Results 11 to 20 of about 1,869,289 (152)

The Phase-Space Density Profiles of Cold Dark Matter Halos [PDF]

Astrophysical Journal, 2001
We examine the coarse-grained phase-space density profiles of a set of recent, high-resolution simulations of galaxy-sized Cold Dark Matter (CDM) halos.
Cole S., James E. Taylor, Julio F. Navarro   +2 more
core   +5 more sources

Modeling of space charge dynamics in polyethylene under AC stress based on bipolar charge transport model

Materials Research Express, 2020
Space charge dynamics under AC stress is of importance as a majority of high voltage cables are under AC stress, and space charge is the driving mechanism of dielectric degradation under these conditions.
Xinjing Cai, Xin Lin, Jianli Yu, Zhiwei Lu   +3 more
doaj   +1 more source

Pseudo-Random Signal Injection for Position Sensorless Control of Five-Phase IPMSM Based on Third Harmonic Space

IEEE Access, 2023
In this article, a position sensorless control strategy for the five-phase interior permanent magnet synchronous motor (IPMSM) by injecting pseudo-random signal into the third harmonic space is proposed.
Yuhao Zhang, Chen Chen, Zhengmeng Liu, Qian Chen, Jiahao Zhang, Guohai Liu   +5 more
doaj   +1 more source

Method of phase-space tomography of rapidly evolving E beams

Physical Review Special Topics. Accelerators and Beams, 2005
In this paper, we describe a new method of phase-space tomography. This method allows one to restore phase-space density using a small number of projections covering a limited range of linear transformations in the phase space.
K. Chalut, V. N. Litvinenko, I. V. Pinayev   +2 more
doaj   +1 more source

Cellular Automaton Simulation For Volume Changes Of Solidifying Nodular Cast Iron

Archives of Metallurgy and Materials, 2015
Volume changes of the binary Fe-C alloy with nodular graphite were forecast by means of the Cellular Automaton Finite Differences (CA-FD) model of solidification. Simulations were performed in 2D space for differing carbon content.
Burbelko A., Gurgul D., Guzik E., Kapturkiewicz W.   +3 more
doaj   +1 more source

Non-Douglas-Kazakov phase transition of two-dimensional generalized Yang-Mills theories [PDF]

, 2007
In two-dimensional Yang-Mills and generalized Yang-Mills theories for large gauge groups, there is a dominant representation determining the thermodynamic limit of the system.
B. Rusakov, D.J. Gross, D.J. Gross, D.J. Gross, D.J. Gross, E. Witten, F. Dubath, J. Jurekiewicz, J.A. Minahan, J.A. Minahan, M. Alimohammadi, M. Alimohammadi, M. Alimohammadi, M. Alimohammadi, M. Khorrami, M. Khorrami, M. Khorrami, M.R. Douglas, O. Ganor, S. Cordes, S. Cordes, S.R. Wadia   +21 more
core   +3 more sources

Maximally Realistic Causal Quantum Mechanics [PDF]

, 1998
We recently constructed a causal quantum mechanics in 2 dim. phase space which is more realistic than the de Broglie-Bohm mechanics as it reproduces not just the position but also the momentum probability density of ordinary quantum theory.
Bell, Gleason, Martin, Roy, S.M. Roy, Takabayasi, Virendra Singh, Wigner   +7 more
core   +3 more sources

On the Pseudo Phase-space Density of Dark Matter Haloes and the Universality of Density Profiles

Open Astronomy, 2015
We examine the radial dependence of the pseudo phase-space density, ρ(r)/σ3(r), for structures on galactic and galaxy cluster scales. We find that it is approximately a power-law only in the range of halo radius resolved by current simulations (down to 0.
Del Popolo A.
doaj   +1 more source

A visual Fortran 90 program for the two-particle or two-hole excitations of nuclei: The PPRPA program

SoftwareX, 2016
Random Phase Approximation (RPA) is one of the main approximation tools in studying nuclear structure. Here, we present a graphical user interface (GUI) Fortran code: Particle–Particle Random Phase Approximation (PPRPA) version 1, 2015. The code performs
Ali H. Taqi
doaj   +1 more source

Phase-space approach to dynamical density functional theory

, 2007
We consider a system of interacting particles subjected to Langevin inertial dynamics and derive the governing time-dependent equation for the one-body density. We show that, after suitable truncations of the Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy,
Bender C. M., de Groot S. R., Enskog D., Evans R., Gardiner C., Hansen J.-P., Harris S., Hassani S., Kreuzer H. J., McLennan J. A., Nayfeh A., Reichl L. E., Simone Melchionna, Umberto Marini Bettolo Marconi, van Kampen N., von Smoluchowski M.   +15 more
core   +1 more source