Results 31 to 40 of about 226,462 (213)

Fracture behaviour of alloys for a new laser ranged satellite [PDF]

open access: yes, 2018
A new laser-ranged satellite called LARES 2 (Laser Relativity Satellite 2) has been recently designed for accurate tests of Einsten's theory of General Relativity and space geodesy.
Brotzu, A.   +4 more
core   +1 more source

Dental bleaching gels do not alter the surface roughness and microhardness of feldspathic porcelain

open access: yesRGO: Revista Gaúcha de Odontologia, 2020
Objective: To evaluate whether two different bleaching gels affect the microhardness and surface roughness of feldspathic ceramic specimens, in vitro. Methods: A total of 48 feldspathic porcelain IPS In Line (Ivoclar-Vivadent) discs (16/treatment group)
Danyelle Cambraia Franco de SOUZA   +5 more
doaj   +1 more source

Silicon Photo-Multiplier radiation hardness tests with a beam controlled neutron source

open access: yes, 2010
We report radiation hardness tests performed at the Frascati Neutron Generator on silicon Photo-Multipliers, semiconductor photon detectors built from a square matrix of avalanche photo-diodes on a silicon substrate.
A. Cotta Ramusino   +15 more
core   +1 more source

Elaboration of thin foils in copper and zinc by self-induced ion plating [PDF]

open access: yes, 2014
The aim of this work was to determine the ability to produce thin metallic foils by self-induced ion plating. Foils of pure copper and pure zinc with a thickness of 35 μm have been successfully produced and their characteristics have been compared to ...
GIRAUD, Eliane   +2 more
core   +7 more sources

Avaliação da dureza superficial de cimentos de ionômero de vidro reforçados por nanotubos de carbono

open access: yesRevista de Odontologia da UNESP
Introdução Os cimentos de ionômero de vidro (CIV) são materiais com baixa resistência à tração e ao cisalhamento, mostrando-se, portanto, contraindicados para áreas sujeitas às grandes cargas oclusais.
Mayra Manoella Perez Reis dos Santos   +3 more
doaj   +1 more source

Effects of layering technique on the shade of resin overlays and the microhardness of dual cure resin cement

open access: yesBrazilian Oral Research, 2014
The purpose of this study was to assess the color of layered resin overlays and to test the early microhardness of dual cure resin cement (DCRC) light cured through the layered resin overlays.
Hoon-Sang Chang, Sung-Ok Hong
doaj   +1 more source

TYPE OF WATER IN TIGRIS RIVER AND ITS SUITIBILITY FOR DRINK IN MOSUL CITY [PDF]

open access: yesMesopotamia Journal of Agriculture, 2012
To study the quality of Tigris River and its suitability for drink in Mosul city , the selected samples contain two types of water (Raw , supplied ) , four areas near four water projects (new right , old Right .Oprawy & Hammam Alaleel ). the samples were
Loay Muhammad Fadhil Al-Emam
doaj   +1 more source

On the Decreasing Power of Kernel and Distance based Nonparametric Hypothesis Tests in High Dimensions

open access: yes, 2014
This paper is about two related decision theoretic problems, nonparametric two-sample testing and independence testing. There is a belief that two recently proposed solutions, based on kernels and distances between pairs of points, behave well in high ...
Póczos, Barnabás   +4 more
core   +1 more source

Reliability and Validity of Shore Hardness in Plantar Soft Tissue Biomechanics

open access: yesSensors
Shore hardness (SH) is a cost-effective and easy-to-use method to assess soft tissue biomechanics. Its use for the plantar soft tissue could enhance the clinical management of conditions such as diabetic foot complications, but its validity and ...
Redent Tonna   +3 more
doaj   +1 more source

Effects of coronal substrates and water storage on the microhardness of a resin cement used for luting ceramic crowns

open access: yesJournal of Applied Oral Science, 2014
Composite resin and metallic posts are the materials most employed for reconstruction of teeth presenting partial or total destruction of crowns. Resin-based cements have been widely used for cementation of ceramic crowns.
Luana Menezes de MENDONÇA   +4 more
doaj   +1 more source

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