Results 31 to 40 of about 19,059 (257)

The Effect of Al2 O3 Addition on the Thermal Diffusivity of Heat Activated Acrylic Resin [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2013
Aim: This study aimed at investigating the effect of adding 5% to 20% by weight aluminium oxide powder (Al2 O3 ) on thermal diffusivity of heat–polymerized acrylic resin. Material and Methods: Twenty five cylindrical test specimens with an embedded
Jyothi Atla   +7 more
doaj   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Thermal diffusivity of sintered 12CaO-7Al2O3 [PDF]

open access: yesScience of Sintering, 2003
The thermal diffusivity and some electrical transport properties of sintered 12CaO-7Al2O3 were determined using a photoacoustic method with a transmission detection configuration.
Nikolić Pantelija M.   +4 more
doaj   +1 more source

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

A simple laboratory flash apparatus for thermal diffusivity measurement: Modeling and application for composite material based on clay and straw

open access: yesCase Studies in Construction Materials, 2021
In this work. we have developed and tested a flash apparatus for thermal diffusivity measurement of building materials. After the test on homogeneous materials, this very inexpensive apparatus was then used to estimate the thermal diffusivity of some ...
Saad Raefat   +3 more
doaj   +1 more source

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

Regularity criteria for the two-and-half-dimensional magnetic Bénard system with partial dissipation, magnetic diffusion, and thermal diffusivity

open access: yesBoundary Value Problems, 2019
This paper concentrates on the global regularity of classical solution to the 212 $2\frac{1}{2}$D magnetic Bénard system with partial dissipation, magnetic diffusion, and thermal diffusivity (i.e., horizontal dissipation, horizontal magnetic diffusion ...
Liangliang Ma, Lei Zhang
doaj   +1 more source

Experimental study on effects of imidazolium-based ionic liquids on heat transfer characteristics of coal

open access: yesMeikuang Anquan, 2022
To investigate the influence of imidazolium-based ionic liquids(ILs) on the heat transfer characteristics of coal, the gas-fat coal from Ewirgol Coal Mine was selected, and [BMIM][BF4], [BMIM][NO3], [BMIM][I], [BMIM][PF6] and [BMIM][NTf2] were adopted to
LIU Dong, HU Letian
doaj   +1 more source

Photoacoustic thermal diffusion flowmetry

open access: yesBiomedical Optics Express, 2012
Thermal Diffusion Flowmetry (TDF) (also called Heat Clearance Method or Thermal Clearance Method) is a longstanding technique for measuring blood flow or blood perfusion in living tissues. Typically, temperature transients and/or gradients are induced in a volume of interest and the temporal and/or spatial temperature variations which follow are ...
Sheinfeld, Adi, Eyal, Avishay
openaire   +2 more sources

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

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