Results 41 to 50 of about 14,326,834 (335)

Determination of the Optimum formula for Composite Motor Gasoline Octane Number Blending Enhancer

open access: yesJournal of Engineering, 2019
To decrease the dependency of producing high octane number gasoline on the catalytic processes in petroleum refineries and to increase the gasoline pool, the effect of adding a suggested formula of composite blending octane number enhancer to motor ...
Alaa D. Jawad Al-Bayati   +2 more
doaj   +1 more source

Influence of in vitro irrigation protocols on root canal treatment for bond strength to enamel and coronary dentin

open access: yesSaudi Endodontic Journal, 2021
Introduction: The purpose of this study was to evaluate the effects of different concentrations of chitosan solution used as a final rinse after root canal treatment on the shear bond strength of composite resin to enamel and coronary dentin.
Vanessa Lessa Araújo   +6 more
doaj   +1 more source

Distribution of squares modulo a composite number

open access: yes, 2015
In this paper we study the distribution of squares modulo a square-free number $q$. We also look at inverse questions for the large sieve in the distribution aspect and we make improvements on existing results on the distribution of $s$-tuples of reduced
Aryan, Farzad
core   +1 more source

Composite electric S-brane solutions with maximal number of branes

open access: yes, 2004
In this paper we consider (n+1)-dimensional cosmological model with scalar field and antisymmetric (p+2)-form. Using an electric composite Sp-brane ansatz the field equations for the original system reduce to the equations for a Toda-like system with n(n-
D Singleton   +24 more
core   +1 more source

Composite Material Recycling Technology—State-of-the-Art and Sustainable Development for the 2020s

open access: yesJournal of Composites Science, 2020
Recently, significant events took place that added immensely to the sociotechnical pressure for developing sustainable composite recycling solutions, namely (1) a ban on composite landfilling in Germany in 2009, (2) the first major wave of composite wind
A. Krauklis   +3 more
semanticscholar   +1 more source

Flexible Methyl Cellulose/Polyaniline/Silver Composite Films with Enhanced Linear and Nonlinear Optical Properties

open access: yesPolymers, 2021
In order to potentiate implementations in optical energy applications, flexible polymer composite films comprising methyl cellulose (MC), polyaniline (PANI) and silver nanoparticles (AgNPs) were successfully fabricated through a cast preparation method ...
A. Atta   +3 more
semanticscholar   +1 more source

Study on computational efficiency of composite schemes for convection-diffusion equations using single-grid and multigrid methods

open access: yesJournal of Thermal Science and Technology, 2015
The computational efficiency of different composite schemes for the convection terms of the convection-diffusion equations is systematically studied in this paper.
Jingfa LI   +4 more
doaj   +1 more source

Dirac Neutrino Masses with Planck Scale Lepton Number Violation

open access: yes, 2003
It is shown how pure Dirac neutrino masses can naturally occur at low energies even in the presence of Planck scale lepton number violation. The geometrical picture in five dimensions assumes that the lepton number symmetry is explicitly broken on the ...
E. Witten   +14 more
core   +3 more sources

Stable Seamless Interfaces and Rapid Ionic Conductivity of Ca–CeO2/LiTFSI/PEO Composite Electrolyte for High‐Rate and High‐Voltage All‐Solid‐State Battery

open access: yesAdvanced Energy Materials, 2020
Stable and seamless interfaces among solid components in all‐solid‐state batteries (ASSBs) are crucial for high ionic conductivity and high rate performance.
Hao Chen   +8 more
semanticscholar   +1 more source

Heat Treated NiP–SiC Composite Coatings: Elaboration and Tribocorrosion Behaviour in NaCl Solution [PDF]

open access: yes, 2009
Tribocorrosion behaviour of heat-treated NiP and NiP–SiC composite coatings was investigated in a 0.6 M NaCl solution. The tribocorrosion tests were performed in a linear sliding tribometer with an electrochemical cell interface.
A Hovestad   +37 more
core   +2 more sources

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