Results 31 to 40 of about 1,750,116 (197)

Oscillation Conditions for Solutions of First Order Piecewise Constant Neutral Differential Equations

open access: yesمجلة بغداد للعلوم
The research seeks to examine a new form of equations as well as possible criteria for oscillation and non-oscillation for all solutions of first-order neutral differential equations with the piecewise constant, whether these oscillatory solutions are ...
Sora Ali Majeed, Hussain Ali Mohamad
doaj   +1 more source

A Survey on the Oscillation of Difference Equations with Constant Delays

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2019
In this survey, necessary and sufficient conditions for the oscillation of all solutions of delay difference equations with one or several constant arguments, in terms of the characteristic equation, are presented.
Ioannis Stavroulakis
doaj   +1 more source

Impacts of the Madden-Julian oscillation on Australian rainfall and circulation [PDF]

open access: yes, 2009
Impacts of the Madden¿Julian oscillation (MJO) on Australian rainfall and circulation are examined during all four seasons. The authors examine circulation anomalies and a number of different rainfall metrics, each composited contemporaneously for eight ...
Meinke, H.B.   +4 more
core   +1 more source

Numerical Analysis of Aeroacoustic Characteristics around a Cylinder under Constant Amplitude Oscillation

open access: yesEnergies, 2022
The present study numerically investigated a cylinder under oscillating motions at a low Reynolds number. The effects of two oscillation frequencies and amplitudes on the lift drag coefficient, near-field surface pressure fluctuation, and far-field noise
Peixun Yu   +3 more
doaj   +1 more source

Necessary and Sufficient Conditions of Oscillation in First Order Neutral Delay Differential Equations

open access: yesAbstract and Applied Analysis, 2014
We are concerned with oscillation of the first order neutral delay differential equation [x(t)−px(t−τ)]′+qx(t−σ)=0 with constant coefficients, and we obtain some necessary and sufficient conditions of oscillation for all the solutions in respective cases
Songbai Guo, Youjian Shen, Binbin Shi
doaj   +1 more source

New equivalent conditions for Hardy-type inequalities [PDF]

open access: yesMathematica Bohemica
We consider a Hardy-type inequality with Oinarov's kernel in weighted Lebesgue spaces. We give new equivalent conditions for satisfying the inequality, and provide lower and upper estimates for its best constant.
Alois Kufner   +3 more
doaj   +1 more source

Superalgebra and Harmonic Oscillator with Constant Positive Curvature

open access: yesInternational Journal of Theoretical Physics, 2007
This paper has been ...
Sadeghi, J., Moayyeri, H.
openaire   +3 more sources

Tapping mode of an atomic force microscope with a probe cantilever of a low spring constant

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук
The work presents mathematical simulation results of tapping interaction of an atomic force microscope (AFM) probe with low (0.1 N/m) spring constant of its cantilever with samples of materials with the Young moduli of 0.01; 0.1; 1; 10 GPa under varying ...
S. O. Abetkovskaia   +2 more
doaj   +1 more source

Magnon-driven dynamics of frustrated skyrmion in synthetic antiferromagnets: effect of skyrmion helicity oscillation

open access: yesNew Journal of Physics, 2022
A theoretical study on the interplay of frustrated skyrmion and magnons should reveal new physics and future experiment designs. In this study, we investigate the magnon-driven dynamics of frustrated skyrmion in synthetic antiferromagnets based on ...
Z Jin   +10 more
doaj   +1 more source

Computational Fluid Dynamics Approach for Oscillating and Interacting Convective Flows

open access: yesFluids, 2022
The oscillation and collective behavior of convective flows is studied by a computational fluid dynamics approach. More specifically, the rising dynamics of heated fluid columns is simulated in gravitational field using a simplified 2D geometry.
Attila Gergely, Zoltán Néda
doaj   +1 more source

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