• Title/Summary/Keyword: Joint development

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Strategies for Promoting Trade and Foreign Direct Investment between Korea and Vietnam (한국과 베트남의 무역 및 투자협력 증진방안에 관한 연구)

  • Kim, Jeong-Ho
    • International Commerce and Information Review
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    • v.7 no.4
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    • pp.435-453
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    • 2005
  • This paper suggests several strategies for promoting Trade and Foreign Direct Investment cooperation to the Korean government and companies as follows ; For Korean government, its trade policy would be given much weight on the import from the Vietnam in the early developing stage. This import could be compensated and increased with the counter export of Korean products like the industrial goods. For Korean companies, they would make haste to invest and develop the abundant energy and natural resources in Vietnam. Their desirable strategies would be moving small scale projects into large ones, production partnerships with the foreign developed and experienced companies, and international joint ventures for using inward FDI incentives. The long range vision and perseverance are indispensable for promoting trade and foreign direct investments between and Korea and Vietnam and both parties' win-win results and development in the end.

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Rheumatoid Arthritis (류미티스관절염)

  • Kang, Jeom-Deok
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.14 no.2
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    • pp.16-24
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    • 2008
  • Anatomy: Advanced knowledges of cellular and molecular biology led to the development of therapies of rheumatoid arthritis(RA). Rheumatoid arthritis (RA) is a chronic, recurrent, systemic inflammatory disease and results in major deformity or dysfunction of joints. Etiology: Rheumatoid arthritis is now concevied as autoimmune disease. There have been many trials to define the immunological changes in rheumatoid arthritis. But now pathogenesis and significance of immunoglobulin complement and rheumatoid factor are not full accepted. Syndrome: Joints are characteristically involved with early inflammatory changes in the synovial membrane, peripheral portions of the articular cartilage, and lation tissue(pannus) forms, covers, and erodes the articular cartilage, bone and ligaments within the jiont capsule. Inflammatory changes also occur in tendon sheaths(tenosynovitis), and if subjected to a lot of friction, the tendons may fray or rupture. Extra-articular pathological changes sometimes occur, these include rheumatoid nodules, atrophy and fibrosis of muscles, and mild cardiac changes. Treatment: Tumor necrosis factor(TNF) inhibitor for the treatment of rheumatoid arthritis(RA) induces not only significant improvement of symptoms and signs of RA but also substantial inhibition of progressive joint damage.

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A basic study of reinforcement tools development for Productivity Improvement of Composite PC connection work (합성 PC 구조 접합부공사의 생산성 향상을 위한 철근배근 도구 개발 기초연구)

  • Kim, Geun-Ho;Lim, Chae-yeon;Na, Young-Joo;Kim, Sun-Kuk
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2012.05a
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    • pp.339-340
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    • 2012
  • Green frame is combined by structural steel and reinforcements of Green column and beam and unified by cast-in-place concrete. However, when upper reinforcements penetrate structural steel hole, the execution is difficult due to interference of joint and a rib of deformed reinforcements. Therefore, the objective of this study is to propose the reinforcement tools to improve productivity of precast structure connection construction. The reinforcement tools proposed in this study can be helpful to improve constructability, safety, duration, and cost comparing with conventional reinforcement method since unskilled workers can deal with reinforcements easily.

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An study on the development of BLDC motor and Planetary gearheads for robot joint (로봇 관절용 고출력 BLDC 모터 및 유성 감속기 개발에 관한 연구)

  • Kim, Joo-Han;Rhyu, Se-Hyun;Chung, Jung-Kee;Sung, Ha-Kyeong;Lee, Jong-Bae
    • Proceedings of the KIEE Conference
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    • 2002.11d
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    • pp.135-137
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    • 2002
  • Many application in robotics, telecommunication, automation systems etc require powerful actuator. The powerful actuator have Speeds up to high speed and high output torque efficiencies. To accomplish a powerful actuator, these powerful motor have to be combined with gearheads of the same outer diameter. So, we have developed BLDC motor and planetary type gearheads as powerful actuator. The BLDC motor have advantages that compact structure, high efficiency, high reliability. The Planetary type gearheads have advantages that same-axle structure, high torque transmission, low noise in comparison with spur gearheads. In this study included BLDC motor and planetary type gearheads design, manufacture. This time study peformed for actuator of entertainment robot.

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A Study on Nurturing Human Resources for Digital Cultural Contents: in the Case of Chung-Nam Province (디지털 문화콘텐츠 인력양성 방안에 관한 연구: 충남지역을 중심으로)

  • Jung, Hae Yong
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.6 no.4
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    • pp.199-216
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    • 2010
  • The objectives of this study are to provide advices and methods for cultivating labor in the digital cultural contents industry in the Chung-Nam Province. For the purpose of this study, review of theoretical and practical literature, identifying the present status of affairs, and three times FGI and surveys were executed. The results of research show a lack of professional labor in the digital cultural contents industry; even so most of laborers want to get a job in or around the Seoul region. To activate digital cultural contents in the local area, a development model for the Chung-Nam digital cultural contents industry was introduced and four strategies were also suggested. The nurture of a professional skilled labor force through a strategically designed joint relationship between university and companies in the digital cultural contents industry was found to be quite necessary. In this way, the need for specialized training and education in the university classroom can be supported.

The Development of a Miniature Humanoid Robot System (소형 휴머노이드 로븟 시스템 개발)

  • 성영휘;이수영
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.43-43
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    • 2000
  • In this paper, we introduce a case study of developing a miniature humanoid robot that has 16 degrees of freedom and is able to perform statically stable walking. The developed humanoid robot is 37cm tall and weighs 1,200g. RC servo motors are used as actuators. The robot can walk forward and turn to any direction on even surface. It equipped with a small digital camera, so it can transmit vision data to a remote host computer via wireless modem. The robot can be operated in two modes; One is a remote-controlled mode, in which the robot behaves according to the command given by a human operator through the user-interface program running on a remote host computer, the other is a stand-alone mode, in which the robot behaves autonomously according to the pre-programmed strategy. The user-interface program also contains a robot graphic simulator that is used to produce and verify the robot's gait motion. In our walking algorithm, the ankle joint is mainly used lot balancing the robot. The experimental results shows that the developed robot can perform statically stable walking on even surface.

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Development of Human-Sized Biped Robot (인체형 이족 보행로봇의 개발)

  • 최형식;박용헌;이호식;김영식
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.267-267
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    • 2000
  • We developed a human-sized BWR(biped walking robot) driven by a new actuator based on the ball screw which has high strength and high gear ratio. The robot overcomes the limit of the driving torque of conventional BWRs. Each leg of the robot is composed of three pitch joints and one roll joint. In all, a 10 degree-of-freedom robot with two balancing joints was developed. The BWR was developed to walk autonomously such that it is actuated by small torque motors and is boarded with DC battery and controllers. In the performance test, the BWR peformed nice motions of sitting-up and sitting-down. Through the test, we could find capability of high performance in biped-walking.

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Anterior Impingement Syndrome of the Ankle (발목 관절의 전방 충돌 증후군)

  • Sung, Ki-Sun
    • Journal of Korean Foot and Ankle Society
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    • v.15 no.4
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    • pp.195-200
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    • 2011
  • Impingement syndrome of the ankle is defined as painful mechanical limitation of full ankle movement secondary to osseous and/or soft tissue abnormality. These conditions occur more commonly in active people and athletes probably because recurrent subclinical injury is an important factor in development of the syndrome. Impingement syndromes of the ankle are categorized according to their anatomical site around the ankle joint. Anterolateral, anterior and posterior impingement has been extensively described in the orthopaedic literature. The purpose of this article is to review the clinical feature and management of anterior impingement syndrome of the ankle.

A Study on the Development of the Split-Type Carbon Composite Bicycle Frames (분할형 탄소복합재 자전거 프레임 개발에 관한 연구)

  • Park, Chan Gon;Choi, Young;Kang, Bong Yong;Kim, Eun Gyu
    • Journal of the Korean Society for Precision Engineering
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    • v.34 no.2
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    • pp.139-143
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    • 2017
  • Finite element analysis was performed for a split-type CFRP bicycle frame, which was designed to apply a compression molding process with carbon fiber prepreg for a conventional bicycle. An epoxy adhesive material for joining the frames was selected by the extent of stress at joint interfaces. The split-type bicycle frame was then formed and its weak parts examined by the boundary conditions according to reliability tests. The results verified the reliability of the bicycle frame after modification of these weak parts. The finished product was manufactured by using this developed split-type bicycle frame.

Development of 3D Roughness Measurement System of Rock Joint Using Laser Type Displacement Meter (레이저 변위계를 이용한 암석 절리면의 3차원 거칠기 측정기 개발)

  • 이정인;배기윤;김태혁
    • Proceedings of the Korean Society for Rock Mechanics Conference
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    • 1999.03a
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    • pp.17-23
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    • 1999
  • 본 논문에서는 절리면 거칠기를 정밀하게 수치화 하기 위해 레이저 변위계를 이용한 3차원 거칠기 측정기를 구동시키는 프로그램 제작 및 여러 가지 상태의 절리면에 대해 수치화를 실시하여 각종 거칠기 파라미터를 결정한 후 오차분석을 실시하여 이 기계를 이용한 측정의 타당성을 검증하였다. 동일한 절리면에 대해 물리적인 접촉에 의한 3차원 거칠기 측정기로부터 얻어진 거칠기 파라미터와 레이저 변위계를 이용한 측정기로부터 얻어진 것들 사이의 관계를 살펴보았고, 레이저 측정기에 의해 수치화된 절리면 거칠기 파라미터 사이의 상관관계를 조사하였다. 연구에 사용한 시료는 황등화강암, 여산대리석의 2종류이며, 절리형상 측정을 위한 절리는 인장균열 발생장치를 이용하여 인공적으로 제작하였다. (중략)

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