Results 51 to 60 of about 16,858,520 (353)

What drives the time evolution of the spacetime geometry? [PDF]

open access: yes, 2014
I show that in a general, evolving spacetime, the rate of change of gravitational momentum is related to the difference between the number of degrees of freedom in the bulk and the boundary of a region.
Padmanabhan, T.
core   +1 more source

Host and structure-specific codon usage of G genotype (VP7) among group A rotaviruses

open access: yesFrontiers in Veterinary Science
Rotavirus A (RVA) infects a relatively wide host range. Studying the evolutionary dynamics of viral genomes and the evolution of host adaptations can inform the development of epidemiological models of disease transmission.
Ziwei Liu   +4 more
doaj   +1 more source

Beyond mean-field dynamics of small Bose-Hubbard systems based on the number-conserving phase space approach

open access: yes, 2008
The number-conserving quantum phase space description of the Bose-Hubbard model is discussed for the illustrative case of two and three modes, as well as the generalization of the two-mode case to an open quantum system. The phase-space description based
Korsch, H. J.   +2 more
core   +1 more source

An Empirical Evaluation of the Local Texture Description Framework-Based Modified Local Directional Number Pattern with Various Classifiers for Face Recognition

open access: yesBrazilian Archives of Biology and Technology
Texture is one of the chief characteristics of an image. In recent years, local texture descriptors have garnered attention among researchers in describing effective texture patterns to demarcate facial images.
R. Reena Rose, K. Meena, A. Suruliandi
doaj   +1 more source

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

open access: yesPopulation Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier   +6 more
wiley   +1 more source

The Joint UK Land Environment Simulator (JULES), model description – Part 1: Energy and water fluxes

open access: yes, 2011
. This manuscript describes the energy and water components of a new community land surface model called the Joint UK Land Environment Simulator (JULES). This is developed from the Met Office Surface Exchange Scheme (MOSES).
M. Best   +16 more
semanticscholar   +1 more source

Changes of Material Properties of Silumin During Age-Hardening

open access: yesCommunications, 2012
Simple phenomenological description of age-hardening kinetics of supersaturated solid solution is presented using the sum of exponential functions with negative arguments containing rate constants whose temperature dependence is described by the ...
Jan Kohout
doaj   +1 more source

COMPACT AND HYBRID FEATURE DESCRIPTION FOR BUILDING EXTRACTION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Building extraction in aerial orthophotos is crucial for various applications. Currently, deep learning has been shown to be successful in addressing building extraction with high accuracy and high robustness. However, quite a large number of samples is
Z. Li   +5 more
doaj   +1 more source

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Parameterization of Cloud Microphysics Based on the Prediction of Bulk Ice Particle Properties. Part I: Scheme Description and Idealized Tests

open access: yes, 2015
A method for the parameterization of ice-phase microphysics is proposed and used to develop a new bulk microphysics scheme. All ice-phase particles are represented by several physical properties that evolve freely in time and space.
H. Morrison, J. Milbrandt
semanticscholar   +1 more source

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