Results 51 to 60 of about 359,903 (228)

Ameliorating the Courant-Friedrichs-Lewy condition in spherical coordinates: A double FFT filter method for general relativistic MHD in dynamical spacetimes [PDF]

open access: green, 2023
Liwei Ji   +7 more
openalex   +3 more sources

Ex-Movère. Narrating Places with Images

open access: yesimg journal, 2023
Through paintings, engravings, short texts it is possible to know a place and at the same time discover the propensities, interests, ideological inclinations of each author.
Alessandra Palma
doaj   +1 more source

Asymptotic analysis of Leray solution for the incompressible NSE with damping

open access: yesDemonstratio Mathematica
In 2008, Cai and Jiu showed that the Cauchy problem of the Navier-Stokes equations, with damping α∣u∣β−1u\alpha {| u| }^{\beta -1}u for α>0\alpha \gt 0 and β≥1\beta \ge 1 has global weak solutions in L2(R3){L}^{2}\left({{\mathbb{R}}}^{3}).
Blel Mongi, Benameur Jamel
doaj   +1 more source

0331 Writing a Biography of a Missing Character: Friedrich Weinwurm (1885–1942?)

open access: yesRIHA Journal
This article introduces the life and work of Friedrich Weinwurm (1895–1942?), an architect who played a pivotal role in shaping interwar architecture in Slovakia but has remained largely absent from scholarly discourse.
Henrieta Moravčíková
doaj   +1 more source

Singularity Processing Method of Microstrip Line Edge Based on LOD-FDTD

open access: yesInternational Journal of Antennas and Propagation, 2014
In order to improve the performance of the accuracy and efficiency for analyzing the microstrip structure, a singularity processing method is proposed theoretically and experimentally based on the fundamental locally one-dimensional finite difference ...
Lei Li, Xin Zhang, Yingsong Li
doaj   +1 more source

Numerical evolution of axisymmetric, isolated systems in General Relativity [PDF]

open access: yes, 2002
We describe in this article a new code for evolving axisymmetric isolated systems in general relativity. Such systems are described by asymptotically flat space-times which have the property that they admit a conformal extension.
A. Ashtekar   +19 more
core   +2 more sources

Media Genealogy: Technological and Historical Engagements of Power — Introduction

open access: yesInternational Journal of Communication, 2016
This introductory article offers theoretical and methodological demarcations for media genealogy, which operates in the work of each scholar interviewed for this special issue.
Alexander Monea, Jeremy Packer
doaj   +2 more sources

A Compact Unconditionally Stable Method for Time-Domain Maxwell's Equations

open access: yesInternational Journal of Antennas and Propagation, 2013
Higher order unconditionally stable methods are effective ways for simulating field behaviors of electromagnetic problems since they are free of Courant-Friedrich-Levy conditions. The development of accurate schemes with less computational expenditure is
Zhuo Su, Yongqin Yang, Yunliang Long
doaj   +1 more source

Global Affinities: The Natural Method and Anomalous Plants in the Nineteenth Century

open access: yesHoST, 2021
Approaching from an analysis of the work of Robert Brown (1773-1858) and Friedrich Welwitsch (1806–1872) on Rafflesia and Welwitschia, this article explores how the “natural method” became a tool for understanding extra-European flora in the nineteenth ...
Kury Lorelai, Albuquerque Sara
doaj   +1 more source

Numerical calculations near spatial infinity [PDF]

open access: yes, 2006
After describing in short some problems and methods regarding the smoothness of null infinity for isolated systems, I present numerical calculations in which both spatial and null infinity can be studied.
Zenginoglu, Anil
core   +2 more sources

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