Results 21 to 30 of about 3,468,054 (198)
Damping-Antidamping Effect on Comets Motion [PDF]
, 2013 We make an observation about Galilean transformation on a 1-D mass variable systems which leads us to the right way to deal with mass variable systems.
Juarez, E. M., Lopez, G. V.
core +1 more source
Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass
Sensors, 2018 In the working process, the load mass of the thrust magnetic bearing has a significant change. If the load mass changes greatly, the original fixed control parameters cannot ensure that the system is in the optimal stable suspension state, and the ...
Lingling Zhang
doaj +1 more source
X-Ray Properties of Optically Variable Low-mass AGN Candidates
The Astrophysical Journal, 2023 We present an X-ray analysis of 14 nearby ( z < 0.044) active galactic nuclei (AGNs) in low-mass galaxies ( M _* ≲ 5 × 10 ^9 M _⊙ ) selected based on their optical variability.
Alexander Messick +3 more
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DARK MATTER WITH VARIABLE MASSES [PDF]
International Journal of Modern Physics D, 1993 String effective theories contain a dilaton scalar field which couples to gravity, matter and radiation. In general, particle masses will have different dilaton couplings. We can always choose a conformal frame in which baryons have constant masses while (nonbaryonic) dark matter have variable masses, in the context of a scalar-tensor gravity theory ...
openaire +2 more sources
Low mass variable stars in the globular cluster NGC 6397 [PDF]
, 2017 We have conducted a photometric survey of the globular cluster NGC 6397 in a search for variable stars. We obtained ~11h of time-resolved photometric images with one ne European Southern Observatory-Very Large Telescope using the FOcal Reducer and low ...
Costa, J. E. S. +2 more
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Mechanistic Study of a Low Frequency Piezoelectric Motor With Natural Frequency Adjustment Method
IEEE Access, 2023 A variable frequency piezoelectric motor is studied, which can generate rotational motion under the excitation of variable-mode vibration response units.
Xiaotao Li +5 more
doaj +1 more source
Snowfall Variability Dictates Glacier Mass Balance Variability in Himalaya-Karakoram [PDF]
Scientific Reports, 2019 AbstractGlaciers in the Himalaya-Karakoram (HK) are critical for ensuring water-security of a large fraction of world’s population that is vulnerable to climate impacts. However, the sensitivity of HK glaciers to changes in meteorological forcing remains largely unknown.
Pankaj Kumar +5 more
openaire +2 more sources
A mass transportation approach for Sobolev inequalities in variable exponent spaces [PDF]
, 2015 In this paper we provide a proof of the Sobolev-Poincar\'e inequality for variable exponent spaces by means of mass transportation methods. The importance of this approach is that the method is exible enough to deal with different inequalities.
Bonder, Julián Fernández +2 more
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Infrared problem for the Nelson model on static space-times [PDF]
, 2011 We consider the Nelson model with variable coefficients and investigate the problem of existence of a ground state and the removal of the ultraviolet cutoff.
A. Arai +36 more
core +3 more sources
6-year periodicity and variable synchronicity in a mass-flowering plant. [PDF]
PLoS ONE, 2011 Periodical organisms, such as bamboos and periodical cicadas, are very famous for their synchronous reproduction. In bamboos and other periodical plants, the synchronicity of mass-flowering and withering has been often reported indicating these species ...
Satoshi Kakishima +3 more
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