نتایج جستجو برای ' Computer '

 Image alignment in the presence of non-rigid distortions is a challenging task. Typically, this involves estimating the parameters of a dense deformation field that warps a distorted image back to its undistorted template. Generative approaches based on parameter optimization such as Lucas-Kanade can get trapped within local minima. On the other hand, discriminative approaches like nearest-neighbor require a large number of training samples that grows exponentially with respect to the dime...

 The Sydney University Stellar Interferometer (SUSI) has two beam combiners, i.e. the Precision Astronomical Visible Observations (PAVO) and the Microarcsecond University of Sydney Companion Astrometry (MUSCA). The primary beam combiner, PAVO, can be operated independently and is typically used to measure properties of binary stars of less than 50 milliarcsec (mas) separation and the angular diameters of single stars. On the other hand, MUSCA was recently installed and must be used in tande...

 Next generation radio telescopes will require orders of magnitude more computing power to provide a view of the universe with greater sensitivity. In the initial stages of the signal processing flow of a radio telescope, signal correlation is one of the largest challenges in terms of handling huge data throughput and intensive computations. We implemented a GPU cluster based software correlator with various data distribution models and give a systematic comparison based on testing results ...

 Temporal-difference learning is one of the most successful and broadly applied solutions to the reinforcement learning problem; it has been used to achieve master-level play in chess, checkers and backgammon. The key idea is to update a value function from episodes of real experience, by bootstrapping from future value estimates, and using value function approximation to generalise between related states. Monte-Carlo tree search is a recent algorithm for high-performance search, which has ...

 The main results of activities accomplished by the Interavtomatika Company for the last five years are presented. The problem of alternating the generations of applied computerized automation systems is considered. The effect the situation in the energy market has on the solutions for fitting power equipment with automation systems is shown. Special attention is paid to the problem concerned with participation of power units in controlling the operating parameters of power systems.

 This paper describes the principal theoretical concepts of the method used for constructing computer models of complex multiloop branched pipeline networks, and this method is based on the theory of graphs and two Kirchhoff’s laws applied to electrical circuits. The models make it possible to calculate velocities, flow rates, and pressures of a fluid medium in any section of pipeline networks, when the latter are considered as single hydraulic systems. On the basis of multivariant ca...

 Typical problems encountered in modernizing control and monitoring systems of the main thermal power equipment used at power stations are considered, and ways of solving them through the use of distributed tools available in the SARGON computerized automation system for control of essential equipment are discussed.

 The first part of this article describes the tools intended to construct distributed automated process control systems for the main thermal power equipment of power stations that are available in the SARGON computerized automation system.

 Stages of work involving preparation of requirements specification, development, and subsequent implementation of a project for constructing a full-scale training simulator of an 800-MW power unit are considered. The training simulator is constructed using the Kosmotronika-Venets computerized automation system developed by PIK Progress (Moscow). The entire personnel training system, the arrangement of drills, and the concept of structuring the entire personnel education system at the Surgu...

 We describe the SPPA-T3000-based automated process control system developed in the course of retrofitting a standard 300-MW power unit into a combined-cycle plant equipped with a gas turbine unit, the heat of exhaust gases from which is recovered in the furnace of a once-through steam boiler modified for the possibility to operate according to the afterburning arrangement. Specific features relating to development of the automated process control system for the power unit subjected to retr...