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Sphygmogram analysis based on phase trajectories
Biomedical Engineering, 2008Mattier's differential equation for parametric oscillation is suggested to be used as a method for simulating quasi-periodic processes in human body in terms of oscillation of the pulse wave produced by heart contraction. Obtained sphygmograms agree qualitatively with solutions of the Mattier's and Hill's equations at given shape of the exciting signal.
V. I. Volkov, D. Yu. Kozlov
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Vlasov model using kinetic phase point trajectories
Physical Review E, 2003A method of solution of the collisionless Vlasov equation by following fixed collisionless phase point ("particle") trajectories (characteristics) in phase space is presented. It solves the coupled Vlasov Maxwell system self-consistently and employs the Leapfrog-Trapezoidal scheme to solve for the characteristics explicitly.
F, Kazeminezhad, S, Kuhn, A, Tavakoli
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Chain phase trajectory of a protein molecule
International Journal of Peptide and Protein Research, 1982This paper presents the profile map of a protein conformation as a three‐dimensional e‐ø plot, where the third dimension is the residue number. The trajectories of some proteins of known crystalline structure, a few super‐secondary structures in proteins and valinomycin in conformational space are presented and examined.
V N, Viswanadhan, K, Sundaram
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Boost Phase Trajectory Analysis Techniques
Journal of Jet Propulsion, 1957Analysis of the boost-phase performance of a rocketboosted missile generally requires the solution of a set of differential equations with variable coefficients. Analytical methods are difficult and time consuming if not impossi ble. This paper discusses four numerical approaches to the solution of the equations for a cruciform, uncontrolled missile ...
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Achievable Halo Phasing with Short-Range Trajectories
Journal of Guidance, Control, and Dynamics, 2020Short-range halo phasing orbits, which are a type of phasing orbit remaining around the halo orbit, are investigated in the Earth–moon system.
Yi Qi, Anton de Ruiter
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Linear response of phase-space trajectories to shearing
Physical Review Letters, 1989The influence of the Lyapunov instability on a trajectory in phase space is investigated numerically for a Lennard-Jones fluid under a constant shear rate \ensuremath{\gamma}. The time dependence of the distance d(t,\ensuremath{\gamma};\ensuremath{\Gamma}) between two individual trajectories, starting at the same phase point \ensuremath{\Gamma}, but ...
, Morriss +3 more
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Kinetics of Phase Separation Along Stable Trajectories
1988The phase separation kinetics of dilute Al-(Zn,Mg) alloys were studied by small-angle and diffuse neutron scattering techniques and the mean cluster radius R as well as the volume fraction V of the solute-rich phase were determined. It could be shown that, within (R,V)-space, the decomposition corresponds to a trajectory, which is stable against small ...
Fratzl, P., Blaschko, O.
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Aberration detection through phase singularity movement trajectory
Frontiers in Optics + Laser Science 2023 (FiO, LS), 2023Based on numerical simulations, we develop a method for aberration detection through phase singularity movement trajectory. In this work, we present the detection of singular, third-order aberrations such as coma and astigmatism.
Karolina Gemza +3 more
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Particle Trajectories in Dilute Phase Pneumatic Conveying
Particulate Science and Technology, 2007A nonintrusive cross-correlation method to measure the particle velocities in dilute phase pneumatic conveying is described. The cross-correlation function generated gives information about the time it takes for a particle to travel between two optimally placed measurement planes.
Godbole, Ajit R +2 more
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