Conductance-function

The conductivity functions of such electrolytes can be evaluated at the level of limiting laws with the help of Eq. (18), permitting the determination of the tripleion-constant KT and the ion-pair association constant KA. 

Matsuzawa, T., Hashimoto, M, Nara, H., Yoshida, M., Tamura, S. and Igarashi, T. (1997). Current status of conducting function tests in repeated dose toxicity studies in Japan. J. Toxicol. Sci. 22 374—382. 

To construct an image including the lowest nontrivial Fourier components, only three terms in the Fourier series are significant. Those are Go(z), G i(z), and Gdz)- Because of the reflection symmetry of the conductance function g(x,z), the last two Fourier coefficients are equal, and are denoted as Gi(z). Up to this term. 

The two mass action equilibria previously indicated have been used in conjunction with a modified form of the Shedlovsky conductance function to analyze the data in each of the cases listed in Table I. Where the data were precise enough, both K2 and K were calculated. As mentioned previously, the K s so evaluated are practically the same as those obtained for ion pairing in solutions of electrolytes in ammonia and amines. This is encouraging since it implies a fairly normal behavior (in the electrolyte sense) for dilute solutions of metals. Further support of the proposed mass action equilibria can be found in the conductance measurements of sodium in NH8 solutions with added salt. Bems, Lepoutre, Bockelman, and Patterson (4) assumed an additional equilibrium between sodium and chloride ions, associated to form NaCl, to compute the concentration of ionic species, monomers, and dimers when the common ion electrolyte is added. Calculated concentrations of conducting species are employed in the Onsager-Kim extension of the conductance theory for low-field conductance of a mixture of ions. Values of [Na]totai ranging from 5 X 10 4 to 6 X 10 2 and of the ratio of NaCl to [Na]totai ranging from zero to 28.5 are included in the calculations. 

Finally the sensitivity of the conductivity function to sodium chloride is 5 x 10 g/ml with a linear dynamic range of 3 x lo. This detector, is obviously very versatile and, perhaps a little surprisingly, is relatively inexpensive. The detector together with a column, sample valve, pump and recorder, which constitutes a basic liquid chromatograph, costs about 10,000. 

Takeuchi H, Takahashi M, Tarui S, Sanagi S, Takenaka H. Peripheral nerve conduction function in patients treated with antituberculotic agents, with special reference to ethambutol and isoniazid. Foha Psychiatr Neurol Jpn 1980 34(l) 57-64. 

The results for flow on a single fracture surface are incorporated in the derivation of hydraulic properties of unsaturated fractured rock mass. Liquid retention and hydraulic conductivity in partially saturated fractured porous media are modeled in angular pores and slit-shaped spaces representing rock matrix and fractures, respectively. A bimodal distribution of pore sizes and apertures accounts for the two disparate pore scales and porosity. These considerations provide a framework for derivation of retention and hydraulic conductivity functions for fractured porous media (Or Tuller, 2001). 

Shepard, J.S. 1993. Using a fractal model to compute the hydraulic conductivity function. Soil Sci. Soc. Am. J. 57 300-306. 

In accord with the definition of the apparent conductivity function in a uniform... 

Figure 5.23. Apparent conductivity function. Curve index...

Here, E and H are electric field vector and magnetic field vector, respectively. Vector J is the external current source vector. The symbols cr = a x, y, z) and y stand for conductivity function and magnetic permeability constant, respectively, y is assumed to be constant (y = 1). For simplicity only electric sources are considered and displacement currents are assumed to be negligible. 

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