搜索结果: 1-11 共查到“理学 Rolling”相关记录11条 . 查询时间(0.127 秒)
On a Generalization of Blaschke’s Rolling Theorem and the Smoothing of Surfaces
Blaschke’s Rolling Theorem generalized convexity
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2015/8/20
A generalization of Blaschke’s Rolling Theorem for not necessarily convex sets is proved that exhibits an
intimate connection between a generalized notion of convexity, various concepts in mathematic...
Rolling hills on the core–mantle boundary
core–mantle boundary (CMB) iron-rich (Mg,Fe)O USArray low velocity zone
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2014/4/10
Recent results suggest that an iron-rich oxide may have fractionally crystallized from a primordial magma ocean and settled on the core–mantle boundary (CMB). Based on experimental results, the presen...
Statistical anisotropy of CMB as a probe of conformal rolling scenario
Statistical anisotropy CMB probe conformal rolling scenario
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2012/2/21
Search for the statistical anisotropy in the CMB data is a powerful tool for constraining models of the early Universe. In this paper we focus on the recently proposed cosmological scenario with confo...
Rolling of asymmetric disks on an inclined plane
asymmetric disks Roll inclined plane
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2011/8/5
Abstract: In a recent papers, Turner and Turner (2010 {\em Am. J. Phys.} {\bf 78} 905-7) and Jensen (2011 {\em Eur. J. Phys.} {\bf 32} 389-397) analysed the motion of asymmetric rolling rigid bodies o...
Integration of Constraint Equations in Problems of a Disc and a Ball Rolling on a Horizontal Plane
Integration of Constraint Equations Disc Ball Rolling Horizontal Plane Dynamical Systems
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2011/10/9
Abstract: The problem of a disc and a ball rolling on a horizontal plane without slipping is considered. Differential constrained equations are shown to be integrated when the trajectory of the point ...
Conditions for the feasibility of multiple rolling for mechanical systems with multiple contact points
mechanical systems multiple contact points Conditions for the feasibility of multiple rolling
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2011/9/1
We illustrate a theoretical procedure determining necessary conditions for which simultaneous pure rolling kinetic constraints acting on a mechanical system can be fulfilled. We also analyze the suffi...
Slipping and Rolling on an Inclined Plane
Inclined Plane Slipping and Rolling
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2011/9/1
In the first part of the article using a direct calculation two-dimensional motion of a particle sliding on an inclined plane is investigated for general values of friction coefficient (μ). A parametr...
Rolling Manifolds: Intrinsic Formulation and Controllability
Rolling Manifolds Intrinsic Formulation Controllability
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2010/11/19
In this paper, we consider two cases of rolling of one smooth connected complete Riemannian manifold $(M,g)$ onto another one $(\hM,\hg)$ of equal dimension $n\geq 2$. The rolling problem $(NS)$ corre...
Ordered and disordered dynamics in monolayers of rolling particles
Ordereddisordered dynamics monolayers of rolling particles
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2010/12/15
We consider the ordered and disordered dynamics for monolayers of rolling self-interacting par-
ticles with an o -set center of mass and a non-isotropic inertia tensor. The rolling constraint is cons...
What makes a rolling landscape roll?New study explains evenly spaced ridges and valleys; could help identify signs of life on other planets（图）
rolling landscape ridges and valleys other planets
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2009/7/28
The fundamental understanding of the processes that lead to these parallel grooves is not just useful theoretically, but could ultimately allow geologists to predict how eroding landscapes will respon...
Surface treatment of 3D outside serrated integral-fin tube manufactured by rolling and extrusion
finned tube surface treating heat transfer multi-dimensional surface
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2016/12/2
The outside serrated integral-fin tubes fabricated by rolling-plowing-extrusion processing were surface-treated through different processes of annealing in hydrogen atmosphere,electrochemical corrosio...