In order to improve the accuracy of the digital to analog conversion (DAC), the reflection and crosstalk problems of the signal transmission process were studied in this paper. The Hyperlynx software was used for the simulation study of reflection and crosstalk problems of the master clock signal in the DAC circuit. Source end cascading termination resistor and remote end termination resistor a...

We explore the synchronization and switching behavior of a system of two identical van der Pol oscillators coupled by a stochastically timevarying resistor. Triggered by the time-varying resistor, the system of oscillators switches between synchronized and anti-synchronized behavior. We find that the preference of the synchronized/antisynchronized state is determined by the ratio of the probabi...

The aim of this study was to evaluate histomorphometrically the influence of two techniques of dental implant site preparation on bone healing around titanium implants. Fifteen male Wistar rats (±300 g) were used in the study. Each tibia was randomly assigned to receive the implant site preparation either with a conventional drilling technique (control - DRILL group) or with a piezoelectric dev...

The article presents a construction, static testing and modelling of a single flapper nozzle pneumatic valve. Authors show testing of piezo tube PT230 which distinguishing feature is deflection in two directions. This testing is preliminary work in design of a novel electropneumatic valve. Studies have been performed on a special designed bench which consists of a pneumatic valve, which used pi...

Piezo-electric devices possess the ability to produce high voltages without load. However, to harvest this energy, the complex and capacitive internal structure must be deal with. This capacitive behavior makes the AC-DC conversion too involved. If a buck-boost topology is to be designed to regulate the DC output, the discontinuous mode provides constant input impedance for small amount of powe...

Parpaite and Coste introduce Piezo channels and their role in mechanotransduction.

Analytical and numerical simulations are carried out in order to identify physical parameters affecting acoustic and motion control by viscoelastic piezo-electric and material damping. Numerical simulations in terms of critical parameters, such as relaxation functions of the structure and piezo-electric devices, aerodynamic coefficients, Mach number, are carried out to evaluate their sensitivit...

High temperature XRD has been employed to monitor the devitrification of DuPont 951 low temperature co-fued ceramic (LTCC) and DuPont ES4005 resistor ink. The LTCC underwent devitrification to an anorthite phase in the range of 835-875 ‘C with activation energy of 180 kJ/mol as calculated from kinetic data. The resistor paste underwent devitrification in the 835875 ‘C range forming monoclinic a...