Polymorphism of levofloxacin: structure, properties and phase transformation

CrystEngComm ◽  
2019 ◽  
Vol 21 (41) ◽  
pp. 6196-6207 ◽  
Author(s):  
Ning Wei ◽  
Lina Jia ◽  
Zeren Shang ◽  
Junbo Gong ◽  
Songgu Wu ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Acetic Acid ◽  
Solid State ◽  
Ethylene Glycol ◽  
Crystal Forms ◽  
Structure Properties

The landscape of solid-state crystal forms of levofloxacin is further expanded with one solved anhydrous α form and three newly discovered solvates including n-propanol solvate, ethylene glycol solvate and acetic acid solvate.

scholarly journals Solid state phase transformation kinetics in Zr-base alloys

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
A. R. Massih ◽  
Lars O. Jernkvist
Keyword(s):  
Phase Transformation ◽  
Solid State ◽  
Zirconium Alloys ◽  
Excess Oxygen ◽  
Transformation Kinetics ◽  
Fuel Cladding ◽  
Reactor Accident ◽  
Phase Transformation Kinetics ◽  
Solid State Phase Transformation ◽  
Water Reactors

AbstractWe present a kinetic model for solid state phase transformation ($$\alpha \rightleftharpoons \beta$$ α ⇌ β ) of common zirconium alloys used as fuel cladding material in light water reactors. The model computes the relative amounts of $$\beta$$ β or $$\alpha$$ α phase fraction as a function of time or temperature in the alloys. The model accounts for the influence of excess oxygen (due to oxidation) and hydrogen concentration (due to hydrogen pickup) on phase transformation kinetics. Two variants of the model denoted by A and B are presented. Model A is suitable for simulation of laboratory experiments in which the heating/cooling rate is constant and is prescribed. Model B is more generic. We compare the results of our model computations, for both A and B variants, with accessible experimental data reported in the literature covering heating/cooling rates of up to 100 K/s. The results of our comparison are satisfactory, especially for model A. Our model B is intended for implementation in fuel rod behavior computer programs, applicable to a reactor accident situation, in which the Zr-based fuel cladding may go through $$\alpha \rightleftharpoons \beta$$ α ⇌ β phase transformation.

Measurement of the thermodynamic properties for the reactive system ethylene glycol–acetic acid

2007 ◽  
Vol 258 (2) ◽  
pp. 115-124 ◽  
Author(s):  
Bastian Schmid ◽  
Michael Döker ◽  
Jürgen Gmehling
Keyword(s):  
Acetic Acid ◽  
Thermodynamic Properties ◽  
Ethylene Glycol ◽  
Reactive System

Monitoring the microbial community during solid-state acetic acid fermentation of Zhenjiang aromatic vinegar

2011 ◽  
Vol 28 (6) ◽  
pp. 1175-1181 ◽  
Author(s):  
Wei Xu ◽  
Zhiyong Huang ◽  
Xiaojun Zhang ◽  
Qi Li ◽  
Zhenming Lu ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Microbial Community ◽  
Solid State ◽  
Acid Fermentation ◽  
Acetic Acid Fermentation

First principles study on the electronic structure properties of Keggin polyoxometalates on Carbon substrates for solid-state devices

2017 ◽  
Vol 136 (2) ◽  
Author(s):  
Jesús Muñiz ◽  
Christian Celaya ◽  
Ana Mejía-Ozuna ◽  
Ana Karina Cuentas-Gallegos ◽  
L. M. Mejía-Mendoza ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Solid State ◽  
First Principles ◽  
First Principles Study ◽  
Solid State Devices ◽  
Carbon Substrates ◽  
Structure Properties
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