Results 141 to 150 of about 18,583 (260)

The impact of forced closure on proppant distribution of hydraulic fracturing in shale formations

open access: yesDeep Underground Science and Engineering, EarlyView.
Research findings demonstrate that implementing forced closure within shale formations can remarkably mitigate proppant settlement, concurrently increasing the effective propped surface area from 29.74% to 38.68%. Abstract Forced closure is widely used in conventional oil and gas reservoirs to promote uniform proppant placement.
Tongxuan Gu   +3 more
wiley   +1 more source

Numerical simulation study on the evolution of the temperature field and frozen wall in fractured rock mass

open access: yesDeep Underground Science and Engineering, EarlyView.
The evolution of the temperature field and frozen wall under different fracture conditions was examined by an artificial ground freezing‐based thermal‐hydraulic coupled model. It was observed that fracture inclination affects the interaction extent of freezing pipes and fracture, while phase transition extent is the dominant factor for heat transfer in
Chenyi Zhang   +9 more
wiley   +1 more source

Etching‐Expanded Anode: A Method to Improve the Reduction Efficiency of Vacuum Thermal Reduction of Spent Anode to Spent Ternary Cathode

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Etch‐expanded lithium ion battery anode vacuum carbon thermal reduction lithium ion battery anode flow chart. Vacuum carbon thermal reduction has been widely studied for the recovery of ternary lithium batteries, and there are many choices for the type of carbon to be reduced in this method, such as expensive carbon nanotubes and inexpensive battery ...
Jun Li   +5 more
wiley   +1 more source

IS THERE A PLACE FOR HIGH-RESOLUTION ANOSCOPY IN THE DIAGNOSTICS OF INFLAMMATORY CHANGES IN PATIENTS WITH CHRONIC HEMORRHOIDS?

open access: hybrid, 2018
A. G. Khitaryan   +6 more
openalex   +2 more sources

Directed Hole Localization Stabilizing Interfacial Sulfur Species to Boost α‐C–H Activation for Selective Biomass Photo‐oxidation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Efficient α‐C–H bond activation and directional conversion for selective biomass photo‐oxidation are achieved by integrating polarization and interface engineering strategies in P‐doped ZnIn2S4 polar photocatalysts, which leverage hole localization and stable interfacial sulfur species, endowing bio‐based HMF at 94.4% conversion with 94.5% selectivity ...
Yinyin He   +3 more
wiley   +1 more source

Choise of a treatment method of hemorrhoids and paraproctitis in patients with patological scarring susceptibility [PDF]

open access: bronze, 2014
Alexandr Muravyev   +8 more
openalex   +1 more source

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