• Journal of the Korea Safety Management & Science
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• v.16 no.2
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• pp.167-174
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• 2014

Heating and air conditioning system is changing rapidly from the traditional HVAC central supply system to the individual supply system with electrical heat pump system (EHP) in Korean school buildings. The individual supply system has advantages to turn on and off individually and to adjust the thermal comfort separately, but energy is wasted in the unoccupied classroom when the last leaving occupant does not turn off the controller. If the controller is to be off automatically while the classroom is not in use, energy consumption would decrease dramatically. This project aims to cease the unnecessary EHP supply in vacant classroom by inputting the class schedule from the central control room to reduce the energy-spending. Experimental measurements were carried out between the controlled classroom that is turned off when not in use and the uncontrolled room that is turned on continually. Occupant's comfort and energy consumption were measured and compared between the controlled case and the uncontrolled case. The energy consumption of controlled classroom case is 30-60% less than that of the uncontrolled classroom case. This result shows that controlling the cooling supply for the unoccupied classroom using the class schedule can decrease the energy consumption remarkably. This supply control system can be used to conserve energy in school structures like universities.

• The Journal of Sustainable Design and Educational Environment Research
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• v.9 no.1
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• pp.41-51
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• 2010

It is high level of management activity for the fixed property of building to operating spaces for education in university campus. Therefore, this study is focused on definition of the factors for analyzing the actual conditions of space operation and application of them to C university campus in Gyeongbuk in the aspect of infrastructure of university and efficiency of space operation. These analytical factors are the rate of lecture and experimentation room, the rate of theoretical and experimental subject in curriculum and unit area for infrastructure and the rate of use, turnover rate and occupation rate per lecture for space operation. If the analytical factors of space operation are systemized as program module for space operation, the space management system of university campus will be characterized on the foundation of university information system. And it will be able to support the decision making about space management. It needs to integrate various type of information and data of university to increase the efficiency of decision making.

• Journal of Science Education
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• v.33 no.1
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• pp.152-163
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• 2009

This study aims to describe, explain, and understand the process of coteaching instruction in which two pre-service science teachers plan, perform, and reflect the instruction in a university lecture. Pre-service science teachers exchanged their perspectives on teaching, selected the learning model and the science content to teach, and prepared the teaching material together. They performed the coteaching using the lecture room effectively and exchanging the role of leading the instruction. The professor and other pre-service science teachers participated to the coteaching instruction directly or indirectly with the role of students or lesson critics, and shared the evaluation and reflection on the instruction. We discussed the meaning and implication of the coteaching instruction on the secondary education field, the science teacher education, and the science education.

• Korean Institute of Interior Design Journal
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• v.23 no.2
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• pp.174-181
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• 2014

The purpose of the study for this thesis is to look into the status and issues of government office buildings since the self-government policy through comparing and analyzing government office buildings, between domestically and to provide improvement plans of the citizen cultural space and with the self-government budget, enhance the utility and efficiency of the government office buildings and to take a role of a reference in the future when citizen cultural space is formed in the government office buildings. As the result of the study, the space planning characteristics of government office building's citizen cultural space in terms of cultural administration is as follows. First, percentage of room to strengthen the sense of community is small. Therefore, the place where residents can argue there is a need. Second, it is necessary to expand the venue and art collection that are missing in public government buildings. Third, since the lecture room for lack of civic education, it should be taken into account when making cultural space for the citizens. Fourth, thread observatory and souvenir shops, providing information is not enough, it is to be further expanded. Fifth, rented facility for public is hall be provided with a diversity.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2007.11a
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• pp.216-220
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• 2007

By virtue of recent economic development and cultural progress, the desires willing to enjoy a plentiful leisure life among people are on enlarging, then according to this, the demand for a grand performance hall where various cultural events are achievable is also on increasing. However, since the grand performance hall has its characteristics that must accommodate various forms of performances likely from lecture, meeting activity to recital, and because the clearness of sound is on emphasizing, and also it requires the repletion or abundance of sound simultaneously, it could be said that from the designing stage, a sufficient examination and plan with regard to the architectural acoustics design is indispensable. On such view point, for the object of the grand performance hall under actually planning to build, this Study is attempting to compare analyze on Room Acoustics Characteristics using computer simulation from the stage of design. It is considered that the material analyzed in such way could be reflected in maximum basis to the design of the performance hall that minimizes the acoustic defect at the designing step, and also it could be utilized as the useful material at the time of design for a similar form of performance hall in the future.

• The Journal of the Acoustical Society of Korea
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• v.28 no.2E
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• pp.60-65
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• 2009

The present study aims to investigate the effects of sound diffusers and absorbers on the sound clarity in classrooms. In order to do this, computer simulations were carried out to find the effective area of treatment which could enhance the sound clarity in the room. Acoustic measurements were undertaken in a lecture room with several conditions changing the surface of walls and ceilings with diffusers and absorbers. Diffusion and absorption treatments were applied to the side walls, rear wall and the ceiling of the classroom. SPL, RT, D50, RASTI were measured at 9 measurement points with one sound source and MLS was used as the sound source signal. The results show that higher sound clarity was obtained when diffusers were applied to rear walls and ceiling rather than side walls. Also, it was confirmed that absorption increased sound clarity more effectively with smaller amount in comparison with diffusers. It was also concluded that the effects of sound diffusers and absorbers on the sound clarity could be obtained distinctly at the rear area of the classroom.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.2241_2242
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• 2009

본 논문은 강의실 조명설계로 2/40W FL${\times}$9와 2/25W LED FL${\times}$12를 Relux 2007를 이용하여 모델링을 통한 시뮬레이션을 측정 하였으며, 두 램프를 비교 분석하여 가장 이상적인 조명기구 및 조도 값을 알아본다. 이 시뮬레이션 결과 2/40W FL${\times}$9의 경우가 2/25W LED FL${\times}$12를 사용했을 때 보다 조도와 균제도가 높게 측정되었고, 소비전력은 2/25W LED FL${\times}$12 매입했을 때가 낮게 나왔다. 금후 LED 형광등 조명설계에 있어서 도움을 줄 수 있을 것으로 기대된다.

• The Journal of Sustainable Design and Educational Environment Research
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• v.6 no.1
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• pp.49-59
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• 2007

The purpose of this study is to propose the type and size of space which is changed working plan as comparison with basic plan. It has been compared basic plan with working plan of 12 educational facilities which was designed basic plan by a professional research organization of educational facilities. The results of this study are summarized as follows; 1) The gross area of elementary school is decreased a course of working plan. But, the meddle and high school's gross area is increased. 2) It was downed 69.28 percent by the area of classroom at the primary school. At the meddle school, 3rd classroom's area increased by 22.65 percent, while 4th classroom's area down 33.98 percent. In case of high school, the area of 4th classroom and public lecture room increased by each 28.23 and 23.17 percent.

• Journal of Korean Clinical Health Science
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• v.4 no.2
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• pp.566-570
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• 2016

Purpose. The purpose of this study was to determine the using state of computers and internet in university students. Method. This research conducts a survey of 50 university students. Researcher personally visited lecture room to explain the purpose of research. The questionnaire was made by the researcher and consists of seven questions. Result. In this study, university students of 74% using computer more than one hour per day. The most of purpose of internet use was internet surfing and writing a document. University students of 42% were play games with internet. Conclusion. The continuous tracking is need of computer and internet use and need to be healthy for the use of guidance of university students.

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.13 no.2
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• pp.139-139
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• 1999

In this paper, the result of study in artificial lighting uniformity ratio yield method subject to lecture room are reported. It is desirable that the application of equation ① U=Ei/Ex×100 cannot be used to the mean value in place to be effective of light and darkness. And it is desirable that the application of equation ② U=Ei/Ea×100 or equation ③ U=(Ea-Ei)/Ea×100 be used to the mean Value equality illumination conditions. Also, requiring preparation of judgement standard, uniformity ratio equation agree with actual circumstances in this country. It must be considered intensity of illumination and specificity of space in established standard.