Results 31 to 40 of about 3,909 (206)
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT This study examines the combined impact of different thermal conductivity and viscosity on unsteady non‐Newtonian Casson fluid flow of incompressible, electrical conductivity in a porous vertical channel with convective cooling walls, uniform magnetic field, and constant pressure gradient.
A. S. Adeyemo +2 more
wiley +1 more source
Launch Uncertainty Analysis Under Barrel Erosion Using Experiments and Random Matrix Theory
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT The effects of barrel erosion on artillery firing performance have long been a subject of concern, but its effect on launch uncertainty has yet to be investigated. This article explores the influence of barrel erosion on the interior ballistic mechanical properties and launch disturbances.
Chengyuan Guo +5 more
wiley +1 more source
Chebyshev-like methods and quadratic equations.
Journal of Numerical Analysis and Approximation Theory, 1999 Summary: We use the classical Kantorovich technique to study the convergence of a new uniparametric family of third order iterative process defined in Banach spaces. We obtain information about this family by the study of the same family in the real case.
J. A. Ezquerro +3 more
openaire +3 more sources
Personalized Differential Privacy for Ridge Regression Under Output Perturbation
Naval Research Logistics (NRL), EarlyView.ABSTRACT The increased application of machine learning (ML) in sensitive domains requires protecting the training data through privacy frameworks, such as differential privacy (DP). Traditional DP enforces a uniform privacy level ε$$ \varepsilon $$, which bounds the maximum privacy loss that each data point in the dataset is allowed to incur.
Krishna Acharya +3 more
wiley +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.We study the impact of observation‐error correlations in data assimilation using both a simple idealised system and a more realistic configuration. A spectral analysis of data assimilation in the idealised system allows us to gain insights on the effect of observation‐error correlations, which are then validated using the realistic configuration.
Olivier Goux +4 more
wiley +1 more source
Generalized Markoff equations and Chebyshev polynomials
Journal of Number Theory, 2015 Abstract The Markoff equation is x 2 + y 2 + z 2 = 3 x y z , and all of the positive integer solutions of this equation occur on one tree generated from ( 1 , 1 , 1 ) , called the Markoff tree. In this paper, we consider trees of solutions to x 2 + y 2 + z 2 = x y z + A
openaire +2 more sources
Advanced Quantum Technologies, EarlyView.Quantum algorithms for differential equations are developed with applications in computational fluid dynamics. The methods follow an iterative simulation framework, implementing Jacobi and Gauss–Seidel schemes on quantum registers through linear combinations of unitaries.
Chelsea A. Williams +4 more
wiley +1 more source
Collocation with Chebyshev polynomials for Symm's integral equation on an interval [PDF]
The Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1992 AbstractA collocation method for Symm's integral equation on an interval (a first-kind integral equation with logarithmic kernel), in which the basis functions are Chebyshev polynomials multiplied by an appropriate singular function and the collocation points are Chebyshev points, is analysed.
Ernst P. Stephan, Ian H. Sloan
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Precise Measurement of Complex Coefficient Filters by Using Square Waves†
IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.Usually, the frequency characteristics of the complex filter can be examined by applying a pair of quadrature sinusoidal waves (cosωt$$ \cos \omega t $$ and sinωt$$ \sin \omega t $$) to a FUT (filter under test). While this method is recognized for its accuracy, it requires two sinusoidal test signals with tightly matched amplitudes and a strict 90°$$ {
Kazuhiro Shouno +2 more
wiley +1 more source
IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.A modulated light irradiation method is proposed for estimating the working voltage of a target cell in a photovoltaic (PV) module without electrical contacts. However, the proposed method requires a 32‐turn coil inserted into a PV module output in series to boost the sensitivity of an alternating current (AC) clamp sensor with low sensitivity, making ...
Yasuyuki Kobayashi +2 more
wiley +1 more source