Results 41 to 50 of about 10,910,604 (357)

On a family of pseudohyperbolic disks [PDF]

open access: yes, 2015
Hyperbolic geometry plays an important role within function theory of the disk. For example, via the Schwarz-Pick Lemma, the isometries of the unit disk $\mathbb D$ with respect to this geometry are the conformal self-maps of $\mathbb D$.
Mortini, Raymond, Rupp, Rudolf
core   +2 more sources

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

Performance enhancement of multivariable model reference optimal adaptive motor speed controller using error-dependent hyperbolic gain functions

open access: yesAutomatika, 2020
The main contribution of this paper is to formulate a robust-adaptive and stable state-space speed control strategy for DC motors. The linear-quadratic-integral (LQI) controller is utilized as the baseline controller for optimal speed-regulation ...
Omer Saleem   +3 more
doaj   +1 more source

Application of the Surveillance Device in the Control System for an Electromechanical System with Distributed Parameters in its Mechanical Part

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2023
A system with distributed parameters in its mechanical part is considered. Examples of such a system are given. The reason for taking into account the distribution of parameters in such systems is indicated.
A. P. Korneev   +2 more
doaj   +1 more source

Reiber’s Diagram for Kappa Free Light Chains: The New Standard for Assessing Intrathecal Synthesis?

open access: yesDiagnostics, 2019
Oligoclonal bands are the gold standard for determination of an intrathecal immunoglobulin G synthesis and were recently included in the McDonald criteria of 2017 to diagnose relapsing multiple sclerosis (MS) as a substitute for dissemination in time ...
Philipp Schwenkenbecher   +7 more
doaj   +1 more source

Forced hyperbolic mean curvature flow [PDF]

open access: yes, 2012
In this paper, we investigate two hyperbolic flows obtained by adding forcing terms in direction of the position vector to the hyperbolic mean curvature flows in \cite{klw,hdl}.
Mao, Jing
core   +1 more source

New Sharp Bounds for the Modified Bessel Function of the First Kind and Toader-Qi Mean

open access: yesMathematics, 2020
Let I v x be he modified Bessel function of the first kind of order v. We prove the double inequality sinh t t cosh 1 / q q t
Zhen-Hang Yang   +2 more
doaj   +1 more source

An Updated Evaluation of Intrathecal IgG Synthesis Markers in Relation to Oligoclonal Bands

open access: yesDiagnostics, 2023
The aim was to evaluate the performance of the latest quantitative marker for intrathecal IgG synthesis and to compare it with other established markers used for the same purpose.
Fotini Boufidou   +7 more
doaj   +1 more source

Monotonicity results and bounds for the inverse hyperbolic sine [PDF]

open access: yes, 2009
In this note, we present monotonicity results of a function involving to the inverse hyperbolic sine.
B-N Guo   +14 more
core   +2 more sources

Numerically Stable form of Green’s Function for a Free-Free Uniform Timoshenko Beam

open access: yesMathematics, 2022
Beam models are widely applied in civil engineering, transport, and industry because the beams are basic structural elements. When dealing with the high-order modes of beam in the context of applying the modal analysis method, the numerical instability ...
Traian Mazilu
doaj   +1 more source

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