Temperature dependence of the excess resistivity and thermopower in dilute alloys of tungsten. I. Experimental results

1987 ◽  
Vol 17 (4) ◽  
pp. 1013-1020 ◽  
Author(s):  
L Uray
Keyword(s):  
Temperature Dependence ◽  
Experimental Results ◽  
Dilute Alloys

Modeling of High-Signal Electrostriction. II

1990 ◽  
Vol 45 (9-10) ◽  
pp. 1095-1101
Author(s):  
J von Cieminski
Keyword(s):  
Phase Transition ◽  
Temperature Dependence ◽  
Strain Field ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Second Order ◽  
Experimental Results ◽  
High Signal ◽  
Qualitative And Quantitative

Abstract The predictions obtained with a thermodynamical method are compared with experimental results. Several materials which pass a ferroelectric phase transition of first or second order are investigated. The predictions correspond well with the experimentaly determined qualitative and quantitative features as to the field and temperature dependence. Finally, extraordinary strain-field curves are predicted and proved.

Susceptibility of Magnetic Graphite-CoCl2 Intercalation Compounds

1982 ◽  
Vol 20 ◽  
Author(s):  
M Elahy ◽  
G. Dresselhaus
Keyword(s):  
Magnetic Susceptibility ◽  
Temperature Dependence ◽  
Theoretical Calculations ◽  
Experimental Results ◽  
Intercalation Compounds ◽  
Two Dimensional ◽  
Graphite Intercalation Compounds ◽  
Magnetic Systems ◽  
Planar Model ◽  
Graphite Intercalation

ABSTRACTPrecise measurements of the temperature dependence of the magnetic susceptibility for stage 2 and 5 graphite-CoCl2 intercalation compounds are reported. Comparison of the experimental results with theoretical calculations based on a two-dimensional planar model show agreement with theory, suggesting that graphite intercalation compounds represent ideal two-dimensional magnetic systems.

Second Moment Simulations for Different Models of Rotations and Oscillations in Polycrystalline Thiourea Pyridinium Nitrate Inclusion Compound and its Two Perdeuterated Analogues

2005 ◽  
Vol 60 (3) ◽  
pp. 177-182 ◽  
Author(s):  
Roman Goc ◽  
Aleksandra Pajzderska ◽  
Jan Wᶏsicki
Keyword(s):  
Temperature Dependence ◽  
Absorption Spectra ◽  
Inclusion Compound ◽  
Experimental Results ◽  
Second Moment ◽  
Potential Barriers ◽  
H Nmr ◽  
Three Samples ◽  
Wide Range ◽  
Insight Into

The second moment of 1H NMR absorption spectra was calculated for three samples of [(NH2)2CS]2(C5H5NH)+NO3−, two of which were deuterated at different positions. The calculations were performed for different rotations and oscillations, and for a wide range of frequencies of these motions. These frequencies were then transformed into temperatures resulting in the temperature dependence of the second moment. The calculations were undertaken in order to analyze the experimental results obtained in our laboratory. Special attention was paid to molecular reorientations through unequal potential barriers. Comparison of the second moment values calculated for different models of rotation with the experimental ones enabled a deeper insight into the internal motion in this material as a function of temperature.

Kinetics of autothermal thermophilic aerobic digestion – application and extension of Activated Sludge Model No 1 at thermophilic temperatures

2007 ◽  
Vol 56 (9) ◽  
pp. 137-145 ◽  
Author(s):  
R. Kovács ◽  
P. Miháltz ◽  
Zs. Csikor
Keyword(s):  
Mathematical Model ◽  
Activated Sludge ◽  
Temperature Dependence ◽  
Decay Rates ◽  
Experimental Results ◽  
Aerobic Digestion ◽  
Activated Sludge Model ◽  
Thermophilic Aerobic Digestion ◽  
Autothermal Thermophilic Aerobic Digestion ◽  
Kinetics Of

The application of an ASM1-based mathematical model for the modeling of autothermal thermophilic aerobic digestion is demonstrated. Based on former experimental results the original ASM1 was extended by the activation of facultative thermophiles from the feed sludge and a new component, the thermophilic biomass was introduced. The resulting model was calibrated in the temperature range of 20–60 °C. The temperature dependence of the growth and decay rates in the model is given in terms of the slightly modified Arrhenius and Topiwala-Sinclair equations. The capabilities of the calibrated model in realistic ATAD scenarios are demonstrated with a focus on autothermal properties of ATAD systems at different conditions.

DEPENDENCE OF CRITICAL CURRENT ON TEMPERATURE FOR DIRTY TYPE-II SUPERCONDUCTORS

1989 ◽  
Vol 03 (06) ◽  
pp. 489-492
Author(s):  
Z. YU ◽  
S.Y. DING ◽  
K.X. SHI ◽  
J.L. YAN
Keyword(s):  
Temperature Dependence ◽  
Critical Current ◽  
Electron Scattering ◽  
Flux Pinning ◽  
Multilayer Films ◽  
Experimental Results ◽  
Type Ii ◽  
Defect Model ◽  
Pinning Mechanism ◽  
Type Ii Superconductors

Based on the non-ideal planar defect model developed by the authors earlier and electron scattering flux pinning mechanism, we have derived a temperature dependence of critical current which predicts a same relation for both of I c and H c2 in dirty type-II superconductors. In order to test the prediction, the I c (T) and H c2 (T) were measured on PbBi-SiO multilayer films. The agreement between the theoretical and experimental results is satisfactory.

ON THE TEMPERATURE DEPENDENCE OF THE REACTION VELOCITY

1955 ◽  
Vol 33 (10) ◽  
pp. 1544-1551 ◽  
Author(s):  
J. B. Hyne ◽  
R. E. Robertson
Keyword(s):  
Temperature Dependence ◽  
Thermodynamic Parameters ◽  
Arrhenius Equation ◽  
Experimental Results ◽  
Activation Process ◽  
Reaction Velocity

The temperature dependence of the rates of three reactions in solution which the Arrhenius equation fails to express has been analyzed in terms of equations involving higher powers of the temperature and an improved fit of the experimental results obtained. The significance of the equations in terms of the thermodynamic parameters of the activation process is discussed.

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