Availability is one of the most frequently specified quality attributes for computerized systems and the computation of availability requires knowledge about the reliability of the system. Although much research has been devoted to software system reliability, much work remains to be done in identifying ways to predict reliability of assemblies of components. We are designing an experiment for ...

Piezo bimorph mirrors are versatile active optics used on many synchrotron beamlines. However, many bimorphs suffer from the `junction effect': a periodic deformation of the optical surface which causes major aberrations to the reflected X-ray beam. This effect is linked to the construction of such mirrors, where piezo ceramics are glued directly below the thin optical substrate. In order to ad...

As extreme events increase in frequency, flow-disrupting large-scale structures become ever more susceptible to collapse due local scour effects. The objective of this study was validate the functionality passive, flow-excited sensors that can continue operate during an event. sensors, or piezo-rods, feature continuous piezoelectric polymer strips embedded within and along length slender cylind...

In magnetic disk drive actuators, the application of piezo electric material can be used to re ne and accomplish track following in (extremely) high track density magnetic data storage. In this paper the results on the modeling and control of a piezobased milli-actuator are presented. The modeling is done on the basis of a least squares curve tting of an estimated frequency response and taking ...

ETRI Journal, Volume 29, Number 1, February 2007 A new low-voltage CMOS interface circuit with digital output for piezo-resistive transducer is proposed. An input current sensing configuration is used to detect change in piezo-resistance due to applied pressure and to allow lowvoltage circuit operation. A simple 1-bit first-order deltasigma modulator is used to produce an output digital bitstre...

The mechanical properties of a homologue series of side-chain mesomorphic netM.orks were studied with a piezo-rheometer over frequencies ranging from 10~~

background: over the past several years, mammals have been successfully cloned by either the splitting of an early stage embryo or nuclear transfer of adult somatic cells (nt) into oocytes. although it has been 15 years since the generation of the first cloned mammals from somatic cells by nt, the success rate for producing live offspring by this technique is low regardless of the cell type and...

Quantum well (QW) structures are formed in nanometer-thickness-scale semiconductors with different bandgaps sandwiched configurations and can offer a wide variety of advantages as active layers for optoelectronic devices, e.g., laser diodes, light emit photodetectors, solar cells. Due to the non-centrosymmetric crystal structure, third-generation semiconductor, such ZnO, AlN, GaN, InN, generate...

The noncentrosymmetric nature of single-layer (SL) transition-metal dichalcogenides (TMD) manifests itself in the finite piezoelectricity and valley-Zeeman coupling. We microscopically model nonlinear exciton transport nanobubbles SL TMDs. Thanks to giant piezoelectric effect, we obtain an enormous internal electric field, ${E}_{\mathrm{piezo}}\ensuremath{\sim}{10}^{7}\phantom{\rule{0.16em}{0ex...