Results 51 to 60 of about 12,654,125 (372)
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
Dynamical Sieve of Eratosthenes
In this document, prime numbers are related as functions over time, mimicking the Sieve of Eratosthenes. For this purpose, the mathematical representation is a uni-dimentional time line depicting the number line for positive natural numbers N, where each
Mateos, Luis A.
core +2 more sources
Composite functional metasurfaces for multispectral achromatic optics [PDF]
Nanostructured metasurfaces offer unique capabilities for subwavelength control of optical waves. Based on this potential, a large number of metasurfaces have been proposed recently as alternatives to standard optical elements.
O. Avayu+3 more
semanticscholar +1 more source
Composite electric S-brane solutions with maximal number of branes
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
Approximation and entropy numbers of composition operators [PDF]
Abstract We give a survey on approximation numbers of composition operators on the Hardy space, on the disk and on the polydisk, and add corresponding new results on their entropy numbers, revealing how they are different.
Li, Daniel+2 more
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Approximation numbers of weighted composition operators [PDF]
We study the approximation numbers of weighted composition operators $f\mapsto w\cdot(f\circ )$ on the Hardy space $H^2$ on the unit disc. For general classes of such operators, upper and lower bounds on their approximation numbers are derived. For the special class of weighted lens map composition operators with specific weights, we show how much the
G. Lechner+3 more
openaire +5 more sources
Heat Treated NiP–SiC Composite Coatings: Elaboration and Tribocorrosion Behaviour in NaCl Solution [PDF]
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
SnO2 and α-Fe2O3 were prepared by a sol–gel method and their composite (SnO2–α-Fe2O3) systems were synthesized by combining SnO2 with α-Fe2O3 in various weight percent ratios.
L. Devi, R. Shyamala
semanticscholar +1 more source
Network topology drives population temporal variability in experimental habitat networks
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu+3 more
wiley +1 more source
Distribution of Composite Numbers and Determination of Prime Numbers
Integer is either a composite number or a prime number. Therefore, detecting composite numbers is important for solving prime numbers. The study of prime numbers, apart from satisfying human curiosity, can be very important. In this article, the order of composite numbers has been detected. And explained with a simple method and a simple function. And,
openaire +4 more sources