نتایج جستجو برای: electrode system and dipole
تعداد نتایج: 17136675 فیلتر نتایج به سال:
30 31 In this pilot study we evaluated electroencephalographic (EEG) mean frequency changes induced 32 by prefrontal transcranial direct current stimulation (tDCS) and investigated whether they 33 depended on tDCS electrode montage. Eight healthy volunteers underwent tDCS for 15 minutes 34 during EEG recording. They completed six tDCS sessions, one week apart, testing left and right 35 direct c...
In this pilot study we evaluated electroencephalographic (EEG) mean frequency changes induced by prefrontal transcranial direct current stimulation (tDCS) and investigated whether they depended on tDCS electrode montage. Eight healthy volunteers underwent tDCS for 15 min during EEG recording. They completed six tDCS sessions, 1 wk apart, testing left and right direct current (DC) dipole directi...
on this project we try to calculated power of hydrogen on dycarbonil compound in different ways ; the first way is shoster way , for sain power of hydrogen notice the different power between central conforms on it and main conform that’s didn’t have hydrogen joint . or in other way different of energy between open and close form. second way, is average way? this is for way that studied conf...
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
Saltwater intrusion into the coastal aquifer, a phenomenon brought by the flow of seawater into freshwater aquifers originally caused by groundwater extraction near the coast, has long been recognised as a major concern around the world. In this study, we employed geophysical and geochemical techniques to map and provide evidences that the coastal aquifers in the study area have been intruded b...
A three dimensional ion optical code IBSimu is being developed at the University of Jyväskylä. So far the plasma modelling of the code has been restricted to positive ion extraction systems, but now a negative ion plasma extraction model has been added. The plasma model has been successfully validated with simulations of the Spallation Neutron Source (SNS) ion source extraction both in cylindri...
the community dynamics of aquatic coleoptera(insecta)in one of the spring-stream habitats of bammo national park in fars province called cheshmeh-ye-ghanbari is studied as a pilot project and model for acquaintance with and furthering the biodiversity studies on fauna of iran. sixteen species-populations out of nineteen of this community were already identified for their taxonomy and for thei...
peace and national security protection and ironic solving of international conflicts become the preliminary foundation of the united nations charter and had been considered as the main responsibilities of the security council, after world war ii and the establishment of united nations organization. therefore, the security council enables to analyze every kind of conflicts and challenges which ...
The electrical resistivity method has been successfully used to detect shallow buried foundations, almost, by using 2D electrode arrays. Basic geometry foundations (e.g., walls) have investigated, although, more complicated foundation designs stepped footing, pile group with a cap) are widely in the construction industry. Investigation of these types, and engaging 3D surveys, therefore, require...
Chronoamperometric curves for the oxidation of a ferrocenyl derivative via potential step, calculated using Cottrell equation, showed less diffusion-controlled currents on platinum wire electrode. This lower deviation cannot be explained Butler–Volmer heterogeneous kinetics, but was ascribed to negatively capacitive current associated with redox reaction. The in fully oxidized electrical corres...
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