Results 81 to 90 of about 4,529,073 (321)

Least – Squares Method For Estimating Diffusion Coefficient

open access: yesInternational Journal of Industrial Engineering and Production Research, 2008
: Determination of the diffusion coefficient on the base of solution of a linear inverse problem of the parameter estimation using the Least-square method is presented in this research.
A. Neisy
doaj  

Heavy quark momentum diffusion coefficient during hydrodynamization via effective kinetic theory [PDF]

open access: yesEPJ Web of Conferences
In these proceedings, we compute the heavy quark momentum diffusion coefficient using QCD effective kinetic theory for a plasma going through the bottom-up thermalization scenario until approximate hydrodynamization.
Boguslavski Kirill   +4 more
doaj   +1 more source

Association of CDKN2A/B Homozygous Deletion and Extent of Resection With Survival of Patients With WHO CNS5 Grade 4 Astrocytoma

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives WHO grade 4 astrocytomas are associated with poor prognosis, and their prognostic factors remain controversial. This study aimed to identify the prognostic factors and develop a management algorithm for these patients. Methods This study retrospectively included 151 CNS5 adult grade 4 astrocytomas from two medical centers.
Jiawei Cai   +13 more
wiley   +1 more source

LEAST – SQUARES METHOD FOR ESTIMATING DIFFUSION COEFFICIENT

open access: yesInternational Journal of Industrial Engineering and Production Research, 2007
Determining the diffusion coefficient based on the solution of the linear inverse problem of the parameter estimation by using the Least-square method is presented.
Abdolsadeh Neisy
doaj  

Speedup of nuclear spin diffusion in hyperpolarized solids

open access: yesNew Journal of Physics, 2021
We propose a correction to the coefficient of nuclear spin diffusion by a factor $1/\sqrt{1-{\bar{p}}^{2}}$ , where $\bar{p}$ is the average nuclear spin polarization.
Yu Wang, Kazuyuki Takeda
doaj   +1 more source

Heavy Quark Momentum Diffusion Coefficient from Lattice QCD

open access: yes, 2011
The momentum diffusion coefficient for heavy quarks is studied in a deconfined gluon plasma in the static approximation by investigating a correlation function of the color electric field using Monte Carlo techniques.
Debasish Banerjee   +5 more
core   +1 more source

Double crystal x-ray diffraction simulations of diffusion in semiconductor microstructures [PDF]

open access: yes, 1998
Diffusion in group IV, III-V and II-VI semiconductors is an interesting problem not only from a fundamental physics viewpoint but also in practical terms, since it could determine the useful lifetime of a device.
J. H. C. Hogg   +5 more
core   +1 more source

Diffusion coefficient and shear viscosity of rigid water models [PDF]

open access: yesJournal of Physics: Condensed Matter, 2012
We report the diffusion coefficient and viscosity of popular rigid water models: two non-polarizable ones (SPC/E with three sites, and TIP4P/2005 with four sites) and a polarizable one (Dang–Chang, four sites).
Sami Tazi   +5 more
semanticscholar   +1 more source

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji   +13 more
wiley   +1 more source

Fractal diffusion coefficient from dynamical zeta functions

open access: yes, 2005
Dynamical zeta functions provide a powerful method to analyze low dimensional dynamical systems when the underlying symbolic dynamics is under control.
Artuso R   +11 more
core   +1 more source

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