Results 141 to 150 of about 68,786 (306)

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Shear Bond Strength and Mode of Failure of Polypropylene Fibers in Orthodontic Flash-Free Adhesive. [PDF]

open access: yesPolymers (Basel), 2022
Chaimaungchuen K   +3 more
europepmc   +1 more source

Electrolyte management in porous battery components. Static measurements [PDF]

open access: yes
The interaction between the porous hydrogen and nickel electrodes and microporous separator with respect to electrolyte management in nickel/hydrogen cells has been investigated.
Abbey, K. M., Britton, D. L.
core   +1 more source

Uniaxial compressive strength prediction and ratio parameter optimization of titanium tailings composite backfill materials using intelligent hybrid models

open access: yesDeep Underground Science and Engineering, EarlyView.
Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley   +1 more source

The effect of addition of untreated and oxygen plasma treated polypropylene fibers on some properties of heat cured acrylic resin

open access: yesJournal of Baghdad College of Dentistry, 2013
Background: The polymethyl methacrylate is the most reliable material for the construction of complete and partial dentures, despite satisfying esthetic demand itsuffered from having unsatisfactory properties like impact strength and transverse strength.
Waffaa I Mohammed, Intisar J Ismail
doaj  

Residual Mechanical Properties and Durability of High-Strength Concrete with Polypropylene Fibers in High Temperatures. [PDF]

open access: yesMaterials (Basel), 2022
Resende HF   +10 more
europepmc   +1 more source

Circular and Bio‐Sourced Polymers for Energy Applications: Natural Feedstocks, Recycling, and Upcycling Routes

open access: yesEcoEnergy, EarlyView.
This review provides a critical comparative analysis of circular and bio‐sourced polymers for energy storage, systematically evaluating natural feedstocks alongside recycling and upcycling strategies for battery components. Key structure–property–performance relationships and inherent trade‐offs between sustainability metrics and electrochemical ...
Priyank Sinha   +3 more
wiley   +1 more source

Monodisperse High‐Entropy Metal Oxide Nanoparticles Encapsulated Within 2D Porous Carbon Sheets for Enhanced Catalytic Activity in Lithium–Sulfur Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study synthesizes monodisperse oxide nanoparticles with abundant ionic vacancies encapsulated in 2D porous carbon sheets via pyrolysis of a high‐entropy precursor, constructing a cross‐scale catalytic interface. It enables Li‐S batteries with a high capacity of 761 mAh g−1 at 3 C and retains 80.44% capacity after 1000 cycles at 1 C.
Zeyu Xue   +14 more
wiley   +1 more source

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