상피성 임파부종 환자의 치료 : 증례보고 Case Report

김성중 한국전문물리치료학회 1999 한국전문물리치료학회지 Vol.6 No.3

솔리드 모델러 기반의 스태빌라이져 링크 자동 3차원 모델링 시스템

정승용,강재관 慶南大學校 附設 工業技術硏究所 2003 硏究論文集 Vol.21 No.1

자동차의 잦은 설계 변경에 따라 자동차 부품은 지속적으로 새로운 부품이 개발된다. 본 논문에서는 상용 솔리드 모델러의 파라메트릭 설계 기능과 API기능을 이용하여 자동차 현가 장치에 사용되는 부품인 스태빌라이져 링크 부품의 설계 자동화 시스템 개발 사례를 소개한다. 스태빌라이져 링크의 종류 및 구성 부품 분석과 파라메트릭 설계를 이용한 단품 모델링, API를 이용한 조립품 자동 설계, 그리고 다양한 종류의 2차원 도면 자동 생성 방법 등이 기술된다. In this paper, an automated design system for stabilizer link parts based on commercial 3-D solid modeler is developed. Parametric modeling and API (Application Programming Interface) functions provided by commercial 3-D solid modeler are engaged to develope the system which consists of 3-D part modeling, automatic assembling of the parts, and automated generation of 2-D drafting. Commercial solid modeler. UG and Visual C++ are used to implement the automated systems.

R134a 냉동장치의 과열도 변화에 의한 성능 특성 연구

김성배,하옥남 朝鮮大學校 機械技術硏究所 2007 機械技術硏究 Vol.10 No.1

Since the use of CFCs and HCFCs refrigerants are to be restricted due to the depletion of ozone layer, this experiment applies the R134a gas to study the performance characteristic from the superheat control for improving the energy efficiency. The experiments are carried out for the condensing pressure of refrigeration system from 1.5MPa to 1.6MPa by 0.05 MPa and for superheat temperature from O℃ to 5℃ by 1℃ at each condensing pressure. As a result of experiment, when the superheat temperature is 1℃ at each condensing pressure, the refrigeration system has the highest performance.

컴퓨터와 사용자와의 상호작용을 통한 영상 특성 추출함수의 최적화

김승현,서재현 인제대학교 1997 仁濟論叢 Vol.13 No.1

영상처리에서 가장 주요한 주제의 하나는 어떻게 "처리하고자 하는 대상의 특징값"을 분리해낼 것인가에 대한 것이다. 또한 이러한 특성값 추출 처리의 전제로서 경험과 지식이 풍부한 전문가가 영상의 분석을 위해 분리해내는 경우와 비슷한 정도의 결과를 얻어 낼 수 있느냐가 실용화의 관건이 될 것이다. 그러나 이러한 처리를 하는 데에 가장 큰 문제점은 비교사적 방법에서는 컴퓨터는 [처리할 영상에 대한 지식]을 가지고 있지 않으며, 프로그램의 작성자가 처리할 영상의 샘플들을 미리 입수해 통계적으로 처리하고, 이에 의해 만든 특성 추출 함수에 의존하여 기계적으로 영상의 특성 값을 분리했기 때문에 첫째, 다른 종류의 영상 데이터에는 사용이 불가능하며, 둘째, 영상 데이터의 특성이 변할 경우 특성 추출함수를 새로 만들기 위해 많은 노력과 시간이 필요하며, 셋째, 최종 사용자가 쉽게 새로운 분야에 적용시키지 못하는 단점이 있으며, 사용자가 샘플 영상을 미리 넣어주는 방법을 통한 교사적 방법을 이용할 경우에는 첫째, 사용자가 잘 정의된 샘플 데이터와 결과 값을 미리 준비해야 하며, 둘째, 학습을 위한 시간이 너무 오래 걸리며, 셋째, 결과가 만족스럽지 못할 경우에는 몇 번이라도 재교육을 필요로 하는 어려움이 있었다. 본 논문에서는 이러한 문제점을 몇 가지 영상 샘플(training set)과 현재까지 가장 널리 사용되는 주요한 특성 추출 함수, 그리고 실제 사용자와의 상호작용에 의해 지식을 축적해 나감으로서 위의 문제점을 해결하고 최적화된 특성 추출 함수를 생성함으로서 보다 좋은 결과를 얻어내기 위한 방법을 제시한다. One of most important topic in image processing is feature extract and classification But in its process, the significant problems are that, (1) a way without teachership: first, if a image is changed. it can't be used next. second, to make a new feature extract function, it make a new feature extract function, it requires many times and much effort. second, to make a new feature extract function, it requires many times and much effort. finally, it is hard for end user to apply to a different field. (2) teachership way: first, a user have to prepare sample data and result values in each time. second, it spends many times on learning. finally, if the result of study is not content, the user have to receive retraining. So, in this paper we suggest a solution of the problems.

남북관계 있어서의 스포츠의 역할

최승룡 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.1

We know that it is necessary to promote exchanges in various fields, including politics, economics and etc., between South and North Korea for the unification of Korean peninsula. But we also know that some difficulties are in the way of those exchanges, because South and North Korea have been separated since 1945 and it has made serious heterogeneities in two societies. As a precondition for the unification of Korean peninsula, therefore, South and North Korea need to recover the homogeneities as a race and expand the exchanges in the area of sports field. The exchanges of sports which join bodies to bodies and link hearts with hearts, possibly develop a new partnership based on mutual understanding and trust, and possibly recover the homogeneities as a race. In order to activate the exchanges of sports between South and North Korea, it is necessary for us to offer legal and institutional supports with the agreements for ruling sports games and operating sports funds. And also, we need to promote the various, continuous, and step-by-step exchanges of sports. We need to have the community senses as a race to unify South and North Korea. Activating the exchanges of sports will make a great contribution towards this without any political accounts. Here, I suggest some principles in the exchanges of sports. Firstly, not to speak of building a unified team, constructing a unified cheering party, and having mutual visiting games, we should make efforts to foster and support the industries in relation to sports, and exchange and share the information in relation to sports. Also we need to expand the opportunities for a variety of interpersonal exchanges between South and North Korea. Secondly, needless to say promote government-level or athletic group-level cooperation, private-level cooperation need to be also activated. The efforts for the spontaneous and autonomous cooperation between two societies are positively encouraged. Thirdly, we should promote and accomplish regularly the mutual visiting of sports games like taekwondo or Korean wrestling, which have strong traditional factors in South and North Korea, in order to cultivate the community senses as a race. Finally, we need to standardize the differences in athletic terms and athletic rules between South and North Korea.

疲勞現象의 生化學的 硏究

白昇澤 全北大學校 1960 論文集 Vol.3 No.-

수질개선을 위한 Fixation과 Air Jet System 개발

권성환,정광영 公州大學校 工學硏究院 生産技術硏究所 2003 論文集 Vol.11 No.-

This paper presents development of a fixation and an air jet system for water quality improvement. The fixation is a dredging machine that scoops or suctions sediment from the bottom of waterways. The air jet system is a system to blow air and water in the water for water quality improvement. A fixation and an air jet system are designed and their proto type models are made for water quality improvement. Overall structures of the two are introduced.

관절염 환자의 실태와 관련요인에 대한 분석적 연구

정승기,남철현,신두만,양숙희,김기열,이미경,문기내 대한보건협회 2002 대한보건연구 Vol.28 No.3

This study was conducted to examine the condition of patients with arthritis and its related factors. Data were collected from 100 people who suffered from arthritis in Seoul. Busan, Daegu, Daejun, Junjoo, and pohang from April 2, 2000 to July 31, 2000. The results of this study are summarized as follows : 1. 6L0% of the subjects were female. The incidence rate of arthritis was higher in the higher age group, lower educated group, and thinner group. In case of male, the incidence rate was higher in the groups of single, residents in big cities, and technicians. In case of female, it was higher in the groups of the married, residents in towns or villages, and housewives. 2. According to the parts of arthritis, knee joint covered 67.4% and backspine joint covered 9.0%. The incidence rate of arthritis was higher in the groups of forties, housewives, single, irreligious people, residents in towns and villages, primary school graduates, thin people, and walk exercisers. 3. The arthritis patients felt pain most when they stood up (31.5%). According to the time when they felt pain most, the time when they were active during daytime was 31.5% and nighttime was 29.8%. When they got up in the morning was 22.4%, while 10.9% felt pain all cay long. 4. they had arthralgia knees and cramp in crook of the knees (21.8%). Their knees ticked when they moved (21.1%). The had to rest hands on anyplace when they stood up (18.7%) and they could not completely unfold their knees. 5. The medical institutions which diagnosed them showed significant difference in the variables of sex, age, marital status, religion, place in residence, education level, economic status, obesity level, exercise, parts of arthritis, and posture of feeling pain. from above results, it can be concluded that it is necessary to develop appropriate medical treatment on the basis of the respondents' socio-democraphic characteristics, pain parts, period of having a pain, satisfaction level with treatment and its related factors. Therefore, related professionals and organizations must develop education program for prevention of arthritis in order to educate them.

전력시스템의 전압변동 현상과 최적 전압보상 방안에 관한 연구

김승환,유인근 창원대학교 산업기술연구소 2001 産技硏論文集 Vol.15 No.-

In resent years, electric power quality has become an important issue in power systems. A rapid development of high technology society encompassing sensitive loads raise the increasing dependence of higher quality electric power, and consumers request the high reliability in electric power than ever before. Consumers wanted mainly the reduction of duration of voltage variation in the past. Generally, power quality is voltage, frequency, reliability(outage) etc. The sources and characteristics for voltage variation of power system and the effects for electric equipment of voltage variation are analized in this paper. The voltage variation and compensation countermeasures of west Kyung-nam province in KEPCO system have been simulated using PSS/e. The voltage drop is measured in the case of SLGF(single line ground fault) and TPSCF(three phase short circuit fault), at 345kV transmission line and bus, 154kV, 23kV bus and 6.6kV bus of industry. The voltage compensation characteristic of Generator, transformer and Static condenser, and the voltage compensation limits value of the compensation methods are observed, and the results of measurement at the condition of normal and abnormal(the status of 1 line open) of the 2 lines radial power systems are also analyzed. In the abnormal power system, the adaption of S.V.C, with method of high speed and continuous controls is simulated for voltage compensation. It is shown that the S.V.C is the best voltage compensation method in loop power system or 2 lines radial system.

기립자세에서 발위치가 무릎 폄근의 등척성수축 근전도 활성도에 미치는 영향

김성중,권오윤,조상현,황지혜 한국전문물리치료학회 2001 한국전문물리치료학회지 Vol.8 No.2

This study was designed to identify the effects of foot position on electromyographic (EMG) activity of the quadriceps femoris during maximum voluntary contraction (MVC) in standing. Twenty young adults who had not experienced any knee injuries were recruited. Their Q-angles were within a normal range. They were asked to stand in five different foot positions (40˚externally rotated, 30˚ internally rotated, neutral, 20˚ plantarflexed, and 10˚dorsiflexed foot position). The EMG activities of the vastus lateralis (VL), rectum femoris (RF), and vastus medialis oblique (VMO) were recorded in standing by surface electrodes and normalized by MVC EMG values derived from manual muscle test. The normalized EMG activity levels (%MVC EMG) of muscles in the five foot positions were compared using repeated measures ANOVA. The EMG activity levels of the VL, RF, and VMO were the highest when foot was externally rotated. The EMG activity levels of the VL and RF were significantly different among the foot positions (p<.05). However, EMG activity levels of the VL, RF, VMO, and VMO/VL ratio did not show significant differences in each foot position (p> .05). The results suggest that the quadriceps femoris may be effectively activated by performing MVC a: an externally rotated foot position. Therefore, the externally rotated foot position can be considered as an effective foot position for quadriceps femoris strengthening exercise. Further studies are needed to identify whether there are differences in the effects of foot position on muscle strength after MVC exercise of quadriceps femoris in standing.