Results 11 to 20 of about 66,116 (307)

Relativistic oscillator of constant period [PDF]

open access: yesPhysical Review A, 1996
A relativistic oscillator whose period is independent of its energy is of great fundamental importance in both relativistic classical mechanics and relativistic quantum mechanics. In this work theoretical and computational investigations of such a constant period oscillator are reported, with emphasis on basic mathematical and physical properties of ...
Kim, JH   +3 more
openaire   +5 more sources

MSLED, neutrino oscillations and the cosmological constant [PDF]

open access: yesJournal of High Energy Physics, 2005
We explore the implications for neutrino masses and mixings within the minimal version of the supersymmetric large-extra-dimensions scenario (MSLED). This model was proposed in {\tt hep-ph/0404135} to extract the phenomenological implications of the promising recent attempt (in {\tt hep-th/0304256}) to address the cosmological constant problem ...
Matias, J., Burgess, C. P.
openaire   +2 more sources

Numerical Investigation of Flow Characteristics in a Centrifugal Pump Impeller with Sinusoidal Flow Rates of Different Oscillation Amplitudes [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
This study describes the large eddy simulations of a centrifugal pump impeller considering a sinusoidal flow rate and a constant rotation speed. Five different oscillation amplitudes of flow rate (A = 0.1Qd, 0.15Qd, 0.2Qd, 0.25Qd, and 0.3Qd, Qd indicates
Y. Li, W. Zhang, X. Chen
doaj   +1 more source

Frictional behavior of quartz gouge during slide-hold-slide considering normal stress oscillation

open access: yesInternational Journal of Coal Science & Technology, 2023
Slide-hold-slide (SHS) test is an essential experimental approach for studying the frictional stability of faults. The origin SHS framework was established based on  a consistent constant normal stress, which cannot truly reflect the stress disturbance ...
Kang Tao, Wengang Dang
doaj   +1 more source

Observation of Landau Level-Dependent Aharonov-Bohm-Like Oscillations in a Topological Insulator

open access: yesNanoscale Research Letters, 2020
We study the quantum oscillations in the BiSbTe3 topological insulator. In addition to the Shubnikov-de Haas (SdH) oscillation, the Aharonov-Bohm-like (ABL) oscillations are also observed.
Shiu-Ming Huang   +8 more
doaj   +1 more source

The cosmological constant and oscillating metrics [PDF]

open access: yesJournal of High Energy Physics, 2002
The presence of a cosmological constant, Lambda, in an action with higher powers of the curvature can produce rapidly oscillating metrics. We develop a perturbative approach for generating periodic solutions to the non-linear field equations for such actions based on a small amplitude expansion.
Collins, Hael, Holdom, Bob
openaire   +2 more sources

Fast Apparent Oscillations of Fundamental Constants

open access: yesAnnalen der Physik, 2020
AbstractPrecision spectroscopy of atoms and molecules allows one to search for and to put stringent limits on the variation of fundamental constants. These experiments are typically interpreted in terms of variations of the fine structure constant α and the electron‐to‐proton mass ratio .
Antypas, Dionysios   +5 more
openaire   +6 more sources

Conditional oscillation of half-linear Euler-type dynamic equations on time scales

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
We investigate second-order half-linear Euler-type dynamic equations on time scales with positive periodic coefficients. We show that these equations are conditionally oscillatory, i.e., there exists a sharp borderline (a constant given by the ...
Petr Hasil, J. Vítovec
doaj   +1 more source

Oscillation and non-oscillation criterion for Riemann–Weber type half-linear differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
By the combination of the modified half-linear Prüfer method and the Riccati technique, we study oscillatory properties of half-linear differential equations.
Petr Hasil, Michal Veselý
doaj   +1 more source

Mechanism of contraction rhythm homeostasis for hyperthermal sarcomeric oscillations of neonatal cardiomyocytes

open access: yesScientific Reports, 2020
The heart rhythm is maintained by oscillatory changes in [Ca2+]. However, it has been suggested that the rapid drop in blood pressure that occurs with a slow decrease in [Ca2+] preceding early diastolic filling is related to the mechanism of rapid ...
Seine A. Shintani   +2 more
doaj   +1 more source

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