Results 111 to 120 of about 2,739,977 (397)

Effects of fiber motion on the acoustic behavior of an anisotropic, flexible fibrous material [PDF]

open access: yes
The acoustic behavior of a flexible fibrous material was studied experimentally. The material consisted of cylindrically shaped fibers arranged in a batting with the fibers primarily aligned parallel to the face of the batting.
Dahl, Milo D.   +2 more
core   +1 more source

The Resonator Banjo Resonator, part 2: What makes them really crack? [PDF]

open access: yes, 2015
A simple experiment quantifies the difference between the sound production of a banjo with and without a resonator back. Driven by a small tweeter mounted inside the pot, for frequencies above about 4500 Hz, the produced external sound is 6 to 10 dB ...
Politzer, David
core   +1 more source

Autonomous Implants

open access: yesAdvanced Materials, EarlyView.
An ideal implant should mimic native tissues such that it can integrate, sense, heal, and continue to function, i.e., be autonomous. Although early, there are good steps taken in this way, e.g., the development of stimuli‐responsive, self‐powering, self‐actuating, self‐healing, self‐regenerating, and self‐aware implants.
Jagan Mohan Dodda   +5 more
wiley   +1 more source

Unveiling the Electrolyte and Solid Electrolyte Interphase in Sodium Ion Batteries: Mechanisms, Progress, and Perspectives

open access: yesAdvanced Materials, EarlyView.
This review summarizes the recent advances in sodium‐ion battery electrolytes (including organic, aqueous, gel, ionic liquid, and solid‐state types) and their influence on the solid electrolyte interphase (SEI). It discusses SEI formation, aging, and optimization, as well as cases where no SEI forms, providing insights into the critical relationship ...
Meng Li   +8 more
wiley   +1 more source

A microscopic description of sound absorption in the atmosphere [PDF]

open access: yes
The various mechanisms which contribute to sound absorption in the atmosphere are identified and a technique for computing the contribution from each is presented.
Bass, H. E.
core   +1 more source

Sound absorption coefficient of wet gap graded asphalt mixtures [PDF]

open access: yes, 2010
Acoustic absorption properties of materials have often been used to reduce the generation and propagation of sound. The research carried out in this paper deals with sound absorption in relation to road surface layers.
Freitas, Elisabete F.   +3 more
core  

Validity of the linear viscoelastic model for a polymer cylinder with ultrasonic hysteresis-type absorption in a nonviscous fluid

open access: yes, 2016
A necessary condition for the validity of the linear viscoelastic model for a (passive) polymeric cylinder with an ultrasonic hysteresis-type absorption submerged in a non-viscous fluid requires that the absorption efficiency is positive (Qabs > 0 ...
Fellah, Z. E. A., Mitri, F. G.
core   +2 more sources

Thermally Drawn Multifunctional All‐Hydrogel Fibers for Anti‐Fibrotic and Multimodal Neural Interfaces

open access: yesAdvanced Materials, EarlyView.
Hydrogels demonstrate material properties that mimic the mechanical and chemical environments of biological tissues. Yet, they face challenges during their integration into 3D interfaces. By identifying a class of thermoplastic hydrogels, a strategy is developed to pattern hydrogels in thermally drawn fibers.
Changhoon Sung   +13 more
wiley   +1 more source

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