• Journal of the Korea Safety Management & Science
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• v.23 no.1
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• pp.81-94
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• 2021

In SMEs, technological innovation is recognized as an important tool in terms of sustainable growth. This study analyzed the determinants of technological innovation by using the information of the corporate panel DB composed of local SMEs. The internal factors were added with technological innovation capacity and production capacity and the industrial cluster environment was first applied to external factors. Also, whether the industrial cluster environment influences technological innovation through R&D capabilities, the mediating effect was tested with the Sobel Test. Among the internal and external factors, the most important determinant was marketing ability, and a policy was proposed to develop measures to increase R&D capability with mediating effect. Among the technological innovation variables, which are dependent variables, the most determinant factor was the proportion of new product sales. For this, it is considered that additional research such as longitudinal research with the concept of repetition and parallax using the corporate panel DB is necessary.

• Journal of Agricultural Extension & Community Development
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• v.25 no.2
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• pp.85-97
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• 2018

This study aims to investigate the farmer's educational performances Influencing educational satisfaction. In general, the goal of agricultural education is to increase farm performance such as income, sales and perceptions. A survey was used to collect data from 588 farmers to the country extension office. The results of the analysis are as follows. The variables that have a significant effect on satisfaction in this study are as follows. interaction between instructors and farmers, passion of instructors, effectiveness of lectures, educational support, and educational facilities. However, the adequacy of the lecture and the diversity of the contents of education did not explain the satisfaction variable. Discussions on the improvement of farmers' education were made by considering the rejected variables. In conclusion, farmers' education in the field should secure educational diversity. And farmer's education in RDA should develop a new curriculum. Farmer's education in RDA should further strengthen the informal learning.

• Defense and Technology
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• no.10 s.296
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• pp.48-55
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• 2003

미 안보지원역사는 좁은 의미로는 무기와 물품의 지원 및 판매 역사이며, 우리 의지와는 상관없이 세계정세 변화에 따라 국익을 극대화할 수 있도록 변화해 있다. 현 부시 행정부의 안보지원정책은 미래를 위한 "능력에 기초한(Capacity Based)" 모델을 추구하고 있다. 이를 뒷받침하기 위해 기존 NATO 위주에서 구매국 위주 정책으로 변환을 천명하고, 기동성이 떨어지고 유지비용이 많이 드는 무기는 과감히 도태시키고 있다. 이를 추진하기 위해 주요 핵심보직에는 전력기획 및 협상을 주도할 전문가를 보직하고, 대외 군사판매(FMS : Foreign Military Sales)를 자국 경제발전에 적극 활용하고 있다. 이러한 변화의 와중에서 미국은 어떤 특정국가를 챙겨 줄 여유가 없다. 우리 스스로 미국ㄱ의 전략변화와 안보지원관련 법규.제도와 업무수행 절차를 명확히 이해하여 미국의 변화 속에서 민첩히 대응하여 국가이익 차원에서 실리를 추구하는 방향으로 정책이 지향되어야 한다. 미국의 안보지원정책 변화를 정확히 이해하고 지혜롭게 활용함에 따라 국가의 위기가 될 수도 있고 도약의 기회가 될 수도 있다.

• IE interfaces
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• v.16 no.4
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• pp.463-472
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• 2003

In this study we consider the problem of MPS(master production planning) of TFT-LCD(Thin Film Transistor - Liquid Crystal Display) production factory. Due to the complexities of the TFT-LCD production processes, it is difficult to build effective MPS. This study presents an algorithm having a concept of IDPQ(Ideal Daily Production Quantity) that considers line balancing of TFT-LCD production process. In general, the MPS building procedure does not consider line balancing in non-bottleneck processes. MPS without considering line balancing may make ineffective schedule. We present algorithms for building MPS considering factory capacity and line balancing according to the sales order.

• Journal of the Korean Institute of Navigation
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• v.23 no.1
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• pp.85-97
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• 1999

Vessels chartering has contributed to developing Korean shipping industry over the past three decades. Vessels chartered by shipping companies have been employed in cross trades as well as in the Korean foreign trade to achieve their business strategy. Meanwhile, some problems such as speculation, sales-oriented expansion with poor margin, poor forecasting capacity, over excessive competition in cross trades among Korean owners, and lack of speciality in decision-making, have played adverse roles in promoting chartering business in Korea. There(ore, this paper aims to discuss motives for vessel chartering business and its significance in the Korean shipping industry and to identify problems in the business.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.53 no.1
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• pp.67-72
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• 2004

This paper addresses the bidding strategies of generating firms in a competitive market where the firms are provided with payment for generating reactive power. Reactive support for voltage control is an integral and critical part of power system operations. Since reactive support is unbundled in a competitive market under open access transmission, it is treated as one of ancillary services. The operation costs and opportunity costs for reactive support are compensated by payment to the firms, hence their bidding strategies will be affected. The opportunity costs are evaluated from the foregone profits of a generator in making sales in real power market by providing reactive support instead of real power. Game theory approach is used to analysis the transaction strategies of real power by the bimatrix method in this paper. Through computing the Nash equilibrium in a sample system, an incentive of a generator for improving the reactive generating capacity is found to be effective and the variations of the profits are analyzed as the demand power factor changes.

• Journal of Institute of Control, Robotics and Systems
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• v.20 no.7
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• pp.750-755
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• 2014

Product shortage which causes backordering and/or lost sales cost is very popular in chemical industries, especially in commodity polymer business. This study deals with backordering cost in the supply chain optimization model under the framework of process-inventory network. Classical economic order quantity model with backordering cost suggested optimal time delay and lot size of the final product delivery. Backordering can be compensated by advancing production/transportation of it or purchasing substitute product from third party as well as product delivery delay in supply chain network. Optimal solutions considering all means to recover shortage are more complicated than the classical one. We found three different solutions depending on parametric range and variable bounds. Optimal capacity of production/transportation processes associated with the product in backordering can be different from that when the product is not in backordering. The product shipping cycle time computed in this study was smaller than that optimized by the classical EOQ model.

• Proceedings of the Safety Management and Science Conference
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• 2002.05a
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• pp.135-143
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• 2002

On a conceptual point of SCM, as a order of development, physical distribution, logistics management, basic supply chain management and advanced supply chain management etc. they are magnifying gradually, confusing with information and analysis techniques which seems possible. But on executing, it has a lot of problems because it is so complex and wide, so the enterprise which knows necessity of SCM, they don't have a total execution solution. On this paper, we will focus a proposal of alternatives with reasonableness of manufacturing and making a profit of sales department like most of enterprises to overcome carelessness and unready strategy of investment. And we will find a element through a analysis of cases, a statistical method of effective SCM, and actual survey to propose a alternative proposal. And, we will prove the facts that it could be a guiding company which has a ability of cooperation with entities through the founding of supply chain.

• The Journal of Asian Finance, Economics and Business
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• v.1 no.1
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• pp.41-45
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• 2014

New technologies and techniques to extract natural gas and gas liquids, as well as petroleum, from shale rock have greatly altered expectations for North America's capacity to produce energy products. As a result of innovations such as hydraulic fracturing, some government, industry, and academic observers have predicted that the United States will soon become energy self-sufficient and possibly become a net exporter of natural gas and petroleum. This paper will cover literature review and measure the potential impacts on economic growth and development. Fracking, renewable energy are just a few of the things that have reshaped the energy picture over the past 20 years, how much it will change in the next 20 years and the impacts on the economy will be discussed.

• Journal of the Korea Society of Computer and Information
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• v.5 no.2
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• pp.158-164
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• 2000

The purpose of this study is concerned with evaluating management performance in electronics and communication companies using DEA(Data Envelopment Analysis) DEA is a linear programming based technique for measuring the relative performance of organizational units where the Presence of multiple inputs and outputs makes comparisons difficult. In this research. input variables are raw-material costs, number of employees, and production capacity Real production, sales revenue and net earning are suggested as output variables. Management performance of most companies are increased or equal during 97 and 98 fiscal year and input & output variables show high correlation.