• 제목/요약/키워드: Leg Design

검색결과 547건 처리시간 0.026초

허리 구조를 갖는 복합 바퀴-다리 이동형 로봇의 설계 (Design of Hybrid Wheeled and Legged Mobile Robot with a Waist Joint)

  • 최대규;정동혁;김용태
    • 한국지능시스템학회논문지
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    • 제24권3호
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    • pp.304-309
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    • 2014
  • 본 논문에서는 허리 구조를 갖는 복합 바퀴-다리 이동형 로봇의 설계 방법을 제안한다. 제안된 복합 이동형 로봇은 비평탄 및 평탄 지형에서의 효과적인 이동을 위하여 로봇의 다리에 바퀴가 결합된 복합 바퀴-다리 구조와 로봇 주행 중 보행 자세로의 안정적인 전환과 비평탄 지형에서 기구적인 제한의 개선을 위하여 허리 관절을 갖는 구조로 설계하였다. 또한 다양한 지형을 인지하기 위하여 LRF센서, PSD센서, CCD 카메라를 사용하였다. 제안한 로봇 시스템의 검증을 위해 지형별 주행과 보행 자세를 선택할 수 있는 운동 계획 기법을 제안하였다. 실제 복합 바퀴-다리 이동형 로봇을 설계 및 제작하고, 제안된 운동계획을 사용한 실험을 통해 지형에 따른 효율적인 이동 성능을 검증하였다.

심의와 철릭을 활용한 나이트가운 개발에 관한 연구 (A Study on the Development of the Nightgown Considering the Construction Features of the Cheolik and the Shimui)

  • 김현정;조오순;김여숙
    • 복식
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    • 제57권6호
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    • pp.1-16
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    • 2007
  • The study aimed to develop the nightgown considering the construction and design features of the Shimui and the Cheolik. The analysis on the construction features of the Korean traditional costume and the physiological and motional attributes while sleeping resulted into the construction factors of the nightgown developed in the study. Consequently, the nightgown having these traditional Korean costume features were made for the evaluation. 4 different types of nightgowns were designed to be constructed. 20 professional clothing staff evaluated these 4 nightgowns developed and the existing nightgown used in the hotel industry. The results from the wearing test evaluation were: (1) to consider the stable closure of the gowns while wearing, the scores of the gowns developed were higher than the existing one. (2) the evaluations of the wearing comfort of the standing posture for the gowns developed and the existed were more or less similar but considering the lying down posture, the scores of the developed ones were significantly higher. (3) the gowns developed to have the wide-ham lines were considered more appropriate to the leg movement compared to the existing gown. The results from the fit and appearance test evaluation were: (1) throughout the all hight levels, the means of the gowns developed were higher than the existing gown's means in the most of the evaluation questions. (2) in the evaluation of the Korean traditional features, the gowns developed were more appropriate than the existing one. Consequently, the gowns developed were considered better to compare to the existing one in the context of postures, movements, comfort, appearance, fit, and design features.

대퇴부 거동 해석 및 복합재료 보철물 설계 (Behavior Analysis of the Treated Femur and Design of Composite Hip Prosthesis)

  • 임종완;하성규
    • 대한의용생체공학회:의공학회지
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    • 제23권2호
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    • pp.119-130
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    • 2002
  • 무시멘트 인공 고관절 전치환술 후, 복합재료 스템을 갖는 대퇴골의 장기 거동과 인공 대퇴 보철물의 설계 성능을 분석하기 위하여 비선형 유한요소 프로그램이 개발되었다. 한 발로 서 있을 때의 관절 접촉 하중과 근육하중이 적용되었고, 816개의 brick요소를 갖는 타원형 단면의 복합재료 스템으로 치환된 대퇴골이 3차원 유한요소로 모델링 되었다. 프로그램을 사용하여 대퇴골의 밀도 변화, 응력분포, 상대미소운동이 plate cut과 bend mold와 같은 제작 방법에 대한 스템의 적층 각도 변경에 따라서 평가되었다. 결과는 코발트 크롭 합금, 티타늄 합금, 스테인레스 강과 같은 금속 재료보다 AS4/PEEK, T300/976과 같은 복합재료가 적은 골 흡수를 보였다. 대퇴골 보철물의 장기 안정성 증대는 적당한 복합재료의 적층과 적층 각도의 선택에 의하여 얻어질 수 있었다.

직접 측정한 인체치수의 기술적 오차 분석 (Analysis of Technical Error of Manual Measurements)

  • 박진희;남윤자
    • 한국의류학회지
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    • 제40권4호
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    • pp.641-649
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    • 2016
  • Highly precision body measurements represent basic data required by industry and researches who wish to utilize information about the human body. The proficiency and expertise of the measurers have a significant influence on the error and accuracy of data when various parts from multiple subjects' bodies are measured. Therefore, in order to measure accurate body measurements (when measuring bodies directly), it is necessary to conduct objective analyses on errors. This study calculated the Relative Technical Error of Measurement (%TEM) using data that measured each of 24 subjects and discussed errors and methods to reduce errors by conducting comparison analysis based on measured items and objects. The result of analysis indicated that the errors based on age and gender of the objects of measurement were minor; however, there were comparatively distinct differences in measured errors based on measured items. 'Right and left Shoulder Angle' for all measured subjects displayed the greatest errors and standard deviations. 'Height' dimension, Lateral Malleolus Height and Head Height had big errors; in addition, 'Circumference', Neck Base Circumference and Armscye Circumference also had big errors. More careful measurements of such items with big errors require additional educational plan such as a proposal for more objective and detailed measurement methods. Items with small errors but big standard deviations such as Waist Circumference, Calf Circumference, Minimum Leg Circumference, Chest Circumference, Hip Circumference and Waist Circumference confirmed that errors for them greatly decreased with repeated experiments and resultant measurers increased proficiency; consequently, repeated measuring experiments for these items greatly enhance accuracy.

스트레치 소재를 사용한 현대무용 타이츠팬츠원형 설계 (Designing of the pattern of Tight Pants, an article of Modern Dancewear, Made of Stretchy Materials)

  • 김순분;곽명숙;박채련
    • 대한가정학회지
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    • 제42권4호
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    • pp.45-54
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    • 2004
  • The Purpose of this study was to research and develop a Pattern of tight Pants, featuring excellent appearance, movement and suitability for the lower body, which are widely used as a basic item for modem dance, aerobic dance and dance sports, and to provide manufacturing data for the pants. This study was carried out with 118 People who majored in dance, using questionnaires asking questions about their understanding and preference of dancewear The experimental dancewear was produced, using 5 kinds of patterns for tight pants on the market, to find out the most excellent pattern in appearance and movement performance. Then, the most excellent pattern was again improved to produce a pattern for this study. The result of this study is summarized as follows. 1. Regarding shops where they purchased dancewear exclusive shops accounted for 97%, their average price was ₩30,000 to ₩50,000(51%), and dancewear separated between the upper and lower halves was most preferred(56%). Cotton span was preferably used for a dancewear material(71%), and their dissatisfaction of a fit accounted for 38% which appeared to be highly unsatisfied with its suitability. 2. When S types of experimental dancewear prepared with a comparative pattern were tested by the senses, it was shown that the comparative pattern of experimental wear number 5 with a strip w3s excellent in movement functions and appearance. 3. The basic items necessary to design the tight pants' study pattern were categorized into waist circumference, hip circumference, crotch depth and slacks length. The shrinkages of 15% in width, 10% in crotch length md 20% in inside leg length were applied, respectively, referring to previous studies and the experimental dancewears' comparative patterns. 4. When the improved study pattern for this study was tested by the senses, it showed higher scores in movement functions and appearance than the comparative pattern did, which confirmed the study pattern's improvement of functions and appearance.

생활한복형 하절교복의 의복기후와 주관적 감각 (The Clothing Microclimates and Subjective Sensation for Casual Hanbok as School Summer Uniform)

  • 유정자;권수애
    • 한국생활과학회지
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    • 제21권4호
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    • pp.765-780
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    • 2012
  • This study was investigated the clothing microclimate, subjective sensation for the improvement of traditional koran high school student uniform so called "Saenghwal Hanbok". For the purpose, casual hanbok school summer uniforms were made. They were made of 4 different textiles materials - P/R, P100, P/C, P/R/S for blouses, P/W, P100, P/R, P/W/F for skirts. Then their clothing microclimate, subjective sensation were tested at room temperature $25{\pm}1^{\circ}C$ and $50{\pm}10%$ R.H. Clothing Microclimates wearing on the blouses were good matched comfort temperature range. Subjective sensations wearing on the blouses were better than those of traditional koran clothes so called "Hanbok" and quite same for western style clothes. Thermal sensations were indicated some hot condition, and moisture sensations were indicated some wet condition but tactile sensations and comfortable sensations were agreeable. The temperatures of the forehead and the breast wearing on the skirts were indicated the same results with the cases of the blouses. Leg temperatures were some lower than the mean skin temperature, the other parts' temperatures were slightly higher than blouses but the mean skin temperatures were satisfied comfortable ranges. Subjective sensations wearing on the skirts were better than those of the other traditional clothes and even Western clothes. Thermal sensations and moisture sensations were resulted the same with the case of blouses. Currently, P/R material and P/W material seemed to be cool and respectively suitable for blouses and skirts in summer among the materials of modernized Korean traditional costumes and school uniforms, since those materials lowered skin temperature. But better, physiologically pleasant materials for summer clothes should be development in consideration of clothing microclimate and subjective sensation.

개방형 근위경골절골술의 3차원 수술계획을 위한 절골해석모델 (Analytical Osteotomy Model for Three-dimensional Surgical Planning of Opening Wedge High Tibial Osteotomy)

  • 구본열;박병건;최동권;김재정
    • 한국CDE학회논문집
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    • 제18권6호
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    • pp.385-398
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    • 2013
  • Opening wedge high tibial osteotomy (OWHTO) is widely used to treat unicompartmental osteoarthritis of the knee caused by degenerative deformations of the anatomical axes of the leg. However, since it is difficult to accurately plan the surgical degrees of adjustment such as coronal correction angle and tibial posterior slope angle to align the axes before the actual procedure, a number of studies have proposed analytical models to solve this problem. While previous analytical models for OWHTO were limited to specific cases, this study proposes an analytical osteotomy model (AOM) and a surgical planning system (SPS) that are suitable for a wide range of tibial morphologies and tibia conditions. The validity and generality of the model were verified in a total of 60 OWHTO cases. Results of the test showed that, as predicted, surgical degrees are affected quite significantly by tibia shape and slope of the resected surface. Comparison of the required surgical degrees and the degrees estimated from virtual surgery simulations using AOM showed a very small average difference of $0.118^{\circ}$. SPS, based on AOM, allows the operating surgeon to easily calculate surgical parameters needed to treat a patient.

노년 여성의 팬티 디자인 개발을 위한 하반신 체형 연구 (제2보) -전라북도 거주 60, 70대 여성을 중심으로- (A Study on Lower Body Somatotype for Briefs Design Development of the Elderly Women (Part 2) -Focused on the Women in the 60s and 70s in Jeonbuk-)

  • 이효진;김진;김주연
    • 복식문화연구
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    • 제14권1호
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    • pp.79-92
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    • 2006
  • This study was purposed to present the basic data on the elderly women's somatotype to develop new briefs design with high body-adaptability. The subjects were 115 elderly women in the 60s and 70s and the factor analysis for 32 directly measured values of the body parts was carried out to sort out the constituent factors of the elderly women's bodies, and finally 4 factors were decided. The first factor was the thickness of the trunk and the degree of the obesity in the center of the width, thickness and circumference. The second factor is the perpendicular size of the body with high loads on the longitudinal direction of the body. The third factor was the leg shape. The last factor was the degree of the sagging hip. The elderly women's somatotype was classified into 3 types. The first type was the 'mean somatotype' with the biggest height and the longest lower half body of the three types. The second type was the 'obese somatotype' with the mean height and length of the lower body and with the largest circumference and width. The last type was the 'skinny somatotype' with the smallest values of all the items in the perpendicular size and the degree of the obesity.

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노인용 밸런스게임 개발 및 효능 연구: 복지형 게임 제언 중심으로 (Development and Analysis of the Balance Game for Elderlies: Based on Proposal of the Game-Aided)

  • 오성석;김경식
    • 한국게임학회 논문지
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    • 제11권6호
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    • pp.33-42
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    • 2011
  • 본 연구에서는 신체의 장애를 반영한 복지형 게임디자인 틀을 제시하였다. 이 게임 디자인 방식은 게임 규칙의 관용성과 게임의 환경적 체감을 노인의 선택적 반응능력과 같은 민첩성에 적절하도록 제작하는 것을 의미한다. 그리고 복지형 게임방식을 적용하고, 하지근육의 개선과 균형조절능력의 향상을 목표로 '굴렁쇠 굴리기 밸런스게임'을 개발하였다. 게임진행은 양발의 굴림 동작과 양손의 누름동작으로 의자형 게임컨트롤러에 설치된 압력센서를 누르는 단순한 동작으로 진행하며 복합동작이 필요하지 않도록 하였다. 또한 게임그래픽의 소재로서 회상요법으로 활용되고 있는 나마지와 하인즈(1994)에 의해 제시된 지각자극 세트를 활용하여 노인들에게 친숙한 게임그래픽으로 구성하였다. 노인 50명을 대상으로 테스트진행하고 설문조사하였다. 설문조사의 결과로 74%가 게임에 만족한다고 답하였고, 88%가 게임을 지속적으로 게임을 이용하겠다는 유의미한 결과를 얻었다.

애견복 원형 개발에 관한 연구 (A study on the Development on the Basic Pattern for Pet Dog's Wear)

  • 정화숙;문명옥
    • 한국의류산업학회지
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    • 제8권1호
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    • pp.99-106
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    • 2006
  • With the growing interest in pet dogs and pet dog's wear I used this study to compare and analyze the pattern used by each supplier and developed a new pattern for pet dogs' wear which is appropriate for pet dogs' body lines and movement. Test subjects were 91 pet dogs in Busan and after comparing 3 patterns from different suppliers, I developed the pattern reflecting pet dogs' body shapes and movement. Results are as follows; 1) As a result of analyzing measurements, it was found that pet dogs motion in walking on four feet, is different from that of people on two feet. For center measurements, their waist to bust length is longer than their waist to back length. The result of analysis shows that bust circumference impacts most other measurement results and it seems that better results are achieved if the bust line is taken into consideration when measuring bust back length, bust front length, neck base circumference, front leg arc, the length between lateral shoulder etc. 2) As a result of comparing suppliers' patterns, it was discovered that each supplier has different sizes for the same patterns and those sizes are not standardized across the board. Even if the same size of pattern was actually used in the production of pet dogs' wear by the individual companies, there were many variations in size for each item. 3) To develop a more standard pattern of pet dogs' wear, I collected and analyzed 3 patterns from each supplier and designed a new pattern, revising it three times. After test-wearing of the experimental pattern and the studied patterns, and comparing and analyzing the results, the studied pattern had similarly better estimation than the experimental one.