Results 141 to 150 of about 29,206 (304)

Study on the in-process measurements of the surface roughness of Douglas fir green veneers with the use of laser profilometer

open access: yesEuropean Journal of Wood and Wood Products, 2020
S. Stefanowski   +3 more
semanticscholar   +1 more source

Using grape seed extract to reduce erosive potential of drinks

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract The aim of this study was to verify whether supplementation of grape seed extract (GSE) to different erosive beverages reduces their erosive potential on dentine in vitro. One‐hundred dentine specimens were randomly assigned to 5 groups (n = 20/group): control‐deionized water, 1%‐citric acid, Red Bull, Coca‐Cola, and Powerade.
Samira Helena Niemeyer   +5 more
wiley   +1 more source

Crack Process Investigation in Gears Under Single Tooth Bending Fatigue Condition Using Infrared Thermography and 3D XFEM Numerical Models

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT The present study proposes a combined approach of infrared thermography and 3D XFEM numerical models for crack process investigation in mechanical components such as gears. Over the years, fatigue crack analysis based on energy dissipations in the form of heat generated during fatigue tests has been widely reported, although mainly limited to ...
Luca Corsaro   +3 more
wiley   +1 more source

A laser-based ice shape profilometer for use in icing wind tunnels [PDF]

open access: yes, 1995
A laser-based profilometer was developed to measure the thickness and shape of ice accretions on the leading edge of airfoils and other models in icing wind tunnels.
Hovenac, Edward A., Vargas, Mario
core  

Influence of Laser Repetition Rate, Fluence and Spot Size on LA‐Q‐ICP‐MS/MS 87Sr/86Sr Precision: Insights from Apatites and Silicate Glasses

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Higher laser repetition rate, fluence and larger spot size increase signal intensity. Higher laser repetition rate produces overlaps in aerosolised particles, improving signal stability and precision. For Sr‐rich materials, moderate spot diameter (≤ 60 μm), 3 J cm‐2 fluence and ≥ 12 Hz repetition rate are recommended.
Edafe O. Ominigbo   +4 more
wiley   +1 more source

A Systematic Review Evaluating Methods for Diagnosis, Treatment and Prevention of Dental Erosions

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Aim The aim of this systematic review was to investigate the quality of evidence for methods used to diagnose, restore and prevent dental erosions, by evaluating and summarising clinical controlled studies and in situ studies covering this field.
Maria Skalsky Jarkander   +5 more
wiley   +1 more source

The Effect of Mechanical Instrumentation on Dental Hard Tissue In Vitro: A Systematic Review

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Objective The aim of this review was to analyse the effects of hand instruments, ultrasonic scalers and air polishing devices on dental hard tissues, focusing on material loss and surface roughness. Methods Electronic databases MEDLINE, EMBASE, and the Cochrane Library were screened for relevant studies.
Katerina Mezquita Prieto Dvorska   +2 more
wiley   +1 more source

Comparative Evaluation of the Effect of Different Polishing Systems on Surface Roughness of Permanent 3D‐Printed Resins and a CAD/CAM Restorative Material

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This study evaluated the effects of polishing systems, staining solutions, and aging time on the surface roughness of Computer‐aided design and computer‐aided manufacturing (CAD/CAM) and three‐dimensional (3D)‐printed permanent restorative materials. Methods Three 3D‐printed resins (VarseoSmile Crown plus (VSC), Saremco PrintCrowntec
Nilay Bayraktar   +2 more
wiley   +1 more source

Effect of Cigarette Smoking on the Surface Roughness, Color, and Translucency of Zirconia Produced by Additive and Subtractive Manufacturing

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To compare the surface roughness, color stability, and translucency of zirconia produced by additive manufacturing (AM) and subtractive manufacturing (SM) after exposure to cigarette smoking. Materials and Methods A total of 60 disc‐shaped specimens were fabricated from 2 methods: AM (INNI Cera BCM W500/1000) and SM (VITA YZ T).
Bengisu Mahmutluoglu   +2 more
wiley   +1 more source

Development of Swinging Part Profilometer

open access: yes
A new surface metrology instrument, the ‘Swinging Part Profilometer’ (SPP), has been developed for in-situ measurement of optics undergoing robot-processing in the ground (non-specular) state.
Zhang, Peng   +3 more
core   +3 more sources

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