동작을 실제 분석하였다. 10m 구간에서 대상자들은 평균 4.5±0.41번의 보폭을 보이는 것으로 나타났으며, 소요시간은 1.42±0.04sec.를 보였다. 평균보폭의 신장비는 1.25±0.20%를 보였으며, 평균속도는 7.06±0.19m/s를 보였다. 곡선주로에서 직선주로로 연결되는 구간에서 인체중심변위는 곡선의 안쪽 코스를 따라 이동하고 있었으며 외측(오른쪽)에 위치하는 다리의 변위가 내측(왼쪽)에 위치하는 다리의 변위보다 크게 나타났다. 좌우측 손분절 속도에서 내측에 위치하는 왼손의 속도보다는 외측에 위치하는 오른손의 속도가 다소 빠르게 나타났는데, 곡선주로에서는 외측에 위치하는 팔의 속도를 크게하여 질주방향으로 나아가는 것으로 나타났다. 어깨관절각도는 상완이 전측에 위치할 때 보다는 후측에 위치할 때가 보다 큰 각도를 보이고 있었으며 몸통측면각도는 곡선주로의 외측에 위치하는 오른발이 이지할 때 보다는 내측에 위치하는 왼발이 이지할 때 더 작은 값을 보이고 있었으며 직선주로에 근접할수록 몸통 측면각도가 작아지는 것으로 나타났다. 몸통회전각은 외측에 위치하는 오른발이 지지할 때 몸통을 전방으로 회전시켜 나아가는 것으로 나타났다. This study sought to identify the kinematic characteristics at entrance to the straight course from the curvilinear course in t he 200m-track game. For this purpose, this study was conducted for 4 sprinters by setting the 10m-section combined from the curvilenear track to the straight course and shooting them with the camcorder. It was set up to include all the sections of analysis by using the framework of the control point knowing the coordinate of the space and actual analysis was conducted on the motion showing the best records by conducting it for each subject five times. As a result, the following conclusion was drawn: It was found that the subjects showed the average stride of 4.5±0.41 times at the 10-meter section and the required time of 1.42±0.04sec. They showed the ratio average stride to height of 1.25±0.20% and the average speed of 7.06±0.19m/s. The displacement in the center of gravity of the human body at the section combined from the curvilinear course to the straight course was moving along the inward course of the curvilinear course, and the displacement of the leg located at the outward direction(right) was found to be larger than that of the leg located at the inward direction(left). In the speed of the left and right hand segments, it was found that the speed of the right hand located in the outward direction was faster than that of the left hand located at the inward, and it was found that the subjects progressed in the curvilinear course. The subjects showed the larger angle of the shoulder joint when the upper arm was located in the forward direction than when the it was located in the backward direction. In the curvilinear course, they showed the lower value of the lateral angle of the trunk when the right foot located at the outward direction left the ground than when the left foot located at the inward direction left the ground. And it was found that the lateral angle of the trunk became lower with approaching the straight course.

대학교육에서의 TQM 적용에 관한 연구

吳世進 강남대학교 사회과학연구소 1999 사회과학논총 Vol.8 No.-

화학기상응축법으로 제조한 Fe-Co 나노입자의 구조 및 자기적 상태에 관한 뫼스바우어 분석

오세진,최철진,권순주,진상호,김병기 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.7

Nine nano-sized Fe-Co particle samples synthesized by Chemical Vapor Condensation(CVC) were analyzed using Mo¨ssbauer spectroscopy, XRD, BET and HRTEM. The synthesized nanoparticles consisted of metallic core and oxide shell structures, and their surfaces were covered with a-FeOOH, γ-FeOOH and Fe_(3)O_(4). The increase of cobalt content enhanced magnetic field. However, when the decomposition temperature and the oxygen content in the carrier gas (Ar) increased, the magnetic field of nanoparticles reduced with decreasing the average particle size. with increasing the vacuum pressure, the average particle size and the magnetic field increased.

품질요인이 경쟁전략과 경영활동성과에 미치는 영향

오세진 강남대학교 사회과학연구소 1996 사회과학논총 Vol.2 No.-

非營利組織의 經營戰略에 관한 연구 : 의료부문의 전략계획을 중심으로

吳世進 강남대학교 1998 (강남대학교)논문집 Vol.32 No.3

생산전략의 변화형태에 따른 생산활동 및 성과향상의 특징에 관한 연구

吳世進 강남대학교 사회과학연구소 1998 사회과학논총 Vol.6 No.-

생산전략의 발전과정에 관한 실증적 연구

吳世進 강남대학교 사회과학연구소 1997 사회과학논총 Vol.3 No.-

순무(Brassica rapa L.)의 農耕形質과 一代雜種 育成에 關한 硏究 : Brassica rapa L.

黃海鎭,吳世明,韓相政 대구효성가톨릭대학교 응용과학연구소 1994 응용과학연구논문집 Vol.3 No.-

우리나라에 地方種의 形態로 一部農家에서 栽培되고 있는 순무를 蒐集하여 實用性이 높은 優良系綜을 選拔하는 한편 一代雜種品種의 育成을 위한 資料를 얻고자 實驗하고 얻은 結果를 要約하면 다음과 같다. 1)京機道의 江華와 利川, 慶北의 義城과 泰化 그리고 大邱에서 蒐集한 5個 地方種을 對象으로 選拔을 繼 續하여 3年次에 各 地方種으로 부터 均等性과 實用性이 높으면서 地方種問 形質의 差異가 뚜렷한 1系統 씩을 選拔하였다. 2)選拔된 5個 地方種중 江華地方種은 葉數가 가장 적고 葉重이 比較的 가벼웠음에도 根重이 가장 무거워 서 T/R 率이 매우 낮았으며 義城地方種은 葉數가 比較的 많고 葉重도 多少 무거웠으나 根重이 가장 가벼 워서 T/R率은 매우 높았다. 그리고 이들 5個 地方種問에는 量的形質에 있어 顯著한 差異를 나타내었다. 3)肉質에 있어 江化地方種은 黃色으로 强하였으며 그 밖의 地方種들은 白色으로 中位를 나타내었다. 4)選拔한 5個 地方種들을 二面交雜한 F1에서 잎과 뿌리의 主要能力을 檢定하였던 바 雜種强勢는 調査한 7個 形質에서 모두 크게 나타났고 特히 根重, 根經 및 葉重에서 顯著하였다. 5)그리고 各 形質別로 본 一般組合能力(GCA)과 特定組合能力(SCA)은 모두 有意性이 認定되었으며 그 중에서도 GCA와 SCA는 義城地方種을, 根重의 GCA는 江華地方種을 그리고 根重의 SCA는 義城地方種 을 片親으로 한 一代雜種에서 높게 나타났다. The local varieties of turnip were collected from five districts in Korea and were selected the superior lines and the experiments were caried out to obtain data for breeding F_1 Hybrid. The results obtained are as follows : 1. Local varieties of turnip were collected from Kanghwa and Ichun in Kyunggi province, Uisung and Bonghwa in Kyungbuk province, and Taegu district. From each of five local varieties, one line was selected, respectively, which showed high homogeneity, superior practicality and significant difference in agronomic characters. 2. Kanghwa local variety showed very low T/R ratio because of the heaviest root weight and the least number of leaves with relatively light leaf weight, on the other hand, Uisung local variety showed very high T/R ratio because of the lightest root weight and relatively many number of leaves with somewhat heavy leaf weight. And it was appeared significant differences in quantitative charactes among these local varieties. 3. In flesh texture and color of root, kanghwa local variety showed weak hardness with light pink, Bonghwa local variety showed strong hardness with light wellow and other local varieties showed medium hardness with white, respectively. 4. The five local varieties and 20F_1 progenies were tested for the heterosis and the combining ability of leaf and root characters. Heterosis was remarkable in seven characters, especially in root weight, root diameter and leaf weight. 5. General combining ability(GCA) and specific combining ability (SCA) were significant in all characters. In the effect of GCA, Uisung local variety was high in the leaf weight, Kanghwa local variety was high in the root weigh. In the effect of SCA, both leaf weight and root weight were proved to be high in the F_1 combi-nations from Using local variety used as parent.

유연성 : 새로운 경쟁무기 New Move To Competition?

김기영,박준병,오세진 한국경영과학회 1990 經營 科學 Vol.7 No.2

Flexibility, in the context of manufacturing, refers to an ability to accommodate changes in market requirements in terms of product, process, and other services in a timely manner at a reasonable cost. The basic purpose of this paper is to analyze manufacturing strategies of leading Korean manufacturers in order to answer the following questions : How important are manufacturing flexibilities to Korean companies in restoring their once competitive cost-based strategies and adopting new variety-based strategies? How effectively are Korean companies competing with their foreign competitors, like the US and European companies in terms of manufacturing flexibilities? And in order to improve the flexibilities what kinds of manufacturing capabilities are considered as important key factors by Korean manufacturers and are their action programs effectively implemented to acquire these capabilities? Major findings of the analysis indicate that Korean companies are very eager to reorganize their high-volume, cost-based corporate strategies as low volume, variety-based strategies. However, Korean manufacturers are still much dependent on the large size high volume factories and/or 'focus factories'. And the action programs and technologies to improve manufacturing flexibilities have been actively implemented at a higher rate than those of their foreign counterparts.

Study of the Acoustical Properties as a Function of Back Cavity for Loudspeaker

Sei-Jin Oh,Han-Ryang Lee,Suk Wang Yoon,Jin-Soo Park 한국소음진동공학회 2003 한국소음진동공학회 국제학술대회논문집 Vol.2003 No.8