Results 81 to 90 of about 480,456 (257)

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

open access: yesAdvanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang   +7 more
wiley   +1 more source

Optimizing Fiber-Reinforced Geopolymer Concrete for Sustainable Construction Practices [PDF]

open access: yesE3S Web of Conferences
Concrete production is a major contributor to environmental challenges, including high carbon dioxide emissions and depletion of natural resources.
T Porpadham, S Thirugnanasambandam
doaj   +1 more source

Coupled Above‐ and Belowground Ecosystem Stability Worldwide

open access: yesAdvanced Science, EarlyView.
Are the worlds above and below our feet in sync? This global exploration reveals an entangled fate between above‐ and belowground ecosystem stability. It identifies arid regions as hotspots for this coupling and highlights temperature stability as a vital safeguard for maintaining ecosystem balance across our warming planet.
Zexin Meng   +18 more
wiley   +1 more source

Numerical Analysis on Variation of Dynamic Response of Girder Bridges with Torsional Reinforcement Panels

open access: yesMATEC Web of Conferences, 2015
The dynamic flexural behaviour of the railway bridge is influenced by its torsional behaviour. Especially, in the case of girder railway bridges, the dynamic response tends to amplify when the natural frequency in flexure (1st vibration mode) is close to
Kang Jae-Yoon   +3 more
doaj   +1 more source

A parametric study on a RC frame based on “PUSHOVER” analysis [PDF]

open access: yes, 2009
Three commercial software packages (SAP 2000, SeismoStruck and MIDAS/CIVIL) universally used in the design of civil engineering structures, are applied on a parametric study of pushover analyses of a RC frame of an office building under a few ...
Barros, Rui   +2 more
core  

Fire design in safety engineering: likely fire curve for people’s safety [PDF]

open access: yes, 2018
The present study analyses fire design settings according to Fire Safety Engineering (FSE) for the simulation of fire in civil activities and compares these simulations developed using natural and analytic fire curves.
Grossi, Luca   +4 more
core   +1 more source

Breaking the Toughness‐Stretchability Trade‐Off in Hydrogels with Dynamic Hydrogen Bonding

open access: yesAdvanced Science, EarlyView.
A novel nanocomposite hydrogel architecture overcomes the inherent conflict between toughness and stretchability by integrating uniformly dispersed aminopropyl‐hybrid‐phyllosilicate nanosheets within a polyacrylamide matrix. This design leverages a dynamic hydrogen‐bonding network to facilitate efficient energy dissipation and self‐recovery.
Yining Gao   +3 more
wiley   +1 more source

Numerical Analysis of Blast Behavior for Non-ideal Explosive ANFO in Shock-Tube Test

open access: yesInternational Journal of Concrete Structures and Materials
In an explosion test using a shock tube, the behavior of pressure waves can be reproduced with high reliability. However, the explosion in a shock tube occurs in a confined space.
Hyun-Seop Shin   +3 more
doaj   +1 more source

3D printed concrete components and structures: an overview

open access: yesSustainable Structures, 2021
This paper aims to present an overview and explore components or structures suitable for 3D printed concrete. Most traditional structural forms are not well suitable for 3D printed concrete.
Jianzhuang Xiao   +3 more
doaj   +1 more source

Applied and research based performance indicator database for highway bridges across Europe [PDF]

open access: yes, 2017
Publicado em "Life-cycle of engineering systems: emphasis on sustainable civil infrastructure: proceedings of the Fifth International Symposium on Life-Cycle Civil Engineering (IALCCE 2016), ISBN 978-1-138-02847-0"Structural codes provide several ...
Bergmeister, Konrad   +3 more
core  

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