Results 91 to 100 of about 2,516,410 (332)

Transmuted Kumaraswamy Weibull Distribution with Covariates Regression Modelling to Analyze Reliability Data

open access: yesJournal of Statistical Theory and Applications (JSTA), 2020
This paper investigates the potential usefulness of the transmuted Kumaraswamy Weibull distribution by using quadratic rank transmutation map technique for modelling reliability data.
Muhammad Shuaib Khan   +2 more
doaj   +1 more source

TRAJECTORIES OF QUADRATIC OPERATORS WHICH MAP TO ITSELF

open access: yes, 2019
In this paper described some quadratic operators which map the dimensional simplex of idempotent measures to itself. Such operators are divided to two classes: the first class contains all - cubic matrices with nonpositive entries which
Juraev, Ilkhomjon Tursunmukhammedovich
core  

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

open access: yesAdvanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang   +7 more
wiley   +1 more source

On quadratic symplectic mappings

open access: yesMathematische Zeitschrift, 1994
In this paper the algebraic form of quadratic symplectic mappings in \(\mathbb{R}^{2n}\) with the standard symplectic structure is investigated. For the planar case this leads to the familiar Hénon maps. For \(n \geq 2\) it is shown that any quadratic map can be written as product of a shear map to be multiplied from the right and left by affine ...
openaire   +2 more sources

One-dimensional approximations for a quadratic Ikeda map

open access: yes, 1984
Some properties of the quadratic Ikeda map zn+1 = a + kzn exp (i|zn|2), z complex, are reviewed. Vario us one-dimensional approximations to the map and its strange attractor are presented. © 1984.
Eilbeck, J. C., Carr, J.
core  

Quadratic mean diameter (DBH) map for 2020

open access: yes
This dataset provides a high-resolution (10 m) pan-European map of forest Quadratic mean diameter (DBH) for the year 2020, along with an accompanying standard deviation layer.
Norwegian Institute of Bioeconomy Research (NIBIO)
core   +1 more source

A hybrid of fuzzy theory and quadratic function for estimating and refining transmission map [PDF]

open access: yes, 2019
© TÜBİTAK In photographs captured in outdoor environments, particles in the air cause light attenuation and degrade image quality. This effect is especially obvious in hazy environments.
Young, KY, Lin, CJ, Jhang, JY, Lin, CT
core   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang   +14 more
wiley   +1 more source

On quadratic homogeneous quasi-translations

open access: yes, 2010
In this paper, we describe the structure of quadratic homogeneous quasi-translations, and we prove that, in dimension 9 and less, such a map is linearly triangularizable, or equivalently a quadratic homogeneous nice derivation is linearly conjugate to a ...
Xiaosong Sun, Sun, Xiaosong
core   +1 more source

Gradient algorithms for quadratic optimization with fast convergence rates [PDF]

open access: yes, 2011
Chebyshev polynomials, Conjugate gradient, Krylov space, Logistic map, Quadratic operator, Steepest descent,
Luc Pronzato   +4 more
core   +1 more source

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