Results 21 to 30 of about 2,179,940 (251)
Nonlinear evolution in high-density QCD [PDF]
Nuclear Physics B, 2002 31 pages, LaTeX, 3 ...
Balitsky, I.I., Belitsky, A.V.
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Conserved densities for linear evolution systems [PDF]
Communications in Mathematical Physics, 1981 A general discussion of the conservation laws for simple linear evolution systems is presented. The analysis is based upon an extension of the Gel'fand-Dikii symbolic algorithm to cover pseudo-differential operators. These techniques are applied to obtain all the conserved densities ϱ[u] for the free Klein-Gordon and Dirac equations with nonzero mass.
Abellanas, L., Galindo, A.
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Evolution of density perturbations in a realistic universe
, 2005 Prompted by the recent more precise determination of the basic cosmological parameters and growing evidence that the matter-energy content of the universe is now dominated by dark energy and dark matter we present the general solution of the equation ...
A. Friedman +27 more
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Nonlinear Evolution of Density Perturbations
, 1993 : From the epoch of recombination $(z\approx 10^3)$ till today, the typical density contrasts have grown by a factor of about $10^6$ in a Friedmann universe with $ =1$. However, during the same epoch the typical gravitational potential has grown only by a factor of order unity. We present theoretical arguments explaining the origin of this approximate
Bagla, J. S., Padmanabhan, T.
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Local Lagrangian Approximations for the Evolution of the Density Distribution Function in Large-Scale Structure [PDF]
, 1996 We examine local Lagrangian approximations for the gravitational evolution of the density distribution function. In these approximations, the final density at a Lagrangian point q at a time t is taken to be a function only of t and of the initial density
Protogeros, Zacharias A. M. +1 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Transfusion‐related iron overload (TRIO) is a late effect of therapy impacting survivors of childhood cancer and hematopoietic stem cell transplantation (HSCT) who receive frequent packed red blood cell (pRBC) transfusions. Surprisingly, there are no accepted guidelines to assist providers in identifying and treating at‐risk ...
Luke Gingell +3 more
wiley +1 more source
Co-evolution of density and topology in a simple model of city formation
, 2008 We study the influence that population density and the road network have on each others' growth and evolution. We use a simple model of formation and evolution of city roads which reproduces the most important empirical features of street networks in ...
A Bejan +50 more
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Density Evolution for Asymmetric Memoryless Channels [PDF]
IEEE Transactions on Information Theory, 2005 Density evolution is one of the most powerful analytical tools for low-density parity-check (LDPC) codes and graph codes with message passing decoding algorithms. With channel symmetry as one of its fundamental assumptions, density evolution (DE) has been widely and successfully applied to different channels, including binary erasure channels, binary ...
Wang, C. -C. +2 more
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Patients with ovarian cancer often present with massive ascites, leading to significant protein loss during surgical procedures. Although cell‐free concentrated ascites reinfusion therapy (CART) is used in palliative settings to mitigate protein loss, its application in intraoperative settings remains unexplored.
Yutaka Yoneoka +7 more
wiley +1 more source
Turbulence decay in the density-stratified intracluster medium
, 2019 Turbulence evolution in a density-stratified medium differs from that of homogeneous isotropic turbulence described by the Kolmogorov picture. We evaluate the degree of this effect in the intracluster medium (ICM) with hydrodynamical simulations. We find
Shi, Xun, Zhang, Congyao
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