Results 81 to 90 of about 2,063,981 (308)

Decoupling Stable Cyclic Deformation From Defect Accumulation in Metals

open access: yesAdvanced Science, EarlyView.
Introducing amorphous nanoparticles into a metal matrix enables a cyclic deformation regime where strain hardening and defect accumulation are decoupled. These nanoparticles act as dislocation sinks and undergo reversible shear transformations, sustaining microstructural stability over millions of cycles.
Chenjun Ye   +9 more
wiley   +1 more source

Explicit-implicit XFEM for Hydraulic Fracturing with emphasis on transport models on curved crack surfaces

open access: yes, 2019
The eXtended Finite Element Method (XFEM) has developed to a standard tool in fracture mechanics. The method enriches the approximation space such that inner-element cracks are considered without loss of accuracy.
Fries, Thomas-Peter
core   +1 more source

Numerical Investigation of Influence of In-Situ Stress Ratio, Injection Rate and Fluid Viscosity on Hydraulic Fracture Propagation Using a Distinct Element Approach

open access: yesEnergies, 2016
Numerical simulation is very useful for understanding the hydraulic fracturing mechanism. In this paper, we simulate the hydraulic fracturing using the distinct element approach, to investigate the effect of some critical parameters on hydraulic ...
Bo Zhang   +5 more
doaj   +1 more source

Numerical Simulation on the Basic Rules of Multihole Linear Codirectional Hydraulic Fracturing

open access: yesGeofluids, 2020
Directional rupture is one of the most important and common problems in rock breaking engineering. The purpose of directional rock breaking can be effectively realized by using multihole linear codirectional hydraulic fracturing. In this paper, realistic
Weiyong Lu, Yonglong Wang, Xin Zhang
doaj   +1 more source

A Comprehensive Review on Additive Manufacturing of Smart Components: Technologies, Applications, and Future Scope

open access: yesAdvanced Intelligent Systems, EarlyView.
How can additive manufacturing enable components that sense, adapt, heal, and power themselves? This review synthesizes recent advances in smart functionalities, manufacturing technologies, and intelligent design strategies, revealing a pathway toward fully integrated, autonomous, and multifunctional systems across diverse engineering sectors. Additive
Aiswarya Rony   +3 more
wiley   +1 more source

Laboratory experiments on blockage removing and stimulation of CBM reservoirs by composite pulsating hydraulic fracturing of radial horizontal wells

open access: yesNatural Gas Industry B, 2019
It is a common phenomenon during CBM drilling and production that reservoir damage is not eliminated completely. In view of this, a technical idea of composite pulsating hydraulic fracturing of radial horizontal wells which is conducive to blockage ...
Shouceng Tian   +5 more
doaj   +1 more source

Hydraulic Fracturing ::A Guide to Environmental and Real Property Issues /

open access: yes, 2021
Hydraulic Fracturing identifies the major legal issues raised by hydraulic fracturing, including the transactional, regulatory, and litigation issues that are most relevant to the real estate and environmental law practitioner.
Hall, Keith., Wiseman, Hannah.
core  

The Key Technologies and Technological Evolution Mechanisms of Robotic Systems for Fracture Reduction Surgery

open access: yesAdvanced Intelligent Systems, EarlyView.
This review traces three decades of technological evolution in robot‐assisted fracture reduction systems, from early robotic concepts to clinically oriented platforms. Key advances in robotic architecture, navigation, path planning, interaction control, and surgical integration are summarized, while current translational challenges and future ...
Shaolong Kuang   +5 more
wiley   +1 more source

Analysis of Fracturing Pressure Data in Heterogeneous Shale Formations [PDF]

open access: yes, 2014
Existing techniques for the interpretation of real-time fracturing data assumes that fracture propagation is a continuous power function of time, and that fractures propagate smoothly over time.
Soliman, M.Y.   +4 more
core  

Farm labor scarcity and its uneven impacts on crop producers in the United States

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This study is the first to evaluate the impacts of farm labor scarcity on producers in the United States across different crop production systems. Between 2002 and 2017, we disentangle the effects of labor scarcity from the impacts of rising commodity demand, technological change, and supply of other inputs on labor market outcomes.
Srabashi Ray   +4 more
wiley   +1 more source

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