In this paper we present some final results from a research project focused on introducing automatic control to the operation of cupola iron furnaces. The main aim of this research is to improve the operational effici...
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Discrete-time control schemes are often used for realization of positional control strategies for continuous time control problems (Krasovskii and Subbotin, 1974; Osipov, 1971) . However for general systems with delay...
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Discrete-time control schemes are often used for realization of positional control strategies for continuous time control problems (Krasovskii and Subbotin, 1974; Osipov, 1971) . However for general systems with delays (whicb are often called functional differential equations (FDE)) exact solutions in both continuous and discrete schemes can be found in exceptional cases. So, as rule, it is necessary to solve corresponding control problems using suitable numerical algorithms . In surveys (Cryer and Tavernini, 1972; Hall and watt, 1976; Bellen, 1985) different numerical methods for FDE are discussed. In this paper positional implicit Runge-Kutta-like numerical methods of solving general FDE are presented. The elaborated methods are direct analogs of the corresponding numerical methods of ODE case. Also we present new theorem (which generalizes the results of (Kim and Pimenov, 1997; Kim and Pimenov, 1998)) on convergence order. The obtained results are based on distinguishing of finite dimensional and infinite dimensional components in the structure of FDE, on interpolation and extrapolation of the discrete prehistory of the model, on application of constructions of i- smooth analysis (Kim, 1996) . The notion of an approximation order for an optimal strategy in the discrete scheme of realization is introduced. The conditions, which guarantee required approximation order of the optimal strategy, are presented.
An iterative approach is developed for reconstructing electrical parameters of stratified lossy media using time-domain reflection and/or transmission data. The finite-difference time-domain (FDTD) method is used. Num...
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Active filters have been widely used for correcting power factor deterioration caused by waveform distortions of the current due to the capacitor input rectifier. To realize both the voltage regulation and the power f...
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A reconstruction algorithm for determining the complex refractive index of the object from measurements of the intensity of the total field is presented. The algorithm is based on an optimization procedure. The simula...
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Research in human/computer interaction has mainly focused on natural language, text, speech and vision primarily in isolation. Recently there have been a number of research projects that have concentrated on the integ...
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Research in human/computer interaction has mainly focused on natural language, text, speech and vision primarily in isolation. Recently there have been a number of research projects that have concentrated on the integration of such modalities using intelligent reasoners. The rationale is that many inherent ambiguities in single modes of communication can be resolved if extra information is available. This paper describes an intelligent multi-modal system called the Smart Work Manager. The main characteristics of the Smart Work Manager are that it can process speech, text, face images, gaze information and simulated gestures rising the mouse as input modalities, and its output is in the form of speech, text or graphics. The main components of the system are the reasoner, a speech system, a vision system, an integration platform and the application interface. The overall architecture of the system will be described together with the integration platform and the components of the system which include a non-intrusive neural network based gaze-tracking system. The paper concludes with a discussion on the applicability of such systems to intelligent human/computer interaction and lessons learnt in terms of reliability and efficiency.
This paper describes the approach to information sharing being adopted by Synapses, a pan-European project funded under the EU Health Telematics Programme. The emphasis in Synapses is on developing standards to enable...
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ISBN:
(纸本)0818681268
This paper describes the approach to information sharing being adopted by Synapses, a pan-European project funded under the EU Health Telematics Programme. The emphasis in Synapses is on developing standards to enable sharing, in whole or in part, of electronic healthcare records between distributed healthcare providers and institutions. The current technological solutions available for data sharing, including federated database systems, gateways, data warehousing, messaging and the web are insufficient on their own to meet the needs of Synapses. Thus in Synapses several different, bur complementary technologies are merged in an open, distributed object-oriented environment. Furthermore, in order to safeguard the legal, ethical and clinical integrity of the record, it is essential not only to preserve the meaning of the data being transferred, but also its context and structure. Synapses solves this problem by defining a standard architecture for the federated electronic healthcare record.
An iterative approach is developed for reconstructing electrical parameters of stratified lossy media using time-domain reflection and/or transmission data. The finite-difference time-domain (FDTD) method is used. Num...
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An iterative approach is developed for reconstructing electrical parameters of stratified lossy media using time-domain reflection and/or transmission data. The finite-difference time-domain (FDTD) method is used. Numerical simulations are performed to reconstruct the images of lossy dielectric slabs with high-contrast permittivity. (C) 1997 John Wiley & Sons, Inc.
A reconstruction algorithm for determining the complex refractive index of the object from measurements of the intensity of the total field is presented. The algorithm is based on an optimization procedure. The simula...
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A reconstruction algorithm for determining the complex refractive index of the object from measurements of the intensity of the total field is presented. The algorithm is based on an optimization procedure. The simulated results show that the algorithm is very effective in reconstructing refractive index distributions to whch the first-order Born approximation cannot be applied. (C) 1997 John Wiley & Sons, Inc.
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