Results 121 to 130 of about 14,670,895 (289)

Fermat's treatise on quadrature: A new reading [PDF]

The Treatise on Quadrature of Fermat (c. 1659), besides containing the first known proof of the computation of the area under a higher parabola, R x+m/n dx, or under a higher hyperbola, R x-m/n dx— with the appropriate limits of integration in each case—,
Josep Pla, Pelegrí Viader, Jaume Paradís   +2 more
core  

Spaceborne Distributed Array Processing for Precision Source Localization

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Satellite‐based signals intelligence and spectrum sensing increasingly rely on low‐latency signal localization. However, operational processing chains often remain ground‐based, stressing feeder links and limiting scalability as constellations grow.
Dany Mestas, Daniel Weinzierl, Thomas Delamotte, Hervé Legay, Andreas Knopp   +4 more
wiley   +1 more source

Laminated Composite Doubly-Curved Shell Structures II. Differential and Integral Quadrature. Strong Formulation Finite Element Method

, 2016
The title, “Laminated Composite Doubly-Curved Shell Structures. Differential and Integral Quadrature. Strong Form Finite Elements” illustrates the theme treated and the prospective followed during the composition of the present work.
TORNABENE, FRANCESCO, BACCIOCCHI, MICHELE, FANTUZZI, NICHOLAS, VIOLA, ERASMO   +3 more
core   +1 more source

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang, Zi Yu, Hui Peng, Zixuan Wang, Xiaokang Dai, Weirong Liu, Jing Wang   +6 more
wiley   +1 more source

Approximation of differential eigenvalue problems [PDF]

, 2013
To solve a one-dimensional second-order differential eigenvalue problem, we use the finite-element method with numerical integration. We analyze the influence of the quadrature formulas used on the error in the approximate eigenvalues and eigenelements ...
Solov'ev S.
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Benjamin Robins's New Principles of Gunnery and the Response From the British Mathematical, Educational, and Military World of the Mid‐Eighteenth Century

Journal for Eighteenth-Century Studies, EarlyView.
Abstract This article analyses to what degree Benjamin Robins's discoveries in his book New Principles of Gunnery, 1742, affected the British mathematical, military, and educational world of the mid‐eighteenth century. While it drew praise and critique from Europe, especially from the notable mathematician Leonhard Euler, his mathematical theories were
Samuel Dodson
wiley   +1 more source

Solution of magnetohydrodynamic flow in a rectangular duct by differential quadrature method

, 2004
The polynomial based differential quadrature and the Fourier expansion based differential quadrature method are applied to solve magnetohydrodynamic (MHD) flow equations in a rectangular duct in the presence of a transverse external oblique magnetic ...
Tezer, Münevver, Tezer-Sezgin, MÜNEVVER   +1 more
core   +1 more source

Composite marginal likelihood estimation of higher‐order diagnostic classification models under high dimensionality

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Although full‐information maximum likelihood (FIML) estimation is widely used for diagnostic classification models (DCMs), its computational efficiency deteriorates sharply in high‐dimensional settings. This scalability challenge is increasingly critical as DCMs are applied to large‐scale assessments, psychological testing and longitudinal ...
Minho Lee, Yon Soo Suh
wiley   +1 more source

Mixture multigroup structural equation modelling for ordinal data

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Social scientists often compare groups in terms of relations between latent variables (LV) (i.e. structural relations) using Structural Equation Modelling (SEM). LVs are measured indirectly by questionnaires; thus, measurement invariance must be evaluated before comparisons can be made. To efficiently compare many groups, the recently proposed
Andres F. Perez Alonso, Jeroen K. Vermunt, Yves Rosseel, Kim De Roover   +3 more
wiley   +1 more source

Static Analysis of Laminated Circular Plate using Differential Quadrature Method

, 2007
The aim of this study is the static analysis of laminated circular plate using differential quadrature method. The governing equations for cylindrical coordinates have been developed using first order shear deformation theory and solved using ...
Bansal, Shifali
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