scholarly journals Decentralized identification and control of networks of coupled mobile platforms through adaptive synchronization of chaos

2014 ◽  
Vol 267 ◽  
pp. 94-103 ◽  
Author(s):  
Nicola Bezzo ◽  
Patricio J. Cruz ◽  
Francesco Sorrentino ◽  
Rafael Fierro
Keyword(s):  
Adaptive Synchronization ◽  
Mobile Platforms ◽  
And Control ◽  
Control Of Networks

scholarly journals Turkey’s communicative authoritarianism

2020 ◽  
Vol 16 (1) ◽  
pp. 102-120
Author(s):  
Burçe Çelik
Keyword(s):  
Empirical Analysis ◽  
Political Communication ◽  
Capital Accumulation ◽  
Communication Studies ◽  
Political Repression ◽  
Institutional Practices ◽  
And Control ◽  
Control Of Networks ◽  
Welfare Politics

The majority of current political communication studies focus on discursive dimensions of communications and disregard how communications partake in the governing of populations through economic, material and institutional practices. By focusing on Turkey’s case, here I move beyond this approach and examine the role of communications in the development of neoliberal capital accumulation, authoritarian welfare politics, political repression and the production of popular support. The article provides an empirical analysis of policy developments and plans and the restructuring of ownership and control of networks between 2002 and 2016 in Erdoğan’s Turkey.

ON ADAPTIVE SYNCHRONIZATION AND CONTROL OF NONLINEAR DYNAMICAL SYSTEMS

1996 ◽  
Vol 06 (03) ◽  
pp. 455-471 ◽  
Author(s):  
CHAI WAH WU ◽  
TAO YANG ◽  
LEON O. CHUA
Keyword(s):  
Spread Spectrum ◽  
Communication Systems ◽  
Chaotic Systems ◽  
Nonlinear Dynamical Systems ◽  
Adaptive Synchronization ◽  
Adaptive Controllers ◽  
Nonlinear Dynamical ◽  
Two Systems ◽  
And Control

In this paper, we study the synchronization of two coupled nonlinear, in particular chaotic, systems which are not identical. We show how adaptive controllers can be used to adjust the parameters of the systems such that the two systems will synchronize. We use a Lyapunov function approach to prove a global result which shows that our choice of controllers will synchronize the two systems. We show how it is related to Huberman-Lumer adaptive control and the LMS adaptive algorithm. We illustrate the applicability of this method using Chua's oscillators as the chaotic systems. We choose parameters for the two systems which are orders of magnitude apart to illustrate the effectiveness of the adaptive controllers. Finally, we discuss the role of adaptive synchronization in the context of secure and spread spectrum communication systems. In particular, we show how several signals can be encoded onto a single scalar chaotic carrier signal.

scholarly journals A Mobile Robot with Omnidirectional Tracks—Design and Experimental Research

2021 ◽  
Vol 11 (24) ◽  
pp. 11778
Author(s):  
Mateusz Fiedeń ◽  
Jacek Bałchanowski
Keyword(s):  
Mobile Robot ◽  
Experimental Research ◽  
Mobile Systems ◽  
Movement Trajectory ◽  
Mobile Platforms ◽  
Construction Machinery ◽  
Drive Systems ◽  
Small Robot ◽  
And Control ◽  
Design And Testing

This article deals with the design and testing of mobile robots equipped with drive systems based on omnidirectional tracks. These are new mobile systems that combine the advantages of a typical track drive with the advantages of systems equipped with omnidirectional Mecanum wheels. The omnidirectional tracks allow the robot to move in any direction without having to change the orientation of its body. The mobile robot market (automated construction machinery, mobile handle robots, mobile platforms, etc.) constantly calls for improvements in the manoeuvrability of vehicles. Omnidirectional drive technology can meet such requirements. The main aim of the work is to create a mobile robot that is capable of omnidirectional movement over different terrains, and also to conduct an experimental study of the robot’s operation. The paper presents the construction and principles of operation of a small robot equipped with omnidirectional tracks. The robot’s construction and control system, and also a prototype made with FDM technology, are described. The trajectory parameters of the robot’s operation along the main and transverse axes were measured on a test stand equipped with a vision-based measurement system. The results of the experimental research became the basis for the development and experimental verification of a static method of correcting deviations in movement trajectory.

Mobile Platforms Supporting Health Professionals

2016 ◽  
pp. 91-114 ◽  
Author(s):  
Ioannis Tamposis ◽  
Abraham Pouliakis ◽  
Ioannis Fezoulidis ◽  
Petros Karakitsos
Keyword(s):  
Health Professionals ◽  
Prevention And Control ◽  
User Acceptance ◽  
Cervical Cancer Prevention ◽  
Mobile Platforms ◽  
Self Monitoring ◽  
Patient Interactions ◽  
New Ideas ◽  
Fitness Training ◽  
And Control

Mobile computing is beginning defining the future of healthcare. The vast majority of mHealth applications are related to fitness, training and self-monitoring; limited applications are targeting physicians and doctor-patient interactions. However this can change. In this chapter the background of applications related to medical imaging and clinical and laboratory medicine is analyzed. A technological framework supporting mHealth applications in an agnostic manner is also introduced. Within this framework there are implemented two application examples, one application (ImaginX) supporting a health ecosystem (hospitals, radiologists, clinicians, patients) for medical image management. The second application (HPVGuard) supports a divergent but cooperating environment of laboratory and clinical doctors and patients involved in cervical cancer prevention and control. The two applications are analyzed and issues related to user acceptance and future directions are presented. mHealth has the potential to shape health future not by just translating existing applications but by inspiring new ideas.

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