Results 121 to 130 of about 4,868 (243)

Shade variability and stability in interim and definitive tooth‐colored resin‐based restorative materials: Comparing manufacturer‐claimed shades to a universal shade guide

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate the shade variability and stability of interim and definitive tooth‐colored restorative materials by comparing manufacturer‐claimed shades to a universal shade guide before and after thermocycling. Materials and Methods Eight commercially available tooth‐colored restorative materials were tested, including conventional ...
Amal Alfaraj   +2 more
wiley   +1 more source

Synergistic Flame Retardancy of MXene and Poly(p-Phenylene Oxide) on High-Performance Recycling Waste Rubber Modified Polystyrene Composites

open access: yesBioResources
The development of high-performance polystyrene composites modified with recycling waste tire rubbers composed of natural and synthetic rubber mixture is highly desirable for a sustainable society.
Aoxue Tian, Jinlong Zhang, Yong Wang
doaj  

Fire retardancy effects in single and double layered sol-gel derived TiO2 and SiO2-wood composites

open access: yes, 2012
Sol-gel derived TiO2 and SiO2-wood inorganic composites are prepared by direct vacuum infiltration of silicon and titanium alkoxide based precursors in pine sapwood in one or two cycles followed by a controlled thermal curing process. The resulting flame
Huebert, Thomas   +9 more
core   +1 more source

The effects of material thicknesses and substrates on the translucency and color masking ability of additively manufactured definitive crown materials

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the translucency of the new 3D‐printable materials concerning thickness and the color masking ability of each material against different substrate colors. Materials and Methods Ninety square‐shaped specimens (12.0 mm × 12.0 mm) of two new 3D‐printable materials: ceramic‐infiltrated hybrid resin composite (VS) and light ...
Ting Wang   +5 more
wiley   +1 more source

Passive fire protection of metallic structures

open access: yes, 2018
Ph.D ThesisThis study evaluates the different approaches of Passive Fire Protection (PFP) on aluminium and steel. The first investigation determines effectiveness of newly developed multi-layer laminates made of aluminium, titanium and stainless steel ...
Wan Jusoh, Wan Nursheila Binti
core  

The Painterly Materiality of Clouds in Antony and Cleopatra and Hamlet

open access: yesRenaissance Studies, EarlyView.
Abstract This article examines the cloud‐gazing scenes in Antony and Cleopatra and Hamlet through the lens of early modern artistic theory and material practices, particularly the art of limning. Building upon existing philosophical and poetic interpretations of Shakespearean clouds as metaphors for ephemerality and memory, the essay argues that the ...
Anne‐Valérie Dulac
wiley   +1 more source

Comparative Analysis of Biodiesel Produced from Blends of Palm Kernel Shell and Cocoa Pods Oils with Conventional Diesel Fuel: Characterizations, FTIR, GC-MS, XRD and SEM Analysis of the Nano Catalyst

open access: yesABUAD Journal of Engineering Research and Development
The uncertainty of predicting the conditions of bio oils for the production of quality biofuels and reusability of catalyst, saving cost of production and time, make characterization of the oils/catalyst imperative.
Bassey Nkanang   +4 more
doaj   +1 more source

In vitro precision of fit of computer-aided designed and computer-aided manufactured titanium screw-retained fixed dental prostheses before and after ceramic veneering

open access: yes, 2015
OBJECTIVE To compare the precision of fit of full-arch implant-supported screw-retained computer-aided designed and computer-aided manufactured (CAD/CAM) titanium-fixed dental prostheses (FDP) before and after veneering.
Katsoulis, Joannis   +9 more
core   +1 more source

Utopia Remembers: The Soviet Past in the Imagined Communist Future

open access: yesThe Russian Review, EarlyView.
Abstract After a twenty‐five‐year hiatus, the reappearance of utopian literature in 1957 prompted Soviet literary watchdogs to corral the subgenre into an ideologically‐acceptable mold. A key requirement was for future generations to be depicted as reverently commemorating the past.
Antony Kalashnikov
wiley   +1 more source

Numerical Simulation of Combustion Resistant Titanium Alloy Wear Behavior at High Temperature Fields

open access: yes, 2018
The abnormal local friction and wear phenomena usually generate during the service of the titanium alloy rotor /stator parts of the aero engine compressor under high temperature conditions.
Guang Bao Mi   +3 more
core   +1 more source

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