Electrical Engineering Wroclaw University of Technology

Electrical Engineering Wroclaw University of Technology 292 records found  beginprevious159 - 168nextend  jump to record: Search took 0.02 seconds. 
159. Real charges and frozen-in-polarisation in PET electrets / Motyl, E ; Krauze, T [I07/2005/I-040] [ENY-ARTICLE-2008-169]
The new experimental method for discriminating between polarization and real charges in polymeric electrets was suggested. [...]
http://zet10.ipee.pwr.wroc.pl/record/218/files/
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160. Measurement of frozen-in polarization in polycarbonate films / Motyl, E ; Krauze, T [I07/2006/I-018] [ENY-ARTICLE-2008-168]
Space charge accumulated in dielectric materials affect their properties. [...]
http://zet10.ipee.pwr.wroc.pl/record/217/files/
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161. Generation of Short Acoustic Waveforms Using Piezoelements / Motyl, E [I07/2001/I-058] [ENY-ARTICLE-2008-167]
Polymeric (PVDF), ceramic (PZT), crystalline (LiNb03) and composite (PZT/PS) piezoelectric elements were used as actuator, for generation of short standard waves Such kind of acoustic waveforms are useful for space charge distribution measurements in dielectric by pressure propagation method. [...]
http://zet10.ipee.pwr.wroc.pl/record/216/files/
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162. Energy saving materials and technologies, nanomaterials, smart materials / Motyl, E [ENY-REPORT-2008-001]
The progress of technology has given us more precise, energy-saving and less expensive manufacturing technologies that can make an unprecedented diversity of new products. [...]
http://zet10.ipee.pwr.wroc.pl/record/214/files/
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163. Electro-physical properties of PTFE/bronze composites / Motyl, E ; Lisowski, M [RZ I07/02/I-054] [ENY-ARTICLE-2008-166]
Electret state of polymer/metal composite based on polytetrafluornthylene (PTFE) and bronze powder was investigated. [...]
http://zet10.ipee.pwr.wroc.pl/record/213/files/
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164. Distributions of Polarization in PVDF Piezocables / Motyl, E [ENY-ARTICLE-2008-165]
The pulsed (PEA) and step (SEA) electroacoustic methods — applied for the measurements of polarisation distribution along the radius of piezoelectric cables. [...]
http://zet10.ipee.pwr.wroc.pl/record/212/files/
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165. Dielectric Relaxations of Some Pyrrones / Sek, D ; Schab-Balcerzak, E ; Mazurek, B ; Motyl, E ; et al [ENY-ARTICLE-2008-164]
The properties of a series of new synthesized poly(imidazopyrolones) shortly named here as pyrrones, are presented. [...]
http://zet10.ipee.pwr.wroc.pl/record/211/files/
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166. Fuzzy Logic Application to Out-Of-Step Protection of Generators / Rebizant, W ; Feser, K [I08/2001/I-110] [ENY-ARTICLE-2008-163]
Efficient protection scheme against out-of-step (OS) conditions based on fuzzy logic (FL) technique is presented. [...]
http://zet10.ipee.pwr.wroc.pl/record/210/files/
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167. Adaptive Measurement of Power System Currents, Voltages and Impedances in Off-nominal Frequency Conditions / Szafran, J ; Rebizant, W ; Michalik, M [I08/1999/I-047] [ENY-ARTICLE-2008-162]
In the paper the problem of basic power system electric quantities (current, voltage magnitudes, power and impedance) measurement in off-nominal frequency conditions is considered under assumption thal the quantities are calculated from orthogonal components of input current and voltage phasors which are obtained by use of the nonrecursive digital filters. [...]
http://zet10.ipee.pwr.wroc.pl/record/209/files/
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168. Out-of-Step Protection with AI Methods / Rebizant, W ; Feser, K [I08/2001/I-033] [ENY-ARTICLE-2008-161]
In the paper the results of investigations on the application of Artificial Intelligence (AI) methods to the out-ofstep (OS) protection of synchronous machines are presented. [...]
http://zet10.ipee.pwr.wroc.pl/record/208/files/
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