Results 111 to 120 of about 3,194 (297)

Space-time spectral methods for PDEs on irregular domains

open access: yes
Spectral methods are used to solve partial differential equations numerically. When the solution is analytic, the rate of convergence of the numerical solution is exponential; that is, the error decays exponentially.
Wilegoda Liyanage, Chandramali Piyasundara
core  

Preconditioned Chebyshev collocation for non-Newtonian fluid flows

open access: yes, 1994
A Chebyshev collocation method is applied to non-Newtonian fluid flows. The collocation equations are preconditioned by finite elements with a domain decomposition for curvy geometries.
International Conference on Spectral and High Order Methods ICOSAHOM '92   +2 more
core   +1 more source

Speciation with gene flow

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long   +7 more
wiley   +1 more source

Numerical treatments of nonlinear Burgers–Fisher equation via a combined approximation technique

open access: yesKuwait Journal of Science
A combined spectral matrix collocation strategy is presented to solve the time-dependent nonlinear Burgers–Fisher equation pertaining to various important physical mechanisms such as advection, diffusion, and logistic reaction.
Mohammad Izadi, Hari Mohan Srivastava
doaj   +1 more source

An Efficient Collocation Method for a Class of Boundary Value Problems Arising in Mathematical Physics and Geometry

open access: yesAbstract and Applied Analysis, 2014
We present a numerical method for a class of boundary value problems on the unit interval which feature a type of power-law nonlinearity. In order to numerically solve this type of nonlinear boundary value problems, we construct a kind of spectral ...
A. H. Bhrawy   +2 more
doaj   +1 more source

Towards operational assimilation of surface‐sensitive microwave radiances over land at Environment and Climate Change Canada: Investigation of key factors using a 1D‐EnVar framework

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The study evaluates five factors affecting the assimilation of surface‐sensitive Advanced Microwave Sounding Unit‐A (AMSU‐A) radiances over land, including the simultaneous estimation of surface emissivity and the standard set of state variables, to improve numerical weather prediction (NWP) at Environment and Climate Change Canada (ECCC).
Zheng Qi Wang   +4 more
wiley   +1 more source

Collocation spectral methods in the solution of poisson equation

open access: yes, 1998
The Poisson equation is a very important partial differential equation for many branches of science and engineering. A fast, robust and accurate Poisson equation solver can find immediate applications in many fields such as electrical engineering ...
Su, Yuhong
core  

Sustainable Healthy Diet Transitions: An Examination of Media Discourse Concerning Beef in the United Kingdom From 2018 to 2022

open access: yesSustainable Development, EarlyView.
ABSTRACT The role of diet in individual and planetary health is increasingly scrutinised as consumers are encouraged to make food choices that balance health and sustainability, particularly with beef. While prior research has considered reduction from the perspective of alternate product acceptance, the social context of beef is less understood. Media
Sean Tanner, Mary McCarthy, David Giles
wiley   +1 more source

Finite Difference and Chebyshev Collocation for Time-Fractional and Riesz Space Distributed-Order Advection–Diffusion Equation with Time-Delay

open access: yesFractal and Fractional
In this paper, we have established a numerical method for a class of time-fractional and Riesz space distributed-order advection–diffusion equation with time-delay.
Fang Wang, Yuxue Chen, Yuting Liu
doaj   +1 more source

Critical Multilingual Language Awareness, Antiracism, and Raciolinguicized Subjectivities in Teacher Education

open access: yesTESOL Quarterly, EarlyView.
Abstract Race and language collaborate in structuring educational inequities, creating urgency for teacher education to equip all teachers to equitably serve racialized multilinguals as antiracist language educators. Emphasizing the inseparability of racial and linguistic justice, this article examines teacher candidates' (TCs') learning journeys ...
Monica Shank Lauwo
wiley   +1 more source

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