谷物
发表于 2025-3-30 11:09:08
Rainer Diaz-Bone,Christoph Weischero characterize the kinetic energy of the grains. Further tests of the analogy with gas kinetic theory have resulted in investigations into the collective behaviour of the grains, and the diflusion coefficient. Positron Emission Particle Tracking has been used to follow the motion of a single grain w
走调
发表于 2025-3-30 13:56:10
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bronchodilator
发表于 2025-3-30 17:48:56
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祝贺
发表于 2025-3-30 22:01:35
https://doi.org/10.1007/978-3-531-91363-6 Molecular Dynamics simulations to explore the horizontal transport of granular particles in a vertically vibrated system whose base has a sawtooth-shaped profile. The resulting transport of the granular material exhibits novel collective behavior, both as a function of the number of layers of parti
embolus
发表于 2025-3-31 01:54:15
https://doi.org/10.1007/978-3-322-94584-6sed tube. The main feature of this phenomenon, predicted by a hydrodynamic model and confirmed by computer simulations, are: (i) a column of a granular gas oscillates periodically with the frequency ., where . is the vibrationalfrequency, . is a positive integer number, (ii) the oscillation patterns
Synapse
发表于 2025-3-31 06:17:46
https://doi.org/10.1007/978-3-8349-9420-2on since centuries. So far, however, neither the detailled mechanisms of formation of planetary rings nor their complex spatial and dynamic behavior, originating from inelastic particle collisions, resonances, gravitational perturbations and others, are completely understood. We give a review on the
GIBE
发表于 2025-3-31 13:01:45
https://doi.org/10.1007/978-3-476-02972-0ation cell with periodic boundary conditions. Various factors affecting the local balance between collisional dissipation and viscous gain of energy from the systematic velocity field are considered, including gravitational encounters and collective gravitational forces besides physical impacts. Sim
Platelet
发表于 2025-3-31 15:13:36
Vorbemerkung: Zum Anliegen dieses Buchesicles and the satellite can be described with small integer numbers (e.g. 2:1, 4:3). In these locations the collisionally induced outward flow of the angular momentum is perturbed by the satellite. In some cases the perturbations may be strong enough to change the direction of the angular momentum f
词汇记忆方法
发表于 2025-3-31 20:54:02
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伟大
发表于 2025-3-31 23:25:15
Free Cooling of Particles with Rotational Degrees of Freedomsurface roughness for spherical grains, but occurs for non-spherical grains, like needles, even if they are perfectly smooth. Based on the assumption of a homogeneous cooling state, we derive an approximate analytical theory. It predicts that cooling of both rough spheres and smooth needles proceeds