Results 91 to 100 of about 39,171 (345)

Influences of Compression Ratios on Sound Absorption Performance of Porous Nickel–Iron Alloy

open access: yesMetals, 2018
The improvement of sound absorption performance of porous metal is a focus of research in the field of noise reduction. Influences of compression ratios on sound absorption performance of a porous nickel–iron (Ni–Fe) alloy were investigated.
Panfeng Bai   +5 more
doaj   +1 more source

Investigation On The Role of Cavity and Slit of Cavity Resonators to Sound Absorption Behavior [PDF]

open access: yes, 2011
Slit resonator and also perforated resonator are few kind of room interior finishing. They act as sound absorbers. Gen-erally, they are constructed of at least three basic types of absorbers, such as porous, membrane and cavity compo-nents.These types of
Kristanto, Luciana, Susilo, Nugroho
core  

Ultrathin Acoustic Parity-Time Symmetric Metasurface Cloak [PDF]

open access: yes, 2018
Invisibility or unhearability cloaks have beenmade possible by using metamaterials enabling light or sound to flow around obstacle without the trace of reflections or shadows.
Cheng, Jian-chun   +7 more
core   +3 more sources

TLR Agonist Nano Immune Therapy Clears Peritoneal and Systemic Ovarian Cancer

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.
Intraperitoneal administration of immunogenic Toll‐like receptor agonist‐modified mesoporous silica nanoparticles leads to rapid internalization by ascites myeloid cells with trafficking to fat‐associated lymphoid clusters. Activation of myeloid cells counters suppressive immune mechanisms associated with peritoneal metastasis, leading to regional and ...
Ben Marwedel   +15 more
wiley   +1 more source

Nonlinear Optical Absorption in Nanoscale Films Revealed through Ultrafast Acoustics [PDF]

open access: green, 2022
Ievgeniia Chaban   +9 more
openalex   +1 more source

Classical wave experiments on chaotic scattering

open access: yes, 2005
We review recent research on the transport properties of classical waves through chaotic systems with special emphasis on microwaves and sound waves. Inasmuch as these experiments use antennas or transducers to couple waves into or out of the systems ...
Berry M V   +46 more
core   +1 more source

Modelling and directionally encoding the acoustics of a room [PDF]

open access: yes, 1998
Geometrical methods are often used to model the acoustic properties of a room, but are valid only for high frequencies. At low frequencies. diffraction and the effects of room modes cannot be neglected.
Howard, D M, Murphy, D T
core   +1 more source

Kidney Stone Dissolution By Tetherless, Enzyme‐Loaded, Soft Magnetic Miniature Robots

open access: yesAdvanced Healthcare Materials, EarlyView.
Wireless magnetic robots are developed for kidney stone dissolution. The robots navigate through a urinary tract model from bladder and ureter to renal pelvis with the help of external magnetic fields. The filaments are loaded with urease enzyme which catalyzes urea to carbon dioxide and ammonia, thereby increasing pH to basic regime and supporting ...
Afarin Khabbazian   +15 more
wiley   +1 more source

Performance of profiled single noise barriers covered with quadratic residue diffusers [PDF]

open access: yes, 2005
The paper describes an investigation about the acoustic performance of noise barriers with quadratic residue diffuser (QRD) tops, and with T-, Arrow-, Cylindrical and Y-shape profiles.
Lam, YW, Monazzam, M
core   +2 more sources

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