Results 21 to 30 of about 224,627 (303)

DECOMPOSITION KINETICS OF AMERICAN, CHINESE AND ESTONIAN OIL SHALES KEROGEN; pp. 167–183 [PDF]

Oil Shale, 2016
An investigation of the pyrolysis kinetics of American, Chinese and Estonian oil shales was conducted applying a non-isothermal thermo­gravi­metric analysis (TGA).
BIRGIT MAATEN, LAURI LOO, ALAR KONIST, DMITRI NEŠUMAJEV, TÕNU PIHU, INDREK KÜLAOTS   +5 more
doaj   +1 more source

Rheological behavior of rosin-sourced anhydride bio-epoxy resin system

Journal of Aeronautical Materials, 2021
Viscosity is the main rheology parameter of thermosetting resin matrix processing, which is an important factor effecting processing performance. The viscosity-temperature curves at dynamic states and viscosity-time curves at stead state were measured by
ZHANG Xufeng, LI Dihui, QI Xi, TONG Jifeng, YI Xiaosu   +4 more
doaj   +1 more source

Catalytic Pyrolysis of Spirulina platensis Residue (SPR): Thermochemical Behavior and Kinetics

International Journal of Technology, 2020
The pyrolysis characteristics of Spirulina platensis residue (SPR) with silica–alumina catalysts were investigated using thermogravimetric analysis (TGA).
Siti Jamilatun, Budhijanto, Rochmadi, Avido Yuliestyan, Muhammad Aziz, Jun-ichiro Hayashi, Arief Budiman   +6 more
doaj   +1 more source

Pre-exponential Factor in Semiconducting Vitamin A (Alcohol and Acetate) [PDF]

Bulletin of the Chemical Society of Japan, 1979
Abstract The semiconductive properties of vitamin A (alcohol and acetate) on adsorption of various vapors have been studied. The adsorbed vapors increase the semiconduction currents by several orders of magnitude and decrease the semiconduction activation energies.
Biswanath Mallik, Alpana Ghosh, T N Misra   +2 more
openaire   +1 more source

Effect of Frustrated Rotations on the Pre-Exponential Factor for Unimolecular Reactions on Surfaces: A Case Study of Alkoxy Dehydrogenation

, 2019
If theory is to be able to predict the rates of catalytic reactions over extended ranges of temperature and pressure, it must provide accurate rate constants for elementary reaction steps, including both the activation energy and pre-exponential factor ...
Lixin Sun (652460), Cynthia M. Friend (1313895), Robert J. Madix (1313886), Efthimios Kaxiras (1358043), Boris Kozinsky (5070920), Philippe Sautet (1268361), Wei Chen (23863)   +6 more
core   +2 more sources

Kinetic Analysis of Digestate Slow Pyrolysis with the Application of the Master-Plots Method and Independent Parallel Reactions Scheme

Molecules, 2019
The solid fraction obtained by mechanical separation of digestate from anaerobic digestion plants is an attractive feedstock for the pyrolysis process.
Pietro Bartocci, Roman Tschentscher, Ruth Elisabeth Stensrød, Marco Barbanera, Francesco Fantozzi   +4 more
doaj   +1 more source

Periodontal disease and pre-eclampsia: a systematic review [PDF]

, 2010
Systematic review on periodontal disease as a risk factor for pre ...
Kunnen, A., Frank Abbas, Pampus, M.G. van,, Jan G. Aarnoudse, van Doormaal, J.J., van Pampus, Maria, Abbas, F., Aarnoudse, J.G., van Pampus, M.G., van Doormaal, Jasper J., Jasper J. Van Doormaal, Marijke M. Faas, Kunnen, Alina, Alina Kunnen, Kunnen, A.,, Maria G. Van Pampus, Faas, M.M.,, Abbas, F.,, Aarnoudse, J.G.,, Abbas, Frank, Doormaal, J.J. van.,, Faas, M.M., Faas, Marijke M., Aarnoudse, Jan G.   +23 more
core   +1 more source

Non-Isothermal Kinetic Analysis of the Dehydroxylation of Kaolinite in Dynamic Air Atmosphere

Acta Technologica Agriculturae, 2017
A non-isothermal kinetic analysis of kaolinite dehydroxylation was carried out using thermogravimetric analysis on powder samples with heating rates from 1 to 30 °C・min-1 in a dynamic air atmosphere.
Ondro Tomáš, Húlan Tomáš, Vitázek Ivan   +2 more
doaj   +1 more source

Determination of Thermodynamic Parameters of Polylactic Acid by Thermogravimetry under Pyrolysis Conditions

Applied Sciences, 2021
In the present study, the thermodynamic parameters of Polylactic Acid (PLA) under conditions of thermal degradation were determined. The PLA material, previously sampled and characterized, was analyzed by dynamic thermogravimetry (TG) at heating rates of
Paul Palmay, Melissa Mora, Diego Barzallo, Joan Carles Bruno   +3 more
doaj   +1 more source

Biochemical characterization and three-dimensional structure analysis of the yeast cleavage and polyadenylation factor CPF [PDF]

, 2008
In eukaryotes, protein-encoding genes are transcribed in the nucleus by RNA polymerase II (RNAP II). Before the gene transcript (pre-mRNA) is transported to the cytoplasm and can function in translation, it has to undergo three specific maturation ...
Paguet, Bertrand
core   +1 more source