Results 31 to 40 of about 348,499 (317)

Global weak solution of 3D-NSE with exponential damping

open access: yesOpen Mathematics, 2022
In this paper, we prove the global existence of incompressible Navier-Stokes equations with damping α(eβ∣u∣2−1)u\alpha \left({e}^{\beta | u{| }^{2}}-1)u, where we use the Friedrich method and some new tools.
Benameur Jamel
doaj   +1 more source

Local well-posedness of the inertial Qian–Sheng’s Q-tensor dynamical model near uniaxial equilibrium

open access: yesBoundary Value Problems, 2021
We consider the inertial Qian–Sheng’s Q-tensor dynamical model for the nematic liquid crystal flow, which can be viewed as a system coupling the hyperbolic-type equations for the Q-tensor parameter with the incompressible Navier–Stokes equations for the ...
Xiaoyuan Wang, Sirui Li, Tingting Wang
doaj   +1 more source

Hybrid FDTD algorithm for electromagnetic analysis of fine structures

open access: yesResults in Physics, 2021
A new hybrid Finite-Difference Time-Domain (hybrid FDTD) algorithm is proposed in this paper. This hybrid FDTD method combines the superiorities of explicit unconditionally stable FDTD (US-FDTD) and traditional FDTD methods to achieve unconditional ...
Sihan Zhao   +4 more
doaj   +1 more source

Complex Envelope Approximate Crank-Nicolson Method and Its Open Boundary Implementation for Bandpass Problem

open access: yesIEEE Access, 2021
To efficiently simulate the bandpass electromagnetic problems by employing the finite-difference time-domain (FDTD) algorithm, unconditionally stable implementation is proposed based upon the complex envelope method and the Crank-Nicolson Direct ...
Shihong Wu   +4 more
doaj   +1 more source

Did Schelling Misunderstand Fichte’s Transcendental Method? [PDF]

open access: yes, 2014
The Fichte-Schelling Correspondence interweaves intriguing personal stories and philosophical combat. One of the sadder personal stories involves Schelling getting wind of Fichte’s remark to Friedrich Schlegel that he did not understand transcendental ...
Vater, Michael
core   +2 more sources

Frank Lloyd Wright and the play with geometric abstraction

open access: yesFestival dell'Architettura Magazine, 2020
Friedrich Fröbel is known in history as the creator of the Kindergarten, a pedagogical institution established in Germany in 1837 that spread all over the world in fifty years.
Cosimo Monteleone
doaj   +1 more source

Numerical relativity with the conformal field equations [PDF]

open access: yes, 2002
I discuss the conformal approach to the numerical simulation of radiating isolated systems in general relativity. The method is based on conformal compactification and a reformulation of the Einstein equations in terms of rescaled variables, the so ...
Husa, Sascha
core   +2 more sources

Nietzsche and Levinas against Innocence

open access: yesReligions, 2022
There cannot perhaps be two more polarly opposed philosophers than Friedrich Nietzsche and Emmanuel Levinas, and yet when it comes to instituting moral ideals or establishing moral principles, they both paradoxically converge in suspecting them as ...
Michael Barber
doaj   +1 more source

A Brief History and Practical Applications in DNA Extraction

open access: yesCHIMIA, 2020
In the late 1860s, DNA was first identified by the Swiss physician and biochemist Friedrich Miescher. Since this time, we have solved its structure, learned how DNA divides in our cells, and elucidated molecular mechanisms for the transmission ...
Hailey L. Gahlon
doaj   +1 more source

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