نتایج جستجو برای: vortex lattice method vlm
تعداد نتایج: 1730700 فیلتر نتایج به سال:
This paper proposes a new geometrical theory for the formation of subatomic structures underlying electric polarities and gravitation, and describes their interactions at the sub-elemental particle level. The structures are derived from two basic observations and their interpretations. It is observed that spiral motion is a fundamental action of matter and that all material manifestation is a t...
The interaction between the slipstream of propellers and wing an aircraft with distributed electric propulsion (DEP) could benefit aerodynamics. A conceptual design optimization are carried out in order to increase range general aviation without affecting its takeoff landing velocity same fuselage condition. Propellers modelled using actuator disk (AD) theory, is vortex lattice method (VLM) obt...
Fundamental and vortex solitons in a two-dimensional optically induced waveguide array are reported. In the strong localization regime the fundamental soliton is largely confined to one lattice site, whereas the vortex state comprises four fundamental modes superimposed in a square configuration with a phase structure that is topologically equivalent to the conventional vortex. However, in the ...
In SU(2) lattice gauge theory, a new self-restricted cooling procedure is developed which removes the SU(2)/Z2 coset fields from the lattice configurations and thus reveals the the Z2 vortex vacuum texture. The emerging gauge invariant vortex vacuum structure amounts to the full string tension. The action density of the vortex texture extrapolates to the continuum limit, and, hence, gives rise ...
Observation of topological transformations of optical vortices in two-dimensional photonic lattices.
We study interaction of a discrete vortex with a supporting photonic lattice and analyze how the combined action of the lattice periodicity and the medium nonlinearity can modify the vortex structure. In particular, we describe theoretically and observe in experiment, for the first time to our knowledge, the nontrivial topological transformations of the discrete vortex including the flipping of...
The anisotropic e ects on the dynamical phases of a vortex lattice driven by a uniform Lorentz force are investigated by numerical simulations. A square array of columnar defects is represented by a periodic pinning potential. We assume that ow is elastic, so that the vortex-vortex interactions can be represented by elastic forces. V-I characteristics and mean-square displacements and velocitie...
Stress-induced hyperglycemia is a fundamental adaptive response that mobilizes energy stores in response to threats. Here, our examination of the contributions of the central catecholaminergic (CA) neuronal system to this adaptive response revealed that CA neurons in the ventrolateral medulla (VLM) control stress-induced hyperglycemia. Ablation of VLM CA neurons abolished the hyperglycemic resp...
The maximal center gauge, combined with center projection, is a means to associate Yang-Mills lattice gauge configurations with closed center vortex world-surfaces. This technique allows to study center vortex physics in lattice gauge experiments. In the present work, the continuum analogue of the maximal center gauge is constructed. This sheds new light on the meaning of the procedure on the l...
The vortex system in a high-Tc superconductor has been studied numerically using the mapping to 2D bosons and the Path Integral Monte Carlo method. We find a single first-order transition from an Abrikosov lattice to an entangled vortex liquid. The transition is characterized by an entropy jump of ∆S ≈ 0.27kB per degree of freedom and a Lindemann number cL ≈ 0.29. At low fields, λ ≈ a0, the den...
In this paper, we propose a digitalized chaotic map, Variational Logistic Map (VLM), modified from classical logistic map to be used in secure communication. Compared with classical logistic map, VLM has large parameter space without windows and can be implemented at low hardware cost. Referring to statistical testing suites SP800-22 and TestU01, VLM with the proposed scrambling method can sign...
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