• 한국과학교육학회지
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• 제40권1호
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• pp.89-96
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• 2020

본 연구에서는 현행 중등 과학과 교사임용시험의 2차 교과교육학 시험의 특징과 개선 방안을 탐구하였다. 임용시험 2차 교과교육학 시험인 교수학습지도안 작성 평가, 수업실연 평가, 교직적성 심층면접 평가, 과학실험시험 등을 중심으로 1차 지필시험과 차별화하면서 2차 실습형 과학교육학 시험의 개선 방안을 탐색하였다. 주요 연구결과로는 교수학습지도안 평가의 경우 1차 지필시험과는 평가초점이 달라서 2차 교수학습지도안 시험을 유지하되, 교수학습지도안 작성의 배점을 줄이고 수업실연의 비중을 높이는 방안 등을 제안하였다. 수업실연 평가의 경우 교사양성과정에서 수업실연을 학점화하여 임용시험에 반영하는 방안, 교육실습이나 실제 수업 상황에서 평가하는 방안, 교과 수업전문성에 초점을 두고 수업실연을 평가할 필요성 등을 제안하였다. 과학실험시험의 경우 모든 시·도교육청에서 과학실험시험을 필수화하고, 실험설계 능력과 실험기반 과학탐구 지도 능력 등을 평가할 필요성 등을 제안하였다. 연구결과를 토대로 수업실연이나 심층면접 등을 시·도교육청에서 자체 출제하는 방안, 수습교사제도 도입의 필요성, 교육전문대학원 도입 방안 등을 제언하였다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 춘계학술발표회
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• pp.1154-1155
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• 2005

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2009년도 춘계학술발표대회 논문집
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• pp.203-208
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• 2009

This paper presents demonstration study results derived through field testing of a solar assisted cooling and heating system for the library of a cultural center building located in Gwangju, Korea. The area of demanded cooling and heating for building was about 350m2. Solar hot water was delivered by means of a 200m2 array of evacuated tubular solar collector (ETSC) to drive a single-effect (LiBr/H2O) absorption chiller of 10RT nominal cooling capacity. From March in 2008 to February in 2009, demonstration test were performed for solar cooling and heating system. After experiments and analysis, this study found that solar thermal system was 84% for the solar hot water supply and 12% for space heating and 4% for space cooling.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 하계학술대회 논문집 F
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• pp.2641-2643
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• 1999

This paper describes the first field demonstration of the distribution STATCON in Korea including installation and its evaluation for improving power quality in distribution system. The purpose of installation is to verify functionally the voltage source inverter based equipment for voltage regulation and harmonic mitigation in distribution line. The operational data resulting from field test and the site figure are included.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.1438-1441
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• 2003

The project for "Development of Advanced Spent Fuel Management Technology" has a plan of a demonstration for the Advanced Management Process in the hot cell of IMEF. The Advanced Management Process are being developed for efficient and safe management of spent fuels. For the demonstration, several devices which are used to safely transport and handle nuclear materials without scattering have been derived by analyzing the Advanced Management Process, object nuclear material and modules of process equipment and performing graphical simulation of transportation/handling by computers. For verification, powder transportation vessel and handling device have been designed and manufactured. And several tests such as transporting, grappling, rotating the vessel have been performed. Also, the design requirements of transportation/handling equipment have been analyzed based on test results and process studies. The developed design requirements in this research will be used as the design data for the Advanced Management Process.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2007년도 추계학술대회 논문집
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• pp.246-249
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• 2007

The application of photovoltaics into building as integrated building components has been paid more attention worldwide. Photovoltaics or solar electric modules are sol id state devices, directly converting solar radiation into electricity; the process does not require fuel and any moving parts, and produce no pollutants. And the prefab building method is very effective because the pre- manufactured building components is simply assembled to making up buildings in the construction fields especially the sandwich panel. So, this paper describes a design and performance test of the 10kW poly metal pv module(pmpp) system. It is concluded that the prediction of BIPV system's performance should be based on the more accurate PV module installation.

• 기본간호학회지
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• 제18권2호
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• pp.237-246
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• 2011

Purpose: Family-caregivers of stroke patients usually go through hardship and life style changes during the protracted course of a family member's rehabilitation. There is need for programs to educate family-caregivers to better manage the medical crisis. In this study an evaluation was done of the degrees of burden and well-being experienced by primary family-caregivers following video-guided education (VGE) on rehabilitation and family lifestyle changes. Method: Fifty-eight primary family-caregivers of stroke patients on a neurological ward were divided into VGE (29) and control (29) groups. VGE was started within 7 days of patient admission. Interventions included VGE, counseling, and demonstration - re-demonstration. The control group received standard education but not VGE. Data were analyzed using Chi-square test, t-test, ANCOVA, and Pearson correlation coefficients with the SAS program. Results: The VGE group had a significantly lower score for total burden (F=7.19, p=.010) and for sub-scale of time-dependent burden (F=8.44, p=.005) than the control group. There was a negative correlation between primary family-caregiver burden and well-being (r=-.7151, p<.001). Conclusion: Results suggest that the rehabilitation program using VGE was an effective nursing intervention to reduce the burden of primary family-caregivers of stroke patients.

• 한국태양에너지학회 논문집
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• 제36권2호
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• pp.53-63
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• 2016

Building Integrated Photovoltaic (BIPV) is one of the best ways to generate electric power using the solar energy, which is clean and inexhaustible energy resources. The most of BIPV modules have the form of GtoG (Glass to Glass) photovoltaic in building applications. Degradation leading to failure in photovoltaic modules is very important factor in BIPV modules. This paper analyzed the performance of various BIPV modules through outdoor exposure tests. Performance of three BIPV modules(c-Si type, a-Si type and DSSC type) with three installation angles influenced by sun light, outdoor temperature, and wind velocity was monitored and analyzed. As a result, c-Si type BIPV module outperforms other BIPV modules(a-Si type). In terms of power efficiency of the module, the installed angle of $45^{\circ}$ is better than others(90 degree, 0 degree). In addition, more realistic data of various BIPV system performance could be available through the field test and integrated building test. In this study, relationship of the BIPV system is identified module's installation angle, power generation, architectural performance, etc.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2009년도 제33회 추계학술대회논문집
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• pp.225-228
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• 2009

추력 75톤급 액체로켓엔진용 기술개발/검증 시제인 가스발생기의 연소시험이 수행되었다. 가스발생기 분사기 및 헤드의 성능을 먼저 확인하기 위해 heat-sink 형태의 연소실이 사용되었다. 본 논문에서는 연소시험을 위한 준비상황 및 기술검증시제 연소시험에서 얻어진 압력, 온도 분포, 압력 섭동 등의 결과들을 설명하였다.

• Nuclear Engineering and Technology
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• 제41권3호
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• pp.307-318
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• 2009

KAERI (Korea Atomic Energy Research Institute) has developed the GAMMA+ code for a thermo-fluid and safety analysis of a VHTR (Very High Temperature Gas-Cooled Reactor). A key safety issue of the VHTR design is to demonstrate its inherent safety features for an automatic reactor power trip and power stabilization during an anticipated transient without scram (ATWS) accident such as a loss of forced cooling by a trip of the helium circulator (LOFC) or a reactivity insertion by a control rod withdrawal (CRW). This paper intends to show the ATWS assessment capability of the GAMMA+ code which can simulate the reactor power response by solving the point-kinetic equations with six-group delayed neutrons, by considering the reactivity changes due to the effects of a core temperature variation, xenon transients, and reactivity insertions. The present benchmark calculations are performed by using the safety demonstration experiments of the 10 MW high temperature gas cooled-test module (HTR-10) in China. The calculation results of the power response transients and the solid core temperature behavior are compared with the experimental data of a LOFC ATWS test and two CRW ATWS tests by using a 1mk-control rod and a 5mk-control rod, respectively. The GAMMA+ code predicts the power response transients very well for the LOFC and CRW ATWS tests in HTR-10.