Results 51 to 60 of about 224,627 (303)

KINETIC STUDY OF THE ENZYME CONVERSION OF STEAM EXPLODED PAULOWNIA TOMENTOSA TO GLUCOSE

BioResources, 2011
Paulownia Tomentosa was pretreated by steam explosion. The cellulase complex NS 50013 and the β-glucosidase NS 50010 of Novozymes AS were used for the enzymatic conversion of cellulose to glucose.
Greta Radeva,, Ivo Valchev,, Stoiko Petrin,, Eva Valcheva,, Petya Tsekova   +4 more
doaj  

Investigation of the First Hydrogenation of LaNi₅

Reactions
The first hydrogenation of most metal hydrides is a lengthy process that usually requires high pressure and temperature. This, in turn, significantly increases the production cost of metal hydrides.
Salma Sleiman, Samaneh Shahgaldi, Jacques Huot   +2 more
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Comparison of the dehydration Kinetics of solid state compounds of 2-methoxybenzylidenepyruvate with some Divalent metal ions

Eclética Química, 2018
Divalent metal complexes of ligand 2-methoxybenzylidenepyruvate with Fe, Co, Ni, Cu and Zn as well as sodium salt were synthesized and investigated in the solid state.
Marcelo Kobelnik, Clóvis Augusto Ribeiro, Diógenes dos Santos Dias, Gisele Aparecida Bernabé, Marisa Spirandeli Crespi   +4 more
doaj   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Kinetics of thermal decomposition of sodium hexafluorosilicate under isothermal conditions

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук
The results of an experimental study of the thermal decomposition of sodium hexafluorosilicate Na2SiF6, performed under isothermal conditions at temperatures of 600, 700, 800 and 900 °C, are discussed. It is shown that the kinetics of this process can be
S. V. Vasilevich, D. V. Degterov, S. D. Yukhnevich   +2 more
doaj   +1 more source

Pre-exponential factor for the crystallization of some chalcogenide glasses: applicability of Meyer-Neldel rule

, 2006
In the present paper, we report the compensation effect for the crystallization of different binary and ternary systems of some chalcogenide glasses.
N. Mehta, A. Kumar, D. Kumar
core   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

Internal energy change and activation energy effects on Casson fluid

AIP Advances, 2020
This paper examines the steady-state momentum heat and mass transfer flow of a Casson fluid flow in the existence of a pre-exponential factor. The velocity of the fluid over a vertical stretched pin changes linearly with the axial distance when a Casson ...
T. Salahuddin, Nazim Siddique, Maryam Arshad, I. Tlili   +3 more
doaj   +1 more source

Effect of ultrasonic field on isothermal kinetics of fullerene polyhydroxylation [PDF]

Science of Sintering, 2016
The isothermal kinetics of fullerene polyhydroxylation under ultrasonic field was investigated. The isothermal kinetic curves of fullerene polyhydroxylation at different temperatures ranging from 293 K to 313 K were determined. By application of
Gigov Mihajlo, Adnađević Borivoj, Jovanović Jelena   +2 more
doaj   +1 more source