• Journal of The Korean Digital Architecture Interior Association
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• v.9 no.3
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• pp.103-111
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• 2009

This study examined the arrangement features in public library infant and children's reading room and provide basic material in after children's reading room space planning by studying the space features, which are valued in the environment behavioral point of view. We limited the check list to libraries built after year 2000 that are located around Seoul and from 5 libraries with children reading rooms. After analyzing items by the space features, considering children's environment behavior, pleasantness was most favorable, children scale, safety, comfortableness, flexibility followed in order. It shows the basic surroundings and the furniture that composes the children's reading room are relatively favorable, but in the other hand, it seems that reading rooms lack the ability to form an environment that can adapt to children's growth, inducting new activity areas flexibly or rearrange them. there are limitations to getting the children's needs objectively and significantly, so survey research, interview research and not only studying Korean's but comparing and analyzing with foreign country's cases will be needed.

• Proceedings of the Korean Environmental Health Society Conference
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• 2002.04a
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• pp.6-8
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• 2002

Many adolescents stay long time in the PC game room and are exposed to much of tobacco smoke. To evaluate the effect of passive smoking in the PC game room, airborne nicotine concentrations and urinary cotinine concentrations were measured for 20 adolescents at 2 PC game rooms in Sung-nam city. And the subjects were interviewed for duration and time in PC game room and smoking pattern. Subjects are composed of each of 10 smokers(5 males and 5 females) and 10 non-smokers(5 males and 5 females). They stayed for three hours in the PC game room without smoking. Concentrations of nicotine in smokers and non-smokers were 129.72 $\mu\textrm{g}$/㎥ and 99.99 $\mu\textrm{g}$/㎥, respectively. Urinary cotinine concentrations were increased as time goes on after exposure to nicotine and showed maximum value at 9.45 hours after nicotine exposure and were 32.21 and 110.66 $\mu\textrm{g}$/L for non-smoker and smokers. Urinary cotinine has a tendency to be increased by passive smoking. Therefore, it is recommended that the effective control for indoor air quality and extensive research be needed to reduce nicotine concentration by passive smoking in the PC game room.

• Women's Health Nursing
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• v.22 no.1
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• pp.21-29
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• 2016

Purpose: This study aimed to develop supplementary material about the electronic fetal monitoring for nursing students, and to test the effects on electronic fetal monitoring related knowledge and confidence on nursing performance in delivery room. Methods: Totally 58 nursing students were recruited either experimental group (n=30) or a control group (n=28). A non-equivalent control group pretest-posttest design was employed to test the effects on fetal monitoring related knowledge and confidence on nursing performance in delivery room. The supplementary material about the electronic fetal monitoring was developed based on Analysis, Design, Development, Implement and Evaluation (ADDIE) model. Fetal monitoring related knowledge and confidence on nursing performance in delivery room were self-reported by the scales that author developed. Data were collected at pre-test and after the 6-week intervention. Results: There was significant difference in confidence on nursing performance in delivery room between two groups after intervention. Conclusion: These findings suggest the importance of the supplementary material about the electronic fetal monitoring for nursing students to improve confidence on nursing performance in delivery room.

• Korean Journal of Adult Nursing
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• v.19 no.1
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• pp.1-11
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• 2007

Purpose: To identify the effects of the aromatherapy on stress of nurses working in operating room. Methods: The study design was nonequivalent control-group pretest-posttest design. The subjects were 45 nurses working in the operating room. Experimental group were 24 nurses in G Hospital and control group were 21 nurses in U Hospital. All of the subjects were measured of the subjective stress, stress responses and the job stress. For aromatherapy, lavender, bergamot, and ylang were mixed in the ratio of 2 : 2 : 1. Results: 1) "The subjective stress of experimental group is lower than that of the control group" was supported (t=-2.70, p=.01). 2) "The stress responses of experi-mental group is lower than that of the control group" was supported (t=-2.49, p=.01). 3) "The job stress of experimental group is lower than that of the control group" was supported (t=-7.97, p=.00). Conclusion: This study suggested that such aroma inhalation method could be effective on stress of nurses working in operating room.

• Proceedings of the SAREK Conference
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• 2009.06a
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• pp.1306-1311
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• 2009

In recent semiconductor manufacturing clean rooms, in order to improve clean room air quality, air washers are used to remove airborne gaseous contaminants such as $NH_3$, SOx and organic gases from the outdoor air introduced into clean room. Meanwhile, there is a large amount of exhaust air from a clean room. From an energy conservation point of view, heat recovery is therefore useful for reducing the outdoor air conditioning load for a clean room. Therefore it is desirable to recover heat from the exhaust air and use it to reheat the outdoor air. In the present study, numerical analysis and experiment was conducted to simulate the amount of energy reduction of exhaust air heat recovery type air washer system. The present numerical results showed good agreement with the results of the experimental data.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.22 no.5
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• pp.429-436
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• 2012

In concert halls and auditoriums, acoustic reflector and stage enclosure is one of the main factors on the room and stage acoustic characteristics. As a stage enclosure and acoustic reflector honey comb based light-weight reflector is widely used, because it is easy to install. However, there was not enough research on the surface density effect on room and stage acoustics. In this study, sound absorption coefficient tests on three kinds of wooden acoustic reflectors with different surface density were conducted. Surface density of acoustic reflector was changed from 11 kg/$m^2$ to 41 kg/$m^2$. For the low frequency excitation, sub-woofer was used with omnidirectional loud-speaker simultaneously. From the experiments, it was found that sound absorption coefficient below 250 Hz band was decrease by the increment of surface density. In order to check the influence of the surface density on room and stage acoustic parameters, room acoustic simulation was conducted with sound absorption coefficients, which were tested in reverberation chamber. By the increment of surface density of acoustic reflector, RT(reverberation time) and EDT(early decay time) were increased. Also, ST(stage support) was improved in low frequency bands.

• Fire Science and Engineering
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• v.13 no.2
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• pp.3-11
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• 1999

New examination of a predictive model for the ISO 9705 room-corner test have been m made for materials studied by L S Fire Laboratories, Italy. The ISO 9705 test subjects wall a and ceiling mounted materials to a comer ignition source of 100 kW for a duration of 10 m minutes; if flashover does not occur this is followed by 300 kW for another 10 minutes. The m materials that did not stay in place during combustion because of melting, dripping, or d distorting were simulated by an adjustment to the material's total available energy. For m mat려als that remain in place the simulation model appears to do well in its prl어ictions. A l large-s떠Ie room test results 뾰 compar벼 with the m여el’s prediction also.

• Proceedings of the KIEE Conference
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• 2005.11a
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• pp.6-8
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• 2005

The optical and electrical properties of indium tin oxide (ITO) thin films deposited at room temperature can be substantially enhanced by adopting a two-step process. In the first step, the films (50 nm thick) were grown by pulsed laser deposition (PLD) on glass substrate at room temperature and quickly annealed at $400^{\circ}C$ in nitrogen ambient for 1 minute by using rapid thermal annealing method. The process was completed by additional deposition (150 nm thick) on annealed film at room temperature. High quality ITO films grown by two-step process at room temperature could be obtained with the resistivity of $3.02{\times}10^{-4}{\Omega}cm$, the carrier mobility of 32.07 $cm^2/Vs$, and the transparency above 90 % in visible region mainly due to the enhancement of the film crystallinity and the increase of grain size.

• Journal of the Korean Institute of Gas
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• v.12 no.1
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• pp.25-30
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• 2008

A Numerical study was carried out for a propane gas pool fire in the fire test room of $2.5m{\times}2.0m{\times}2.5m$ for testing a inert gas water mist system, to investigate a possible under-ventilation in the fire test room. For the fire sizes of 60 kW and 120 kW, changes in the temperature and CO concentration with and without a window were investigated. It was confirmed that the influence of the window on the distributions of temperature and CO concentration was small in the two fire sizes, and hence the under-ventilation was not occurred in the room.

• Korean Institute of Interior Design Journal
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• v.25 no.4
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• pp.13-22
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• 2016

With the change of the times, the hotel industry of modern city also becomes diversified. Especially the appearance of boutique hotels gives customers a new understanding of hotels. Boutique hotels are different from ordinary hotels which only provide accommodation. It provides customers with different experiences and innovation space of life style. Therefore, the appearance of boutique hotels could be considered as the mature performance of hotel industry. Therefore, the purpose of this research is to discuss the design features of guest rooms of boutique hotels. The methodologies of this research are to investigate the concept and characteristics of boutique hotels, to grasp the direction of the guest room design and to come to the conclusion using the method of case study. The scope of this research is based on the hotel design characteristics mentioned in preliminary studies of Korea and China (after 2010). The guest room design characteristics of boutique hotels are classified. The scope of the selected examples is the 20 boutique hotels opened in recent 5 years (newly opened or re-opened) since 2010, in which there are 2 Korean cases and 18 foreign cases. Chapter 4 classifies the guest room design characteristics of boutique hotels into four characteristics of hybrid, experiential, regional and environmental by literature review.