• International Journal of Aeronautical and Space Sciences
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• v.18 no.1
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• pp.91-98
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• 2017

Performance of a low speed axial compressor is enhanced through a proper configuration of blade row tip injection and casing treatment of groove type. Air injectors were mounted evenly spaced upstream of the blade row within the casing groove and were all aligned parallel to the compressor axis. The groove, which covers all the blade tip chord length, extends all-round the casing circumference. Method of investigation is based on solution of the unsteady form of the Navier-Stokes equations utilizing $k-{\omega}$ SST turbulence model. Extensive parametric studies have been carried out to explore effects of injectors' flow momentums and yaw angles on compressor performance, while being run at different throttle valve setting. Emphasis has been focused on situations near to stall condition. Unsteady numerical analyses for untreated casing and no-injection case for near stall condition provided to discover two well-known criteria for spike stall inception, i.e., blade leading edge spillage and trailing edge back-flow. Final results showed that with only 6 injectors mounted axially in the casing groove and at yaw angle of 15 degrees opposite the direction of the blade row rotation, with a total mass flow rate of only 0.5% of the compressor main flow, surprisingly, the stall margin improves by 15.5%.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2006.05a
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• pp.226-229
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• 2006

Process design has been performed for the warm hydroforming of light weight alloy tubes. For the heating of tubes, specially designed induction heating system has been adopted to ensure rapid heating of tubes. The induction heating system uses 30kHz frequency induction coil in order to concentrate the energy in the tube and prevent the energy loss. But the induced heat by the integrated heating system, consisting of induction coil, tube, pressure oil and dies, was normally not equally distributed over the length and circumference of the tube specimen, and consequent temperature distribution was non-uniform. So additional heating element has been inserted into the inside of the tube to maintain the forming temperature and reduce temperature drop due to heat loss to the molds. And for that heat loss, a heat insulation system has also been installed. The drop in flow stress at elevated temperatures results in lower internal pressure for hydroforming and lower clamping forces. The proposed warm hydroforming process has been successfully implemented when applying 6061 aluminum extruded tubes.

• Journal of the Korea Fashion and Costume Design Association
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• v.22 no.1
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• pp.1-13
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• 2020

The purpose of this study is to create a 3D avatar from 3D human body shape data using the CLO 3D virtual clothing program and to verify the feasibility of avatar production using the virtual clothing system for verifying size and shape. The research method was to select one virtual representative model that is the closest to the mean size of each body item for each age group. Using the 3D human body scan shape of a 40-69 years old male was applied to the CLO 3D virtual wearing system. Using the CLO 3D Avatar conversion menu, we verified the feasibility of creating a 3D avatar that reproduces the human body scan shape. In the dimension comparison between the 3D avatar and the fictitious representative model, the dimension difference was noticeable in height, circumference, and length. However, as a result, the converted 3D avatar showed less than a 5% difference in most human dimensions. In addition, since the body shape and posture were reproduced similarly, the utilization of the avatar was verified.

• Child Health Nursing Research
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• v.9 no.3
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• pp.259-271
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• 2003

Purpose: The purpose of this study was to evaluate the effectiveness of sensory stimulation therapy on the physical growth and behaviors of infants accommodated at two Korean orphanages. Method: Thirty-eight full term infants were assigned to a control (n=20) or an experimental (n=18) group within 14 dys of birth. In addition to routine orphanage care, infants in the experimental group received 15 minutes of massage twice a day, 5 days a week for 4 weeks. Result: Compared to the control group, the experimental group had gained significantly more weight and had larger increases in length and head circumference after the 4-week intervention period. In addition, the experimental group showed significantly better behavioral performance in the scoring of habituation (e.g., light), motor (e.g., motor maturity), and state range (e.g., peak of excitement, rapidity of build-up) behavioral clusters of Brazelton's NBAS. Conclusion: These data demonstrate that sensory stimulation therapy may facilitate the physical and behavioral development of the newborn infants placed in the orphanages.

• Journal of the Korean Institute of Landscape Architecture
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• v.29 no.5
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• pp.84-91
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• 2001

The purpose of this thesis is to search for appropriate design elements to manage ponds on golf courses. This paper showed that a variable, width, and volume have significant influence on satisfaction(Sig 0.001). This research investgated golf courses in Kyung-ki province. In short, we measured the physical design elements of ponds to bring out major factors which could determine satisfaction of golf courses for golfcourse manager(greenkeeper). The results between satisfaction and physical variable came out as follows; 1, Golfcourse managers(Green keepers) responded to questions that they were satisfied in only 29.9% of the ponds. We found that they considered management very highly. we could evaluated the value of necessity and importance are high, that is importance to manage ponds 2. Some physical design elements(volume, width) increased dependent variable(satisfaction) and others(length, area, circumference, index of shape) decreased dependent variable(satisfaction) 3. Volume has an influence on dependent variable more than depth on index of shape. 4 If the result of \`index of shape\` decreased, the result of \`management satisfaction\` would be high, and when volume is 8500ton∼17000ton, depth is 27m∼3.1m, \`management satisfaction\` would be high. The research findings can be used for planning and designing of golfcourses for designers, and by management for greenkeepers, and will provide pertinent design elements far design of golfcourses. We suggest that the interrelation between ponds and strategic play must be examined in future research.

• Journal of the Korean Home Economics Association
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• v.39 no.2
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• pp.25-40
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• 2001

The purpose of this study is to provide for the basic data useful to the development of the quality of brassiere featuring a good wearing feeling and an effect of reinstating and correcting breast shape. For this purpose, 220 adult women aged between 20 and 59 were sampled to survey their actual breast shapes. The results of this study can be summarized as follows; 1 According to the increase of age, the items of height were decreased and items of width, depth, circumference and length were increased, being obeser and breast point were drooped. So volume and bottom are3 of breast of 40.50′s women′s age group were larger than 20.30′s women′s age group and breast point width of 40.50′s women was being wider by increase of interior dimensions of breast. 2. The components of adult women′s breast shape can be categorized into "obesity of breast", "upper dimensions of breast and drop", "lower dimensions of breast and drop", "location of breast point and vertical size of breast", "interior dimensions of breast", "exterior dimensions of breast" Such components of breast shape very in terms of weight or apparence depending on ages. Older women tend to have more droopy and widen breasts.

• Journal of the Korean Home Economics Association
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• v.48 no.6
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• pp.1-8
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• 2010

The purpose of this study is to classify body type by BMI and to inquire about body satisfaction and fitness apparel depending on body type among women 20-50years of age. As a result, body types are classified into three groups: lean, normal, and obese figures. On front silhouette, the normal type occupies most in women belonged to lean figure group, the obese lower part of the bodytype in normal figure group, and the obese upper part of the body type in obese figure group. On the other, in side silhouette, the slender type is prevalent in lean figure group, hip obesity in normal figure group, and trunk obesity in obese figure group. In particular, women in the obese figure group were distributed among the various body types. The obese figure group had a lower fitness apparel in the measurement of circumference(e.g., chest, waist, and hip) related to obesity in comparison with measurement of length. Therefore, the development of an optimal sizing system in response to the various body types in the obese figure group is needed to provide more diversity in aesthetic design and continuity among various sizing systems.

• Journal of the Korean Society of Costume
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• v.65 no.7
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• pp.1-18
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• 2015

The purpose of this paper is to compare the body types of Korean-Chinese and Han-Chinese women in their 60's dwelling in Yanbian Korean Autonomous Prefecture. In addition, a survey was conducted to analyze the social and environmental factors that would decide the body types of these two groups of individuals. 1) The comparison of 74 items in physical measurements between the Korean-chinese and Han-chinese showed differences in 36 items. 2) As for the body measurements of women, difference was found between the Han-Chinese and Korean-Chinese in all height items except bust height, circumference, depth, length, and weight. The values of Korean-Chinese were lower than those of Han-Chinese. 3) Cluster analysis shows that Korean- Chinese women appear thinner in regards to common weight, while Han-Chinese women appear to be thicker in regards to with common thinness. 4) Korean-Chinese women dwelling in Yanbian Korean Autonomous Prefecture maintained unique traditional customs and eating habits of Korea and were in constant contact with Korean cultures, which seems to make them care more about body management for health and beauty.

• Journal of the Korean Society of Costume
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• v.57 no.10
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• pp.50-59
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• 2007

This study has been conducted to classify elderly men's feet with the three-dimensional body scanner data of Size Korea. It was intended to assist the manufacturing of the shoes that can appropriately perform the functions of feet, by providing the specific information about the shapes of elderly men's feet that are altered as a result of aging and shoe-wearing for a long time. The findings are as follows. 1. The investigations into the average and standard deviation of the measurements and index values for the elderly men's feet showed a large personal difference in the items of length and circumference. 2. The factors constituting the elderly men's feet were observed to be the size of foot width(Factor 1), the central angle of feet and the extension of toes(Factor 2), the size of ankle(Factor 3), the positions of lateral malleolus and pternion(Factor 4), and the position and size of medial malleolus(Factor 5). 3. The cluster analysis for the classification of elderly men's feet produced three types of them.

• Fashion & Textile Research Journal
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• v.16 no.2
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• pp.285-292
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• 2014

The purpose of this research is to suggest data available for being conducive to establishing a marketing strategy such as size of domestic clothing in global brand and producing a product of increasing consumers' satisfaction with the fit based on this research. A total of 177 questionnaires obtained from South Koreans in their 20s~50s who dwell in the state of North Carolina in America. The results follow; first, what there is significant difference in clothing purchase behavior of Koreans living according to income, duration of residence. Second, the reason for preferring Korean clothing according to educational level was the highest in the ratio of the response as saying of being 'size' with a decrease in the item of 'design'. This was because the higher in age and educational level leads to the more rise in importance of size according to a change in body type. Third, the outcome of evaluation on the fit by body part in American clothing was the largest in the response as saying of being 'similar' in the items of chest, waist, neck, arm, wrist circumference and crotch length.