Results 31 to 40 of about 1,961,451 (191)

Hierarchical microstructure of nanoparticles of calcium carbonate/epoxy composites: Thermomechanical and surface properties

open access: yeseXPRESS Polymer Letters, 2020
Calcium carbonate nanoparticles of calcite structure and nanometric size were successfully synthesized by mechanochemical processing using low energy mill (100 rpm).
T. B. Miranda, G. G. Silva
doaj   +1 more source

Effect of Three Commonly Consumed Beverages on Surface Roughness of Polished and Glazed Zirconia-Reinforced Lithium Silicate Glass Ceramics

open access: yesFrontiers in Dentistry, 2019
Objectives: This study aimed to assess the effect of three commonly consumed beverages on surface roughness of polished and glazed zirconia-reinforced lithium silicate (ZLS) glass ceramics.
Farnaz Firouz   +5 more
doaj   +1 more source

Long-term osseointegration of laser-ablated hearing implants in sheep cranial bone

open access: yesFrontiers in Surgery, 2022
Osseointegration, the ability for an implant to be anchored in bone tissue with direct bone-implant contact and allowing for continuous adaptive remodelling, is clinically used in different reconstructive fields, such as dentistry, orthopedics and ...
Martin Lars Johansson   +7 more
doaj   +1 more source

The influence of water repellent products on the chromatic modifications of the ceramic brick

open access: yesMateriales de Construccion, 2011
Chromatic variation, colour and luminosity, undergone by the ceramic support protected by the incorporation of a treatment with water repellent products, is analysed. A new methodology is suggested, based on RGB model where quantifiable values from each
J. A. Coronado Martin, A. Garcia Santos
doaj   +1 more source

The Effect of Chemical and Mechanical Degradation on Surface Roughness, Topography, Gloss, and Polish Retention of Three Composites Polished with Five Polishing Systems

open access: yesFrontiers in Dentistry, 2021
Objective: Finishing and polishing (F/P) of composites is a fundamental step influencing the clinical service of restorations. The aim of this study was to evaluate the effect of different F/P systems on surface roughness, gloss, and polish retention of ...
Fatemeh Farzaneh   +3 more
doaj   +1 more source

The role of crosslinking density in surface stress and surface energy of soft solids [PDF]

open access: yes, 2021
Surface stress and surface energy are two fundamental parameters that determine the surface properties of any materials. While it is commonly believed that the surface stress and surface energy of liquids are identical, the relationship between the two parameters in soft polymeric gels remains debatable. In this work, we measured the surface stress and
arxiv   +1 more source

Colour variations in graffiti-proofed ceramic materials

open access: yesMateriales de Construccion, 2005
The investigation analyses the variation of superficial properties, COLOUR and LUMINOSITY, hat the ceramic support protected by the incorporation of a protection with transparent painting undergoes, antigraffiti.
A. García Santos, M. Conci Rinaudo
doaj   +1 more source

Effects of Shape, Roughness and Gloss on the Perceived Reflectance of Colored Surfaces

open access: yesFrontiers in Psychology, 2020
This study examined perceptual differentiation of specular from diffuse shading for the recovery of surface color and gloss. In Experiment 1, we parametrically varied the mesoscale relief height of globally planar surfaces, specular sharpness and the ...
Vanessa Honson   +9 more
doaj   +1 more source

Aerosol Forcing from Ground-Based Synergies over a Decade in Barcelona, Spain

open access: yesRemote Sensing
This research aims to estimate long-term aerosol radiative effects by combining radiation and Aerosol Optical Depth (AOD) observations in Barcelona, Spain. Aerosol Radiative Forcing and Aerosol Forcing Efficiency (ARF and AFE) were estimated by combining
Daniel Camilo Fortunato dos Santos Oliveira   +9 more
doaj   +1 more source

On the use of capsaicin as a natural preservative against fungal attack on Pinus sp. and Hymenaea sp. woods [PDF]

open access: yesMaterials Research, 2013
Capsaicin (capsicum oleoresin) extracted from two peeper species, Capsicum frutescens and Capsicum baccatum, was investigated as a natural preservative against fungal (Paecilomyces variotti) attack on Pinus sp. and Hymenaea sp.
Analine Crespo Ziglio   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy