An invariance principle for a class of ordinary differential equations with discontinuous right-hand
side is developed. Based on this principle, asymptotic stability of one-degree-of-…

We present a new algorithm to determine, quickly and accurately, the best-in-focus image of
biological particles. The algorithm is based on a one-dimensional Fourier transform and on …

The future of the wind energy industry passes through the use of larger and more flexible wind
turbines in remote locations, which are increasingly offshore to benefit stronger and more …

The development of environmentally compatible energy technologies has been accelerated
in response to the growing concern of the impacts from climate change. Wind energy is …

This paper considers power generation control in variable-speed variable-pitch horizontal-axis
wind turbines operating at high wind speeds. A dynamic chattering torque control and a …

Magnetorheological (MR) dampers have received special attention as semi-active devices
for mitigation of structural vibrations. Because of the inherent nonlinearity of these devices, it …

Nonlinear H ∞ -controller synthesis is developed for nonsmooth time-varying systems via
measurement feedback. A local H ∞ -controller is derived by means of a certain perturbation …

In this paper, a new modified Chua oscillator is introduced. The original Chua oscillator is
well known for its simple implementation and mathematical modeling. A modification of the …

This paper shows the construction of a low-cost, open-source mechanical ventilator. The
motivation for constructing this kind of ventilator comes from the worldwide shortage of …

Converting the sunlight into electricity has gained the world’s agenda—institutions and
individuals have been relying on solar technology more than ever. Still, few workers are qualified …