• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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• pp.298-306
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• 1993

A portable torque and power measurement system for small farm equipment based on instrumented pulley was developed. The prototype pulley was machined from mild steel, with spokes serving as strain beams. Strain gages mounted to the spokes sense the bending strain due to the torque and convert this into millivolt output. Calibration results showed the torque-millivolt relationship was linear, while hysterisis and error were less than 1% fs. For power measurements, an additional tachmeter with dcvoltage output is necessary. With the tachometer , error in power measurement was +-1.03W or 0.2% fs. Field tests showed that for ease of installation, no machine alteration needed and safety, this system had advantage over other methods for small farm equipment.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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• pp.307-315
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• 1993

A direct draft measurement system was developed based on the swingle tree- the rear component of the single-animal harnessing (or yoking) system . The prototype was made from a tube, on which four strain gages were attached. The pull of the draft animal through the flexible pull chains or ropes causes the beam to bend, The bending strain is sensed by the strain gages and the bridge converts this to a voltage signal. Counterweights keep the tube correctly oriented if the angle of pull changes , while end bearing follow the variations in the angle of pull. Hence, the voltage output is proportional to the draft. the device has highly linear response, acceptable sensitivity negligible error and hysteresis. It is suitable for electronic data acquisition, non-intrusive , easy to attach and detach and is reasonably priced.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 1998년도 공동 심포지엄 및 추계학술발표회
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• pp.81-85
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• 1998

In the present study, the design method of containment walls is proposed by utilizing an existing site. The selected remedy for the Source Area of Operable Unit 2 at Hill Air Force Base stipulated containment of the pure-phase trichloroethylene contamination. The in-place-mixed wall construction was selected because of the irregular topography, small area of the site, and the requirement to reach depths of greater than 90 feet below ground surface. Bench-scale compatibility studies were performed for the containment wall mix design on three commercial bentonite clays. The samples were subject to screening tests and long-term tests for evaluation of changed soil properties when exposed to the contaminated groundwater.

• Clinical and Experimental Reproductive Medicine
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• 제10권1호
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• pp.1-6
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• 1983

Women were used as their own controls in the comparison of presterilization and poststerilization menstrual patterns. Five parameters were studied: regularity of cycle length, duration and amount of flow and incidence of dysmenorrhea and intermenstrual bleeding. Three parameters in the electrocoagulation group (regularity of cycle length and duration and amount of flow) and one parameter in the tubal ring group (duration of flow) showed significant changes after sterilization. However, by controlling for the effect of previous contraceptive methods used, no significant menstrual pattern changes following sterilization were discerned in either technique group.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 2001년도 추계 학술발표회 논문집 Proceedings of EESK Conference-Fall 2001
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• pp.75-82
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• 2001

A dynamic interaction analysis of an adjacent surface fecundation on a layered half-space is performed in the frequency domain. A semi-analytical approach is employed to reduce the integration range of the wavenumber in the surface fundamental solution for a layered half-space in boundary element (BE) formulations. The present study then adopts a combined boundary and finite element method to analyze the dynamic behavior of a system of flexible surface foundations on an elastic homogeneous and layered half-space. Numerical examples are presented to demonstrate the accuracy of the developed method. The examples show the feasibility of an extended application fur the complicated dynamic interaction of foundations on layered media.

• 융합보안논문지
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• 제19권3호
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• pp.81-86
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• 2019

본 연구는 4차 산업혁명 기술로 구현하는 실버케어에 대한 동향을 소개하고, 관련 문헌을 고찰하여 노인건강과 재활을 위한 디지털 기술 활용을 기술함으로서 향후 디지털 기반의 실버케어 상용화 가능성을 살펴보고 나아갈 방향을 제시하고자 한다. 노인들의 일상생활에서 겪을 수 있는 활동장애나 건강상의 문제를 관리하는데 도움이 되는 에브리데이 테크놀러지(Everyday Technology)를 활용한 건강관리와 재활을 위한 실버케어로는 첫째, 자신이 살던 집에서 독립생활이 가능하도록 보조하는 디지털기술이나 IT기술을 통해 가능한 스마트 주거 서비스인 건강지원 스마트 홈(Health smart home)을 들 수 있다. 둘째, 인공지능과 로봇을 활용한 기술 서비스를 들 수 있는데, 고도화된 지능에 기반한 로봇은 노인들의 일상생활을 보조하고, 건강상태를 체크하며, 양질의 의료 관리를 가능하게 하는 서비스를 지원하여 노인들의 건강과 재활을 위한 보조역할이 가능하다. 이들 실버케어의 상용화를 위해서는 노인의 신체적 능력과 건강상태 등 현재 상황에 맞는 정보와 서비스가 제공되어야 하며, 디지털 소외계층인 노인들이 불편함을 느끼지 않도록 실사용 노인들의 요구를 반영한 필수적인 기술 활용을 시작으로 점차 확대시켜 나가는 것이 바람직할 것이다.

• 한국지반공학회논문집
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• 제16권3호
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• pp.89-89
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• 2000

The shear behavior of any interface is a function of the fundamental properties of both materials at the interface. This study aimed at investigating the effect of planar surface roughness on the stress-horizontal displacement curve at theinterfaces composed of various geomembrane textures and granular materials. In addition, the extent of surfacialscarring on smooth geomembranes against granular materials during shearing induced by plowing effect was studied. It wasobserved that the displacements required to achieve peak and residual interface resistance, and the stress-displacementcurve at the interface vary greatly with the surface roughness of geomembrane. Quantification of surface roughnessvariations on smooth geomembrane due to plowing effect showed that the surfacial scarring during shearing by the soilparticles is directly related to both the normal stress and the angularity of the soil particles at the interface. The findingsof this study can be used to provide the useful information for the design and selection of counterface materials.

• Perspectives in Nursing Science
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• 제4권1호
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• pp.19-25
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• 2007

Systems and processes to provide clinical education to students of nursing have been established between universities and health facilities in all countries where nurse education is tertiary based. However, systems and processes to link nurse researchers based in universities to their clinical colleagues are less well developed. When collaborations are established they are frequently based on personal networks, and while the rhetoric of the organizations encourages these collaborations, they are largely unrecognised by senior administrators in health facilities. The research is frequently "invisible" and the clinician researchers usually do not have access to appropriate infrastructure and other resources that are required to support large projects that have the potential to change practice across organisations. This situation influences the focus and scope of nursing research and limits opportunities for clinicians to be engaged in the generation of professional knowledge. The University of Western Sydney (UWS) has taken a strategic approach to the development of collaborations for research and has linked with health services in Western Sydney to establish and maintain research centres and adjunct appointments. The partner organisations jointly fund the infrastructure of the centres which include a Professor, research assistant position(s) and administrative staff. Five Professors of Nursing have been appointed to positions in one of three nursing research centres. This paper describes the approach established by the School of Nursing at UWS to build collaborations with clinical areas to promote research. This approach could be adopted or adapted by other facilities.

• 한국수자원학회논문집
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• 제32권6호
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• pp.675-683
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• 1999

본 연구에서는 선반지형의 크기에 따른 파랑 반사율의 변화를 이론적으로 계산하였다. 수심이 급변함에 따라 발생하는 파랑의 회절을 고유함수 전개법을 이용하여 나타냈다. 반사율에는 진행파뿐만 아니라 소멸파도 고려하였으며, 파랑의 반사율에서 소멸파의 역할을 중점적으로 연구하였다. 직각으로 입사하는 파랑뿐만 아니라 경사지게 입사하는 파랑의 반사율을 산정하였으며, 파랑에너지의 보존을 검사하여 반사율의 정확성을 검증하였다.

• 한국보육지원학회지
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• 제8권6호
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• pp.219-239
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• 2012

본 연구의 목적은 유아의 이미지에 대한 예비유아교사의 인식 및 변화를 분석하는 것이다. 연구대상은 4년제 대학 유아교육과 학생 31명으로 4년 동안 이루어진 장기연구이다. 연구대상자들에게 1학년 때와 4학년 때(동일인), '유아는 - - 이다'라는 질문과 이미지 변화의 요인을 질문하였다. 수집된 자료는 내용분석과 빈도분석을 실시하였다. 분석결과, 첫째 1학년 때는 활력소 같은 존재의 이미지, 외부환경에 반응하는 존재의 이미지, 개성이 다양한 존재의 이미지, 사랑과 정성이 필요한 존재의 이미지로 분석 되었다. 4학년 때는 1학년 때의 활력소 같은 존재의 이미지, 개성이 다양한 존재의 이미지 외에 환경과의 상호작용에 의해 변할 수 있는 존재의 이미지, 유아 자신이 목적인 존재의 이미지가 추가되었다. 둘째, 유아에 대한 이미지 변화에 영향을 준 요인은 유아교육 기관에서의 보조교사, 실습(교육/보육), 수업이었다. 따라서 유아교사 양성과정에서 아동중심에 대한 합의된 개념과 보조교사 제도를 체계화하는 작업이 이루어져야 한다.