Results 81 to 90 of about 104,002 (268)

Multiple Transitions to Chaos in a Damped Parametrically Forced Pendulum

, 1995
We study bifurcations associated with stability of the lowest stationary point (SP) of a damped parametrically forced pendulum by varying $\omega_0$ (the natural frequency of the pendulum) and $A$ (the amplitude of the external driving force).
A. Arneodo, A. Lahiri, A.J. Lichtenberg, B.P. Koch, B.P. Koch, J. Gukenheimer, J. Mathews, J. Testa, J.B. McLaughlin, Kijin Lee, L.D. Landau, M. Hénon, M. Nauenberg, M.J. Feigenbaum, M.J. Feigenbaum, P.M. Morse, R.W. Leven, R.W. Leven, S. Lefschetz, S. Lefschetz, S. Y. Kim, S. Y. Kim, Sang-Yoon Kim, T. Kai, V.I. Arnold, V.I. Arnold, Y. Pomeau   +26 more
core   +1 more source

Physical Intelligence in Small‐Scale Robots and Machines

Advanced Materials, EarlyView.
“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley   +1 more source

THE ECONOMIC ASPECT OF MODERN INFORMATION AND CONTROL REAL-TIME SYSTEMS CREATION UNDER THE RANDOM FACTORS INFLUENCE

Sučasnì Informacìjnì Tehnologìï u Sferì Bezpeki ta Oboroni, 2015
The article deals with current issues of development of modern information and control systems in view of the major system logical, economic and psychological aspects.
Yurii P. Nedaibyda, Yuliia V. Kotova, Vitalii V. Zahorodnikh, Oleh V. Fedulov   +3 more
doaj  

Numerical Studies of Nonlinear Gearing Models Using Bond Graph Method

International Journal of Applied Mechanics and Engineering, 2018
The present paper is dedicated to computer simulations performed using a numerical model of a one-stage gear. The motion equations were derived utilizing the bond graph method.
J. Margielewicz, J. Wojnarowski, S. Zawiślak   +2 more
doaj   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

Histological verification of atherosclerosis due to bends and bifurcations in carotid arteries predicted by hemodynamic model

Jornal Vascular Brasileiro
Background Tortuosity and bifurcations in carotid arteries alter the blood flow, causing atherosclerosis. Objectives The aim of the present study is to analyze the effect of variant vascular anatomy in the cervical region on development of ...
Rajani Singh, Richard Shane Tubbs
doaj   +1 more source

A Rapid and Low-Cost Nonlithographic Method to Fabricate Biomedical Microdevices for Blood Flow Analysis

Micromachines, 2014
Microfluidic devices are electrical/mechanical systems that offer the ability to work with minimal sample volumes, short reactions times, and have the possibility to perform massive parallel operations.
Elmano Pinto, Vera Faustino, Raquel O. Rodrigues, Diana Pinho, Valdemar Garcia, João M. Miranda, Rui Lima   +6 more
doaj   +1 more source

Delay-induced multistability near a global bifurcation

, 2007
We study the effect of a time-delayed feedback within a generic model for a saddle-node bifurcation on a limit cycle. Without delay the only attractor below this global bifurcation is a stable node.
E. SCHÖLL, Guckenheimer J., Hu G., J. HIZANIDIS, R. AUST, Scholl E.   +5 more
core   +1 more source

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

Advanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song, Peiqi Niu, Wenxi Gu, Chun Lam Clement Chan, Jiuhong Yi, Xu Liu, Peng Tan, Chon In Haydn Cheong, Qingwen Guan, Dan Fang, Bingpu Zhou, Zi Liang Wu, Ji Liu, Yan Yan Shery Huang, Iek Man Lei   +14 more
wiley   +1 more source

Border Collision Bifurcations in Two Dimensional Piecewise Smooth Maps

, 1999
Recent investigations on the bifurcations in switching circuits have shown that many atypical bifurcations can occur in piecewise smooth maps which can not be classified among the generic cases like saddle-node, pitchfork or Hopf bifurcations occurring ...
Banerjee, Soumitro, Grebogi, Celso
core   +2 more sources