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HLA/RTI 환경에서의 Proxy를 이용한 다중 페더레이션 연동
No full text학위논문(박사) - 한국과학기술원 : 전기및전자공학부, 2015.8
,[vi, 68 p. :]High Level Architecture (HLA)는 분산된 환경에서의 시뮬레이션 시스템들간의 연동과 재사용을 위하여 정의된 구조이다. HLA구조에서 시뮬레이션 시스템들은 HLA 서비스를 제공하는 RTI 미들웨어 상에 페더레이션을 만들고 참여하게 된다. 다양한 환경에서 개발된 시뮬레이션 시스템들은 페더레이션 내에서 연동되고 다른 시뮬레이션을 위하여 다른 페더레이션에 참여할 수 있어 재사용될 수 있다. 페더레이션 연동은 페더레이션들로 구성된 더 큰 시스템을 시뮬레이션 하기 위하여 필요하다. HLA 환경에서 이를 하기 위해서는 기존의 페더레이션들에 참여한 모든 시뮬레이션 시스템들로 구성된 페더레이션을 생성해야만 한다. 이렇게 할 경우, 기존에 다른 페더레이션에 속한 페더레이트들간의 정보 접근성와 관련된 보안 문제가 발생하게 된다. 한 페더레이션 내에서 RTI는 설정된 공유 데이터에 대한 접근을 제약하지 않기 때문에 다른 그룹에 속한(기존에 다른 페더레이션에서 속했던) 페더레이트가 자신의 그룹의 비밀 데이터에 접근하는 것을 막을 수 없다. 또한, 페더레이션들이 다른 RTI 환경에서 개발되었다면 한 페더레이션으로 합치는 것이 불가능할 수도 있다. 따라서, 페더레이션들을 그대로 유지한 채로 연동을 할 필요가 있다. Proxy 는 연동하고자 하는 페더레이션들에 각각 대리자를 참여시켜 다른 페더레이션들의 동작을 대행하도록 하는 방법이다. 다른 페더레이션 연동 방법과 달리 Proxy 방법은 RTI나 기 개발된 페더레이트의 확장 없이 적용할 수 있어 제한된 환경이 아닌 일반 HLA 환경에 적용할 수 있다는 장점이 있다. 세 개 이상의 페더레이션 연동을 위해서는 다수의 Proxy를 이용하여 계층형 페더레이션을 구성하게 된다. 본 연구에서는 Proxy 기반 페더레이션 연동 환경을 구축하는 것을 목표로 연동 구조와 데이터 모델, 서비스 관리 방법을 연구하였다. 연동 구조는 서비스 전달 지연 시간으로 인한 성능 손실을 최소로 하기 위하여 2레벨로 계층 구조를 제한한 계층형 페더레이션을 사용하였다. 제안된 구조에서 상위 계층은 페더레이션 연동 기능을 수행하고 하위 계층은 실 시뮬레이션이 수행된다. 또한 각 페더레이션들이 다른 페더레이션과 공유하고 싶지 않은 정보를 선택할 수 있도록 객체 모델을 정의하였다. Proxy의 객체 모델을 구성할 때, 다른 페더레이션에서 유효한 정보를 확인하여 해당 데이터의 교환을 가능하도록 하고 보안 데이터를 제외하도록 하여 정보 접근에 대한 보안을 강화하였다. 제안된 구조에서 페더레이션 연동이 정확하게 이루어지기 위해서는 모든 HLA서비스를 중개하도록 지원해야만 한다...한국과학기술원 :전기및전자공학
Retraction notice to “Multiple and simultaneous detection for cytokines based on the nanohole array by electrochemical sandwich immunoassay” [Biosens Bioelectron.: X 14 (2023) 100387]
No full textThis article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/locate/withdrawalpolicy).This article has been retracted at the request of author JuKyung Lee, with approval from Biosensors and Bioelectronics: X editor Dianping Tang.Concerns were raised following the publication of this paper about improper use of the data and discrepancies and misinterpretations of the data. The design presented in the papers were obtained at Northeasten University, the data have been published without permission.Authors Han Na Suh; Sung-Hoon Yoon; Yoo Min Park; HyungJin Kim; and SangHee Kim have been notified of the retraction.Based on the evidence, the above-mentioned authors and the editor concluded the article should be retracted
A descriptive study of the themes that emerge when expert employees known as myungjangs acquire, update, and share their domain-related occupational knowledge and skills
Get PDFWhile the literature provides useful insights into the nature of experts, much less attention has been paid to how individuals become experts in their jobs in the first place and what they do with their domain-specific information over time.
The purpose of the study was to describe the following areas: (1) what expert exployees do to acquire domain-related knowledge and skills related to their occupations; (2) what they do to update those domain-related occupational knowledge and skills; (3) the extent to which they have engaged in sharing domain-related occupational knowledge and skills with others to improve their and others’ domain-related occupational knowledge and skills.
The study focused on the experiences of 20 selected individuals who have been formally designated as experts in their occupations, known as DaehanmingukMyungjangs, by the president of the Republic of Korea. The data was gathered using a combination of in-depth open-ended interviews and the critical incident technique.
The study yielded a set of themes that advances an understanding of expert employees’ learning approaches. When acquiring domain-related occupational knowledge and skills, the study respondents seek a learning opportunity on the job and repeat given tasks on the job. When updating them, they create a learning opportunity within an extended boundary of work, review the process and the results of work, and master the task. When sharing them with others, they give or receive advice in a non-working situation and provide direct help on the job.
This study concludes with the model for becoming a Myungjang based on the findings from the data analysis and the implications for further research and practice.Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2019-11-26 without embargo termsThe student, Yoo Min Lee, accepted the attached license on 2019-07-08 at 13:48.The student, Yoo Min Lee, submitted this Dissertation for approval on 2019-07-08 at 13:59.This Dissertation was approved for publication on 2019-07-08 at 16:58.DSpace SAF Submission Ingestion Package generated from Vireo submission #14197 on 2019-11-26 at 12:51:33Made available in DSpace on 2019-11-26T20:33:55Z (GMT). No. of bitstreams: 3
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Previous issue date: 2019-07-0
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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