Results 91 to 100 of about 6,388 (244)

Natural vibrations of thick circular plate based on the modified Mindlin theory

open access: yesArchives of Mechanics, 2014
Outline of the modified Mindlin theory is presented in which the Mindlin mathematical model with three differential equations of motion for total deflection and rotations is decomposed into a single equation for pure bending vibrations with transverse ...
I. Senjanovic   +3 more
doaj   +1 more source

Tuning Colloidal Stability and Photothermal Conversion Efficiency of Graphite Nanofluids via Anionic‐Nonionic Surfactant Engineering

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Graphite nanofluids were stabilized using a mixed SDS/Tween 80 surfactant system. The optimized formulation exhibited enhanced colloidal stability, red‐shifted UV–Vis absorption, and improved photothermal conversion under solar irradiation. Achieving stable dispersion of graphite flakes (GFs) in aqueous media remains a critical challenge in developing ...
Ahmad Chehade   +3 more
wiley   +1 more source

Integral relations among Bessel functions [PDF]

open access: yes, 1969
Inverse Laplace transformation of seemingly trivial identities is used to derive novel integral relations among ordinary and modified Bessel functions.
E. O. Schulz-DuBois
core   +1 more source

A distribution associated with the Kontorovich-Lebedev transform [PDF]

open access: yesOpuscula Mathematica, 2006
We show that in a sense of distributions \[\lim_{\varepsilon\to 0+} {1\over \pi^2} \tau\sinh\pi\tau \int_{\varepsilon}^{\infty} K_{i\tau}(y)K_{ix}(y){dy\over y} =\delta(\tau-x),\] where \(\delta\) is the Dirac distribution, \(\tau\), \(x\in\mathbb{R ...
Semyon B. Yakubovich
doaj  

Modeling and Output Optimization of Triboelectric Microphone for Acoustic Energy Harvesting

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work elucidates the fundamental multiphysics coupling mechanisms governing acoustic T‐phone, providing a critical theoretical foundation and a predictive design paradigm for the future engineering and deployment of next‐generation, self‐powered acoustic sensors.
Dan Liu   +6 more
wiley   +1 more source

Generalized series of Bessel functions [PDF]

open access: yes, 2002
Known series of Bessel functions, currently available in handbooks, and many of Neumann type, are generalized to arbitrary order. The underlying result is a Poisson formula due to Titchmarsh. This formula gives rise to a Neumann series involving modified
Al-Jarrah, A.   +5 more
core   +1 more source

Analysis of ( P , m ) $(P,\mathrm{m})$ -superquadratic function and related fractional integral inequalities with applications

open access: yesJournal of Inequalities and Applications
In the present work we establish for the first time a class of ( P , m ) $(P,\mathrm{m})$ -superquadratic functions and look into its features. Using them, we come up with the Jensen and Hermite–Hadamard inequalities, as well as the fractional versions ...
Dawood Khan   +2 more
doaj   +1 more source

Extended Riemann-Liouville type fractional derivative operator with applications

open access: yesOpen Mathematics, 2017
The main purpose of this paper is to introduce a class of new extended forms of the beta function, Gauss hypergeometric function and Appell-Lauricella hypergeometric functions by means of the modified Bessel function of the third kind.
Agarwal P., Nieto Juan J., Luo M.-J.
doaj   +1 more source

Dynamics of Heparin Translocations Through Solid‐State Nanopores

open access: yesELECTROPHORESIS, EarlyView.
Carbohydrates can be detected with solid‐state nanopores, but their kinetics of voltage‐driven passage are fast. To better understand the dynamics of passage of these biomolecules and the role of electrophoresis and electroosmosis, we studied the translocation characteristics of heparin as a function of salt concentration, pH and voltage polarity ...
Kexin Zhao   +5 more
wiley   +1 more source

Application of Bessel functions [PDF]

open access: yes, 2016
The purpose of this work is the introduction to the theory of Bessel differential equation and Bessel functions and its application to the problem of the vibration of a circular plate.
Lorenczyk, Jiří
core  

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