Results 121 to 130 of about 1,265,505 (345)
Two-parameter boundary condition applied to transverse acoustic impedance of a Fermi liquid
, 2017 We discuss surface scattering in terms of bidirectional reflectance distribution function. We formulate a boundary condition that in addition to diffuse and specular reflection has tilted diffuse reflection.
Kuorelahti, J. A., Thuneberg, E. V.
core +1 more source
Advanced Materials, EarlyView.Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine +5 more
wiley +1 more source
Acoustophoretic Characterization and Separation of Blood Cells in Acoustic Impedance Gradients. [PDF]
Phys Rev Appl, 2023 Charan MR, Augustsson P.
europepmc +1 more source
Optimum wall impedance for spinning modes: A correlation with mode cut-off ratio [PDF]
A correlating equation relating the optimum acoustic impedance for the wall lining of a circular duct to the acoustic mode cut-off ratio, is presented.
Rice, E. J.
core +1 more source
Advanced Materials, EarlyView.This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi +12 more
wiley +1 more source
Acoustic Impedance Evaluation of the Polymer-Polymer Hybrid Composites as Insulator Building Materials. [PDF]
Polymers (Basel), 2023 Fahad BM, Al-Jadiri RSF.
europepmc +1 more source
Advanced Materials, EarlyView.Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu +14 more
wiley +1 more source
Impedance measurement using a two-microphone, random-excitation method [PDF]
The feasibility of using a two-microphone, random-excitation technique for the measurement of acoustic impedance was studied. Equations were developed, including the effect of mean flow, which show that acoustic impedance is related to the pressure ratio
Parrott, T. L., Seybert, A. F.
core +1 more source
Hybrid Liquid Metal Cathode Enables High‐Performance Intrinsically Stretchable OLEDs
Advanced Materials, EarlyView.We report a hybrid liquid metal (Hyb‐LM) cathode engineered via selective rupture of liquid metal particles (LMPs), forming a bilayer architecture with a surface liquid metal (LM) layer and underlying LMP layer, which has benefits of both LM and LMPs.
Wonbeom Lee +9 more
wiley +1 more source
Design principles of transducers with matching layers based on admittance measurements
Archives of Acoustics, 2014 Basing on modified Mason's equivalent circuit of an acoustic probe the authors carried out the computation of admittances and pulses reflected from the ideal reflector immersed in water.
G. ŁYPACEWICZ, E. DURIASZ
doaj