Results 61 to 70 of about 2,125 (287)
Mathematical Methods in the Applied Sciences, EarlyView.A highly accurate numerical method is given for the solution of boundary value problem of generalized Bagley‐Torvik (BgT) equation with Caputo derivative of order 0<β<2$$ 0<\beta <2 $$ by using the collocation‐shooting method (C‐SM). The collocation solution is constructed in the space Sm+1(1)$$ {S}_{m+1}^{(1)} $$ as piecewise polynomials of degree at ...
Suzan Cival Buranay +2 more
wiley +1 more source
Simulation of the acoustic wave propagation using a meshless method
EPJ Web of Conferences, 2017 This paper presents numerical simulations of the acoustic wave propagation phenomenon modelled via Linearized Euler equations. A meshless method based on collocation of the strong form of the equation system is adopted.
Bajko J. +3 more
doaj +1 more source
Dizhen xuebao, 2020 基于非均匀分布的陆地重力观测数据，重构局部重力场模型是区域重力资料处理与解释的重要环节。本文对比了多种局部重力场建模方法，并以EGM2008模型提供的自由空气重力异常模型重采样数据进行测试，综合比较了不同噪声条件下不同建模方法的实际效果。结果表明：在不同噪声水平下，优选出适合重力位场问题的协方差函数后，最小二乘配置法的建模效果优于其它方法。
Mingming Ruan, Shi Chen, Jiancheng Han
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Nordgren PINNs to VQE: Advancing Hydraulic Fracturing Simulations in Shale Reservoirs
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT This study advances hydraulic fracturing simulations in shale reservoirs using two computational paradigms, Physics‐Informed Neural Networks (PINNs) and the Variational Quantum Eigensolver (VQE). PINNs were employed to solve Nordgren's equation, which governs fracture width evolution, by embedding physical laws into the neural network ...
Dennis Delali Kwesi Wayo +7 more
wiley +1 more source
Numerical Approach for Solving the Fractional Pantograph Delay Differential Equations
Complexity, 2022 A new class of polynomials investigates the numerical solution of the fractional pantograph delay ordinary differential equations. These polynomials are equipped with an auxiliary unknown parameter a, which is obtained using the collocation and least ...
Jalal Hajishafieiha, Saeid Abbasbandy
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Sustainable Development, EarlyView.ABSTRACT Urbanization is a defining feature of contemporary development, shaping economic opportunities, social structures, and health outcomes. This study examines the influence of urbanization on life expectancy in Bangladesh, with particular attention to the role of the energy mix and industrialization.
Md. Hasanur Rahman +3 more
wiley +1 more source
Journal of Taibah University for Science, 2018 This paper deals with the numerical solution of Volterra–Fredholm integral equations. In this work, we approximate the unknown functions based on the shifted orthonormal Bernstein polynomials, in conjunction with the least-squares approximation method ...
Esmail Hesameddini, Mehdi Shahbazi
doaj +1 more source
Sensors, 2016 Recent studies on the influence of the anomalous gravity field in GNSS/INS applications have shown that neglecting the impact of the deflection of vertical in aerial surveys induces horizontal and vertical errors in the measurement of an object that is ...
Riccardo Barzaghi +3 more
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Examining the Role of Economic Complexity and Climate Readiness in the Climate‐Fishing Nexus
Sustainable Development, EarlyView.ABSTRACT This paper investigates the climate‐fisheries association in Gulf Cooperation Council (GCC) nations from 1999 to 2022. A key objective is to explore the role of both the economic complexity index (ECI) and the climate readiness factor (READ) in the climate‐fishing nexus.
Mohamed Sami Ben Ali +2 more
wiley +1 more source
, 1976 The least squares collocation algorithm for estimating gravity anomalies from geodetic data is shown to be an application of the well known regression equations which provide the mean and covariance of a random vector (gravity anomalies) given a ...
Lowrey, B., Argentiero, P.
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