• Journal of the Korea institute for structural maintenance and inspection
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• v.22 no.4
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• pp.42-51
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• 2018

Verticality problem during the installation process in offshore wind turbine substructures could degrade the safety of the whole structures. Therefore, in this paper, the design of vertically adjustable transition piece(T.P.), using a PS anchor and grout of anchor socket in concrete gravity based substructure(G.B.S.), was proposed. T.P. was designed for 5MW offshore wind trubine and can adjust up to $0.5^{\circ}$ in verticality, occurred during installation. The design plan for each members and design procedure for T.P. was proposed. Then based on the proposed design, actual design targeting sea of Jeju-island was carried out. Finally, by use of non-linear 3D Finite Element Analysis(F.E.A.), evaluation of design was performed. As a result of evaluation, by checking load transfer mechanism and stress of T.P, proposed design was considered safe up to $0.5^{\circ}$ of adjustment.

• Journal of the Economic Geographical Society of Korea
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• v.19 no.4
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• pp.712-728
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• 2016

This study examines the foundations of contract farming, the extent of corporate vertical coordination, and farmer's land use in regards to the contract farming between discount store and watermelon farmers in Buyeo-gun, Chungcheongnam-do. In the above case, contract farming is led by the group of producers. As the corporate's role is limited due to the specification of watermelon breed, contract farming takes the form of procurement contract with restrained levels of corporate vertical coordination. Thus, it has become common for contract farmers to freely enter and leave contracts and sign contracts with multiple clients. Furthermore, farmers participate in contract farming by using contract breeds in existing crop rotation systems. Through this process, watermelon farming is undergoing a process of diversification via the spread of contract varieties in this region.

• Journal of Science and Technology Studies
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• v.3 no.1 s.5
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• pp.105-156
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• 2003

This paper aims to explore the cause and aspect of inter-ministerial policy conflict and its coordination in science and technology policy-making with the case of science and technology basic law-making process in Korea. This law-making processes are analysed through the three periods for the last 10 years starting 1992, such as law-formulation(1st) period, interim law-making (2nd) period, and final law-making(3rd) period. Based on these steps, it tries to concretely describe the phenomenon of policy conflict and the coordination mechanism among government departments and analyses the characteristics of dynamic interaction and mutual adjustment among the related agencies. The analysis is mainly focussed on the underlying causes and determinants of policy conflict, the development and coordination process of the conflict, the strategies and logics of the conflict participants, and eliciting some policy implications for effective policy coordination among government departments. Research results are summarized as follows. First, in science and technology policy-making the main causes of policy conflict among government departments are attributed to the difference of policy-orientation and jurisdiction-orientation of each agency. During the first period, the main aspect of policy conflict was policy-oriented, during the second, the main aspects of policy conflict were both policy-oriented and jurisdiction-oriented, and during the third, policy-oriented conflict was dominant. Second, the dominant typology and strategies of policy coordination which the participants used were vertical-political and horizontal-analytic approach. During the first period, horizontal and analytical approach were used, during the second, horizontal and political approach are mixedly used, and during the third, vertical and political approach were dominantly used. Third, The Korean National Assembly and the ruling party played a pivotal role in science and technology policy-making process(the basic law-making process) in particular during the final period.

• Proceedings of the KOSOMBE Conference
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• v.1996 no.11
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• pp.29-32
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• 1996

기존의 안과 진단 및 치료 기기의 안구 고정장치는 진단 및 치료에 있어서 피검사자와 검사자에 사이에 충분한 협조가 되지 않을 경우 진단의 비효율성과 치료의 안정성등의 문제가 발생하고있다. 따라서 이러한 문제를 보완하기 위하여 SLO의 전면 세극등을 소형의 반사경으로 대치하고 표시등을 후면의 먼거리에 수직으로 배열시켜서 피검사자에게 적당한 높이의 고정등을 선택하게하여 수직방향의 안구 위치를 고정시키고 SLO(Scanning Laser Ophthalmoscope)의 좌우 회전기능으로 표적의 수평방향을 근절시킨 후에 검사자의 조작으로 원격조정되는 서보장치를 이용하여 다시 반사경을 전방향으로 미세하게 회전되게하여 정확한 위치로 안구를 이동시키게 하는 원격조정 표적 추적장치를 개발하였다. 이에 따라 피검사자는 거울에 비친 먼거리의 허상을 보게 되어 세극등을 이용한 근접주사방식의 단점인 안구의 축동, 폭주등으로 인한 환자의 눈의 피로를 최소화하면서 피검사자의 안구를 검사자가 원하는 위치로 고정시킬 수 있게 함으로써 임상실험에서 안과 진단의 정확성과 관리도를 높이고 치료의 효율성과 안전성을 증가시킬 수 있는 원격조정 추적장치로써의 성능을 확인하였다.

• Journal of the Korean Professional Engineers Association
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• v.18 no.2
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• pp.46-53
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• 1985

• Proceedings of the Korean DIstribution Association Conference
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• 2006.08a
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• pp.3-20
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• 2006

• Korea Journal of Geothermal Energy
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• v.3 no.2
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• pp.3-10
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• 2007

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 1998.04a
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• pp.24-24
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• 1998

미사일의 수직 발사 시스템은 수송 및 발사에 필요한 공간을 작게 차지하고 간편하여 각국이 선호하고 있다. 그러나 미사일이 수직발사 초기에는 매우 낮은 속도로 상승하므로 미사일의 방향조정용 Fin의 공력이 발생하지 않기 때문에 초기에 Jet Vane 등의 기계장치를 이용 추력의 방향을 제어하여 마사일의 방향을 목표로 향하도록 하는 Controller가 필요하게 된다. 본 Controller는 DC Motor와 감속기를 이용하여 Vane을 제어 할 수 있도록 설계되어 있으며 1차적으로는 지상 시험용 Controller를 개발 완료된 상태에 있다. 추후 실제 사용하기 위한 Controller를 만들기 위해서는 Main 유도장치와의 상호 Interface 관계를 고려하여 설계되어야 하며 소량 경량화 및 충분한 신뢰성을 갖춘 Controller를 개발하여야 한다.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1991.11a
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• pp.180-187
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• 1991

차량현가장치는 주로 운행중 승차감(ride quality)을 향상시키고, 현가장치의 변위(rattle space)를 제한된 범위안에 있도록 유지시켜 주며, 조정안정성(handling performence)을 향상시켜 주는 기능을 수행한다. 승차감을 향상시켜 주기 위해서는 도로 수직입력 및 횡풍등에 의한 외란으로 부터 스프링상질량을 절연 시켜야 하며, 조정안정성을 향상시키기 위해서는 타이어와 지면과의 접촉력변화를 최소화시키면서 타이어가 도로형상을 비슷하게 추종해야 한다. 또한 스프링상 질량과 스프링하 질량과의 충돌이 없이, 또한 현가장치의 각 링크기구들도 충돌없이 일정한 공간내에서 움직여야 하므로 현가장치의 변위는 제한조건내에 존재하여야 한다.(중략)

• Journal of Platform Technology
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• v.10 no.4
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• pp.70-81
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• 2022

In this paper, we proposed a Virtual Machine Placement (VMP) method to provide live vertical scaling services for cloud resources. Since free space on the physical server must be secured in advance for vertical scaling, a "general-mixed-vertical" mode conversion algorithm based on the FirstFit placement strategy that variably adjusts the allocation ratio of virtual servers to physical servers for this purpose is presented. Simulations were performed using parameters such as vertical scaling ratio, virtualization ratio, and free resource ratio. When the vertical scaling ratio is 50%, considering free space, 150% of resources are required as a whole, but simulation results of the proposed algorithm show that only up to 125% of free space is required.