• Title/Summary/Keyword: Source key

Search Result 1,106, Processing Time 0.03 seconds

A Study on Trend of Technology Development for Unmanned Combat Ground Vehicle (무인전투차량 기술개발 동향조사 및 분석)

  • Park, Seung
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.10 no.7
    • /
    • pp.1735-1739
    • /
    • 2009
  • The keen global competition is expected among foreign advanced nations for source, key technologies required by unmanned combat ground vehicle. Therefore, the trend of technologies for unmanned ground combat vehicle was analyzed in this research. It was based on the submitted patents from 1988 to 2008 in Korea, U.S.A, Japan, Europe, Canada and Israel. This analysis was focused on finding the technical level, the challenge area and breakthrough technologies and the growth of technologies of each nations considering opinions of experts. This report suggested the field of key technology development

Low-value Fish used as Feed is a Source of Disease in Farmed Fish

  • Kim, Do-Hyung
    • Fisheries and Aquatic Sciences
    • /
    • v.18 no.2
    • /
    • pp.203-209
    • /
    • 2015
  • Low-value fish is the most commonly used feed in Asian fish farms despite the fact that its application is controversial in regard to the sustainability and biosecurity of aquaculture. In this study, the causal agent of a disease outbreak at a Korean rockfish Sebastes schlegeli farm was investigated to determine whether the low-value fish used at the farm was the source. Infected Korean rockfish and Pacific sand eel used as feed were sampled from the farm, and bacterial cultures recovered from the internal organs of all sampled rockfish were isolated as pure cultures and later identified as Vibrio harveyi. The causal agent of the disease was also isolated from the kidneys of some of the sampled Pacific sand eels. This study provides additional evidence that the low-value fish used as feed at fish farms can be a key source of infectious diseases.

The Effects of Confirmation in Collective Intelligence Quality on Continuance Intention through Trust (지식검색 서비스에서 집단지성 품질이 지속사용 의도에 미치는 영향: 기대일치이론과 신뢰를 중심으로)

  • Kim, Jin-Wan;Hong, Tae-Ho
    • The Journal of Information Systems
    • /
    • v.20 no.4
    • /
    • pp.1-22
    • /
    • 2011
  • This study addressed trust to collective intelligence for explaining the affecting factors to the intention to use of collective intelligence by dividing the object of trust into a Web site and an information source group. We explored the factors affecting user's continuance intention toward collective intelligence in the view off trust building. We made a well-structured survey of our proposed model and gained 205 cases. We analyzed the proposed research model empirically using partial least square method. The findings are summarized as follows. First, all key factors (relevance, timeless, completeness, understandability) composing of collective intelligence quality have a positive and significant impact on confirmation. Second, confirmation has a significant impact on trust toward a Web site, as well as toward an information source group. The last is that trust toward a Web site influences on continuance intention, whereas trust toward an information source group doesn't.

Electrical Properties of Plasma According to Gas Pressure and RF Power of Xe-Inductively Coupled Plasma (유도결합형 제논의 가스압력 및 RF전력에 따른 플라즈마의 전기적 특성)

  • Choi, Yong-Sung;Lee, Kyung-Sup
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2006.12a
    • /
    • pp.43-47
    • /
    • 2006
  • In this paper, parameters of electron temperature and density for the mercury-free lighting-source were measured to diagnosis and analyze in Xe based inductively coupled plasma (ICP). As results at several dependences of 20~100mTorr Xenon pressure, the brightness of discharge tube was higher (4,900 $cd/m^2$) than other conditions when Xe pressure was 20mTorr and RF power was 200W. In that case, the electron temperature and density were 3.58eV and $3.56{\times}10^{12}cm^2$, respectively. The key parameters of Xe based ICP depended on Xe pressure more than RF power that could be verified. A high electron temperature and low electron density with a suitable Xe pressure are indispensible parameters for Xe based ICP lighting-source.

  • PDF

Current Evidence on the Association between rs3757318 of C6orf97 and Breast Cancer Risk: a Meta-Analysis

  • Hong, Yuan;Chen, Xue-Qin;Li, Jiao-Yuan;Liu, Cheng;Shen, Na;Zhu, Bei-Bei;Gong, Jing;Chen, Wei
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.15 no.19
    • /
    • pp.8051-8055
    • /
    • 2014
  • Background: A common genetic variant rs3757318, located in intron of C6orf97, was firstly identified to be associated with breast cancer (BC) risk by a genome-wide association (GWA) study. However, subsequent validation studies with different ethnicities have yielded conflicting results. Materials and Methods: We performed a meta-analysis to synthesize all available data for evaluating the precise effect of this variant on BC susceptibility. Results: A total of 8 articles containing 11 studies with 62,891 cases and 65,635 controls were included in this meta-analysis. When compared to the G allele, the rs3757318-A allele was significantly associated with BC risk with the pooled OR of 1.21 (95% CI=1.15 - 1.29, P<0.001) but with obvious between-study heterogeneity (P=0.040). Stratified analysis suggested that diversity of ethnicity along with control source may explain part of the heterogeneity. Similarly, significant associations were also identified in heterozygote, homozygote, dominant and recessive genetic models. Sensitivity and publication bias analyses indicated robust stability of our results. Conclusions: Our present meta-analysis demonstrated that the variant rs3757318 is associated with increased BC risk. Nevertheless, further studies are needed to clarify the underlying biological mechanisms.

A Study on the Cartoon Style in Image Contents (영상 콘텐츠에 나타나는 만화적 표현에 관한 연구)

  • Lee, Young-Sook;Lee, Heon-Woo
    • Cartoon and Animation Studies
    • /
    • s.24
    • /
    • pp.65-82
    • /
    • 2011
  • Since the arrival of the internet, numerous creative content industries have been active online. In particular, additional training has been necessary due to higher interest in e-Book publishing, and the opening and expansion of the online comics industry. However, as for the study of film grammar, there is a lack of research on lively and diverse expression in cartoon directing. In this study, animation and painting techniques, with examples of cartoons being expressed cartoon is intended to provide the possibility of directing. In addition, the comics industry one source multi user to the related industries is a key element with the value-added industries. So in other media expressed a wide range of research on the techniques of comic culture shall serve as key elements of the content looks.

Privacy Preserving Source Based Deduplicaton Method (프라이버시 보존형 소스기반 중복제거 방법)

  • Nam, Seung-Soo;Seo, Chang-Ho
    • Journal of Digital Convergence
    • /
    • v.14 no.2
    • /
    • pp.175-181
    • /
    • 2016
  • Cloud storage servers do not detect duplication of conventionally encrypted data. To solve this problem, convergent encryption has been proposed. Recently, various client-side deduplication technology has been proposed. However, this propositions still cannot solve the security problem. In this paper, we suggest a secure source-based deduplication technology, which encrypt data to ensure the confidentiality of sensitive data and apply proofs of ownership protocol to control access to the data, from curious cloud server and malicious user.

Graphene for MOS Devices

  • Jo, Byeong-Jin
    • Proceedings of the Materials Research Society of Korea Conference
    • /
    • 2012.05a
    • /
    • pp.67.1-67.1
    • /
    • 2012
  • Graphene has attracted much attention for future nanoelectronics due to its superior electrical properties. Owing to its extremely high carrier mobility and controllable carrier density, graphene is a promising material for practical applications, particularly as a channel layer of high-speed FET. Furthermore, the planar form of graphene is compatible with the conventional top-down CMOS fabrication processes and large-scale synthesis by chemical vapor deposition (CVD) process is also feasible. Despite these promising characteristics of graphene, much work must still be done in order to successfully develop graphene FET. One of the key issues is the process technique for gate dielectric formation because the channel mobility of graphene FET is drastically affected by the gate dielectric interface quality. Formation of high quality gate dielectric on graphene is still a challenging. Dirac voltage, the charge neutral point of the device, also strongly depends on gate dielectrics. Another performance killer in graphene FET is source/drain contact resistance, as the contact resistant between metal and graphene S/D is usually one order of magnitude higher than that between metal and silicon S/D. In this presentation, the key issues on graphene-based FET, including organic-inorganic hybrid gate dielectric formation, controlling of Dirac voltage, reduction of source/drain contact resistance, device structure optimization, graphene gate electrode for improvement of gate dielectric reliability, and CVD graphene transfer process issues are addressed.

  • PDF

A Study on Automotive LED Business Strategy Based on IP-R&D : Focused on Flip-Chip CSP (Chip-Scale Packaging) (IP-R&D를 통한 자동차분야 LED사업전략에 관한 연구 : Flip-Chip을 채용한 CSP (Chip-Scale Packaging) 기술을 중심으로)

  • Ryu, Chang Han;Choi, Yong Kyu;Suh, Min Suk
    • Journal of the Semiconductor & Display Technology
    • /
    • v.14 no.3
    • /
    • pp.13-22
    • /
    • 2015
  • LED (Light Emitting Diode) lighting is gaining more and more market penetration as one of the global warming countermeasures. LED is the next generation of fusion source composed of epi/chip/packaging of semiconductor process technology and optical/information/communication technology. LED has been applied to the existing industry areas, for example, automobiles, TVs, smartphones, laptops, refrigerators and street lamps. Therefore, LED makers have been striving to achieve the leading position in the global competition through development of core source technologies even before the promotion and adoption of LED technology as the next generation growth engine with eco-friendly characteristics. However, there has been a point of view on the cost compared to conventional lighting as a large obstacle to market penetration of LED. Therefore, companies are developing a Chip-Scale Packaging (CSP) LED technology to improve performance and reduce manufacturing costs. In this study, we perform patent analysis associated with Flip-Chip CSP LED and flow chart for promising technology forecasting. Based on our analysis, we select key patents and key patent players to derive the business strategy for the business success of Flip-Chip CSP PKG LED products.