• Title/Summary/Keyword: Integration problems

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THE SIMPLICATION OF DYNAMICS FOR THE FLEXIBLE BODY (유연성을 갖는 매니퓰레이터 역학방정식의 간략화)

  • Park, Hwa-Sea;Bae, Jun-Kyung;Nam, Ho-Pub;Park, Chong-Kuk
    • Proceedings of the KIEE Conference
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    • 1988.07a
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    • pp.950-953
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    • 1988
  • The equations of motion for linearly elastic bodies undergoing large displacement motion are derived. This produces a set of equations which are efficient to numerically integrate. The equations for the elastic bodies are formulated and simplified to provide as much efficiency as possible in their numerical solution. A futher efficiency is obtained through the use of floating reference frame. The equation are presented in two forms for numerical integration. 1) Explicit numerical integration 2) Implicit numerical integration. In this paper, there was used the numerical integration. The implicit numerical integration is extended to solved second order equation, futher reducing the numerical effort required. The formulation given is seen to be occulate and is expected to be efficient for many types of problems.

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Various Dielectric Thick Films for Co-Integration of Passive and Active Devices by Aerosol Deposition Method (Aerosol Deposition Method에 의한 수동소자와 능동소자의 동시 직접화를 위한 다양한 유전체 후막)

  • Nam, Song-Min
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2008.06a
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    • pp.348-348
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    • 2008
  • In recent, the concept of system-on-package (SOP) for highly integrated multifunctional systems has been paid attention to for the miniaturization and high frequency of electronic devices. In order to realize SOP, co-integration of passive devices, such as capacitors, resistors and inductors, and active devices should be achieved. If ceramic thick films can be grown at room temperature, we expect to be able to overcome many problems in conventional fabrication processes. So, we focused on the aerosol deposition method (ADM) as room temperature fabrication technology. ADM is a novel ceramic coating method based on the Room Temperature Impact Consolidation (RTIC) phenomena. This method has a wide range potential for fabrication of co-integration of passive and active devices. In this paper, I will present the future potential of ADM introducing various ceramic dielectric thick films for the integration of electronic ceramics.

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Advanced Integration of Building Automation System (빌딩 오토메이션 시스템의 향상된 통합 방안)

  • Leem, Chae-Sung;Shim, Il-Joo;Chang, Kyung-Bae;Baek, Sang-Min;You, Jong-Il;Jung, Eui-Kuk;Park, Gwi-Tae
    • Proceedings of the KIEE Conference
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    • 2003.11c
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    • pp.496-499
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    • 2003
  • System Integration is significant role in building, because it is that the more building system is integrated, the more they can save management costs and energy costs. Nowadays system protocols in building use BACnet, LonWorks, etc. to integrate effectively, but their interoperability is not perfect. Therefore, we propose system integration using Ethernet and TCP/IP for perfect harmony. When data network protocol, Ethernet and TCP/IP is used for control network, there are several problems. But there have been solved by many researches. therefore it is possible that building system integrate to use Ethernet and TCP/IP. Finally, we show that Ethernet and TCP/IP can be used for building automation system integration.

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Numerical Evaluation of Various Numerical Integration Methods in Free Vibration Analysis (자유진동 해석에서 수치적분기법의 수치적평가)

  • 송주한;안대순;오상진;박광규
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2001.11b
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    • pp.1249-1253
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    • 2001
  • Numerical analysis is sometimes used to solve the problems in the engineering and natural science fields. On this reason, the faster, more practical system in computing the numerical solution is required. This paper deals with the numerical evaluation of various numerical integration methods which is frequently used in the engineering fields. This paper choices four integration methods such as Euler method, Heun's method, Runge-Kutta method and Gill's method for evaluating the each integration method. In numerical examples, the free vibration problem on an elastic foundation is chosen. As the numerical results, the natural frequencies and the running time are obtained, and these results are compared to examine the practicality of integration methods.

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Schema Integration Methodology and Toolkit for Heterogeneous and Distributed Geographic Databases

  • Park, Jin-Soo
    • Journal of Korea Society of Industrial Information Systems
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    • v.6 no.3
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    • pp.51-64
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    • 2001
  • Schema integration is one of the most difficult issues in the heterogeneous and distributed geographic database systems (GDSs). As the use of spatial information in various application areas becomes increasingly popular, the integration of geographic information has become a crucial task for decision makers. Most existing schema integration techniques described in the database literature, however, do not address the problems of managing heterogeneities among complex objects that contain visual data and/or spatial and temporal information. The difficulties arise not only from the semantic conflicts, but also from the different representations of spatial models. Consequently, it is much more complex to achieve interoperability in the area of geographic databases. This research attempts to provide a solution to such problems. The research reported in this paper describes a schema integration methodology and a prototype toolkit developed to assist in schema integration activities for GDSs.

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The Critical Perspectives and Implications of the Migrant Policies in the West: based on Assimilation, Multiculturalism, and Social Integration Policy (서구의 이주자 정책에 대한 비판적 접근과 시사점 - 동화, 다문화주의, 사회통합 정책을 중심으로 -)

  • Lee, Yong Gyun
    • Journal of the Korean association of regional geographers
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    • v.20 no.1
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    • pp.112-127
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    • 2014
  • This study aims to understand the change of migrant policies, namely assimilation, multiculturalism and social integration, in the West through critical perspectives and to derive implications for the Korea's migrant policy from the experience of the West. In 1970s, assimilation policy was severely criticized from the limitation of cultural diversity, and multiculturalism expanded rapidly in the West focusing on the migrant's right and cultural difference. However, multiculturalism received severely criticism because it makes social isolation and segregation between mainstream society and migrants. Since 2000 social integration became the major policy for migrant incorporation, focusing migrant's attitude and practice to receive the value and culture of mainstream society with the active participation of socioeconomic activities. However, social integration policy reveal some problems which regard migrants as the object of control, and also as the object of discrimination. The experience of the Western policies suggests on the careful selection for the migrant's incorporation policies in Korea with the consideration of social inclusion of migrant, analysis on the problems of multiculturalism and social integration policy, and the necessity of mainstream society's change into the acculturation.

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A Comparative Analysis for the Awareness of the Integration of Korea's Port Authorities (우리나라 항만공사 조직구성원들의 통합의도에 관한 비교연구)

  • Ha, Myungshin
    • Journal of Korea Port Economic Association
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    • v.28 no.3
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    • pp.1-25
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    • 2012
  • In order to solve the current problems and inefficiencies within the Port Authorities (PA) in Korea, this study introduces the concept of the integration of PA and analyses the awareness of intention of integration. This study is based on analysing the surveys conducted by the members of PA. This research shows that there were different perceptions on the autonomy, business strategy intension, information sharing efficiency, competition, environment and technique change, capital finance, easy finance risk, curtailment of expenditure, personnel management efficiency in PA. Results of the study indicate that YGPA has more clear understanding on the awareness of integration of PA than other PAs. The results of this research will serve as a basic literature for further studies on the integration of PA in Korea. Moreover, the problems that have been identified and analysed in this study will contribute to establishing the strategy for further development of PA in Korea.

A Study on the Management of Name Identifier System for ISNI-based Data Integration (ISNI 기반 데이터 융합을 위한 저자식별체계 운용에 관한 연구)

  • Lee, Seungmin;Kwak, Seung-Jin;Oh, Sanghee;Park, Jin Ho
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.30 no.1
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    • pp.29-51
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    • 2019
  • Most fields of society have constructed and utilized various name identifier systems such and International Standard Name Identifier(ISNI), Open Researcher and Contributor ID(ORCID), and Interested Parties Information System(IPI) in order to uniquely identify individual authors and institutions and to associate them to data related to creative works. Although it might be inevitable to apply name identifier systems in the current data environment with rapid association and integration of data across fields, there are many problems to be addressed when utilizing those systems. In order to overcome these problems and construct better information ecological system by associating and linking data from various fields, this research analyzed advanced cases for data integration based on ISNI. Through the analysis, it suggested managemental refinements for efficiently utilizing ISNI in data integration and association.

The Hybrid Knowledge Integration Using the Fuzzy Genetic Algorithm

  • Kim, Myoung-Jong;Ingoo Han;Lee, Kun-Chang
    • Proceedings of the Korea Database Society Conference
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    • 1999.06a
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    • pp.145-154
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    • 1999
  • An intelligent system embedded with multiple sources of knowledge may provide more robust intelligence with highly ill structured problems than the system with a single source of knowledge. This paper proposes the hybrid knowledge integration mechanism that yields the cooperated knowledge by integrating expert, user, and machine knowledge within the fuzzy logic-driven framework, and then refines it with a genetic algorithm (GA) to enhance the reasoning performance. The proposed knowledge integration mechanism is applied for the prediction of Korea stock price index (KOSPI). Empirical results show that the proposed mechanism can make an intelligent system with the more adaptable and robust intelligence.

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Analysis of Linear Time-invariant System by Using a New Block Pulse Operational Matrices (새로운 일반형 블럭 펄스 적분 연산 행렬을 이용한 선형 시불변 시스템 해석)

  • Lee, Hae-Ki;Kim, Tai-Hoon
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.53 no.4
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    • pp.175-182
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    • 2004
  • This paper presents a new method for finding the Block Pulse series coefficients, deriving the Block Pulse integration operational matrices and generalizing the integration operational matrices which are necessary for the control fields using the Block Pulse functions. In order to apply the Block Pulse function technique to the problems of state estimation or parameter identification more efficiently, it is necessary to find the more exact value of the Block Pulse series coefficients and integral operational matrices. This paper presents the method for improving the accuracy of the Block Pulse series coefficients and derives generalized integration operational matrix and applied the matrix to the analysis of linear time-invariant system.