Active Control Research Papers - Academia.edu (original) (raw)

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- Mechanical Engineering, Aerospace Engineering, Active Control, Vortex shedding
- by Martin Bouchard
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- Neural Networks, Vibration Control, Convergence, Neural Network
- by Pascal Maussion
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- Engineering, Computer Science, Power Electronics, Kalman Filter
- by Christine Serviere
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- Signal Processing, Modeling, A Priori Knowledge, Vibration Control
- by Yvon Renotte
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- X Ray Astronomy, Dark Matter, X ray absorption spectroscopy, Adaptive Optics
- by Jordan Navarro
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- Visual perception, Automobiles, Safety, Red Light
- by Christoph Däpp
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- Psychology, Cognitive Science, Speech perception, Aging
- by rocco alaggio
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- Mechanical Engineering, Civil Engineering, Applied Mathematics, Non Linear Dynamics
- by Roland Glowinski
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- Engineering, Computational Physics, Finite element method, Drag Reduction
- by Steven Roodenrys and +2
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- Cognitive Science, Attention-Deficit/Hyperactivity Disorder, Working Memory, Electroencephalography

Stroke is a cardiovascular accident within the brain resulting in motor and sensory impairment in most of the survivors. A stroke can produce complete paralysis of the limb although sensory abilities are normally preserved. Functional electrical stimulation (FES), robotics and brain computer interfaces (BCIs) have been used to induce motor rehabilitation. In this work we measured the brain activity of healthy volunteers using electroencephalography (EEG) during FES, passive movements, active movements, motor imagery of the hand and resting to compare afferent and efferent brain signals produced during these motor related activities and to define possible features for an online FES-BCI. In the conditions in which the hand was moved we limited the movement range in order to control the afferent flow. Although we observed that there is a subject dependent frequency and spatial distribution of efferent and afferent signals, common patterns between conditions and subjects were present ma...

- by Ander Ramos-murguialday
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- Robotics, Algorithms, Electroencephalography, Brain Computer Interface
- by Brian Fabien
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- Applied Mathematics, Optimal Control, digital PID controller, Active Control
- by Debi Das
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- Active Control, Least Mean Square, Electrical And Electronic Engineering
- by Sandra Nauwelaerts
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- Swimming, Swimming speed, Animals, Active Control

In this work, the active vibration control of a uniform cantilever beam using piezoelectric materials subjected to transverse vibrations is studied. The equation of motion of a beam bonded with the piezoelectric actuator is realized based on the Euler Bernoulli beam theory and the Hamilton's principle. A linear time invariant state space model is derived. Numerical simulations of the equation of motion are performed. Moreover, a finite element model of the beam-piezo system is done using ANSYS APDL©. Two control algorithms were also implemented using ANSYS APDL code to reduce the flapwise bending vibrations of the beam. The two control techniques are: Linear quadratic regulator (LQR) and positive-position-feedback (PPF). Results of the PPF simulations were compared with that of the LQR control and the advantage of using PPF control over LQR control in the finite element simulations is presented.

- by Ayman El-Badawy
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- Mechanical Engineering, Applied Mathematics, Ansys, Active Control
- by stefania santini and +1
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- Vehicle Dynamics, Adaptive Control, Stability, Numerical Simulation
- by G. Gateau
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- Engineering, Power System, Digital Signal Processing, State Estimation
- by Peter Buckle
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- Social Support, Industrial Ergonomics, Focus Group, Active Control
- by H. Van Brussel
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- Engineering, Sound, Finite Element, Low Frequency
- by Jon Vøllestad and +1
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- Psychology, Clinical Psychology, Anxiety Disorders, Depression
- by Ralph Mazenko
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- Surgery, Randomization, Membrane Proteins, Adolescent
- by muhammad hadi
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- Engineering, Structural Control, Active Control, High Speed
- by Francis Heylighen
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- Active Control
- by Colin Hansen
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- Mechanical Engineering, Architecture, Adaptive Control, Classical Physics
- by Sue Cobb
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- Information Systems, Human Computer Interaction, Comparative Study, User eXperience
- by Marlena A. Bednarska
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- Risk Management, Active Control, Poznan University of Economics

Aging is associated with progressive losses in function across multiple systems, including sensation, cognition, memory, motor control, and affect. The traditional view has been that functional decline in aging is unavoidable because it is a direct consequence of brain machinery wearing down over time. In recent years, an alternative perspective has emerged, which elaborates on this traditional view of age-related functional decline. This new viewpoint--based upon decades of research in neuroscience, experimental psychology, and other related fields--argues that as people age, brain plasticity processes with negative consequences begin to dominate brain functioning. Four core factors--reduced schedules of brain activity, noisy processing, weakened neuromodulatory control, and negative learning--interact to create a self-reinforcing downward spiral of degraded brain function in older adults. This downward spiral might begin from reduced brain activity due to behavioral change, from a...

- by Amy Bronstone
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- Cognitive Science, Electrophysiology, Cognition, Motor Control
- by faraz ahmed
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- Engineering, Control Theory, Sound, Physical sciences
- by Sue Cobb
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- Information Systems, Human Computer Interaction, Comparative Study, User eXperience
- by Rainer Leonhart
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- Research Design, Occupational Therapy, Dementia, Health Care
- by Pieternel Luning
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- Quality Management, Quality Assurance, Raw materials, Food Quality
- by Paula Goolkasian and +2
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- Psychology, Cognitive Science, Philosophy, Sustained Attention

Traffic congestion, pollution due to vehicular emissions and fuel energy crises are the major problems that have inspired research for the design of efficient and smaller vehicles as a regular mode of transport with a significantly lower carbon footprint. With an increased dependency on certain countries for fuel energy, electric mobility has been encouraged by policy makers so that national interests are not compromised. At the same time, enhanced standards of living have resulted in a demand for safer and comfortable transport. All of these factors have led to a need for a mode of transport that is efficient, compact, safe and comfortable. Electric three-wheelers are seen as one of the promising options that fits all of these requirements. Due to their high propensity to rollover during cornering, however, the use of three-wheeled vehicles (3Ws) is limited to low-speed applications for cheap transport. Recent developments in the field of rollover mitigation through active tilt control mechanisms indicate that the future mode of transport will be more exciting than the existing one. This paper is a review mainly focused on the recent technological developments in active-tilt-controlled three-wheeled vehicles. This paper gives a detailed review of the methodologies chosen, control strategies adopted, types of vehicle chosen for test/simulation, mathematical models applied, key findings and future work proposed to address the dynamics-related issues of tilting 3Ws.

- by Jignesh Sindha
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- Electric Vehicles, Automobile, Vehicle Safety, Automobile Engineering
- by Kenneth Usuki and +1
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- Complementary and Alternative Medicine, Breast Cancer, Quality of life, Radiation Therapy

This paper presents a Modelica library developed for the dynamic simulation of a motorcycle, developed within the Dymola environment (see (1), (2), (3)) and tailored to test and validation of active control systems for motorcycle dynamics. As a matter of fact, as a complete analytical model for two-wheeled vehicles is not directly available due to the complexity of their dynamic

- by Gianni Ferretti
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- Dynamic Simulation, Active Control, Reliability Modeling, Analytical Model
- by Paula Barrett
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- Psychology, Clinical Psychology, Family Therapy, Cognitive Science
- by A. Fasana
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- Viscoelasticity, Finite element method, Vibration Control, Numerical Method
- by Yukio Tamura and +1
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- Civil Engineering, United States, Active Control, Structural Response

... a, Wayne State University, Department of Mechanical Engineering Detroit, MI 48202, USA. b, Air Force Research Laboratory AFRL/VASD, Wright-Patterson Air Force Base, OH 45433, USA. Received 9 January 2003; Accepted 18 November 2003.... more

- by Chris Pettit
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- Engineering, Structural Dynamics, Sensitivity Analysis, Physical sciences
- by facio ana
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- Earthquake Engineering, Active Control, Smart Structures, Semi-Active Control
- by Myosef MTsegaye
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- Engineering, System Dynamics, Mathematical Sciences, Noise reduction
- by Jordan Navarro
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- Psychology, Road safety, Attention, Traffic control
- by Margaret Trotter
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- Visual perception, Automobiles, Safety, Red Light
- by Luigi Piroddi
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- Mechanical Engineering, Applied Mathematics, Computer Architecture, FPGA
- by mustafa move
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- Nuclear Fusion, Real Time Control, Research and Development, Active Control
- by K P S Rana
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- Fuzzy Logic, Fuzzy Logic Control, Vibration Control, Fuzzy Control
- by Sue Cobb
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- Information Systems, Human Computer Interaction, Comparative Study, User eXperience

Spintronics, or spin electronics, involves the study of active control and manipulation of spin degrees of freedom in solid-state systems. This article reviews the current status of this subject, including both recent advances and... more

- by Jeisson Fabian
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- Physics, Active Control, Spin-Orbit Coupling, Charge Transport