Xem 1-10 trên 10 kết quả Conductivity problem i
  • We show that the Dirichlet to Neumann map for the equation ∇·σ∇u = 0 in a two-dimensional domain uniquely determines the bounded measurable conductivity σ. This gives a positive answer to a question of A. P. Calder´n o from 1980. Earlier the result has been shown only for conductivities that are sufficiently smooth. In higher dimensions the problem remains open. Contents Introduction and outline of the method

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  • Worked examples are a necessary element to any textbook in the sciences, because they reinforce the theory (i.e. the principles, concepts and methods). Once the theory has been understood, well chosen examples can be used, with modification, as a template to solve more complex, or similar problems. This work book contains examples and full solutions to go with the text of our e-book (Heat Transfer, by Long and Sayma). The subject matter corresponds to the five chapters of our book: Introduction to Heat Transfer, Conduction, Convection, Heat Exchangers and Radiation....

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  • They give sodium tail currents with relative longterm constants (Wright, et al., 1988). At lower doses more suble repetitive behavior is seen (Brodie and Aldridge, 1982). As with type I pyrethroids, the primary action is on the central nervous system, since symptoms correlate well with brain concentrations (Rickard and Brodie, 1985). As might be expected, both classes of parathyroid produce large increases in brain glucose utilization (Cremer et al. 1983).

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  • The basic question of the longer work that volume one introduces is a deceptively simple one: What sorts of conduct may the state rightly make criminal? Philosophers have attempted to answer this question by proposing what I call "liberty-limiting principles" (or equivalently, "coercion-legitimizing principles") which state that a given type of consideration is always a morally relevant reason in support of penal legislation even if other reasons may in the circumstances outweigh it.

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  • This thesis offers three novel contributions to this area of research. After grounding the discussion in different notions of social interaction, i articulate a new theory of how context operates in the digital realm, focusing on how the underlying architectural differences require a new set of considerations. In particular, i tackle the problems that occur when situational contextual information is collapsed and how users reclaim this.

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  • Worked examples are a necessary element to any textbook in the sciences, because they reinforce the theory (i.e. the principles, concepts and methods). Once the theory has been understood, well chosen examples can be used, with modification, as a template to solve more complex, or similar problems. This work book contains examples and full solutions to go with the text of our e-book (Heat Transfer, by Long and Sayma). The subject matter corresponds to the five chapters of our book: Introduction to Heat Transfer, Conduction, Convection, Heat Exchangers and Radiation.

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  • In this chapter, the characteristics of diodes are presented. Diode circuit analysis techniques will be discussed. Problems involving diode circuits are solved using MATLAB. 9.1 DIODE CHARACTERISTICS Diode is a two-terminal device. The electronic symbol of a diode is shown in Figure 9.1(a). Ideally, the diode conducts current in one direction. The current versus voltage characteristics of an ideal diode are shown in Figure 9.1(b). anode i cathode (a) i v (b) Figure 9.

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  • CHAPTER NINE DIODES In this chapter, the characteristics of diodes are presented. Diode circuit analysis techniques will be discussed. Problems involving diode circuits are solved using MATLAB. 9.1 DIODE CHARACTERISTICS Diode is a two-terminal device. The electronic symbol of a diode is shown in Figure 9.1(a). Ideally, the diode conducts current in one direction. The current versus voltage characteristics of an ideal diode are shown in Figure 9.1(b). anode i cathode (a) i v (b) Figure 9.

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  • This book, based on intensive research I have conducted since the late 1970s, is my attempt to cover in one monograph the modern theory of surface generation with a focus on kinematic geometry of surfacemachining on amultiaxis numerical control (NC) machine. Although the orientation of this book is toward computer-aided design (CAD) and computer-aidedmanufacturing (CAM), it is also useful for solving problems that relate to the generation of surfaces on machine tools of conventional design (for example, gear generators, and so forth)....

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  • This article addresses some issues involved in using the term structure to conduct monetary policy. I begin by discussing the long bond rate as an indicator of inflation expectations. Second, I comment on the role that bond rates have played in recent U.S. monetary history. Third, I explain how infor- mation in the yield curve can be used to overcome what I call the “policy in the pipeline problem.” Fourth, I review recent empirical evidence supporting the two theoretical views underlying our understanding of the term structure.

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