Results 21 to 30 of about 589,315 (370)

Ultrasonication of Sugary -2 Corn for Enhanced Enzymatic Hydrolysis [PDF]

open access: yes, 2008
This study investigates the potential application of high powered ultrasonics as a liquefaction pretreatment of sugary-2 corn slurry. Ground sugary-2 corn ( Zea Mays L. ) slurry was treated with ultrasonics at 20kHz and amplitudes of 192-320 µ m pp (peak-
Johnson, Lawrence   +3 more
core   +3 more sources

Propensity-score-matching analysis to compare efficacy and safety between 16-gauge and 18-gauge needle in ultrasound-guided biopsy for peripheral pulmonary lesions

open access: yesBMC Cancer, 2021
Background Definitive diagnosis of peripheral pulmonary lesions (PPLs) depends on the histological analysis of the pleural biopsy sample. Ultrasound (US)-guided sampling is now standard practice in the clinical setting.
Weijun Huang   +8 more
doaj   +1 more source

The Detection of Burn-Through Weld Defects Using Noncontact Ultrasonics

open access: yesMaterials, 2018
Nearly all manufactured products in the metal industry involve welding. The detection and correction of defects during welding improve the product reliability and quality, and prevent unexpected failures.
Z. Abbasi   +6 more
semanticscholar   +1 more source

Influence of surface roughness from additive manufacturing on laser ultrasonics measurements

open access: yes, 2019
Additive manufacturing (AM) is viewed as a revolutionary technique as it offers numerous appealing capabilities such as complex geometries, functionally graded properties, build-upon-demand, repairs, etc. However, in order to attain the full potential of
C. Bakre   +2 more
semanticscholar   +1 more source

Scanning Electron Microscopic Evaluation of Efficacy of 17% Ethylenediaminetetraacetic Acid and Chitosan for Smear Layer Removal with Ultrasonics: An In vitro Study

open access: yesContemporary Clinical Dentistry, 2017
Introduction: The main aim of root canal treatment is cleaning, shaping and then obturating three dimensionally to prevent reinfection. This includes chemicomechanical cleansing by instrumentation and the use of irrigating solutions.
A. Kamble   +4 more
semanticscholar   +1 more source

On the optical nonlinearity in the GeSbSe chalcogenide glasses

open access: yesMaterials Research Express, 2020
Chalcogenide glasses Ge _x Sb _40−x Se _60 with composition 12, 25 and 30 at.%, synthesized from elements with 5N purity (Ge, Sb, Se) by the conventional melt-quenching method were studied.
Nicoleta Nedelcu   +3 more
doaj   +1 more source

Directivity pattern of the sound radiated from square stepped-plate radiators

open access: yesActa Acustica, 2020
A square flat-plate radiator driven by a longitudinal vibrator at the resonant frequency of its fourth-order natural vibration mode at its center for the generation of highly directional ultrasonic radiation in air is studied herein.
Xiping He, Na Li
doaj   +1 more source

Femtosecond nonlinear ultrasonics in gold probed with ultrashort surface plasmons [PDF]

open access: yesNature Communications, 2012
Fundamental interactions induced by lattice vibrations on ultrafast time scales have become increasingly important for modern nanoscience and technology.
V. Temnov   +8 more
semanticscholar   +1 more source

Shear horizontal (SH) ultrasound wave propagation around smooth corners [PDF]

open access: yes, 2014
Shear horizontal (SH) ultrasound guided waves are being used in an increasing number of non-destructive testing (NDT) applications. One advantage SH waves have over some wave types, is their ability to propagate around curved surfaces with little energy ...
Burrows, S. E. (Susan E.)   +2 more
core   +1 more source

Cavitation bubble structures below a soft boundary in an ultrasonic field

open access: yesUltrasonics Sonochemistry, 2023
We studied the layer structure of bubbles just below water/air and water/EPE (Expand aple poly ephylene) interfaces using high-speed photography.
Fan Li   +9 more
doaj  

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