• Title/Summary/Keyword: data dissemination

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A study on the Economic Impact of Measurement Standards on the Advancement of Korean Industry - with case study on measuring equipment industry - (측정표준의 국내 산업성장에 대한 기여도 분석 - 측정기기산업의 분석을 중심으로 -)

  • Ahn, Ung-Hwan;Park, Byoung-Sun;Cho, Youn-Sang
    • Journal of Korea Technology Innovation Society
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    • v.10 no.2
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    • pp.361-382
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    • 2007
  • As the Korea's economy grows bigger and its industrial structure advances, demands of high quality product become increasing. And the technology becomes to be more important factor than labor power and capital. And, the development of technology plays the key role in promoting the competitiveness of a nation. Measurement means 'Measuring with instrument', dissemination of measurement standards related with dissemination and distribution of measuring instrument. Measurement technology has been known to be the main factor of economic growth and technological development. National measurement standards is one of these factors of measurement technology. Therefore, in order to enhance dissemination of measurement standards to industry, we have to define its economic impact. We analysed the economic impact of measurement standards in terms of its contribution to the product induction of industry and management results using I-O Table with the quantitative data. The results from this study show that the increasement of measurement standards dissemination is in complementary relation with the productivity of various industries, assembly manufacturing, in particularly.

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Optimizing Innovative Tools for Dissemination of Information in Nigerian Academic Libraries During Post-COVID Era

  • Halimah Odunayo AMUDA;Ayotola Olubunmi ONANUGA
    • International Journal of Knowledge Content Development & Technology
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    • v.14 no.1
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    • pp.19-31
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    • 2024
  • In order to support the mission of the institution in which they are attached, academic libraries provide services in both manual and digital but COVID -19 pandemic that spanned between March and September, 2020 has changed the scenario. With particular reference to Nigeria, about 249,606 cases were confirmed and in order to curb the scourge of this deadly disease, physical academic activities were prevented by Nigeria Centre for Disease Control (NCDC). With this development, innovative tools became indispensable tools for successful delivery of library services in Nigerian academic libraries. Whether or not these tools are still in use for reformation of library service during post- Covid era remains unclear, hence, need for this study. This study examined librarians' use of innovative tools for information dissemination in Nigerian academic libraries during the post-Covid era using a descriptive survey design. Data were obtained both in quantitative and qualitative formats from one hundred and forty-four librarians as respondents. A total enumeration sampling technique was adopted because the population was minimal. Findings of the study revealed that innovative tools such as videoconferencing, WhatsApp, teleconferencing, Facebook, LinkedIn, and web-based learning applications are still in use by librarians for the dissemination of information during the post-Covid era. These tools are useful and beneficial to librarians during the post-COVID era, as they facilitate easy participation and engagement of library users in various discussions. Inadequate funding and lack of advanced technology skills were also identified as major impediments to the successful use of innovative tools for information dissemination. As a result, it was suggested that academic libraries throughout Nigeria prioritize staff training on the necessary digital skills needed to cope in this advanced technology era.

Data Dissemination in Wireless Sensor Networks with Instantly Decodable Network Coding

  • Gou, Liang;Zhang, Gengxin;Bian, Dongming;Zhang, Wei;Xie, Zhidong
    • Journal of Communications and Networks
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    • v.18 no.5
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    • pp.846-856
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    • 2016
  • Wireless sensor networks (WSNs) are widely applied in monitoring and control of environment parameters. It is sometimes necessary to disseminate data through wireless links after they are deployed in order to adjust configuration parameters of sensors or distribute management commands and queries to sensors. Several approaches have been proposed recently for data dissemination in WSNs. However, none of these approaches achieves both high efficiency and low complexity simultaneously. To address this problem, cluster-tree based network architecture, which divides a WSN into hierarchies and clusters is proposed. Upon this architecture, data is delivered from base station to all sensors in clusters hierarchy by hierarchy. In each cluster, father broadcasts data to all his children with instantly decodable network coding (IDNC), and a novel scheme targeting to maximize total transmission gain (MTTG) is proposed. This scheme employs a new packet scheduling algorithm to select IDNC packets, which uses weight status feedback matrix (WSFM) directly. Analysis and simulation results indicate that the transmission efficiency approximate to the best existing approach maximum weight clique, but with much lower computational overhead. Hence, the energy efficiency achieves both in data transmission and processing.

WSN Data Dissemination Protocol by N-hop Access Guarantee Backbone (N홉 접근보장의 백본을 이용한 무선 센서 네트워크 데이터 전송 프로토콜)

  • Kim, Moon-Seong;Cho, Sang-Hun;Choo, Hyun-Seung
    • Journal of Internet Computing and Services
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    • v.10 no.1
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    • pp.43-50
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    • 2009
  • Flooding and SPIN, which are well-known WSN(Wireless Sensor Network) proactive protocols, spontaneously disseminate the sensed data without a request from an arbitrary sink node. However, these methods disseminate the data even to some nodes that do not need it, which is energy inefficient. In this paper, we introduce a semi-proactive protocol to disseminate only to pertinent nodes instead of all nodes in order to overcome this weakness. Thus some nodes, such as arbitrary sink nodes that need the sensed data, could easily obtain the data within some hops. The simulation result shows that the proposed protocol has higher average node energy efficiency than that of well-known earlier work, SPIN. If a proactive protocol, such as SPIN, is changed to semi-proactive and has only a 1-hop burden, then the energy efficiency enhancement is up to about 83% compared with SPIN.

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Contents Personalization

  • 김광용
    • Proceedings of the Korea Database Society Conference
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    • 2001.11a
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    • pp.76-112
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    • 2001
  • Web personalization entails the creation and dissemination of person- or group-specific content -- including, but not limited to, advertising, marketing campaigns, cross- and up-sell recommendations, or service and support information. (omitted)

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An Investigation of Current Status of the Clinical Practice Guidelines in Korea (국내 임상진료지침의 개발 현황)

  • Chun, Pusoon;Lee, Young Sook
    • Korean Journal of Clinical Pharmacy
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    • v.25 no.3
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    • pp.178-186
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    • 2015
  • Objective: Clinical practice guidelines (CPGs) are systematically developed statements aimed at helping optimal care of the patient in a given clinical circumstance. Because of the increasing evidence that active implementation of CPGs improve health outcomes, there is a growing awareness of the importance of guideline development and dissemination. The objective of this study was to investigate the status of CPG development and availability of the CPGs in Korea. Method: We searched in the Web sites of 180 organizations to identify CPGs which were developed and/or published in Korea until 1 July 2014. The data of titles, published year, publisher, distributer, and accessibility at the internet web of all CPGs were collected and analyzed. Results: A total of 172 CPGs were developed and 80% had been released since 2009. Most (51.2%) were developed for management of 4 diseases: 28 for digestive system disease; 27 for infectious disease; 18 for endocrine and metabolic diseases; and 15 for neoplasms. Of the 172 CPGs, 150 CPGs were publicly available. Among the 150 CPGs, 78.7% (118/150) were developed by only one organization. Conclusion: To ensure the production of high-quality CPGs, it is necessary to collaborate with other relevant professional societies in guideline development process. In addition, stronger efforts on wider dissemination of CPGs must be employed at the country levels to promote implementation of CPGs in clinical settings.

Segmentation of Chinese Fashion Product Consumers according to Internet Shopping Values and Their Online Word-of-Mouth and Purchase Behavior (인터넷 쇼핑가치에 따른 중국 패션제품 소비자 세분집단의 온라인 구전 및 구매행동)

  • Yin, Mei;Yu, Haekyung;Hwang, Seona
    • Fashion & Textile Research Journal
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    • v.18 no.3
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    • pp.317-326
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    • 2016
  • The main purposes of this study were to segment Chinese consumers who purchase fashion products through internet commerce according to internet shopping values, to compare their online word-of-mouth acceptance and dissemination behavior, and to examine the demographic characteristics and purchase behavior of the segments. 715 questionnaires were collected through internet survey from January $19^{th}$ to March $16^{th}$, 2015 and a total of 488 were used for the final data analysis. The respondents were twenty to thirty nine years old men and women living in all over China. Hedonic and utilitarian shopping values were identified through factor analysis and based on the shopping values, the respondents were categorized into four groups-ambivalent shopping value group, hedonic shopping value group, utilitarian shopping value group and indifferent group. Among these groups, there were significant differences in terms of online word-of-mouth acceptance as well as dissemination level and motivation. In overall, ambivalent shopping value group showed high online word-of-mouth acceptance as well as dissemination motivation. The groups also showed significant differences in clothing selection criteria, frequently purchased internet shopping sites, online clothing shopping frequency and information sources. The groups also differed in terms of age, residential area, education level, occupation and income. However, there were no significant differences in gender and marital status among the groups.

An Adaptable Destination-Based Dissemination Algorithm Using a Publish/Subscribe Model in Vehicular Networks

  • Morales, Mildred Madai Caballeros;Haw, Rim;Cho, Eung-Jun;Hong, Choong-Seon;Lee, Sung-Won
    • Journal of Computing Science and Engineering
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    • v.6 no.3
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    • pp.227-242
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    • 2012
  • Vehicular Ad Hoc Networks (VANETs) are highly dynamic and unstable due to the heterogeneous nature of the communications, intermittent links, high mobility and constant changes in network topology. Currently, some of the most important challenges of VANETs are the scalability problem, congestion, unnecessary duplication of data, low delivery rate, communication delay and temporary fragmentation. Many recent studies have focused on a hybrid mechanism to disseminate information implementing the store and forward technique in sparse vehicular networks, as well as clustering techniques to avoid the scalability problem in dense vehicular networks. However, the selection of intermediate nodes in the store and forward technique, the stability of the clusters and the unnecessary duplication of data remain as central challenges. Therefore, we propose an adaptable destination-based dissemination algorithm (DBDA) using the publish/subscribe model. DBDA considers the destination of the vehicles as an important parameter to form the clusters and select the intermediate nodes, contrary to other proposed solutions. Additionally, DBDA implements a publish/subscribe model. This model provides a context-aware service to select the intermediate nodes according to the importance of the message, destination, current location and speed of the vehicles; as a result, it avoids delay, congestion, unnecessary duplications and low delivery rate.

Low-Resolution Wind Mapping For Estimation of Wind Resource Potential (풍력자원 잠재량 산출을 위한 저해상도 바람지도 구축)

  • Kim, Hyun-Goo;Jang, Moon-Seok;Kyong, Nam-Ho
    • 한국신재생에너지학회:학술대회논문집
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    • 2006.11a
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    • pp.307-308
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    • 2006
  • The national goal of wind energy dissemination has to be determined rationally based on technically available wind resource potential. For a reliable and scientific estimation or wind resource potential, a wind map is requisite. This paper presents the national wind map of Korea established by numerical wind simulation. Prediction accuracy of the low-resolution wind map is Improved by nudging QuikSCAT data and is validated by comparing with marine buoy beacon and met-mast measurements. Therefore, quantification of national wind resource potential is now possible and is anticipating to be utilized as a core index for policy and strategy building of wind energy dissemination and technology development.

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