• Title/Summary/Keyword: Shift strategy

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Test Time Reduction for BIST by Parallel Divide-and-Conquer Method (분할 및 병렬 처리 방법에 의한 BIST의 테스트 시간 감소)

  • Choe, Byeong-Gu;Kim, Dong-Uk
    • The Transactions of the Korean Institute of Electrical Engineers D
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    • v.49 no.6
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    • pp.322-329
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    • 2000
  • BIST(Built-in Self Test) has been considered as the most promising DFT(design-for-test) scheme for the present and future test strategy. The most serious problem in applying BIST(Built-in Self Test) into a large circuit is the excessive increase in test time. This paper is focused on this problem. We proposed a new BIST construction scheme which uses a parallel divide-and-conquer method. The circuit division is performed with respect to some internal nodes called test points. The test points are selected by considering the nodal connectivity of the circuit rather than the testability of each node. The test patterns are generated by only one linear feedback shift register(LFSR) and they are shared by all the divided circuits. Thus, the test for each divided circuit is performed in parallel. Test responses are collected from the test point as well as the primary outputs. Even though the divide-and-conquer scheme is used and test patterns are generated in one LFSR, the proposed scheme does not lose its pseudo-exhaustive property. We proposed a selection procedure to find the test points and it was implemented with C/C++ language. Several example circuits were applied to this procedure and the results showed that test time was reduced upto 1/2151 but the increase in the hardware overhead or the delay increase was not much high. Because the proposed scheme showed a tendency that the increasing rates in hardware overhead and delay overhead were less than that in test time reduction as the size of circuit increases, it is expected to be used efficiently for large circuits as VLSI and ULSI.

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An Empirical Assessment of the Strategic Roles of e-Learning Center in the Community of Local Universities (지역 대학 e-Learning 센터의 전략적 역할분석에 관한 연구)

  • Jeong Dae-Yul;Kim Kwon-Su
    • The Journal of Information Systems
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    • v.14 no.2
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    • pp.75-99
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    • 2005
  • Today, many universities are confronted with the changing education paradigm such as e-learning, Distance Education, Virtual University, This IT-based teaming paradigm shift is certainly a new opportunity or a threat to our universities. To overcome this problem the universities should think e-Learning as strategic weapon, such as many firms created competitive weapons from the information systems at the 1980s. So, e-Learning system can be a SIS(Strategic Information System) which supports university's future education strategies. To build a e-Learning system, not only many H/W and S/W resources but also expert personnels are required. An organization such as local university who is week at financial status can't himself plan the system. The Local University Community e-Learning Centers that support the demand of e-learning for their community are recommended. In order to operate these centers efficiently, the strategic roles of the e-Learning center should first be defined. To define the strategic roles, We classified the strategic roles of the e-Learning center into four dimensions, (1) to improve management efficiency, (2) to enhance educational service, (3) to acquire competitive advantages, (4) to build new education infrastructure, and each dimension has 5 or 6 measurement items. As result, to enhance the educational service was considered as the most significant factor among the four dimensions of strategic roles, and the infrastructure building was the next. We also tried to find the difference for each factor by the characteristics of responsor. The data showed that there was litter difference between the groups in evaluating the significance of strategic roles of e-learning centers. Through the strategic roles definition and analysis of expected role ratings, we could have recommended the direction and operation policies of the e-Loaming centers.

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Record Keeping of Employee Exposure to Chemical Hazards under Industrial Safety and Health Law (근로자의 화학물질 노출관련 기록 보존에 관한 연구)

  • Oh, Sangmin;Park, Donguk;Yu, SeoungJae;Jung, Jin Woo;Lim, KyungTaek;Lee, Jaehwan;Ha, Kwonchul
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.23 no.4
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    • pp.367-373
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    • 2013
  • Objectives: Employee exposure record refers to a record containing information about environmental (workplace) monitoring or measuring of a toxic substance or harmful physical agent. The aims of this study were to examine problems related to exposure records and provide some amendments to the Korean Industrial Safety & Health Act for the effective management of chemical substances under the law. Methods: This study performed a literature search and review on legal provisions related to exposure records of a number of different countries, including Korea, the USA, Japan, EU, Germany, and the UK. They were compared and investigated and the amendment of articles was suggested. Results: The results of this study were provided as suggested amendments to the related act. There were a variety of ways of improvement, including a 30-year retention period and the introduction of new access methods, contents, transfer, and maintenance methods. All exposure data elements have to be standardized, including reference to a similar exposure group (SEG), sampling strategy, and circumstances of exposure (e.g., date, shift length, use of personal protective equipment, etc.). The SEGs are described by process, job, task, and environmental agent. Conclusions: This study is expected to provide for the amendment of the related act in order to ensure effective management of exposure records and is helpful for solving the cause and result of occupational disease by keeping exposure records according to the Industrial Safety & Health Act.

A Study on Development of the Evaluation Model about Level of Security in National R&D Program (국가연구개발사업 연구보안수준 평가모델 개발에 관한 연구)

  • Bae, Sang Tae;Kim, Ju Ho
    • The Journal of Korean Association of Computer Education
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    • v.16 no.1
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    • pp.73-80
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    • 2013
  • Government promotes that the strategy of national R&D converts from catch-up R&D type to leading R&D type for the future growth and national competitiveness according to the recent paradigm shift in the research and development. So the many national researches about foundation, source and core technology are actively being made. As a result of these researches, the security has become an important part of success factor in R&D. And so various security diagnosis and evaluation is being conducted about national R&D program. Existing the research security evaluation models are classified domains in terms of security management and created evaluation indicators according to the domains. However the models are inappropriate in case of researchers doing self-diagnosis of research security. This paper set up the domains in aspect of research management and then proposed the evaluation indicator of research security according to the domains. The evaluation indicator model that is suggested can be utilized in self-diagnosis of research security effectively.

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A Study on Trends of Spatial Information Technology and Network Configuration of Smart Society (공간정보 기술동향과 스마트사회 네트워크 구성에 관한 연구)

  • Kang, Young-mo;Kang, Chan-woo;Han, Kyeong-seok;Kim, Jong-bae
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2015.05a
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    • pp.907-914
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    • 2015
  • Currently, the previous studies on the concept, configuration, and system regarding spacial information policies show the little progress. However, these studies only propose the basic structure system in terms of a policy theory, seeking and suggesting the basic concept to establish spacial information policies. In the shift of a new paradigm from a PC-based paradigm that began in the mid-2000s to the current smart society based on mobile devises, such as smart phones, this study thus reviewed the strategic direction of the propulsion to establish the desired future strategy for the spatial technology policy with spatial information system that can influence the future national competitiveness of Korea. The results of this study is expected to be used to analyze a variety of issues and technological changes on geospatial intelligence at the global level and to support the establishment of a road-map for policies and research & development on domestic geospatial information.

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A Study on Evaluation of Administration Service Quality of District Office (구청 행정서비스품질 평가에 관한 연구)

  • Choi, Yong-Jung;Jung, Sang-Yun
    • Journal of the Korea Society of Computer and Information
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    • v.16 no.1
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    • pp.191-199
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    • 2011
  • Under the influence of a paradigm shift for administrative service of public institutions in around the world, the 'Government Affairs Assessment Act' has been enacted in Korea in March 2006. By the law, each local governments have been obligating to conduct self-assessment and resident's satisfaction survey for improving administrative service. Thus, the purpose of this study is to evaluate the administrative service quality of district offices(in seoul) in order to meet the government's efforts, and to derive improvement point of administrative service quality in district office. Consequently, this study shows administrative service quality factors affecting resident's overall satisfaction degree, service value maturity and positive image maturity of district office and then, will explore improvement ways of each district office through attribute analysis of administrative service quality.

The study on software firm's catch-up Innovation Pattern: Focus on case study between Korean and U.S. Open Source Software Firms (소프트웨어 기업의 기술추격 과정 연구: 한국과 미국의 오픈 소스 소프트웨어 기업의 사례를 중심으로)

  • Joo, ChulHwee;Lee, Heesang
    • Journal of Technology Innovation
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    • v.21 no.1
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    • pp.109-139
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    • 2013
  • The objective of this study attempt to examine the prospect whether conventional catch-up theory is also applicable to knowledge intensive industry like Open Source Software(OSS), and the implication from this study can be working as a stepping stone for followers. To do this, we conducted Korean SW firm's interview, and examined U.S. firm's archivings and second source of informations by means of empirical study. We use the inflection point of paradigm shift and difference of technology regime as a framework for empirical study of catch-up process between U.S. and Korean OSS firms. We find that conventional catch-up theory is no more applicable to explain OSS firm's catch-up processes. We also identified the elements that will accelerate the catch-up processes more effectively from the comparison of technology regime between U.S. and Korean OSS firms. As a result, we diagnose the limitation of conventional catch-up theory and discuss the new technology regime which will, ironically, promote the catch-up processes from the condition of low appropriation.

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BestChoice SRM: A Simple and Practical Supplier Relationship Management System for e-Procurement (BestChoice SRM: 전자 조달을 위한 단순하며 실질적인 공급사 관계 관리 시스템)

  • Lee, Dong-Joo;Kang, Seung-Seok;Lee, Sang-Keun;Kim, Young-Gon;Chang, Jun-Ho;Lee, Sang-Goo
    • The Journal of Society for e-Business Studies
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    • v.12 no.3
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    • pp.177-191
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    • 2007
  • Supplier relationship management (SRM) is an important contributor to a company's efficiency and credibility. Although several ways are used to provide SRM functionality, these are often not easily integrated with existing procurement systems. We designed and implemented a practical SRM system called BestChoice SRM and present its design and architecture. It has the core functionality of SRM with the simple adaptability of BestChoice which is a decision support system for evaluating suppliers with the aid of visualized analysis It allows seamless integration with existing systems and permits flexible strategy changes as market conditions shift. The key to this flexibility is template-based segmentation. Ease of integration was demonstrated through the installation of BestChoice SRM at a major Korean commercial e-procurement agency.

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Positioning Analysis of Busan port in Inter-Port competition of Northeast Asia Region (동북아지역 항만간 경쟁에서 부산항의 포지셔닝 분석)

  • Kim, Geun-Sub;Kwak, Kyu-Seok
    • Journal of Navigation and Port Research
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    • v.32 no.3
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    • pp.173-178
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    • 2008
  • Asian container market, expecially in the NEA(Northeast Asia) region, has been growing continuously according to international specialization of manufacturers. The circumstances surrounding port industry has also been changing rapidly. Global liner and GTO( Global Terminal Operators} have strengthen there market share with M&A and increased entry to Asia market. The competition in NEA have deepen with change of circumstance and the growth of Chinese ports while Busan port decreasing its growth rate and market share. Therefore, this study analysed the change of the port concentration in NEA and the positioning of Busan port by year. In the result, the competitive position of Busan port weakening continuously and loss much volume to competition port, and it suggests that a globalization strategy is essential for making sure of competitiveness based on the result of this paper.

A Study of the Changes in University Library Space and their Assessment Strategies (대학도서관 공간구성 변화 및 평가방안 연구)

  • Chang, Yunkeum
    • Journal of the Korean Society for information Management
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    • v.31 no.4
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    • pp.229-248
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    • 2014
  • University libraries have been attempting to reorganize their space through new building construction and remodeling to cope with the rapid changes in information and communication technologies and university environment. These changes seem to reflect the need for the shift of the university library functions toward the facilitator role of enabling continuous learning and research through space reorganization beyond the traditional supporter role of preserving and supplying library materials and providing learning space and services to university members. Despite all these changes of university library space functions, however, their assessment has been still limited to the library users' satisfaction and usage changes before and after library building renovation or new construction, calling for the need to develop proper measurement tools for evaluating the library functions as learning commons that reflect university vision and goals. Therefore, this study intends to analyze the trend of space reorganization practices in university libraries and the studies of evaluating its effect, in order to develop tools to evaluate the effectiveness of space reorganization and to provide basic data for future space reorganization and assessment strategies.