Results 21 to 30 of about 284,598 (280)

Analysis of ultradian rest-activity rhythms using locomotor activity in mice [PDF]

open access: yesKosin Medical Journal, 2022
Background Locomotor activity in mice may have an ultradian rest-activity rhythm. However, to date, no study has shown how locomotor activity can be explained statistically using fitted cosine curves.
Jung Hyun Lee   +4 more
doaj   +1 more source

Degenerate C-distribution cosine functions and degenerate C-ultradistribution cosine functions in locally convex spaces [PDF]

open access: yesFilomat, 2017
The main purpose of this paper is to investigate degenerate C-(ultra)distribution cosine functions in the setting of barreled sequentially complete locally convex spaces. In our approach, the infinitesimal generator of a degenerate C-(ultra)distribution cosine function is a multivalued linear operator and the regularizing operator C is ...
Daniel Velinov   +2 more
openaire   +3 more sources

NN-Harmonic Mean Aggregation Operators-Based MCGDM Strategy in a Neutrosophic Number Environment

open access: yesAxioms, 2018
A neutrosophic number (a + bI) is a significant mathematical tool to deal with indeterminate and incomplete information which exists generally in real-world problems, where a and bI denote the determinate component and indeterminate component ...
Kalyan Mondal   +3 more
doaj   +1 more source

Hyperbolic cosine function in physics [PDF]

open access: yesEuropean Journal of Physics, 2020
Abstract A catenary is the shape that an electric cable takes under its own weight if suspended only at its ends between two pylons. A rope hung between two masts is also described with a catenary equation which is based on the hyperbolic cosine function.
Bonnet, Isabelle, Gabelli, Julien
openaire   +1 more source

On the Superstability of the Pexider Type Trigonometric Functional Equation

open access: yesJournal of Inequalities and Applications, 2010
We will investigate the superstability of the (hyperbolic) trigonometric functional equation from the following functional equations: f(x+y)±g(x−y)=λf(x)g(y) andf(x+y)±g(x−y)=λg(x)f(y), which can be considered ...
Gwang Hui Kim
doaj   +2 more sources

On the suppression of the sidelobes of the supercurrent in small Josephson tunnel junctions [PDF]

open access: yes, 1991
The critical currents of Nb/Al, Al-oxide, Al/Nb tunnel junctions of various shapes have been measured as a function of the applied magnetic field. For the square junction and for some special shapes like the diamond, ¿1 + cosine¿ and quartic junctions ...
Flokstra, J.   +3 more
core   +2 more sources

The Intuitionistic Fuzzy Linguistic Cosine Similarity Measure and Its Application in Pattern Recognition

open access: yesComplexity, 2018
We propose the cosine similarity measures for intuitionistic fuzzy linguistic sets (IFLSs) and interval-valued intuitionistic fuzzy linguistic sets (IVIFLSs), which are expressed by the linguistic scale function based on the cosine function.
Donghai Liu, Xiaohong Chen, Dan Peng
doaj   +1 more source

On the Spectrum of Cosine Functions

open access: yesJournal of Mathematical Analysis and Applications, 1999
The author gives some characterizations of the resolvent set \(\rho(A)\) of the generator \(A\) of a strongly continuous cosine function \(C(t)\) with the aid of the equation \[ u''(t)=Au(t)+f(t). \] One of these theorems shows that \(1\in\rho(C(1))\) if and only if, for every \(1\)-periodic function \(f\in C([0,1],X)\) (\(X\) is a Banach space), the ...
Cionarescu, Ioana, Lizama, Carlos
openaire   +3 more sources

Mathematical modeling of non-Newtonian fluid in arterial blood flow through various stenoses

open access: yesAdvances in Difference Equations, 2021
Since the stenosis geometry of some cardiovascular patients cannot be described by a vertically symmetric function throughout the stenosis, so it motivates us to study the blood flow through a vertically asymmetric stenosis.
Pinyo Owasit, Somchai Sriyab
doaj   +1 more source

Sine Cosine Algorithm for Elite Individual Collaborative Search and Its Application in Mechanical Optimization Designs

open access: yesBiomimetics, 2023
To address the shortcomings of the sine cosine algorithm such as the low search accuracy, slow convergence speed, and easily falling into local optimality, a sine cosine algorithm for elite individual collaborative search was proposed.
Junjie Tang, Lianguo Wang
doaj   +1 more source

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