Results 81 to 90 of about 942 (215)

Shock wave propagation characteristics of aluminum‐containing explosive in corrugated steel‐lined tunnel

open access: yesDeep Underground Science and Engineering, EarlyView.
Aluminum‐enhanced afterburning renders AE explosives more hazardous than conventional ones. Corrugated steel linings reduce far‐field AE blast overpressure by ~50% through wave reflection and dissipation. The developed model accurately predicts peak pressure (<10% error) and arrival time (<3% error), supporting protective design.
Zhen Wang   +5 more
wiley   +1 more source

Effect of steel surface conditions on reinforcing steel corrosion in concrete exposed to marine environments

open access: yesMateriales de Construccion, 2005
Laboratory methods and experimental tests were deployed in the present study to evaluate corrosion in reinforced concrete exposed to marine environments.
E. Anzola   +6 more
doaj   +1 more source

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

Experimental research on bond behavior of high-strength reinforcement in unconfined fly ash-based geopolymer concrete

open access: yesCase Studies in Construction Materials
Geopolymer concrete (GPC) has emerged as an eco-friendly ‌alternative‌ to ordinary Portland cement (OPC) concrete in ‌recent years‌, due to its ‌superior‌ mechanical properties and durability.
Jian Yuan, Jiayu Xiao, Deqiang Huang
doaj   +1 more source

Experimental study on flexural behavior of bonded steel-concrete composite beams

open access: yesScientific Reports
To address the limitations of mechanical shear connectors, adhesives are used in this research as shear connectors of steel-concrete composite beams (SCCBs). Several groups of bending tests were conducted to compare the flexural behavior of bonded and mechanical SCCBs. Moreover, the results show that the failure modes of the bonded SCCBs mainly include
Junhu Shao   +5 more
openaire   +3 more sources

Investigation on the mechanical behavior of the multiple‐layered lining structure of a water conveyance tunnel with high internal water pressure

open access: yesDeep Underground Science and Engineering, EarlyView.
This study presents large‐scale similarity model testing (geometric ratio 3.6) of an innovative multiple‐layered lining system—comprising exterior precast segments, middle self‐compacting concrete, and an interior steel pipe—for high‐pressure (0.75 MPa) water conveyance tunnels.
Ramin Asadi   +4 more
wiley   +1 more source

Air Stability of Sulfide Solid Electrolytes: From Theoretical Insights to Practical Solutions

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This paper reviews research progress on the air stability of SSEs, covering their instability mechanisms and modification strategies, while outlining core challenges and future directions for practical applications. Sulfide solid electrolytes are pivotal for enabling high‐performance all‐solid‐state batteries due to their high ionic conductivity and ...
Hongbing Ding   +10 more
wiley   +1 more source

Modular Interfacial Engineering via Nanofiber‐Reinforced Hydrogels for Stabilizing Zn Anodes Toward High‐Performance Zn‐Based Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Inspired by reinforced concrete casting, a modular interfacial engineering strategy was developed by integrating a rigid polyacrylonitrile fiber skeleton with an ion‐regulating hydrogel matrix. This composite interface homogenizes Zn2+ flux, accelerates ion transport, and stabilizes Zn deposition while suppressing hydrogen evolution and corrosion ...
Zixuan Chen   +8 more
wiley   +1 more source

Bridging Policy Gaps in Transition Times: How Local Actors Navigate Low Policy Coherence for Advancing a Circular Built Environment

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT The construction sector is a major contributor to the climate crisis, accounting for over one‐third of global energy‐related CO2 emissions. In response, the European Commission identified the circular economy as a means of achieving green growth and prioritized the construction sector in its Circular Economy Action Plan.
A. (Angeline) Chartier   +1 more
wiley   +1 more source

New insights into epileptic spasm generation and treatment from the TTX animal model

open access: yesEpilepsia Open, EarlyView.
Abstract Currently, we have an incomplete understanding of the mechanisms underlying infantile epileptic spasms syndrome (IESS). However, over the past decade, significant efforts have been made to develop IESS animal models to provide much‐needed mechanistic information for therapy development.
John W. Swann   +2 more
wiley   +1 more source

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