Results 51 to 60 of about 2,606,960 (274)

A Dynamic Composition Mechanism of Security Service Chaining Oriented to SDN/NFV-Enabled Networks

open access: yesIEEE Access, 2018
With the large-scale commercial application of data center networks, the security problem of data center network is attracting more and more attention.
Yicen Liu   +3 more
doaj   +1 more source

An Integrated Approach for Facility Location and Supply Vessel Planning with Time Windows [PDF]

open access: yesJournal of Optimization in Industrial Engineering, 2019
This paper presents a new model of two-echelon periodic supply vessel planning problem with time windows mix of facility location (PSVPTWMFL-2E) in an offshore oil and gas industry.
Mohsen Amiri   +3 more
doaj   +1 more source

On two inequalities for the composition of arithmetic functions [PDF]

open access: yes, 2012
A paper about two inequalities for the composition of arithmetic ...
József Sándor, Sandor, Jozsef
core   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

Partition and composition matrices: two matrix analogues of set partitions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
This paper introduces two matrix analogues for set partitions; partition and composition matrices. These two analogues are the natural result of lifting the mapping between ascent sequences and integer matrices given in Dukes & Parviainen (2010).
Anders Claesson   +2 more
doaj   +1 more source

Covariance within Random Integer Compositions

open access: yesCoRR, 2020
Fix a positive integer $N$. Select an additive composition $ξ$ of $N$ uniformly out of $2^{N-1}$ possibilities. The interplay between the number of parts in $ξ$ and the maximum part in $ξ$ is our focus. It is not surprising that correlations $ρ(N)$ between these quantities are negative; we earlier gave inconclusive evidence that $\lim_{N \to \infty} ρ ...
openaire   +2 more sources

Accelerated Discovery of Topological Spin Phase Diagrams in CrSBr Magnets Via High‐Throughput Optimization

open access: yesAdvanced Functional Materials, EarlyView.
Here, we develop a high‐throughput algorithm that accelerates the elucidation of phase diagrams of topological spin textures using limited computational resources at high numerical accuracy. Applying this framework to the van der Waals magnet CrSBr, we unveiled a hierarchy of previously unknown topological textures (domain‐wall bimerons, bimeron chains,
Andrew Lyall   +4 more
wiley   +1 more source

The number of distinct part sizes of some multiplicity in compositions of an Integer. A probabilistic Analysis [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
Random compositions of integers are used as theoretical models for many applications. The degree of distinctness of a composition is a natural and important parameter. A possible measure of distinctness is the number $X$ of distinct parts (or components).
Guy Louchard
doaj   +1 more source

Part-products of S-restricted integer compositions [PDF]

open access: yesApplicable Analysis and Discrete Mathematics, 2013
If S is a cofinite set of positive integers, an "S-restricted composition of n" is a sequence of elements of S, denoted ?? = (?1, ?2, ... ), whose sum is n. For uniform random S-restricted compositions, the random variable B(??) = ?i ?i is asymptotically lognormal. (A precise statement of the theorem includes an error term to bound the rate
Schmutz, Eric, Shapcott, Caroline
openaire   +2 more sources

Drop‐on‐Demand Printed Negative Dielectric Anisotropy Liquid Crystal Droplets for Adaptive Complex Beam Manipulation and Assessment

open access: yesAdvanced Functional Materials, EarlyView.
Printed negative‐dielectric‐anisotropy liquid‐crystal droplets enable multidimensional full‐vectorial optical‐field sensing across polarization, phase, and wavelength, while also generating tunable skyrmionic‐like complex optical fields. ABSTRACT Adaptive manipulation of vectorial optical fields is important for optical metrology, imaging, and ...
Jinge Guo   +14 more
wiley   +1 more source

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