Results 51 to 60 of about 1,281,209 (384)
Evolution of the Pseudo-Components of Heavy Oil during Low Temperature Oxidation Processes
Energies, 2022 Heavy oil was divided into different pseudo-components according to their boiling ranges through a real-boiling point distillation process, and the oxidation products for pseudo-components with a boiling range higher than 350 °C were systematically ...
Renbao Zhao +7 more
doaj +1 more source
Metals, 2016 The damaged K465 nickel-based superalloy parts were repaired by laser forming repair technology. The cracking characteristics and grain boundary liquation in heat affected zones were investigated by optical microscopy (OM), scanning electron microscopy ...
Qiuge Li +5 more
doaj +1 more source
Fluid catalytic cracking: recent developments on the grand old lady of zeolite catalysis
Chemical Society Reviews, 2015 Fluid catalytic cracking (FCC) is one of the major conversion technologies in the oil refinery industry, and the largest commercial catalytic process that uses zeolite materials.
E. Vogt, B. Weckhuysen
semanticscholar +1 more source
Cracking Piles of Brittle Grains
, 1998 A model which accounts for cracking avalanches in piles of grains subject to external load is introduced and numerically simulated. The stress is stochastically transferred from higher layers to lower ones.
C. C. Mounfield +30 more
core +1 more source
Cracking and Toughening Mechanisms in Nanoscale Metallic Multilayer Films: A Brief Review
Applied Sciences, 2018 Nanoscale metallic multilayer films (NMMFs) have captured scientific interests on their mechanical responses. Compared with the properties of monolithic films, multilayers possess unique high strength as the individual layer thickness reduces to the ...
Qing Zhou +4 more
doaj +1 more source
Low velocity impact modeling in composite laminates capturing permanent indentation [PDF]
, 2012 This paper deals with impact damage and permanent indentation modeling. A numerical model has been elaborated in order to simulate the different impact damage types developing during low velocity/low energy impact.
Barrau, Jean-Jacques +2 more
core +4 more sources
Heat-Affected-Zone Liquation Cracking in Welded Cast Haynes® 282®
Metals, 2019 Varestraint weldability testing and Gleeble thermomechanical simulation of the newly developed cast form of Haynes® 282® were performed to understand how heat-affected-zone (HAZ) liquation cracking is influenced by different preweld heat ...
Sukhdeep Singh, Joel Andersson
doaj +1 more source
Computational methods of mass transport in concrete under stress and crack conditions: A review
Journal of Intelligent Construction, 2023 Currently, the durability of cement-based composites is primarily influenced by the presence and transport of corrosive fluids. In structural concrete, various factors such as mechanical loads and drying shrinkage can lead to the formation of cracks ...
Xiaojie Sun +4 more
doaj +1 more source
Cracking of Charged Polytropes with Generalized Polytropic Equation of State
, 2016 We discuss the occurrence of cracking in charged anisotropic polytropes with generalized polytropic equation of state through two different assumptions; (i) by carrying out local density perturbations under conformally flat condition (ii) by perturbing ...
Azam, M., Mardan, S. A.
core +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source