Results 71 to 80 of about 33,703 (304)
Application of Fractional Fourier Transform for Prediction of Ball Mill Loads Using Acoustic Signals
IEEE Access, 2019 In cement plant and power plant, ball mills remain in current and widespread use. The load parameter inside a ball mill directly impacts the stability of the production process, the grinding production rate, and the quality of the product in the grinding
Jianquan Shi, Gangquan Si, Yanbin Zhang
doaj +1 more source
Acoustic emission signal analysis
, 1982 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.An extension of acoustic emission technology was made which permits identification of probable source mechanisms for signals emitted during the failure of ...
Carlyle, John Michael
core
Advanced Materials, EarlyView.Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief +12 more
wiley +1 more source
, 2012 Previous studies suggested that variability indices based on information extracted from the acoustic signal are potentially useful in assessing dysarthric speech.
Van Brenk, Frits, Lowit, Anja
core
Laser‐Assisted Phase Engineering of 2D MoS2 for Efficient Solution‐Processed Electronics
Advanced Materials, EarlyView.Here, local laser‐assisted phase transition from solution‐processed phase‐pure 1T′ to 2H MoS2 is shown to critically depend on the irradiation atmosphere. While processing in air leads to damaged insulating regions, inert conditions yield semiconducting 2H domains, enabling direct field‐effect transistor patterning with optimized lateral 1T′‐2H MoS2 ...
Anna Zhuravlova +10 more
wiley +1 more source
Spectra of Interacting Acoustical Waves with a Turbulent Wake [PDF]
The Journal of the Acoustical Society of America, 1969 The state of a compressible fluid is completely prescribed by its velocity, density, pressure, and temperature fields. When the compressible fluid is in a turbulent flow, all these quantities fluctuate in a random manner. Space-time Fourier transforms are used to show that these state variables separate into two physically distinct groups, one ...
A. Izzo, M. Yildiz
openaire +1 more source
Acoustic and Optical Surface Phonons
, 1983 Very recently surface Brillouin scattering from opaque materials and electron energy loss spectroscopy from metallic surfaces with adsorbate were succesfully emplyed to detect surface phonons.
BORTOLANI, Virginio +4 more
core +1 more source
A local defect resonance for linear and nonlinear ultrasonic thermography [PDF]
, 2014 An efficient wave-defect interaction is the key to a high thermal response of flaws in ultrasonic thermography. To selectively enhance defect vibrations a concept of local defect resonance is developed and applied to ultrasonic activation of defects ...
Solodov, I., Rahammer, M., Busse, G.
core +1 more source
Switchable Magnonic Crystals Based on Spin Crossover/CrSBr Heterostructures
Advanced Materials, EarlyView.Multiscale modeling is employed to investigate the functionality of a light‐controlled, tunable magnonic crystal based on spin‐crossover Fe‐pz molecules integrated with a monolayer of CrSBr. Ab initio simulations confirm that the molecules remain functional on the CrSBr surface, while a semiclassical elastic model demonstrates that light‐induced ...
Andrei Shumilin +4 more
wiley +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