• Transactions of the Korean Society of Automotive Engineers
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• v.6 no.5
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• pp.75-85
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• 1998

This paper presents the procedures and technique of the decision on the decision on the mount in a diesel engine development newly. To assess the vibration chara- cteristics of the engine plus transmission, their inertia moments are calculated for three engine versions. i.e., NA(Naturally Aspirated), TC(Turbocharged) and TCI(Turbocharged and Intercooled). These data are used to determine the mount layout and stiffness values affecting the noise quality of an engine as well as a vehicle. The main purpose of this paper is to design the mount rubber having the optimal stiffness characteristics through the investigation of the calculation results and the mount conditions when an engine is installed in a vehicle using the existing engine mount room. Thus, this paper describes the optimal mount positions, rubber stiffnesses, natural frequency, mode shapes and so on using ADAMS program to apply the newly developed engines to three different vehicles.

• Proceedings of the KIEE Conference
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• 1988.11a
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• pp.84-1-84-4
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• 1988

To obtain both lift and guidance forces, either seperate vertical and horizontal reaction rails with a ssociated magnets may be used, or a pair of magnets each latterally staggered relative lo the rail center line may be empolyed. This paper deals with the latter design, and shows that the heave and sway motions arc decoupled by linearization for small heave and sway displacement and for large sway displacement. However. there are some cowpling factors because of parameter variation nonlinear effects, which are compensated.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.375-381
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• 2017

A full-scale field test was conducted to investigate the arching effect of an embankment pile. The arching effect calculated from the test results was compared with theoretical values. Measurements obtained from a load cell and an earth pressure cell during the field test reflected the arching effect of the embankment pile well. The arching effect measured by load cells for an embankment height of 3m or less was smaller than the theoretical value with the assumption of plain strain.The measured effect for a height of 4 m or more was larger than the theoretical value. In contrast to the consistent decrease of the theoretical arching effect, the arching effect obtained from the field test shows continually increasing trends. The arching effects calculated from the earth pressure cells were greater than those from the theory under the plain strain assumption, but the trend was similar to the theoretical one. The arching effects measured by the earth pressure cells an embankment heights of 2, 3, 4, 5, and 6 m were 1.05, 1.23, 1.29, 1.28, and 1.29 times greater than those from the theory under the assumption of plain strain. The arching effects from the field test were much greater than those from the theory under the installation of a pile grid.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.458-459
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• 2008

본 논문은 폭넓은 전기환경 실증연구가 가능한 실규모 HVDC 시험선로의 설계 및 구축에 대해 소개한다. 국내 실정에 적합한 초고압 가공 직류송전(HVDC)선로 설계를 위해서는 전기적인 환경 장애를 일으키지 않는 환경친화적인 설계 및 건설에 대한 대안이 마련되어야 한다. HVDC 선로의 전기적인 환경영향은 주로 (+)극과 (-)극에서 발생하는 이온의 흐름에 의한 이온전류 밀도, 대전전압, 지표면전계강도 등 이온류(Ion流)의 영향과 초고압 송전에 따른 코로나 영향에 대해 검토하는 것이다. HVDC 실규모 시험선로는 요크, 특수 애자련, 특수 arm을 사용하여 철탑의 극간 배치, 도체 배치 변경 및 지상고 변경이 가능하도록 winch를 채용하여 절연설계 조건의 유동성, 환경, 지지물, 송전기자재, 경제성 및 운용의 효율성을 종합적으로 고려할 수 있도록 특수한 형태로 설계하여 각종 전기환경 실증연구가 가능하며 국내 환경 특성에 적합한 최적 극배치 좌표 도출이 가능하도록 구축되었다. 본 논문은 상용 가공 HVDC 송전방식의 적용에 앞서 현재의 상황을 고려한 전기환경 실증 연구가 가능한 실규모 HVDC 시험선로의 설계 및 구축에 대하여 기술하였다.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.36 no.3
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• pp.69-78
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• 2020

This study is designed to find out the role and relation of the Nemok-dori support members in order to clearly specify the structure of the Dapogye architecture which adopts the Nemok-dori. The dori at the eaves in the Dapogye architecture was expanded to include Oemok-dori, Jusim-dori and Nemok-dori in cooperation with the bracket. The Oemok-dori is used to lengthen the eaves and the Jusim-dori makes the reasonable transfer of loads while the Namok-dori contributes to the stability of the building through the balancing of the bracket. Nemok-dori is located higher than Oemok-dori or Jusim-dori, depending on the slope of Jangyeon and the distance of Chulmok. But as it is not directly supported by bracket or beam, it needs an independent support. The vertical support of Nemok-dori is selectively involved with Cheomcha, lower Jangyeo, support Wall and upper Jangyeo. As the time went by, the vertical height increased, thus making the omitted members less. The horizontal support of Nemok-dori is made in various ways. There are also special cases such as the Nemok-dori □ type chain structure for small rectangular buildings, the 'Nemok-dori = Jung-dori' type for the buildings having small sides and the 'Nemok-dori = Meongechangbang' type appearing on the lower part of the Bankanmulrim type middle height buildings. The horizontal support of Nemok-dori usually uses either the support of the Toeryang type member, the support of beam directed Hwaban or the support through overlaying of internal Jegong. As the time went by and the number and distance of Chulmok increased, the multiple support structures acted together rather than as one support structure. Nemok-dori got stabilized as it has both the vertical and horizontal supports and this support structure also has he role of decoration.

• Journal of Korean Society of Steel Construction
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• v.18 no.6
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• pp.697-706
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• 2006

Tower crane's wall tie is generally used for extending of mast height according to rising of lifting height. In order to get wall tie member force this problem, this study concerning wall tie is based on load data described in manual book of 290HC model. This study made the equation of wall tie member force and computer programming for calculating wall tie member force and then get ${\theta}-P$ curves(angle-wall tie force). After considering the ${\theta}-P$ curves, optimum angle range ($48.4^{\circ}{\sim}77.2^{\circ}$) about wall ties (A), (C) members was obtained. Member force of wall tie (B) was changed from tension to compression or from compression to tension at $74^{\circ}$ in service and $54^{\circ}$ in out of service. When both horizontal force($H_A$) and torsional moment ($M_D$) were varied from (+) to (-), wall tie force(A, B, C) were changed almost symmetrically about ${\theta}$-axis. Because this study was based on wall tie analysis conditions, wall tie members in symmetric and ideal geometry shape used for analizing wall tie of tower crane, it is necessary to have more careful verification in order to apply generally the results of this study.

• The Southeast Asian review
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• v.27 no.1
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• pp.53-94
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• 2017

Thai political regime is said to have returned to bureaucratic polity or semi-democracy. However this kind of perspective do not find the political interference of Privy Council which is a body of Monarch of Thailand. Therefore this paper tries to discover the unique traits of Thai way of constitutional monarchy which can be defined as the modern form of absolute monarchy. In short Thai way of constitutional monarchy based on network politics is contradictary to the normal constitutional monarchy whose norm is "the king reigns, but does not rule." This means Thai king is in politics not above politics in reality. Thai monarchy has interfered in diversive way in terms of mediating political conflicts and protecting the monarchy as a institution. In this process the king has been worshiped as demigod who practises the Buddhist doctrine and the centre of national integration. Even after the 6 Ocober 1976 massacre which the palace involved King Bhumibol Adulyadej's sacred position was not challenged. Rather $l{\grave{e}}se-majest{\acute{e}}$ law became more draconian for status quo. Since then $l{\grave{e}}se-majest{\acute{e}}$ was cited as one of the major rationale for the military coup. The 2006 coup which was triggered by the clash between network Monarchy and bourgeois polity based on Thakin network marked a surge of the $l{\grave{e}}se-majest{\acute{e}}$ cases. The 2014 coup had consecutively increased the number of $l{\grave{e}}se-majest{\acute{e}}$ prisoners. It can be said that the modern form of absolute monarchy in Thailand including bureaucratic polity, semi-democracy and democracy is bounded by $l{\grave{e}}se-majest{\acute{e}}$ law which network monarchy players such as military, intellectuals, Democrat Party and even some civil society groups support.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.7 no.2
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• pp.195-205
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• 2012

This study examines runaway youths at risk in a youths' shelter who are preparing for an independent life and both the facilitating and adverse factors to personal characteristics and independence of runaway youths at risk with the aim to grasp their recognition of independence and level of desire for it and find out necessary factors for a successful independence in multidimensional perspectives including the economic independence, educational independence, psychological independence, and social independence for their sound growth. This will provide the basis for desirable interventions for youths runaway youths at risk to prepare for an independent life. The findings of this study on the factors that affect the preparation for an independent life are as follows: First, as a result of analyzing the effect of micro-systematic factors on the preparation for an independent life, it turned out that problem-solving abilities and self-efficacy had influence on the preparation for a career Second, as a result of analyzing the effect of mesoscopic-systematic variables on the preparation for an independent life, it turned out that the preparation for a career were affected by whether to participate in independence preparation programs and institutional supports, and that career maturity of runaway youths at risk were affected only by the relationship with teachers and participation in independence preparation programs. Third, as a result of analyzing the effect of macro systematic variables on the preparation for an independent life, it turned out that the preparation for a career were affected by participation of the local community and service network, and that participation of the local community was an predictor variable that would affect a career maturity of runaway youths at risk. Fourth, as a result of analyzing ecological systematic variables that might affect the preparation for a career, it turned out that intervening variables and macro systematic variables had the most powerful influence on the preparation for a career among runaway youths at risk. It is necessary, therefore, to provide education programs organized by policies in order to develop problem-solving abilities and vocational capabilities so that runaway youths at risk, and to train and appoint more professional teachers at shelters. Programs for independence preparation need to be developed actively and practically in consideration of the characteristics of shelters, and the network with the local community for support also need to be established in utilization of the human resources and service programs of the community. With the understanding of leaving home of runaway youths at risk as the previous stage of an independence, there should be a housing support for their stable settlement in the perspective of housing welfare until become adults. In addition, there should be education specialized programs for occupation and careers to train runaway youths at risk as professionals including such areas as health, mentality, learning, and voluntary work for their sound growth.