Results 31 to 40 of about 57,372 (309)

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Big Data, Small Island: Earth Observations for Improving Flood and Landslide Risk Assessment in Jamaica

open access: yesGeosciences, 2023
The Caribbean region is highly vulnerable to multiple hazards. Resultant impacts may be derived from single or multiple cascading risks caused by hydrological-meteorological, seismic, geologic, or anthropological triggers, disturbances, or events ...
Cheila Avalon-Cullen   +3 more
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

open access: yesAdvanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal   +3 more
wiley   +1 more source

A Model for mobile phone tower strength and coverage for survival in disaster condition [PDF]

open access: yesMuṭāli̒āt-i Mudīriyyat-i Ṣan̒atī, 2019
Mobile phone towers strength and coverage after happening natural disaster are one of the most important issues in set covering. Every day advances and developments of mobile phone technology have made the telecommunication industry and transferring ...
حدیثه اکبرپور   +3 more
doaj   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

Resilient Response in Coastal Urban Planning Based on Ecosystem-Based Disaster Risk Reduction: A Case Study of Compound Rainstorm and Heatwave Disaster Risks in Shanghai

open access: yesFengjing Yuanlin
ObjectiveUrban areas are increasingly vulnerable to compound rainstorm and heatwave (CRH) disaster risks. Existing research primarily treats rainstorms and heatwaves as isolated risks, resulting in a limited understanding of CRH dynamics and insufficient
Mingyang BO, Daixin DAI, Wandi LIAO
doaj   +1 more source

Functional exercise to test the response measures of the emergency medicine department to the COVID-19 pandemic in a tertiary center in Jeddah, Saudi Arabia

open access: yesSaudi Journal of Emergency Medicine, 2021
Background: In response to the coronavirus disease 19 (COVID-19) pandemic, a new set of rapid measures for containment was necessary to deal with the medical emergency, and emergency services are a vital part of this response. However, if poorly handled,
Ghada A. Merdad   +3 more
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

open access: yesAdvanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil   +13 more
wiley   +1 more source

Pathway for County-Level Territorial Spatial Master Planning Oriented Toward Safety and Resilience Goals: A Case Study of Suning County, Hebei Province

open access: yesFengjing Yuanlin
ObjectiveAgainst the backdrop of intensifying global climate change, interlaced disaster risks, and ongoing urbanization, county-level units have gradually emerged as a key platform for new urbanization.
Xiaotong REN, Peng ZENG
doaj   +1 more source

Bioinspired Mechanically Robust Organic–Inorganic Hybridized Bio‐Adhesives With up to 50% Inorganic Components by Bi‐Continuous Phase Engineering

open access: yesAdvanced Functional Materials, EarlyView.
A robust plant protein adhesive was prepared by fabricating a bi‐continuous organic–inorganic hybrid structure. Compared with traditional organic–inorganic hybrid adhesives, the addition amount of inorganic phase is increased from 0.2%–3.0% to 50%, and the strength and toughness are increased by 6 and 121 times, respectively.
Zheng Liu   +10 more
wiley   +1 more source

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