نتایج جستجو برای: expanding or contracting walls

تعداد نتایج: 3607673  

Journal: :Spatial vision 2006
Ji Hong Thomas V Papathomas

Recently, Kitagawa and Ichihara (2002) demonstrated that visual adaptation to an expanding or contracting disk produces a cross-modal visually-induced auditory loudness aftereffect (VALAE), which they attributed to cross-correlations of motion in three-dimensional space. Our experiments extend their results by providing evidence that attending selectively to one of two competing visual stimuli ...

2003
Kenneth Stewart

HE MOST comprehensive indicator of economic performance in the nation in a given year is gross national product (CNP). Changes in CNP reflect both changes in prices and changes in the physical volume of output. CNP adjusted for price level changes is generally accepted as a reliable indicator of growth in the nation’s total production and is used by economic analysts to indicate whether the eco...

2011

Reference data lies at the heart of the world’s financial systems, be it customer and counterparty data, securities master data or transaction data. Few organizations know the real cost of poor data and inefficient data management. Without a high degree of reference data standardization, the securities industry could not process the ever-growing number of trades nor meet the demanding client se...

1998
R. Brandenberger Richard Easther J. Maia

We study spatially homogeneous and isotropic solutions to the equations of motion derived from dilaton gravity, in the presence of a special combination of higher derivative terms in the gravitational action. All solutions are nonsingular. For initial conditions resembling those in the pre-big-bang scenario, there are solutions corresponding to a spatially flat, bouncing Universe originating in...

Journal: :Archive of Formal Proofs 2011
David Trachtenherz

We introduce a theory of temporal logic operators using sets of natural numbers as time domain, formalized in a shallow embedding manner. The theory comprises special natural intervals (theory IL Interval: open and closed intervals, continuous and modulo intervals, interval traversing results), operators for shifting intervals to left/right on the number axis as well as expanding/contracting in...

Journal: :Communications in Computational Physics 2021

We study the cosmological Burgers model, as we call it, which is a nonlinear hyperbolic balance law (in one and two spatial variables) posed on an expanding or contracting background. design finite volume scheme that fourth-order in time second-order space, allows us to compute weak solutions containing shock waves. Our main contribution of asymptotic structure variable approaches infinity case...

Journal: :Physical review letters 2007
Ralf Schützhold Michael Uhlmann Lutz Petersen Hector Schmitz Axel Friedenauer Tobias Schätz

We study phonons in a dynamical chain of ions confined by a trap with a time-dependent (axial) potential strength and demonstrate that they behave in the same way as quantum fields in an expanding or contracting Universe. Based on this analogy, we present a scheme for the detection of the analogue of cosmological particle creation which should be feasible with present day technology. In order t...

2003

HE MOST comprehensive indicator of economic performance in the nation in a given year is gross national product (CNP). Changes in CNP reflect both changes in prices and changes in the physical volume of output. CNP adjusted for price level changes is generally accepted as a reliable indicator of growth in the nation’s total production and is used by economic analysts to indicate whether the eco...

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