• Journal of Korean Neurosurgical Society
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• v.47 no.1
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• pp.68-70
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• 2010

We report a case of intracranial dissemination developing approximately 4 months after partial removal of a spinal cord anplastic astrocytoma in a 22-year-old male. He presented with paraplegia on initial admission at a local hospital. Spinal magnetic resonance (MR) images disclosed multiple intramedullary lesions at the T3-11. The tumor was partially removed. The final histologic diagnosis was anaplastic astrocytoma. Four months after the operation, he was admitted with the symptoms of headache and deterioration of consciousness. MR images showed enhanced lesions in the anterior horn of the left lateral ventricle, and septum pellucidum. He underwent computed tomography-guided stereotactic biopsy and histological appearance was consistent with anaplastic astrocytoma. The clinical course indicates that the tumor originated in the spinal cord and extended into the subarachnoid space, first the spinal canal and later intracranial.

• The Journal of Information Systems
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• v.8 no.1
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• pp.109-129
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• 1999

This study deals with the problem of information dissemination in a communication network, which is defined to be the process whereby a set of messages, generated by an originator, is transmitted to all the members within the network. Since this type of message generally includes control data to manage the network or global information that all members should know, it is to be required to transmit it to all the members as soon as possible. In this study, it is assumed that a member can either transmit or receive a message and an informed member can transmit it to only one of its neighbors at time. This type of transmission is called 'local broadcasting' Several schemes of call sequencing are designed for a general-type network with nonuniform edge transmission times, and then computer simulations are performed. Some heuristics for information dissemination are proposed and tested. For this, optimal call sequence in a tree-type network, sequencing theory and graph theory are applied. The result shows that call sequencing based on the shortest path tree is the most desirable.

• Land and Housing Review
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• v.8 no.3
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• pp.103-111
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• 2017

This study is aimed to identify the LHI policies in the research process that reflect the diversity of job positions and workplace using a statistical method such as IPA. To collect the sample data questionnaire survey was carried out in 400 staffs in LH including researchers to investigate dissemination of research results and improve factor regard with research. The dissemination of research results is positioned as a important key factor for the determination of research institute policy. From this reason, satisfaction survey was performed for defining the procedure of research system and the dissemination of research findings. The answers give stimulate participation for investigational activity and share some perceptions with research vision a dominant position. Futhermore, select the research theme which is a important association with pending issues at the planning phase is to reinforce the availability of research findings. Lastly, promote research findings intensively is cause availability of research results to increase also.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.172-174
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• 2004

선택적 정보 배포의 의미를 갖는 SDI(Selective Dissemination of Information)서비스는 이용자가 탐색전략을 입력하여 서비스를 신청하면 데이터베이스가 갱신될 때마다 또는 이용자가 지정한 간격으로 자동으로 질의되어 그 결과를 이용자에게 제공하는 서비스로 정의되는데, 이때 대용량의 데이터베이스로부터 복잡한 데이터 질의과정을 거친 데이터가 다수의 사용자들에게 보다 빠르게 전달할 수 있도록 하는 것이 SDI 서비스의 주요한 요구사항이 되고 논다. 본 연구는 다수의 대용량 서비스 데이터베이스를 대상으로 이용자의 요구 주제에 해당하는 정보를 빠르게 서비스하기 위하여 검색시간을 단축할 수 있는 방안으로 'SDI 서비스 전용 데이터베이스'와 '검색결과저장 데이터베이스'를 별도로 두는 시스템을 제시한다. 이를 통해 동일한 질의에 대한 데이터베이스 검색이 최소화되고 검색대상 정보의 범위가 축소되며, 아울러 서비스 대상 데이터베이스의 확장도 용이해진다.

• Proceedings of the Korea Society for Simulation Conference
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• 2003.11a
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• pp.95-103
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• 2003

Event notification service is a event-based messaging middle ware service needed for various vertical domains, such as, business applications, distributed system management, and web service integration. In this paper, we investigate the architecture of an event notification service that includes a subject-based event dissemination service and a flexible message communication service. The event dissemination service is in charge of transferring events asynchronously but speedy according to the subjects of events and their environmental knowledge. It also includes content-based message filtering. The message communication service provides a common communication infrastructure supporting variety types of messages and variety of protocols. Depending on application domains and situation, we can re-configurate the communication infrastructure in order to optimize the efficiency and usability. This paper shows the performance analysis of our event notification service with various types of message formats and protocols.

• Industrial Engineering and Management Systems
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• v.6 no.1
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• pp.49-54
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• 2007

This study deals with technology planning-based management for Basic R&D Programs of government supported research institutes (GRIs). The Korean Research Council for Industrial Science and Technology which consists of major GRIs needs to implement new government policies which focus on the dissemination of R&D outcome, collaborative research, and performance-oriented R&D investment. The major characteristics of technology planning-based management include the hierarchy of market-oriented technology plans and the valuation of core technologies. We also suggest technology classifications and project network diagrams.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.23 no.3
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• pp.12-15
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• 1978

The agriculture in Korea has been gradually changed from a labor-intensive type to a labor-saving one which aims to maximize productivity of labor. Herbicides have been utilized in rice farming since 1955. The consumption of herbicides rapidly increased during the last decade. However, the technology of weed control with herbicides has not been developed yet. For the dissemination of efficient weed control methods in farming, both research and extension activities on herbicide utilization should be strengthened. Appropriate research and guidance units on weed control should be established as early as possible, in order to provide the necessary technical information.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10c
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• pp.460-462
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• 1999

휴대형 컴퓨터와 무선통신기술의 급속한 발달은 사용자에게 언제, 어디서나 필요한 컴퓨팅을 수행할 수 있는 이동 컴퓨팅이라는 새로운 패러다임을 발생케 하였다. 이동 컴퓨팅 환경은 대역폭(bandwidth)과 저 수준의 전송품질을 가지고 있기 때문에 서버가 어떠한 방법으로 데이터 dissemination을 이용하는 새로운 시스템 구조들이 제안되었다. 본 논문에서는 데이터 dissemination의 한 기법인 브로트캐스트 기법에서의 데이터 일관성 유지 문제와 이동 클라이언트의 효율적 전력 사용 문제를 동시에 고려한 브로트캐스트 기법을 제안하였다.

• Clinical Endoscopy
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• v.55 no.2
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• pp.191-196
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• 2022

Unlike simple forward-viewing endoscopes such as gastroscope or colonoscope, duodenoscope houses much more complex design to fulfil its function. This design differences leave duodenoscopes more prone to contamination from inadequate disinfection process and potential dissemination of pathogens. Recent reports on dissemination of infection through the duodenoscope mandated an overhaul of duodenoscope utilization including development of a disposable duodenoscope. This article reviews the current state of disposable duodenoscope development, including reported early efficacy as well as its future direction and utilization.

• 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.