Results 71 to 80 of about 2,116 (163)

Toward Transparency and Consistency: An Open‐Source Optics Parameterization for Clouds and Precipitation

open access: yesJournal of Advances in Modeling Earth Systems, Volume 17, Issue 3, March 2025.
Abstract In this study, a new open‐source package for cloud and precipitation modeling is introduced. Based on Mie theory and existing ice crystal data sets, the scheme generates optical properties for user‐defined gas bands, particle size distribution, and crystal habits, ensuring continuity across wide spectral bands and from small particles (clouds)
Jing Feng, Raymond Menzel, David Paynter
wiley   +1 more source

Multi‐Shot Estimation of Resonance Parameters of Late‐Time Radar Returns in Clutter

open access: yesIET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
A technique for estimating the resonant features of radar targets based on their late‐time returns (LTRs) is presented. Experimental results demonstrate that the technique is effective in scenarios where the target is embedded in significant clutter, and the signal‐to‐noise ratio in the LTRs is quite low.
Mihail S. Georgiev   +2 more
wiley   +1 more source

Threshold energies and poles for hadron physical problems by a model-independent universal algorithm

open access: yesPhysics Letters B, 2017
In this work we show how by using a Padé type analytical continuation scheme, based on the Schlessinger point method, it is possible to find higher production thresholds in hadron physical problems.
R.-A. Tripolt   +3 more
doaj   +1 more source

S-duality resurgence in SL(2) Chern-Simons theory

open access: yes, 2017
We find that an S-duality in SL(2) Chern-Simons theory for hyperbolic 3-manifolds emerges by the Borel resummation of a semiclassical expansion around a particular flat connection associated to the hyperbolic structure. We demonstrate it numerically with
Gang, Dongmin, Hatsuda, Yasuyuki
core   +1 more source

Approximations for Fractional Derivatives and Fractional Integrals Using Padé Approximation

open access: yesJournal of Applied Mathematics, Volume 2025, Issue 1, 2025.
This paper tackles the persistent challenge of slow convergence and numerical instability in the fractional calculus when applied to power series–representable functions fx=∑i=0∞cixi, limitations that compromise accuracy in scientific applications. A novel reformulation of fractional derivatives and integrals is achieved by applying Padé approximation ...
Ahmed M. Youssef   +4 more
wiley   +1 more source

Pad\'e approximants for truncated post-Newtonian neutron star models

open access: yes, 2000
Pad\'e approximants to truncated post-Newtonian neutron star models are constructed. The Pad\'e models converge faster to the general relativistic (GR) solution than the truncated post-Newtonian ones. The evolution of initial data using the Pad\'e models
Gopakumar, A.   +3 more
core   +1 more source

A Study of Solutions for Some Classes of PDEs Arising in Physics and Engineering Using Modified Reduced Differential Transform Method

open access: yesJournal of Applied Mathematics, Volume 2025, Issue 1, 2025.
This paper successfully employs a combined methodology that integrates the reduced differential transform approach, Laplace transform, and Padé approximants to solve diverse partial differential equations with real and complex variables. The proposed method, known as the modified reduced differential transform method (MRDTM), extends the interval of ...
Osama Alkhazaleh   +2 more
wiley   +1 more source

Modeling the Nonlinear–To–Linear Relationship Between Bulk and Pore Water Electrical Conductivity in Saturated Porous Media Using a Padé Approximant

open access: yesWater Resources Research, Volume 60, Issue 12, December 2024.
Abstract A petrophysical model that accurately relates bulk electrical conductivity (σ) to pore fluid conductivity (σw) is critical to the interpretation of geophysical measurements. Classical models are either only applicable over a limited salinity regime or incorrectly explain the nonlinear‐to‐linear behavior of the σ(σw) relationship. In this study,
Yongwei Fu   +3 more
wiley   +1 more source

Modeling the Lithium Ion/Electrode Battery Interface Using Fick’s Second Law of Diffusion, the Laplace Transform, Charge Transfer Functions, and a [4, 4] Padé Approximant

open access: yesInternational Journal of Electrochemistry, 2015
This work investigates a one-dimensional model for the solid-state diffusion in a LiC6/LiMnO2 rechargeable cell. This cell is used in hybrid electric vehicles.
John H. Summerfield, Charles N. Curtis
doaj   +1 more source

The Resurgence of the Cusp Anomalous Dimension

open access: yes, 2015
This work addresses the resurgent properties of the cusp anomalous dimension's strong coupling expansion, obtained from the integral Beisert-Eden-Staudacher (BES) equation.
Aniceto, Inês
core   +1 more source

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