The design and operation of a CW CO 2 laser based on the whispering-gallery principle is reported. The optical cavity consists of a portion of the equatorial region of a torus terminated by two flat mirrors. In agreem...
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The design and operation of a CW CO 2 laser based on the whispering-gallery principle is reported. The optical cavity consists of a portion of the equatorial region of a torus terminated by two flat mirrors. In agreement with theoretical expectations, the output beam is found to be TE polarized, and to consist of low-order Airy-Hermite-Gaussian modes.
This paper presents a double-side-exposure scheme based on computer-numerical-controlled (CNC) UVLED lithography for fine 3-D microfabrication. The CNC UV-LED lithography manipulates the exposure angle of the UV light...
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This paper addresses the key issue of providing flexible multimedia presentation with user participation and suggests synchronization models that can specify the user participation during the presentation. We study mo...
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This past spring, 35 girls spent a Saturday afternoon in a darkened hotel room monitoring brain waves. Part of a larger IEEE meeting, the girls, all from Milwaukee, Wisconsin's Homestead High School Girls Explorin...
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Light adaptive algorithms/architectures are proposed for regularization vision chips. The adaptation mechanisms allow the regularization parameters to change in an adaptive manner in accordance with the light intensit...
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We consider a duopolistic power market in which firms bid their offer functions while abiding by capacity constraints. Minimal cost allocation decisions and marginal cost prices are determined through the solution of ...
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ISBN:
(纸本)9781467320665
We consider a duopolistic power market in which firms bid their offer functions while abiding by capacity constraints. Minimal cost allocation decisions and marginal cost prices are determined through the solution of two optimization problems, the first a mixed-integer linear program (the unit commitment problem) and the second a related linear program (the economic dispatch problem) that has constraints derived from the solution of the commitmemt problem. Traditional marginal-cost pricing mechanisms have relied on using the dual variables associated with the supply-demand constraints from the dispatch problem. Unfortunately, such mechanisms fail to cover the cost of start-up and energy costs faced by dispatched generators. In existing markets, one attempt at a remedy is by providing every dispatched generator with an ex-post out of market settlement called a make-whole uplift. Given the presence of such an uplift mechanism, this paper seeks to characterize the nature of equilibria in duopolistic settings. The two main conclusions of our analysis are: 1) Pure Nash equilibria are identified when one firm can supply the entire demand;2) Otherwise, it is shown that mixed-strategy Nash equilibria exist, and these equilibria can be characterized by two coupled differential equations. These results provide a framework for further analysis of electricity markets, and in particular the true value of make-whole uplift payments in a strategic setting.
Nowadays, convolutional neural network (CNN) plays a major role in the embedded computing environment. Ability to enhance the CNN implementation and performance for embedded devices is an urgent demand. Compressing th...
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We consider the behaviour of digital control systems from the point of view of modeling intersample behavior, and the effects of quantizations and finite wordlength computations. Our purpose in this paper is to invest...
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ISBN:
(纸本)0780335910
We consider the behaviour of digital control systems from the point of view of modeling intersample behavior, and the effects of quantizations and finite wordlength computations. Our purpose in this paper is to investigate the dependence of these two effects on the sampling rate. We show that there is essentialy a tradeoff between guarding against these two effects, in that fast sampling will generaly improve intersample behavior, while it makes the system more sensitive to finite arithmetic effects. We develop quantitative measures for performance under these two combined effects using input-output norms. We address the problem of intersample behavior using the by now well known lifting technique, while we investigate roundoff error effects by modeling them as feedback with certain types of switching nonlinearities. We present examples that exhibit these tradeoffs.
Noise due to the sensor and the electronics of a camera is an undesirable issue in any machine vision application. Such noise tends to corrupt images and to obstruct any further analysis. An algorithm to detect and ca...
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