Results 31 to 40 of about 3,974,952 (312)

Cleaning ability and induced dentin loss of a magnetostrictive ultrasonic instrument at different power settings

open access: yesClinical Oral Investigations, 2011
Some laboratory studies have evaluated the oscillation mode of ultrasonic scalers. None of them recorded its influence on calculus removal and quantified dental hard tissue loss.
Kathrin Lampe Bless   +4 more
semanticscholar   +1 more source

Ultrasonic partial discharge monitoring method on instrument transformers [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2012
Sonic and ultrasonic partial discharge monitoring have been applied since the early days of these phenomena monitoring. Modern measurement and partial discharge acoustic (ultrasonic and sonic) monitoring method has been rapidly evolving as a result of ...
Kartalović Nenad   +5 more
doaj   +1 more source

Research on cutting force and surface integrity of TC18 titanium alloy by longitudinal ultrasonic vibration assisted milling

open access: yesThe International Journal of Advanced Manufacturing Technology, 2021
In order to study the influence of spindle speed and amplitude on the surface integrity, TC18 titanium alloy samples were milled by the process of conventional milling and longitudinal ultrasonic vibration assisted milling.
Weibo Xie   +9 more
semanticscholar   +1 more source

Creep properties and resistivity-ultrasonic-AE responses of cemented gangue backfill column under high-stress area

open access: yes, 2021
To investigate the creep and instability properties of a cemented gangue backfill column under a high-stress area, the uniaxial compression creep tests were conducted by single-step and multi-step loading of prismatic samples made of cemented gangue ...
Hong-Yu Ran   +4 more
semanticscholar   +1 more source

Separated Instrument Retrieval from the Maxillary Canine using only Ultrasonic Energy and Non-Vital Bleaching with Hydrogen Peroxide: A Case Report [PDF]

open access: yesJournal of Endodontics and Restorative Dentistry
A fractured file within the root canal system can hinder the root canal's mechanical and chemical cleaning, adversely affecting the treatment prognosis.
Abdulmelik Buğrahan Kızıl   +2 more
doaj   +1 more source

Ultrasonic distance sensor improvement using a two-level neural network [PDF]

open access: yes, 1995
This paper discusses the performance improvement that a neural network can provide to a contactless distance sensor based on the measurement of the time of flight (TOF) of an ultrasonic (US) pulse.
Ferraris, Franco   +17 more
core   +1 more source

Ultrasonic resonance of defects for nonlinear acoustic imaging and NDT [PDF]

open access: yes, 2014
The effect of local defect resonance (LDR) on the nonlinear ultrasonic response of defects is studied and applied for enhancement of sensitivity of nonlinear ultrasonic ...
Igor Solodov
core   +1 more source

Development of an Accurate Resonant Frequency Controlled Wire Ultrasound Surgical Instrument

open access: yesSensors, 2020
Our developed wire ultrasound surgical instrument comprises a bolt-clamped Langevin ultrasonic transducer (BLUT) fabricated by PMN-PZT single crystal material due to high mechanical quality factor and electromechanical coupling coefficient, a waveguide ...
Jungsuk Kim   +3 more
doaj   +1 more source

Ultrasonic Surface Hardening of Low Carbon Steels and Non-Ferrous Alloys [PDF]

open access: yesMATEC Web of Conferences, 2019
The possibility of using ultrasonic surface hardening with implementing the indenter tangential oscillations to the deformed surface to improve the quality of the detail surface layer produced from low carbon steel and ferrous alloys is considered in the
Rakhimyanov Kharis   +2 more
doaj   +1 more source

Evidence‐Based Clinical Practice Guidelines for the Management of Pediatric Febrile Neutropenia: Resource‐Sensitive Recommendations for the Asian Continent

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Febrile neutropenia (FN) is a frequent and serious complication in children receiving cancer therapy. Standardizing FN management across Asia is challenging due to variable healthcare infrastructure, diagnostic capacity, and infection patterns; however, it could improve resource use and patient outcomes.
Joliza Patricia Cañeba   +29 more
wiley   +1 more source

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