• Title/Summary/Keyword: 중소규모발전

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Development of Integrated NG Fuel Processor for Residential PEMFC system (가정용 고분자연료전지 시스템을 위한 통합형 천연가스 개질기 개발)

  • Seo Yutaek;Seo Dong Joo;Jeong Jin Hyeok;Yoon Wang Lai
    • 한국신재생에너지학회:학술대회논문집
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    • 2005.06a
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    • pp.231-234
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    • 2005
  • 수소 기반의 에너지 사회는 중소규모 분산 발전과 연료 전지 자동차에서 시작될 거라는 예측이 지배적이다. 가정용 고분자 연료전지 시스템은 상업화에 가장 가까운 소규모 분산 발전 시스템중의 하나이며, 에너지기술연구위원에서는 가정용 고분자 연료전지에 수소를 공급하기 위한 천연가스 수증기 개질시스템의 개발을 진행해 왔다. 효율 향상과 제작의 용이성, 그리고 소형화에 초점을 맞추어 개발된 prototype-I은 $2.0Nm^3/hr$의 순수 수소 생산 용량을 가지고 있으며, 수증기 개질기와 수성가스 전이 반응기 수중기 생성 장치, 그리고 반응열 공급에 필요한 버너 등을 이중 동심원관에 통합한 형태이다. 수중기 개질과 수성가스 전이 반응을 거쳐 나오는 개질 가스의 조성은 $72.3\%\;H_2,\;4.8\%\;CH_4,\;0.7\%\;CO,\;22.2\%\;CO_2$이며, 이때 S/C 비율은 2.5였다. 고분자 연료 전지 공급 시 요구되는 CO 농도가 10ppm 이하이기 때문에, 본 시스템에는 선택적 산화 반응기를 2단으로 설치하여 CO. 농도를 10ppm 이하로 낮추어주었다. 전체 시스템의 열효율은 LHV 기준으로 $68\%$. Prototype-I의 운전을 통해 설계 개선안을 도출하였으며, 이를 적용해 제작한 prototype-II가 시험 운전 중이다,. 통합된 개질 시스템에서는 각 단위 반응기사이의 열교환을 최적화하여 단위 반응들이 적정 온도 범위에서 일어나도록 유도하는 것이 중요하다. Prototype-II는 수증기 개질 반응기와 WGS 반응기, 수증기 생성 장치 사이의 열교환율을 향상시켜 농도를 $2.5\%$로 감소시키면서 CO의 농도는 $1\%$이하로 유지하였다. 이 결과를 바탕으로 얻어진 메탄 전환율은 $87\%$이고, 열효율은 LHV 기준으로 $75\%$이다. 아울러 개선점을 적용한 선택적 산화 반응기를 제작하였다. 개질 가스와 산소의 혼합을 유도하고, 반응기 온도의 제어를 통해 선택적 산화 반응의 속도와 선택성을 향상시키고자 한다. 시스템의 운전을 통해 메탄 전환율과 열효율의 개선을 진행할 예정이다.

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A Study on the development of the road to local economy (도로성장과 지역경제에 관한 고찰)

  • Lee Yong-Su;Shin Ho-Nam
    • Korean Journal of Construction Engineering and Management
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    • v.5 no.3 s.19
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    • pp.114-119
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    • 2004
  • A road is an infrastructure that helps boost up growth of local economy, connections among local communities and living conditions. For South Korea the increase in infrastructures like roads now concentrates on specific regions, which causes regional imbalance. also, some areas are faced with the overall weakness of local economy such as decrease in local tax revenues, slowdown in industrial and economic growth of regions, and the low independence of local finances because lack of roads, a basis of local economic growth, make big and smaller business reluctant to invest in localities. In addition, even though the power-centralized age turns to a decentralized age, the preference of development policies by the existing economic size rather than those of nationwide balanced development gets the economic gap of localities deeply-rooted; moreover, disparity of local wealth has a tendency to even differentiate the overall quality of living. The paper intends to analyze relations between road development and local economy focused on road construction, one of requisites to balance national development and accelerate local economy.

A Study on Energy Saving Monitoring System of Data Center based on Context Awareness (상황인지 기반 데이터센터의 전력절감 모니터링 시스템에 관한 연구)

  • Lee, Hwa-Jeong;Jung, Min-Yong;Kim, Chang-Geun;Kim, Hyun-Ju
    • Journal of Convergence for Information Technology
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    • v.9 no.1
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    • pp.19-27
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    • 2019
  • In recent years, with the advancement of IT technology, we expect data size of the world to increase 10 times in 2025. The rapid development of this Internet technology leads to the downsizing of the server system of the data center which manages and operates the data, the capacity of the storage medium, and the power consumption of the data center. In this paper, we propose an energy conservation policy and analyze it in real time by analyzing the power consumption pattern of the server system of the data center. The proposed system can monitor and analyze the power consumption pattern of the individual server system in the data center, and it can be expected that about 10% of the total power consumption of the data center will be saved by efficiently managing the actual operation time of the server system.

Analysis on the core factors in the successful importing of ERP system in Small & Medium Enterprises - Focusing on the Cooperation Model between Industry and Education in Chung-Buk province (중소기업 ERP 시스템 도입 핵심성공요인 분석 -충북지역 산학연계 모델을 중심으로-)

  • 김범년;김영렬
    • Journal of Korea Society of Industrial Information Systems
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    • v.8 no.3
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    • pp.51-60
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    • 2003
  • In the radical char]go of the business environments that the existing facilities can not guarantee the business-frosts anymore, enterprises have been importing ERP system. In Korea, Sam-sung Electronics did it for the first tin in the latter half of 1994 and other enterprises succeeded. Currently, government and public enterprises as well as most of the large enterprises are employing ERP system to sharpen the competitiveness and to win the business transparency. On the other hand, it is harder for small and medium enterprises shaded by the large enterprises to be well-equipped with information system such as ERP, because they have already suffered from chronic financial difficulties and shortage of many resources. Most of all, they prefer the short-term project that does not need much tine for them to make decisions and to carry out fully. Grounded on the above factors, in this work, I suggest the suitable ERP model for the small and medium enterprises and the successful importing process of ERP, which is derived from the previous researches made by other masters' thesis. If necessary information and human resources are interchanged pertinently between local education institute and small and medium enterprise, the latter could not only deal with the confronted difficulties successfully inside and outside but attain the goal of being proficient in up-to-minute high technology. Besides, giving the students the opportunity of researching into the practice of the business they have not ever known, local universities could help their students accumulate knowledges and acquire ideas which could not be achieved in pure academic studies. When the above-mentioned procedure is over, the students might get the intellectual faculty to ponder on the future more concretely and enter a profession more carefully. In the result, we would raise up the percentage of the employment among the graduates. And active participation of university professors is the last important factor that assists the small and medium enterprises for introducing ERP system successfully. Their scholarly attainments play an important role in strengthening local economy and make the business competitiveness balanced between the capital and the local economy.

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A Study on the Strategies of Growth in Small & Medium Construction Firms (강원지방 중소건설업의 성장전략에 관한 연구)

  • Kim, Beom-Jin;Cho, Chang-Jin
    • Korean Business Review
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    • v.19 no.1
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    • pp.53-80
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    • 2006
  • This research has been accomplished to build up the growth strategies of Kangwon district's small & medium-sized construction firms. For this purpose, we made an investigation of the present situation and status for existing regional small & medium construction firms by analyzing data. Based on the results from this study, the following growth strategies are suggested to gain their competitive advantages. Firstly, most of all, the role of the top manager is the most important factor since most of the top manager for the small & medium-sized construction firms coincide with the owner the firms. Secondly, the specialization strategy is to establish. Above all they concentrate their business capacities on core business. Then, this growth strategy should be based on the selective escalation of functions in order to maintain an appropriate level of construction works. Thirdly, the specialized skills and skilled workers are ensured for competitive advantages. For human resource development, they should train workers to be multi-functioned on the assumption the they could stay at firm until they wish to retire. Finally, the government must also spare no effort to encourage the small & medium-sized construction firms to build up it's competitive power and cultivate it's spontaneous generation power though the reformation of system related whit the small and medium construction industry.

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Study on the effect of small and medium-sized businesses being selected as suitable business types, on the franchise industry (중소기업적합업종선정이 프랜차이즈산업에 미치는 영향에 관한 연구)

  • Kang, Chang-Dong;Shin, Geon-Chel;Jang, Jae Nam
    • Journal of Distribution Research
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    • v.17 no.5
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    • pp.1-23
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    • 2012
  • The conflict between major corporations and small and medium-sized businesses is being aggravated, the trickle down effect is not working properly, and, as the controversy surrounding the effectiveness of the business limiting system continues to swirl, the plan proposed to protect the business domain of small and medium-sized businesses, resolve polarization between these businesses and large corporations, and protect small family run stores is the suitable business type designation system for small and medium-sized businesses. The current status of carrying out this system of selecting suitable business types among small and medium-sized businesses involves receiving applications for 234 items among the suitable business types and items from small and medium-sized businesses in manufacturing, and then selecting the items of the consultative group by analyzing and investigating the actual conditions. Suitable business type designation in the service industry will involve designation with priority on business types that are experiencing social conflict. Three major classifications of the service industry, related to the livelihood of small and medium-sized businesses, will be first designated, and subsequently this will be expanded sequentially. However, there is the concern that when designated as a suitable business type or item, this will hinder the growth motive for small to medium-sized businesses, and designation all cause decrease in consumer welfare. Also it is highly likely that it will operate as a prior regulation, cause side-effects by limiting competition systematically, and also be in violation against the main regulations of the FTA system. Moreover, it is pointed out that the system does not sufficiently reflect reverse discrimination factor against large corporations. Because conflict between small to medium sized businesses and large corporations results from the expansion of corporations to the service industry, which is unrelated to their key industry, it is necessary to introduce an advanced contract method like a master franchise or local franchise system and to develop local small to medium sized businesses through a franchise system to protect these businesses and dealers. However, this method may have an effect that contributes to stronger competitiveness of small to medium sized franchise businesses by advancing their competitiveness and operational methods a step further, but also has many negative aspects. First, as revealed by the Ministry of Knowledge Economy, the franchise industry is contributing to the strengthening of competitiveness through the economy of scale by organizing existing individual proprietors and increasing the success rate of new businesses. It is also revealed to be a response measure by the government to stabilize the economy of ordinary people and is emphasized as a 'useful way' to revitalize the service industry and improve the competitiveness of individual proprietors, and has been involved in contributions to creating jobs and expanding the domestic market by providing various services to consumers. From this viewpoint, franchises fit the purpose of the suitable business type system and is not something that is against it. Second, designation as a suitable business type may decrease investment for overseas expansion, R&D, and food safety, as well negatively affect the expansion of overseas corporations that have entered the domestic market, due to the contraction and low morale of large domestic franchise corporations that have competitiveness internationally. Also because domestic franchise businesses are hard pressed to secure competitiveness with multinational overseas franchise corporations that are operating in Korea, the system may cause difficulty for domestic franchise businesses in securing international competitiveness and also may result in reverse discrimination against these overseas franchise corporations. Third, the designation of suitable business type and item can limit the opportunity of selection for consumers who have up to now used those products and can cause a negative effect that reduces consumer welfare. Also, because there is the possibility that the range of consumer selection may be reduced when a few small to medium size businesses monopolize the market, by causing reverse discrimination between these businesses, the role of determining the utility of products must be left ot the consumer not the government. Lastly, it is desirable that this is carried out with the supplementation of deficient parts in the future, because fair trade is already secured with the enforcement of the franchise trade law and the best trade standard of the Fair Trade Commission. Overlapping regulations by the suitable business type designation is an excessive restriction in the franchise industry. Now, it is necessary to establish in the domestic franchise industry an environment where a global franchise corporation, which spreads Korean culture around the world, is capable of growing, and the active support by the government is needed. Therefore, systems that do not consider the process or background of the growth of franchise businesses and harm these businesses for the sole reason of them being large corporations must be removed. The inhibition of growth to franchise enterprises may decrease the sales of franchise stores, in some cases even bankrupt them, as well as cause other problems. Therefore the suitable business type system should not hinder large corporations, and as both small dealers and small to medium size businesses both aim at improving competitiveness and combined growth, large corporations, small dealers and small to medium sized businesses, based on their mutual cooperation, should not include franchise corporations that continue business relations with them in this system.

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Development of a Needs Based Education Course on the Basics of Radiation (수요 분석 기반 방사선 기초 교육과정 개발)

  • Nam, Jong Soo;Won, Jong Yeoul;Seo, Kyung Won;Yoo, Hye Won;Hwang, In Ah
    • Journal of Radiation Protection and Research
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    • v.38 no.2
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    • pp.100-105
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    • 2013
  • With the export of commercial nuclear power plants to UAE and that of a research reactor to Jordan, as well as the additional construction of domestic nuclear power plants, the demand of nuclear manpower is expected to increase sharply. Accordingly, nuclear manpower development is recently becoming an important issue. Major institutes involved in nuclear programs are well equipped with education and training procedures and resources. However, small and medium sized businesses have difficulties to educate their employees due to their limited resources and capacity for the education. Addressing the difficulties, this study is intended to develop and education course in accordance with the "Systematic Approach to Training (SAT)". For this, a survey is conducted on the need of education in small and medium sized businesses, based on which a pilot course on the basics of radiation is developed and operated. An assessment on the development and operation using a survey regarding participants response has shown high grades of performance, i.e. above 4.0 points (full mark: 5.0 points) on each level of expectancy, satisfaction and lecturers' capacity. The experience from this study will be used to develop other programs of nuclear power and ASME code, which are also identified from the need analysis.

The Suggestions for Sustainable Credit Provision Policy System to Overcome Financial Exclusion in Korea (지속가능한 정책서민금융체계를 위한 정책방안 연구)

  • Song, Chi-Seung;Park, Jaesung James
    • Korean small business review
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    • v.41 no.4
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    • pp.87-110
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    • 2019
  • The structural and sustainable implementation of the microfinance policy is required to be successful. To this end, the government should focus on availability and accessibility of the public microfinance, away from providing the beneficial financing (financial benefits)featured by the combination of the welfare and finance in the past. In addition, the government-sponsored microfinance needs to aim for performance-oriented evaluation that leads to stabilization of financial life of ordinary people or increase of income, moving away from conventional funding based on the scale and the quantity for the poor. It is necessary to implement the following policies in order for the Moon's administration to take the government-sponsored microfinance to the next level. The government-sponsored microfinance must be in the market failure domain, but nonetheless, it is required to be managed by structural and sustainable ways so that it complies with the market principles and does not crowd out the private microfinance. Last but not least, making the best use of the capital market function can be a way to fund social enterprises or social economy enterprises. This aims to enable catalyst capital in the capital market to play a prime role for the inflow of private capital for the purpose of creating the social value.

A Present Condition of R&D Supporting Industries: A Search for their Promotion (국내 연구개발 지원산업의 현황분석과 육성방안에 관한 연구)

  • 이장재;박종오
    • Journal of Korea Technology Innovation Society
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    • v.2 no.2
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    • pp.219-232
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    • 1999
  • 연구개발 지원산업은 연구개발 활동을 직·간접적으로 지원하는 산업을 의미한다. 이러한 산업에 대한 개념화는 연구개발 활동의 전문화(professionalization), 분업화(division of labor)가 진행되고 있음을 의미하는 동시에 연구개발체제의 유연성 제고 및 고도화, 효율화가 이루어지고 있음을 나타내고 있다. 우리의 경우 (과학기술혁신을 위한 특별법) 제 15조 등을 통하여 연구개발 지원사업에 대한 특별지원제도의 시행을 명시하고 있으나 현재까지 연구개발 지원사업자를 지정·육성하기 위한 기본현황 파악이나 분석이 이루어지지 않은 실정이다. 본고는 이러한 수요를 반영하여 국내에서의 연구개발 지원산업에 대한 수요를 중심으로 실태를 파악 ·분석하는 동시에 산업지원 육성방안을 제시하고 있다. 국내 연구개발 지원산업의 규모를 추정해 보면 97년 현재 약 3,000억원에서 4,000억원의 규모로 나타나며, 이중 기술정보서비스업이 약 27.0%, 연구장비 및 시험 ·평가 ·검색 ·분석업이 약 38.4%, 연구개발 설계·자문업 등 기타사업이 34.6% 로 나타나고 있다. 연구개발지원 기능은 시험·검사 기능과 기술정보제공 기능이 대부분을 차지하고 있고, 전자의 경우는 내부처리의 비중이 높고 후자의 경우 외부의 전문기관을 이용하는 비중이 높게 나타나고 있다. 특히 기업이 연구개발활동 수행시에 필요한 지원기능을 외부에 위탁할 경우에 느끼는 애로사항은 첫째, 외부 전문위탁기관의 부족 및 정보 미흡이 가장 크고, 둘째, 전문기관의 해외정보력·경쟁력 부족이 다음이며, 공공기관의 지원기능이 미흡하다는 애로사항에 대한 비중이 상대적으로 낮게 나타나고 있다. 연구개발 지원산업을 특별지원·육성하기 위한 기본관점은 특별법의 시행령을 구체적으로 실행하기 위한 시행계획의 수립과 연구개발 지원산업의 육성 시책의 추진 절차의 결정, 사업자 선정, 지원 사항 등으로 제시될 수 있다. 먼저, 기업 연구개발활동의 고도화·효율화를 위해 연구개발 및 기술개량에 필요한 업무 중 기술정보서비스와 연구시험·평가·검사·분석 그리고 중소기업 기술집약화를 지원하는 사업 등을 연구개발 지원산업으로 범위를 정할 필요성이 있다. 다음으로 연구개발 지원사업자를 별도로 선정·인정하는 방식으로 지원해야 할 필요성이 있다. 기존의 산업 지원방식으로는 연구개발 지원기능이 주된 활동으로 인정받을 수 없으므로 국내 연구개발 지원기능의 발전에 한계가 있다. 따라서 취약한 여건을 감안하여 연구개발 지원산업을 육성하지 않게 되면, 각 분야별로 민간사업자의 참여가 거의 이루어지지 않거나, 참여해도 연구개발 지원 기능의 발전보다는 기존의 사업이 주가 될 가능성이 크다. 연구개발 지원 사업자의 지정 지원방식과는 별도로 이루어질 수 있는 지원활동에 대한 지원은 기업회계처리상의 문제와 일관성이 있는 시책추진 및 효과를 기대하기 어렵기 때문에 사전에 동산업의 참여 자격·능력을 갖춘 사업자에 대해서는 제한없이 참여할 수 있도록 Positive System으로 추진해야 할 것이다. 그리고 연구개발 지원사업자에 대한 지원내용을 조세·금융 등 직접적 지원과 타 제도와의 연계지원 그리고 정부구매 등 시장지원 등이 아울러 다양하게 추진될 필요가 있다.

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Growth of Korean Shipbuilding-Allied Industries and Regional Implications (우리 나라 조선관련산업의 성장과 지역적 함의)

  • Woo, Youn-Sub
    • Journal of the Korean association of regional geographers
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    • v.9 no.1
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    • pp.53-65
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    • 2003
  • The aim of this study is to examine the regional features of shipbuilding-allied industries comprehensively. Inaddition, this study would offer groundwork to construct spatial networks of shipbuilding-allied industries. Relatively in short term, large modem shipbuilding firms of South Korea have developed under the national strategic support, around southeast coast region. Although small shipbuilding firms and marine equipment firms have supported regional economy, these firms have scaled down their functions and roles due to the national policy. In the long tenn, Korean shipbuilding-allied industries have limitations in stable development, because they have separated their roles. Consequently it is necessary the balanced development of large, medium, and small shipbuilding firms and linkage system with marine equipment firms for overall development of shipbuilding-allied industries. This study suggests two spatial strategy for shipbuilding-allied industries development. First, we need to construct a shipbuilding specialization area which agglomerates competent parts firms adjacent to large shipyards. Second, in national strategy, a long term strategy is required to utilize extremely synergy and external effects induced from a shipbuilding duster of southeast coast region which systematically combines shipbuilding-allied industries, universities, the government authorities, and research institutions.

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