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테니스 포핸드 스트로크 시 왼팔의 이용 유무가 스트로크의 정확성에 미치는 영향
우상연,최성범,김호묵 순천향대학교 기초과학연구소 2011 순천향자연과학연구 논문집 Vol.17 No.1
The purpose of this study is to analyze and compare accuracy and kinematic characteristics of forehand strokes upon using the left-hand and non the using left hand in tennis. Six unskilled collegiate players who complied primary tennis course participated in this study. Subjects were requested to hit 10 balls with 4 types each: first, it was two directions(down the line, cross), second, it was two velocities(slow ball, fast ball) and then it was type of using left hand. Variables such as accuracy, time, distance, angle and velocity variables were measured by USPTA method and video cameras. The results of this study are as follows: 1) accuracy of hitting balls was not different according to the type of using left hand. While there was an interaction between ball velocity and hitting direction. 2) impact positions of hitting ball were not different according to the type of using left hand. While impact positions were done near by target direction in cross direction then down the line direction. 3) shoulder rotation angle was not different according to the type of using left hand. While shoulder rotation angle was grater in down the line direction than cross direction. 4) the maximum velocity of racket head was faster in using left hand than non using left hand.
Ocular MALT Lymphoma : Report of Two Cases
윤영묵,장효찬,김동석,김상원,박미옥,박재복 대구효성가톨릭대학교 1998 연구논문집 Vol.57 No.2
Lymphoma arising in mucosa-associated lymphoid tissue(MALT) is extranodal marginal zone lymphoma displaying a proliferation of follicle marginal zone-type cells(centrocyte-like cells or monocytoid B-cells), often with surrounding reactive germinal centers and lympoepithelial lesions. This typically expresses pan-B-cell markers and monotypic immunoglobulin but not CD5 or CD10. Ocular MALT consists of the lacrimal gland, lcular soft tissue, orbit, conjunctiva and cornea. Lymphoma arising in thses sites is of very rare occurrence in up to 1.5% of all patients with non-Hodgkin's lymphoma. Herein we report two cases of ocular MALT lymphoma which was very rare in the dermatologic field. Case 1, 73-year-old man, developed the right upper conjunctival swelling measuring about 2.0×2.5cm for about 1 year. Histologically, the excised lesion showed follicular centers and infiltration of centrocyte-like cells of B-cell lineage in the stroma but no lymphoepithelial lesions, consistent with low-grade B-cell lymphoma. Case 2, a 66-year-old female, had a rapid course of about 1.2×1.0cm-sized, soft, wellow mass arising from lacrimal gland of the right upper eyelid for about 1 month. Hostologically, the lesion showed diffuse patterend features admixed with centrocyte-like cells and large cells such as centroblast, compatible with high-grade lymphoma. Case 2 received combined chemotherapy of m-BACOD, with a somewhat improvement.
퍼지 페트리네트를 이용한 전력계통 보호시스템의 모델링과 고장진단
최진묵,노명균,홍상은 순천향대학교 부설 산업기술연구소 1999 순천향 산업기술연구소논문집 Vol.5 No.2
As the complexity of power systems increases, especially in the case of multiple faults or ncorrect operation of protective devices, fault diagnosis requires new and systematic methods to the reasoning process, which improves both its accuracy and its efficiency. Therefore this paper proposes a method of the modeling of protection systems and fault diagnosis in power systems using Fuzzy Petri Nets (FPN). The proposed method can reduce processing time and increase accuracy when compared with the traditional methods. And also this method can cover online processing of real-time data from SCADA (Supervisory Control and Data Acquisition).
R.C. Slab System의 信賴性解析 및 設計規準
申鉉默,李相哲 成均館大學校 科學技術硏究所 1983 論文集 Vol.34 No.2
This study proposes a reliability based design criteria for the reinforced concrete slab system. Resistence and load factors corresponding to the target reliability index (β_0 = = 3.0) which is considered to be appropriate level of reliability are calculated by using the proposed methods. Because of the large variation in load-effect uncertainties, the magnitudes of the factors varied considerably depending on the design section being considered. The same set of load factors associated with different resistence factors for each different design bay of a slab system are adopted as a reliability based design criteria for the purpose of practical. design applications.
김상균,박세명,최흥국,최항묵 인제대학교 1998 仁濟論叢 Vol.14 No.1
Extracting a license plate is an essential stage in the automatic car identification. Because car images are usually degraded and processes for the images are a computationally intensive job, it is difficult to extract a license plate correctly from the images. In this paper, we propose an extraction method of a license plate region based on color image segmentation. To segment the color image, we use a distributed genetic algorithm and transformed Hue-Saturation-Intensity color space as a measure of distance. The method offers robustness in dealing with deformation of car images and inherent parallelism to improve processing time. A test with car images on the roads shows an extraction rate of 93.8%. This result suggests that the proposed method works well with real-world situations, and is pertinent to be put into practical use.
김상묵,강제상,김종래 한국정책학회 2003 韓國政策學會報 Vol.12 No.2
우리 나라의 경우 계약직공무원제도는 공직사회의 전문성을 제고하고 공직 개방화에 따른 정부인적자원의 효율적 관리차원에서 1998년 도입되었다. 그 후 책임운영기관제도와 개방형 직위제도가 새로이 도입되었고, 행정서비스수요에 탄력적으로 대응하기 위하여 시간제공무원제도와 외국의 우수전문인력을 공직에 충원하기 위한 외국인공무원채용제도 등을 도입하는 등 계약직 공무원제도는 그 분야와 영역이 점차 확대되고 있는 실정이다. 이 연구의 목적은, 계약직공무원제도의 운영실태를 조사·분석하고, 이를 바탕으로 도입취지의 당위성을 확인하고 향후 인사관리정책의 방향성을 탐색하고, 계약직공무원제도의 개선을 위한 실현 가능한 정책대안을 모색하고자 한다. 특히 계약직공무원의 임용과 성과관리 방안 등 인력활용시스템의 개선에 대하여 중점적으로 고찰해보고자 한다. 먼저 면담조사를 통해 계약직공무원제도 운영실태를 파악한 후 이를 토대로 설문조사를 실시하였다. 전체 계약직 공무원 전원과, 비교집단으로 각 계약직 공무원과 유사한 위치에서 비슷한 업무를 수행하는 동일한 수의 일반직 등 비계약직 공무원을 선정하여 설문조사를 실시하였다. 이를 통해 계약직공무원제도의 운영실태를 파악한 후, 그 결과를 바탕으로 제도적·운영상 개선방안을 모색하였다. Given that the contingent employee is likely to be a familiar presence in the public service workplace of the future in Korea, this study explores the realities of contingent civil service system and discusses its institutional development. It reviews the characteristics and present situations of the contingent civil service system, analyzes its problems, and suggests the alternatives for improvement. Drawing upon survey evidence from two groups, 383 non-contingent public employees and 408 contingent public employees in the central government of Korea, our study shows that there is no difference between contingent and non-contingent public employees in the main reasons why they have entered to the government and in the factors which they have considered as more important, and that the major problems of current contingent civil service system are inappropriate performance evaluation and insufficient linkage between performance and reward, while most contingent and non-contingent public employees are agreed with the purposes of contingent civil service system. Such findings are discussed for the improvement of contingent civil service system in Korea.