bifurcation

The Concise Oxford Dictionary of Mathematics;    Christopher Clapham and James Nicholson;   14 words ...bifurcation The values at which the nature of an attractor changes in a dynamical system.

dynamical system

A Dictionary of Chemistry;      74 words ...dynamical system A system governed by dynamics (either classical mechanics or quantum mechanics). The evolution of...using the phase space for the system. Chaos is an example of the complex behaviour that can occur in a dynamical system.

On the Choice of Genetic Distance in Spatial-Genetic Studies

Genetics;  September 1, 2007 ;   Fearnhead, Paul;   787 words ......to maximize the power of detecting spatial structure. We answer this question through...models, like most that incorporate spatial structure, can be characterized by a separation...consider the problem of learning about spatial structure from population genetic data. We...

Information technology impacts on urban spatial structure in the Chicago...

Geographical Analysis;  October 1, 2002 ;   Sohn, Jungyul Kim, Tschangho John Hewings, Geoffrey J.D.;   787 words ......of information technology on urban spatial structure in the Chicago region. Urban scientists...well as spillover effect on urban spatial structure and thus concentration rather than...depending on the sector ********** Urban spatial structure can be viewed as the spatial ...

Radio Acoustic Sounding with a UHF Volume Imaging Radar

Journal of Atmospheric and Oceanic Technology;  May 1, 2004 ;   Dekker, Paco Lopez; Frasier, Stephen J;   787 words ......of the radar permits the study the spatial structure of the RASS echo observing both the...and temperature gradients on the spatial structure of the radar backscatter from the...few experimental studies of the spatial structure of the RASS echo exist. For example...

Stepping-Stone Spatial Structure Causes Slow Decay of Linkage...

Genetics;  June 1, 2007 ;   De, Arkendra; Durrett, Richard;   787 words ......Li, and Fay and Wu. Stepping-stone spatial structure also changes the two-locus sampling...An alternative approach tomodeling spatial structure that does not suffer from this defect...of this article is to argue that spatial structure in the form of the stepping-stone...

Systems and Control

Mechanical Engineering;  July 1, 2003 ;   Anonymous;   132 words ......systems. Introducing students to the basics of dynamical system theory and supplying them with the tools...it emphasizes design and illustrates how dynamical system theory fits into practical applications...

Implications of spatial heterogeneity for the paradox of enrichment.

Ecology;  October 1, 1995 ;   Scheffer, Marten Boer, Rob J. De;   787 words ......words: Daphnia; functional response; spatial structure; stability. INTRODUCTION Populations...minimal models if we allow for a simple spatial structure. We assume that Daphnia occupies...al. 1995). Although the specific spatial structure that we propose has not been analyzed...

Geostatistical analyses of landsat thematic mapper-derived surface...

Journal of Applied Meteorology;  September 1, 2002 ;   Ishida, Tomoyuki; Kawashima, Shigeto;   787 words ......used to clarify the effects of the spatial structure of terrain on the spatial variability...especially important in estimating spatial structure. The range can be interpreted as...range is useful for estimating the spatial structure of air temperature obtained from...

California Inventors Develop Information Decrypting Process

US Fed News Service, Including US State News;  May 26, 2007 ;     256 words ......a state generator built with a non-autonomous dynamical system to generate an unpredictable sequence of states...perturbators which perturb both the non-autonomous dynamical system and the sequence of permutations in a non-periodic...

Accurate low-dimensional approximation of the linear dynamics of fluid...

Journal of the Atmospheric Sciences;  September 15, 2001 ;   Farrell, Brian F; Ioannou, Petros J;   787 words ......stable linear autonomous dynamical system by a system of lower order...Reducing the order of a dynamical system is useful theoretically in...evaluated. 1. Introduction The dynamical system of fluid flow can be expressed...

Optimizing the spatial structure of the agricultural production...

Geographical Analysis;  July 1, 2002 ;   Singh, Surendra;   787 words ......increases with an increasing rate in the spatial structure of agricultural production. As a...theories of agricultural location, spatial structure of land use is conventionally analyzed...agricultural production intensity in its spatial structure is observed not only because of ...

A Singular Vector Perspective of 4DVAR: The Spatial Structure and...

Monthly Weather Review;  November 1, 2006 ;   Johnson, Christine; Hoskins, Brian J; Nichols, Nancy K; Ballard, Susan P;   787 words ......atmosphere to infer the vertical spatial structure of baroclinic weather systems is...a novel technique to examine the spatial structure of analysis increments. Specific...In such development, the vertical spatial structure of the disturbance plays a fundamental...

The Contribution of the Interannual ENSO Cycle to the Spatial Pattern of...

Journal of Climate;  June 15, 2005 ;   Vimont, Daniel J;   787 words ......surface temperature (SST) and the spatial structure of interannual ENSO variability...plausible physical explanation for the spatial structure of ENSO-like decadal variability...is dominated by variability with a spatial structure that bears a strong resemblance to...

Stratospheric Tracer Spectra

Journal of the Atmospheric Sciences;  January 15, 2004 ;   Haynes, P H; Vanneste, J;   787 words ......and diffusion on the equilibrium spatial structure of a tracer whose spatial variation...long-lived chemical tracers, the spatial structure of such distributions arises from...between stretching properties and spatial structure in tracer distributions is far from...