Results 91 to 100 of about 1,231,806 (179)

Correção de erros de medição da geometria interna de tubos provocados pelas rodas de um perfilômetro óptico [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014.O conhecimento da integridade dos dutos na indústria de petróleo e gás é indispensável ...
Victorette, Milena Won Dias
core  

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

International 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, Helena Domeij, Irene Edebert, Alfheidur Astvaldsdottir, Margaret Grindefjord, Annsofi Johannsen   +5 more
wiley   +1 more source

Effects of laser treatments on surface roughness of zirconium oxide ceramics

BMC Oral Health, 2018
Background The aim of this study was to analyze the surface roughness of yttrium stabilized tetragonal polycrystalline zirconia (Y-TZP) ceramics after different laser treatments (CO2, ER: YAG).
Goknil Ergun Kunt, Ibrahim Duran
doaj   +1 more source

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

International 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, Chun Ching Liu, Patrick Schmidlin   +2 more
wiley   +1 more source

Er : YAG laser, ultrasonic system, and curette produce different profiles on dentine root surfaces: An in vitro study

, 2008
Objective: The aim of the present study was to compare the in vitro effects of the Er:YAG laser, an ultrasonic system, and manual curette on dentine root surface by roughness and micro-morphological analysis.
MAXIMO, Maria B., FREITAS, Patricia M. de, DUARTE, Poliana M., RODRIGUES, Jose A., ARRAIS, Cesar A. G., MENDONCA, Adriana C. de   +5 more
core   +1 more source

Analysis of hybrid Nd:Yag laser-MAG arc welding processes. [PDF]

, 2011
In the hybrid laser-arc welding process, a laser beam and an electric arc are coupled in order to combine the advantages of both processes: high welding speed, low thermal load and high depth penetration thanks to the laser; less demanding on joint ...
F. Coste, E. Le Guen, P. Le Masson, COSTE, Frédéric, LE MASSON, Philippe, M. Carin, LE GUEN, Emilie, FABBRO, Rémy, CARIN, Muriel, R. Fabbro   +9 more
core   +1 more source

Air‐Abrasion With Aluminum Oxide Particles in Non‐Carious Cervical Lesions: Impact on Sclerotic Superficial Layer, Surface Topography, and Restorative Adhesive Performance

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of airborne‐particle abrasion (APA) with aluminum oxide on superficial dentin sclerosis, surface topography, and bonding performance of a universal adhesive in natural non‐carious cervical lesions (NCCLs), using dentin classification by the North Carolina Index (NCI) and Optical Coherence Tomography Index (OCT).
Nathalie Murielly Rolim de Abreu, Romina Ñaupari‐Villasante, Pedro Henrique de Aguiar Moreira, Alessandro D. Loguercio, Frederico Barbosa de Sousa   +4 more
wiley   +1 more source

Fiber profilometer for measurement of hard-to-access areas

, 2013
A fiber profilometer is developed to measure hard-to-access areas. This system utilizes low coherence light interferometry technique to detect profiles of internal surfaces of samples.
Qi Jie Wang, Xia Yu, Shaw Wei Kok, Liu, Zhuang, Ying Zhang, Zhang, Ying, Kok, Shaw Wei, Wang, Qi Jie, Yu, Xia, Zhuang Liu   +9 more
core   +1 more source

Process mapping of laser surface modification of AISI 316L stainless steel for biomedical applications [PDF]

, 2009
Due to limited lifetime for biomedical implants, material engineers have strived to improve the surface properties of existing biomaterials. Widely used methods of surface modification include film deposition such as physical vapour deposition (PVD ...
Evans Chikarakara, Chikarakara, Evans, Brabazon, Dermot, Dermot Brabazon, Naher, Sumsun, Sumsun Naher   +5 more
core   +3 more sources

One‐Pot Synthesis of Aqueous PEDOT‐Based Conductive Inks via Sequential RAFT/Oxidative Polymerization

Angewandte Chemie, Volume 138, Issue 44, 26 October 2026.
We developed a fast, aqueous one‐pot synthesis for PEDOT:PSTFSI, combining sequential reversible addition–fragmentation chain‐transfer (RAFT) and oxidative polymerization. This method eliminates toxic solvents and purification steps, achieving full monomer conversion in under 3 h.
Fantine Negny, Melanie Bousquet, Benjamin Cabannes‐Boué, Pierre‐Yves Dugas, Lionel Hirsch, Thiago R. Guimaraes, Eric Cloutet   +6 more
wiley   +2 more sources