Results 51 to 60 of about 60,028 (276)

Global Phase Portrait of a Rolling Motion of Ships Equation

Qualitative Theory of Dynamical Systems
Abstract This paper studies the global dynamics of the rolling motion of ships in random beam seas model described by the equation $$\begin{aligned} \ddot{x}+ (2\mu + \delta x^2){\dot{x}} + \omega ^2 x-\frac{1}{a^2} x^3=0, \end{aligned}$$
Martha Álvarez–Ramírez, Jaume Llibre
openaire   +3 more sources

A Mechanistic Study of Bio‐Based Nanotemplated Carbon Nanofibers Derived From Water Processable Lignin Blends for Sustainable Energy Storage Applications

Advanced Materials, EarlyView.
As‐spun carbon materials produced from Lignosulfonate, gelatin, and alginate, selected for water solubility, and ability to produce templated sustainable carbon nanostructures. Gelatin and alginate are sacrificial during thermal processing, allowing the production of engineered high surface area nanostructures, which are further characterized for ...
Judith Miralda‐Jalle, Jamal El Haskouri, Shayon Bhattacharya, Anne Beaucamp, Tadhg Kennedy, Mario Culebras, Maurice N. Collins   +6 more
wiley   +1 more source

Formation Control of Multi‐Agent System with Local Interaction and Artificial Potential Field

Advanced Robotics Research, EarlyView.
This article proposes a local interaction‐based formation control method for Multi‐Agent system, integrating consensus and leader‐follower strategies with a stress response mechanism—artificial potential field to reduce communication overhead and enable obstacle avoidance. Experimental results on triangular, square, and hexagonal formations confirm its
Luoyin Zhao, Zheping Yan, Yuqing Wang, Raye Chen‐Hua Yeow   +3 more
wiley   +1 more source

A new 3-D jerk chaotic system with two cubic nonlinearities and its adaptive backstepping control

Archives of Control Sciences, 2017
This paper presents a new seven-term 3-D jerk chaotic system with two cubic nonlinearities. The phase portraits of the novel jerk chaotic system are displayed and the qualitative properties of the jerk system are described.
Vaidyanathan Sundarapandian
doaj   +1 more source

Diffusion-Wave Type Solutions to the Second-Order Evolutionary Equation with Power Nonlinearities

Mathematics, 2022
The paper deals with a nonlinear second-order one-dimensional evolutionary equation related to applications and describes various diffusion, filtration, convection, and other processes.
Alexander Kazakov, Anna Lempert
doaj   +1 more source

Current Flow and Pair Creation at Low Altitude in Rotation Powered Pulsars' Force-Free Magnetospheres: Space-Charge Limited Flow [PDF]

, 2012
(shortened) We report the results of an investigation of particle acceleration and electron-positron plasma generation at low altitude in the polar magnetic flux tubes of Rotation Powered Pulsars, when the stellar surface is free to emit whatever charges
A. N. Timokhin, Abdo, Akhiezer, Aliu, Arons, Arons, Arons, Arons, Bai, Beloborodov, Beskin, Birdsall, Bogdanov, Bucciantini, Cheng, Contopoulos, Erber, Fawley, Fawley, Goldreich, Harding, Hibschman, Holloway, J. Arons, Kalapotharakos, Kramer, Levinson, Medin, Mestel, Mestel, Michel, Muslimov, Pacini, Rankin, Ruderman, Scharlemann, Shibata, Shibata, Spitkovsky, Spitkovsky, Sturrock, Tademaru, Tajima, Timokhin, Timokhin, Villasenor   +45 more
core   +3 more sources

Global analysis of the phase portrait for the Kuramoto-Sivashinsky equation [PDF]

Journal of Dynamics and Differential Equations, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Consensus Formation and Change are Enhanced by Neutrality

Advanced Science, EarlyView.
Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag, Janina A. Hoffmann, Tim Rogers, Christian A. Yates   +3 more
wiley   +1 more source

Spatiotemporal dynamics and Turing patterns in an eco-epidemiological model with cannibalism

Results in Control and Optimization, 2022
In this work, we have studied the spatiotemporal dynamics and pattern formation in an eco-epidemiological model with cannibalism, which are not explored in the existing literature.
Vikas Kumar, Nitu Kumari, Ravi P. Agarwal   +2 more
doaj   +1 more source

Cosmology With Negative Potentials [PDF]

, 2002
We investigate cosmological evolution in models where the effective potential V(\phi) may become negative for some values of the field \phi. Phase portraits of such theories in space of variables (\phi,\dot\phi,H) have several qualitatively new features ...
Felder, Gary, Frolov, Andrei, Kofman, Lev, Linde, Andrei   +3 more
core   +3 more sources