• Journal of the Korean housing association
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• v.24 no.3
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• pp.1-8
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• 2013

The University students learn their major or a general education in lecture rooms. In these days, lecturer use frequently various multimedia in lecture room. Appropriate control lighting environment in lecture room should be essential and related in efficient studying. Daylighting on front-side of lecture room will cause glare and students are hard to read contents on white-board at their seat. Therefore, in order to preventing glare we simulated daylighting of lecture room with using computer software in this study. Results from simulation and analysis as follows: The first, if students' left-side is east-oriented in lecture room, best daylighting condition about glare in lecture room. The second, architectural designers can use simulation data of daylighting or simulate data in designing university buildings with lecture rooms. Finally, if reducing size of windows (narrow and deep daylight: more closing vertically, from up to down daylighting: more closing horizontally) we will be able to reduce energy from lecture room.

• Journal of the Korean Society of Safety
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• v.36 no.1
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• pp.86-94
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• 2021

Lecture rooms are crowded with many attendees. Moreover, they rely significantly on the natural ventilation through windows for removing and controlling indoor contaminants such as CO₂. With the aim of broadening the understanding of the characteristics of natural ventilation phenomena in lecture rooms, the average individual CO₂ release rates of attendees were measured during the course of a lecture and compared with previously reported CO₂ release rates. In addition, the effects of natural ventilation through windows on the time-variant CO₂ concentrations in the center of the lecture room were measured and analyzed. Moreover, details about the overall and regional CO₂ concentrations, as well as the air flows in the lecture room, were simulated and analyzed with computational fluid dynamics software, Fluent 2020 R2. It was found that the average individual CO₂ release rates were slightly slower than previously reported rates. The local CO₂ concentrations in the lecture room for regions with a high density of attendees increased over a short period of time, although the natural ventilation was already started by opening the windows. The overall CO₂ concentration in the lecture room rapidly decreased in the early stage of ventilation, but declined very slowly after a longer period of ventilation time. Therefore, in order to enhance the efficiency of a lecture room's natural ventilation, it is recommended to homogeneously distribute the attendees in the lecture room, and to frequently open the windows for short periods of time.

• The Journal of Sustainable Design and Educational Environment Research
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• v.19 no.2
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• pp.21-31
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• 2020

The purpose of this study was to analyze the contents of the sound environment among the various environmental factors that directly or indirectly affect the quality of education through the remodeling of the small hall of the College of Humanities at W University. Before remodeling into a lecture room, the small hall of the College of Humanities at W University, which is the subject of this study, was designed to create an indoor sound environment suitable for a lecture room by recognizing differences in acoustic performance between the performance halls that require adequate sound quality and the lecture rooms where the clarity of voice is important. Therefore, this study aimed to present examples of improved acoustic performance in lecture rooms by remodeling through the stages of measuring acoustic performance before remodeling, presentation of a change in finishing materials through sound simulation, and measurement of sound performance after remodeling. It is expected that this process can be used as an example of securing indoor acoustic performance suitable for educational space, such as lecture rooms, by changing the finishing materials.

• Journal of Biomedical Engineering Research
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• v.39 no.6
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• pp.243-249
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• 2018

The indoor radon concentration was measured in the lecture room of the university and the radon concentration was converted to the amount related to the radon exposure using the dose conversion convention and compared with the reference levels for the radon concentration control. The effect of indoor radon inhalation was evaluated by estimating the life effective dose and the risk of exposure. To measure the radon concentration, measurements were made with a radon meter and a dedicated analysis Capture Ver. 5.5 program in a university lecture room from January to February 2018. The radon concentration measurement was carried out for 5 consecutive hours for 24 hours after keeping the airtight condition for 12 hours before the measurement. Radon exposure risk was calculated using the radon dose and dose conversion factor. Indoor radon concentration, radon exposure risk, and annual effective dose were found within the 95% confidence interval as the minimum and maximum boundary ranges. The radon concentration in the lecture room was $43.1-79.1Bq/m^3$, and the maximum boundary range within the 95% confidence interval was $77.7Bq/m^3$. The annual effective dose was estimated to be 0.20-0.36 mSv/y (mean 0.28 mSv/y). The life-time effective dose was estimated to be 0.66-1.18 mSv (mean $0.93{\pm}0.08mSv$). Life effective doses were estimated to be 0.88-0.99 mSv and radon exposure risk was estimated to be 12.4 out of 10.9 per 100,000. Radon concentration was measured, dose effective dose was evaluated using dose conversion convention, and degree of health hazard by indoor radon exposure was evaluated by predicting radon exposure risk using nominal hazard coefficient. It was concluded that indoor living environment could be applied to other specific exposure situations.

• Korean Journal of Adult Nursing
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• v.15 no.1
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• pp.105-115
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• 2003

Purpose: The research purposes analyzed the study participation and lecture evaluation of applicants in the cyber hospice specialist education course to find problems of nurse education application on the web. Method: Study participants were 125 nurses for participation and 68nurses for lecture evaluation. The data was analysed by descriptive statistics. Result: The results obtained from this study were as follows 1) The residence distribution of study participants was spread out across the nation. Equal distribution of education was accomplished without a difference among provinces. 2) The average study duration in the study participation was about one hour and a quarter minutes a week, and number of access to lecture notes was 65.8 times. But in a discussion room and a cooperative room, the system using rate was very low, so we considered the idea to come up with a more effective application way. 3) The participant's lecture evaluation of cyber education were generally satisfied about the quality of lecture, time, contents etc. Conclusion: This study shows the possible implication for nursing fields using a web-based learning program for reeducation in a variety of fields, so nursing cyber application can be considered to come up with this more effective method.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.17 no.11
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• pp.1079-1087
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• 2005

In this paper, thermal comfort and ventilation performance characteristics in the lecture room with the ventilation system and two different air-conditioning systems, system air-conditioner or fan coil unit, were evaluated by experimental and numerical methods. We compared the measured data with the computational results of the predicted mean vote and carbon dioxide concentration. Additionally the ventilation effectiveness was calculated numerically. From a viewpoint of the uniformity of PMVs in the lecture room, the thermal distribution performance of the system air-conditioner was more effective than the fan coil unit. Carbon dioxide concentration and ventilation effectiveness were barely affected by the type of the air-conditioning system.

• Journal of the Korean Institute of Educational Facilities
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• v.17 no.2
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• pp.13-22
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• 2010

This paper studies the program to estimate simultaneously the proper size and the number of lecture rooms by sizes in university when the curriculum has been fixed and the number of students present at a lecture class can be predicted. Proposed gradual forms can be applied according to several variables like basis size of lecture rooms, structural modules of the building and ratio of occupation of lecture rooms etc. The validity of proposed method is verified through the application of real case.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2007.05a
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• pp.715-719
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• 2007

Recently, since there appear the quality improvement in both educational and cultural level at the college campus also, thus the lecture room is requiring by the students where the intimacy degree among the students can be raised, also a smoother interaction between the professor and the student is able to be generated. Particularly in case of College of Music, the Practical Technique Training Rooms such as Orchestral Music Room, Pipe Music Concert Room, Music-Part Practice Room are more important for the interaction between Professor and Student or Student attends at the lesson, than the lecture rooms of any other colleges. Likewise, while such music practice room should be designed with consideration of the acoustic characteristics, so as to obtain the feel as if hear it performs at a music hall, but since the most of music practice room was designed with consideration of the convenience of construction work and its economical efficiency only, it has been exposed with many acoustic defects after the completion of construction. Therefore in this thesis, it has grasped the physical acoustic characteristics on the object of the two orchestral music rooms, pipe music concert room and ensemble practice room, among the newly constructed practice rooms of the Music College, W University, and it is considered that it could be utilized as the fundamental data on the base of this material when designing of the college music practice room, for the future.

• The Journal of Sustainable Design and Educational Environment Research
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• v.5 no.1
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• pp.1-10
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• 2006

The purpose of this study is to clarify the actual conditions of the use and the plan of lifelong education facilities in national university of industry. This article discuses about the basic characteristics of the plan composition and the education programs of 8 lifelong education facilities in national university of industry. The results of this study are summarized as follows; 1) Needed spaces should functionally designed considering that basic and culture lecture, occupation skill and expert education, hobby/amusement/leisure, health/sanitation/sports, tradition culture understanding education among education programs of lifelong education facilities in universities are mainly constituted and occupation skill and expert education among theses are occupied with the most ratio. 2) Expansion of facilities is agent considering the number of students and lectures to be 3.0% from 1.7% of average ratio of continuous dimensions lifelong education facilities of each universities and composition following scale of the lecture room is set by organizing the number of students per lecture to small groups.

• Journal of the Korean Institute of Rural Architecture
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• v.7 no.2
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• pp.64-73
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• 2005

The purpose of this study is to clarify the actual condition of the use and the plan of lifelong education facilities in national university of industry. This article discuses about the basic characteristics of the plan composition and the education programs of 8 lifelong education facilities in national university of industry. The results of this study are summarized as follows; 1) Needed spaces should functionally designed considering that basic and culture lecture, occupation skill and expert education, hobby/amusement/leisure, health/sanitation/sports, tradition culture understanding education among education programs of lifelong education facilities in universities are mainly constituted and occupation skill and expert education among theses are occupied with the most ratio. 2) Expansion of facilities is agent considering the number of students and lectures to be 3.6% from 1.7% of average ratio of continuous dimensions lifelong education facilities of each universities and composition following scale of the lecture room is set by organizing the number of students per lecture to small groups.