• 한국벤처창업학회:학술대회논문집
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• 2006.11a
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• pp.141-157
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• 2006

Ten years have passed since the establishment of KOSHBA (Korea Small and medium enterprises Hybrid Business Association). KOSHBA is composed of over 400 regional groups; over 4,000 enterprises are participating in the association. This paper deals with a survey on the present status of the participating companies in HBA of Kangwon province including the motivation of participation, participating period, and the purpose of participation. The survey results show that they are participating in HBA for manpower interchange, information gathering, mutual utilization of management resources, and their company's growth. To become a dynamic and vital association, it is necessary to share, learn, and discuss their managerial problems based on mutual trust and respect at the regular monthly meeting.

• International Commerce and Information Review
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• v.7 no.3
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• pp.113-133
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• 2005

North Korea has stressed Information Technology in policy fostering science as Kim Jong-il has been interested in IT industry. In view of development of e-business in Northeast Asia, South Korea is to cooperate with North Korea. It is the time to look into the current situation, strategy and issues of IT in North Korea. Although North Korea is forced to select the development of IT Industry as growth engine, the problems in the IT Infrastructure are as follows:lack in communication infrastructure, lack in diversity of software, low level of hardware, limited use of internet. This paper deals with the IT Infrastructure of North Korea and IT and e-Commerce Cooperation, introduction of e-Trade between South and North Korea.

• Kyungpook Mathematical Journal
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• v.47 no.3
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• pp.311-322
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• 2007

This paper deals with space Beltrami system with three characteristic matrices in even dimensions, which can be regarded as a generalization of space Beltrami system with one and two characteristic matrices. It is transformed into a nonhomogeneous $p$-harmonic equation $d^*A(x,df^I)=d^*B(x,Df)$ by using the technique of out differential forms and exterior algebra of matrices. In the process, we only use the uniformly elliptic condition with respect to the characteristic matrices. The Lipschitz type condition, the monotonicity condition and the homogeneous condition of the operator A and the controlled growth condition of the operator B are derived.

• Proceedings of the KIEE Conference
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• 2002.11b
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• pp.47-49
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• 2002

Recently, the power system has a trend of a sustaining growth in electric power demand with large-sized formation. In this situation, current states can be definitely comprehended to operate security and economic power system. Also, corrective actions must be performed for the violation of bus voltage and line overload. In the security and economy with on-line, It is desirable that the situations of violation are promptly removed to operate power system effectively. This paper deals with the development of application, Kangyang Steel Works' Power System Guidance System, for voltage and overload correction on base case using Generator-Voltage Sensitivity List(GVSL) and Generator Shifter Factor List(GSFL). Also, to show the superiority and economical efficiency of the proposed application, we simulate the Kangyang Steel Works' Power System.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2005.11a
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• pp.61-62
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• 2005

The present article deals with in situ post annealing of ZnO in sputtering system. The ZnO thin films were grown at low temperature of $100^{\circ}C$ and at working pressure of 15 mTorr with RF magnetron sputtering. Having been gown, ZnO thin films were annealed in situ at different temperatures, at annealing ambient pressure of 15 mTorr and in ambients of oxygen and argon respectively. Through analyses of XRDs, it is can be concluded that the crystallinity of annealed ZnO thin films becomes much better than that of as-grown ZnO thin film.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2014.10a
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• pp.175-176
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• 2014

The paper deals with the development of the multi-layer plant production systems using a sunlight and LED. Nowadays most of plant production systems have been developed by plant factory using only LED. In case of plant factory using LED, however, the light quantity is not sufficient for various kinds of medicinal plants. In this paper, authors have tried to apply the both the luminous sources using a natural sunlight and an appropriate LED. During the daytime, a natural sunlight was applied using the Heliostat, while in the nighttime, LED was used. The proposed mixed plant production system was constructed under the various environmental conditions such as $CO_2$ distribution, temperature and humidity. Through the hybrid plant prodution systems, the growth of Ginseng plants were recorded and demonstrated by CCD camera and monitoring program.

• Proceedings of the Safety Management and Science Conference
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• 2006.11a
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• pp.269-278
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• 2006

Ten years have passed since the establishment of KOSHBA(Korea Small and medium enterprises Hybrid Business Association), KOSHBA is composed of over 400 regional groups; over 4,000 enterprises are participating in the association. This paper deals with a survey on the present status of the participating companies in HBA of Kangwon province including the motivation of participation, participating period, and the purpose of participation. The survey results show that they are participating in HBA for manpower interchange, information gathering, mutual utilization of management resources, and their company's growth. To become a dynamic and vital association, it is necessary to share, learn, and discuss their managerial problems based on mutual trust and respect at the regular monthly meeting.

• The Journal of Fisheries Business Administration
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• v.24 no.2
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• pp.83-97
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• 1993

Since the last decade, the fisheries industry in Korea has faced many difficulties in terms of comparative economic advantage partly because of marine environmental damage caused by Pollution and coastal reclamation, and partly because of too expensive production factors like labor. In addition, new order of world trade created by Uruguay Round will force the Korean fisheries industry to prepare some remedies including a joint-venture business with China for international compatativeness. As a result, this paper mainly deals with an analysis on feasibility of Sino-Korean joint cooperation in fisheries business. Especially, the Shandong Province in China is expected to take advantage of its geographical proximity to Koreas well as of its abundance in marine natural resources in order to achieve a fast economic growth. Thus, for the next decade to come, it would be very important for the Korean fisheries industry to cope with the international fisheries market by the Sino-Korean joint-venture combining the capital and technology from Korea with the cheap labor and favorable marine environment for aquaculture from China.

• Structural Engineering and Mechanics
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• v.15 no.4
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• pp.463-476
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• 2003

This paper deals with nonlinear asymmetric dynamic buckling of clamped laminated angle-ply composite spherical shells under suddenly applied pressure loads. The formulation is based on first-order shear deformation theory and Lagrange's equation of motion. The nonlinearity due to finite deformation of the shell considering von Karman's assumptions is included in the formulation. The buckling loads are obtained through dynamic response history using Newmark's numerical integration scheme coupled with a Newton-Raphson iteration technique. An axisymmetric curved shell element is used to investigate the dynamic characteristics of the spherical caps. The pressure value beyond which the maximum average displacement response shows significant growth rate in the time history of the shell structure is considered as critical dynamic load. Detailed numerical results are presented to highlight the influence of ply-angle, shell geometric parameter and asymmetric mode on the critical load of spherical caps.

• Transactions of the Korean Society of Mechanical Engineers
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• v.12 no.6
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• pp.1320-1326
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• 1988

This paper deals with the behavior of surface crack growth and the characteristics of surface micro-crack distribution under creep and creep-fatigue with 1 min. and 10 min. of load holding times at 593.deg.C, in air. The test specimen is a plate type with a small artificial defect of type 304 the small defect has been carried out by the surface replica method and optical microphotography. The experimental results have been interpreted from the view-point of fracture mechanics. It can be concluded that the longer the hold time the longer the total life time. Most of surface micro-cracks initiate at grain boundaries before the specimen reaches 20% of its total life time, a few of them lead to fracture by coalescence with the main crack.