نتایج جستجو برای: momentum
تعداد نتایج: 52678 فیلتر نتایج به سال:
Bridge abutments are usually located in the floodplain zone of rivers where velocity and shear stress are not uniformly distributed. The influence of channel geometry and lateral momentum transfer in compound flow field on the scouring phenomenon has not been fully investigated and understood yet. The impact of lateral momentum transfer on the local scour at abutments terminating in the floodpl...
In condensed matter systems it is necessary to distinguish between the momentum of constituents system and pseudomomentum quasiparticles. The same distinction also valid for angular pseudoangular momentum. Based on Noether's theorem, we demonstrate that recently discussed orbital momenta phonons magnons are momenta. This conceptual difference important a proper understanding transfer in systems...
Objective: In order to increase the level of performance of impact skills in martial arts, based on two main physical principles of work,-energy and impulse-momentum in analyzing these skills was done. Methods: The search of articles was carried out in specialized databases and then 31 related articles selected based on entry and exit criteria were analyzed. Results: In this study, it was spe...
In this paper, I discuss observations indicating that homogenization, in its standard version based on weak compactness, generally does not work for dynamic materials with arbitrary material geometry. A remarkable exception is represented by the spatial-temporal laminates where such compactness can be established. For the slow (timelike) laminates, this was done in [18] with the use of energy b...
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