In this paper, the thermal analysis of a membrane antenna structure is performed, and then, rigid-flexible coupling dynamic modeling control membrane-antenna-satellite system are studied with stress considered. The model derived based on finite element method by discretizing into 1D 2D elements. Considering stress, vibration modes obtained, hybrid coordinate method. To reduce caused attitude ma...

A lightweight flapping-wing micro air vehicle (MAV) was designed and built and successfully filed in the sky. The unsteady aerodynamics associated with this MAV was detailedly studied by using the method of computational fluid dynamics (CFD).The variations of different parameters of the flapping MAV, such as flapping amplitude, pitch amplitude and flapping frequency, were investigated with nume...

this paper proposes a flexible power electronic transformer (fpet) for the application in the micro-grids. the low frequency transformer is usually used at the point of common coupling (pcc) to connect the low voltage grid and utility network to each other. the conventional 50hz transformer results in enhanced low voltage-grid power management system during grid-connected operation. in this pap...

Neurons with oscillatory properties are a common feature of the nervous system, but little is known about how neural oscillators shape the behavior of neuronal networks or how network interactions influence the properties of neural oscillators. Mathematical models are used to examine the effect of electrically coupling an oscillatory neuron to a second neuron that is either silent or tonically ...

The Coupling Map (CM) has been proposed as an analytical tool to describe the dynamic behavior of long reach manipulators in the micro-gravity of space. The systems configuration considered consists of a relatively small high performance manipulator carried by a large flexible deployable structure, such as the one proposed for International Space Station Alpha. Such systems are subject to perfo...

There is a growing need at creating wealth from wastes. Waste tyres have been littering our environment. to create ways of utilizing them effectively after their critical mechanical properties investigated. Flexible couplings made waste were designed using power ratings and service factors generating plant. Coupling sizes, dimensions, among other physical selected varying Internal Combustion En...

Three-bond heteronuclear coupling constants (3JCH) are extremely useful in describing flexible models for oligosaccharides. We show that antiphase methods for measuring 3JCH in oligosaccharides have limited reliability but that the coupling constants can be reliably measured in natural abundance by quantitative J-correlation methods. Interpretation of 3JCH data for a pentasaccharide (lacto-N-fu...