Results 101 to 110 of about 2,063,981 (308)

Experimental Study to Quantify Fracture Propagation in Hydraulic Fracturing Treatment

open access: yes, 2022
Hydraulic fracturing plays an important role in the commercial development of unconventional oil and gas, which is directly related to the production of oil and gas wells.
Huawen Yu (13154191)   +5 more
core   +1 more source

Elucidating the Interplay Between Structure and Electrochemical Behavior in Lignin‐Based Polymer Electrolytes for Potassium Batteries

open access: yesBattery Energy, Volume 4, Issue 2, March 2025.
Three biobased membranes are synthesized by crosslinking oxidized Kraft lignin with poly(ethylene glycol) diglycidyl ether of increasing molecular weights. After incorporation of solvated potassium salts, potassium batteries including these biobased gel polymer electrolytes are able to deliver a maximum specific capacity at 0.05 A g−1 as high as 130 ...
Giuseppe Pascuzzi   +5 more
wiley   +1 more source

Investigation into Influences of Hydraulic Fracturing for Hard Rock Weakening in Underground Mines

open access: yesApplied Sciences
The long overhanging distance of hard roofs and long-collapse steps induces a large area of suspension on the working face in underground coal mines, resulting in excessive pressure and deformation on the surrounding rocks of the adjacent roadway in the ...
Xu Cao, Saisai Wu, Qingyuan He
doaj   +1 more source

Numerical Simulation of Hydraulic Fracturing in Earth and Rockfill Dam Using Extended Finite Element Method

open access: yesAdvances in Civil Engineering, 2018
Hydraulic fracturing is one of the most important factors affecting the safety of earth and rockfill dam. In this paper, the extended finite element method (XFEM) is used to simulate the hydraulic fracturing behavior in an actual high earth and rockfill ...
Enyue Ji   +4 more
doaj   +1 more source

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

open access: yesChemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler   +3 more
wiley   +1 more source

Optimization and application of hydraulic fracture propagation in carbonaceous and siliceous shales of marine-continental transition facies

open access: yesMeikuang Anquan
Aiming at the differences in mechanical properties of carbonaceous and siliceous shale rocks in transitional facies, a hydraulic fracturing model was established using the finite element ABAQUS numerical simulation software. The influence of lithological
Bing LI   +4 more
doaj   +1 more source

Hydraulic fracturing and active coarsening position the lumen of the mouse blastocyst

open access: yesScience, 2019
The making of a lumen During the early days of mammalian development, the formation and positioning of a fluid-filled lumen, the blastocoel, defines the first axis of embryo symmetry. Dumortier et al.
Julien G Dumortier   +6 more
semanticscholar   +1 more source

Worker exposure to silica during hydraulic fracturing [PDF]

open access: yes
"Hydraulic fracturing or 'fracking' is a process used_to 'stimulate' well production in the oil and gas industry. It is not a new process, but its use has increased significantly in the last 10 years because_of new horizontal drilling and multi-stage ...

core  

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

open access: yesChemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel   +5 more
wiley   +1 more source

What good is Linear Elastic Fracture Mechanics in Hydraulic Fracturing

open access: yes, 2019
Fluid-driven fracture presents an interesting case of crack elasticity and fracture propagation nonlinearly coupled to fluid flow. With the exceptions of a few numerical studies, previous hydraulic fracture modeling efforts have been based on the premise
Garagash, Dmitry
core   +1 more source

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