An electromechanical coupling driving system is a commonly used for large overloading ships. In this paper, dual input model, including an inverter power supply, three-phase induction motor, fixed-axis gear, and load, established. The influences of the gear error, inverter, stiffness on vibration characteristics are studied, each parameter analyzed. supply part considers constant voltage–freque...

We aimed to assess the accuracy of Doppler tissue imaging (DTI) in detecting right ventricle (RV) dysfunction and electromechanical coupling alteration following pulmonary hypertension (PHT) in rat. PHT was induced by chronic hypoxia exposure (hypoxic PHT) or monocrotaline treatment (monocrotaline PHT). In both PHT models, we observed transparietal RV pressure increase and remodeling, including...

This paper reports a novel technique enabling to tune the resonant frequency of linear inertial piezoelectric energy harvesters through the control strategy of the associated electronic interface circuit. When associated with piezoelectric devices exhibiting high electromechanical coupling, it is expected to enable the variation of the resonant frequency in large proportions.

Voltage-gated ion channels play a central role in the generation of action potentials in the nervous system. They are selective for one type of ion - sodium, calcium, or potassium. Voltage-gated ion channels are composed of a central pore that allows ions to pass through the membrane and four peripheral voltage sensing domains that respond to changes in the membrane potential. Upon depolarizati...

Electromechanical systems are integral to modern technologies and their accurate simulation is vital for understanding system behavior optimizing designs. ElectroM, a MATLAB-based open-source software tool, provides advanced capabilities simulating analyzing such systems, offering two types of coupling formulations between mechanical electrical domains, module obtaining dimensionless groups, en...

Membrane proteins are uniquely placed at the interface of the internal and external milieu of cells, and many of them unsurprisingly function as signal transducers involved in pathways critical for normal physiological activity. A majority of these membrane proteins have a modular architecture with distinct sensing and catalytic domains. Understanding how information flows from one part of the ...

Voltage-dependent ion channels contain voltage sensors that allow them to switch between nonconductive and conductive states over the narrow range of a few hundredths of a volt. We investigated the mechanism by which these channels sense cell membrane voltage by determining the x-ray crystal structure of a mammalian Shaker family potassium ion (K+) channel. The voltage-dependent K+ channel Kv1....

Electro-hydraulic servo pump control belongs to an electro-hydraulic coupling motion system, which involves the mutual penetration and integration of mechanical, hydraulic, electrical, control, other disciplines, as well time-varying, uncertain, multisource, multifield problems internal external excitation makes system have characteristics a complex model, strong coupling, nonlinearity, time-va...