The extracellular epicardial potential fields produced by simple depolarization waves in the in situ canine left ventricular myocardium were analyzed. A mathematical model that included tissue anisotrophy was developed to explain the observed fields. Values of intracellular (i), extracellular (o), longitudinal (l), and transverse (t) resistivity which gave the best fit between the model and exp...

Development of lift-off technique AlGaAs/GaAs heterostructures, grown by the MOCVD technique, to GaAs carrier-substrate using silver-containing paste or Au-In compound has been carried out. Forming process frontal ohmic contact n-type conductivity based on systems Au(Ge)/Ni/Au and Pd/Ge/Au with specific resistivity 2-5·10-6 Ом·см2 investigated. Analyzed was influence heterostructure forming IR ...

We report on an indium-free and cost-effective Cu2O/Cu/Cu2O multilayer mesh electrode grown by room temperature roll-to-roll sputtering as a viable alternative to ITO electrodes for the cost-effective production of large-area flexible touch screen panels (TSPs). By using a low resistivity metallic Cu interlayer and a patterned mesh structure, we obtained Cu2O/Cu/Cu2O multilayer mesh electrodes ...

Electrical transport and specific heat properties of Nd1−x Pbx MnO3 single crystals for 0.15 x 0.5 have been studied in the low temperature regime. The resistivity in the ferromagnetic insulating (FMI) phase for x 0.3 has an activated character. The dependence of the activation gap on doping x has been determined and the critical concentration for the zero-temperature metal–insulator transition...

among all the geophysical techniques, the magnetotelluric method has improved considerably in recent years and is widely being used in hydrocarbon exploration especially in regions where reflection seismic has difficulties. areas which are covered with high velocity rocks in the near surface are most popular cases. a huge high resolution magnetotelluric investigation was conducted in the sehqan...

Vertical Electrical Soundings (VES) afford fast and economical measurements used in geophysical exploration. VES was for groundwater exploration at the permanent site of Waziri Umaru Federal Polytechnic, Birnin Kebbi. Eighteen (18) Sounding (Schlumberger array, maximum AB/2 distance 100 m) were performed, data acquired using ABEM terrameter (SAS 300c), to determine geoelectric units subsurface ...

Although nanoscience and nanotechnology have been developing for approximately two decades and have achieved numerous breakthroughs, the experimental results from nanomaterials with a higher noise level and poorer repeatability than those from bulk materials still remain as a practical issue, and challenge many techniques of quantification of nanomaterials. This work proposes a physical-statist...