Results 61 to 70 of about 429,065 (303)

Effect of explosive detonation velocity on the degree of rock pre-fracturing during blasting

open access: yesГорные науки и технологии
At many quarries for the extraction of building stone there is a problem of increased output of fines after all stages of crushing and grinding, which leads to a decrease in the economic performance of mining enterprises.
Sergei V. Khokhlov   +3 more
doaj   +1 more source

Prevention of osteoporotic refractures in regional Australia [PDF]

open access: yes, 2017
Objective: Clinical guidelines recommend that patients who sustain a minimal trauma fracture (MTF) should receive a bone mineral density (BMD) scan and bisphosphonate (or equivalent) therapy if diagnosed with osteoporosis.
Davidson, E   +4 more
core   +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

Three-dimensional quantitative fracture analysis of tight gas sandstones using industrial computed tomography

open access: yesScientific Reports, 2017
Tight gas sandstone samples are imaged at high resolution industrial X-ray computed tomography (ICT) systems to provide a three-dimensional quantitative characterization of the fracture geometries.
Jin Lai   +7 more
doaj   +1 more source

Quantitative multiparameter prediction of fault-related fractures: a case study of the second member of the Funing Formation in the Jinhu Sag, Subei Basin

open access: yesPetroleum Science, 2018
In this paper, the analysis of faults with different scales and orientations reveals that the distribution of fractures always develops toward a higher degree of similarity with faults, and a method for calculating the multiscale areal fracture density ...
Jing-Shou Liu   +5 more
doaj   +1 more source

Microstructural evolution and fatigue performance of dissimilar solid-state joints of SUS316L and SUS410

open access: yesJournal of Materials Research and Technology, 2022
Dissimilar stainless steels 316L (SUS316L) and SUS410 in a cylindrical butt configuration are solid-state joined along the cylinder axis by electrically assisted pressure joining (EAPJ).
Shengwei Zhang   +7 more
doaj   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

Bone Mineral Density in Girls with Forearm Fractures

open access: yesJournal of Bone and Mineral Research, 1998
Abstract In childhood, the most common site of fracture is the distal forearm. To determine whether young girls with these fractures have low bone density more commonly than fracture-free controls, we measured bone density at the radius, spine, hip, and whole body and total body bone mineral content, lean tissue mass, and fat mass by ...
A, Goulding   +5 more
openaire   +2 more sources

Phase field approximation of cohesive fracture models [PDF]

open access: yes, 2014
We obtain a cohesive fracture model as a $\Gamma$-limit of scalar damage models in which the elastic coefficient is computed from the damage variable $v$ through a function $f_k$ of the form $f_k(v)=min\{1,\varepsilon_k^{1/2} f(v)\}$, with $f$ diverging ...
Conti, Sergio   +2 more
core  

Understanding fast macroscale fracture from microcrack post mortem patterns [PDF]

open access: yes, 2011
Dynamic crack propagation drives catastrophic solid failures. In many amorphous brittle materials, sufficiently fast crack growth involves small-scale, high-frequency microcracking damage localized near the crack tip.
Buehler   +11 more
core   +5 more sources

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