Results 101 to 110 of about 2,739,977 (397)

Acoustical characteristic of empty fruit bunch (EFB) fibre with influence of sodium hydroxide treatment time and decay lifespan [PDF]

open access: yes, 2019
Research on natural fibres has gain much interest in recent years due to the sustaibability and avaibility in which demand for green renewable reinforced composites. Natural fibres can be considered as the alternative way to replace the synthetic fibre
Mat Wan, Lauren
core   +1 more source

Borate‐Water‐Based 3D‐Slime Interface Quasi‐Solid Electrolytes for Li‐ion Batteries

open access: yesAdvanced Materials, EarlyView.
This advanced material, composed of lithium borate, lithium salt, and water, is a quasi‐solid that can be handled in air and has a 3D‐conducting‐interface network (3D‐Slime‐Interface Quasi‐Solid Electrolytes: 3D‐SLISE). The 3D‐SLISE is nonflammable and can be used in lithium‐ion batteries, and its water solubility allows direct recycling of active ...
Yosuke Shiratori   +5 more
wiley   +1 more source

Biological and Biologically Inspired Functional Nanostructures: Insights into Structural, Optical, Thermal, and Sensing Applications

open access: yesAdvanced Materials, EarlyView.
Biological and biologically‐inspired functional nanostructures with structural, thermal, optical, and sensing applications are reviewed. The role of nanoscale features in biological materials on performance is described, and their blueprints are used for bio‐inspired nanomaterials, synthesized using advanced techniques (i.e., photolithography, bio ...
Chao Hsuan (Joseph) Sung   +15 more
wiley   +1 more source

Electrospinning nanofilms to improve sound absorption of flexible or rigid porous material

open access: yesResults in Engineering
To further enhance the sound absorption capabilities of porous materials, we employed electrospinning technology to prepare electrospinning nanofilms using polyvinyl butyral solution.
Nansha Gao   +5 more
doaj   +1 more source

Sound, Force and Light Induced Emissions from Er3+‐Mn2+ Doped ZnS/CaZnOS Heterostructure for Remote Temperature Monitoring via Photo‐ and Mechanoluminescence

open access: yesAdvanced Materials, EarlyView.
Er3⁺/Mn2⁺ co‐doped ZnS/CaZnOS heterostructures are developed for remote temperature and force/sound sensing. The material exhibits UV/NIR photoluminescence, with energy transfer influencing color. Mechanoluminescence intensity is measured against applied power. Temperature‐dependent photoluminescence enabled luminescence thermometry.
Marcin Runowski   +7 more
wiley   +1 more source

Sound Absorption Properties of Shredded Paper Wastes as Indoor Building Sound Absorber

open access: yesBioResources
The sound absorption properties of shredded paper wastes (SPW) were evaluated. Two impedance tubes (large and small) were used to measure the sound absorption coefficient of different thicknesses of SPW sound-absorber (20, 40, 60, 80, and 100 mm). As the
Eun-Suk Jang, Hee-Jun Park
doaj  

Atmospheric Propagation [PDF]

open access: yes
Reviewed here is the current state of knowledge with respect to each basic mechanism of sound propagation in the atmosphere and how each mechanism changes the spectral or temporal characteristics of the sound received at a distance from the source.
Daigle, Gilles A., Embleton, Tony F. W.
core   +1 more source

Design Strategies and Roles of Hydrogels for Sustainable Energy Conversion and Harvesting from Natural and Biological Environments

open access: yesAdvanced Materials, EarlyView.
This review examines hydrogel‐based technologies driven by environmental stimuli and emphasizes their unique contributions to energy conversion. It provides insights into design strategies and recent advancements in functional hydrogels, highlighting opportunities and challenges in this field.
Wanheng Lu   +5 more
wiley   +1 more source

Design of multi-layered porous fibrous metals for optimal sound absorption in the low frequency range

open access: yesTheoretical and Applied Mechanics Letters, 2016
We present a design method for calculating and optimizing sound absorption coefficient of multi-layered porous fibrous metals (PFM) in the low frequency range.
Wenjiong Chen   +3 more
doaj   +1 more source

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