• 가족자원경영과 정책
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• 제11권4호
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• pp.93-114
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• 2007

The purpose of this study was to analyze the educational program that is offered on the information menu in the homepage (Familynet) of the Healthy Family-Support Center (HFSC) and suggest developmental directions. For this purpose, first, it deduced that the managerial principles of the education program, from related theories, are included in the family-system, family-structure, family-structure analysis, family life-cycle and ecological system theories. Second, it analyzed the educational programs of 44 local centers that are connected to the homepage (familynet.or.kr) of HFSC. Finally, it suggested developmental directions for managerial improvements of educational programs. As a result, the most popular part in the educational program was parent education, especially the visiting-father education program. The number of couple-related education programs were fewer than those for parent education, because it is difficult for couples to be present at the same time. Family and Self-Cognition programs cover insufficient contents in the parent-education program. Though total program in familylife education is quite large, the number of programs in each separate part is far too small for such a wide subject. So, each part in the program should be made more sufficient. Finally, it suggested the development of an evaluation system and a coaching process as special services for families that are in different development stages and have different family experiences, resources, needs and goals.

• 대한의용생체공학회:의공학회지
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• 제22권5호
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• pp.449-458
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• 2001

한국형 양심실 보조 인공 심장의 효율 측정 방법과 측정 결과이다. 한국형 양심실 보조 인공 심장은 에너지 변환기로 브러시 없는 직류 모터를 사용한다 이 브러시 없는 직류 모터가 기어 열을 따라 원추운동을 하며 혈액주머니에 힘을 가하게 되고. 이 힘에 의해 혈액주머니 안의 혈액이 박출하게 된다. 효율 측정을 위하여 제어기 및 모터부, 기어부 및 작동기부. 혈액주머니 및 기타부 등 크게 세 부분으로 나누었으며. 각각을 다시 소자별로 나누어 입. 출력의 효율을 측정했다. 부하의 토크, 분당 회전수 각속도, 인가되는 전압 등을 바꾸어 가면서 시스템의 효율을 측정했고. 이 측정을 통해서 모터 운동시의 전체적인 효율과 부분별 효율을 알 수 있었다. 특히 양심실 보조 장치의 모터부와 작동기부의 효율측정에 중점을 두었다. 측정 결과 이동 작동기형 양심실 보조 장치의 평균 동작 영역인 4$\ell/min$ 박출량에서, 전체 효율은 8 %정도이며 구체적으로는 모터부 50 %, 작동기부 85 % 혈액주머니부 19 %정도의 효율을 보였다. 또한 6$\ell/min$ 박출량의 경우, 전체 효율은 5.5 %정도였다. 분석된 결과를 바탕으로 효율을 개선하기 위해 박출량에 따른 필요 구동 전압을 결정하고. 혈액주머니의 충만 상태에 따른 속도 파형을 연구. 제안하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 A
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• pp.464-466
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• 2001

In this paper, we developed the on-line Data Aquisition System(DAS) of distribution transformers using the hardware and monitoring program. The DAS consists of the top oil temperature sensing part, ambient temperature sensing part, load current sensing part, acoustic emission peak-value sensing part, acoustic emission pulse counter part, micro-processor part and wireless communication part. The Monitoring System consists of the communication setting, online monitoring and database construction part. The DAS send the data acquired from the some sensors of the distribution transformers to the host PC. The monitoring program of the host PC stores the data to database. And the monitoring system estimates the loss of life time for distribution transformer from the DB. Thus, it could be managed the career and the functional lifetime of the transformer more efficiently than existing methodologies.

• 산업경영시스템학회지
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• 제16권27호
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• pp.43-49
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• 1993

The purpose of this study is to develope a computer-generated work measurement system for creating and maintaining standard data as well as labor standards applying MODAPTS(Modular Arrangement of Predetermined Time Standards) technique. The system consists of three major parts. The first part is a work measurement program applying MODAPTS technique for work standards. The second part is a work scheduling program which calculate each operator's machine and job allocations, operation and load schedules, wage and wage incentives and direct labor costs etc. The last part is the case study application program for R-Instrument Manufacturing Industry. The whole system is programmed by dbase-Ⅲ and by pop-up mu for IBM PC compatibles.

• 산업공학
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• 제1권1호
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• pp.63-72
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• 1988

Since many small and medium sized enterprises in Korea have lack of funds to install a commercial computer packages for work standards and work scheduling. This study has been attempted to develop the computer-generated package to ease those problems. The system consisted of three major parts. The first part is a work measurement program applying W.F.(work factor) predetermined time standards for work standards. The second part is a work scheduling program which calculates each operator's machine and job allocation. The last part is a control program for the production outputs and the machine utilization monitoring. The system is programmed by dBASE III for the IBM-PC compatibles for the sake of user's conveniences.

• 대한기계학회논문집
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• 제14권6호
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• pp.1542-1551
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• 1990

본 연구에서는 직경오차를 최종 다듬질 가공 직전에 선반의 주축 정지 상태에 서 공구대에 부착시킨 전기마이크로미터로 측정하는 방법을 이용하여, 어떠한 공작물 형상에 대해서도 오차 측정경로를 NC 프로그램으로 자동 생성하고 이를 이용하여 직경 오차를 측정, 보정하는 알고리즘을 제안함과 동시에 수정된 최종 다듬질 가공용 NC프 로그램을 자동적으로 생성하는 시스템을 개발하고자 한다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1987년도 한국자동제어학술회의논문집; 한국과학기술대학, 충남; 16-17 Oct. 1987
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• pp.269-272
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• 1987

This paper is concerned on kinematic analysis and simulation of an automatic feeding mechanism subjected by the motion of a curvilinear inverse cam. The main objection is the development of computer-aided design (CAD) program for simulating the motion of the cam-feeding mechanism using computer-graphics. A computer program CACAFS (Computer-Aided Cam and Automatic Feeding System) is independent of computer hardware used. The program is also interactive using a menu-selection technique. As the second part of the paper for the motion simulation of the cam-feeding system, this paper discusses the state-of-art for CAD. The first part of the paper presents the algorithm to simulate the notion of the cam-feeding mechanism.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2004년도 추계학술대회 논문집
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• pp.277-282
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• 2004

A Study traditional folk house and primary factor from investigation of Wang-Gok villages space composition program which is contains regional color, economy, rationality. From that's all, Analysis the effect of modern life style to folk house space pattern change and a primary factor of northern traditional fork house type of Korea. 1. Analysis and arrangement space composition structure about natural${\cdot}$geographical${\cdot}$cultural environment. 2. Examination existing commoner's house research by a region, space program for understanding house pattern, specially double rows which are partitioned by walls in northern part of Young-Dong region. 3. Analysis folk house character and object house information. by the way, Investigation changing of commoner's house space program with modem life style.

• 센서학회지
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• 제13권6호
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• pp.462-472
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• 2004

In this study, we measured the blood flow on arm by non-invasive method and implemented a system to measure variation of the blood flow by estimating bio-electrical impedance and arterial pressure according to cuff pressure. The implemented system measured impedance variation according to pressure variation applied by artificial cuff pressure on the measuring position. The system consisted of pressure measuring part and impedance measuring part using 4-electrode method. Pressure measuring part was composed of semiconductor pressure sensor and electronic circuit for signal processing of sensor output signal. In addition, impedance measuring part was composed of constant current source circuit and lock-in amplifier for detecting impedance signal. We conducted experiments of impedance measuring part using standard resistance for performance evaluation of the implemented system. In addition we experimented to estimate variation of the blood flow by measuring impedances of the experimental group. We estimated ratio of the blood flow resistance using mean arterial pressure and variation of the blood flow. As a result the ratio of the blood flow resistance and variation of blood flow were in an inverse relationship with each other and the correlation coefficient was -0.96776.

• Geomechanics and Engineering
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• 제6권6호
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• pp.517-530
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• 2014

Seismic ground response analysis is one of the most important issues in geotechnical earthquake engineering. Conventional seismic site response and free field analysis of layered soils does not consider the effect of surcharge mass which may be present on the top layer. Surcharge mass may develop extra inertial force to the soil and, hence, significantly affect on the results of seismic ground response analysis. Methods of analysis of ground response may also be categorized into time domain and frequency domain concepts. Simplicity in developing analytical relations and accuracy in considering soil dynamic properties dependency to loading frequency are benefits of frequency domain analysis. In this part of the paper, seismic ground response is analyzed using transfer function method for soil layers considering surcharge mass on the top layer. Equation of motion, wave equation, is solved using amended boundary conditions which effectively take the impact of surcharge mass into account. A computer program is developed by MATLAB software based on the solution method developed for wave equation. Layered soils subjected to earthquake loading were numerically studied and solved especially by the computer program developed in this research. Results obtained were compared with those given by DEEP SOIL computer program. Such comparison showed the accuracy of the program developed in this study. Also in this part, the effects of geometrical and mechanical properties of soil layers and especially the impact of surcharge mass on transfer function are investigated using the current approach and the program developed. The efficiency and accuracy of the method developed here is shown through some worked examples and through comparison of the results obtained here with those given by other approaches. Discussions on the results obtained are presented throughout in this part.