Results 1 to 10 of about 47,336 (168)

An Ultrasonic Backscatter Instrument for Cancellous Bone Evaluation in Neonates

open access: yesEngineering, 2015
Ultrasonic backscatter technique has shown promise as a noninvasive cancellous bone assessment tool. A novel ultrasonic backscatter bone diagnostic (UBBD) instrument and an in vivo application for neonatal bone evaluation are introduced in this study ...
Chengcheng Liu   +5 more
doaj   +3 more sources

Design A Novel Ultrasonic Horn Using Electro-Mechanical Circuit Method and Optimization Algorithm [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2022
In this paper, an ultrasonic horn based on the PSO algorithm for emulsion homogenization is optimized and fabricated. The application of various ultrasonic instruments such as horns in different industrial procedures is increasingly expanding and ...
Davoud Mirzaei, Saeid Amini
doaj   +1 more source

Management missed canal tooth and broken file using ultrasonic instrument

open access: yesDental Journal, 2023
Background: Endodontic mishaps, such as missed canal and broken file, are procedural accidents that can affect the prognosis of endodontic treatment. A missed canal can lead to endodontic failure because of bacterial remnants in the root canal.
Abiddinda   +3 more
doaj   +1 more source

Separated Instrument Retrieval using Ultrasonic Vibration and the Braiding Technique: A case report [PDF]

open access: yesERU Research Journal, 2023
Ultrasonic retrieval of endodontic separated instruments, although proven to be highly successful, is a technique-sensitive process that might be accompanied by various complications including root lateral perforations, instrument secondary fractures ...
Omnia Hakim
doaj   +1 more source

Measurement of Linear Springs’ Stiffness Factor Using Ultrasonic Sensing

open access: yesSensors, 2022
We designed an ultrasonic testing instrument that consisted of a single-chip microcomputer module, a digital display module, and an ultrasonic sensor module, which conveniently eliminated the troubles faced by the traditional Jolly’s scale.
Zhongwei Zhang   +5 more
doaj   +1 more source

Comparison of Root Surface Roughness Produced By Hand Instruments and Ultrasonic Scalers: An Invitro Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2015
Background: Instrumentation on tooth surface for debridement of hard and soft debris forms the basis of periodontal therapy. This involves periodic removal of accumulated material using different methods of instrumentation. An ideal instrument should
Pawan Kumar   +3 more
doaj   +1 more source

Design and Performance Analysis of an Ultrasonic System for Health Monitoring of Concrete Structure

open access: yesSensors, 2021
The development and research of an ultrasonic-based concrete structural health monitoring system encounters a variety of problems, such as demands of decreasing complexity, high accuracy, and extendable system output.
Jinhui Zhao   +4 more
doaj   +1 more source

SG-APSIC1045: A quantitative assessment of ATP bioluminescence on dental instruments reprocessed by automated washer-disinfector and ultrasonic machine

open access: yesAntimicrobial Stewardship & Healthcare Epidemiology, 2023
Objectives: Dental instruments are contaminated by blood and saliva during dental procedures. To prevent cross infection, all contaminants should be removed from the surfaces of instruments.
Vivian Man, Tian Cheng Neo
doaj   +1 more source

Ultrasonic components of musical instruments [PDF]

open access: yesProceedings of Meetings on Acoustics, 2016
There are few works characterizing the ultrasonic components emitted by musical instruments, primarily because it did not seem worthwhile to measure an energy that was difficult to register and that it is not perceived by humans. Registering sounds over 20 kHz is possible today with typical audio equipment.
Jorge Petrosino, Ianina Canalis
openaire   +1 more source

Design and Development of a Novel Ultrasonic Field Wetting Angle Measuring Instrument for Researching the Wetting of the Liquid–Solid Interface

open access: yesCrystals, 2021
A key technical problem in the preparation of Al-Ti-C grain refiner and other composite materials is the poor wetting of the Al-C interface, which greatly restricts the development of the preparation technology of related composite materials.
Jingtao Zhao   +3 more
doaj   +1 more source

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