The variations of the electrical conductivity with temperature and electric field of the ternary alloy of gallium, aluminium and arsenic (Al0.75Ga0.25As) with atomic compositions of 99/1 and 98/2 have been investigated. The electrical conductivity of the alloy increases with temperature according to the relation, ? = ?0 exp (??/kT). The activation energy calculated from this empirical relation ...

Industrial wastewater contains high concentrations of inorganic salts and organic matter. This experiment studied a system for treating containing The setup consists closed-cycle humidification dehumidification filter press. Chemical was used as the treatment solution, performance tested analyzed. effectively reduced chemical oxygen demand (COD), electric conductivity (EC), total nitrogen (TN),...

the variations of the electrical conductivity with temperature and electric field of the ternary alloy of gallium, aluminium and arsenic (al0.75ga0.25as) with atomic compositions of 99/1 and 98/2 have been investigated. the electrical conductivity of the alloy increases with temperature according to the relation, ? = ?0 exp (??/kt). the activation energy calculated from this empirical relation ...

The effect of an external electric field, E, on the electron attachment rate constant, ke, of SFg was studied by a pulsed-conductivity technique in liquid ethane and propane at temperatures ranging from 133—176 K and 156—216 K, respectively. At constant temperature, ke was independent of E at fields less than Ec, the critical field above which the mobility becomes fielddependent, but at E> Ec, ...

Electric conductivity of air is an important characteristic of the electric properties of an atmosphere. Testing instruments to measure electric conductivity ranging from ~10 to 10Sm in natural conditions found in the Earth atmosphere is not an easy task. One possibility is to use stratospheric balloon flights; another (and a simpler one) is to look for terrestrial environments with significant...

Bioelectrochemistry and Bioenergetics 43 (1997) 285-291 Sensitivity of transmembrane voltage induced by applied electric fields-a theoretical analysis Tadej Kotnik, Feda Bobanovic *, Damijan Miklavcic University of Ljubljana, Faculty of Electrical Engineering, Trzaskn 25, 1000 Ljubljana, Slovenia Received 4 December 1996; revised 20 January 1997 The sensitivity of induced transmembrane voltage ...

The value of electric conductivity (EC), California Milk Cell Test (CMCT) and somatic cell count (SCC) as diagnostic tools was investigated in dairy goats. Conductivity colour reading correlated with SCC. Milk samples with conductivity colour red had significantly higher SCC than those with conductivity colours green and orange (P < 0.001). There were moderate positive correlations between CMCT...

Injection-induced electro-convection (EC) of dielectric liquids is a fundamental problem in electrohydrodynamics. However, most previous studies with this type EC assume that the liquid perfectly insulating. By insulating, we mean an ideal zero conductivity, and situation, free charges bulk originate entirely from injection ions. In study, perform numerical analysis certain residual conductivit...

Electropermeabilization (EP) based protocols such as those applied in medicine, food processing or environmental management, are well established and widely used. The applied voltage, as well as tissue electric conductivity, are of utmost importance for assessing final electropermeabilized area and thus EP effectiveness. Experimental results from literature report that, under certain EP protoco...

Electrical currents in resistive materials must be driven by an internal electric field E = J/ς , where J is the current density and ς is the electrical conductivity. The internal electric field must be shaped by an appropriate density σ of surface electrical charge. In practice, the surface charge density is quite small, and is often neglected in discussions of electrical currents. Some except...