• 제목/요약/키워드: Tape measurement

검색결과 160건 처리시간 0.028초

시험과 전산해석을 이용한 고고도용 프로펠러 성능 분석 (Performance Evaluation of Propeller for High Altitude by using Experiment and Computational Analysis)

  • 박동훈;조태환;김철완;김양원;이융교
    • 한국항공우주학회지
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    • 제43권12호
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    • pp.1035-1047
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    • 2015
  • 고고도 장기체공 축소형 전기 동력 무인기(EAV-2H+)용 프로펠러의 성능을 평가하기 위해 풍동시험과 전산해석을 수행하였다. 3종의 프로펠러에 대해 성능 곡선을 측정하고, 운용 조건을 평가하여 EAV-2H+에 적용 가능 여부를 판단하였다. 낮은 rpm 영역에서 성능 계수의 저하 경향을 확인하였다. 프로펠러 성능에 미치는 강체 천이 테이프 부착 효과를 측정하고 분석하였다. 상용 전산유체역학 코드를 사용한 성능 해석을 수행하여 시험과 해석의 추력계수-동력계수 선도가 잘 일치함을 확인하였다. 전진비에 따른 성능 계수를 비교하고 결과 차이에 기여하는 시험장치의 영향을 평가하였다. 시험에서 관찰된 낮은 rpm 영역의 성능 감소 경향을 transition SST 모델이 유사하게 모사함을 확인하였다. 낮은 레이놀즈수에 의한 깃 요소의 공력 성능 저하가 프로펠러 성능 감소의 주원인으로 분석되었다. 고고도 조건 해석으로부터 프로펠러 성능 저하를 확인하였다.

운동치료와 관절가동술이 하지길이 차이에 미치는 영향 (The Effects of Joint Mobilization and Therapeutic Exercise on Difference for Length of Lower Limbs)

  • 정연우;공원태;김병곤
    • 대한정형도수물리치료학회지
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    • 제13권2호
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    • pp.55-68
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    • 2007
  • Object: to evaluate the effects of two different treatments-joint mobilization and therapeutic exercise on difference for length of lower limbs. Method: The subjects were participated twenty six who has difference for length of lower limbs more 10mm. All subjects randomly assigned to Joint mobilization group(n=13) and therapeutic exercise group. Joint mobilization group received joint mobilization for 2 minutes, Therapeutic exercise group received for 15 minutes per day and 3 times a week during 4 week period. Tape measure method was used to measure the difference for length of lower limbs. Biodex was used to measure the muscle power of lower limbs(Knee flexion, extension). Finger to floor test was used to measure the mobility of spinal column. All measurement of each subjects were measured at pre-experiment, after 2weeks and post-experiment. Result: The result of this study were summarized as follows : 1. Both treatment decreased difference for length of lower limbs while joint mobilization more decreased difference for length of lower limbs than therapeutic exercise. 2. Both treatment increased mobility of spinal column while joint mobilization more increased mobility of spinal column than therapeutic exercise. 3. Joint mobilization increased muscle power while therapeutic exercise decreased muscle power. Conclusion: in a group-wise comparison joint mobilization is more effective than therapeutic exercise.

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라인드로잉에 의한 디자인 조형의 표현성향 (A Propensity of Formative Presentation by Line Drawing)

  • 우흥룡
    • 디자인학연구
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    • 제11권2호
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    • pp.95-103
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    • 1998
  • 본 연구는 형태적 사고에 의한 드로잉 표현을 바탕으로 조형적 독창력의 측정과 평가에 대한 근거를 구축하기 위한 연구이다. 조형사고의 전개를 이해하기 위해 점으로 구성된 자극 화면에 의한 OTLD테스트와 EMR 궤적을 통하여 형태의 지각과 인지 과정을 연구하였다. 연구결과로서, 조형표현의 객관적 관점으로서 자극화면에 의한 라인드로잉의 연결성과 표현대상 개념의 복합성이 영향을 미치는 요인으로 추출되었다. 디자인 사고의 핵심으로 창조성은 독창성을 에워싸고 있는 상위개념이 된다. 여기에서는 그 하위개념인 독창성 테스트(OTLD)를 통하여 실험한 결과, 1차 연구 결과-일정기간 경과 후 유의 성을 가지고 희귀 성향을 보이고 있음-과 본 연구결과-연결성과 표현대상 개념의 복합성의 관련성-을 토대로 디자인 조형 력 측정의 기초 실험 모델로 설정이 가능하다고 본다. 금후 이에 대한 보완연구를 통하여 디자인 분야의 조형적 독창력 측정방법이 실용화도 가능할 것으로 사료된다.

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애견 더미 개발 (Development of Pet Dog's Dummy)

  • 이예리;장정아
    • 한국의류산업학회지
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    • 제20권2호
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    • pp.219-225
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    • 2018
  • The purpose of this study is to make an ideal dummy for adult Maltese with proper investigation of its character and direct measurement of dog body-shape. The results of the study are as follows; First, there were 6 factors to affect the characteristics of Maltese body in the analysis, which are size of body, leg shape, chest shape, leg thickness, body length, length between fore-legs. In the cluster analysis with the 6 factors there were two types of Maltese body. Type 1 has body characteristics with large body, thick leg, and small distance between front legs. Type 2 has average size of all factors including body size, leg thickness, and length between fore-legs. Second, type 2 was selected as a representative one to make a dummy reflected body shape of characteristics because it took 67.71% from entire considered factors and has average value in the measured size. The first dummy pattern was planned by copying the surface area of the representative body shape with the method of surgical tape. A dummy of single body with trunk and legs was made using 30's cotton cloth, polyester inside batting, compressed form PVC and metallic wire on the joint of trunk and legs to support dummy shape. The second pattern was made by correcting size difference of the pattern and adding the pattern of neck covering plate, metal magnetic button was inserted on the center of joint area of trunk and legs to make detachable legs for easy slip on and off the pet's wear.

A simple method to evaluate body condition score to maintain the optimal body weight in dogs

  • Chun, Ju Lan;Bang, Han Tae;Ji, Sang Yun;Jeong, Jin Young;Kim, Minji;Kim, Byeonghyeon;Lee, Sung Dae;Lee, Yoo Kyung;Reddy, Kondreddy Eswar;Kim, Ki Hyun
    • Journal of Animal Science and Technology
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    • 제61권6호
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    • pp.366-370
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    • 2019
  • Overweight and obesity induce serious health problems that exert negative effects on dog's welfare. Body condition score (BCS) is a common method to evaluate the body fat mass in animals. By palpating and observing fats under the skin it is possible to predict animal's body fat accumulation condition. BCS is also a useful tool to estimate body fat composition in dogs. However, BCS can be subjective when it was performed by non-professionals like pet's owners. To develop a method to avoid the misevaluation of BCS twenty-four Beagles were enrolled and performed BCS evaluation. In addition, the length of chest and abdominal girths were measured. In correlation analysis, the sizes of chest and abdominal girth were significantly correlated with BCS. Especially, the difference and ratio of the chest and abdominal length were highly correlated with the BCS. With that, we suggested that this simple measurement of chest and abdominal girths by a measuring tape would be an effective method to estimate BCS scores in dogs that helps non-professionals to manage their own dog's nutritional condition by monitoring body fat accumulation condition.

석조문화재의 보존처리 후 표면상태 모니터링 기술 연구 (Monitoring Technology on the Surface Condition after Conservation Treatment of Stone Cultural Heritage)

  • 박성미;전유근;이명성
    • 보존과학연구
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    • 통권34호
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    • pp.32-48
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    • 2013
  • 이 연구는 석조문화재의 보존관리매뉴얼 구축을 위해 과거 보존처리가 이루어진 문화재를 대상으로 표면상태 및 물성변화를 객관적이고 효율적으로 모니터링 하는 기법을 개발하여 적용성을 평가한 것이다. 사진 촬영과 그리드를 이용한 훼손지도 작성과 테이프 접착 테스트는 석조문화재의 표면상태 변화와 훼손 위치를 파악하고 입상분해 정도를 정성적으로 평가하는데 매우 유용한 기법으로 확인되었다. 또한 디지털 휴대용 현미경 관찰과 초음파탐사는 광물입자의 풍화 및 결합상태, 균열 간격 등을 모니터링하고 보존처리 전과 후의 표면물성 변화를 평가하는데 매우 효과적인 평가기법으로 판단된다. 이 방법들은 간단한 메뉴얼화와 기술교육을 통해 문화재 관리 실무자들이 현장에서 간편하게 이용할 수 있으며, 보존처리 후 표면 변화가 관찰되는 3년마다 정기적으로 모니터링을 실시함으로써 석조문화재의 장기적이고 체계적인 보존관리기법으로 활용될 수 있을 것이다.

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Micro Fourier Rheometer에 의한 알루미나 그린 테이프의 Complex Modulus 측정 (Complex Modulus of Alumina Green Tapes Measured by Micro Fourier Rheometer)

  • 이정훈;이명현;김창은;김대준
    • 한국세라믹학회지
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    • 제36권2호
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    • pp.122-129
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    • 1999
  • 알루미나 분말/(알루미나+결합체+가소제)의 비(X)와 결합체/(결합체+가소제)의 비(Y)를 각각 변화시켜 제조한 알루미나 그린 테이프의 complex modulus를 Micro Fourier Rheometer를 이용하여 측정하였다. X와 Y의 증가에 따라 Transfer function(TF) magnitude는 증가하고 Transfer function(TF) phase는 감소하는 경향을 보였으며 이로부터 X비와 Y비의 증가가 테이프의 탄성을 증가시켜는 요인임을 알 수 있었다. 온도가 증가함에 따라 알루미나 테이프의 TF magnitude는 작아지고 TF phase는 커지는 것으로부터 테이프의 점성이 증가함을 알 수 있었다. 특히 Y비에 따른 complex modulus의 변화는 유리전이온도와 관련이 있으며 변화값은 측정 조성 범위 내에서 X비에 의한 변화값보다 큼을 볼 수 있었다. complex modulus 측정을 통하여 알루미나 테이프의 성형이 가능하기 위해서는 TF phase 값이 17$^{\circ}$이상이어야 함을 유추할 수 있었다.

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로봇 착유기를 위한 젖소 체위측정 및 자세조정의 기초 연구 (Basic Study Measuring Cow Body Parameters and Adjusting Her Postures for an Robotic Milking System)

  • 권두중;김웅;이대원
    • 한국축산시설환경학회지
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    • 제8권3호
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    • pp.171-176
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    • 2002
  • Physical parameters of milk cow were measured to design and build RMS(Robotic Milking System) with a tape-measurer and body parameter measurer. The parameters are very important variables to design an RMS. For the working zone space of an RMS manipulator and the movement blunting of milk cow, an interval frame was installed on the stall bottom, and then cow's behavioral reactions were tested. The results from this study is summarized as follow. 1. On the general physical condition measurement, the maximum, minimum and average body length of cow which is related to the space that the manipulator could work into the RMS were 175cm, 144cm, and 163cm respectively. It appeared that the average distance between bottom and chest was 60cm. 2. The average length between fore teats, fore and hind teats and hind teats were 178mm, 150mm and 95mm respectively. It appeared that the average length between bottom and teat attachments was 544mm, and the average length between fore teats and tail-end was 331mm. 3. Although a cow kept a some extent length between hind legs for milking, it looked a stable pose. However, the cow kept a some extent distance between front legs for milking, it looked a unstable pose. Based on results of this test, an interval frame of stall bottom should be installed around the position which was located at its hind legs.

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부인과 암 이후 이차적인 다리 림프 부종 환자에게 적용한 림프흡수 마사지의 효과 (Effects of Manual Lymph Drainage on Patients with Secondary Lymphedema of Legs After Gynecologic Cancer)

  • 정성관;이승병
    • 대한정형도수물리치료학회지
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    • 제22권2호
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    • pp.35-39
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    • 2016
  • Background: The superficial lymphatic system is divided into areas called lymphatic territories which are separated by watersheds. When the lymphatic system fails to remove its load either due to surgery, radiotherapy or some congenital malformation of it then the fluid and the proteins and wastes contained within it accumulates in that territory. Anastomotic connections exist across the watersheds and while they can work unaided manual lymph drainage (MLD) can significantly help drainage across them into unaffected lymphatic territories. The purpose of the study is to examine the effectiveness of a manual technique in moving fluids and softening hardened tissues using a tape measure and Patient-Specific Functional Scale. Methods: We examined the movement of fluids from the affected limbs of lymphedema patients who underwent a standardized 30-min treatment using the Dr. Vodder method of MLD. We chose a typical cross section of patients with secondary leg or secondary arm lymphedema. The lymphedema patient was also measured after the conclusion of treatment and underwent a follow-up control measurement, within 8 weeks. Both evaluation tools indicated a movement of fluid to different and unblocked lymphatic territories as well as a softening of tissues in some of the affected limbs. Results: MLD is an effective means of fluid clearance when it accumulates as a consequence of a failure of the lymphatic system. It seems likely that MLD has a systemic effect on the lymphatic system and that it can improve flow from otherwise normal tissues. Conclusions: It is hypothesized that a series of treatments would result in even more significant improvements.

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유방자가검진을 위한 효능기대 증진 프로그램의 개발 및 효과 (The Study on the Development of Self Efficacy Expectation Promoting Program and It's Effect for Breast Self Examination)

  • 정명옥;태영숙
    • 종양간호연구
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    • 제2권1호
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    • pp.50-60
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    • 2002
  • Breast self-exam is easiest, safe and cost effective to be recommended as an important method for early detection of breast cancer. This experimental research with non-equal control design was to develop the efficacy expectation program for breast self-exam based on Bandura's self-efficacy information source. The study objects selected from two local churches in Busan. Twenty from S church were selected as a study group, twenty from D church as a control group. Efficacy expectation promoting program was based on Bandura's efficacy promoting source and was two hour lecture including slide, video tape, demonstration, pamphlet. After this, there were individual interviews with them and consultations through telephone f or verbal persuasion on the weekly basis between the first week and the fifth week. The effect from the experiment were measured on the first week after education and on the fifth week. Data from control group was collected during the period from Jan 11, 2 001 to Feb 15, 2001 and data from study group was collected during the period from Jan 12, 2001 to Feb 16, 2001. Measurement instrument for this study was developed by the author with the advice of specialist in order to measure self-efficacy and breast self-exam practice. Data analysis was done by using SPSS/10.0 PC program $with^2-$ test. t-test and ANCOVA. Proved results for hypothesis were as follows. 1) It was supported that "Study group educated by efficacy expectation promoting program has higher score in change rat e of self-efficacy than control group." (1 week after education F=18.395, p=.000 5 weeks after education F=28.972, p=.000) 2) It was supported that "Study group educated by efficacy expectation promoting program has higher score in change rate of exam practice than control group." (1 week after education F=37.984, p=.000 5 weeks after education F=28.972, p=.000) In conclusion, efficacy expectation promoting program for breast self-exam developed by this study may increase s elf-efficacy and breast self-exam practice.

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