scholarly journals Viscosity and Density of 1-Alkanol (C3–C11) Quaternary and Quinary Systems at Different Temperature Levels.

2019 ◽  
Vol 2 (1) ◽  
pp. 59-66
Author(s):  
Nidal Hussein

The measured kinematic viscosity and density and the calculated absolute viscosity for selected quaternary and quinary n-alkanol mixtures are presented in this study. The mixtures are composed of 1-propanol, 1-pentanol, 1- heptanol, 1-nonanol, and 1-undecanol. Both the kinematic viscosity and density were measured for the pure components and several intermediate compositions for the selected mixtures at two temperature levels of 293.15 and 298.15 K. The measured data were used to test the predictive capability of different models. The McAllister three body interaction model and the GC-UNIMOD model showed the best overall predictive capability of all models.

2019 ◽  
Author(s):  
Rebecca Lindsey ◽  
Nir Goldman ◽  
Laurence E. Fried ◽  
Sorin Bastea

<p>The interatomic Chebyshev Interaction Model for Efficient Simulation (ChIMES) is based on linear combinations of Chebyshev polynomials describing explicit two- and three-body interactions. Recently, the ChIMES model has been developed and applied to a molten metallic system of a single atom type (carbon), as well as a non-reactive molecular system of two atom types at ambient conditions (water). Here, we continue application of ChIMES to increasingly complex problems through extension to a reactive system. Specifically, we develop a ChIMES model for carbon monoxide under extreme conditions, with built-in transferability to nearby state points. We demonstrate that the resulting model recovers much of the accuracy of DFT while exhibiting a 10<sup>4</sup>increase in efficiency, linear system size scalability and the ability to overcome the significant system size effects exhibited by DFT.</p>


2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Simon Panyella Pedersen ◽  
K. S. Christensen ◽  
N. T. Zinner

2021 ◽  
pp. 105281
Author(s):  
Md Sanam Suraj ◽  
Rajiv Aggarwal ◽  
Md Chand Asique ◽  
Amit Mittal ◽  
Mamta Jain ◽  
...  

1927 ◽  
Vol 10 (6) ◽  
pp. 987-1005 ◽  
Author(s):  
Vladimir Pertzoff

1. The preparation and purification of paracasein was described and certain criteria for the absence of free enzyme provided for. 2. The solubility of purified paracasein in water at low temperature was studied, and found practically identical with the solubility of casein. 3. The capacity of paracasein to bind base was investigated by means of its solubility in NaOH at 5° and at 23° ± 2°C., and found to be distinctly different from that of casein. 4. At these two temperature levels paracasein had a 1.5 greater capacity to bind base than casein. The equivalent combining weights of paracasein and casein were found to stand each to the other, apapproximately, as 2 to 3. 5. This relationship suggested that the temperature coefficients of the solubility of paracasein and casein in NaOH are identical. 6. This evidence indicates that paracasein is a modification of casein, distinguishable by physicochemical means.


1977 ◽  
Vol 83 (2) ◽  
pp. 615-624 ◽  
Author(s):  
S. K. Sarkar ◽  
S. K. Das ◽  
D. Roy ◽  
S. Sengupta

2009 ◽  
Vol 102 (17) ◽  
Author(s):  
A. J. Daley ◽  
J. M. Taylor ◽  
S. Diehl ◽  
M. Baranov ◽  
P. Zoller
Keyword(s):  

2015 ◽  
Vol 17 (16) ◽  
pp. 10934-10943 ◽  
Author(s):  
Martin J. Wiedemair ◽  
Manuel Hitzenberger ◽  
Thomas S. Hofer

Selective adjustment of the three-body interaction of a dissociative water potential results in a significant improvement in the description of proton transport properties.


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