• The Research Journal of the Costume Culture
• /
• v.8 no.3
• /
• pp.374-386
• /
• 2000

This study investigated the relation between seasonal variation of total clothing weight, room, outdoor temperature and basal metabolic rate in man. The basal metabolic rate and total clothing weight, room temperature was determined seasonal for a period of two years and grouped four seasons. Subjects (adults volunteers) who live in seoul and mokpo were compose 120 subject The results were obtained as follows. Seasonal outdoor temperature was difference of seoul and. mokpo. But room temperature in apartments was a little difference than private house. Total-clothing weight is showed seasonal variations at the seoul, private house than at the mokpo, apartment.. The basal metabolic rate is suggested there in gender difference in the basal metabolic rate (P〈.001). The basal metabolic rate increased gradually with the peak of winter sespectively and deceased again todward summer. The difference of between basal metabolic rate in summer and winter was significant room temperature, of seoul and private house, and light total clothing weight.

• Journal of the Korean Home Economics Association
• /
• v.41 no.10 s.188
• /
• pp.1-13
• /
• 2003

The purpose of this study is to make clear the present condition and the reason of noise in one-room ape multi-family housing around the campus by residents' subjective responses. The respondents are 104 residents living in one-room ape multi-family housing around the campus. The results are as follows. 1) The residents show relatively non-positive responses at evening and night on the present condition of noise in outdoor and indoor of building or indoor of house unit. 2) The types of outdoor noise of building are checked frequently are 'talking loudness' and 'traffic noise'. 'Walking and talking sounds in stairs and corridors' among the types of indoor noise of building shows highest percentage. They answer 'living equipment noise' and 'water hammer' as major types of indoor noise of house unit.

• Journal of the Korean housing association
• /
• v.16 no.6
• /
• pp.47-54
• /
• 2005

By 2019, Korea is expected to be an aged society, age group of 65 and older being over $14\%$ of the total population, considering their rapid increase today. Also the phenomenon of population structure are accelerated by a low birth rate and long life span. This study was intended to find out the inconvenient details in houses pointed out by the elderly. This survey was taken by trained interviewers from the people of ages 65 and older living in Daejeon city. Statistical analysis was implemented from 583 appropriate data out of 624 questionnaires using (SPSS PC+ 10.0). The results were as follows. The elderly were put to inconvenience noises in room, old facility in living room and outmoded facility in kitchen and bathroom in detached house. And they were put to inconvenience the size of room, living room and bathroom and old-fashioned facility in kitchen in apartment. The stairway and bathroom in detached house and balcony, elevator and bathroom in apartment were pointed out dangerous spaces in house.

• Journal of the Korean housing association
• /
• v.6 no.1
• /
• pp.39-50
• /
• 1995

The Plan for effective usage of living room must be suggested because families primarily use living room for public space. And from the viewpoint of function and decoration. the kind of furniture. furniture occupancy quantity. and the arrangement of furniture have much affect on using a dwelling space. So this study will suggest basic data for a good furniture usage through experiment using scale down models. To analyze the data. frequency and percentage were used by running SPSS $PC^＋$ program. The major results are as follows. In an experiment using living room and furniture models(Scale 1/20). according to the size of space. TV sizes and furniture occupancy quantity were in proportion to size and space of the living room. Also they chose various types of tea-table and side-tables. In small spaces. subjects chose simple arrangement types (no sofa or I type sofa and cabinet). but in large spaces. they chose \ulcorner type or \ulcorner type sofa and cabinet.

• Journal of Advanced Marine Engineering and Technology
• /
• v.30 no.1
• /
• pp.50-57
• /
• 2006

This study describes to analyze the cooling load characteristics for a room air conditioner as a function of supply ventilation air when an air conditioner is running An experimental apparatus consists of a test room, a room air conditioner, a humidifier, an electrical heater a supply fan and a controller The reaching time to the inside setting temperature of the room air conditioner with is evaluated theoretically and experimentally in a conditioned space cooling loads such as supply ventilation air, lighting, occupancy and infiltration. In the conditions of cooling loads for the supply ventilation air of 9.5 L/s(0.98 ACH). lights. one Person, and infiltration, the reaching time to the inside setting temperature ($27\;^{\circ}C$ dry-bulb) increases up to $35\%$ more than for no supply ventilation air condition. Theoretical modelling of the reaching time shows good agreement with experimental results.

• Journal of Mechanical Science and Technology
• /
• v.17 no.4
• /
• pp.511-520
• /
• 2003

In room acoustics, reverberation time is an important acoustic parameter. However it is often difficult to measure short reverberation times at low frequencies with a traditional band pass filter bank if the product of filter bandwidth (B) and reverberation time (T) is small. It it well known that the minimum permissible product of bandwidth and reverberation time of the traditional band pass filter is at least 16. This strict requirement makes it difficult to measure short reverberation times of an acoustic room at low frequencies exactly. In order to reduce this strict requirement, in the previous paper, the wavelet filter bank was developed and the minimum permissible product of bandwidth and reverberation time was replaced with 4. In the present paper it is demonstrated how the short reverberation times of an practical room at low frequencies are successfully measured by using the wavelet filter bank and the results are compared with the traditional method using a band past filer bank.

• Transactions of the Korean Society of Mechanical Engineers
• /
• v.7 no.4
• /
• pp.404-409
• /
• 1983

The warping of unsymmetric laminated composites is induced by residual curing stress at the room temperature. Classical lamination theory (C.L.T.) predicts the room temperature shapes of all unsymmetric laminates to be a saddle. Experimental observations, however, indicate some unsymmetric laminated composites have cylindrical room temperature shapes. This anomalous behavior is explained by the extention of C.L.T. which involves Von Karman's large deflection theory. It is shown that, depending on the thickness, width, length, curing temperature and room temperature of the laminate, critical boundaries of the shape change are determined. Theoretical predictions are compared with experimental results of Toray Graphite/Epoxy {O$_{n}$/90$_{n}$}$_{T}$./....

• Transactions of the Korean Society of Automotive Engineers
• /
• v.18 no.5
• /
• pp.56-61
• /
• 2010

This paper presents dynamic clearance verification considering engine movement for vehicle engine room package and validates through physical vehicle test. Traditionally, static clearance guide has been used for engine room package, but it's only 2-dimension criteria that results in requiring unnecessary space and it's not possible to conduct engine movement with real driving conditions. Thus, the dynamic DMU considers engine movement based on 28 load cases that are Roll Data analyzed by CAE for maximum engine movement and visualizes part-to-part dynamic clearance into virtual space. The dynamic DMU enables to develop compact engine room package without unnecessary space. The result of comparison between simulation and physical test has 0.892 correlation coefficient.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2006.11a
• /
• pp.150-155
• /
• 2006

Speech intelligibility is investigated on a conference room-window glass coupled system. Using MLS(Maximum Length Sequency) signal as a sound source, acceleration and velocity responses of the window glass are measured by accelerometer and laser doppler vibrometer. MTF(Modulation Transfer Function) is used to identify the speech transmission characteristics of the room and window system. STI(Speech Transmission Index) is calculated by using MTF and speech intelligibility of the room and the window glass is estimated. Speech intelligibilities by the acceleration signal and the velocity signal are compared and the possibility of the wiretapping is investigated. Finally, intelligibility of the conversation sound is examined by the subjective test.

• Korean Management Science Review
• /
• v.28 no.2
• /
• pp.17-29
• /
• 2011

The purpose of this paper is to schedule elective surgery patients using a stochastic programming approach and to illustrate how operating room utilization behaves when a decision-maker varies costs associated with utilization. Because of the uncertainty in surgery durations, the underage and overage costs that a decision-maker considers plays an important role in allocating surgery cases into available operating room capacity. We formulate the problem as a stochastic mixed integer programming and propose a sampling-based approximation method for a computational purpose. Newsvendor model is employed to explain the results from numerical experiments that are conducted with the actual data from a hospital. The results show that the operating room utilization is more sensitive when the unit overtime cost is relatively larger than the unit cost for underutilized time.