• The Korean Journal of Physiology
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• 제1권1호
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• pp.91-101
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• 1967

The maximal oxygen intake (MOI) was determined in 54 males (23 nonathletes, 10 basketball players, 8 hand ball players, 7 weight lifters and 6 long distance runners) and in 49 females (24 non-athletes, 16 basketball players and 9 volley ball players) by using a treadmill method outlined in Part I of the present investigation and the following results were obtained: (1) The maximal aerobic work capacity varied from the lowest value of 1,008 kg-m/min in female non-athletes to the highest value of approximately 2,000 kg-m/min in male basketball players and long distance runners. Values of other groups varied from 1,400 kg-m/min in male non-athletes and female athletes to 1,800 kg-m/min in male hand ball players. (2) The MOI per unit body weight varied from the lowest value of 41.3 ml/min/kg in female non-athletes to the highest value of 67.6 ml/min/kg in male long distance runners. Values of other groups were in the order of 47 to 55 ml/min/kg. (3) The heart rate during maximal aerobic work performance varied from the lowest value of approximately 180 per min in female basketball players and male long distance runners to the highest value of 190 or above in nonathletes of both sexes. (4) An estimate of oxygen debt as measured during 15 minutes following the maximal work was 3.841 in female non-athletes, 4.681 in female athletes, 5.561 in male non-athletes and 6.321 in male athletes. These results indicate that the MOI per unit body weight as well as the oxygen debt of Korean non-athletes were comparable to, while corresponding values of Korean athletes were considerably lower than, those of other countries such as Japan, the United States of America and Europe.

• 한국콘텐츠학회논문지
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• 제16권1호
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• pp.82-93
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• 2016

본 연구는 지역아동센터 종사자가 인지하는 전문적 능력이 사례관리자 역할수행에 미치는 영향을 살펴본 것으로, 지역아동센터에서 사례관리자의 전문적 능력을 향상시키고, 사례관리자의 역할을 원활히 수행할 수 있는 방안을 도출하고자 함에 그 목적이 있다. 이러한 연구 목적을 달성하기 위하여 부산과 경남에 위치하고 있는 지역아동센터 중에서 2년 이상 경력자 189명을 대상으로 조사 분석하였다. 연구결과, 사례관리자의 전문기술과 능력이 사례관리 역할 수행에 영향을 미치고 있으며 특히 종사자의 전문지식이 사례관리자 역할 수행에 미치는 영향에서 사회복지 가치가 조절효과가 있는 것으로 나타났다. 따라서 지역아동센터 종사자의 전문기술과 능력을 향상시킬 수 있는 차별화된 교육과, 전문적 능력 및 가치를 고려한 사례관리 매뉴얼 개발이 필요함을 제언하였다.

• 보건의료산업학회지
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• 제1권1호
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• pp.16-30
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• 2007

The point of this study is to analyze the difference between the outsourcing staff and the permanent staff. Also, to do a comparative analysis of the degree of understanding of the two groups with regards to elements of the major organization culture. The subjects of the study carne from 9 Catholic hospitals, the outsourcing staff being 198 and the permanent staff being 206. A survey was conducted with them, using SPSS 12.0 and carrying out t-test and ANOVA. A summary of the actual results of this analysis are as follows: Among the elements of organization culture (principles of understanding, practice, education, values, work environ) there appeared a high level of understanding among the permanent staff. As for satisfaction about the facilities, the outsourcing staffs' satisfaction level was higher. Second, the results of analyzing the effectiveness of the factors in job satisfaction and involvement - show that as the elements of education, values, work environ etc. were rated higher, job satisfaction came out higher. Contrary to that, job satisfaction was lower as the work hours lengthened. Through the results of the above study, education program for the outsourcing staff are helped to understand the hospital's special characteristics, unique philosophy and values. Therefore, it is needed the development of new techniques of management for the outsourcing staff; through setting up a department whose whole responsibility is the education and administration of the outsourcing staff, their job satisfaction and involvement will improve.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2009년도 추계학술발표논문집
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• pp.630-632
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• 2009

The parameters of PID controller should be readjusted whenever system character change. In spite of a rapid development of control theory, this work needs much time and effort of expert. In this paper, to resolve this defect, after the sample of parameters in the changeable limits of system character is obtained, these parametrs are used as desired values of back propagation learning algorithm, also neural network auto tuner for PID controller is proposed by determing the optimum structure of neural network. Simulation results demonstrate that auto-tuning proper to system character can work well.

• Journal of applied mathematics & informatics
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• 제40권3_4호
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• pp.515-530
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• 2022

A factor graph and belief propagation can be used for finding stochastic values of link weights in biological networks. However it is not easy to follow the process of use and so we presented the process with a toy network of three nodes in our prior work. We extend this work more generally and present numerical example for a network of 100 nodes.

• 한국철도학회논문집
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• 제13권3호
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• pp.264-270
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• 2010

본 연구에서는 역사 내 철도 안전 감시 시스템의 최적 디스플레이 설계를 위하여 생태학적 인터페이스 디자인(EID, Ecological Interface Design) 프레임웍을 적용하였다. 특히, EID 개발을 위한 가장 선행적 연구인 작업 영역 분석(WDA, Work Domain Analysis)을 실시하였다. 먼저 WDA를 위한 시스템 경계를 도시철도의 역사 내 안전 감시 시스템으로 설정하고, Abstraction Hierarchy (AH)를 이용하여 역무원의 작업 환경을 분석하였다. AH 결과 역무원이 작업 환경에서 얻게 되는 정보의 흐름을 다섯 단계의 수준(Functional Purpose, Values and Priority Measures, Purpose-related Functions, Object-related Process, Physical Object)으로 전개할 수 있었고, 각각의 수준의 정보로 이루어진 작업 영역 모델(WDM, Work Domain Model)을 얻었다. 이 WDM이 도시철도 안전 감시 시스템의 작업 환경을 얼마나 반영하는지 평가하기 위하여 10년 이상의 역무실 직무 경험이 있는 전문가를 대상으로 Scenario Mapping법을 실시하였다. 평가된 WDM을 바탕으로 현재 역사 내 안전 감시 시스템이 제공하고 있는 정보는 물론이고, 현재 안전 감시 시스템이 제공해주고 있지 못하는 13개의 요구 정보를 추가로 추출하였다. 이렇게 추출된 요구 정보는 도시철도 안전 감시 시스템의 EID에 반드시 반영되어야 할 필수적인 정보로 활용될 수 있다.

• Tribology and Lubricants
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• 제12권1호
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• pp.6-14
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• 1996

Experimental investigation on the tribological behavior of fiber-reinforced plastics(FRP) has been studied. It is shown that the frictional behavior of carbon FRP depends on the fiber-orientation while glass FRP does not. The friction coefficient values for carbon FRP were about 0.8, 0.3, and 0.2 for normal, 45$^{\circ}$ and 0$^{\circ}$ sliding directions respectively. Also, the applied load was found to affect the friction coefficient. In the case of this work, 50 gf resulted in the highest value while 200 gf resulted in the lowest value. The friction coefficients for higher loads fell in between the two extreme values.

• Journal of applied mathematics & informatics
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• 제33권3_4호
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• pp.305-315
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• 2015

Recently, Jianxin Liu, Hao Pan and Yong Zhang in [On the integral of the product of the Appell polynomials, Integral Transforms Spec. Funct. 25 (2014), no. 9, 680-685] established an explicit formula for the integral of the product of several Appell polynomials. Their work generalizes all the known results by previous authors on the integral of the product of Bernoulli and Euler polynomials. In this note, by using a special case of their formula for Euler polynomials, we shall provide several reciprocity relations between the special values of Tornheim's multiple series.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2001년도 춘계학술발표대회 개요집
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• pp.104-107
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• 2001

Creep-fatigue crack growth behavior at the heat affected zone of 1Cr-0.5Mo steel weldment has been experimentally studied. Load hold times of the tests for trapezoidal fatigue wave-shapes were varied among 0, 30, 300 and 3,600 seconds. Time-dependent crack growth rates were characterized by the $C_{t}$ estimated with the equation proposed by the previous finite element analysis work. It was concluded that the $C_{t}$ values calculated from the properties of parent metal were quite comparable to the accurate $C_{t}$ values calculated from both of weld and parent metals.etals.

• 한국국방경영분석학회지
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• 제9권2호
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• pp.45-55
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• 1983

Film data photographed by Motor Drive Camera were gathered and recorded in the FM Tape Recorder via computer-aided Location Analyzer and Voltage Generator. The recorded analogue data are converted into digital voltage values corresponding to the location of 14 landmarks by Analog-to-Digital Converter attached to digital computer. Using these converted values, the human motions were reproduced by CalComp Plotter and computer screen. This author concludes that any human motions can be analyzed by computer and we can find some methods of improvements of motions in work places, sports science, or operations of military equipments.