نتایج جستجو برای: smooth shifts
تعداد نتایج: 175124 فیلتر نتایج به سال:
in this paper, we introduce the structure of a groupoid associated to a vector field on a smooth manifold. we show that in the case of the $1$-dimensional manifolds, our groupoid has a smooth structure such that makes it into a lie groupoid. using this approach, we associated to every vector field an equivalence relation on the lie algebra of all vector fields on the smooth...
The observation that the length-force relationship in airway smooth muscle can be shifted along the length axis by accommodating the muscle at different lengths has stimulated great interest. In light of the recent understanding of the dynamic nature of length-force relationship, many of our concepts regarding smooth muscle mechanical properties, including the notion that the muscle possesses a...
Nowadays NMR spectroscopy becomes a powerful tool in chemistry because of the NMR chemical shifts. Hartree–Fock theory and the Gauge-including atomic orbital (GIAO) methods are used in the calculation of 29Si NMR chemical shifts of various silicate species in the silicate solution as initial components for zeolite synthesis both in gas and solution phase. Calculations have been performed at geo...
Crocin, a component of saffron, showed hypotensive which is perhaps due to vascular smooth muscle relaxant effect. The relaxant effects of saffron on tracheal smooth muscle also could be due to its constituent, crocin. In the present study, the relaxant effects of crocin and its possible mechanisms on rat tracheal smooth muscle were investigated. The relaxant effects of three cumulative concent...
Gradual changes in exploitation, nutrient loading, etc produce shifts between alternative stable states (ASS) in ecosystems which, quite often, are not smooth but abrupt or catastrophic. Early warnings of such catastrophic regime shifts are fundamental for designing management protocols for ecosystems. Here we study the spatial version of a popular ecological model, involving a logistically gro...
abstractthis study focused mainly on the shifts of the grammatical cohesion in texts translated from english into persian. it aimed to identify the grammatical cohesive devices (gcds) in st and tt separately, based on halliday and hassn's model (1976), determine the number of occurrences of gcds in two texts and finally, illustrate types of shifts of grammatical cohesion and strategies used in ...
The process of implantation and placentation in women in volves a series of intercellular interactions, the eventual elucidation of which will result in extensions or even shifts of cell biological paradigms. These include the formation of motile and non-motile mononuclear and multinuclear trophoblast, alterations between faster and slower states of proliferation, changes in adhesive properties...
nfl S it, HERE HAS BEEN considerable concern about the size of the federal deficit and the rather modest success of the Gramm-RudmanHollings Act to reduce it. The traditional, that is, Keynesian, view of deficit spending in macroeconomics was that it could smooth out fluctuations in economic activity due to gaps between saving and investment that were primarily the result of exogenous shifts in...
A wavelength scanning interferometry system for fast areal surface measurement of micro and nano-scale surfaces which is immune to environmental noise is introduced in this paper. It can be used for surface measurement of discontinuous surface profiles by producing phase shifts without any mechanical scanning process. White light spectral scanning interferometry, together with an acousto-optic ...
We present a general method for construction of frames {ψI}I∈D for Triebel-Lizorkin and Besov spaces, whose nature can be prescribed. In particular, our method allows for constructing frames consisting of rational functions or more general functions which are linear combinations of a fixed (small) number of shifts and dilates of a single smooth and rapidly decaying function θ such as the Gaussi...
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