• 한국전자통신학회논문지
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• 제16권4호
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• pp.675-682
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• 2021

제한된 종류, 제한된 수량의 센서를 사용하여야 하는 환경에서 다양한 상황정보를 획득하여야 하는 수요가 나타날 수 있다. 본 연구에서는 제한된 숫자의 센서를 사용하여야 하는 환경에서 한정된 센서를 사용하면서도 이전보다 다양한 상황정보를 획득하기 위한 새로운 방안을 제안하였다. 이를 위하여 생물학 분야에서 큰 관심을 얻고 있는 Exon-Intron이론에서 실마리를 얻어 이를 기초로 다양한 상황정보 획득 방안을 제안하였다. Exon-Intron의 선택적 자르기 및 조합 방안과 같이 각 센서의 이벤트들을 효율적으로 자르고 각 이벤트 데이터들을 조합하여 활용함으로써 획득하는 상황정보의 다양화를 실현할 수 있었다.

• 벤처창업연구
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• 제11권6호
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• pp.1-9
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• 2016

본 연구에서는 KOSPI, KOSDAQ 상장기업이 인수주체가 되어 스타트업을 피인수 대상으로 인수합병한 경우, 단기적으로 인수기업의 주가에 미치는 영향을 분석하였다. 연구대상기간은 외환위기의 영향을 고려하여 외환위기가 발생한 이후인 2002년 1월부터 2014년 12월까지로 정하였다. 이 기간 동안 발생한 국내기업의 인수합병사례 총1436건 중 인수기업이 비상장기업인 경우 53건을 제외하고 1383건을 연구대상 사례로 선정하였다. 분석 결과, 첫째, 합병공시일 전후 (-2, +1), (-5, +2), (-10, +5)의 기간 동안 발생한 전체표본집단(n=1383)의 인수기업 누적평균 초과수익률(CAR)과 피인수기업이 설립된 지 5년 이내 신생기업(이하 '스타트업'으로 표기)인 부분표본집단(n=468)의 인수기업 누적평균초과수익률을 비교한 결과, 전체 표본집단의 경우 인수기업은 모든 구간에서 유의하지 않은 누적초과수익률을 보인 반면, 스타트업을 합병한 경우에는 모든 구간에서 유의한 양(+)의 누적평균초과수익률을 보였다. 이는 스타트업과의 인수합병이 인수기업의 기업가치에 긍정적인 영향을 미친다는 것을 보여주고 있다. 둘째, 스타트업이 상장기업일 경우에는 모든 구간에서 통계적으로 유의하지 않은 누적초과수익률을 보이는데 반해, 비상장 스타트업 기업을 합병할 경우에는 모든 구간에서 양(+)의 누적평균초과수익률을 나타내었다. 이는 스타트업 기업의 인수합병 시에도 일반적인 합병에서 나타나는 상장효과(Listing effect)가 존재하고 있음을 보여주는 것이다. 셋째, 하이테크 산업에 속한 스타트업을 합병할 때 비(非)하이테크 산업에 속한 스타트업을 합병하는 것보다 더 높은 초과수익률을 올리는 것을 확인할 수 있었다. 본 연구는 스타트업과의 인수합병 공시효과에 대한 국내의 첫번째 연구로서 그 의의가 크다고 할 수 있다.

• International Journal of Industrial Entomology and Biomaterials
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• 제11권1호
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• pp.79-79
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• 2005

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 1999년도 추계학술대회-지능형 정보기술과 미래조직 Information Technology and Future Organization
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• pp.111-120
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• 1999

Although the concept of viewing knowledge as a critical resource has been widely accepted in prior studies, it is not fully understood how to acquire available knowledge in order to improve organizational effectiveness. However, it si sure that organizational knowledge management should pursuit the achievement of the business goal by delivering relevant and useful information to the right person at the right time. Group Support System (GSS) can play an important role to transfer scatter information into meaningful business knowledge for supporting strategic corporate decision-making. This study proposes a fuzzy GSS framework for acquiring workgroup knowledge from individual memory and aggregating workgroup knowledge to organizational knowledge. This study also proposes an architecture to support the fuzzy GSS framework. The architecture consists of user agents, information management agents, and a fuzzy model manager. To illustrate how the fuzzy GSS framework can be used to support the whole process of organization knowledge acquisition, an Internet-based GSS was developed and applied in a marketing decision process. It showed that the framework was effective for acquiring organizational knowledge.

• 한국군사과학기술학회지
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• 제16권2호
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• pp.199-206
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• 2013

In general, radial velocity of a target can be obtained by acquiring doppler frequency shift in case of a doppler radar, or can be obtained by acquiring range rate in case of a pulse radar. Then radial velocity can be converted to tangential velocity using aspect angle or position variation per unit time. These two ways have the same meaning in physically, but result in different uncertainty finally. In this paper, it is described not only the two transformation procedures to calculate tangential velocity from radar measurement data, but also the result of combined uncertainty comparison between these two procedures.

• 지식경영연구
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• 제12권1호
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• pp.111-121
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• 2011

Multinational Corporations (MNCs) are establishing globally-distributed R&D centers around the world. Firms can overcome resource constraints and achieve superior innovative performance not only by using internal resources but also acquiring knowledge from oversea R&D centers. This paper explores the key factors that have been cited as significant influences on the ability to transfer knowledge, an important area of knowledge management of MNCs. Also, we identify the emerging outcomes in terms of R&D transfer and for the education, employment, and retention of knowledge works in MNCs. The result will be helpful for both MNC's managers and governments' decision makers with respect to R&D centers.

• 한국유기농업학회지
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• 제16권2호
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• pp.151-171
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• 2008

The objective of this paper is to evaluate the feasibility of exporting Korean organic agricultural products to Japanese market. To achieve the objective, we explored the marketing trend of organic agricultural products in Japan and surveyed marketing dealers and food processors that deal with organic foods. We also analyzed Korean farmers' intention of acquiring organic Japanese Agricultural Standard(JAS) certificate in order to export organic agricultural products. The results show that mini tomato is economically feasible to acquire organic JAS certificate but other agricultural products need more attentions. The results also suggest that the education of production and safety management using the international standards such as Japanese Agricultural Standard should be strengthened by local government to promote export of organic agricultural products. The paper implies that producers acquiring organic Japanese Agricultural Standard should be systematization to get larger scale and to guarantee the stability in export supply.

• 한국언어정보학회지:언어와정보
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• 제7권1호
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• pp.87-99
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• 2003

This paper investigates the role of input frequency in the acquisition of verb argument structures based on distributional information of a corpus of utterances derived from the English CHILDES database (MacWhinney 1993). It has been widely accepted that children successfully learn verb argument structures by innate language mechanisms, such as linking rules which connect verb meanings and its syntactic structures. In contrast, an approach to language acquisition called “statistical language learning” has currently claimed that children could succeed in acquiring syntactic structures in the absence of innate language mechanisms, making use of distributional properties of the input. In this paper, I evaluate the feasibility of the statistical learning in acquiring verb argument structures, based on distributional information about locative verbs in parental input. The naturalistic data allow us to investigate to what extent the statistical learning approach can and cannot help children succeed in learning the syntax of locative verbs. Based on the results of English database analysis, I show that there is rich statistical information for learning the syntactic possibilities of locative verbs in parental input, despite some limitations in the statistical learning approach.

• Journal of Electrical Engineering and Technology
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• 제12권6호
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• pp.2289-2297
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• 2017

Applying a periodic load torque to an AC motor generates a ripple, which is synchronized to the frequency of the periodic load torque, at the speed of the motor. Consequently, numerous studies have focused on reducing the speed ripple caused by the load torque. However, it is difficult to reduce the speed ripple when there is a time delay in acquiring speed information, such as that from a sensorless control. Therefore, we propose a speed control method for reducing speed ripples caused by a periodic load torque when there is a time delay in acquiring the speed information. The proposed method is verified by conducting simulations using the Simulink program from MATLAB, and by applying the method to an actual motor in which speed ripples occur due to a periodic load torque that is synchronized with the speed of the motor.

• 경영과학
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• 제22권1호
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• pp.127-148
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• 2005

This study aims at identifying the motive and infra that can satisfy them and enable them to succeed by coming out of existing customers control method focused on data and acquiring and applying the knowledge customers have. It also aims at enabling corporations to carry out more developed customer relations. This study will prove that acquiring and applying customers' knowledge is effective and will come up with a stepping-stone to get rid of dangerous factors by having competitiveness in a competitive environment and extending and changing the corporation. For this, the study have identified knowledge-oriented infra that corporations know and customer relations by conducting a poll of local corporations and have presented motives that can effectively carry out knowledge-based customer relations.