[PDF] Top 20 Investigation of the electrical properties of SnO2 varistor system using impedance spectroscopy

... Considering the differences in the activation energies presented in Tables III and IV, the main defects for the SCN system could be O 2 8 and O 8 , resulting in activation energies ... See full document

... verify the influence of rare earth oxide such as lanthanum (La 2 O 3 ) and neodymium (Nd 2 O 3 ) doping SnO 2 + ...5 system. The analysis focus on microstructural influence on ... See full document

... step, the system was characterized by using different electrical, structural and microstructural techniques (current-voltage, impedance spectroscopy and electronic force image, ... See full document

... Among the conducting polymers, poly(3-alkylthiophene) (P3ATs) exhibits good physical and chemical stability, and since they are p-conjugated systems, they can undergo oxidation when electrochemically neutral, ... See full document

... in the deoxyribonucleic acid (DNA) chain. Studies have shown that the amount of breaks increases with exposure to ultraviolet (UV) ...capable of also inducing strand breaks on DNA. These ... See full document

... with the amount of effort and hours of work that people who helped me ...was the person I always wanted to work with and I was really happy with his acceptance to be my ...at the same ... See full document

... have the following advantages: (1) more specific surface area obtained for the binding of larger amounts of biomolecules; (2) lower mass transfer resistance; (3) selective separation of ... See full document

... Sendo assim, o mo- delo de eletrodos porosos apresenta-se como uma forma bastante promissora no tratamento das respostas em freqüência dos ADEs, possibilitando a análise de uma grande fa[r] ... See full document

... next-generation of observing facilities will be paramount to build up our understanding of exoplanets as a whole and their atmospheres in ...in the detection of large quantities of ... See full document

... and properties. Using MeV ions it has become possible to make structures of interest such as buried conducting layers [1] and very large scale integration (VLSI) deep ...wells. The damage ... See full document

... cutting the arteries lengthwise, measuring points were marked with adventitial crosses of ...minimize the influence of different vessel thicknesses on the electric impedance ... See full document

... diagnosis of the defects and their severity. For this reason, the first step of a monitoring action is to ask what the potential defects of the monitored machine ...are. ... See full document

... statement: The objective of this study was to study the Indirect Resistance Electrical Furnaces (IREF) based on analytical and experimental ...analyses. The analytical analysis focused ... See full document

... with the application of the automated system-cognitive analysis (ASC-analysis) and its software tools - intel- lectual systems "Eidos" for the detection and investiga- tion ... See full document

... from the picture. But actually fibers, which were collected on the electrodes, were not fractured as we have performed at little lower rate of ...collection. The fibers are of several ... See full document

... • 013/2011 – “Arranjos Técnicos e Comerciais para Inserção da Geração Solar Fotovoltaica na Matriz Energética Brasileira” • 014/2012 – “Arranjos Técnicos e Comerciais para Inserção da.[r] ... See full document

... represents the way cell membranes shift the timing of oscillations in voltage relative to those of an applied alternating ...measure of EIM since it is considered to be less affected by ... See full document

... application of the AgSnO 2 contact materials is limited by their rather poor over- temperature behavior due to high contact resistance caused by the coalescence of SnO 2 particles in surface ... See full document

... method. The results showed that the dependence of the dielectric constant upon the frequency does not reveal any relaxor ...phase. The temperature dependency of Raman ... See full document

... spite the greater representativeness of this part of the mecha- ...on the film thickness is probably associated to the influence of the interface film/ substrate: ... See full document