• 제목/요약/키워드: Designing strategies

검색결과 311건 처리시간 0.02초

능동구속층 감쇠를 이용한 판의 동역학적 해석 (Dynamic Analysis of Plates with Active Constrained Layer Damping)

  • 박철휴
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2004년도 춘계학술대회논문집
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    • pp.581-586
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    • 2004
  • This paper presents Newtonian formulation of the dynamics of plates treated fully with Active Constrained Layer Damping (ACLD). The developed equations of the plate/ACLD system provide analytical models far predicting the dynamic of laminated plates subjected to passive and active vibration damping controls. Numerical solutions of the analytical models are presented fir simply-supported plates in order to study the performance of the plate/ACLD system for different control strategies. The developed models present invaluable means for designing and predicting the performance of the smart laminated plates that can be used in many critical engineering applications.

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Tetra Primer ARMS PCR Optimization to Detect Single Nucleotide Polymorphisms of the CYP2E1 Gene

  • Suhda, Saihas;Paramita, Dewi Kartikawati;Fachiroh, Jajah
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권7호
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    • pp.3065-3069
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    • 2016
  • Single nucleotide polymorphism (SNP) detection has been used extensively for genetic association studies of diseases including cancer. For mass, yet accurate and more economic SNP detection we have optimized tetra primer amplification refractory mutation system polymerase chain reaction (ARMS PCR) to detect three SNPs in the cytochrome P450 2E1 (CYP2E1) gene locus; i.e. rs3813865, rs2070672 and rs3813867. The optimization system strategies used were (1) designing inner and outer primers; (2) determining of their optimum primer concentration ratios; and (3) determining of the optimum PCR annealing temperature. The tetra primer ARMS PCR result could be directly observed using agarose gel electrophoresis. The method succesfully determined three SNPs in CYP2E1 locus, the results being consistent with validation using DNA sequencing and restriction fragment length polymorphisms (RFLP).

경쟁적 소매상으로 구성된 공급사슬에서 정보공유의 역효과에 관한 연구 (Analyzing the Dysfunction of Fully Shared Stock Information in a Supply Chain with Competiting Retailers)

  • 서용원
    • 한국경영과학회지
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    • 제37권3호
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    • pp.95-116
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    • 2012
  • The purpose of this paper is to show the effect of information sharing strategy on the supply chain performances. While traditional information sharing models assumed centralized stock information, recent supply chain practices often implement fully shared stock information, where real-time stock information is accessible on retailers. When retailers are competing with each other, this fully shared stock information may incur retailers' strategic order behaviors. Thus, this paper analyzes a simple two-level supply chain consisting of one warehouse and two identical competing retailers where the real time stock information is fully shared. The warehouse uses the traditional echelon stock policy. Under this environment the retailers' reorder decisions are derived using the order risk concept and the retailer competition mechanism is analyzed. Computational results show that the supply chain performace degradation in the fully shared stock information is quite significant, implying the importance of designing information sharing strategies in the supply chain design phase.

검사시스템 설계를 위한 컴퓨터 그래픽에 근거한 대화형 의사결정 지원시스템의 개발 (Development of an Interactive Graphic-Aided Decision Su, pp.rt System for Designing Inspection Plans)

  • 신완선;조원양
    • 품질경영학회지
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    • 제25권4호
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    • pp.168-184
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    • 1997
  • The primary objective of this paper is to develop an interactive computer graphic aided decision su, pp.rt system for the design of inspection plans for complex production systems. This research first develops a computer simulator, called Simulator for Inspection Systems(SIS), in order to represent the production system as a network model. The simulator elicits fundamental information about the system from the decision maker(DM) in an interactive manner. A decision su, pp.rt system is then proposed by combining SIS and Compromise Programming. The system simulates a set of possible inspection strategies implicitly, observes all the important measurements about the inspection system, and employs the compromise programming a, pp.oach to help the DM determine the best compromising allocation of inspection effort considering his/her preferences. Finally, the performance of the proposed system is evaluated using two test cases. The pros and cons of the system are also discussed.

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불명확한 상황에서의 다중속성 경영의사결정을 지원하기 위한 지능적 의사결정지원시스템 (An Intelligent DSS to Assist in Multi-Attributed Managerial Decision Under Fuzziness)

  • 홍일유
    • Asia pacific journal of information systems
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    • 제5권1호
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    • pp.52-85
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    • 1995
  • This paper develops a new approach to dealing with qualitative reasoning processes involved in managerial decisions, drawing upon choice strategies that have been developed within the general framework of multi-criteria decision making. Issues such as choices under uncertainty and preference formulation are addressed. An MCDM DSS intended to assist in high-level management decisions must focus on helping the decision maker to properly define the problem by providing a structure to it and to dynamically evaluate the alternative courses of action. A conceptual architecture is developed and presented to propose a general model for designing decision support systems specifically designed to assist in MCDM in a managerial context. A commercial loan approval judgment case is described to illustrate the real-world situation where decisions are made under fuzziness and usually require a high degree of intuition and subjective judgment. Development of a prototype system intended to partially represent application of the architecture is described.

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쌍대비교에 기반한 승법적 효용함수의 결정 (Determination of Multiplicative Utility Function Based on the Pair-wise Comparisons)

  • 김경모
    • 품질경영학회지
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    • 제33권1호
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    • pp.64-72
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    • 2005
  • The ever increasing demand for enhanced competitiveness of engineered products requires "designing-in-quality" strategies that can effectively and efficiently incorporate concepts of uncertainty and quality into design. Multi-attribute utility function is commonly used to represent the decision-maker's preference on multiple design attributes under conditions of uncertainty and risk. One of the major issues in implementing this approach concerns the generation of appropriate utility function, especially in a complex engineering design environment. Typically, the decision maker's preference is revealed through lottery questions rather than being structured on the deductive reasoning to reflect the nonlinear tradeoffs among the attributes. The use of such intuitive procedures can lead to inexact preference information that may result in inaccuracy and rank reversal problems. This paper presents an alternative procedure based on the pair-wise comparisons between design alternatives towards a consistent preference presentation in assessing multiplicative utility function. The effectiveness of the overall procedures is tested with the aid of an injection-molding process design for a capacitor can and the results are discussed.

Development Method for Teaching-Learning Plan of Computer Education using Concrete Instructional Model Framework

  • Lee, Jaemu
    • 한국컴퓨터정보학회논문지
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    • 제22권10호
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    • pp.129-135
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    • 2017
  • This research is to identify an easy and effective method of teaching-learning plan. The teaching-learning plan is a blue_print applied for designing effective lessons. However, most of the teachers regard it as a difficult and inefficient job. This study proposed the concrete instructional model framework as a tool to develop the teaching-learning plan easily and effectively. The concrete instructional model framework will represent a decomposed instructional strategy applied for each step of the instructional model developed by educational researchers. This method is applied to develop a computer teaching-learning plan. Therefore, the proposed method will expand an easier teaching-learning plan. Furthermore, the proposed method develops a teaching-learning plan with fluent content in detail based on low-level instruction strategies applied in the concrete instruction model framework.

Three Points of the Residential High-Rise: Designing for Social Connectivity

  • Gang, Jeanne
    • 국제초고층학회논문집
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    • 제5권2호
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    • pp.117-125
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    • 2016
  • In this paper we discuss the terms "exo-spatial design," "solar carving," and "bridging" as strategies for creating more socially connective tall buildings. As a typology, high-rise residential buildings have a unique set of challenges to becoming fully activated urban participants in the cities in which they are located. While there is a general recognition and appreciation that tall buildings provide identity to a city, there is often criticism of how they relate to their surroundings. Critics have posited that tall buildings are insular and foreboding by their very nature. This paper explores several design avenues for architects to consider in order to improve the social aspect of tall buildings. As all cities become taller and denser to accommodate growth, the need to design social space in, on, and around tall buildings must be continually examined if we are to have cohesive urban fabric that supports communities.

이동통신시스템의 효율향상을 위한 통합채널운용체계 (Integrated Channel Management Schemes in Cellular Mobile Systems)

  • 장근녕
    • 한국경영과학회지
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    • 제25권1호
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    • pp.85-92
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    • 2000
  • Channel management is critical in designing a cellular mobile system that offers high capacity and high quality. In this paper, an integrated channel management scheme is proposed, which consists of a dynamic channel allocation scheme and an admission control scheme. The dynamic channel allocation scheme allocates a call request the channel which minimizes the impact on its interfering cell, and consists of two types of channel allocation strategies : nominal channel allocation strategy and non-nominal channel allocation strategy. The admission control scheme named the variable cutoff priority scheme reserves some frequency channels for handoff cells in each cell the number of which varies according to the blocking probability of handoff class in that cell. Computationl tests are performed to evaluate the performance of the proposed scheme in terms of overall blocking probability, defined by the weighted value of the blocking probabilities of new calls and handoff calls. The results show that the proposed scheme yields better performance than other compared schemes.

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재가노인의 우울 영향 요인에 관한 연구 (Factors Influencing Depression in Elderly People Living at Home)

  • 문명자
    • 대한간호학회지
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    • 제40권4호
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    • pp.542-550
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    • 2010
  • Purpose: This study was done to identify the factors which influence depression for elderly people who live at home. Methods: The participants were 134 elderly people living at home in M city. Data were collected from April 2 to 30, 2009 and analyzed using SPSS/WIN 12.0 and AMOS 5.0 program. I assumed path coefficients by doing path analysis to understand synthetically causal relationship which influences on depression. Results: Social support, sleep pattern and self esteem had significant direct effects on life satisfaction and accounted for 50% of the total variance in life satisfaction. Physical symptoms, sleep pattern and life satisfaction also had significant direct effects on depression and accounted for 59% of the variance in depression. But social support, self assertiveness and self esteem were not significant for depression. Conclusion: These results provide guidance for designing useful strategies to reduce depression in elderly people living at home.