태권도 선수의 운동상해 예방을 위한 조사연구 : 전국 고등학교 태권도 선수들을 대상으로

김원규,이종희,장완성 경희대학교 체육대학 한국체육과학연구소 2003 體育學論文集 Vol.31 No.-

Taekwondo players by analyzing the primary factor of exercise injury and researching on the actual condition related to media treatment. To dot it, male and female players at 14 High Schools in Korea, who are registered in Korea, Taekwondo Association, were selected as the subjects of this study. The result of this research is as follows. 1) 73 males(52.5%) and 59 females(42.4%) appeared to have exercise injury. 2) The parts of exercise injury about male appeared to be ankle joint 87 times (11.0%), foot 80 times (10.1%), knee joint 59 times (7.4%) in the order of the frequency of occurrence and about female to be ankle joint 87 times (11.0%), foot 74 times (9.3%), knee joint 63 times (8.0%) 3) The type of exercise wound in male appeared to be bruise 154 times (19.4%), muscular pain 94 times(11.8%), and in female bruise happen 134 times(16.9%) and muscular pain 73 times(9.2%) in the order of the frequency. 4) Injury was experienced during exercise among 22 persons(15.8%) in class pin and among 19 persons (13.7%) in both class bantam and feather. 5) All pin, flight, bantam, feather and heavy weight classes showed ankle as the most frequent exercise injury region among all the injury parts during exercise. Light weight class had knee joint 25 times (3.2%) and both welter and middle classes indicated foot area as the most often wounded part. 6) In injury types happened during exercise, bruise turned out to be 298 times(31.7%), the highest level. Next, the occurrence rate of muscular pain was 20.8%(167 times). 7) It is true 165Cm to 170Cm tall persons have most exercise injuries : 39 persons (28.1%). Next, 170 Cm to 175Cm tall players with injury were 28 persons (20.1%). 8) The area injured most often during exercise was that of ankle joint as 174 times (21.9%) in 160 to 165Cm, 165 to 170 Cm 170 to 175Cm tall players and players over 185Cm Foot was most frequently hurt part as 21 times (27%) in 175Cm to 180Cm tall players. Hand & foot joint and knee joint 7 times (0.9%) in 180 to 185 Cm tall players. 9) Players under 160Cm height and 160 to 165Cm, 165 to 170Cm, 170 to 175Cm tall players and players over 185Cm, showed the highest rate of bruise as the type of injury occurred during exercise and next to it, muscular pain. 175 to 180 Cm players experienced muscular pain 33 times (4.1%), bruise 31 times(3.9%) and 180 to 185 Cm players went through with bruise 17 times(2.l%) and fracture of a bone 8 times (1.0 %). 10) When it comes to total exercise period, 54 persons(38.8%), the highest rate of male, exercise over 4 hours and as to female, 50 persons The purpose of this study is to investigate to offer the basic materials essential for protection from exercise injury of (36.0%) exercise over 4 hours. 11) The injured cause of exercise in male was their carelessness (30 persons : 22.7%), the lack of preparatory exercise and the foul of opponent players (10 persons each : 7.6% each), Instead, for women, excessive work was the cause of exercise injury in 13 persons (9.8%) and their carelessness was that of the injury in 11 persons(8.3%). 12) Male chose emergency treator as following : medical experts(19 persons : 14.4%), the person himself, a coach or an inspector (16 persons : 111%). Female chose emergency treaters following : medical expert (21 persons : 15.9%) and a coach or an inspector (16 persons : 12.1%). 13) Thorough warm-up & arrangement exercise (47 persons : 14.0%), complete recovery from tiredness, wearing protective device, being well-nourished, mental & psychological stability, reasonably held matches in numbers, and etc are shown in order as the protective way of exercise injury in males. On the other hand, in females, complete recovery from tiredness(43 persons : 12.8%), thorough warm-up & arrangement exercise, wearing protective device, mental & psychological stability, being well-nourished, reasonably held games in numbers, appear in the order of frequence.

On-Line Hangul Recognition Using Wavelet Transformation and Fuzzy Theory

홍규완,조한수 동의공업대학 2000 論文集 Vol.26 No.1

본 논문에서는 웨이브렛 변환과 퍼지 데이터를 입력으로 한 신경망을 이용한 필기체 한글 인식 시스템을 제안하고 실험 결과를 보인다. 본 시스템에서는 분별력이 높고 고정도의 특징을 추출하기 위해 웨이브렛 변환을 이용한다. 기본 웨이브렛의 주파수 영역을 변화하여 생성된 다양한 주파수를 갖는 웨이브렛을 사용함으로써 퓨리에 변환이나 매쉬 특징에 비해 강력하고 풍부한 특징을 추출할 수 있어서, 필기체 한글에 포함된 여러 종류의 변형 특징이나 극소로 미세한 부분적 변형에도 쉽게 대응할 수 있다. 웨이브렛 변환을 적용하기 위해 입력된 데이터를 축 방향에 대한 좌표 이동량을 나타내는 연속적인 신호 형태의 데이터로 변화하고 이 신호 데이터에 웨이브렛의 스케일 함수를 변화시킴으로써 각 스케일에서 패턴의 전역적인 특징과 국소적인 특징을 동시에 추출한다. 또한 필기 변형을 흡수하기 위하여 웨이브렛 변환에 의해 추출된 주파수의 강도를 이중 의미를 갖는 멤버쉽 함수를 사용하여 퍼지화하고 인식 네트워크에 연결되어 있는 신경망을 이용하여 인식을 수행한다. 한국과학 기술원의 온라인 한글 데이터를 사용하여 인식한 결과 필기체 4,100문자, 흘림체 2.800 문자에 대해서 각각 96.7% 96.1%의 높은 인식률을 얻어 제안한 시스템의 유효성을 확인했다.

절삭공정의 성능예측에 관한 연구

황규완,김순경,전언찬 동아대학교 공과대학부설 생산기술연구소 1996 生産技術硏究所硏究論文集 Vol.1 No.2

This paper focuses on the aurtomatic selection of optimal cutting condition and cycle time on multispindle metal cutting machine. The several mathematical relationships were formulated for simultaneous selection of machining parameters and tool changing scheme. In this research we two step generative approach ; step 1 is mathematical modeling for the selection of optimal cutting conditions and the other is GMDH-TYPE modeling to find prediction equation of system performance. Thus in this paper, mathematical machining models combined with a heuristic GMDH-TYPE modeling to estimate the system performance. These models are developed computer programs for practical applocation and it was shown that the proposed approach has a good potential and offeers a valuable tools to analyze the metal cutting system.

Petri Nets 모델 개발에 의한 FMS 출력율 분석에 관한 연구

황규완,하정진 한국경영과학회 1994 韓國經營科學會誌 Vol.19 No.3

Petri Nets are a graphical and mathematical modeling and promising tool for describing and studying systems that are characterized as being concurrent, asychronous, dynamic, distributed and parrallel. The purpose of this paper is to analyze FMS Throughout-Rate by development of Petri Nets. So, it applied to FMS composed of 7 machines and 4 different job types. The result of this paper shows the advantage of using Petri Nets.

유방 절제술 후 조기 운동프로그램의 치료 효과

이규완,이충휘,조상현,박정미 한국전문물리치료학회 2001 한국전문물리치료학회지 Vol.8 No.1

The purposes of this study were to investigate the therapeutic effects of an early exercise program after mastectomy and to provide the early exercise program protocol for patients who had undergone mastectomy. The subjects were seventy women who were diagnosed with breast cancer. They were randomly assigned either to a experimental group (n=35) that received early postoperative exercise program or to a control group (n=35) that received only education by nurses. Data were obtained for each patient from goniometric measurements of shoulder flexion, abduction, external rotation, 10 elements of functional performance, and subjective pain evaluation using visual analogue scale (VAS). All variables were measured preoperatively, three days postoperatively, and one month postoperatively. Data were compared by groups using independent t-test and Mann-Whitey U test for parametric or non-parametric data, respectively. There were no significant differences between the groups for all variables preoperatively and at three days postoperatively. But there were significant differences at one month postoperatively. The experimental group showed a statisti-cally significant increases in shoulder flexion, abduction, and external rotation and in the pain VAS at one month Postoperatively (p〈,05). Also, at one month prostoperatively, the experimental group had less difficulty with three elements of functional performance-doing up a 'back' zippered article of clothing, reaching the ipsilateral scaula, and contralateral scapula with the fingers on the operated side- than the control group (p〈.05). The results of this study suggest that after mastectomy, the early exercise program conducted by a well-trained physical therapist can make a significant contribution to the return of more normal shoulder function and activities of daily living and to an increased quality of life.

웹기반 정보처리 산업기사 자율학습 시스템의 설계 및 구현

홍규완 동의공업대학 2001 論文集 Vol.27 No.1

In this paper, I proposed the design and the implementation of a web based self learning system for information processing certificate. This system is consist of four modules: User identification module, Professor module, Student module, Learning valuation and Consulting module. The user identification module classifies a user into student, professor, and system manager. The professor module provides the function that professor inserts exercise questions into self learning system. The student module provides the function that a student learns exercise questions and views the result of self learning. This self learning system can increase the efficiency of web based self learning for information processing certificate.

CT performance phantom을 이용한 cone beam형 전산화단층영상의 특성

한충완,김규태,최용석,황의환 대한구강악안면방사선학회 2007 Imaging Science in Dentistry Vol.37 No.3

Purpose : To evaluate the characteristics of (widely used) cone beam computed tomography (CBCT) images. Materials and Methods : Images were obtained with CT performance phantoms (The American Association of Physicists in Medicine; AAPM). CT phantom as the destination by using PSR 9000N™ dental CT system (Asahi Roentgen Ind. Co., Ltd., Japan) and i-CAT CBCT (Imaging Science International Inc., USA) that have different kinds of detectors and field of view, and compared these images with the CT number for linear attenuation, contrast resolution, and spatial resolution. Results : CT number of both PSR 9000N™ dental CT system and i-CAT CBCT did not conform to the base value of CT performance phantom. The contrast of i-CAT CBCT is higher than that of PSR 9000N™ dental CT system. Both contrasts were increased according to thickness of cross section. Spatial resolution and shapes of reappearance was possible up to 0.6 mm in PSR 9000N™ dental CT system and up to 1.0 mm in i-CAT CBCT. Low contrast resolution in region of low contrast sensitivity revealed low level at PSR 9000N™ dental CT system and i-CAT CBCT. Conclusion : CBCT images revealed higher spatial resolution, however, contrast resolution in region of low contrast sensitivity was the inferiority of image characteristics.

신경망에 의한 지능형 원격학습 상담 시스템의 구현

홍규완 동의공업대학 1998 論文集 Vol.24 No.1

The existing academic institutions are trying to construct a 'new education paradigm', virtual colleges the using internet and web-based technologies to provide quality education services. Many education administrators, scholars and computer scientists say that this new education paradigm is the most attractive concept to remove the time and space limitation of disadvantages of traditional colleges and produce the consumer-oriented education services. However, remote learning systems have disadvantages such as lack of learning control method and learning motivation compared to traditional class learning. In this paper, I implemented an intelligent counselling system for remote learning using a neural network that is excellent for regional division for supporting disadvantages of the remote learning system.

상부 조기 위암 환자의 복강경하 상부 위절제술 3례 경험

조규석,김형철,박경규,이문수,송옥평,임철완,신웅진,주종우,유기원 순천향의학연구소;Soonchunhyang Medical Research Institute 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Background : The reported incidence of early gastric cancer located in the upper portion of the stomach has been increasing with the recent advances in its diagnosis and screening. Recently, we have successfully performed laparoscopic assisted proximal gastrectomy and gastric tube reconstruction without pyloroplasty on three patients with early gastric carcinoma localized to the upper third of the stomach. We describe our modification of this procedure in this report. Method : After creating an surgical pneumoperitoneum, the stomach was mobilized using laparoscopic coagulating shears. Upper half of the greater curvature and three-quarters of the lesser curvature were then dissected along with regoinal D2 lymphadenectomy. This was followed by a 5 cm, longitudinal mini-laparotomy in the upper abdomen, and the construction of the exteriorized stomach with a gastric tube measuring 20 cm long and 4 cm wide. Reconstruction with an esophagogastrostomy was performed using a circular stapler. Result : No post-operative morbidity or mortality was observed in this small series of patients. The average operative time was 250 minutes (range 220-300 minutes), and the average blood loss was 150 ml (range 90-180 ml). The mean number of lymph nodes harvested during these laparoscopic proximal gastrectomies was 24 nodes (range 22-25 lymph nodes). The average postoperative hospital stays was 7.5 days (range 7-8 days). Conclusion : Our technique of laparoscopic assisted proximal gastrectomy and gastric tube reconstruction without phloroplasty offers a minimally invasive technique with the potential of impoving the post-operative quality of life patients with an early-stage proximal gastric cancer.

고속주축 모니터링용 광파이버 변위센서의 파이버 특성에 따른 센서 성능 연구

박찬규,신우철,배완성,홍준희,이동주 한국공작기계학회 2003 한국공작기계학회 추계학술대회논문집 Vol.2003 No.-

To make high speed spindle system work properly, sensors with outstanding resolution and dynamic characteristics are essential. An optical fiber displacement sensor is based on simple principles. Electrical signal responds to the optical flux change due to the displacement change between a target and a sensor probe. In this paper, the performance of optical fiber displacement sensor has been investigated according to properties of optical fiber. Firstly, optical loss has been measured before and after polishing optical fiber endface. Secondly, allowance of optical fiber bending has been tested. thirdly sensitivity and linear range of the sensor has been found out according to the shape of cross section of optical fiber.