نتایج جستجو برای: space resistivity is highly non
تعداد نتایج: 8007954 فیلتر نتایج به سال:
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
the aim of the present research is to study scientometric indicators (the number of articles and citations, the mean citation per paper, h-index, y-index, and the national and international collaboration) of medical and non-medical highly cited papers of iran in the essential science indicators (esi). the research population is all highly cited articles of iran in esi during 2005 to 2015. data ...
P-channel, backside illuminated silicon CCDs were developed and fabricated on high-resistivity n-type silicon. Devices have been exposed up to 1× 1011 protons/cm2 at 12 MeV. The charge transfer efficiency and dark curent were measured as a function of radiation dose. These CCDs were found to be significantly more radiation tolerant than conventional n-channel devices. This could prove to be a m...
The synthesis and characterization of the vanadium-based kagome metal TbV${_6}$Sn${_6}$ is presented. X-ray measurements confirm this material forms with same crystal structure type as recently investigated metals GdV$_6$Sn$_6$ YV$_6$Sn$_6$, space group symmetry P6/mmm. A signature a phase transition at 4.1K observed in heat capacity, resistivity, magnetic susceptibility measurements, both resi...
It is shown that the canonical flux quantization, which is described by the usual commutator postulate or by its equivalent uncertainty relation on the related phase space, can result in the quantization of Hall-measures. Further it is shown that the polarization of this phase space, which is necessary for its quantization, results in the vanishing of longitudinal components of resistivity and ...
fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...
the main goal of this paper is the study of the generalized hyers-ulam stability of the following functionalequation f (2x y) f (2x y) (n 1)(n 2)(n 3) f ( y) 2n2 f (x y) f (x y) 6 f (x) where n 1,2,3,4 , in non–archimedean spaces, by using direct and fixed point methods.
today the image of a permanent skeletal space of cities affected by some forces or mechanisms is put in time with social-economic development and while imposes a new face and perspective to physical anatomy of cities, and prepares field to changes in content and social- economic structures of cities too. simultaneously with quitting villages in order to settle in cities by villagers, the phen...
The optimal design of production in fractured geothermal reservoirs requires knowledge of the resource’s connectivity, therefore making fracture characterization highly important. This study aims to develop methodologies to use resistivity measurements to infer fracture properties in geothermal fields. The resistivity distribution in the field can be estimated by measuring potential differences...
We have evaluated the tunneling contact resistivity based on numerical calculation of tunneling current density across an AlGaN barrier layer in non-polar AlGaN/GaN heterostructures. In order to reduce the tunneling contact resistivity, we have introduced an n-AlXGa1−XN layer between an n-GaN cap layer and an i-AlGaN barrier layer. The tunneling contact resistivity has been optimized by varying...
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