• Title/Summary/Keyword: shared library

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A Shared Library as an Active Memory Object for Application Software Development of Large Scale Real-time Systems (대형 실시간 시스템의 응용 소프트웨어 개발을 위한 능동적 메로리 개체로서의 공유 라이브러리)

  • 정부금;차영준김형환임동선
    • Proceedings of the IEEK Conference
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    • 1998.10a
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    • pp.233-236
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    • 1998
  • In this paper, we present a novel approach named a shared library as an active memory object for application software development of large-scale real-time systems. Unlike the general passive shared memory, shared library proposed in this paper can be activated as an execution object. Moreover this is not tightly coupled with application programs unlike the normal libraries. To implement this mechanism, operating system makes the shared memory as an active object and shared library realizes the indirect call structure. This mechanism enhanced the utilization of main memory and communication performance. And this is successfully applied to the HANbit ACE ATM switching system and the TDX-10 switching system.

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A Study on the Establishment and Administration Strategies of Shared Repositories for Academic Libraries: Focus on the US ReCAP Project (대학도서관 공동보존서고 설립 및 운영 방안 연구 - 미국 ReCAP 사례를 중심으로 -)

  • Chang, Yunkeum;Jeon, Kyungsun
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.32 no.4
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    • pp.213-229
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    • 2021
  • The purpose of this study is to explore the establishment and administrative strategies for shared repositories for academic libraries in Korea, using the US ReCAP (Research Collections and Preservation Consortium) Project as a case study. The US ReCAP Project was a collaboration between the New York Public Library and the university libraries of Columbia University, Harvard University, and Princeton University. In-depth interviews were conducted with librarians and administrators in charge of the ReCAP Project to understand the original vision of the project, as well as how the strategy and approach evolved over the years. The analysis results revealed that shared repositories for libraries have evolved into shared collections enabling shared use. But shared repositories require a central management system to be successful in the long-term. Additionally, findings showed that the shared repository filled more quickly than anticipated. This in turn required collaborative planning on shared collection development and selection policies to determine which materials to send to the shared repository.

A Study on the Establishment of the Cooperative Shared Storage for Public Libraries in Seoul Metro Area (공공도서관 공동보존서고 건립 방안 연구 - 서울특별시 공공도서관을 중심으로 -)

  • Yoon, Hee-Yoon;Chang, Durk Hyun
    • Journal of the Korean Society for Library and Information Science
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    • v.55 no.1
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    • pp.285-303
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    • 2021
  • Efforts to establish a joint preservation facility for library collection are being discussed by some of regional representative libraries recently. In order for the efficient management and preservation of public library materials and to secure the space necessary for applying new services, there is a high demand for a cooperative shared storage for public libraries. The construction of a cooperative shared storage for public libraries is to minimize the cost of expanding the preservation space for each public library and to provide a pleasant service environment by separating the low-use materials stored in the library. Accordingly, discussions on the construction of a cooperative shared storage for public libraries are being initiated by some representative libraries. This study, in this regard, tried to propose a plan to build a cooperative shared storage for public libraries by a Seoul Metropolitan Library. To this end, it surveyed the estimate size of the collections of public libraries in Seoul and, based on this, proposed the size and strategies for the facility.

A Study on the Cloud Collection (클라우드 컬렉션에 관한 연구)

  • Cho, Jane
    • Journal of Korean Library and Information Science Society
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    • v.43 no.1
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    • pp.201-219
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    • 2012
  • Cloud collection, which is derived from cloud computing, is a framework that creates new value through library cooperative platform to preserve and manage libraries' duplicated collection. Due to E-book market vitalization and mass digitalization of retrospective print material, new library collection management paradigm has been expected that licensed based E-book service and management of shared print repository. This study discuss cloud collection concept which digital repository and Shared print repository are in complementary relations. And suggest cloud collection model can be applicable to Korean university libraries.

A Study on "the Shared Acquisition System of Occidental Journals" of "University Library Information Cooperation Council in Pusan-Kyungnam Area" (부산.경남지역 대학도서관 정보교류협의회 외국학술잡지 분담수설시스템에 관한연구)

  • 송영희
    • Journal of Korean Library and Information Science Society
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    • v.33 no.4
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    • pp.241-259
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    • 2002
  • This paper is a study on the current statues of the shared acquisition system of occidental journals in 6 university libraries belonging to Pusan-Kyungnam Area University Information Cooperation Council. The study discusses theoretical background of a shared acquisition in general and historical development and analyzes the current status of the system. Also the study examines the usefulness. effectiveness and problems of the system.

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Comparative Analysis of Shared Space Needs according to Social Class through Small Group Workshop Panel Method (거주자특성별 주민공유공간 요구에 대한 연구 - 소집단워크샵패널방법을 이용하여 -)

  • 이연숙
    • Journal of the Korean housing association
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    • v.8 no.1
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    • pp.1-12
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    • 1997
  • The purpose of this research is to identify user needs for community space design, especially shared space. and compare them according to social class. Since the shared space concept is new, it will be difficult for residents to familiarize themselves with the new idea. This study used a Small Croup Workshop Panel Method instead of the conventional survey method for this reason The subjects were 6 Panel groups of S people per each group. Bach of the panels included 3consecutive workshops. The results can be summarised as follows. All the residents wanted various kinds of shared spaces for everyday living and leisure activity While there were generally great similarity regardless of resident's sub characteristics, some founed distintively dissimilar. The residents of 20s pyung apartment wanted day-care center, multi Purpose room for meeting and family events, library, study room, sports facilities, and cultural center in order. The shared spaces that residents of 30s pyung apartment wanted were library. study room. common dining, sports facilities. and cultural center in order. The residents of 50s pyung apartment wanted library, study room. multi purpose room, common storage, sports facilities. and cultural center in order. These findings imply some diverse plans instead of uniform ones are to be deliberately considered, This results can be usefully applied to develop new collective housing for different social class residents.

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A Study on Design Elements and Infrastructure System of Library Space as a Place of Shared Culture (공유문화의 장으로서의 도서관 공간의 설계요소 및 인프라 체계 연구)

  • Hwang, Mee-Young
    • Korean Institute of Interior Design Journal
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    • v.27 no.2
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    • pp.86-97
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    • 2018
  • In modern times, pluralistic social phenomena in which various values are pursed and recognized appear. The modern society called hyper-connected, intelligence information and zero marginal cost society in which shared value is commonly emphasized faces a paradigm shift to shared society system. In particular, sharing-based activities related with intelligence information sectors more prominently emerge in the high-tech informatization which has been accelerated. The purpose of this study is to understand design factors related with how attribution of the sharing culture is expressed in library spaces and examine how sharing infrastructure is established in users' spaces. As a research method, it initially conducted theoretical consideration of the sharing culture and information spaces, which can be regarded as sociocultural phenomena in modern times. Then, it drew sharing culture-based spatial design factors-access, openness and plurality. It analyzed configuration of spaces for sharing information-Cultural Commons (CC), Information Commons(IC) and Learning Commons (LC) - and infrastructure of information spaces, for library cases-five domestic and foreign public libraries-. The findings show that modern library spaces reflect historical needs for the sharing culture and actively serve their roles through spatial infrastructure including contents (programs) and services for sharing knowledge. The study is determined to be valuable as basic data in establishing the infrastructure of information spaces reflecting modern social trends and cultural phenomena, in expecting spatial structures in which knowledge is reproduced and planning spaces of libraries in the future.

Internalization Problem in the Field of Library and Information Science in the People's Republic of China (중국 도서관학정보학 영역의 국제화 문제)

  • Duan Ming-lian
    • Journal of the Korean Society for Library and Information Science
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    • v.27
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    • pp.365-390
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    • 1994
  • The article sets forth a problem on international exchange and cooperation In the field of library and information science in the People's Republic of China from engles of academic and publication's exchange, It points out international exchange and cooperation between China and Korea should be developed from international exchange of publications and interlibrary loan to openning up standard, authority and current database on publications step by step. China and Korea should supply the database to all of the world, In order to come up to shared resources, the author has compared the Descriptive Cataloguing Rules for Western Language Materials, and the Bibliographical Description for Monographes with the Korean Cataloguing Rules for Description, and analyzed their different. In the end, the article presents the result that the documentation standardzation is the only way of accomplishing shared resources in the world from indentity of description for publications and materials, and unity of cataloguing rules.

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Shared Memory Model over a Switchless PCIe NTB Interconnect Network

  • Lim, Seung-Ho;Cha, Kwangho
    • Journal of Information Processing Systems
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    • v.18 no.1
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    • pp.159-172
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    • 2022
  • The role of the interconnect network, which connects computing nodes to each other, is important in high-performance computing (HPC) systems. In recent years, the peripheral component interconnect express (PCIe) has become a promising interface as an interconnection network for high-performance and cost-effective HPC systems having the features of non-transparent bridge (NTB) technologies. OpenSHMEM is a programming model for distributed shared memory that supports a partitioned global address space (PGAS). Currently, little work has been done to develop the OpenSHMEM library for PCIe-interconnected HPC systems. This paper introduces a prototype implementation of the OpenSHMEM library through a switchless interconnect network using PCIe NTB to provide a PGAS programming model. In particular, multi-interrupt, multi-thread-based data transfer over the OpenSHMEM shared memory model is applied at the implementation level to reduce the latency and increase the throughput of the switchless ring network system. The implemented OpenSHMEM programming model over the PCIe NTB switchless interconnection network provides a feasible, cost-effective HPC system with a PGAS programming model.

Attacking OpenSSL Shared Library Using Code Injection (코드 주입을 통한 OpenSSL 공유 라이브러리의 보안 취약점 공격)

  • Ahn, Woo-Hyun;Kim, Hyung-Su
    • Journal of KIISE:Computer Systems and Theory
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    • v.37 no.4
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    • pp.226-238
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    • 2010
  • OpenSSL is an open-source library implementing SSL that is a secure communication protocol. However, the library has a severe vulnerability that its security information can be easily exposed to malicious software when the library is used in a form of shared library on Linux and UNIX operating systems. We propose a scheme to attack the vulnerability of the OpenSSL library. The scheme injects codes into a running client program to execute the following attacks on the vulnerability in a SSL handshake. First, when a client sends a server a list of cryptographic algorithms that the client is willing to support, our scheme replaces all algorithms in the list with a specific algorithm. Such a replacement causes the server to select the specific algorithm. Second, the scheme steals a key for data encryption and decryption when the key is generated. Then the key is sent to an outside attacker. After that, the outside attacker decrypts encrypted data that has been transmitted between the client and the server, using the specified algorithm and the key. To show that our scheme is realizable, we perform an experiment of collecting encrypted login data that an ftp client using the OpenSSL shared library sends its server and then decrypting the login data.