• 제목/요약/키워드: Collaboration system

검색결과 1,284건 처리시간 0.029초

원격지정을 위한 RTP 페이로드 형식 (The RTP Payload Format for Telepointing)

  • 전재우;백희숙;오삼권;임기욱
    • 정보처리학회논문지A
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    • 제9A권1호
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    • pp.29-36
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    • 2002
  • CSCW 시스템은 효율적인 공동작업의 인지를 위해 원격지정(telepoinging), 스냅샷(snap shot), 문서/프로젝트의 작업상황파악 등과 같은 기능들을 제공한다. 이 중 원격지정은 지역 시스템의 공유윈도우에서 원격지정자(telepointer)를 통해 발생한 이벤트를 원격지 시스템의 공유윈도우에 동기적으로 표현하는 기법이다. 이 기법에 대한 응용사례는 여러 문헌에서 찾아볼 수 있으나 이에 대한 기능 요구사항이나 프로토콜에 관한 연구는 미흡한 실정이다. 본 논문은 RTP(Real-Time Transport Protocol) 기반의 원격지정을 위한 기능요구사항과 페이로드 형식을 정의한다. 제안된 RTP 기반 텔리포인팅의 성능평가를 위해 화이트 보드를 구현하고 이를 Microsoft Netmeeting의 화이트 보드와 비교하였다. 성능평가 결과, CPU 사용량과 네트워크 사용량에서 제안된 원격지정방식이 더 높은 성능을 보였다.

원자력지식경영과 IAEA/INIS 활동 (Nuclear Knowledge Management and the Activities of IAEA/INIS)

  • 이지호
    • 정보관리연구
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    • 제37권4호
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    • pp.105-124
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    • 2006
  • 원자력지식경영은 한국원자력연구소에서 실제로 운영되고 있으며, IAEA에서도 INIS사무국의 적극적인 주도하에 회원국을 중심으로 활발하게 수행되고 있다. 지식경영은 사서의 업무영역으로, 전통적인 도서관 업무영역의 축소에 따른 블루오션 성격의 유망 대체업무라 볼 수 있다. 따라서 이에 대한 이해와 관심이 절실히 필요하다. INIS는 원자력을 평화적으로 사용하기 위한 국가 간의 협력에 의해 IAEA가 중심이 되어 설립된 국제적인 정보유통시스템이다. INIS는 270만 건이 넘는 원자력 관련 분야의 DB를 구축하여 이용자에게 제공한다. 국내의 INIS 활동은 INIS 입력량(세계 5위) 및 INIS2 호스트사이트 운영 등으로 IAEA에서 선도적인 역할을 담당하고 있다.

실행시간 적응에 의한 병렬처리시스템의 성능개선 (Performance Improvement of Parallel Processing System through Runtime Adaptation)

  • 박대연;한재선
    • 한국정보과학회논문지:시스템및이론
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    • 제26권7호
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    • pp.752-765
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    • 1999
  • 대부분 병렬처리 시스템에서 성능 파라미터는 복잡하고 프로그램의 수행 시 예견할 수 없게 변하기 때문에 컴파일러가 프로그램 수행에 대한 최적의 성능 파라미터들을 컴파일 시에 결정하기가 힘들다. 본 논문은 병렬 처리 시스템의 프로그램 수행 시, 변화하는 시스템 성능 상태에 따라 전체 성능이 최적화로 적응하는 적응 수행 방식을 제안한다. 본 논문에서는 이 적응 수행 방식 중에 적응 프로그램 수행을 위한 이론적인 방법론 및 구현 방법에 대해 제안하고 적응 제어 수행을 위해 프로그램의 데이타 공유 단위에 대한 적응방식(적응 입도 방식)을 사용한다. 적응 프로그램 수행 방식은 프로그램 수행 시 하드웨어와 컴파일러의 도움으로 프로그램 자신이 최적의 성능을 얻을 수 있도록 적응하는 방식이다. 적응 제어 수행을 위해 수행 시에 병렬 분산 공유 메모리 시스템에서 프로세서 간 공유될 수 있은 데이타의 공유 상태에 따라 공유 데이타의 크기를 변화시키는 적응 입도 방식을 적용했다. 적응 입도 방식은 기존의 공유 메모리 시스템의 공유 데이타 단위의 통신 방식에 대단위 데이타의 전송 방식을 사용자의 입장에 투명하게 통합한 방식이다. 시뮬레이션 결과에 의하면 적응 입도 방식에 의해서 하드웨어 분산 공유 메모리 시스템보다 43%까지 성능이 개선되었다. Abstract On parallel machines, in which performance parameters change dynamically in complex and unpredictable ways, it is difficult for compilers to predict the optimal values of the parameters at compile time. Furthermore, these optimal values may change as the program executes. This paper addresses this problem by proposing adaptive execution that makes the program or control execution adapt in response to changes in machine conditions. Adaptive program execution makes it possible for programs to adapt themselves through the collaboration of the hardware and the compiler. For adaptive control execution, we applied the adaptive scheme to the granularity of sharing adaptive granularity. Adaptive granularity is a communication scheme that effectively and transparently integrates bulk transfer into the shared memory paradigm, with a varying granularity depending on the sharing behavior. Simulation results show that adaptive granularity improves performance up to 43% over the hardware implementation of distributed shared memory systems.

산학 연계 프로젝트 기반 학습(PBL)을 활용한 AI 패션 큐레이션 실습 교과목 운영 사례 연구 (A Case Study on an Artificial Intelligence Fashion Curation Practice Subject through Industrial-academic Project-based Learning)

  • 안효선;박민정
    • 한국의류산업학회지
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    • 제23권3호
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    • pp.337-346
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    • 2021
  • In the fourth industrial revolution, fashion students are expected to work with various technologies to show creativity. This study aimed to conduct project-based learning(PBL) in collaboration with industry experts to design and operate artificial intelligence(AI) in the practice subject of fashion curation through the industrial academic teaching method. We first looked at teaching methods and strategies incorporating PBL in various academic fields. Next, we analyzed fashion projects and fashion curation services applying AI. Then through the question-and-answer method and by consulting with industry experts, we developed a curriculum for AI fashion curation, applying PBL(fashion market and trend analysis; new styles and time, place, and occasion planning; AI machine learning data set production; curation model development; and evaluation) suitable for the university's educational environment, information technology company conditions, and fashion students. As part of a close cooperation system with the industry, we conducted a 15-week Fashion Project II (Capstone Design) course and evaluated the outcomes and student satisfaction with the course. Students were able to develop new style, and time, place, and occasion categories and to utilize strategies for AI fashion curation services reflecting the unique needs of Millennials and Generation Z. Students showed high satisfaction with the curriculum. Further, it was confirmed that the study successfully applied PBL in class using AI technology in fashion education.

중국의 아키비스트 양성제도 - 중국인민대학(中國人民大學) 당안학원(檔案學院)을 중심으로 - (The Education and Training of Archivists in China)

  • 이승휘
    • 기록학연구
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    • 제1호
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    • pp.189-217
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    • 2000
  • In this article I tried to take an overview of the training course of Chinese Archivists. The emphasis of this work lies on the development of the Archives College of Renmin. Univ. of China after the Cultural Revolution. It includes also the development in 1950's and early '60's. An overview of the Chinese development in 1950's and early '60's will be helpful for the development of Korean archival system, especially in training of archivists. What is necessary above all in our today's situation is to bring some experiences from the advanced countries in this field. It can be carried out in two ways : the empirical studies of archival development in foreign countries and the systematic translation of their publications. It also needs an establishment of professional institutes for the archival studies in Korea. In fact the professional archivists are now hardly found in Korea. Those scholars working in the archival areas now are not archival specialists in their academic origin. Because of the urgent needs some scholars of related fields, i.e. history and library science, take over the roles of researchers and instructors in archival studies. It is therefore very urgent to offer the environment where the archivists are able to devote themselves to research in archival science. In conclusion, we need to pursue the studies of archives to give order to the records we find in the long history of our archival tradition. By doing so, we can develop our own archival science in the end. This project, however, needs supports from the government for the formation of policies, securement of budget and collaboration between the related agencies to pave a way for the strong foundation of Korean archival studies. Without these supports it might take much more time then that Chinese have taken for the enhancement of their own archival studies.

Numerical evaluation of gamma radiation monitoring

  • Rezaei, Mohsen;Ashoor, Mansour;Sarkhosh, Leila
    • Nuclear Engineering and Technology
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    • 제51권3호
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    • pp.807-817
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    • 2019
  • Airborne Gamma Ray Spectrometry (AGRS) with its important applications such as gathering radiation information of ground surface, geochemistry measuring of the abundance of Potassium, Thorium and Uranium in outer earth layer, environmental and nuclear site surveillance has a key role in the field of nuclear science and human life. The Broyden-Fletcher-Goldfarb-Shanno (BFGS), with its advanced numerical unconstrained nonlinear optimization in collaboration with Artificial Neural Networks (ANNs) provides a noteworthy opportunity for modern AGRS. In this study a new AGRS system empowered by ANN-BFGS has been proposed and evaluated on available empirical AGRS data. To that effect different architectures of adaptive ANN-BFGS were implemented for a sort of published experimental AGRS outputs. The selected approach among of various training methods, with its low iteration cost and nondiagonal scaling allocation is a new powerful algorithm for AGRS data due to its inherent stochastic properties. Experiments were performed by different architectures and trainings, the selected scheme achieved the smallest number of epochs, the minimum Mean Square Error (MSE) and the maximum performance in compare with different types of optimization strategies and algorithms. The proposed method is capable to be implemented on a cost effective and minimum electronic equipment to present its real-time process, which will let it to be used on board a light Unmanned Aerial Vehicle (UAV). The advanced adaptation properties and models of neural network, the training of stochastic process and its implementation on DSP outstands an affordable, reliable and low cost AGRS design. The main outcome of the study shows this method increases the quality of curvature information of AGRS data while cost of the algorithm is reduced in each iteration so the proposed ANN-BFGS is a trustworthy appropriate model for Gamma-ray data reconstruction and analysis based on advanced novel artificial intelligence systems.

조직 사회화를 위한 팝 아트 협동학습 입문교육 사례연구 - 가톨릭대학교 은평성모병원 개원 전 입문교육 중심으로 - (A Case Study on the Introduction of Pop Art Collaboration Learning for Organization Socialization - Focusing on Introductory Education before Opening of Catholic University's Eunpyeong St. Mary's Hospital -)

  • 박병태
    • 한국병원경영학회지
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    • 제24권2호
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    • pp.84-101
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    • 2019
  • Purposes: Organizational socialization introductory education for new members is a representative organizational socialization program that enables new members to become true members of an organization and grow into the people they expect from the organization. I analyzed the case of Pop Art Cooperative Learning introductory education for the socialization of the entire organization, which was conducted by Eunpyeong St. Mary's Hospital of Catholic University, in 13 steps, one month before its opening on April 1, 2019. Methodology: In order to analyze the case, the case study was analyzed in order from education planning to preparation, implementation and evaluation. The important point in this process is that all the members to be input at the start of the treatment are not included in the position and occupation. In the composition of education contents, the core keywords for achieving the vision are derived through each group activity and strategies for achieving spirituality, vision, and vision of Hospital are made and the ideal image of Eunpyeong St. Mary's Hospital is completed using the pop art technique. All the works produced by each group will be shared by all attendees of the relevant education level and the whole picture of each education order will be completed again with the big picture called - The heart of Jesus Christ the healer♥ - Respectively. Findings: Education Results All the participants showed high satisfaction and they shared the vision and mission of Eunpyeong St. Mary 's Hospital as well as the formation of intimacy and belonging to each other. They recognized the future direction and goal. And contribute to tissue stabilization. Practical Implications: Through this case study, it will be possible to contribute to establishment and implementation of introductory education plan for new members' socialization to new hospitals.

Measurement of outgassing rates of Kevlar and S-Glass materials used in torque tubes of High Tc Superconducting (HTS) Motors

  • Thadela, S.;Muralidhar, BVAS;Kalyani, B;Choudhury, UK;Yadav, SN;Rao, V.V.
    • 한국초전도ㆍ저온공학회논문지
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    • 제20권4호
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    • pp.11-15
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    • 2018
  • Torque tubes in High Temperature Superconducting (HTS) motor transfer torque from superconducting field winding rotor to the room temperature shaft. It should have minimum heat conduction property for minimizing the load on cryo-refrigerator. Generally, these torque tubes are made with stainless steel material because of high strength, very low outgassing and low thermal contraction properties at cryogenic temperatures and vacuum conditions. With recent developments in composite materials, these torque tubes could be made of composites such as Kevlar and S-Glass, which have the required properties like high strength and low thermal conductivity at cryogenic temperatures, but with a reduced weight. Development and testing of torque tubes made of these composites for HTS motor are taken up at Bharat Heavy Electricals Limited (BHEL), Hyderabad in collaboration with Central Institute of Plastics and Engineering Technology (CIPET), Chennai and Indian Institute of Technology (IIT), Kharagpur. As these materials are subjected to vacuum, it is important to measure their outgassing rates under vacuum conditions before manufacturing prototype torque tubes. The present study focusses on the outgassing characteristics of Kevlar and S-Glass, using an Outgassing Measurement System (OMS), developed at IIT Kharagpur. The OMS facility works under vacuum environment, in which the test samples are exposed to vacuum conditions over a sufficient period of time. The outgassing measurements for the composite samples were obtained using pressure-rise technique. These studies are useful to quantify the outgassing rate of composite materials under vacuum conditions and to suggest them for manufacturing composite torque tubes used in HTS motors.

근미래 친환경 건축분야 엔지니어에게 필요한 역량에 대한 델파이 연구 (A Delphi Study on Competencies of Future Green Architectural Engineer)

  • 강소연;김태연;이정우
    • 공학교육연구
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    • 제21권3호
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    • pp.56-65
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    • 2018
  • With rapid advance of technologies including information and communication technologies, jobs are evolving faster than ever. Architectural engineering is no exception in this regard, and the green architectural engineering is emerging fast as a promising new field. In this study, a Delphi study of expert architectural engineers are conducted to find out (1) near future prospects of the field, (2) near future emerging jobs, (3) competencies needed for these jobs, and (4) educational content necessary to build these competencies with regards to the green architectural engineering. Initial Delphi survey consisting of open-ended questions in the above four areas were conducted and came out with 65 items after duplicate removal and semantic refinements. Further refinements via second and third wave of Delphi results into 40 items that the 13 architectural engineering experts may largely agree upon as future prospects with regards to the green architectural engineering. Findings indicate that it is expected that the demand for green architectural engineering and needs for automatic energy control system increase. Also, collaborations with other fields is becoming more and more important in green architectural engineering. The professional work management skills such as knowledge convergence, problem solving, collaboration skills, and creativity linking components from various related areas seem to also be on the increasing need. Near future ready critical skills are found to be the building environment control techniques (thermal, light, sound, and air), the data processing techniques like data mining, energy monitoring, and the control and utilization of environmental analysis software. Experts also agree on new curriculum for green building architecture to be developed with more of converging subjects across disciplines for future ready professional skills and experiences. Major topics to be covered in the near future includes building environment studies, building energy management, energy reduction systems, indoor air quality, global environment and natural phenomena, and machinery and electrical facility. Architectural engineering community should be concerned with building up the competencies identified in this Delphi preparing for fast advancing future.

여성구술생애기록물 맥락 표현을 위한 메타데이터 구조화에 관한 연구 (A Study on metadata structuralization for context representation of women's oral life history)

  • 이정연;이정연;유종덕;이종윤
    • 기록학연구
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    • 제30호
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    • pp.57-88
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    • 2011
  • 구술은 생존자의 기억을 통해 재현된 내용을 기록화 시키는 작업으로 구술채록은 구술자, 면담자, 촬영자, 녹취자 등의 협업을 통해 수행된다. 따라서 구술기록물은 생산 당시의 맥락이 표현되는 것이 중요하며 구술기록물 수집을 위한 기획, 구술기록물 수집, 보존 및 관리가 체계적으로 이루어져야 한다. 이러한 문제의식에서 시작된 본 연구에서는 구술기록물 중에서도 여성구술생애기록물의 특성을 잘 반영할 수 있도록 메타 데이터의 개념 모델을 설계하고 이를 통하여 요소들을 추출 하였다. 여성구술생애기록물 관련 기획부터 생산, 보존, 관리, 이용에 이르는 기록 관리의 전 과정을 포함하여 계층으로 분류하였으며, 전거레코드와 주제 시소러스를 통해 '여성'의 특징을 표현할 수 있는 시스템을 제안하였다.