Results 111 to 120 of about 10,179,498 (326)

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Genesis of Low-Resistivity Shale Reservoirs and Its Influence on Gas-Bearing Property: A Case Study of the Longmaxi Formation in Southern Sichuan Basin

open access: yesApplied Sciences
To mitigate the exploration and development risks, it is necessary to have a deeper understanding of the formation mechanism and gas-bearing control factors of low-resistance shale reservoirs.
Xi Hu   +6 more
doaj   +1 more source

Outcrop of Ordovician Wufeng Formation-Silurian Longmaxi Formation in Qilong Village, Xishui, Guizhou

open access: yesYouqicang pingjia yu kaifa, 2022
As a systematic study of the Wufeng-Longmaxi Formation was carried out by paleontological comparison, thin section identification, scanning electron microscopy and Nitrogen Adsorption Method in Qilong Village outcrop, Xishui, Guizhou Province, the ...
LIU Shugen   +8 more
doaj  

Char quality and tar formation interdependence: First experiments in a new two-stage gasifier [PDF]

open access: yes, 2005
For small scale gasification for CHP purposes, it is of great importance that tar content in the gas remains below 10-50 mg/Nm3. Such low tar concentrations have been reported with staged gasification processes operated for long periods by TK Energi A/S (
Broust, François   +5 more
core  

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

PROPAGATION MODEL OF HARMFUL SUBSTANCES AND SENSIBLE HEAT EXCESS IN INDUSTRIAL PREMISES

open access: yesВестник Донского государственного технического университета, 2018
An unsteady three-dimensional mathematical model describing processes of convection-diffusion mass transfer of harmful substances and excess heat in the industrial premises with active ventilation is offered.
Besarion Ch. MESKHI   +4 more
doaj  

Molecular hydrogen deficiency in HI-poor galaxies and its implications for star formation

open access: yes, 2009
We use a sample of 47 homogeneous and high sensitivity CO images taken from the Nobeyama and BIMA surveys to demonstrate that, contrary to common belief, a significant number (~40%) of HI-deficient nearby spiral galaxies are also depleted in molecular ...
Alessandro Boselli   +29 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Realization of visualization multivariable prediction method for gas content based on grey system theory

open access: yesGong-kuang zidonghua, 2013
In view of problem of low reliability caused by single-factor gradient method for predicting gas content in coal mine, the paper proposed a method of visualization multivariable prediction for gas content based on grey system theory, and established ...
HAO Tian-xuan, ZHANG Hai-bo
doaj  

Adjustment of Coatings Morphology and Particle Distribution of Layered Silicates by Freeze‐Drying for Improved Gas Barriers

open access: yesAdvanced Engineering Materials, EarlyView.
Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes   +4 more
wiley   +1 more source

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