• 제목/요약/키워드: back length

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submicron LDD NMOSFET에서 back bias에 따른 transconductance 변화에 대한 연구 (A Study on the Transconductance Change of submicron LDD NMOSFETs under back bias)

  • 원명규;구용서;안철
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 1999년도 추계종합학술대회 논문집
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    • pp.875-878
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    • 1999
  • In this paper, we measured and simulated the transconductance change of submicron LDD NMOSFETs due to back bias under various channel length, temperature and substrate doping conditions. As back bias is increased, the mobility will decrease and g$_{m}$ decreases according to a conventional model. But as the channel length is reduced, this phenomenon is inverted and g$_{m}$ increases in the submicron region. This can be explained by analyzing the electron quasi Fermi potential in the channel. And the empirical formulae which show the g$_{m}$ change were induced. These will be helpful to enhance the efficiency and precision of IC design.esign.

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여자 대학생의 어깨길이와 어깨경사각의 측정 (Measurement of Shoulder Length and Slope of Women's University Students)

  • 장수정;정연;성수광
    • 대한인간공학회지
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    • 제18권2호
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    • pp.11-24
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    • 1999
  • The purpose of this study was to obtain the basic data for sound wear design. The objects' of this study were 331 women's university students. The eight items were the shoulder length, shoulder slope, height, weight, chest girth, neck girth, back length, and back shoulder width. The shoulder length and slopes were measured, compared with the right, the left, and other items. The results were as follows; The difference between the right and left shoulder length did not nearly appear. The mean of the right shoulder slopes was $21.3^{\circ}$, and that of the left was $21.9^{\circ}$. According to increase of the age, the right and left shoulder slope tends to be higher. The maximum distribution was $20.7^{\circ}$. According to increase of the age, the maximum distribution tends to be higher. The left compared with the right shoulder length, the right shoulder length of 90.3% objects' was longer than that of the left. The right and left shoulder length of 4.2% objects' were same. The left shoulder length of 5.4% objects' was longer than that of the right. The left compared with the right shoulder slopes, the right shoulder slopes of 12.7% objects' were higher than those of the left. The both size of 20.5% objects' were equal. The left slopes of 66.8% objects' was higher than those of the right.

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3차원 인체데이터에 의한 20대 성인남성 상반신 체표변화 분석 - 모터사이클복 패턴설계시 적용을 중심으로 - (Analysis of Body Surface Change from 3D Scan Data of Men's Upper Bodies in Twenties - Focus on Application of Motorcycle Jacket Pattern -)

  • 도월희
    • 한국의류학회지
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    • 제32권4호
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    • pp.530-541
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    • 2008
  • The early stage of 3D anthropometry data has been used to obtain qualitative rather than quantitative information. However recent 3D body scanners as a common research tool for anthropormatric measurments have made it possible to obtain body surface data of sufficient resolution and accuracy. The purpose of this study is finally to develop motorcycle jacket for enhanced comfort and fit, to test the accuracy and reliability of 3D measurments of motorcycle riding posture, and to analyze the change in 20's adult male's body surface measurements between the standard anthropometric position and motorcycle riding posture. The results of this study were as follows: There were no significant differences between the study and Size Korea measurments in total traditional measuring items and most of measuring items, such as length, circumference antropometric items and interscye items though not waist back length and upper arm circumference. A comparison of 3D body surface measurments in the two different measuring postures, the bodysurface measurments such as waist front length, biacromion length, front interscye, arm length, underarm length in the motorcycle riding posture decreased than that in basic posture, whereas waist back length, back interscye, C.T.W length increased. The body surface measurments such as chest, bust, upper circumference in the motorcycle riding posture decreased than that in basic posture, whereas neck, waist, hip, elbow circumference increased.

캐주얼 브랜드의 패딩 재킷 생산실태 조사 및 20대 여성용 패딩 재킷 패턴 연구 (An assessment of the production of padded jackets in casual brands and a study of padded jacket patterns for women in their 20s)

  • 이혜승;서미아;어미경
    • 복식문화연구
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    • 제21권2호
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    • pp.183-194
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    • 2013
  • In recent years, intense cold spells caused by climate change have encouraged an increasing number of people to wear a variety of padded jackets. In this context, this paper aims to address the production of padded jackets in casual brands and to develop basic patterns for well-fitted padded jackets targeted toward women in their 20s. The study centered on the production of padded jackets from 13 apparel companies. In addition, three sample jackets were created with 3oz. fill in the body and 2oz. fill in the sleeves, and they were subjected to a wearing test to determine their movement functionality. The research findings were as follows. Woven jackets constituted 53.4% of the winter jackets produced by casual brands; padded jackets accounted for 25.3%, leather jackets 12.6%, and other jackets 8.7%. Thus, data showed that padded jackets accounted for a considerable proportion of overall winter jacket production. Based on the wearing test results, the basic measurements of a padded jacket for women in their 20s were as follows: bust girth of B/4+3cm front length and B/4+3.5cm back length; waist girth of W/4+3.1 cm front length and W/4+1.9cm back length; and hip girth of H/4+3.3cm front length and H/4+2.8cm back length. The jacket length was set at 62.8cm, with a 63.8cm sleeve length. This study concluded that providing padded jacket manufacturers with basic pattern designs for a well-fitted jacket is expected to boost the efficiency of pattern design processes and the production of padded jackets.

후단 방령반비에 관한 고찰 (A Study on Hudan Bangryung-Banbee)

  • 홍나영
    • 복식
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    • 제44권
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    • pp.117-129
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    • 1999
  • Hudan Bangryung-Banbee was the name for a traditional dress which had a square neckline collar. Among Bangryung-Banbee, there was a particular style which, plus with the square neckline collar, had the half-length sleeve, bodice whose back length was shorter than the front. This kind of style shown a big difference from the typical pattern of traditional Korean costumes which had the V neck and had to fold the neckband of the clothes in Y-shape. This study focused on the analysis of the change of Hudan(後短) Bangryung-Banbee style. Bangryung-Banbee of the half sleeve/shortened back style had been usually excavated around the period of the Japanese invasion of Chosun dynasty(1592-1598). And up to now this kind of the costumes was never found before the fifteenth century or after the eighteenth century in Korea. Therefore it is thought that Bangryung-Banbee was worn widely in the middle of the Chosun dynasty. However, the shape of the collar and the length of sleeve and of dress were variously used, so it must be recognized that there existed much more diverse styles of Bangryung-Banbee than it was known today. But as the times passed away, the lined Bangryung-Banbee disappeared, and the collar of Bangryung-Banbee changed from square neckline to rounded Wonsam(圓衫) or Baeja(背子)-shape. And in the case of Bangryung-Banbee's front length, the original style disappeared, while a new style of longer back appeared.

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만성 요통 환자의 하지 길이 부전과 요천추부 및 골반의 방사선학적 지표와의 관계 (Relationship between Leg Length Discrepancy and Radiological Parameters of Lumbosacrum and Pelvis in Patients with Chronic Low Back Pain)

  • 조유정;정석희;송미연
    • 한방재활의학과학회지
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    • 제20권4호
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    • pp.171-183
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    • 2010
  • Objectives : The biomechanical relationship of leg length discrepancy(LLD), Lumbar lordosis, pelvic variance and degenerative scoliosis is one of the most important parameters when treat musculoskeletal disorders, however the reports are still controversial. The purpose of this study was to compare the relationships between the parameters and bothersomeness in subject with chronic ow back pain. Methods : Sixty female and eight male adults with non specific low back pain over 3 months were recruited. LLD was measured by tape measure method. Lumbar lordosis, lumbosacral angle and related pelvic parameters were measured using simple radiologic films of lumbosacral view. Results : Lumbar lordosis was significantly correlated to the lumbosacral angle, pelvic incidence and difference of the both iliac widths. Pelvic incidence had significant correlation with difference of the both iliac widths. And difference of both iliac widths was related with LLD by radiologic film. There was also significant correlation between the LLD by radiologic film and tape measurement. Visual analogue scale(chronic low back pain) of normal lordosis group was greater than hyperlordosis group. Conclusions : There were close biomechanical relationships between lumbar, pelvis, and lower extremity. But in order to determine the effect of structure on the chronic low back pain, global balance of musculoskeletal structure seems to be worth further researching.

중년 여성의 자켓패턴 설계 (Jacket Pattern for Middle-Aged Women)

  • 류영숙;이정란
    • 한국의류산업학회지
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    • 제2권4호
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    • pp.353-359
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    • 2000
  • The purpose of this study was to develop the jacket pattern drafting method for Korean middle-aged women. The study was composed as follows : 1. Body measurement and statistical analysis : Two hundreds and forty four middle-aged women between the ages of forty five and fifty nine were measured on 52 items. 2. Development of new jacket pattern drafting method : Measurement items necessary to draft new jacket pattern were back waist length, bust girth, waist girth, hip girth, back interscye breadth, front interscye breadth, neck base girth, nipple length, nipple to nipple breadth, 1/2 posterior shoulder length and sleeve length. Basic jackets constructed from the experimental patterns were examined through the fitting test. 3. Evaluation of the new pattern drafting method : The sensory evaluations for appearance and comfort were applied to evaluate the new jacket pattern by comparing it with one of the conventional jacket patterns (Lee Hyung-Suk's). According to the result of sensory evaluation, the new jacket pattern was more positive.

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몽골 성인여성체형에 관한 연구 (A Study on Body Types of Mongolian Women)

  • 홍정민
    • 복식
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    • 제51권6호
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    • pp.167-176
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    • 2001
  • This study analyzes characterization and classification of body types of Mongolian women aged 18∼39 ages. The anthropometric measurements of the research subjects come up to a total of 23 items and are summarized as follows : 1. As the results of comparative analysis of the body measurements by age group, 16 items show a significant difference except shoulder height, thigh girth, neck base girth, back length shoulder length, sleeve length and weight. Both age group are considered to be of average weight but 25 to 39 age group were slightly greater than that of the 18 to 24 age group. 2. As the results of factor analysis, 4 factors such as the first factor on the obesity of body, the second factor on the vertical size of body, the third factor on the back length, the forth factor on the shoulder width and neck base girth were extracted. 3. As the results of classification based on the duster analysis, the body types were classified into 3 types in each age group. In each age group the most frequent body type is average stature and slightly thin type.

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장애원인에 따른 여성 장애인의 신체 특성 (Physical Characteristics of Disabled Women by the Cause of Disability)

  • 박광애
    • 한국의류산업학회지
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    • 제7권4호
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    • pp.419-425
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    • 2005
  • The purpose of this study is to analyze the physical characteristic by directly measuring the wheelchair using disabled women. The subjects were 103 disabled women of wheelchair used women and between 20 - 55 years of age. The result of this study is as follow. There was a remarkable difference in the physical characteristic of wheelchair using disabled women due to their cause of disability. The cause of disability was classified into the 4 groups; poliomyelitis, spiral cord injury, muscular dystrophy, cerebral palsy. Poliomyelitis disability generally had a large horizontal area due to their strong upper body. People with spiral cord injury disability was shown to have the largest height, cervical height, waist back length, crotch length, knee length, The group of muscular dystrophy disabled people have the shortest length of body and also lean. The cebral palsy group of disabled people has an average length and height size body. A comparison of anthropometric measurements of wheelchair using disabled women with National Anthropometric Survey Korea(1997) was significant difference. People with poliomyelitis disability was shown to have a larger waist back length, neck point to breast point compared to normal women, but stature, crotch length was shorter compared to normal women. People with spiral cord injury disability had a similar in the vertical area. The group of muscular dystrophy and cebral palsy disabled people was short and smaller in general compared to a normal woman.

요부 근력운동이 복부비만자의 요통지수, 요부 유연성, 복부비만도에 미치는 영향 (The Effects of Pain, Lumbar Flexibility and Abdominal Obesity of Patient with Low Back Pain and Abdominal Obesity after Lumbar Strengthening Exercise)

  • 이성은;김종우;서현규
    • 대한정형도수물리치료학회지
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    • 제15권2호
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    • pp.25-34
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    • 2009
  • Purpose : The purpose of this study is to investigate that the Effects of Pain, Lumbar Flexibility and Abdominal Obesity of Patient with Low Back Pain and Abdominal Obesity after Lumbar Strengthening Exercise. Methods : The selected subjects of this study were 17 patients who had diagnosis on low back pain and body mass index was more than $25kg/m^2$ and lumbar length was more than 90cm. They divided into a control group with 10 patients doing lumbar stabilization exercise and an experimental group with 7 patients ding simple lumbar strengthening exercise in order to compare degrees of oswestry disability index and lumbar stability, lumbar length was measured before the exercise, in 4 weeks and 8 weeks after exercises respectively. Result : lumbar strengthening exercise on patients with low back pain and abdominal obesity affected improving function of lumbar and decrease of pain with abdominal obesity. Conclusion : Then lumbar stabilization exercise than simple strengthening exercise affected decrease of Visceral fat tissue on abdominal obesity.

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