Electrical conductivity recovery

Alig I, Skipa T, Engel M, Bellinger D, Pegel S and Potschke P (2007) Electrical conductivity recovery in carbon nanotube-polymer composites after transient shear, Phys Status Solidi B 244 4223-4226. 

Healing functionalities as evaluated by several techniques, (a) toughness recovery (Caruso, 2008) (b) impact strength recovery (Yao, 2011) (c) fatigue resistance recovery (Yuan, 2011) (d) corrosion protection recovery (Garcia, 2011) (e) electrical conductivity recovery (Odom, 2012) and (f) hydrophobicity recovery (Liu, 2012). 

HRP/IL phase. The electrical conductivity of the PANI films prepared by solvent casting from the aqueous solutions showed a relatively high and similar value even after the fifth run (Fig. 12), which demonstrates the validity of our approach and the ease of recyclability and reuse of the enzyme inside the IL. For the PEDOT, the process of recovery and reuse was successfully repeated up to ten times using the same HRP/EDOT catalytic phase (Fig. 13), further confirming the success of the synthetic approach and the ease of recyclability and reuse of the enzyme inside the EDOT monomer phase. 

Electrical conductivity -of carbon fibers [CARBON AND GRAPHITE FIBERS] (Vol 5) -role m ore sorting [MINERALS RECOVERY AND PROCESSING] (Vol 16)... 

ED appears to be an inefficient method to recover free citric acid because of its low electric conductivity (Novalic et al., 1995). As it is converted into the monovalent (at pH ca. 3), divalent (at pH ca. 5), or trivalent (at pH about 7) citrate anion, there is a significant increase in the electric conductivity (%), the latter increasing from 0.95 to 2.18 and to 3.9 S/m, respectively, in the case of an aqueous solution containing 50 kg/m3 of citric acid equivalent (Moresi and Sappino, 1998). By increasing the pH from 3 to 7, e reduced about eight times, the solute flux (JB) practically doubled, while the overall water transport (/w) increased 3-4 times. The latter partly counterbalanced the greater effectiveness of the electrodialytic concentration of citric acid at pH 7 with respect to that at pH 3. Table XV presents a summary of the effect of current density ( j) on the main performance indicators of the electrodialytic recovery of the monovalent, divalent, or trivalent ionic fractions of citric acid (Moresi and Sappino, 1998). All the mean values or empirical correlations of the earlier indicators were useful to evaluate the economic feasibility of this separation technique (Moresi and Sappino, 2000). 

Miscellaneous bromine uses are in catalysts, fluxes, precious metal recovery, hair care products, food additives, flotation agents in ore treatment, solvents, refrigerants, quartz-halide light bulbs, some lasers, some photovoltaic batteries, and some electrically conductive polymers. 

The response and recovery time of the sensor are < 30 s. Mixed films containing BDN and stearyl alcohol are electrically conducting and derived chemiresistor sensors were fabricated by depositing layers of this material onto interdigital electrodes. When exposed to NH3 or ppb levels of hydrazine,... 

The direct measurement of the various important parameters of foam films (thickness, capillary pressure, contact angles, etc.) makes it possible to derive information about the thermodynamic and kinetic properties of films (disjoining pressure isotherms, potential of the diffuse electric layer, molecular characteristics of foam bilayer, such as binding energy of molecules, linear tension, etc.). Along with it certain techniques employed to reveal foam film structure, being of particular importance for black foam films, are also considered here. These are FT-IR Spectroscopy, Fluorescence Recovery after Photobleaching (FRAP), X-ray reflectivity, measurement of the lateral electrical conductivity, measurement of foam film permeability, etc. 

Bismuth is a rather rare element in the earth s crust, but its oxides and sulfides appear at sufficient concentrations as impurities in lead and copper ores to make its recovery from these sources practical. Annual production of bismuth amounts to several million kilograms worldwide. Although elemental bismuth is a metal, its electrical conductivity is quite poor and it is relatively brittle. The major uses of bismuth arise from its low melting point (271.3°C) and the even lower melting points of its alloys, which range down to 47°C. These alloys are used as temperature sensors in fire detectors and automatic sprinkler systems because, in case of... 

Electrolytic purification of smelted copper removes contaminants which adversely affect electrical conductivity, malleability, and other properties. It also permits recovery of the precious metal content of the fire-refined product. 

Carbon dioxide analysers, based on heat capacity, electrical conductivity or partial pressure measurements, but especially on IR light absorption, are therefore used at various points in industrial processes. Carbon monoxide and dioxide are the species most commonly analysed for by the last of the above-mentioned detection techniques, which is also employed in a variety of processes [6], namely (a) control of the hydrogenation of plant oils in order to avoid production of unwanted trans isomers (b) measurement of sugars and CO2 In soft drinks (c) measurement of moisture (d) determination of CO2 In Industrial environments (e) determination of isocyanates In the production of polyurethane (f) determination of methane In argon from nuclear plants (g) control of the efficiency of solvent clean-up and recovery systems. 

As both the phases of ATPSs are electrically conductive, application of electric fields in these systems gives rise to electrokinetic mass transfer of charged species. Thus ATPS was shown as a medium for electrophoretic separation with two aqueous phase interfaces providing the stability against convection and facilitating product recovery [126]. Proteins have been directed into either the... 

The changes in mechanical properties caused by absorption are more or less reversible on drying out after short periods of contact with the environment, but more prolonged immersion tends to make full recovery of initial properties much more difficult. The mechanical property changes are accompanied by corresponding alterations to electrical conductivity, dielectric loss and other physical properties. 

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