نتایج جستجو برای: sequential kinetic activation

تعداد نتایج: 590988  

One of the decisive factors in obtaining the desired properties in coatings is their complete curing, which necessitates the study of kinetics of curing. In recent years, many studies have been conducted on the use of polyhedral oligomeric silsesquioxane (POSS) in coatings. Creating functional groups on POSS and using it in formulation can create new or improve the properties of coatings. I...

ژورنال: مواد پرانرژی 2018

In this research, the thermal stability and decomposition kinetics of pentaerythritol tetranitrate (PETN) and Pentastite explosives have been studied experimentally using non-isothermal differential thermal analysis (DTA) and thermo-gravimetric (TG) methods at heating rates of 4.0, 6.0, 8.0 and 10.0 °C/min. The kinetic parameter of activation energy (Ea) and critical ignition temperature fo...

Davood Rashtchian, Riyaz Kharrat, Samaneh Razzaghi Shapour Vossoughi Soheil Saraji

In this work, the potential of auto-ignition of heavy oil during in-situ combustion (ISC) process was studied. Kinetic studies were carried out using Thermo Gravimetric Analyzer (TGA), Differential Scanning Calorimetry (DSC) and Accelerating Rate Calorimetric (ARC) techniques. Effects of oxygen partial pressure, reservoir pressure and clay on auto ignition condition were investigated on a n...

Journal: :Polymer Chemistry 2023

The effect of neighbouring fluorine atom activation on transamidation is demonstrated through molecular kinetic/DFT studies and vitrimer applications.

2011
Leighanne A. Brammer Jessica M. Smith Herschel Wade Caren Freel Meyers Caren Freel

Background: 1-Deoxy-D-xylulose 5-phosphate (DXP) synthase is a thiamine diphosphate (ThDP)dependent enzyme in pathogen isoprenoid biosynthesis and a potential drug target. Results: Tryptophan fluorescence and kinetic analyses show that donor and acceptor substrates bind reversibly and independently to DXP synthase. Conclusion: DXP synthase catalyzes a novel, ThDP-dependent, random sequential me...

2001
John R. Grothusen

Bisubstrate kinetics and end product and dead end inhibition studies were performed on lysyl-tRNA synthetase isolated from rat liver. The kinetic patterns obtained are consistent with a sequential ordered mechanism of substrate addition, tRNA bound first, followed by lysine, and then by ATP. Pyrophosphate and AMP are released in a random fashion with aminoacylated tRNA the last product to dis...

Journal: :Journal of the American Chemical Society 2009
Fernando Bozoglian Sophie Romain Mehmed Z Ertem Tanya K Todorova Cristina Sens Joaquim Mola Montserrat Rodríguez Isabel Romero Jordi Benet-Buchholz Xavier Fontrodona Christopher J Cramer Laura Gagliardi Antoni Llobet

A thorough characterization of the Ru-Hbpp (in,in-{[Ru(II)(trpy)(H(2)O)](2)(mu-bpp)}(3+) (trpy is 2,2':6',2''-terpyridine, bpp is bis(2-pyridyl)-3,5-pyrazolate)) water oxidation catalyst has been carried out employing structural (single crystal X-ray), spectroscopic (UV-vis and NMR), kinetic, and electrochemical (cyclic voltammetry) analyses. The latter reveals the existence of five different o...

Abdul R. Sheik Alafara A. Baba, Folahan A. Adekola Kemi I. Olawale Malay K. Ghosh Tryphena Young

A study of the kinetic analysis of total lead from spent Car battery ash by hydrochloric acidleaching has been examined. The physico-chemical analysis of the ash powder was carried outby the Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and X–ray diffraction (XRD).The effects of the acid concentration, temperature and particle size on the rate of battery ashdissolution have been investi...

2013
Mino Yang Graham R. Fleming

We develop a formulation allowing construction of various kinetic domains from a master equation for population transfer dynamics and enabling calculation of the time scales of transition between such domains. In this way, a complicated network of energy transfer steps can be simplified to a series of sequential kinetic transitions over the kinetic domains. We illustrate the advantage of this f...

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