Results 71 to 80 of about 6,503,496 (355)

Spectral Characteristics of Fluctuating Aerodynamic Forces Acting on Rectangular Prisms

open access: yesApplied Sciences, 2023
The present work is devoted to the role of boundary layer turbulence on the spectral characteristics of fluctuating wind loads on large aspect-ratio rectangular prisms.
Jiadong Zeng   +3 more
doaj   +1 more source

Spectral flows and twisted topological theories [PDF]

open access: yesPhysics Letters B, 1996
The presentation of the results has been very much improved.
Gato-Rivera, Beatriz   +1 more
openaire   +2 more sources

Deterministic Prediction of the Entropy Increase in a Sudden Expansion

open access: yesEntropy, 2011
This paper presents the results of a study of the prediction of the entropy growth within an internal free shear layer of an ideal gas flow downstream of a sudden expansion of the flow area. The objective of the study is exploratory in nature by invoking
LaVar King Isaacson
doaj   +1 more source

Lieb-Robinson bounds, the spectral flow, and stability of the spectral gap for lattice fermion systems. [PDF]

open access: yes, 2017
We prove Lieb-Robinson bounds for a general class of lattice fermion systems. By making use of a suitable conditional expectation onto subalgebras of the CAR algebra, we can apply the Lieb-Robinson bounds much in the same way as for quantum spin systems.
B. Nachtergaele   +2 more
semanticscholar   +1 more source

Spectral modeling of rotating turbulent flows [PDF]

open access: yesPhysics of Fluids, 2010
A subgrid-scale spectral model of rotating turbulent flows is tested against direct numerical simulations (DNSs). The case of Taylor–Green forcing is considered, a configuration that mimics the flow between two counter-rotating disks as often used in the laboratory. Computations are performed for moderate rotation down to Rossby numbers of 0.03, as can
Julien Baerenzung   +4 more
openaire   +7 more sources

Spectral Flow and Global Topology of the Hofstadter Butterfly. [PDF]

open access: yesPhysical Review Letters, 2016
We study the relation between the global topology of the Hofstadter butterfly of a multiband insulator and the topological invariants of the underlying Hamiltonian.
J. Asbóth, A. Alberti
semanticscholar   +1 more source

Unbounded Fredholm Modules and Spectral Flow [PDF]

open access: yesCanadian Journal of Mathematics, 1998
AbstractAn odd unbounded (respectively, p-summable) Fredholm module for a unital Banach *-algebra, A, is a pair (H,D) where A is represented on the Hilbert space, H, and D is an unbounded self-adjoint operator on H satisfying:(1) (1 + D2)-1 is compact (respectively, Trace_(1 + D2)-(p/2)_∞), and(2) ﹛a ∈ A | [D, a] is bounded﹜ is a dense *- subalgebra of
Carey, Alan L., Phillips, John
openaire   +1 more source

Uniqueness of spectral flow

open access: yesMathematical and Computer Modelling, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ciriza E.   +2 more
openaire   +2 more sources

Spectral problem for water flow glazings [PDF]

open access: yesEnergy and Buildings, 2017
Water flow glazings are characterized by a water chamber which transports the absorbed solar energy in the glazing. A multilayer water flow glazing comprises glass layers, PVB (Polyvinyl Butyral) layers, coatings, air gaps, and a water layer. Heat absorption from solar radiation depends on the spectral properties of each layer.
Romero Sáenz, Xabier   +1 more
openaire   +2 more sources

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

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