여자 테니스 선수의 양손 백핸드 스트로크 동작시 상지의 근전도 분석

유국종,서국웅,윤양진,이훈식,정미라,서국은 한국운동역학회 2000 한국운동역학회지 Vol.9 No.2

This study analzed AEMG, muscle activity duration time, peak value and work load of six high school student players, three college student players, three business team players in order to analyze Arm's EMG when they play games with two-handed backhand stroke. The instruments of measuring EMG are muscle tester ME3000p. And measured parts of muscle are the triceps brachii, biceps brachii, brachioradialis and flexor carpi radialis of body left and right arm. The following is the result according to the analysis of raw data and statistics. 1. The AEMG of trained group was higher than the untrained. In both groups AEMG of right arm was higher than left one. And AEMG of forearm was higher than upperarm. The order of high AEMG among the trained is as followed ; right biceps brachii, left brachii, right brachioradialis. Among the untrained ; right brachioradialis, left brachioradialis, biceps brachii. 2. The muscle activity duration time of the trained group was totally shorter than the untrained. In both groups muscle activity duration time of the right arm was shorter than the left one. As to trained muscle activity duration time of upperarm is shorter than the forearm. Contrarily, as to untrained muscle activity duration time forearm is shorter than the upperarm. The order of short muscle activity duration time among the trained is as followed ; right biceps brachii, triceps brachii, left flexor carpi radialis. 3. The peak value of trained group was higher than the untrained. In body groups peak value of the right arm was higher than the left one. As to the trained the peak of the upperarm is higher than the forearm. Contrarily, as to the untrained, the peak value of the forearm was higher the upperarm. The order of high peak value among the trained is as followed ; right biceps brachii, left biceps brachii, right brachioradialis. Among the untrained, right brachioradialis, left biceps brachii, brachioradialis.

Lithium‐Sulfur Batteries: An Advanced Lithium‐Sulfur Battery (Adv. Funct. Mater. 8/2013)

Kim, Junghoon,Lee, Dong‐,Ju,Jung, Hun‐,Gi,Sun, Yang‐,Kook,Hassoun, Jusef,Scrosati, Bruno WILEY‐VCH Verlag 2013 Advanced functional materials Vol.23 No.8

<P>On page 1076, Yang‐Kook Sun, Jusef Hassoun, Bruno Scrosati, and co‐workers report and characterize a hard carbon spherules‐sulfur electrode that is prepared by impregnation of crystalline sulfur into the carbon spheres through melting and thermal treatment. This material demonstrates very high capacity and rate capability, and is therefore proposed as a new generation cathode to drive electric vehicles over a long range. </P>

편차 적응 퍼지 알고리즘을 이용한 자동 동조 PID 제어에 관한 연구

양명국,이양범 울산대학교 1996 공학연구논문집 Vol.27 No.2

PID 제어는 각종 산업용 기기 제어 분야에서 우수한 기능을 제공하며, 광범위한 제어 시스템에 다양한 방법으로 적용되어, 그 응용 분야가 확장되고있다. 그러나 PID 제어기는 운전 중 발생하는 환경 변화에 적응하기 위하여 수행되는 새로운 동조 이득 값 산출 과정이 매우 난해할 뿐 아리나, 장 시간 동조작업을 요구하므로 현장 운전자에게 과중한 부담을 제공하고 있다. 본 논문에서는 기존의 PID 제어기에 Fuzzy 자동 동조 기법을 이식하여 PID 제어기 동조 작업을 자동으로 수행하도록하는 편차 적응 퍼지 자동 동조 PID 제어기를 설계 제안하고, 이의 성능을 실험으로 입증하였다. 제안된 퍼지 자동 동조기 현장 운전자의 PID 동조 기법을 분석하여 제어계의 입 출력 제어 파라미터를 설정하고, 구체적인 동조 과정 및 다양한 경험적 요소를 기반으로 설계된 퍼지 Rule-base를 근간으로 개발되었다. 드럼 형 65톤 보일러의 수위 및 압력 제어계 PID 제어기에 본 연구에서 개발한 펴지 자동 동조기를 탑재, 장시간 다양한 시뮬레이션을 수행한 결과, 제안한 펴지 자동 동조 PID 제어기는 시스템의 변경된 운전 환경에 따른 최적 이득 값을 산출하여 제어 대상 시스템이 적절한 출력 값을 생성, 유지 하도록하는 성능의 우수성을 보였다. PID control is well-known and widely used technique in various areas of industrial plants due to its verified reliability and control performance. It, howere, requires special knowledge and training with long experiences on plant control as well as the persistent effort to obtain a proper gain. In this paper, an Error Adaptive Fuzzy Auto-Tuning Algorithm where the fuzzy concept is implanted on the PID controllers to tune a PID controller automatically is designed and proposed. The proposed Fuzzy Algorithm is developed based on both the appropriate tuning rules that are investigated from the diverse know-how and experience of experts and the classical PID tuning techniques. The algorithm is simulated on the 65 ton Drum type boiler where the PID controllers are used to control water level and steam pressure of the drum. It has been shown that the proposed algorithm quickly find the optimal tuning point of the PID controller and provides satisfactory on-line transient behavior of the large plants.

골프 드라이브 셋업의 지면반력 일관성과 전략

양충모,서국웅 釜山大學校 附設 體育科學硏究所 2009 體育科學硏究所 論文集 Vol.25 No.1

골프나 양궁 등의 스포츠에서 일관적인 운동이나 자세수행은 경기력 향상에 매우 중요한 능력이다. 골프 게임에서 여러 가지 요소에서 일관성은 성공적인 골프를 위한 것으로 골프 지도자들에 의해 강조되고 있고, 셋업은 골프스윙에 가장 큰 영향을 미친다. 본 연구의 목적은 여자 프로골퍼가 드라이브 셋업을 할 때 지면반력(GRF)평균과 체중의 양발배분의 크기를 밝히는데 있다. 연구에 13명의 KLPGA정회원이 참가하였다. 연구의 변수는 좌.우 발의 GRF(LFz, RFz)와 압력중심점의 거리(DCoP)로 하였다. 각 피험자에게서 15회 셋업의 변이계수(CV)를 계산하였다. Fz와 DCoP의 CV는 1.8+-0.5% 였다. 3가지의 다른 체중 분배와 무게 중심전략으로 나타났다. 이 결과로 여자프로골퍼들의 셋업은 매우 일관된 각자의 전략을 갖고 있음을 알 수 있다.

급성 백혈병 환자에서 발생한 감염 양상의 분석(1986~1992)

박선양,오명돈,김양수,백경란,김병국,최강원,김성민 대한감염학회 1993 감염 Vol.25 No.3

Infection is a major complication and potentially life-threatening in patients with acute leukemia. The patients require prompt broad-spectrum antibiotics therapy when fever develops. One of the keys to successful patient management is the recognition of institutional trends of the spectrum of infections and infecting microorganisms. So we evaluated 138 patients with acute leukemia and blastic crisis of chronic myelogenous leukemia admitted to Seoul National University Hospital from July 1986 to June 1992. The results are following: 1) Total number of febrile episodes was 224 and 60% of them occurred after chemotherapy. 2) Microbiologically-defined infection, clinically-defined infection, and unexplained fever accounted for 28%, 45%, 27% of the febrile episodes respectively. 3) Fifty-eight percent of microbiologically-defined infections were caused by gram-negative bactria, and 36% were gram-positive bacteria. There was a tendency to a greater proportion of gram (+) organisms than that of the last study (p>0.1). Escherichia coli was the most common organism, and coagulase-negative staphylococci, Pseudomonas aeruginosa, Klebsiella pneumoniae were common in decreasing order. 4) Pneumonia was the most common type of infection, followed by skin and soft tissue infection, perianal infection, gingivitis and primary septicemia. 5) Seventy-two percent of total infections improved with therapy and this success rate was higher than that of the last study(p<0.001).

심장이식 후 재활

박국양 世宗醫學硏究所 1993 世宗醫學 Vol.10 No.1

정상 및 Phenylhydrazine으로 처치한 토끼 적혈구의 Adenosine Deaminase Isozymes의 활성도에 관하여

李鉉國,車鍾希,李奉宰,金良均,李根培 조선의대 1984 The Medical Journal of Chosun University Vol.9 No.1

임팩트시 테니스 라켓 재질의 차이에 따른 근전도 분석

윤양진,유국종,서국웅,정미라,강영택,이훈식,서국은 釜山大學校 附設 體育科學硏究所 1999 體育科學硏究所 論文集 Vol.15 No.-

The purpose of this paper is to select 7 male athletes and female athletes of high school, and to compare their active potential differences of upper arm muscles according to characteristic of a racket. the results obtained are as follows: 1. According to the accumulative distribution rate of racket material, graphite and wood material show better efficiency in case of brachio radialis muscle of male athletes, but the racket material shows no constant efficiency in brachii radialis muscle of female athletes. In case of flexor carpi radialis muscle, wood material provides better efficiency only for male athletes. In case of triceps brachii muscle, wood material gives better efficiency to males athletes and steel material gives better efficiency to females athletes. Especially in case of biceps brachii muscle, neither male nor female athletes are influenced by racket materials at impact. 2. In the muscle load rate according to racket material, wood has the highest muscle active potential and graphite has the lowest active potential. Therefore, graphite is thoght to be better in the efficiency of muscle load rate.

풍선 카테터에 의한 폐동맥 판막 성형술

박국양,김창호 大韓胸部外科學會 1990 Journal of Chest Surgery (J Chest Surg) Vol.23 No.6

위장관 분석의 임상적 고찰

김양우,윤영국 慶北大學校 醫科大學 1990 慶北醫大誌 Vol.31 No.4

저자는 1979년 1월부터 1989년 12월까지 경북대학교 병원 외과에서 치험하였던 위장관분석 32예에 대하여 임상적 관찰을 하여 다음의 결과를 얻었다. 1) 성별분포는 남:여가 1.5:1로 남자에게 조금 빈발하였으며, 년령은 비교적 고른 분포를 나타내었다. 2) 과거수술력은 16예(50%)에서 있었으며 그 중 위수술이 11예로 가장 많았다. 3) 분석의 위치는 회장이 13예(40.6%)로 가장 많았으며 그 다음 위(8예), 공장(5예), 위 및 회장(3예), 십이지장(2예), 그리고 위 및 공장(1예)의 순이었다. 4) 수술 전 진단이 된 예는 전체 32예 중 13예(40.6%)로서 내시경이나 상부위장관 조영술로 진단된 예가 11예, 단순복부촬영으로 진단된 예가 2예 있었다. 5) 분석의 갯수는 단일분석이 24예(75.0%), 다발성인 경우가 8예였다. 6) 치료는 전체 32예 중 자연통과가 2예, 단순절개에 의한 제거가 27예, 미주신경절단술 및 유문성형술이 2예, 미주신경절단술 및 위전정부 절제술을 1예에서 실시했으며 사망예는 없었다. A review of 32 patients with gastrointestinal bezoars was conducted. Male to female ratio was 1.5:1. Sixteen patient had provious history of laparotomy of whom 11 cases underwent gastric surgery. The bezoars located most frequently in the ileum(13 cases). Thirteen patient(40.6%) were correctly diagnosed preoperatively. Twenty four patient (75.0%) had single bezoar and 8 cases had multiple in number. Enterolithotomy was performed in 27 cases, Vagotomy and pyloroplasty in 2 cases, and Vagotomy and antrectomy in 1 case for the treatment.