Results 51 to 60 of about 776,577 (282)

Instability and the formation of bubbles and the plugs in fluidized beds [PDF]

open access: yesOpuscula Mathematica, 2004
This is an review paper, particulary concentrate on results not many researches by reason that are explain in the text. We consider stability of disperse, two-phase flow (gas-solid particles or liquid-solid particles) linear and non-linear. In particular
Piotr Schulz
doaj  

The effects of unburned-gas temperature on intrinsic instability of premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions

open access: yesMechanical Engineering Journal, 2017
We treated numerically premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions to elucidate the effects of unburned-gas temperature on intrinsic instability.
Thwe Thwe Aung   +2 more
doaj   +1 more source

The fragmentation of expanding shells II: Thickness matters

open access: yes, 2010
We study analytically the development of gravitational instability in an expanding shell having finite thickness. We consider three models for the radial density profile of the shell: (i) an analytic uniform-density model, (ii) a semi-analytic model ...
A. P. Whitworth   +29 more
core   +1 more source

Coherent Neutrino Interactions in a Dense Medium [PDF]

open access: yes, 1997
Motivated by the effect of matter on neutrino oscillations (the MSW effect) we study in more detail the propagation of neutrinos in a dense medium. The dispersion relation for massive neutrinos in a medium is known to have a minimum at nonzero momentum p
A. Hansen   +15 more
core   +4 more sources

Calculation of photon dispersion relations [PDF]

open access: yesPhysical Review Letters, 1992
The current generation of photon scattering experiments requires a fast, accurate, general technique for calculation of transmission coefficients and of photonic band structure. A new methodology, which has significant advantages of speed and convenience, enables the band structure and, for the first time, transmission coefficients of complex ...
Pendry, JB, MacKinnon, A
openaire   +4 more sources

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

1d conformal field theory and dispersion relations

open access: yesJournal of High Energy Physics
We study conformal field theory in d = 1 space-time dimensions. We derive a dispersion relation for the 4-point correlation function of identical bosons and fermions, in terms of the double discontinuity. This extends the conformal dispersion relation of
Dean Carmi, Sudip Ghosh, Trakshu Sharma
doaj   +1 more source

Consistent Models of Flexural-Gravity Waves in Floating Ice

open access: yesJournal of Marine Science and Engineering
Classification of flexural-gravity waves in floating ice is discussed, using the dispersion relation of these waves and the criterion of sea ice breaking, based on the concept of yield strain.
Alexander Korobkin   +1 more
doaj   +1 more source

Thermal Field Theory in a wire: Applications of Thermal Field Theory methods to the propagation of photons in a one-dimensional plasma

open access: yes, 2012
We apply the Thermal Field Theory (TFT) methods to study the propagation of photons in a plasma wire, that is, a system in which the electrons are confined to a one-dimensional tube or wire, but are otherwise free.
JOSÉ F. NIEVES, Peskin M. E.
core   +1 more source

Parent‐to‐Child Information Disclosure in Pediatric Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite professional consensus regarding the importance of open communication with pediatric cancer patients about their disease, actual practice patterns of disclosure are understudied. Extant literature suggests a significant proportion of children are not told about their diagnosis/prognosis, which is purported to negatively ...
Rachel A. Kentor   +12 more
wiley   +1 more source

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