Сучасні проблеми радіоелектроніки, телекомунікацій, комп'ютерної інженерії
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Item Use of wireless technologies for the requirements of emergency medical procedures(Видавництво Львівської політехніки, 2010) Tymchenko, Olexander; Kolodij, RomanThe methods of construction and realization of networks are examined for the necessities of telemedicine, in particular for mobile monitoring of health state of patients. The ways of organization of video connection systems with mobile systems using are shown.Item Analysis of the information contained in amplitudes of the reflected signals received by space diversity radars(Видавництво Львівської політехніки, 2010) Vasiliev, DmitriyIn this paper crosscorrelation treatment of the narrow-band signals of two different frequencies of one band of lengths of events reflected from the radar target is examined. Thus the mathematical model of reflecting characteristics of radar target is used.Item Comprehensive analysis of E-learning systems compatibility and solutions(Видавництво Львівської політехніки, 2010) Makowski, Tomasz; Sakowicz, Bartosz; Wojtera, MichałThe aim of the research presented in this paper was to analyze different e-learning solutions and compare them in the field of functionality and standards compatibility. As most popular applications Moodle, WBT and EXE programs have been chosen. The possibility of export/import courses between them has been discussed.Item Modeling of heuristic problem solving in decision-making systems(Видавництво Львівської політехніки, 2010) Glinenko, LarisaMathematical models of heuristic problems are developed and an algorithm of an optimal system transformation for problem elimination is proposed.Item Tolerance design and electronics elements’ selection under external influences(Видавництво Львівської політехніки, 2010) Shilo, Galina; Kovalenko, Daria; Gaponenko, MykolaPeculiarities of tolerance region forming are being considered taking into account external influences under normal distribution law. Algorithms of tolerance design under given parameters and external factors have been submitted. Relations for elements selection providing costs minimization were taken. Element selection methods are suggested subject to specialties of electronics elements.Item Photoluminescent diagnostics of destructive diseases of the abdominal cavity organs(Видавництво Львівської політехніки, 2010) Besaha, Roman; Burkovets, Dmitry; Hrynchuk, FedirDiagnostics of inflammatory-destructive diseases of the abdominal cavity organs is performed by the determined spectra of luminescence of venous blood plasma. The influence of devascularization of intestines on the intensity of their walls luminescence has been studied also. The intensity of intestine walls luminescence changed with the increase of the time of devascularization.Item Design of process of forming of time-tables(Видавництво Львівської політехніки, 2010) Pasichnik, Roman; Vovkodav, AleksandrActuality of design of process of forming of timetables is Described. The existent systems and algorithms are analysed that used for forming of curricula of lessons, oriented to the increase of the productivity of process of studies.Item Near-field resonant sensors for scanning microwave microscopy(Видавництво Львівської політехніки, 2010) Gordienko, Yury; Larkin, SergueiThe results of numerical investigation into the most widely used versions of near-field resonant sensors for the sмм are generalized and the main concepts of their theory are formed in the report.Item acoustic metamaterials – new materials for acoustic electronics(Видавництво Львівської політехніки, 2010) Samoylovich, Mikhail; Belyanin, Alexey; Tcherniega, NikolayExperimental results of the investigations of the photon-phonon interaction in orderly packed silica dioxide (opal matrices) and nanocomposites on their base are presented.Item Information dynamic model of behavior entities in distributed computer systems, remote data access(Видавництво Львівської політехніки, 2010) Nykolaychuk, L. M.; Plenyuk, M. D.The peculiarity of modern information technology podannyai knowledge of jurisprudence.Item Raster forming block in scanning television microscope(Видавництво Львівської політехніки, 2010) Vasylyuk, Volodymyr; Goy, Vitaliy; Shkliarskyi, VolodymyrThe ways of construction of raster forming block, which provides television and little-frame modes, are considered. The analog and digital methods of formation of signals are analyzed. Ways of change of amplitude and displacement of signals of a raster are shown with the purpose of maintenance of scaling of the image of researched microobject.Item Development of educational manual “Construction and manufacture technology of information registration equipment”(Видавництво Львівської політехніки, 2010) Travnikov, Eugeniy; Vlasiuk, Anna; Spivak, Viktor; Pilinskiy, VolodymyrEducational manual development materials are given. This manual is devoted to study of normative discipline by students of “Telecommunications” and “Acoustic technique” chairs.Item Frame based approach to construction of intelligent system for student knowledge control(Видавництво Львівської політехніки, 2010) Melnyk, Vitaliy; Vovk, Roman; Demchyna, MykolaThe frame based approach to construction and preserving of knowledge structures in the form of objects, domains and rules are given and its applications to the student’s knowledge control problem are proposed.Item Content and modern trends of reliability aspect in radioelectronic designing(Видавництво Львівської політехніки, 2010) Bobalo, Yuriy; Mandziy, BohdanThe article deals with modern development trends and the content of the problems concerning reliability aspect of radioelectronic device designing at the different hierarchic designing levels.Item Edge detection based on wavelets constructed by transforms of the graph of power function(Видавництво Львівської політехніки, 2010) Polyakova, Marina; Krylov, Victor; Volkova, NatalyaIn this paper the method of construction of improved wavelets by transform of graph of power function is developed for the edge detection.Item Adaptive lattice filters for band-inverse covariance matrix approximations(Видавництво Львівської політехніки, 2010) Lekhovytskiy, D.; Ryabykha, V.; Zarytskiy, V.; Zhuga, G.; Rachkov, D.; Semenyaka, A.Item Design of concave holographic grating for WDM multi/demultiplexer for PMMA-based POF systems(Видавництво Львівської політехніки, 2010) Bartkiv, LyubomyrIn this paper the results of calculations and optimization of a concave holographic grating for use in multi/demultiplexer for wavelength-division-multiplexing in data transmission systems with polymer optical fibers made of polymethylmethacrylate are given.Item Content management system for Web portal(Видавництво Львівської політехніки, 2010) Nakwaski, Maciej; Zabierowski, WojciechThis paper provides basic information on content management systems, and application developed by the authors.Item Microwave scanning tomography local unit defects(Видавництво Львівської політехніки, 2010) Melnyk, S. I.; Slipchenko, M. I.This article analyzes the possibility of creating a microwave scanning tomography on the basis of existing microwave microscopes. An algorithm for the reconstruction of the size, depth and electrical parameters of the local unit heterogeneity on the basis of scanning at two at two different distances between the sensor and object.Item Rotation magnetization reversal fluxgate excited by the voltage source(Видавництво Львівської політехніки, 2010) Pavlyk, L. P.; Ubizskii, S. B.Fluxgate with rotation magnetization reversal of the isotropic disk core under the harmonic voltage source excitation has been analysed and the model of the response on the measured field components has been developed. When the excitation frequency is a half of the excitation circuit resonance frequency, the fluxgate sensitivity increases quadratically with the frequency and can exceed the sensitivity of the current driven fluxgate.