Results 61 to 70 of about 679,868 (186)

Vacuum Polarization and Screening of Supercritical Impurities in Graphene

open access: yes, 2007
Screening of charge impurities in graphene is analyzed using the exact solution for vacuum polarization obtained from the massless Dirac-Kepler problem.
A. V. Shytov   +8 more
core   +2 more sources

On the application of the Theory of Critical Distances for prediction of fracture in fibre composites [PDF]

open access: yesFracture and Structural Integrity, 2010
This paper is concerned with the fracture of composite materials containing stress concentration features such as notches and holes. In particular, it addresses the question of the use of the Theory of Critical Distances (TCD) – a method which is widely ...
David Taylor
doaj  

De Husserl à Sartre. La structure intentionnelle de l’image dans L’Imagination et L’Imaginaire

open access: yesMethodos, 2012
Sartre’s two books about the image are difficult to interpret, even it is rarely noticed. Indeed the first book, L’Imagination, ends with a glowing tribute to the Husserlian theory of image. The second one, L’Imaginaire, initially combined with the firth
Vincent de Coorebyter
doaj   +1 more source

Stripe melting and quantum criticality in correlated metals

open access: yes, 2012
We study theoretically quantum melting transitions of stripe order in a metallic environment, and the associated reconstruction of the electronic Fermi surface.
Mross, David F., Senthil, T.
core   +1 more source

Counseling and Spiritual Assistance to Chemotherapy Patients: A Reflection in the Light of Jean Watson's Theory

open access: yesEscola Anna Nery, 2018
Aim: To reflect on the use of spiritual interventions and methods of psychological, theological and psychotherapeutic counseling applicable to nursing. Method: Theoretical reflection article, used to identify approximations and distances of counseling ...
Angelo Braga Mendonça   +3 more
doaj   +1 more source

Percolation-like Scaling Exponents for Minimal Paths and Trees in the Stochastic Mean Field Model

open access: yes, 2005
In the mean field (or random link) model there are $n$ points and inter-point distances are independent random variables. For $0 < \ell < \infty$ and in the $n \to \infty$ limit, let $\delta(\ell) = 1/n \times$ (maximum number of steps in a path whose ...
Aldous D. J., Balas E.
core   +3 more sources

Safety distance for preventing hot particle ignition of building insulation materials

open access: yesTheoretical and Applied Mechanics Letters, 2014
Trajectories of flying hot particles were predicted in this work, and the temperatures during the movement were also calculated. Once the particle temperature decreased to the critical temperature for a hot particle to ignite building insulation ...
Jiayun Song, Supan Wang, Haixiang Chen
doaj   +1 more source

Subsystem distance after a local operator quench

open access: yesJournal of High Energy Physics, 2020
We investigate the time evolution of the subsystem trace distance and Schatten distances after local operator quenches in two-dimensional conformal field theory (CFT) and in one-dimensional quantum spin chains.
Jiaju Zhang, Pasquale Calabrese
doaj   +1 more source

FRACTURE CRITERION OF THE THEORY OF CRITICAL DISTANCE FOR NOTCHES

open access: yesJixie qiangdu, 2018
Whether the brittle fracture criterion of theory of critical distance is suitable for graphite plates with different shape notches was studied by means of analysis of finite element: including tensile specimens with U notches,blunted V-notch specimens of semi-circular bend,three-point bending specimens with single V-notch and compressed specimens of ...
LIU XiaoMei   +3 more
openaire   +1 more source

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