• Journal of the Korean Home Economics Association
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• v.38 no.11
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• pp.105-114
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• 2000

The purpose of this study was to investigate the wearing satisfaction of highschool girls’summer uniforms, and to evaluate the comfort-related properties of fabrics used in the uniforms. The subjects were 441 female high school students attending three different schools in Chongju city. The data was collected using self-administered questionnaires to measure the wearing satisfaction of summer school uniforms. Factor analysis, t-test, and F-test were used for data analysis. The heat and moisture transfer properties and air permeable properties of their fabrics were evaluated to measure as comfort-related properties. 1. Most students were wearing blouses made of polyester/rayon blended fabrics and skirts made of 50% wool and 50% polyester blended fabrics. 2. Clothing care and management, and appearance of summer school uniform were assessed positively, while style and design, and the level of comfort were assessed negatively. 3. The subfactors of wearing satisfaction varied according to school, style and design, and fabrics of high school girls’summer uniforms. 4. PET fabrics were rated as having a lower value of thermal retention and a higher value of air permeability than other blouse fabrics. 5. There were not differences significantly in thermal properties according to skirt materials.

• Journal of the Korean Society of Clothing and Textiles
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• v.37 no.5
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• pp.715-723
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• 2013

This develops a new and advanced S/S knitwear material made of linen/bamboo blended yarn. Linen/bamboo knitted fabrics were compared with linen/polyester knitted fabrics in terms of appearance as well as physical and comfort properties. Rib knitted fabrics were remarkably thicker than plain knitted fabrics. Knitted fabrics based on polyester yarns were heavier than those based on bamboo yarn. The porosity decreased in the following order: linen 100% > bamboo 100% > polyester 100%. The drape properties of bamboo 100% and linen/bamboo knitted fabrics were excellent. The pilling resistances of linen 100% and linen/bamboo knitted fabrics were excellent. The highest and lowest air permeability was observed in the case of linen/bamboo knitted fabrics and polyester 100% knitted fabrics, respectively. The instant cool-feeling was enhanced as the bamboo yarns were blended. The thermal conductivity of linen 100% knitted fabrics was the highest and the thermal conductivity of linen/bamboo knitted fabrics was higher than linen/polyester knitted fabrics. Bamboo 100% knitted fabrics showed a higher moisture regain than polyester 100% knitted fabrics. The results confirmed the superior appearance and comfort of a novel S/S knit wear material made of linen/bamboo knitted fabric.

• Journal of the Korean housing association
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• v.13 no.2
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• pp.23-29
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• 2002

The purpose of this study was to find out the present condition of indoor thermal environment and to investigate the environmental needs of the elderly through the measurement of outdoor and indoor physical thermal environment elements and the questionary survey of the response to thermal environment in two welfare facilities for the aged in Taegu during summer in 2001. The 38 residents among the total of 134 residents were asked to record their feelings. The result of this study was as follows. The indoor thermal environment in the facilities subjected leer this study was seemed to be comfortable comparatively. But the values of mean indoor temperature measured were about 1.6-1.8$^{\circ}C$ higher than that of a existing domestic research suggested as thermal comfort zones for the elderly during summer, and most residents fe1t somewhat hot in inner space. And the value of indoor relative humidity in one facility was out from the range of comfort humidity(40-70%). Also there were differences by the geographical location between the two.

• Journal of the Korean Institute of Landscape Architecture
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• v.27 no.1
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• pp.19-28
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• 1999

This survey is to investigate the effect of plants and waterscape facilities on the thermal indoor environment and to provide basic data for proper plant cultivation to enhance indoor landscape. The survey of the measure of comfort on the indoor environment for the residents of Taegu shows that the measure of comfort on the thermal-environment, which consist of temperature and humidity, has more negative responses than the measure on lighting . are . sound environment, which consists of air freshness, lighting condition and sound environment. The experiments on the effect of the amount of leaves and the distance of plants on the indoor thermal-environment are made. The experimental results illustrate that, as the capacity of a plant becomes greater and the distance from the plant shorter, the falling effect of temperature and the rising effect of humidity on the top of the plant are taken higher than on the side of the plant. When the same amount of leaves is set up, the distance range of the rising effect of humidity becomes wider than that of the falling effect of temperature. The investigation of the effect of waterscape facilities on the indoor thermal-environment shows that temperature and humidity of the space with installed waterscape facilities are lower and higher than without facilities, respectively.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2008.04a
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• pp.281-284
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• 2008

The purposes of this study were to make clear the present condition of indoor thermal environment in apartment units and to analyze the relation of the living factors with indoor thermal elements. The field surveys consisted of measurements on physical elements and observations on living factors and interview on resident's subjective responses were carried out in 20 apartment units. The field surveys were carried out during the $January{\sim}March$ 2007. Measuring elements were air temperature, globe temperature, and relative humidity. As results, the averages of indoor temperature each houses were $21.2{\sim}27.2^{\circ}C$, the number of houses exceed the comfort zone were 4. The averages of globe temperature each houses were $21.3{\sim}27.5^{\circ}C$, 6 houses exceeded the comfort zone. The means of relative humidity were $19.5{\sim}58.8%$, relatively dry condition. The clothing value of residents were $0.39{\sim}0.89$ clo(average 0.68 clo). The average of thermal sensation ratings each room were $4.2{\sim}4.8$, 'neutral'$\sim$'slightly warm'. The results of regression analysis on relations of living factors with the thermal elements are as follow; ventilation time(outdoor air exchange), door opening time with balcony, and gas cooker use time had significant effect on indoor temperature.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.14 no.3
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• pp.187-199
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• 1985

The low-temperatured radiant heating System like a panel heating system is recognized as nice means to make comfortable indoor environment. Perhaps, 'Ondol' would be a typical example of the Panel heating system. Nevertheless. Occupants in a radiantly heated Space which has an asymmetric radiant field may feel thermally discomfort due to the asymmetric radiation. The aim of this Study is to suggest the fundamental technical data for establishing Standards of thermally comfortable environment when designing a radiant heating System. Thermal distribution of indoor environment and the skin temperature of the occupants were measured at experimental room in KIER (Korea Institute of Energy and Resources). Whole/Regional thermal and comfort Sensation votes of the occupants were taken simultaneously in order to investigate the relationships between thermal environmental factor and the occupants' responses. The effect of an asymmetric radiation on thermal environment and the occupants' responses was analyzed by using a v.r.t.(vector radiant temperature). By this means, the thermally neutral limits for the ambient air temperature and the floor surface temperature by the occupants' responses were Obtained. And the recommended temperature limits of the indoor surface were derived from the experimental work and the theory of radiant and will provide thermal neutrality for man without any discomfort on the part of the body.

• Journal of Environmental Science International
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• v.14 no.2
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• pp.209-214
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• 2005

Draft is defined as an unwanted local cooling of the human body caused by air movement. It is a serious problem in many ventilated or air conditioned buildings. Often draft complaints occur although measured velocities in the occupied zone maybe lower than prescribed in existing standards. Purpose of this study is to clarify the evaluation of thermal comfort based on temperature and air velocity in winter. Experiments were performed in an environmental chamber in winter. Indoor temperature and air velocity was artificially controlled. The experiments were performed to evaluate temperature conditions and air velocity conditions by physiological and psychological responses of human. According to physiological responses and psychological responses, it was clear that the optimum air velocity is about 0.15 m/s and 0.30 m/s.

• Proceedings of the Korean Fiber Society Conference
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• 1998.04a
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• pp.291-295
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• 1998

The purpose of this Study was to determine thermal sensation and physiological responses for men in winter indoor environment, under various air temperature and relative humidity, with male university students. Subjective Evaluation, Heart Rate Variability(HRV), Electroencephalogram(EEG) were examined. We found that comfort of people was achieved at 50% R.H., 24$^{\circ}C$, and the difference of skin temperature was found at the calf area as air temperature changes. At low air temperature and low humidity, heart rate was decreased, but there was no change at brain wave, keeping ${\alpha}$-wave.

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2006.06a
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• pp.231-232
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• 2006

The purpose of this study is to measure and evaluate the thermal conditions of large cruiser's cabin. As the result of this study, followings are cleared. The air volume supplied to the 2 types of cabins is quite diffenrent. Temperature differences in the Room A which is located A deck and supplied enough air volume is stable all around the cabin. But Room B which is located B deck and supplied comparatively small air volume has temperature distribution problems, like time-dependent differences, vertical differences. To serve more comfort and productivity of Room B, it is strongly recommended to do a T.A.B.(Testing, Adjusting and Balancing) for more air volume and/or to design new air flow path to make air stay longer.

• Journal of the Korean Society of Industry Convergence
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• v.8 no.3
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• pp.149-154
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• 2005

The purpose of this study was to develop the High Functional Stretch Yarns and Woven Fabrics to produce the high value added textile goods and to meet the consumer's needs. For the study 8 yarns and 10 fabrics were made with three develop machine and the thermal-stress properties of the sample were tested and analysed. The result indicated that the sample fabrics kept their stretch performance regardless of conventional process. EDY(elastic DTY) had higher stretch than that of DTY(drawn textured yarn). Especially Macel yarn had higher stretch than that of DTY compared with the same condition of yarn. With time course behavior the elongation of DTY and EDY had stabled tendency without variation. The above results show that wearing sensation and comfort properties of fabrics are changed depending on the end-use. and thus, above results can be used to manufacture of fabrics for specific end-use with high comfort properties.