Conductance conductances

Conductivity. Conductivity is an electrical property of excitable tissue which ensures that if one area of a membrane is excited to full activity, that area excites adjacent areas. Conduction of an impulse varies direcdy with the rate of development of phase 0 and the ampHtude of the action potential. Phase 0 is faster, and ampHtude of the action potential is greater, the more negative the transmembrane potential at the time of initiation of the impulse. Conduction velocity is faster when phase 0 is fast. 

Tafel slope (Napieran loop) transfer coefficient diffusion layer thickness dielectric constant, relative electric field constant = 8.85 x 10 F cm overvoltage, polarization ohmic voltage drop, resistance polarization specific conductance, conductivity electrochemical potential of material X,... 

Conductivity Expressed as micromhos, specific conductance Conductivity is the result of ionizable solids in solution high conductivity can increase the corrosive characteristics of a water Any process which decreases dissolved solids content will decrease conductivity examples are demineralization, lime softening... 

Leit-vermfigen, n. conducting power, (Elec.) conductance conductivity, -wert, m. (E/ c.) conductance, admittance, or susceptance. -zahl, /. (coefficient of) conductivity. Lekanorsaure, /. lecanoric acid. 

Material weight gravity point conductivity conductivity ... 

One would expect the presence of trapped electrons in the oxidized samples to give rise to n-type conductivity, conduction possibly taking place by jump migration of the odd electron in the lattice of Cr + ions in a somewhat similar manner to the mechanism discussed by Heikes 174) for the migration of Ni + holes in lithia-doped NiO. The observed p-type conductivity of chromia in an oxygen atmosphere is presumably due to electron holes in a solid which is predominantly CraOs for the low concentrations of chromia-on-alumina where the 7-phase resonance intensity is maximum, the chromium is predominantly in the d-6 valence state 167). 

Since all ions are electrically conducting, conductivity detection can be considered universal in response. Conductivity detection comprises non-suppressed and suppressed modes. 

Conductivity Conduction through AV node is depressed whereas conduction is slightly increased in the auricle and ventricles. 

The motion of ions through solids results in both charge as well as mass transport. Whereas charge transport manifests itself as ionic conductivity in the presence of an applied electric field, macroscopic mass transport (diffusion) occurs in a concentration gradient. Both ionic conductivity and diffusion arise from the presence of point defects in solids (Section 5.2). For a solid showing exclusive ionic conduction, conductivity is written as... 

When the cardiac cell membrane becomes permeable to a specific ion (ie, when the channels selective for that ion are open), movement of that ion across the cell membrane is determined by Ohm s law current = voltage -f resistance, or current = voltage x conductance. Conductance is determined by the properties of the individual ion channel protein. The voltage term is the difference between the actual membrane potential and the reversal potential for that ion (the membrane potential at which no current would flow even if channels were... 

For higher concentrations the equivalent conductance (conductance per ion pair) falls off, as shown in Fig. 10.15. This has been interpreted as suggesting association into neutral complexes, though we shall put forward a different possibility. 

Sn, Sb)02/Mica Sn(0,F)2/Mica electrically conductive conductive flooring, antistatic packaging materials, light colored primed plastic surfaces which can be electrostatically painted in further coating process, light colored conducting surfaces in clean room conditions for dust reduction [5.235]... 

Electrical conductivity Conducts electricity Does not conduct electricity... 

Throughput is therefore proportional to mass flow rate. For a given mass flow rate, throughput is independent of pressure. The relation between throughput and pressure drop A p = pi p across a flow element is written in terms of the conductance C. Resistance is the reciprocal of conductance. Conductance has dimensions of volume per time. 

Fig-2. Correlation of ionic conductivity with poling efficiency (second-order nonlinear optical activity). The upper graph shows conductivity measured as a function of temperature while the lower graph shows second-order nonlinear optical activity (measured by second harmonic generation, SHG) as a function of temperature. Note that second-order NLO activity starts to decrease with the onset of conductivity. Conductivity in this case was shown to arise from ionic impurities... 

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