Results 11 to 20 of about 1,593,652 (317)

Tongue Image Alignment via Conformal Mapping for Disease Detection

open access: yesIEEE Access, 2020
Tongue image analysis has been an active study in medical imaging. Existing tongue image processing approaches deal with the issue of image alignment in oversimplified ways.
Jian Wu, Bob Zhang, Yong Xu, David Zhang
doaj   +2 more sources

Numerical Conformal Mapping

open access: yesNotices of the American Mathematical Society
Most conformal maps cannot be found analytically, so when computers began to appear in the 1950s and 1960s, the field of numerical conformal mapping was born. The availability of so many tools for numerical conformal mapping may suggest that the problem is easy, but in fact there are challenges.
L. Trefethen
openaire   +3 more sources

Accessory parameters in conformal mapping: exploiting the isomonodromic tau function for Painlevé VI. [PDF]

open access: yesProc Math Phys Eng Sci, 2018
We present a novel method to solve the accessory parameter problem arising in constructing conformal maps from a canonical simply connected planar region to the interior of a circular arc quadrilateral. The Schwarz–Christoffel accessory parameter problem,
Anselmo T   +3 more
europepmc   +2 more sources

Conformal mapping for multiple terminals. [PDF]

open access: yesSci Rep, 2016
Conformal mapping is an important mathematical tool that can be used to solve various physical and engineering problems in many fields, including electrostatics, fluid mechanics, classical mechanics, and transformation optics.
Wang W, Ma W, Wang Q, Ren H.
europepmc   +3 more sources

Conformal mapping of the Borel plane: Going beyond perturbative QCD [PDF]

open access: yesPhysical Review D, 2020
The power corrections in the Operator Product Expansion (OPE) of QCD correlators can be viewed mathematically as an illustration of the transseries concept, which allows to recover a function from its asymptotic divergent expansion.
I. Caprini
semanticscholar   +1 more source

Conformal IRS-Empowered MIMO-OFDM: Channel Estimation and Environment Mapping

open access: yesIEEE Transactions on Communications, 2022
We consider the channel estimation and environment mapping problems in multiple-input multiple-output orthogonal frequency division multiplexing systems empowered by intelligent reconfigurable surfaces (IRSs).
Yuxing Lin   +3 more
semanticscholar   +1 more source

Logarithm conformal mapping brings the cloaking effect. [PDF]

open access: yesSci Rep, 2014
Over the past years, invisibility cloaks have been extensively discussed since transformation optics emerges. Generally, the electromagnetic parameters of invisibility cloaks are complicated tensors, yet difficult to realize.
Xu L, Chen H.
europepmc   +2 more sources

Numerical Conformal Mapping with Rational Functions [PDF]

open access: yesComputational methods in Function Theory, 2019
New algorithms are presented for numerical conformal mapping based on rational approximations and the solution of Dirichlet problems by least-squares fitting on the boundary.
L. Trefethen
semanticscholar   +1 more source

How round is a protein? Exploring protein structures for globularity using conformal mapping. [PDF]

open access: yesFront Mol Biosci, 2014
We present a new algorithm that automatically computes a measure of the geometric difference between the surface of a protein and a round sphere. The algorithm takes as input two triangulated genus zero surfaces representing the protein and the round ...
Hass J, Koehl P.
europepmc   +2 more sources

Ships Added Mass Effect on a Flexible Mooring Dolphin in Berthing Manoeuvre

open access: yesJournal of Marine Science and Engineering, 2021
This paper deals with the hydrodynamic effect of the ship on a flexible dolphin during a mooring manoeuvre. The hydrodynamic effect refers to the change in momentum of the surrounding fluid, which is defined by the concept of added mass.
Aleksander Grm
doaj   +1 more source

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