• Title/Summary/Keyword: U-Capability

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An Analysis of the Status of Digital Divide on Students and Teachers at Elementary and Secondary Schools in Gyeongnam (경남도내 초중등 학생 및 교사의 정보격차 현황 분석)

  • Kim, Min-Ki;Nam, Young-Ho
    • Journal of The Korean Association of Information Education
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    • v.11 no.4
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    • pp.433-445
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    • 2007
  • Digital divide comes to appear as a new factor of causing social inequality with the entry of information society. Especially, the digital divide in student class makes a worry about education inequality as the education using ICT, e-learning, and u-learning are enlarged. So, the concern about the status of digital divide in school is increasing. In this study, we conducted a questionnaire survey of students and teachers in elementary and secondary schools located in Gyeongnam, and measured informatization level with the weighted average of three subindices : accessing index, capability index, and utilization index. According to the survey, the index on information processing capability showed the largest gap in both the student group and the teacher group. We also had the result of positive correlation between the capability index and the utilization index. These results show that the gap of information processing capability is an important factor for understanding the digital divide.

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An Empirical Study on the Influencing Factors on the Technology Performance in the Embedded Firms and The Moderating Effect of Government Support (국내 임베디드 기업의 기술성과에 미치는 영향요인과 정부지원의 조절효과)

  • Moon, Tae-Soo;Kim, Sung-Min;Kim, Kab-Sik
    • Journal of Digital Convergence
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    • v.6 no.4
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    • pp.137-145
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    • 2008
  • Embedded industry has emerged as one of the important industry for u-IT based application service. Technology development related to embedded hardware and software provides the base for the development of U-IT convergence industry. This study intends to suggest a research model to investigate the influence of industry, organization, technology factors on technology performance in the embedded companies. This study adopted research variables such as global network, local network, industry intensity, and technology capability as independent variables, with technology performance as a dependent variable from the existing literatures. The purpose of this study is to analyze the influence of industrial and organizational factors on technology performance of embedded companies SCM systems, including the moderating effect of government support. 94 companies data were collected by survey. The result of this empirical study is summarized as follows. First, local network and technology capability are the important determinants to influence technology performance of embedded companies in direct effect model. Second, global network and industry intensity has more positive influence on technology performance of embedded companies through a moderating variable of government support.

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Shift in Warfare Paradigm and Military Transformation (전쟁패러다임의 전환과 군사변혁)

  • Jeong, Chun-Il
    • Journal of National Security and Military Science
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    • s.4
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    • pp.381-418
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    • 2006
  • In present, advanced countries in the world are seen concentring on Military Transformation to create new military capability as there is a shift in Warfare Paradigm. Rapid development of technology enables military system, operational concept and organization innovated. As a result, Revolution in Military Affairs(RMA) that dramatically increased warfighting capability is pursued. Especially, advanced information technology constructs system of systems with abilities of battle visualization, information sharing in battlefield, long-range strike capability that are interoperable and combined. Corresponding to this, engagement methods and organizations are being progressively developed. The purpose of this thesis is overview of newly developing Warfare Paradigm and analysis of tendency of Military Transformation that advanced countries are pursuing preparation to this. Above all, specific aspects and contents of the Warfare Paradigm which emerged by information age were summarized. Subsequently, Military Transformation which provides the basic concepts and principles to the advanced countries in the world for the creation of new military capability was discussed. In conclusion, the tendency of Military Transformation by U.S.A, Japan, China, and Russia surround the Korean peninsular as the major power in military was carefully observed.

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Land Capability Classification of Upland of the Base of Soii and Meteorological Factors in Korea. (한국의 기상및 토양조건과 토지능력구분)

  • 김학영
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.7 no.2
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    • pp.935-943
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    • 1965
  • 1. Nation wide soil surver is going of from Oct't by Unkup. According to the sever years program of national high hueld of food production campaign. 2. About eighry of new soil surveryors wee assigned to provincial office of Unkup. 3. Land capability classifieation comes from U.S.D.A method. Bur we fells most adequate land classification should be studied and set uo of the real Korean Natural situation. 4. This theory has been studied by the Unkup soil survey staffs.

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McCARD/MIG stochastic sampling calculations for nuclear cross section sensitivity and uncertainty analysis

  • Ho Jin Park
    • Nuclear Engineering and Technology
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    • v.54 no.11
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    • pp.4272-4279
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    • 2022
  • In this study, a cross section stochastic sampling (S.S.) capability is implemented into both the McCARD continuous energy Monte Carlo code and MIG multiple-correlated data sampling code. The ENDF/B-VII.1 covariance data based 30 group cross section sets and the SCALE6 covariance data based 44 group cross section sets are sampled by the MIG code. Through various uncertainty quantification (UQ) benchmark calculations, the McCARD/MIG results are verified to be consistent with the McCARD stand-alone sensitivity/uncertainty (S/U) results and the XSUSA S.S. results. UQ analyses for Three Mile Island Unit 1, Peach Bottom Unit 2, and Kozloduy-6 fuel pin problems are conducted to provide the uncertainties of keff and microscopic and macroscopic cross sections by the McCARD/MIG code system. Moreover, the SNU S/U formulations for uncertainty propagation in a MC depletion analysis are validated through a comparison with the McCARD/MIG S.S. results for the UAM Exercise I-1b burnup benchmark. It is therefore concluded that the SNU formulation based on the S/U method has the capability to accurately estimate the uncertainty propagation in a MC depletion analysis.

A practical modification to coaxial cables as damage sensor with TDR in obscured structural members and RC piles

  • Mehmet Ozgur;Sami Arsoy
    • Structural Monitoring and Maintenance
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    • v.10 no.2
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    • pp.133-154
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    • 2023
  • Obscured structural members are mostly under-evaluated during condition assessment due to lack of visual inspection capability. Insufficient information about the integrity of these structural members poses a significant risk for public safety. Time domain reflectometry (TDR) is a novel approach in structural health monitoring (SHM). Ordinary coaxial cables "as is" without a major modification are not suitable for SHM with TDR. The objective of this study is to propose a practical and cost-effective modification approach to commercially available coaxial cables in order to use them as a "cable sensor" for damage detection with the TDR equipment for obscured structural members. The experimental validation and assessment of the proposed modification approach was achieved by conducting 3-point bending tests of the model piles as a representative obscured structural member. It can be noted that the RG59/U-6 and RG6/U-4 cable sensors expose higher strain sensitivity in comparison with non-modified "as is" versions of the cables used. As a result, the cable sensors have the capability of sensing both the presence and the location of a structural damage with a maximum aberration of 3 cm. Furthermore, the crack development can be monitored by the RG59/U-6 cable sensor with a simple calibration.

Design of Improved U-Slotted Patch Antennas with EBG Ground Plane (EBG(Electromagnetic Band-Gap) 접지면을 갖는 개선된 U-Slotted 패치 안테나의 설계)

  • Park, Jong-Hwan;Lim, Seong-Bin;Choi, Hak-Keun
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.19 no.3
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    • pp.304-310
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    • 2008
  • Generally U-slotted patch antenna with PEC(Perfect Electric Conductor) ground plane is used for mobile telecommunication. However the improvement of the bandwidth is required to enlarge the capability of mobile telecommunication, In this paper, U-slotted patch antenna with EBG(Electromagnetic Band-Gap) ground plane is proposed to enlarge thr bandwidth and its radiation characteristics are investigated. To conform the bandwidth improvement, two kinds of U-slotted patch antennas with EBG and PEC ground plane are designed, fabricated, and radiation characteristics are measured. It is shown that the proposed antenna is wider than U-slotted patch antenna with PEC ground plane in bandwidth.

Workload Smoothness in U-Shaped Production Lines Using Genetic Algorithms (유전알고리듬을 이용한 U라인의 작업부하 평활화)

  • 김동묵;김여근
    • Journal of the Korean Operations Research and Management Science Society
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    • v.24 no.3
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    • pp.27-37
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    • 1999
  • In just-in-time production systems, U-shaped production lines rather than traditional straight lines are often adopted since they have some advantages. The advantages of U-lines over straight lines are that the workstations required can be reduced and the necessary number of workers can be easily adjusted when the demand rates are changed. In this paper, we present a new heuristic based on genetic algorithm to improve the workload smoothness in the U-line. In the proposed algorithm, a new genetic representation is developed which is specific to the problem being solved. To enhance the capability of searching good solutions, genetic operators are designed by using the problem-specific information and heuristics. Extensive experiments are carried out on well-known test-bed problems in the literature to verify the performance of our algorithm. The computational results show that our algorithm is a promising alternative to existing heuristics.

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