Luminometric and differential scanning calorimetry (DSC) studies on heat - and radiation inactivation ofBacillus Subtilis luxABspores

2002 ◽  
Vol 49 (1) ◽  
pp. 141-150 ◽  
Author(s):  
J. Farkas ◽  
É. Andrássy ◽  
Z. Formanek ◽  
L. Mészáros
Keyword(s):  
Differential Scanning Calorimetry ◽  
Ofbacillus Subtilis ◽  
Scanning Calorimetry ◽  
Radiation Inactivation ◽  
Dsc Studies

Precursors to crystallization in amorphous CdGeAs2

1986 ◽  
Vol 44 ◽  
pp. 454-455
Author(s):  
R.F. Speyer ◽  
W.M. Kriven ◽  
S.H. Risbud
Keyword(s):  
Differential Scanning Calorimetry ◽  
Thermal Treatment ◽  
Chalcopyrite Structure ◽  
Slow Heating ◽  
X Ray Diffraction ◽  
Heating Rates ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Dsc Studies ◽  
Precursor Phase

A myriad of crystalline microstructures may be obtained by minute variations in thermal treatment during the devitrification of CdGeAs2 from the glass. Differential Scanning Calorimetry (DSC) studies show that the single crystallization exotherm observed under moderate heating conditions, splits into two superimposed exotherms (a moderately energetic one followed by a substantially energetic one) at very slow heating rates, as shown in Figure 1.It is believed that the first DSC exotherm represents the nucleation and partial growth of a non-stoichiometric. crystalline precursor phase. X-ray diffraction studies of samples sequentially quenched along the DSC exotherm indicated, to reasonable confidence, that the precursor phase was pure germanium, and with absolute confidence that the larger exotherm represents the formation of CdGeAs2 adopting the chalcopyrite structure. The TEM. STEM, and EDS studies described herein substantiate our elucidation of the precursor phase.

Small angle X-ray scattering (SAXS) and differential scanning calorimetry (DSC) studies of amide phospholipids

2005 ◽  
Vol 133 (1) ◽  
pp. 79-88 ◽  
Author(s):  
Xiuhong Zhai ◽  
Markus Bartel ◽  
Gerald Brezesinski ◽  
Bernd Rattay ◽  
Helmuth Möhwald ◽  
...  
Keyword(s):  
Differential Scanning Calorimetry ◽  
Small Angle ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Dsc Studies ◽  
X Ray Scattering ◽  
Ray Scattering

Thermal Stability of N-Heterocycle-Stabilized Iodanes – A Systematic Investigation

2019 ◽  
Author(s):  
Andreas Boelke ◽  
Yulia A. Vlasenko ◽  
Mekhman S. Yusubov ◽  
Boris Nachtsheim ◽  
Pavel Postnikov
Keyword(s):  
Thermal Stability ◽  
Differential Scanning Calorimetry ◽  
Thermogravimetric Analysis ◽  
Systematic Investigation ◽  
Scanning Calorimetry ◽  
Thermal Stability Of

<p>The thermal stability of pseudocyclic and cyclic <i>N</i>-heterocycle-stabilized (hydroxy)aryl- and mesityl(aryl)-l<sup>3</sup>-iodanes (NHIs) through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) is investigated. NHIs bearing <i>N</i>-heterocycles with a high N/C-ratio such as triazoles show among the lowest descomposition temperatures and the highest decomposition energies. A comparison of NHIs with known (pseudo)cyclic benziodoxolones is made and we further correlated their thermal stability with reactivity in a model oxygenation. </p>

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