Determination of thermodynamic stability of neodymium chloride hydrates (NdCl3·xH2O) by dynamic transpiration method

2016 ◽  
Vol 126 (3) ◽  
pp. 1407-1415 ◽  
Author(s):  
D. K. Sahoo ◽  
S. Thakur ◽  
R. Mishra
Keyword(s):  
Thermodynamic Stability ◽  
Neodymium Chloride ◽  
Transpiration Method

scholarly journals Determination of the Average Molar Mass of the Vapour Above Molten Sodium Chloride by the Transpiration Method.

1979 ◽  
Vol 33a ◽  
pp. 407-412 ◽  
Author(s):  
Halvor Kvande ◽  
Oldrich Strouf ◽  
Pär Svanström ◽  
Elina Näsäkkälä ◽  
Eberhard Hoyer ◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Molar Mass ◽  
Average Molar Mass ◽  
Molten Sodium ◽  
Transpiration Method

scholarly journals Determination of thermodynamic stability of FeB monoboride

2019 ◽  
Vol 27 (2) ◽  
pp. 69-76
Author(s):  
N. Yu. Filonenko ◽  
A. N. Galdina
Keyword(s):  
Thermodynamic Stability ◽  
Boron Content ◽  
Boron Concentration ◽  
Cast Alloy ◽  
Thermodynamic Characteristics ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Temperature Expansion ◽  
Experimental Findings

In this paper we investigate the phase composition and phase transformations in the Fe-B system alloys with boron content in the range of 9.0–15.0 wt.%. We use microstructural, X-ray diffraction, differential thermal and durometric analyzes to determine the physical properties of the alloys. The experimental findings show that in the as-cast alloy structure there is Fe5B3 phase in small quantities along with FeB monoboride and Fe2B boride. The Fe5B3 phase is formed as a result of the peritectic reaction L+FeB→Fe5B3 at the temperature of 1680 K. The eutectic transformation L→Fe5B3 +Fe2B occurs in the boron concentration range of 8.8–10.5 wt.%. After annealing of the Fe-B alloys at the temperature of 1473 K and cooling with the rate of 102 K/s we observe the occurring of the Fe5B3 phase. To spot an opportunity of the secondary monoboride formation in the alloys under consideration, we calculate the thermodynamic characteristics of stability of the system. Accounting for the contribution of the first degree approximation of high-temperature expansion of thermodynamic potential of FeB iron monoboride in a Fe-B binary alloy enables us to study its thermodynamic stability. It is shown that stability decrease of FeB at 1423 K allows suggesting that at this temperature the phase transformation occurs and this fact correlates to the differential thermal analysis results.

DNA structure, nucleosome placement and chromatin remodelling: a perspective

2012 ◽  
Vol 40 (2) ◽  
pp. 335-340 ◽  
Author(s):  
Andrew A. Travers ◽  
Cédric Vaillant ◽  
Alain Arneodo ◽  
Georgi Muskhelishvili
Keyword(s):  
Dna Sequence ◽  
Thermodynamic Stability ◽  
Budding Yeast ◽  
Nucleosome Positioning ◽  
Chromatin Remodelling ◽  
Chromatin Organization ◽  
Eukaryotic Genome ◽  
Major Question ◽  
Chromatin Biology

A major question in chromatin biology is to what extent the sequence of DNA directly determines the genetic and chromatin organization of a eukaryotic genome? We consider two aspects to this question: the DNA sequence-specified positioning of nucleosomes and the determination of NDRs (nucleosome-depleted regions) or barriers. We argue that, in budding yeast, while DNA sequence-specified nucleosome positioning may contribute to positions flanking the regions lacking nucleosomes, DNA thermodynamic stability is a major component determinant of the genetic organization of this organism.

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