Tarasov function

Fig. 1.2. Computed and experimental heat capacities rf polystyrene. Glassy solid state A skeletal contribution (Tarasov function, e, = 284 K, 6s = 48 K, H = 6) B group contributions (Ng = 42) C total, comjHited heat capacity at constant volume D computed heat capacity at constant pressure and experimental points. Liquid state E experimental data between the glass transition, Tg = 373 K, and 600 K (heat capacity at constant pressure)...

The application of neural networks to are described by Noid DW, Varma-Nair M, Wunderlich B, Darsey, JA (1991) Neural Network Inversion of the Tarasov Function Used for the Computation of Polymer Heat Capacities. 1 Thermal Anal 37 2295-2300. Darsey JA, Noid DW, Wunderlich B, Tsoukalas L (1991) Neural-Net Extrapolations of Heat Capacities of Polymers to Low Temperatures. Makromol Chem Rapid Commun 12 325-330. 

The final subblock of the Heat Capacity Data Bank involves programs for needed calculations in the thermal analysis field. The simple stages involve data treatment for input and output, calculation of derived functions as given, for example, in egs. 1 to 3-Further stages include the data analysis in form of Debye and Tarasov 0-temperatures and group vibration frequencies, a stage already completed (VI). Self-... 

Figure 7.36. Influence of filler s surface on microheterogeneity coefficient of copolymers. [Adapted, by permission, from Vasnev V A, Tarasov A I, Istratov V N, Ignatov V N, Krasnov A P, Kuznetsov A I, Surkova I N, Reactive Functional Polym., 26, Nos.1-3, 1995, 177-83.]...

For deuterated, amorphous, solid polystyrene and ring-only deuterated polystyrene, heat capacities lead to Tarasov 3 and j temperatures of 55, 244 K and 49,278 K, respectively. The thermodynamic functions S, H, and G are in [22]. For other data, see [23]. 

D (0jT) represents the three dimensional Debye function. D2(0jT) is the two dimensional Debye function tabulated by Tarasov (1959). Di 0IT) finally is the one dimensional Debye function, also tabulated [Wunderlich (1962)]. Eq. (8) is based on the assumption that a certain... 

Overall, the vibrational spectrum and heat capacities of graphite are known to an equal degree. Of particular interest is the dependence of the heat capacity up to only 1° K and the intermediate region to about 100° K which can be approximated by two dimensional continuum theories of vibration. The frequency spectrum of Fig. 111,4 indicates how much a Tarasov-type function, consisting of a r parabola up to 0j and a linear increase up to would correspond to the actual situation. The limiting high frequency corresponds to a 0-temperature of 2400° K. 

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