Area estimation circuit for Weigh-In-Motion applications using piezoelectric transducers

In this article, the analysis of the acoustic path during the ultrasonic pulse echo testing of the rail head in production is carried out. The influence of the parameters of the applied piezoelectric transducers on the distribution of sensitivity for the sounding scheme used in the existing installations is estimated and the real sensitivity of detecting defects of the «non-metallic inclusion» type is estimated.

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Small Area Estimation of Insurance Coverage for Louisiana Parishes

SSRN Electronic Journal ◽

10.2139/ssrn.2939543 ◽

2017 ◽

Author(s):

Zhengjia Sun

Keyword(s):

Small Area ◽

Small Area Estimation ◽

Insurance Coverage ◽

Area Estimation

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SPECTRAL SIGNATURE IDENTIFICATION AND SURFACE AREA ESTIMATION FOR FRUIT CROPS GROWN IN TIBA REGION OF WESTERN NILE DELTA OF EGYPT BY USING LANDSAT-8 SATELLITE REMOTE SENSING DATA

Journal of Plant Production ◽

10.21608/jpp.2015.52120 ◽

2015 ◽

Vol 6 (12) ◽

pp. 1917-1940

Author(s):

D. El-Ansary

Keyword(s):

Remote Sensing ◽

Surface Area ◽

Satellite Remote Sensing ◽

Nile Delta ◽

Remote Sensing Data ◽

Spectral Signature ◽

Landsat 8 ◽

Fruit Crops ◽

Area Estimation ◽

Nile Delta Of Egypt

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Piezoelectric Energy Harvesting Solutions: A Review

Sensors ◽

10.3390/s20123512 ◽

2020 ◽

Vol 20 (12) ◽

pp. 3512 ◽

Cited By ~ 12

Author(s):

Corina Covaci ◽

Aurel Gontean

Keyword(s):

Energy Harvesting ◽

Piezoelectric Effect ◽

Piezoelectric Transducers ◽

Piezoelectric Energy Harvesting ◽

Piezoelectric Energy ◽

Direct Piezoelectric Effect ◽

Harvesting Technique ◽

Different Shapes ◽

Piezoelectric Devices ◽

Review Current

The goal of this paper is to review current methods of energy harvesting, while focusing on piezoelectric energy harvesting. The piezoelectric energy harvesting technique is based on the materials’ property of generating an electric field when a mechanical force is applied. This phenomenon is known as the direct piezoelectric effect. Piezoelectric transducers can be of different shapes and materials, making them suitable for a multitude of applications. To optimize the use of piezoelectric devices in applications, a model is needed to observe the behavior in the time and frequency domain. In addition to different aspects of piezoelectric modeling, this paper also presents several circuits used to maximize the energy harvested.

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Small area estimation under a temporal bivariate area-level linear mixed model with independent time effects

Statistical Methods & Applications ◽

10.1007/s10260-020-00521-x ◽

2020 ◽

Author(s):

Roberto Benavent ◽

Domingo Morales

Keyword(s):

Small Area ◽

Mixed Model ◽

Linear Mixed Model ◽

Small Area Estimation ◽

Time Effects ◽

Area Estimation

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Impedance Spectroscopy of Lead-Free Ferroelectric Coatings

Coatings ◽

10.3390/coatings11020221 ◽

2021 ◽

Vol 11 (2) ◽

pp. 221

Author(s):

Mariya Aleksandrova ◽

Ivailo Pandiev

Keyword(s):

Composite Coatings ◽

Electrical Circuit ◽

Ferroelectric Materials ◽

Piezoelectric Transducers ◽

Lead Free ◽

Electrical Behavior ◽

Oxide Composite ◽

Before And After ◽

Frequency Dependences ◽

Good Agreement

This paper presents impedance measurements of ferroelectric structures involving lead-free oxide and polymer-oxide composite coatings for sensing and energy harvesting applications. Three different ferroelectric materials grown by conventional microfabrication technologies on solid or flexible substrates are investigated for their basic resonant characteristics. Equivalent electrical circuit models are applied to all cases to explain the electrical behavior of the structures, according to the materials type and thickness. The analytical results show good agreement with the experiments carried out on a basic types of excited thin-film piezoelectric transducers. Additionally, temperature and frequency dependences of the dielectric permittivity and losses are measured for the polymer-oxide composite device in relation with the surface morphology before and after introduction of the polymer to the functional film.

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A phononic interface between a superconducting quantum processor and quantum networked spin memories

npj Quantum Information ◽

10.1038/s41534-021-00457-4 ◽

2021 ◽

Vol 7 (1) ◽

Author(s):

Tomáš Neuman ◽

Matt Eichenfield ◽

Matthew E. Trusheim ◽

Lisa Hackett ◽

Prineha Narang ◽

...

Keyword(s):

Quantum State ◽

Piezoelectric Transducers ◽

High Fidelity ◽

Hybrid Architecture ◽

Quantum Networks ◽

Superconducting Circuit ◽

Artificial Atom ◽

Experimental Parameters ◽

Quantum Processor ◽

State Spin

AbstractWe introduce a method for high-fidelity quantum state transduction between a superconducting microwave qubit and the ground state spin system of a solid-state artificial atom, mediated via an acoustic bus connected by piezoelectric transducers. Applied to present-day experimental parameters for superconducting circuit qubits and diamond silicon-vacancy centers in an optimized phononic cavity, we estimate quantum state transduction with fidelity exceeding 99% at a MHz-scale bandwidth. By combining the complementary strengths of superconducting circuit quantum computing and artificial atoms, the hybrid architecture provides high-fidelity qubit gates with long-lived quantum memory, high-fidelity measurement, large qubit number, reconfigurable qubit connectivity, and high-fidelity state and gate teleportation through optical quantum networks.

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