Physical Properties of a New Type of Molten Electrolytes, FeCl3-DMSO2

2005 ◽  
Vol 60 (6) ◽  
pp. 444-448 ◽  
Author(s):  
Chao-Chen Yang ◽  
Min-Fong Shu
Keyword(s):  
Phase Diagram ◽  
Physical Properties ◽  
Direct Current ◽  
Current Method ◽  
Equivalent Weight ◽  
Thermogravimetric Analyzer ◽  
New Type ◽  
The Mean ◽  
Increasing Temperature ◽  
Molten Electrolytes

Some physical properties of ferric chloride-dimethyl sulfone (FeCl3-DMSO2) melts were investigated. The phase diagram was determined by differential scanning calorimeter and thermogravimetric analyzer. The electric conductivity, measured with computerized direct-current method, increased with increasing temperature and DMSO2 content. The conductivity was maximal (0.02149 S/cm) at 115 °C for 30 mol% FeCl3. The densities of all melts decreased with increasing temperature and DMSO2 content. The equivalent conductivities were given by Λ = κMmix/ρ, where Mmix is the mean equivalent weight of the binary melts. These equivalent conductivities were fitted by the equationΛ =Λoexp(−EΛ /RT), where the activation energies EΛ were 8.63, 22.94, 25.92 kJ/mol for 30, 40, 50 mol% FeCl3, respectively.

scholarly journals Physical Properties Of A New Type Of Molten Electrolytes, Zncl2-Dmso2

2003 ◽  
Vol 58 (7-8) ◽  
pp. 451-456 ◽  
Author(s):  
Min-Fong Shu ◽  
Hsin-Yi Hsu ◽  
Chao-Chen Yang
Keyword(s):  
Phase Diagram ◽  
Physical Properties ◽  
Direct Current ◽  
Arrhenius Equation ◽  
Equivalent Weight ◽  
Thermogravimetric Analyzer ◽  
New Type ◽  
The Mean ◽  
Increasing Temperature ◽  
Molten Electrolytes

In the present work some physical properties of binary zinc chloride-dimethylsulfone (ZnCl2- DMSO2) melts were investigated; the phase diagram was determined by Differential Scanning Calorimeter (DSC) and Thermogravimetric Analyzer (TGA) analyses; the electric conductivity was measured using a direct-current computerized method. The conductivities of the melts increased with increasing temperature and DMSO2 content. There was a maximum of the conductivity at 40 mol% ZnCl2; the conductivity was 0.00423 S/cm at 110 ◦C. The density of all the melts decreased with increasing temperature and DMSO2 contents. The equivalent conductivities were given by Λ =κMmix/ρ, where Mmix is the mean equivalent weight. These equivalent conductivities were fitted by the Arrhenius equation, where the activation energies were 25.2, 34.6, 44.5, 53.7 kJ/mol for 40, 50, 60, 70 mol% ZnCl2, respectively.

Physical Properties of a New Type of Self-expandable Nitinol Stent

1999 ◽  
Vol 41 (2) ◽  
pp. 275
Author(s):  
SangSoo Park ◽  
Tae Hyung Kim ◽  
Sang Woo Song ◽  
Seong Gwon Kang ◽  
Soo Jin Huh ◽  
...  
Keyword(s):  
Physical Properties ◽  
Nitinol Stent ◽  
New Type

Stability and Stabilization for Discrete System With Probabilistic Nonlinearities

2013 ◽  
Vol 135 (5) ◽  
Author(s):  
Xia Zhao ◽  
Engang Tian
Keyword(s):  
Sufficient Conditions ◽  
Discrete Systems ◽  
System Model ◽  
Linear Matrix ◽  
Time Varying Delay ◽  
Mean Square Stability ◽  
New Type ◽  
Stability And Stabilization ◽  
The Mean ◽  
Varying Delay

This paper investigates stability and stabilization of discrete systems with probabilistic nonlinearities and time-varying delay. New characters of the nonlinearities, the probability of the nonlinearities happening between different bounds, are used to build new type of system model, which can help us make a full use of the inner variation information of the nonlinearities. With the help of the new characters, new system model is proposed. Then, sufficient conditions for the mean square stability of the system can be obtained by using the Lyapunov functional approach and linear matrix inequalities technique. An example is proposed to illustrate the efficiency of the proposed method.

Calculation of physical properties of glass via the phase diagram approach

2017 ◽  
Vol 457 ◽  
pp. 36-43 ◽  
Author(s):  
Q.Y. Zhang ◽  
W.J. Zhang ◽  
W.C. Wang ◽  
Z.H. Jiang
Keyword(s):  
Phase Diagram ◽  
Physical Properties ◽  
Diagram Approach

A global phase diagram for the ion-dipole model in the mean spherical approximation

1998 ◽  
Vol 109 (1) ◽  
pp. 214-222 ◽  
Author(s):  
R. Thiéry ◽  
S. N. Lvov ◽  
J. Dubessy
Keyword(s):  
Phase Diagram ◽  
Dipole Model ◽  
Spherical Approximation ◽  
Mean Spherical Approximation ◽  
The Mean ◽  
Global Phase Diagram

Determination of Dipole Spacing in Electrical Landfill Leakage Detection

2010 ◽  
Vol 171-172 ◽  
pp. 171-174
Author(s):  
Hong Cheng ◽  
Peng Kun Liu ◽  
Yu Ling Wang ◽  
Chang Xin Nai
Keyword(s):  
High Voltage ◽  
Direct Current ◽  
Current Method ◽  
Leakage Detection ◽  
High Voltage Direct Current ◽  
The Impact

The dipole spacing can directly affects the detecting sensitivity and accuracy in the landfill leakage detection by the high voltage direct current method. Based on the high voltage DC detecting model, the impact of dipole spacing on locating leaks is analyzed taking a single leak and multiple leaks as example. The results show that the greater the dipole spacing is, the higher the detecting sensitivity is; the smaller the dipole spacing is, the higher the detecting accuracy is. For multiple leaks, only one leak can be located when the dipole spacing is greater than the distance between the two leaks. In order to detect all leaks correctly, the dipole spacing should be smaller than the distance between the two leaks.

Multiple Superconducting Phases in UTe2: A Complex Analogy to Superfluid Phases of 3He

2021 ◽  
Vol 1 ◽  
Author(s):  
Shinsaku Kambe ◽  
Keyword(s):  
Phase Diagram ◽  
Physical Properties ◽  
Low Temperatures ◽  
Quantum Statistics ◽  
Superconducting Phases ◽  
Fermion Systems ◽  
Quantum Liquids ◽  
Wave Symmetry ◽  
Ferromagnetic Interactions ◽  
Ordered State

In quantum liquids, large differences are observed owing to differences in quantum statistics. The physical properties of liquid <sup>3</sup>He (Fermion) and <sup>4</sup>He (Boson) are considerably different at low temperatures. After the discovery of superconductivity in electron (i.e., Fermion) systems, a similar pairing ordered state was expected for <sup>3</sup>He. Remarkably, the observed ordered state of <sup>3</sup>He was more surprising than expected, multiple superfluid phases in the <em>T-P</em> phase diagram. The origin of the multiple phases was attributed to ferromagnetic interactions in the <em>p</em>-wave symmetry state.

Closed-chest electrode-catheter technique for His bundle ablation in dogs

1981 ◽  
Vol 241 (2) ◽  
pp. H283-H287 ◽  
Author(s):  
R. Gonzalez ◽  
M. Scheinman ◽  
W. Margaretten ◽  
M. Rubinstein
Keyword(s):  
Direct Current ◽  
Beta Blockade ◽  
Stable Model ◽  
Av Block ◽  
His Bundle ◽  
Catheter Technique ◽  
Distal Surface ◽  
Overdrive Pacing ◽  
The Mean ◽  
Complete Atrioventricular

A modified quadripolar electrode catheter that had two-thirds of the distal surface insulated with high-voltage plastic was inserted in 10 dogs. After a His bundle potential had been recorded, a synchronized direct-current electrical discharge was delivered between the electrodes showing the largest His bundle deflection using a standard direct-current defibrillator, and a metallic plate was positioned over the dog's back. Complete atrioventricular (AV) block was induced in 9 of 10 dogs, which were followed for 3 mo before being killed. During AV block, the QRS complex was broad and not preceded by a His bundle deflection. The mean control cycle length during AV block was 1,441 +/- 223 ms and decreased to 1,151 +/- 181 ms after exercise, a response that was usually abolished by beta-blockade. Overdrive pacing resulted in pacemaker suppression with gradual rate stabilization after 10-20 beats. There was no evidence of myocardial or valvular damage. This technique provides for a stable model of complete AV block and is suitable for experiments in which heart rate control is required. In addition, this technique may be of value for patients with tachycardia requiring His bundle section.

scholarly journals Kinetics of drying of basil leaves (Ocimum basilicum L.) in the infrared

2012 ◽  
Vol 16 (12) ◽  
pp. 1346-1352 ◽  
Author(s):  
Renata C. dos Reis ◽  
Ivano A. Devilla ◽  
Diego P. R. Ascheri ◽  
Ana C. O. Servulo ◽  
Athina B. M. Souza
Keyword(s):  
Experimental Data ◽  
Ocimum Basilicum ◽  
Coefficient Of Determination ◽  
Chisquare Test ◽  
The Mean ◽  
Drying Curves ◽  
The One ◽  
Increasing Temperature ◽  
Air Circulation ◽  
Kinetics Of

The objective of this paper was to model the drying curves of the leaves of basil (Ocimum basilicum L.) in the infrared at temperatures of 50, 60, 70 and 80 ºC and to evaluate the influence of drying temperature on the color of dried leaves. Drying was conducted in infrared dryer with temperature and greenhouse air circulation. Experimental data were fitted to eight mathematical models. The magnitude of the coefficient of determination (R²), the mean relative error (P), the estimated mean error (SE) and chisquare test (χ2) were used to verify the degree of fitness of the models. From the study it was concluded that: a) the behavior of the drying curves of basil leaves was similar to most agricultural products, the drying times in the infrared were less than the drying times in an oven with air circulation, b) the mathematical drying model proposed by Midilli et al. (2002) was the one which best adjusted to the experimental data, c) the diffusion coefficient ranged from 9.10 x 10-12 to 2.92 x 10-11 m² s-1 and d) the color of the samples was highly influenced by drying, becoming darker due to loss of chlorophyll with increasing temperature.

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