By simulations of the Barkley model, action of uniform periodic nonresonant forcing on scroll rings and wave turbulence in three-dimensional excitable media is investigated. Sufficiently strong rapid forcing converts expanding scroll rings into the collapsing ones and suppresses the Winfree turbulence caused by the negative tension of wave filaments. Slow strong forcing has an opposite effect, ...

A unidirectional coupling scheme is investigated in double scroll type chaotic oscillators that reveal interesting multiscroll dynamics. Instead of using self-oscillatory systems, in this scheme, double scroll chaos from one oscillator is forced into another similar oscillator in a resting state. This coupling scheme is explored in the Chua oscillator, a modified Chua oscillator and the Lorenz ...

Most scroll compressor models are based on a geometrical description of the scroll wraps. Since geometry is one of the main factors affecting the efficiency of the compressor, a complete description of the geometry of scroll wraps has to be known in order to establish an accurate thermodynamic model. Most authors do not yield an analytical expression of the discharge chamber, also because their...

This paper discusses the design of active controllers for generalized projective synchronization (GPS) of identical Li 2-scroll chaotic systems (Li, 2009), identical Lü-Chen 2-scroll chaotic systems (Lü and Chen, 2002) and non-identical Li and Lü-Chen 2-scroll systems. The synchronization results (GPS) derived in this paper for the 2-scroll chaotic systems have been derived using active control...

The premise of this paper is to scroll the various search engine optimization techniques which are used in solving problems associated while finding relevant information related to specific topic across the Internet. While carrying this review work the authors concentrated on various published research papers and finally concluded that Query Clustering, Sequential Pattern Mining and Page Rankin...

John P. Elson Mgr. New Products The application of scroll compressor technology to the residential air conditioniong and heat pump markets has generated a variety of compressor design approaches to address special system requirements. This paper >till revie>t both special design needs of this application and unique scroll design concepts used to address these needs. Design concept discussions >...

A new circuit design is proposed for generating grid-scroll chaos in the phase plane by using a second-order linear system with a control of double-hysteresis series. The double-hysteresis series is constructed in a systematic way by using the basic double-hysteresis building blocks. With the proposed scheme, the number of scrolls can be arbitrarily assigned, and the multi-scroll chaotic attrac...

Recruitment of stretch-activated channels, one of the mechanisms of mechano-electric feedback, has been shown to influence the stability of scroll waves, the waves that underlie reentrant arrhythmias. However, a comprehensive study to examine the effects of recruitment of stretch-activated channels with different reversal potentials and conductances on scroll wave stability has not been underta...

The double-scroll attractor that can be produced by a wide class of nonlinear electronic circuits is known to contain periodic orbits of all types under certain operating conditions. We identify the branched manifold that describes the double-scroll attractor under these operating conditions. We then show that Ghrist's universal template is embedded as a subtemplate in the double-scroll templat...