Results 71 to 80 of about 84,329 (313)
Multi Reflection of Lamb Wave Emission in an Acoustic Waveguide Sensor
Sensors, 2013 Recently, an acoustic waveguide sensor based on multiple mode conversion of surface acoustic waves at the solid—liquid interfaces has been introduced for the concentration measurement of binary and ternary mixtures, liquid level sensing, investigation of
Leonhard Michael Reindl +5 more
doaj +1 more source
Detection of cracks in metal sheets using pulsed laser generated ultrasound and EMAT detection [PDF]
, 2011 A pulsed Nd: YAG laser with an approximately Gaussian beam shape is directed onto the surface of an aluminium sheet at an energy density below which damage by laser ablation occurs, generating Lamb waves in the sheet.
Dixon, S. +3 more
core +1 more source
Advanced Materials, EarlyView.A transparent, deformable stevia–PVA hydrogel triboelectric nanogenerator delivers significantly enhanced mechanical strength and electrical output through biomimetic hydrogen‐bonded networks. Coupled with machine learning–assisted signal recognition, the self‐powered hydrogel enables accurate human‐motion sensing for intelligent wearable and IoT ...
Thien Trung Luu +5 more
wiley +1 more source
Acoustic energy harvesting using phononic crystal fiber with conical input
Scientific ReportsIn this paper, a novel phononic crystal fiber with conical input is introduced for coupling environmental acoustic waves to the fiber core. Environmental acoustic waves can be focused and coupled to the core through conical input.
Farzaneh Motaei, Ali Bahrami
doaj +1 more source
Spectrum of the seismic-electromagnetic and acoustic waves caused by seismic and volcano activity [PDF]
Natural Hazards and Earth System Sciences, 2005 Modeling of the spectrum of the seismo-electromagnetic and acoustic waves, caused by seismic and volcanic activity, has been done. This spectrum includes the Electromagnetic Emission (EME, due to fracturing piezoelectrics in rocks) and the Acoustic ...
S. Koshevaya +4 more
doaj
Nonlinear acoustic–gravity waves
Journal of Plasma Physics, 2009 AbstractPrevious results on nonlinear acoustic–gravity waves are reconsidered. It turns out that the mathematical techniques used are somewhat similar to those already adopted by the plasma physics community. Consequently, a future interaction between physicists in different fields, e.g. in meteorology and plasma physics, can be very fruitful.
Stenflo, L., Shukla, P.K.
openaire +5 more sources
Advances in Magnesium‐Based Thermoelectrics: A Critical Review
Advanced Materials, EarlyView.Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang +5 more
wiley +1 more source
, 2011 Copyright @ 2011 Sage Publications LtdSmart structures are components used in engineering applications that are capable of sensing or reacting to their environment in a predictable and desired manner.
Lawrie, Jane B. +5 more
core +1 more source
Detecting natural crack initiation and growth in slow speed shafts with the Acoustic Emission technology [PDF]
, 2009 This paper presents results of an experimental investigation to assess the potential of the Acoustic Emission (AE) technology for detecting natural cracks in operational slow speed shafts.
Mba, David, Elforjani, Mohamed
core +1 more source
Weaving Intelligence: Thermally Drawn Multimaterial Fibers Toward AI‐Enabled Smart Textiles
Advanced Materials, EarlyView.Thermally drawn multimaterial fibers are rapidly advancing as intelligent structural units for next‐generation smart textiles. Integrating multimaterial architectures with neuromorphic and spiking‐neural‐network principles enables fabrics that can sense, compute, and adapt autonomously.
Vuong Dinh Trung +9 more
wiley +1 more source