Results 91 to 100 of about 3,424,176 (347)

Research on Mechanical Properties of Steel Tube Concrete Columns Reinforced with Steel–Basalt Hybrid Fibers Based on Experiment and Machine Learning

open access: yesBuildings
In this paper, a new type of combined column, square steel tube hybrid steel–basalt fiber reinforced concrete column (BSFCFST), is proposed for the first time, and a new hybrid machine learning model, NRBO-XGBoost, is proposed to predict the axial ...
Bohao Zhang, Xiao Xu, Wenxiu Hao
doaj   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

open access: yesAdvanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey   +12 more
wiley   +1 more source

Investigation of Free Vibration Behavior for Composite Sandwich Beams with a Composite Honeycomb Core

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ
The purpose of the current research is to determine the effect of fiber type, volume ratio, and matrix type on the vibration properties of sandwich beams made of composite face sheet and core. The typical sandwich structure consists of three layers: face
Zainab Majid Jasim   +1 more
doaj   +1 more source

Preliminary burn and impact tests of hybrid polymeric composites [PDF]

open access: yes
Free graphite fibers released into the environment from resin matrix composite components, as a result of fire and/or explosion, pose a potential hazard to electrical equipment.
Brewer, W. D., Tompkins, S. S.
core   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Dynamic Splitting Tensile Behavior of Hybrid Fibers-Reinforced Cementitious Composites: SHPB Tests and Mesoscale Industrial CT Analysis

open access: yesBuildings
Building structures are inherently susceptible to damage from extreme dynamic loads, while conventional concrete exhibits inadequate tensile resistance.
Xiudi Li   +4 more
doaj   +1 more source

Inactivating SARS‐CoV‐2 Virus with MOF‐Composites as Smart Face Masks

open access: yesAdvanced Functional Materials, EarlyView.
In situ preparation and functionalization of MOF@Cotton fabrics as smart face masks for the immobilization of proteins and inactivation viruses, such as SARS‐CoV‐2. Abstract The significant impact of the SARS‐CoV‐2 (COVID‐19) pandemic outbreak on people's lives has highlighted the urgent need for effective personal protective equipment.
Romy Ettlinger   +9 more
wiley   +1 more source

Computational simulation of intermingled-fiber hybrid composite behavior [PDF]

open access: yes
Three-dimensional finite-element analysis and a micromechanics based computer code ICAN (Integrated Composite Analyzer) are used to predict the composite properties and microstresses of a unidirectional graphite/epoxy primary composite with varying ...
Chamis, Christos C., Mital, Subodh K.
core   +1 more source

Region‐to‐Region Unidirectional Connection In Vitro Brain Model for Studying Directional Propagation of Neuropathologies

open access: yesAdvanced Functional Materials, EarlyView.
A unidirectional cerebral organoid–organoid neural circuit is established using a microfluidic platform, enabling controlled directional propagation of electrical signals, neuroinflammatory cues, and neurodegenerative disease–related proteins between spatially separated organoids.
Kyeong Seob Hwang   +9 more
wiley   +1 more source

Mechanical Properties of Recycled Concrete with Hybrid Waste Polypropylene Fibers

open access: yesRenmin Zhujiang, 2020
This paper analyzes the basic mechanical properties of recycled concrete by changing themixing ratio of waste polypropylene fiber and basalt fiber. The results show that the compressivestrength of recycled concrete decreases in varying degrees with the ...
YANG Chengzhi, PEI Changchun
doaj  

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