• Title/Summary/Keyword: 기술 성숙도

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A Study on Telcos' Strategies to Digital Converged Service and Its Prospects; Focusing on TV-based VOD Service (통신사업자의 통신방송 융합사업 진출전략 및 전망 - TV-based VOD를 중심으로 -)

  • 조병선;황호영
    • Proceedings of the Korea Technology Innovation Society Conference
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    • 2003.11a
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    • pp.23-40
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    • 2003
  • 초고속인터넷 접속서비스 시장이 성숙 단계에 접어듬으로써 성장세는 급격히 둔화되고 경쟁환경은 심화되는 과정에서 통신사업자들이 기존의 신규가입자 유치 위주의 정책에서 벗어나 초고속인터넷 가입자 인프라를 기반으로 새로운 부가 서비스 및 차별화 된 서비스의 개발을 통해 가입자 확대 및 ARPU(Average Revenue Per Unit)를 중대 시킬 수 있는 수익원 개발이 절실하다. 이러한 상황하에서 통신방송 융합 서비스는 통신사업자에게 기회와 위협이라는 상반된 현상으로 다가오고 있다. TV-based VOD 서비스는 보다 양질의 멀티미디어 서비스를 원하는 고객의 수요와 신규 고객을 유치하고 가입자를 Lock-in 시키며, 타 통신 사업자의 고객을 자사 고객으로 전환시키고자 하는 차별화 전략의 일환으로 도입되기 시작하였고, 또한 ARPU를 증대 시키고 다양한 수익원 개발의 일환으로 인터넷 접속서비스 외에 부가가치를 창출 할 수 있는 Killer Service로서 주목을 받고 있다. TV VOD 사업이 성공적으로 국내 시장에 정착될 경우, 통신사업자에게는 여러 형태의 수익원 발굴이 가능할 것으로 예상된다. 즉 가입비, 월 이용료, 부가 사용료 등과 같은 포괄적인 형태의 가입비가 주된 수익원이 될 것이이며, pay-per-view(PPV) 형태의 이용료 역시 주된 수익원이 될 것이다. 이 외에도 셋톱박스, 홈게이트웨이/서버 등과 같은 단말기의 임대와 판매를 통한 수익 창출방안과 다른 서비스들과 마찬가지로 광고도 중요한 수익원천으로 활용 할 수 있을 것이며 또한 미디어업체 또는 CP(contents provider)를 대상으로, 보안, 인증, 과금, 결제, 회원 관리, 이용정보 제공 서비스 등도 사업자의 수익원으로 활용할 이 있을 것이다. TV-based VOD 서비스는 망 진화에 따른 차세대 초고속인터넷 서비스 기술인 VDSL이나 Advanced 케이블모뎀을 이용 DVD 급 고화질의 TV-based VOD 서비스가 시작되면서 ARPU를 증대 시키고 다양한 수익원 개발의 일환으로 인터넷 접속서비스 외에 부가가치를 창출 할 수 있는 Killer Service로서 VOD서비스가 주목을 받고 있다. TV-based VOD 서비스는 가입자망의 진화 와 밀접하게 연관되어 전개되는 서비스로 Post-ADSL에 대한 예측과 VOD에 서비스에 대한 설문조사 결과를 토대로 하여 예측 한 바에 의하면 Post-ADSL 가입자는 2003년 153만명에서 2004년 444만으로 증가하고 2006년 987만 명에 이를 것으로 전망되고, VOD서비스 가입의향도 16%에서 2006년 34% 까지 증가하는 것으로 나타났다. 따라서 VOD서비스 가입자는 2003년 24만 명에서 2004년 98만으로 증가하고 2006년 335만 명으로 증가하는 것으로 예측되었다.

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Genetic Diversity of Rana catesbiana Captured on various sites in Korea based on mitochondrial ND1 sequence (미토콘드리아 ND1 유전자 염기서열 비교를 통한 국내 서식 황소개구리의 유전적 다양성 조사)

  • Lee Ji-Young;Shim Jae-Man;Joung Insil
    • Proceedings of the KAIS Fall Conference
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    • 2005.05a
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    • pp.297-300
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    • 2005
  • 1970년대 식용을 위한 양식을 목적으로 일본에서 수입된 황소개구리가 국내 하천과 호서생태계에 큰 피해를 주었으나, 최근 급속히 그 개체수가 줄어든 것으로 추정되므로 이번 연구에서는 국내에 서식하는 북미산 황소개구리의 유전자 분석을 통하여 개체동태군에 대한 유전적 연관을 조사하였다. 이를 위하여 전라남도 지역에서 서식하는 황소개구리를 채집하여 이미 발표된 북미산 황소개구리와 미토콘드리아 ND1/tRNA 유전자 1215bp의 염기서열을 비교, 분석하였다. 북미산과 비교하였을 때 조사한 국내 서식 개체 모두에게 ND1/tRNA 유전자 1개 위치에서 염기변화가 발견되었으나 이는 도입 개체군의 유전자인지 국내 특이변이가 진행된 것인지 확실하지 않다. 또한 조사한 개체 일부에서 유전자 염기서열의 6위치에서의 변이가 발견되었으나 국내 서식 황소개구리는 미국산 황소개구리와의 유전적 차이가 거의 없으며, Kimura-2-parameter 분석결과 국내 서식 황소개구리 개체 내에서 $98.7\%\~100\%$의 높은 유사성을 보여 종내 유전적 차이가 거의 없는 것으로 보인다. Neighbor-Joining과 Maximum Parsimony 분석 결과, cluster를 이루는 개체군의 차이를 보였으므로 개체들이 분화되어 나온 시점과 위치가 다른 것으로 확인되었지만 장흥, 영암, 고흥의 개체가 국내 도입시기의 개체군에 속하며 광주, 남평 지역의 개체군이 고흥의 한 개체로부터 분화되어 나왔음을 추정할 수 있다. 이러한 결과로부터 국내에 서식하는 황소개구리가 도입 후 지역 특이적 분화가 일어났다고 결정하기는 무리가 있으며, 이와 같이 유전적 유전도가 높은 개체들간의 교배에 따른 유전적유전적 다양성의 감소가 최근에 관찰되는 국내산 황소개구리의 급격한 감소원인들 중의 하나일 가능성을 시사한다.년도) 18,756, 2045(년도) 22,595, 시장점유율 증가로 인한 수출액 증가분 누적(억원) : 2015(년도) 3,411, 2025(년도) 8,847, 2035(년도) 14,433, 2045(년도) 18,005 또한 시나리오 비교평가를 실시하여 본 결과, 본 연구에서 정의한 순편익 누적(Cumulative Net Profit) 변수를 적용하면 현재 연구비 추세 대비 $30\%$ 까지 연구비를 증가 시키는 것이 효율적임을 알 수 있었다.성, 생산 용이성, 제품 디자인의 우수한 정도가 a=0.01 수준 하에서 유의적으로 추정되었다. 이들 변수들 중에서 품질경쟁력에 가장 큰 영향을 미치는 측정변수는 제품의 기본 성능, 수명(내구성), 신뢰성, 제품 디자인의 순서로 추정되었다. 이것은 한국 제조업이 아직 산업 디자인이 품질경쟁력에 크게 영향을 미치는 성숙단계에 이르지 못하였음을 의미한다. (2) 제품 디자인에게 영향을 끼치는 유의적인 변수는 연구개발력, 연구개발투자 수준, 혁신활동 수준(5S, TPM, 6Sigma 운동, QC 등)이며, 제품 디자인은 우선 품질경쟁력을 높여 간접적으로 고객만족과 고객 충성을 유발하는 것으로 추정되었다. 상기의 분석결과로부터, 본 연구는 다음과 같은 정책적 함의를 도출하였다. 첫째, 신상품 개발과 혁신을 위한 포괄적인 연구개발 프로젝트를 품질 경쟁력의 주요 결정요인(제품의 기본성능, 신뢰성, 수명(내구성) 및 제품 디자인)과 연계하여 추진해야 할 것이다. 둘째, 기업은 디자인 경영 마인드 제고와 디자인 전문인력 양성을, 대학은 디자인 현장 업무를 통하여 창의력 증진과 기획 및 마케팅 능력 교육을, 정부는 디자인 기술개발 및 디자인 교육지원의 강화를 통하여 각각 디자인 경쟁력$\rightarrow$품질경쟁력을 제고시켜야 할 것이

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Creative Project and Reward Based Crowdfunding:Determinants of Success (창의적 프로젝트와 후원형 크라우드펀딩: 성공요인)

  • Chun, Hesuk
    • The Journal of the Korea Contents Association
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    • v.15 no.5
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    • pp.560-569
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    • 2015
  • Crowd funding is the method of raising money for a project, companies from a large group of people via the Internet, in return for future products or equity. Kickstarter is the largest and most successful crowdfunding site where creative projects raise reward based funding. Drawing on dataset of 80,267 projects with combined funding over $1.3b from 8.1m people, this paper suggest that backer select project based on their preference on the project, instead profitability of the project. It suggests that well-established platform and big size of network increases the chance of success of the project due to a ripple effect and blockbuster effects. Clear communication about the project's idea and goal is highly correlated with success. Regular communication on the project site, such as by constant progress updates, helps the success of the project. Equity-based crowdfunding is emerging as an innovative means of raising capital for businesses, so it has been receiving a lot of attention and expectation from the government and the market. The findings of this paper and others will help to get some understanding and insight into equity-based crowdfunding. However, Kickstarter differs from equity-based crowdfunding in the goals of the backers. Kickstarter's backers are not investors, they are contributors. To understand equity-based crowdfunding, the subject will need further study.

Influence of Air Temperature during the Growing Period on Water Core Occurrence in 'Hongro' Apple Cultivar and the Mitigation Technique (사과 '홍로' 품종의 생육기 기온이 밀증상 발생에 미치는 영향과 경감기술 연구)

  • Park, Moo-Yong;Song, Yang-Yik;Han, Hyun-Hee;SaGong, Dong-Hoon
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.11 no.3
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    • pp.100-110
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    • 2009
  • 'Hongro' is one of the important mid-season apple cultivars bred in Korea. The recent occurrence of water core in Hongro and the consequent problems motivated this study. The objectives of our study were to investigate the influence of air temperature during the growing period on water core occurrence in Hongro and to provide methods to mitigate its impact. Based on our field experiments for three years, the results indicated that the occurrence of water core disorder was due to the prolonged exposure to high temperature ($T_a$) of >$30^{\circ}C$ during the ripening period. The rates of occurrence of water core disorder were higher in the fruit whose weight was more than 300g or those located outside the tree canopy and thus exposed to stronger solar radiation. In terms of mitigating the water core occurrence, the application of spraying $CaCl_2$ four times from late July to August was effective. Furthermore, between 1 and 15 August when the rate of occurrence was high with $T_a$ (from 3:00 to 5:00 p.m.) >$30^{\circ}C$, the micro-water sprinkling for 30 minutes starting at 6:00 p.m. with a supplementary spray conducted two hours after the first application drastically reduced the water core occurrence.

A New Malting Barley Variety, 'Baegho' with Resistance to Barley Yellow Mosaic Virus and Powdery Mildew (보리호위축병과 흰가루병 저항성 맥주보리 신품종 '백호')

  • Kim, Mi-Jung;Hyun, Jong-Nae;Park, Jong-Chul;Kim, Yang-Kil;Lee, Mi-Ja;Kim, Dae-Ho;Kang, Sung-Ju;Kim, Sung-Taeg
    • Korean Journal of Breeding Science
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    • v.43 no.6
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    • pp.538-542
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    • 2011
  • A new malting barley variety, 'Baegho', was developed from a cross between Azuma Golden and Nishinochikara in 1998. An elite line, YMB2139-2B-1-10-2, was selected in 2005 and designated as Milyang137. It showed good agronomic performance in the regional adaptation yield trials (RYT) from 2006 to 2008 and was released with the name of 'Baegho' having high yielding and BaYMV and powdery mildew resistance. The average heading and maturing dates of 'Baegho' were April 21 and May 28, which were 3 and 2 day later than those of Hopum, check variety, at the RYT, respectively. 'Baegho' has shoter culm length (78 cm), more spikes ($1,062per\;m^2$) and heavier 1,000 grain weight (40.7 g) than those of Hopum, respectively. 'Baegho' is resistant to domestic BaYMV strains I, III and IV and powdery mildew at Iksan. In growth habit, 'Baegho' is close to type (IV) that is distinguished from other Korean malting barley cultivars, which could tolerant to premature heading damage that is major concern for the practice of the malting barley cropping. The yield potential of 'Baegho' in the RYT was about 5.57 MT/ha, which is about 13% higher than those of Hopum. This variety has good malting quality in grain and malting analysis showed better 1,000 grain weight, husk rate, diastatic power than those of Hopum. 'Baegho' applied for protection of new varieties of plant in 2009.

A Study on the Concentration of Research Investment in National R&D Projects Using the Theil Index (타일(Theil) 지수를 이용한 국가연구개발사업의 연구비 집중도 분석)

  • Yang, Hyeonchae;Sung, Kyungmo;Kim, Yeonglin
    • KIPS Transactions on Software and Data Engineering
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    • v.8 no.9
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    • pp.355-362
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    • 2019
  • In the past, when research and development(R&D) resources were absolutely scarce, the so-called 'choice and concentration' strategy of national R&D projects has been persuasive. Under the current situation where various actors such as GRIs(Government-funded Research Institutes) and universities supported by more abundant R&D resources conduct national R&D projects, this strategy cannot be applied without distinction. In order to see how the strategy has worked, this paper analyzes the concentration of research funds allocated to actors performing national R&D projects. Concentration is measured based on the amount of research funds supported by government from 2002 to 2016 using the Theil index to break down the concentration of individual actors in the overall national R&D project. The results from the Theil index were compared with concentrations using the Gini coefficient, a widely known indicator. As a result, the Theil index could be used to analyze the concentration and sub-components' contribution such as universities and GRIs that make up the entire national R&D system. The results also showed GRIs had the highest concentration, followed by universities, but their concentration has been somewhat reduced compared to 10 years ago. On the other hand, small-sized companies have maintained a certain level, although they are not highly concentrated. In other words, universities and GRIs tend to reduce the gap in the allocation of research funds among institutions, while small-sized companies tend to distribute them evenly.

The Effect of Consultant competency on the Project performance and Social-relational competency : focus on ICMCI competence framework (컨설턴트역량이 프로젝트성과와 사회관계역량에 미치는 영향 : ICMCI 역량프레임워크를 중심으로)

  • Hong, Yong-Ki;You, Yen-Yoo;Kim, Sang-Bong
    • Journal of Convergence for Information Technology
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    • v.11 no.10
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    • pp.302-313
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    • 2021
  • As the domestic consulting industry matured, consultants were required to have insight into customer's business and consulting business. Gaining these insights requires deep understanding of the business domains and high degree of competencies. This study empirically analyzed the data collected through the survey in order to apply the ICMCI competence model to domestic consultants. As a result of the study, it was found that business competency and technical competency had a positive effect on project performance, but values & behavior competency were not statistically significant. On the other hand, it was found that only technical competency, values & behavior competency had a positive effect on social-relational competency. Through this study, it was confirmed that a deep understanding and perception of the consulting business is necessary to grow into a professional consultant, but there is a limit to generalizing the research results because the characteristics of the population cannot be sufficiently reflected with a small sample.

Yield and Quality of Black Soybean (Glycine max L.) in Paddy Field under Different Sowing Dates (검정콩 논재배에서 파종시기가 수량 및 종실 특성에 미치는 영향)

  • Jo, Yeong-Min;Heo, Byong Soo;Choi, Kyu-Hwan
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.67 no.1
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    • pp.53-60
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    • 2022
  • Recently, Black soybean (Glycine max L. Merr.) is being cultivated in paddy fields instead of rice. However, research related to the effective sowing date is insufficient in paddy fields. This study aimed to identify the sowing date for stable cultivation of black soybean by investigating its yield and seed characteristics in a paddy field. In the study, cultivation experiment with five different sowing dates (May 25, June 10, June 25, July 10, July 25) were conducted in 2019 and 2020. Days from sowing to flowering can be shortened by delaying the sowing date. In the present study, the yield of black soybean in paddy fields was the highest with June 10 as the sowing date and was calculated as 224 kg·10a-1 and 200 kg·10a-1 in 2019 and 2020, respectively. However, the highest values of seed coat cracking was 51.1±5.1% and that of total anthocyanin contents was the 3.99±0.72 mg/g, both of which were observed in 2020 for the experiment with May 25 as the sowing date. Regression analysis showed a positive correlation (R2=0.9312) between soil water contents and seed coat cracking rate during the flowering period. Hence, the soil water contents during the flowering period would have a negative effect on the seed coat development.

The Possibility of Design Creation by Convergence of Contemporary technology and Traditional Craft (신기술과 공예의 융합을 통한 디자인 창작의 가능성)

  • Ha, Euna
    • Korea Science and Art Forum
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    • v.25
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    • pp.463-475
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    • 2016
  • As the transition to the digital age in the late 20th century, the intrinsic value of the craft, the emotional values of human, has been noticed as an alternative to overcome the adverse effects of the modernism of the industrial age. To introduce experimental tries which convergence of contemporary technologies and elements of traditional craft, and to inspire artists and present the new possibility of creation to them who want to take advantage of craft emotion as the elements of creation is the purpose of this study in the current digital technology age. First, the meaning and value of craft in modern times and digital media and hybrid creation environments are theoretically investigated based on previous studies and literature. Second, design cases produced by combining digital technology as a tool and craft elements are classified for substantial understanding of the design. Thirdly, identify the design characteristics presented through case studies and suggest the new possibility of creation. The results of the study are as follows. Reject typical types highlight the functional role and try free express conversion, e.g. form, material, texture, making process etc. Extracts the various elements that can be applied and search combining ways, because the convergence of digital technology and the craft is sufficient to activate the human emotion. Interaction between the craft and the digital medium is made actively. Craft accepts digital form, the craft appeared again as the contents of the digital. the traditional and digital method appropriately fused and utilized depending on the situation in process.

A Flexible Query Processing System for XML Regular Path Expressions (XML 정규 경로식을 위한 유연한 질의 처리 시스템)

  • 김대일;김기창;김유성
    • Journal of KIISE:Databases
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    • v.30 no.6
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    • pp.641-650
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    • 2003
  • The eXtensible Markup Language(XML) is emerging as a standard format of data representation and exchange on the Internet. There have been researches about storing and retrieving XML documents using the relational database which has techniques in full growth about large data processing, recovery, concurrency control and so on. Since in previous systems same structure information and fundamental operation are used for processing of various kinds of XML queries, only some specific query can be efficiently processed not all types of query. In this paper, we propose a flexible query processing system. To process query efficiently, the proposed system analyzes regular path expression queries, and uses $\theta$-join operation using region numbering values to check ancestor-descendent relationship and equi-join operation using parent's region start value to check parent-child relationship. Thus, the proposed system processes efficiently XML regular path expressions. From the experimental results, we show that proposed XML query processing system is more efficient than previous systems.