• 제목/요약/키워드: gliding

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앉은 자세에서 일어날 때 비탄력 테이핑을 이용한 무릎뼈의 아래 안쪽 활주가 안쪽넓은근과 가쪽넓은근의 근활성도에 미치는 영향 (Effect of inferomedial gliding of patella using non-eleastic taping on muscle activity of vastus medialis and vastus lateralis during sit to stand)

  • 윤상혁;강종호
    • 융합정보논문지
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    • 제7권4호
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    • pp.39-43
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    • 2017
  • 본 연구의 목적은 앉은 자세에서 일어날 때 비탄력 테이핑을 이용한 무릎뼈의 안쪽 활주와 아래 안쪽 활주가 안쪽넓은근과 가쪽넓은근의 근활성도 비율에 미치는 영향에 대해 알아보고자 하는 것이었다. 측정 결과, 안쪽 활주와 비교하여 아래 안쪽 활주를 적용했을 때 안쪽넓은근의 근활성도가 전체 근활성도 대비 비율이 더 높게 나타나는 것을 확인할 수 있었다. 무릎뼈의 안쪽 활주보다 아래 안쪽 활주가 무릎관절의 안정성에 더 큰 기여를 하며, 특히 무릎넙다리 통증증후군의 증상 완화 및 예방에 효과적일 것으로 사료된다. 이와 관련하여 무릎뼈를 아래 안쪽 방향으로 활주 시킬 수 있는 보조기 및 운동복 등의 개발은 무릎관절의 건강을 확보할 수 있는 새로운 방법이 될 것으로 기대한다.

이산화탄소 전환을 위한 글라이딩 아크 플라즈마 스크러버의 수치계산 (Numerical Analysis of a Gliding Arc Plasma Scrubber for CO2 Conversion)

  • 김성천;전영남
    • 한국대기환경학회지
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    • 제30권4호
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    • pp.339-349
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    • 2014
  • $CO_2$ emission has been gradually increased due to rising fossil fuel use. A gliding arc plasma scrubber (GAPS) was proposed to destruct $CO_2$. For optimum design of GAPS, a CFD analysis has been conducted in different configuration for the system. The parameters considered included gas injection velocity at the nozzle and gas flow rate to gap between electrodes. The reactor configuration affected velocity fields which caused changes in the mixture fraction and the retention time. The mixing effect of $CO_2$ and supplied gas ($CH_4$ and steam) was enhanced by installing a orifice baffle. This revealed that the orifice baffle is effective in $CO_2$ conversion by positioning the reactants in the gas into the center of plasma discharge.

Kaltenborn의 관절가동 기법 (Kaltenborn's Joint Mobilization Techniques)

  • 김호봉;배성수
    • 대한정형도수물리치료학회지
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    • 제4권1호
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    • pp.35-43
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    • 1998
  • This study was introduce to Manual Mobilization of the Extremity Joints of Freddy M. Kaltenborn(1989). Much of Orthopedic Manipulative Therapy is devoted to the evaluation and treatment of joint and related soft tissue disorders and one of the primary treatment methods is mobilization. When examination reveals joint dysfunction, especially decreased range of motion, joint mobilization techniques are often utilized. Kaltenborn's joint mobilization techniques are performed as passive examination or treatment movements by the therapist. There are three basic joint play movements: (1) traction, (2) compression, and (3) translatoric gliding. The purpose of joint mobilization is to restore normal, painless joint function. Mechanically, the goal is to restore joint play and thus normalize roll-gliding which occurs during active movements.

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요추추간판 수핵탈출증에 대한 편측견인의 치료효과 (Unilateral Traction Effects for a Herniated Nucleus Pulposus in the Lumbar Disk)

  • 박지환;권혁수
    • 대한정형도수물리치료학회지
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    • 제1권1호
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    • pp.99-104
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    • 1995
  • Markolf and Morris suggests that the deranged disk and torn annulus have an exellent recovery ability from the position of spine extension, where the posterior annulus is not under stress and the gel can move anterioly. McKenzie explains side gliding as a combination of rotation and side bending, his clinical studies indicate that side-gliding can gel laterally. In conclusion, the prone unilateral traction on the opposite side from the patient's pain along with the other treatment appered to have helped reduce those patient's pain. The method of treatment described in this report is suggested for Korean physical therapists who treat patients suspected of posterolateral herniated nucleus pulposus.

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현장(現場)에 있어서 양식(養殖)넙치의 질병대책(疾病對策) (Control Methods of Diseased of Japanese Flounder, Paralichthys olivaceus, used in Fish Farms, in Japan)

  • 미즈노 요시츠구
    • 한국어병학회지
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    • 제6권2호
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    • pp.219-231
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    • 1993
  • The author introduces the preventive and therapeutic methods of diseases in Japanese flounder which have been conducted by the Fish Disease Laboratory, the Mikamewan Fishery Cooperative Union, Ehime Prefecture, since 1982. Prevention 1. Addition of a sand substrate in the culture pond was effective to prevent ulcer disease. 2. Bathing in 0.5ppm of copper ion was effective to prevent some parasites. 3. Low stocking density of the fish reduced an incidence of edwardsiellosis or gliding bacterial disease. 4. Removal of the diseased fish prevented thd spread of lyphoeystis. 5. So-called $\pi$-water was effective to prevent the fry from some diseases. 6. Immersion of the juvenile in a sodium nifrusylate solution during transportation was effective to prevent gliding bacterial disease. Therapy 1. Sodium nifrustylate or oxytetracycline was effective to cure gliding bacterial disease. 2. Bathing in formalin(150ppm) or freshwater was effective to cure scuticociliatidosis. 3. Erythromycin was effective to cure $\beta$-hemolytic Streptococcus sp. infection. 4. Bathing in a hydrogen peroxide solution(1.5%) was effective to cure white spot disease.

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요추 추간판 수핵 탈출증에 대한 편측 견인의 치료효과 (Unilateral Traction Effects for a Herniated Nucleus Pulposus in the Lumbar Disk)

  • 박지환;권혁수
    • 대한물리치료과학회지
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    • 제2권2호
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    • pp.481-486
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    • 1995
  • Markolf and Morris suggests that the deranged disk and torn annulus have an exellent recovery ability from the position of spine extension, where the posterior annulus is not under stress and the gel can move anterioly. McKenzie explains side gliding as a combination of rotation and side bending, his clinical studies indicate that side-gliding can gel laterally. In conclusion, the prone unilateral traction on the opposite side from the patient's pain along with the other treatment appered to have helped reduce those patient's pain. The method of treatment described in this report is suggested for Korean physical therapists who treat patients suspected of posterolateral herniated nucleus pulposus.

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On determining the flyability of airplane rectilinear trajectories at constant velocity

  • Labonte, Gilles
    • Advances in aircraft and spacecraft science
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    • 제5권5호
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    • pp.551-579
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    • 2018
  • This work is concerned with the motion of propeller driven airplanes, flying at constant velocity on ascending or descending rectilinear trajectories. Its purpose is to provide important features of rectilinear flights that are required for airplane trajectory planning but that cannot be found already published. It presents a method for calculating the amount of fuel used, the restrictions on the trajectory parameters, as inclination and speed, which result from the load factor, the lift coefficient, the positivity and upper boundedness of the power available. It presents a complete discussion of both ascending and descending flights, including gliding. Some original remarks are made about the parameters of gliding. It shows how to construct tables of parameters allowing to identify rapidly flyable trajectories. Sample calculations are shown for the Cessna 182 and a Silver Fox like unmanned aerial vehicle.

유한요소 해석을 통한 활공비행체의 입수충격해석 (Impact Analysis on Water Entry of Gliding Vehicle using Finite Element Method)

  • 김찬규;황영은
    • 한국군사과학기술학회지
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    • 제20권4호
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    • pp.467-473
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    • 2017
  • In this paper, impact characteristics of a water entry gliding vehicle were analyzed using a finite element method. To guarantee the validity of analysis results, a convergence test was performed for several ratios of Euler and Largrange mesh sizes. The impact coefficient was calculated with respect to entry angles and angle of attacks. It can be observed that the impact coefficient was large at a high cross-section gradient and was also affected by cavitation. This study could be useful in the preliminary design stage of a water entry bomb development.

십자형 낙하산의 방향 제어에 관한 풍동시험 연구 (A Wind Tunnel Test for Directional Control of Cruciform Parachutes)

  • 임주창;김범수
    • 한국항공우주학회지
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    • 제34권9호
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    • pp.20-24
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    • 2006
  • 기본적인 십자형 낙하산과 새롭게 고안된 십자형 낙하산의 활강 및 회전 성능을 풍동실험을 통해 정성적으로 비교하여 보았다. 실험 비교 결과 새로이 고안된 낙하산의 활강 성능은 기본 십자형보다 좋았으나 회전 성능은 보다 떨어졌다.

남자 고등부 포환던지기 선수들의 연도 별 기록에 따른 글라이드와 딜리버리 국면의 운동학적 차이 (The Analysis of Kinematic Difference in Glide and Delivery Phase for the High School Male Shot Putter's Records classified by Year)

  • 박재명;장재관;김태삼
    • 한국운동역학회지
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    • 제23권4호
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    • pp.295-306
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    • 2013
  • The purpose of this study was to provide high school male shot putters training methods of gliding and delivery motion through comparative analysis of kinematic characteristics. To accomplish this purpose, three dimensional motion analysis was performed for the subjects(PKC, KKH, YDL) who participated in high school male shot putter competition on 92nd (2011), 93rd (2013) National Sports Festival. The subjects were filmed by four Sony HXR-MC2000 video cameras with 60 fields/s. The three-dimensional kinematic data of the glide, conversion and delivery phase were obtained by Kwon3d 3.1 version. The data of the shoulder rotational angles and projection angles were calculated with Matlab R2009a. The following conclusions had been made. With the analysis of the gliding and stance length ratio, the gliding length was shorter at the TG than the SG with short-long technique but the gliding and stance length ratio was 46.8:53.2% respectively. The deviation of the shots trajectory from APSS(Athlete-plus-shot-system) revealed that the PKC showed similar to "n-a-b-c-I" of skilled S-shape type, KKH and YDL showed "n-a-d-f-I'" of unskilled type. Furthermore, they showed smaller radial distance from the central axis of the APSS and the shots were away from the linear trajectory. From this characteristics, The PKC who performed more TG than SG had shorter glide with S-shape of APSS(skilled type) showed the better record than others with technical skill. But KKH and YDL had bigger glide ratio with "n-a-d-f-I'" of unskilled type and improved their records with technical factor. The projection factor had an effect on the record directly. Because PKC maintained more lower glide and transition posture with momentum transfer through COG's rapid horizontal velocity respectively the subject possessed the characteristics of high horizontal and vertical velocity with large turning radius from shot putter to APSS.