نتایج جستجو برای: kinetic thermal degradation

تعداد نتایج: 442910  

2015
Ozgur Tataroglu Xiaohu Zhao Ania Busza Jinli Ling John S. O’Neill Patrick Emery

Graphical Abstract Highlights d Calcium and the protease SOL trigger TIM degradation in response to thermal input d Thermal TIM degradation resets the Drosophila circadian pacemaker d TIM integrates light and temperature input d In mammals, the SOL homolog also impacts circadian thermal responses In Brief Temperature phase shifts the Drosophila circadian clock through the regulated degradation ...

2011
S. Straus

Fortisan, cellulose triacetate, and NOroxidized cellulose were pyrolyzed in a vacuum in the temperature range 1800 to 465 0 C. Cotton cellulose and cellulose t ri acetate were also pyrolyzed in nitrogen at atmospheric pressure. The tar yields were in the decreasing order from: Cotton, Fortisan, cellulose triacetate, and oxidized cellulose. The other volatiles consisted mainly of acetic acid, ca...

The present study reports, the synthesis of ZnO-bentonite nanocomposite by the incorporation of ZnO with bentonite clay. The nanocomposite was characterised by XRD and SEM. ZnO-bentonite was effectively used for removal of Methylene Blue (MB). Removal of MB takes place by photocatalytic degradation and adsorption. Photocatalytic degradation of MB occurs by advanced oxidation process. The factor...

Journal: :international journal of environmental research 2011
c.a. aguilar c. montalvo j.g. ceron e. moctezuma

the photocatalytic degradation of a common analgesic (acetaminophen) with titanium dioxide irradiated with low energy ultraviolet light (365 nm) was studied in order to determine the effect of several parameters such as catalyst’s weight, photochemical effect, and initial concentration. the results indicate that acetaminophen is degraded in the order of 4% by the photochemical effect. the pres...

ZnO- nanoparticles with an average particle size of 24 nm were successfully synthesized using the microwave assisted sol- gel technique. Structural and morphological properties of the nanoparticles were characterized by X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), Energy disperse spectrum (EDS) and Fourier transform infrared spectroscopy (FTIR). The band gap ene...

2013
D. JUAREZ

Thermal analysis (DSC: Differential Scanning Calorimetry and TGA: Thermogravimetric Analysis) of SEBS blends have been studied in this paper. SEBS blends were made using two transparent SEBS commercial grades with extreme hardness values. The first thermal property determined in SEBS blends was the evaluation of the thermal degradation at high temperatures (DSC). Another thermal property of the...

2008
D. BRAUN

A survey is given of the recent advances in the study of and the present knowledge of the thermal degradation of polyvinyl chloride. The sites for initiation of the thermal degradation, the mechanism of the dehydrochiorination, the discolouration of PVC by heat and the influence of plasticizers on the rate of degradation are discussed.

ژورنال: مواد پرانرژی 2014

Determine the lifetime of explosive chemicals is one of the important research fields in recent years. Among the various methods of estimating life expectancy, methods based on solid-state kinetic analysis of the thermal decomposition of a chemical explosive are scientific and the accuracy of the method is confirmed. In this study, the determination of kinetic parameters of Ocfol explosive was ...

Journal: :Physical review letters 2011
E Kroupp D Osin A Starobinets V Fisher V Bernshtam L Weingarten Y Maron I Uschmann E Förster A Fisher M E Cuneo C Deeney J L Giuliani

The time history of the local ion kinetic energy in a stagnating plasma was determined from Doppler-dominated line shapes. Using independent determination of the plasma properties for the same plasma region, the data allowed for inferring the time-dependent ion temperature, and for discriminating the temperature from the total ion kinetic energy. It is found that throughout most of the stagnati...

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