نتایج جستجو برای: kelvin model
تعداد نتایج: 2107637 فیلتر نتایج به سال:
Rayleigh-Taylor and Kelvin-Helmholtz instability Our proposed studies are rather specialized; they are in ranges of parameters not previously investigated or they focus on topics for which, to our knowledge, there is no prior literature. Three such topics are: (1) application of viscous and viscoelastic potential flow to Kelvin-Helmholz instability, (2) stress induced cavitation and (3) solubil...
A Survey on Buckling and Vibrations of a Viscoelastic Beam under Distributed Lateral and Axial Loads
In this paper, based on Kelvin and Linear Standard Solid models, dynamic response and the buckling load of a viscoelastic beam under lateral and axial loads have been determined. The governing equations have been extracted using Euler and Timoshenko theories and their analytical solutions have been obtained by using the eigenfunctions expansion method. Buckling load have been calculated by us...
The effect of surface tension (theKelvin effect) on the equilibrium radius of an aqueous solution drop at fractional relative humidity h less than unity is analyzed mathematically. Expressions for the lowest-order corrections to the equilibrium radius and radius ratio (relative to the volume-equivalent dry radius rdry) due to the Kelvin effect are presented and compared with data for solution d...
The absorption of compressional and shear waves in many viscoelastic solids has been experimentally shown to follow a frequency power law. It is now well established that this type of loss behavior can be modeled using fractional derivatives. However, previous fractional constitutive equations for viscoelastic media are based on temporal fractional derivatives. These operators are non-local in ...
over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...
The authors use linear analysis for a simple model to study the evolution of convectively coupled waves (CCWs) in a background shear and background moisture mimicking the observed structure of the Madden– Julian oscillation (MJO). This is motivated by the observation, in an idealized setting, of intraseasonal twoway interactions between CCWs and a background wind. It is found here that profiles...
Solar prominences are cool 10(4) kelvin plasma clouds supported in the surrounding 10(6) kelvin coronal plasma by as-yet-undetermined mechanisms. Observations from Hinode show fine-scale threadlike structures oscillating in the plane of the sky with periods of several minutes. We suggest that these represent Alfvén waves propagating on coronal magnetic field lines and that these may play a role...
I constructed a temperature history for different parts of the world from 169 glacier length records. Using a first-order theory of glacier dynamics, I related changes in glacier length to changes in temperature. The derived temperature histories are fully independent of proxy and instrumental data used in earlier reconstructions. Moderate global warming started in the middle of the 19th centur...
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