Results 71 to 80 of about 163,678 (245)

Hybrid Microtubule–Solid‐State Nanopores for Single‐Molecule Analysis

open access: yesELECTROPHORESIS, EarlyView.
Nanopores electrically detect molecules during translocation, but short passage times limit resolution. By anchoring a microtubule to a solid‐state nanopore, this hybrid system significantly prolongs DNA translocation while enabling simultaneous measurement of microtubule electrical properties, advancing nanoscale sensing and bioelectronic ...
Matthew O'Donohue   +7 more
wiley   +1 more source

On the Evaluation of Bessel Functions

open access: yesApplied and Computational Harmonic Analysis, 1993
The author presents an algorithm for the evaluation of Bessel functions \(J_ \nu(x)\), \(Y_ \nu(x)\) and \(H_ \nu^{(j)}(x)\) \((j=1,2)\) of arbitrary positive orders and arguments. This algorithm consists of two parts: One of them combines the evaluation of the function \(H_ \nu^{(1)}(x)\) via Taylor expansions and via numerical computation of the ...
openaire   +2 more sources

Local Polynomial Regression and Filtering for a Versatile Mesh‐Free PDE Solver

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
A high‐order, mesh‐free finite difference method for solving differential equations is presented. Both derivative approximation and scheme stabilisation is carried out by parametric or non‐parametric local polynomial regression, making the resulting numerical method accurate, simple and versatile. Numerous numerical benchmark tests are investigated for
Alberto M. Gambaruto
wiley   +1 more source

Some special functions and cylindrical diffusion equation on α-time scale

open access: yesDemonstratio Mathematica
This article is dedicated to present various concepts on α\alpha -time scale, including power series, Taylor series, binomial series, exponential function, gamma function, and Bessel functions of the first kind.
Silindir Burcu   +3 more
doaj   +1 more source

A limit theorem for singular stochastic differential equations

open access: yesModern Stochastics: Theory and Applications, 2016
We study the weak limits of solutions to SDEs \[ dX_{n}(t)=a_{n}\big(X_{n}(t)\big)\hspace{0.1667em}dt+dW(t),\] where the sequence $\{a_{n}\}$ converges in some sense to $(c_{-}\mathbb{1}_{x0})/x+\gamma \delta _{0}$.
Andrey Pilipenko, Yuriy Prykhodko
doaj   +1 more source

Alternative Price Dynamics and Valuation of Flexible Strategies

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT In this article, we study the optimal operational strategy of production projects. We investigate different underlying price models and determine the optimal barriers of transition to suspension, recovery, or irreversible abandonment of productive activity.
Cristina Bertolosi   +2 more
wiley   +1 more source

Accurate Analytical Approximation for the Bessel Function J2(x)

open access: yesMathematical and Computational Applications
We obtain an accurate analytic approximation for the Bessel function J2(x) using an improved multipoint quasirational approximation technique (MPQA). This new approximation is valid for all real values of the variable x, with a maximum absolute error of ...
Pablo Martin   +3 more
doaj   +1 more source

Received Probability of Vortex Modes Carried by Localized Wave of Bessel–Gaussian Amplitude Envelope in Turbulent Seawater

open access: yesJournal of Marine Science and Engineering, 2019
By using the two-frequency coherence function model of a beam in a turbulent medium and the localized wave theory of the polychromatic beam, we develop the spectrum average mutual coherence function of the localized wave of Bessel−Gaussian ...
Shibao Deng, Yun Zhu, Yixin Zhang
doaj   +1 more source

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

open access: yesLaser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

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