Results 1 to 10 of about 15,963,312 (351)
Developing definitions of conventional hardness tests for use by National Metrology Institutes [PDF]
This paper describes the process used by the Consultative Committee for Mass and Related Quantities - Working Group on Hardness (CCM-WGH) of the International Committee of Weights and Measures (CIPM) to develop international definitions of the ...
S. Low +4 more
doaj +3 more sources
In engineering projects (dams, tunnels, slope stability) the strength characteristics of the rocks affect the construction operations. It is sometimes difficult, time-consuming, and expensive to evaluate the engineering properties of solid rocks by ...
Ahmet Teymen
doaj +2 more sources
Silicon Photo-Multiplier radiation hardness tests with a beam controlled neutron source [PDF]
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 +2 more sources
The Effect of Four Disc-shaped Polishing Systems on the Surface Roughness and Micro-hardness of Clearfil AP-X Esthetics Composite Resin [PDF]
Background and aim: Polishing techniques are important in preserving the beauty and success of composite restorations. This study evaluated the surface roughness and micro-hardness of CLEARFIL AP-X Esthetics composite polished by different polishing ...
Fatemeh Nezhadnasrollah +4 more
doaj +1 more source
Comparison between a bulk-fill resin-based composite and three luting materials on the cementation of fiberglass-reinforced posts [PDF]
ObjectivesThis study verified the possibility of cementing fiberglass-reinforced posts using a flowable bulk-fill composite (BF), comparing its push-out bond strength and microhardness with these properties of 3 luting materials.Materials and ...
Carlos Alberto Kenji Shimokawa +5 more
doaj +1 more source
OBJECTIVE: To find the effect of artificial saliva, water and different percentages of polyvinyl chloride (PVC) on the flexural strength and microhardness of heat cure polymethylmethacrylate (HC-PMMA) denture base resin.
Shahid Ilyas, Amjad Hanif
doaj +1 more source
Background: The purpose of this study was to compare the microhardness values of ProRoot mineral trioxide aggregate (MTA), Biodentine, and total fill root repair material (TF-RRM) Putty at varying pH and times.
Koral Bayraktar +3 more
doaj +1 more source
Objective This study aimed to assess the effect of fluoride varnish on glass ionomer microhardness changes after endogenous acid erosion challenge.
Fatemeh Moharramkhani +4 more
doaj +1 more source
Remineralization of tooth enamel can be partially achieved by the application of a casein phosphopeptides and amorphous phosphate (CPP-ACP) complex. However, evidence to support its effectiveness in Molar-incisor-hypomineralization (MIH)-affected teeth ...
Inês Cardoso-Martins +4 more
doaj +1 more source

