• 대한정형도수물리치료학회지
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• 제2권1호
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• pp.39-49
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• 1996

The techniques of joint mobilization and traction are used to improve joint mobility or to decrease pain by restoring accessory movements to the shoulder joints and thus allowing full, nonrestriced, pain-free range of motion. In the glenohumeral joint, the humeral head would be the convex surface, while the glenoid fossa would be the concave surface. The medial end of the clavicle is concave anterioposteriorly and convex superioinferiorly, the articular surface of the sternum is reciprocally curved. The acromioclavicular joint is a plane synovial joint between a small convex facet on lateral end of the clavicle and a small concave facet on the acromion of the scapula. The relationship between the shape of articulating joint surface and the direction of gliding is defined by the convex-concave rule. If the concave joint surface is moving on a stationary convex surface, gliding occur in the same direction as the rolling motion. If the convex surface is moving on a stationary concave surface, gliding will occur in an opposite direction to rolling. Hypomobile shoulder joint are treated be using a gliding technique.

• 한국전문물리치료학회지
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• 제2권2호
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• pp.108-118
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• 1995

The techniques of joint mobilization and traction are used to improve joint mobility or to decrease pain by restoring accessory movements to the shoulder joints and thus allowing full, nonrestriced, pain-free range of motion. In the glenohumeral joint, the humeral head would be the convex surface, while the glenoid fossa would be the concave surface. The medial end of the clavicle is concave anterioposteriorly and convex superioinferiorly, the articular surface of the sternum is reciprocally curved. The acromioclavicular joint is a plane synovial joint between a small convex facet on lateral end of the clavicle and a small concave facet on the acromion of the scapula. The relationship between the shape of articulating joint surface and the direction of gliding is defined by the Convex-Concave Rule. If the concave joint surface is moving on a stationary convex surface, gliding occur in the same direction as the rolling motion. If the convex surface is moving on a stationary concave surface, gliding will occur in an opposite direction to rolling. Hypomobile shoulder joints are treated be using a gliding technique.

• Archives of Reconstructive Microsurgery
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• 제19권2호
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• pp.108-111
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• 2010

Purpose: In reconstructing a defect on the dorsum of the hand, there are many cases of extensor tendons exposed or even missing. The repaired or reconstructed tendons need relevant gliding environment for good functional recovery. The anterolateral thigh flap offers a vascular fascial component with large amounts that can be used for covering exposed tendons and we report a unique case of single-stage hand dorsum and gliding surface reconstruction. Methods: A 35-year-old man had severe post-traumatic scarring in his left dorsal hand and coverage of the flap with split-thickness skin graft has been done before. After scarred skin excision and extensor tendon graft for missed part, a free anterolateral thigh adipofascial flap was used to resurface the hand dorsum and to reconstruct a two-layer gliding surface of the extensor tendons. The extensor tendons were wrapped in the fascial component with the fat layer inside. Results: He had an uneventful postoperative course without infection, dehiscence and flap necrosis. Good overall functional recovery and tendon excursion were observed. He was also satisfied with postoperative appearance. Conclusion: A free anterolateral thigh adipofascial flap was used successfully for reconstruction of a two-layer tendon gliding surface to treat a patient with severe scarring in the dorsal hand.

• 한국미생물·생명공학회지
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• 제30권3호
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• pp.199-205
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• 2002

활주운동은 편모의 작용없이 고체의 표면을 미끄러지듯이 이동하는 박테리아의 운동방식으로 분류학상 다양한 종의 박테리아에서 발견된다. 지금까지 밝혀진 바에 의하면 활주 운동은 type IV pili(Tfp)를 필요로 하는 경우와 이를 필요로 하지 않는 두 가지로 크게 구분될 수 있는데, Tfp를 필요로 하는 경우에는 T룰의 확장과 수축에 의해 이루어지는 twitching motility와 운동기작이 흡사할 것으로 추정된다 Tfp를 필요로 하지 않는 활주운동에 대해서는 여러 다양한 모델이 제시되었는데, 이중 한 모델은 활주박테리아가 점액을 분출함으로서 추진력을 얻어 앞으로 진행한다는 설명이며, 다른 모델들은 외벽에 세포 전체를 감싸는 운동기구가 존재한다는 것이다. 이와 같이 활주운동은 일반적으로 잘 알려진 편모에 의한 운동과는 전혀 다른 운동방식에 의해 이루어지는데, 그 작용 기작이 매우 흥미로운 반면에 많은 부분들이 풀어야 될 숙제로 남아있어 앞으로의 연구결과들이 기대된다.

• Journal of Microbiology and Biotechnology
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• 제16권5호
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• pp.771-777
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• 2006

A novel gene (agiA) required for adventurous gliding motility in Myxococcus xanthus has been identified. Null mutations in this gene caused defects in the gliding movement of isolated cells, suggesting that it belongs to one of the A-motility genes. The isolated agiA mutant cells neither glided nor produced slime trails on agar surface. However, agiA was different from other known A-motility genes in that the agiA mutant created in the $S^-$ mutant background glided in the swarm of cells, since other known A-motility mutants created in the $S^-$ mutant background do not move in the swarm of cells. The agiA mutant was also defective in fruiting body development. Sequence analysis predicted that agiA encodes a 787-amino-acid protein with eight tripeptide repeat motifs.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2008년도 춘계학술대회논문집
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• pp.97-100
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• 2008

Various flyers in nature have attracted great interests with a recent need for developing versatile and small-size flight vehicles. In the present study, we focus on the flying fish which has been observed to glide a long distance just above a seawater surface. Since previous studies have depended on the field observation or measurement of the physical parameters only, quantitative data of the flying fish flight has not been provided so far. Therefore, we evaluate the wing performance of the flying fish in gliding flight by directly measuring the lift, drag and pitching moment on real flying fish models (Cypselurus hiraii) in a wind tunnel. In addition, we investigate the roles of wing morphology like the enlarged pectoral and pelvic fins, and lateral dihedral angle of pectoral fins. With both the pectoral and pelvic fins spread, the lift-to-drag ratio is larger and the longitudinal static stability is enhanced than those with the pelvic fins folded. From the glide polar, we find that the wing performance of flying fish is equivalent to those of medium-size birds like the petrel, hawk and wood duck. Finally, we examine the effect of water surface underneath the flying fish and find that the water surface reduces the drag and increases the lift-to-drag ratio.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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• pp.764-767
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• 2005

Photoaligning polymers usually possess "sofe" surface, containing flexible groups and provide relatively small anchoring energy($W<10^{-2}$ erg $cm^{-2}$). In this case field-induced reorientation of director on the aligning surface is essential. We have shown that surface director reorientation can modify the aligning surface and result in gliding of the axis of easy orientation of LC. this phenomena together with adsorption/desorption of ions in electric field cause strong sticking effect in LCDs photoaligning materials. We proposed a method of decreasing of the sticking effect based on irradiation of the photoaligning surface by an unpolarized light.

• 한국군사과학기술학회지
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• 제16권6호
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• pp.733-738
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• 2013

A guidance kit transforming a general purpose bomb into an air-to-surface gliding bomb was developed. This guidance kit consists of a flight kit and a tail kit. Flight kit contains deployable wing, GPS/INS integrated navigation system, guidance and control system. Also this guidance kit was designed to use neither electrical nor mechanical interface with aircraft, and to increase dramatically the survivabilities of pilot and aircraft with the high accuracy and the mid-range non-powered gliding capability.

• 한국항공우주학회지
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• 제41권4호
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• pp.314-318
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• 2013

국내 최초로 개발되는 공대지 유도키트에 대하여 미국의 MIL-HDBK 및 STANDARD를 준용한 시험을 성공적으로 수행하였다. 각종 지상시험을 통하여 유도키트의 작동 성능과 내구성을 검증하였으며, 유도키트를 일반목적폭탄에 장착한 활공탄으로 비행시험을 수행하여 중거리 활공비행성능 및 정확도가 매우 양호함을 확인하였다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.310-313
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• 2008

Recently, study on the weak interaction energy between the soft polymer surface and liquid crystals has been a primary topic for new LC device applications. In this paper, to understand the switching property of nematic liquid crystals (LCs) at the interface with a weak anchoring boundary, we investigate experimentally the rotation property of surface nematic director by electric field on non-treated Poly-Methylmethacrylate (PMMA, $T_g=110^{\circ}C$, Sigma Aldrich) film observed under various temperatures including the glass transition temperature ($T_g$) of the polymer layer.