• 한국추진공학회지
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• 제3권4호
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• pp.93-103
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• 1999

소, 중형 산업용 항공기나 초등 훈련기용으로 많이 이용되고 있는 터보프롭 엔진의 정상상태 성능해석 프로그램을 개발하고 성능진단을 위해 선형 GPA 기법을 적용하였다. 정상상태 성능해석 프로그램의 검증을 위해 상용 정상상태 해석 프로그램인 TURBOMARCH 해석결과와 비교하였다. 지상정지조건에서의 성능 및 비행마하수에 따른 출력 둥을 비교한 결과 각 구성품의 입,출구 온도 및 압력, 출력 등에서는 약 3%이하의 오차율을 보였으며, 마하수 변화에 따른 출력 비교에서도 최대오차율 2.4 % 이내로 프로그램의 신뢰성을 확인하였다. 선형 GPA 기법의 계측변수의 선정에 따른 정확성을 알기 위해 종속변수의 선정을 다르게 하여 오차율을 알아보았다. 성능저하 원인으로는 압축기에만 오염이 발생하였을 경우, 압축기와 압축기 터빈에 각각 오염과 부식이 발생하였을 경우, 압축기 터빈과 동력터빈에 동시에 부식이 발생하였을 경우, 압축기, 압축기 터빈, 동력터빈이 모두 오염과 부식이 발생하였을 경우를 가정하였다. 해석결과 계측기 변수가 많을수록 RMS 오차가 적었으며 같은 수의 계측기 변수라 하더라도 어떠한 변수를 계측하는가에 따라 오차율이 달라짐을 알 수 있었다. 비교적 오차율이 적으면서 경제성이 있는 경우는 8개의 측정변수를 이용한 경우로 최적의 계측기 수 및 계측기 변수 선정이 중요함을 알 수 있었다.

• 한국산학기술학회논문지
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• 제14권12호
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• pp.6237-6245
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• 2013

본 연구는 리듬청각자극을 이용한 후방 보행 훈련이 뇌졸중 환자의 보행과 균형에 미치는 영향을 알아보기 위한 것으로 21명의 뇌졸중 환자를 무작위로 세 집단으로 나누었고, 실험군I은 전방 보행 훈련 군, 실험군II은 후방 보행 훈련군, 실험군III은 리듬청각자극을 이용한 후방 보행 훈련 군으로 집단마다 7명씩 실험하였다. 실험은 3주간 주 5회 30분씩 실시하였으며 실험 전과 3주간의 실험 후에 각 실험군의 10m 보행 검사, 일어나 걸어가기 검사, 기능적 팔 뻗기 검사를 하였고, biodex gait trainer 2를 사용하여 활보장과 보장비대칭 비를 측정하였다. 연구의 결과 각 군내의 실험 전 후 비교에서 보행속도, 보행대칭성, 균형에 유의한 차이를 보였고(p<.05), 변화량을 비교했을 때 모두 유의한 차이를 보였으며(p<.05), 보행속도, 보행대칭성과 균형에서는 실험군III, 실험군II, 실험군I 순으로 효과적이였고, 활보장에서는 실험군II와 실험군III이 실험군I보다 효과적이였다. 이 결과를 통하여 뇌졸중 환자를 대상으로 보행 운동을 실시할 때 리듬청각자극을 이용한 후방 보행 훈련이 보행속도, 보행대칭성과 균형의 향상에 있어서 효과적인 방법임을 알 수 있다.

• 기술혁신연구
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• 제17권1호
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• pp.149-177
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• 2009

최근의 전쟁양상은 과거의 전쟁과는 확연히 구분되어 첨단 정보 과학전 능력이 전쟁의 승패를 결정짓는다. 전쟁양상의 변화에 따라 각 국가들이 국방력 강화를 위해 추구해야할 요소들 또한 변화되었다. 또한, 북한을 비롯한 중국과 일본의 첨단 군사력 증강은 동북아 지역의 패권 경쟁을 예고하고 있으며 향후 우리 안보정세에 있어서의 심각한 위협 요인으로 대두되고 있다. 따라서 미래 전에 대비한 첨단 기술소요를 선별하여 전략적 차원에서 집중 개발함으로써 신기술, 신개념의 미래첨단 무기 개발능력을 확보하여 자주국방을 수립하기 위한 기반을 시급하다. 이를 위해, 본 연구에서는 국방연구개발 역량 강화하여 핵심기술의 개발 및 선진기술 추격을 위한 전략적 R&D 거버넌스를 구축하고자 한다. 본 연구는 크게 세 가지로 나누어 볼 수 있는데, 첫 번째로 기술 추격형 국방연구개발 사업의 R&D 거버넌스모형 수립을 위한 기존 거버넌스에 관한 이론연구이다. 기존 거버넌스 연구는 공통문제 해결 기제로서의 거버넌스, 정부 관련 공통문제 해결기제로서의 거버넌스, 신 거버넌스의 측면으로 나누어 살펴보았다. 두 번째는 국방연구개발 전략 수립을 위한 R&D 거버넌스 핵심 프로세스를 통한 전략제시이다. 이는 전략적 의지를 통한 국방연구개발 사업 결정, 핵심기술 지식기반 확충, 개방형 국방연구개발을 위한 유기적인 조직체계 구축, 국방연구개발 프로젝트관리 방안 측면에서 분석해보았다. 세 번째는 R&D 거버넌스 전략모형과 T-50 사례분석이다. T-50 사례는 기초연구 단계, 탐색개발 단계, 체계개발 단계 별로 본 연구에서 제시하는 R&D 거버넌스 전략모형에 비추어 사례분석을 실시하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.999-1004
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• 2005

An algorithm for a hybrid controller consists of a sliding mode control part and a fuzzy logic part which ar purposely for nonlinear systems. The sliding mode part of the solution is based on "eigenvalue/vector"-type controller is used as the backstepping approach for tracking errors. The fuzzy logic part is a Mamdani fuzzy model. This is designed by applying sliding mode control (SMC) method to the dynamic model. The main objective is to keep the update dynamics in a stable region by used SMC. After that the plant behavior is presented to train procedure of adaptive neuro-fuzzy inference systems (ANFIS). ANFIS architecture is determined and the relevant formulation for the approach is given. Using the error (e) and rate of error (de), occur due to the difference between the desired output value (yd) and the actual output value (y) of the system. A dynamic adaptation law is proposed and proved the particularly chosen form of the adaptation strategy. Subsequently VSC creates a sliding mode in the plant behavior while the parameters of the controller are also in a sliding mode (stable trainer). This study considers the ANFIS structure with first order Sugeno model containing nine rules. Bell shaped membership functions with product inference rule are used at the fuzzification level. Finally the Mamdani fuzzy logic which is depends on adaptive neuro-fuzzy inference systems structure designed. At the transferable stage from ANFIS to Mamdani fuzzy model is adjusted for the membership function of the input value (e, de) and the actual output value (y) of the system could be changed to trapezoidal and triangular functions through tuning the parameters of the membership functions and rules base. These help adjust the contributions of both fuzzy control and variable structure control to the entire control value. The application example, control of a mass-damper system is considered. The simulation has been done using MATLAB. Three cases of the controller will be considered: for backstepping sliding-mode controller, for hybrid controller, and for adaptive backstepping sliding-mode controller. A numerical example is simulated to verify the performances of the proposed control strategy, and the simulation results show that the controller designed is more effective than the adaptive backstepping sliding mode controller.

• Asian Pacific Journal of Cancer Prevention
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• 제16권2호
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• pp.501-506
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• 2015

Background: To evaluate the effectiveness of the National Train-the-Trainers Program for Hospice and Palliative Care Experts (TTHPC) sponsored by the National Cancer Center of Korea between 2009 and 2012. This program was developed to improve the teaching skills of those in the field of hospice and palliative care (HPC). Materials and Methods: Training was offered in eight 1-day sessions between 2009 and 2012. The effect of the program was measured using Kirkpatrick's model of educational outcomes. First, levels 1 and 2 were evaluated immediately after the 1-day program (n=120). In 2012, the level-3 evaluation test was administered to trainers who offered at least one HPC training (n=78) as well as to their trainees (n=537). Results: The level-1 evaluation addressed participant reactions to and satisfaction with the program. Participants (n=120) were generally satisfied with the content, the method, and the overall course (mean range: 3.94-4.46 on a five-point Likert scale). The level-2 evaluation (learning) showed that participants gained knowledge and confidence related to teaching HPC (4.24 vs. 4.00). The level-3 evaluation (behavioral), which assessed trainers' application of teaching skills to HPC, showed that trainees rated the teaching methods of trainers (mean range: 4.03-4.08) more positively than did trainers (p<0.05). Female trainers were more likely than were male trainers to plan sessions in consideration of their trainees' characteristics (4.11 vs. 3.58; p<0.05), and nurse trainers were more likely than physician trainers to use a variety of instructional methods (4.05 vs. 3.36; p<0.05) Conclusions: We conducted systematic evaluations based on Kirkpatrick's model to assess the effectiveness of our train-the-trainers program. Our educational program was practical, effective, and followed by our HPC experts, who needed guidance to learn and improve their clinical teaching skills.

• 보건교육건강증진학회지
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• 제24권3호
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• pp.99-118
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• 2007

There are little program and services that have been developed to address the health and health care needs of vulnerable women. The access for their timely and appropriate health care and health promotion services have been a increasing concern. The purpose of this study was to suggest health promotion program for vulnerable women with collaboration of women's NGOs. At the first part of this study, we reviewed a conceptual framework for identifying vulnerable population, and issues regarding health problems, unmet needs, policies and programs that have been developed to address their need. In second part, we focused on investigating the role, subjects and activities of women's NGOs and their capacity for health promotion program. The last part of this study proposed health promotion programme with integrating above two parts of study. In describing what type of health promotion program available in women's NCOs, eight major programs and services were summarized. 1. Direct health promotion program and collaborating program with other services. 2. Education and training for empowerment of vulnerable women 3. Organizing mutual support system such as self-help group 4. Community supports. Vulnerable women living at home may benefit from linkage to community services as much as women living in facility 5. Organizing collaboration system with program for economic support and job training, social rehabilitation 6. Trainer's training for practitioners in NGOs 7. Technical, informational support from professional groups 8. A national coordinating policies for vulnerable population should be established at the central level. National support for NGOs' health promotion program are needed hi solving unmet needs of vulnerable women.

• 융합보안논문지
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• 제19권5호
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• pp.85-90
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• 2019

본 연구에서는 장애인의 신체활동량 증가를 위해 다양한 디바이스를 적용한 운동중재 동향을 분석하고, 특히 인구고령화로 인한 장애인 노년층 증가에 따른 시대적 니즈에 부합하는 융합형 디바이스 활용 운동중재를 제안하고자 하였다. 장애인에게 적용 가능한 융합형 디바이스 활용 운동중재는 첫째, 가상현실 기반 게이미피케이션을 이용한 운동중재방식, 둘째, 밴드, 시계 등과 같은 착용형 또는 신체부착형의 웨어러블 디바이스 기반 운동중재의 두 가지 유형으로 구분될 수 있다. 장애노인들에게 즐거움과 환경적 제한의 최소화, 개별화가 용이한 융합형 디바이스를 활용한 운동중재를 위해서는 편리한 조작과 간편한 운영규칙, 손쉬운 장치 설치 및 착용 방식, 미숙한 디바이스 활용능력을 보완해줄 수 있는 지도자와 같은 구성요건이 필요하며, 인지능력과 신체적 기능의 현저한 저하를 경험하게 되는 장애인 노년층의 일상생활수행능력 유지 및 향상을 위해서는 일상생활에서 친숙하게 경험할 수 있으면서도 흥미를 유발할 수 있는, 경험이 가능한 신체활동 게임이나 신체활동량 증가를 위한 다양한 디바이스의 활용이 필요하며, 이는 장애를 가진 노인의 긍정적인 신체활동 변화를 가져올 것으로 기대된다.

• The Journal of Korean Physical Therapy
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• 제14권4호
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• pp.172-182
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• 2002

Objectives: We did research in the cause of the Pitchers' injury and their recovery process to make a detailed injury list for the purpose of finding the cause of the Korean professional pitchers' injury and its classification. We drew the conclusion through the results as following. Methods: We posed a question to the 80 pitchers playing in the first team of the eight Korean professional baseball team and analyzed the 62 pieces of question paper except the paper having a mistake. We used SAS/PC statistical package in analyzing the data. Results: In the frequency of the pitchers' shoulder injury in the last three years, the injured of all the players were 61.3$\%$ and the injury free players were 28.7$\%$. The cause of the injury was 45.2$\%$ wrong pitching motion, which was the highest value. For the shape of a pain when injured, the reverberation ache feeling when he is hit in the weight commanded an absolute majority as 19.4$\%$. Those who had muscular pain were 17.7$\%$, which was felt mostly at the pitching motion. The most trouble name of the injured shoulder was bicepstendinitis as 16.1$\%$ while the injury of shoulder joint was the lowest as 1.6$\%$. As the most widely used treatment, 25.8 percent of all the players had taken an electronical thraphy after injury. 14.5 percent of the players who had an injury to the shoulder told that they have an operation and 85 percent of them didn't. As a sort of the operation, a repairing of labrum was 44.4 percent, which is the highest value and the 77.8 percent pitchers are performing a normal pitching through rehabilitation after the operation and 22.2 percent of them are undergoing rehabilitation training. Conclusion: The research have shown that the main cause of the injury, concerning the Korean professional pitchers throwing lots of ball in both matches and practices, is overuse syndrome, bad mechanism, muscle weakness and instability of balance. I think that the role of trainer, physical therapy, and team physician taking charge of the players' injury must learn physical test method by heart exactly to check up the state of the injury definitely at the initial phase. Moreover, when the cause of the injury part after a close examination is discovered, the scientific and good surgery is essential to the rehabilitation success and making a classification of shoulder instability is useful to make a operation plan as well as the players' rehabilitation, treatment.

• Journal of Preventive Medicine and Public Health
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• 제22권1호
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• pp.136-145
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• 1989

This study made a descriptive analysis of the cumulative amount and rate of sports medical care utilization during the 24th Seoul Olympic Games by the participating athletes, officials, etc. The sports medical care utilization was a component of the total medical care use and was basically caused by the prevention and treatment of sports injuries. The analytic data were derived from the Olympic Health Management Information System(OHMIS) of the SLOOC and the Korea Athlete Trainer Association(KATA). These were analyzed according to the quantity of physician visits and the utilization rate, which was the amount of utilization divided by the total number of participating persons. The results were as follows: Firstly, the sports medical care utilization by the persons participating in the Seoul Olympics amounted to 17.9% of the total medical care utilization. The venue medical services utilization accounted for 54.7% of the total physician visits, which was larger than the village medical center's utilization. The number of physician visits per hundred persons during the 2 week period in the venue clinic was 3.03 and that of the village medical center was 2.51, therefore, the total was 5.54. Secondly, athletes accounted for 82.3% and officials 12.2% in the sports medical care utilization by participants. These results were because athletes, who were directly related to the games, called extremely often on the physicians. The utilization rate of sports medical care by athletes was 34.29. Thirdly, the sports medical demand according to type of therapy could be ranked from high to low in the following order: sports massage, thermal therapy, and electrical stimulation treatment, etc. The department of physical therapy in the village medical center was used a great deal. Fourthly, the trend of daily sports medical care utilization by the athletes showed a bell shape centering around the opening day of the Seoul Olympic Games. The utilization rate of athletes was 2.3; however, that of officials was 0.6. Lastly, the sports medical demand was calculated according to the continents, and Central America, Africa and Middle-East Asia proved to have a higher rate of sports medical care utilization than the more powerful and industrialized continent or regions.

• Journal of Animal Science and Technology
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• 제51권2호
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• pp.129-134
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• 2009

본 연구는 1990년부터 2008년까지 서울경마공원과 부산 경마공원에서 활동한 경주마 13,458두의 총 245,979개의 경주관측기록을 이용하여 국내 더러브렛 경주마의 유전능력과 연도별 개량량을 분석하였다. 모든 관측치들의 주파기록을 1400m 경주거리에 맞추어 보정하고, 기수와 조교사에 대해 평균수득상금의 순위에 따라 번호를 부여하였으며, 후보 설명변수들에 대해 AIC, BIC를 사용한 단계적 변수 선발법을 적용하였다. 19년간 국내에서 활동한 경주마들의 주파기록에 대한 유전력과 반복력은 각각 0.322, 0.332로 추정되었고, 연평균 표현형 개량량과 유전적 개량량은 -0.166초, -0.161초로 산출되었다. 경주마의 유전모수와 개량량의 추정 연구에 있어 무엇보다 설명력 높은 개체모형의 수립이 중요하다고 생각되며, 이는 실제 경주마의 능력을 효과적으로 반영하는 반응변수의 설정과 통계학적 기법을 활용한 체계적인 설명변수의 선발을 통해 가능하다