Results 11 to 20 of about 33,469 (308)

An Ultrasonic Vibration Scratch Tester for Studying the Scratch Characteristics of Materials under Ultrasonic Vibration Contact Status

open access: yesActuators
Ultrasonic vibration-assisted machining is a promising technique for improving the removability of materials, especially for difficult-to-machine materials, but the material removal mechanism under ultrasonic vibration status is still far from clear ...
Yaming Huang   +4 more
doaj   +2 more sources

Apparatus Developments of Ultrasonic Vibration-Assisted Microabrasive Waterjet Polishing

open access: yesAdvances in Materials Science and Engineering, 2018
The experiment apparatus of ultrasonic vibration-assisted microabrasive waterjet polishing is developed. The simulation model of ultrasonic nozzle is analyzed with the help of ANSYS software.
Rongguo Hou   +3 more
doaj   +2 more sources

Transdermal delivery of insulin by ultrasonic vibration

open access: yesJournal of Pharmacy and Pharmacology, 1991
Abstract Ultrasonic vibration has been used to deliver insulin through the skin of hairless mice fasted overnight and partially immersed in an aqueous solution of insulin (20 units mL−1). The skin surface was exposed to ultrasonic vibration in two ultrasonic energy ranges (3000–5000 Pa and 5000–8000 Pa) at 48 kHz for 5 min. Blood glucose
K, Tachibana, S, Tachibana
openaire   +3 more sources

STUDY ON ULTRASONIC VIBRATION MILLING FORCE OF OPTICAL GLASS MATERIAL

open access: yesJixie qiangdu, 2018
In view of the problems such as low efficiency and surface cracks in optical glass processing,the experiment studied the influence of cutting parameters and acoustic parameters on milling forces and established a milling force model of optical glass ...
ZHAO Jie, FU ZongXia
doaj   +2 more sources

Molecular dynamics simulation of monocrystalline copper nano-scratch process under the excitation of ultrasonic vibration

open access: yesMaterials Research Express, 2021
In order to explore the mechanism of unidirectional ultrasonic vibration-assisted machining from a microscopic point of view, the molecular dynamic (MD) simulation method is used to simulate the scratch process of monocrystalline copper under ultrasonic ...
Chen Jian-Hao   +4 more
doaj   +1 more source

Ultrasonic sensing using Yb3+/Er3+-codoped distributed feedback fibre grating lasers. [PDF]

open access: yes, 2005
Yb3+/Er3+-codoped distributed feedback (YbEr-DFB) fibre grating lasers have been investigated for the detection of ultrasonic Lamb waves generated in an aluminum plate. Two sensor configurations have been investigated. A path length imbalanced readout
Ye, Chen-Chun, Tatam, Ralph P.
core   +1 more source

A comprehensive review of advances in ultrasonic vibration machining on SiCp/Al composites

open access: yesJournal of Materials Research and Technology, 2023
On account of the remarkable mechanical properties, SiCp/Al composites are extensively utilized in the aerospace industry, exhibiting a vast scope of applications.
Zhaojie Yuan   +8 more
doaj   +1 more source

Effect of ultrasonic assisted sintering on mechanical properties and degradation behaviour of Mg15Nb3Zn1Ca biomaterial

open access: yesJournal of Magnesium and Alloys, 2021
The present work investigates the effect of ultrasonic power (%) and the time of ultrasonic vibration on the sintered density and ultimate compressive strength (UCS) of Mg15Nb3Zn1Ca fabricated using ultrasonic assisted conventional sintering (UACS).
Ajit Kumar, Pulak M Pandey
doaj   +1 more source

A radial mode ultrasonic horn for the inactivation of Escherichia coli K12 [PDF]

open access: yes, 2008
Tuned cylindrical radial mode ultrasonic horns offer advantages over ultrasonic probes in the design of flow-through devices for bacterial inactivation. This study presents a comparison of the effectiveness of a radial horn and probe in the inactivation ...
Lucas, M.   +3 more
core   +1 more source

Experimentally valided approach for the simulation of the forging process using mechanical vibration [PDF]

open access: yes, 2009
In this study, an experimental setup of a forging process has been designed which allows to apply vibrations to the lower die of amplitude ranging from 0 to 80 ?m at frequencies varying from 1 to 130Hz thanks to the use of a stack piezoelectric actuator ...
ABBA, Gabriel   +3 more
core   +1 more source

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