• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권1호
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• pp.110-132
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• 2019

To ensure reliable and secure communication in heterogeneous cellular network (HCN) with imperfect channel state information (CSI), we proposed a coordinated multipoint (CoMP) transmission scheme based on dual-threshold optimization, in which only base stations (BSs) with good channel conditions are selected for transmission. First, we present a candidate BSs formation policy to increase access efficiency, which provides a candidate region of serving BSs. Then, we design a CoMP networking strategy to select serving BSs from the set of candidate BSs, which degrades the influence of channel estimation errors and guarantees qualities of communication links. Finally, we analyze the performance of the proposed scheme, and present a dual-threshold optimization model to further support the performance. Numerical results are presented to verify our theoretical analysis, which draw a conclusion that the CoMP transmission scheme can ensure reliable and secure communication in dense HCNs with imperfect CSI.

• 기술혁신학회지
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• 제4권1호
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• pp.96-109
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• 2001

The aim of this paper is to analyse the impacts on domestic production, value added, employment and import substitution of national technological information activities, using the 1995 Input-Output Tables in Korea. The total output of technological information amounted to 4,167 billion won at current prices. The total domestic output of 2,318 billion won was generated directly and indirectly and the amount of value added totaled 3,773 billion won. 119 thousand new jobs were created and total import substitution amounted to 1,346 billion won. As an increase of 4,167 billion won in technological information sector led to an increase of 7,437 billion won in total socio-economic repercussion effects, the multiplier was 1.8 in 1995.

• Journal of Information Technology Applications and Management
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• 제31권1호
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• pp.27-43
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• 2024

This study investigated technological and managerial barriers in technology startups through a survey of 151 companies, yielding 118 responses (78.1% response rate). Factor and multivariate analyses identified two distinct barriers: technological and managerial. Reliability analysis validated the measurement tool. Using MANCOVA, 12 hypotheses were tested, incorporating six independent variables. Results revealed significant disparities in technological and managerial barriers based on establishment type, commercialization goals, growth stage, and commercialization stage, with 5 hypotheses supported. This study highlights the crucial role of these variables in understanding barriers within technology-based startups.

• 한국비블리아학회지
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• 제26권3호
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• pp.83-100
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• 2015

본 연구는 중소기업의 과학기술정보 요구 및 제공 실태를, KISTI 부산, 울산, 경남지원에 지원을 요청한 1,059개 중소기업을 대상으로 파악하여 개선방안을 제언하기 위해 수행되었다. 분석결과, 첫째, 부울경은 중소기업의 96.3%가 소기업(중기업 3.7%)이고, 전체 중소기업의 31%가 10인 이하의 R&D 인력을 갖추고 있을 정도로 기업과 R&D환경이 열악하였다. 둘째, KISTI에 정보지원을 요청한 중소기업이 3년간 평균 0.2%에 불과하였다. 셋째, 요구 유형별로는 시장동향(26.8%), 산재권(22.1%), 사업제안(19.9%), 아이템발굴 (16.8%), 품질인증(8.4%) 순이었다. 지원정보는 과학기술정보조사, 시장조사, 번역, 정보활용세미나 등이다. 지원에 따른 성과는 기술개발개선 및 제품출시 379건, 기술인증 88건, 특허/실용신안 출원등록 414건으로 파악되었다. 이상의 결과를 토대로 중소기업이 자력으로 R&D 정보를 활용하는데 어려움이 있는 만큼, 가칭 동남권과학기술정보지원센터를 설치할 것, 지역 특화산업분야 정보전문가를 양성할 것, KISTI의 중소기업 정보지원 인력과 예산을 확대할 것을 제언하였다.

• 한국자기학회:학술대회 개요집
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• 한국자기학회 2007년도 The 1st International Symposium on Advanced Magnetic Materials
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• pp.287.2-287.2
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• 2007

• 한국자기학회:학술대회 개요집
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• 한국자기학회 2007년도 The 1st International Symposium on Advanced Magnetic Materials
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• pp.158.2-158.2
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• 2007

• 한국자기학회:학술대회 개요집
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• 한국자기학회 2007년도 The 1st International Symposium on Advanced Magnetic Materials
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• pp.127.1-127.1
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• 2007

• 통상정보연구
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• 제12권2호
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• pp.325-355
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• 2010

Knowledge-based exporting companies in Korea have reached a stage to develop new technological innovation and to pioneer new markets. But, developing new technologies and launching new products require an enormous sum of money for Research and Development(R&D) and there is still uncertainty in technological development and markets. Therefore, through open technological innovation, they are encouraged to actively use external technological sources and ideas. They also need to enhance the efficiency of the relatively little R&D investment. In this paper, firstly, it conducts a precedent study on the concept and influence factors of knowledge-based exporting companies and open technological innovation. Secondly, it sets a study model and estimates a regression coefficient to analyze the influence factors of open technological innovation of knowledge-based exporting companies which are using external resources on the process of innovation. Through case study and empirical analysis, we are going to find the implication of open technological innovation and prepare the way of the innovation for the knowledge-based exporting companies. According to the empirical analysis, variables such as firm size, processing degree, product life, patent registration, maintaining internal security didn't have positive effects on open innovation performance. On the other hand, research capability and market preoccupancy had positive effects. Therefore, to succeed in open innovation, knowledge-based exporting companies not only need to secure research capability through open innovation, but also need to preoccupy the market through commercialization of developed product.

• 정보학연구
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• 제2권1호
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• pp.163-175
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• 1999

기술혁신은 모든 산업에 있어 차별적 경쟁우위의 주요한 원천이 되면서 동시에 기업의 많은 자원이 투자되는 경영활동이라고 할 수 있다. 따라서 많은 성공적인 기업의 이면에는 반드시 뛰어난 기술혁신과 이를 위한 투자가 있다. 그러나 기술혁신투자가 모든 경우에 바람직한 성과로 직결되는 것은 아니며 생산전략 및 생산활동과 효과적으로 연계되어야만 가능할 것이다. 본 연구는 Abernathy St Utterback(1975)의 기술혁신모형을 국내 전자산업을 대상으로 실증적으로 검증하고 기술혁신이 생산전략 및 생산활동과 어떠한 상관관계를 가지고 있는지를 분석하였다. 따라서 이러한 연구결과를 바탕으로 기술혁신이 기업성과에 미치는 영향에 관한 규범적 연구의 토대를 구축하는 것이 본 연구의 궁극적 목표이다.

• 기술혁신연구
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• 제16권1호
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• pp.215-237
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• 2008

KIPRIS patent database was analyzed for identifying the technological status of Daedeok Innopolis Biocluster. It was found that the pattern of activities among various technological areas in Daedeok Biocluster is similar to that of an advanced country rather than those of other cities in Korea. The technological growth in Daedeok Innopolis Biocluster is in the progressive stage, which may be due to the innovative activities rather than the rise in the number of new firms or institutes. The concentration of technology in Daedeok Innopolis Biocluster is a favorable condition for the innovation activities. The trend for the technological concentration was remarkably consistent with the growth curve that a population increases according to the logistic equation. The logistic growth may be represented by the result of competition due to the limited resource allocation and then innovation cluster is corresponding to the ecosystem composed by biological individuals. There is strong competition in Daedeok Innopolis Biocluster in around 2009, so the government might make a policy to encourage the technological diversity for healthy knowledge ecosystem.