Catheters are increasingly being used to tackle problems in the cardiovascular system. However, positioning precision of catheter tip is negatively affected by hysteresis. To ensure tissue damage due imprecise avoided, hysteresis be understood and compensated for. This work investigates feasibility model with a Long Short-Term Memory (LSTM) network. A bench-top setup containing distal segment w...

Energy storage can make key contributions to balancing future low-carbon energy systems by providing a variety of system services, with batteries expected be widely deployed as costs fall innovation. This paper assesses whether synergies exist between two the most significant these fast frequency response and arbitrage, if battery (BESS) is used deliver both. A techno-economic model developed s...

Abstract Tiltrotor aircraft are growing in prevalence due to the usefulness of their unique flight envelope. However, aeroelastic stability—particularly whirl flutter stability—is a major design influence that demands accurate prediction. Several nonlinearities may be present tiltrotor systems, such as freeplay, often neglected for simplicity, either modelling or stability analysis. effects can...

Experiments near the lock-in region in maximally dissipative non-Hermitian systems, e.g., conventional laser gyroscopes deadband, have run up against Petermann limit, where excess noise exactly cancels any scale-factor enhancement resulting no overall precision. As a result, one might be tempted to conclude that exceptional points (EPs) generally cannot used increase precision of sensors. Indee...

This paper describes a predictive event-based control algorithm focused on practical issues. The Generalized Predictive Control scheme is used as predictive controller, and sensor and actuator deadbands are included in the design procedure to provide event-based capabilities. The first configuration adapts a control structure to deal with asynchronous measurements; the second approach is used f...

Proportional electro-hydraulic valves are ubiquitous as flow actuators in hydraulic systems. Flow regulation is the result of the accurate positioning of a spool driven by a solenoid and a position sensor. The overall control consists of two hierarchical loops: the inner loop is the solenoid current regulator with a closed-loop bandwidth close to 1 kHz. A modelbased digital regulator of this ki...

In this paper, a procedure for quantifying valve stiction in control loops based on ant colony optimization has been proposed. Pneumatic control valves are widely used in the process industry. The control valve contains non-linearities such as stiction, backlash, and deadband that in turn cause oscillations in the process output. Stiction is one of the long-standing problems and it is the most ...

One of the key challenges in telepresence and teleaction systems is the fact that a global control loop is closed over a communication network. The transmission delay of haptic information is extremely critical. Therefore, new data samples from the haptic sensors are typically forwarded immediately to the receiver which leads to high packet generation rates and high network load especially if t...

ower system loads are sensitive to frequency and following system frequency changes the aggregate load change follows the frequency deviation. When a generating unit is tripped or additional load is added to the system, the power mismatch is initially compensated by an extraction of the kinetic energy from the system inertial storage (the spinning masses) that causes a system frequency drop. As...