. " Ohmic losses" . . "http://www.isvav.cz/projectDetail.do?rowId=GA104/08/0428"^^ . . . " Surface roughness" . . . . "1"^^ . " Autocalibration" . "0"^^ . . . "Elektrodifuzn\u00ED \u010Didla t\u0159en\u00ED vyu\u017E\u00EDvaj\u00ED m\u011B\u0159en\u00ED limitn\u00EDch difuzn\u00EDch proud\u016F k detekov\u00E1n\u00ED kinematiky proud\u011Bn\u00ED. Ke zpracov\u00E1n\u00ED prim\u00E1rn\u00EDho proudov\u00E9ho sign\u00E1lu je nutno zn\u00E1t bu\u010F kalibra\u010Dn\u00ED data z m\u011B\u0159en\u00ED na viskometrick\u00E9 cele, nebo \u00FAdaje o geometrii pracovn\u00ED elektrody, koncentraci depolariz\u00E1toru a jeho difuzivitu. Kompromisem je autokalibrace, co\u017E je anal\u00FDza p\u0159echodov\u00E9 odezvy po skokov\u00E9 zm\u011Bn\u011B p\u0159ep\u011Bt\u00ED, poskytuj\u00EDc\u00ED \u00FAdaj o difuzivit\u011B. Op\u00EDr\u00E1 se o Cottrell-Oldhamovu asymptotu neust\u00E1len\u00E9 difuze a je tedy nutn\u00E9 eliminovat po\u010D\u00E1te\u010Dn\u00ED \u00FAsek p\u0159echodov\u00E9 odezvy, zat\u00ED\u017Een\u00FD p\u0159\u00EDdavn\u00FDmi efekty v po\u010D\u00E1te\u010Dn\u00ED f\u00E1zi p\u0159echodu. C\u00EDlem projektu je zdokonalen\u00ED p\u0159echodov\u00E9 anal\u00FDzy zahrnut\u00EDm vlivu :\u00A0 ( i) drsnosti povrchu pracovn\u00ED elektrody, ( ii) ohmick\u00E9ho odporu v okol\u00ED pracovn\u00ED elektrody,\u00A0(iii) kinetiky elektrodov\u00E9 reakce.Tyto vlivy byly ji\u017E d\u0159\u00EDve studov\u00E1ny v jednorozm\u011Brn\u00E9 (rovnodostupn\u00E9) aproximaci. C\u00EDlem p\u0159edkl\u00E1dan\u00E9ho projektu je analyzovat tyto efekty v adekv\u00E1tn\u00EDm prostorov\u00E9m popisu, s vyu\u017Eit\u00EDm Oldhamova konceptu hranov\u00FDch" . "2010-12-31+01:00"^^ . "0"^^ . "Electrodiffusion friction probe; Autocalibration; Surface roughness; Ohmic losses; Electrode kinetic"@en . "Limiting diffusion currents, measured in electrodiffusion probes of friction, serve to detecting flow kinematics. Treatment of the primary current signal needs either direct calibration data from a viscometric cell or an information about probe geometry,depolarizer concentration and diffusivity. As a compromise, the auto-calibration (quantitative analysis of the voltage-step transient for a known electrode geometry) provides the concentration-diffusivity data for a given probe. The analysis is based on the Cottrell-Oldham asymptote of unsteady diffusion. A very-early stage of \u00A0the transient must be skipped in analysis because of secondary effects. The aim of the project is to improve the transient analysis by including the effects (i) of surface roughness, (ii) Ohmic loss, (iii) kinetics of electrode reaction. All these secondary effects of voltage-step transient were already studied in an uniformly accessible approximation. In the present stage, these effects will be studied in\u00A0an adequate"@en . . "2010-04-16+02:00"^^ . "Nov\u011B vyvinut\u00E1 v\u011Bdeck\u00E1 instrumentace  se softwarem pro \u0159\u00EDzen\u00ED ED p\u0159echodov\u00E9ho procesu a sb\u011Br dat  je vyu\u017Eita k velkokapacitn\u00EDmu sb\u011Bru dat. Byla tak z\u00EDsk\u00E1na prim\u00E1rn\u00ED datov\u00E1 struktura (cca 1600 z\u00E1znam\u016F p\u0159echodov\u00FDch proud\u016F v \u0161irok\u00E9m rozsahu polariza\u010Dn\u00EDch nap\u011Bt\u00ED, pro serii kruhov\u00FDch ED \u010Didel 0.2-2 mm, a sadu roztok\u016F s r\u016Fzn\u00FDmi depolariz\u00E1ry a pomocn\u00FDmi elektrolyty)  pro podrobn\u00E9"@cs . "16"^^ . "A new scientific instrumentation was developed for the voltage-step electrodiffusion (ED) transient process, including a software for control and data acquisition. The instrumentation was used to assembling a large collection (1600 in total) of ED transient records, covering (i) a number of solutions with various redox depolarizers and/or auxiliary electrolytes, (ii) a broad range of cathodic/an"@en . . "16"^^ . . "2015-02-09+01:00"^^ . "Vliv povrchov\u00E9 drsnosti, ohmick\u00E9ho odporu a elektrodov\u00E9 kinetiky na autokalibraci elektrodifuzn\u00EDch \u010Didel t\u0159en\u00ED" . "Effect of the surface roughness, ohmic resistance, and electrode kinetics on autocalibration of electrodiffusion friction probes"@en . "Electrodiffusion friction probe" . . . . . . "GA104/08/0428" . "2008-01-01+01:00"^^ . . .