Results 1 to 10 of about 150,698 (248)

Constant-Power versus Constant-Voltage Actuation in Frequency Sweeps for Acoustofluidic Applications

open access: yesMicromachines, 2022
Supplying a piezoelectric transducer with constant voltage or constant power during a frequency sweep can lead to different results in the determination of the acoustofluidic resonance frequencies, which are observed when studying the acoustophoretic ...
Fabian Lickert   +2 more
doaj   +1 more source

Bayesian inference of ion velocity distribution function from laser-induced fluorescence spectra

open access: yesScientific Reports, 2021
The velocity distribution function is a statistical description that connects particle kinetics and macroscopic parameters in many-body systems. Laser-induced fluorescence (LIF) spectroscopy is utilized to measure the local velocity distribution function
S. Tokuda   +6 more
doaj   +1 more source

Joule heating in bad and slow metals

open access: yesSciPost Physics, 2022
Heat supplied to a metal is absorbed by the electrons and then transferred to the lattice. In conventional metals energy is released to the lattice by phonons emitted from the Lindhard continuum.
Paolo Glorioso, Sean A. Hartnoll
doaj   +1 more source

Gated photon correlation spectroscopy for acoustical particle velocity measurements in free-field conditions [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2013
The measurement of acoustic pressure at a point in space using optical methods has been the subject of extensive research in airborne acoustics over the last four decades. The main driver is to reliably establish the acoustic pascal, thus allowing the calibration of microphones with standard and non-standard dimensions to be realized in an absolute and
Triantafillos, Koukoulas   +2 more
openaire   +2 more sources

Assessment of the impact of adding fly ash and coal bottom ash to an advanced cement-based composite matrix [PDF]

open access: yesRevista IBRACON de Estruturas e Materiais, 2022
To reduce environmental impact and hydration heat from high cement consumption in advanced cement-based composites, this study proposes the partial cement substitution by fly ash (FA) and coal bottom ash (CBA) in rates of 15% by mass (7.5% FA and 7.5 ...
Mariana Vieira   +5 more
doaj   +1 more source

Cold Plasma Jet Coupled Nanosecond Laser Ablation Scheme For Plasmonic Nanostructured Surfaces

open access: yesAdvanced Materials Interfaces, 2023
This paper describes a study where an argon cold plasma jet, generated by a dielectric‐barrier discharge (DBD), is combined with nanosecond laser ablation (248 nm, 25 ns, 10 Hz) to deposit silver particle aerosols onto the substrate at atmospheric ...
Taj Muhammad Khan   +4 more
doaj   +1 more source

Effect of Sealing Treatments on Erosion–Corrosion of a Fe-Based Amorphous Metallic Coating in 3.5 wt.% NaCl Solution with 2 wt.% Sand

open access: yesMetals, 2022
In this study, a Fe-based amorphous metallic coating (AMC) was sealed with three sealants, i.e., stearic acid, aluminum phosphate and cerium salt, respectively. Two types of electrochemical tests, namely the ex situ electrochemical impedance spectroscopy
Mingming Liu   +4 more
doaj   +1 more source

Durability properties of ladle slag geopolymer mortar based on fly ash [PDF]

open access: yesScience of Sintering, 2020
This paper presents the results of tests of physical-mechanical, durability and microscopic properties of geopolymer mortar mixtures based on fly ash and ladle slag.
Bijeljić Jelena   +4 more
doaj   +1 more source

Emergent dynamics of light-induced active colloids probed by XPCS

open access: yesNew Journal of Physics, 2022
Self-propelled particulate systems manifest certain collective behavior of living matter, which have been the subject of intense research over the past decades.
Thomas Zinn   +5 more
doaj   +1 more source

Improving bubble-particle attachment during the flotation of low rank coal by surface modification

open access: yesInternational Journal of Mining Science and Technology, 2020
Based on the problems caused by many oxygen-containing functional groups and poor floatability on the surface of low rank coal, the characteristics of low rank coal were analyzed systematically by means of scanning electron microscopy (SEM), X-ray ...
Haishan Hu   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy