Results 61 to 70 of about 6,536 (199)

An aerosol deposition based MEMS piezoelectric accelerometer for low noise measurement

open access: yesMicrosystems & Nanoengineering, 2023
Potentially applied in low-noise applications such as structural health monitoring (SHM), a 1-axis piezoelectric MEMS accelerometer based on aerosol deposition is designed, fabricated, simulated, and measured in this study.
Xuewen Gong   +4 more
doaj   +1 more source

Experimental Modal Analysis‐Driven Gaussian Process Regression Modeling of Rectangular Steel Beams With Various Hole Geometries

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Understanding the dynamic behavior of structural components is crucial for optimizing performance and ensuring structural integrity. This study presents a new method that combines a systematic experimental investigation of four distinct hole geometries (circular, square, compact rectangular, and long rectangular) with varying hole counts, all ...
Amir Hossein Rabiee   +3 more
wiley   +1 more source

Desenvolvimento de um protótipo analisador de vibração de baixo custo para uso em manutenção preditiva [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós- Graduação em Engenharia Mecânica, Florianópolis, 2014.No presente trabalho foi desenvolvido e avaliado um protótipo de equipamento de análise de ...
González, Roberto Carlos Díaz
core  

A Passive Low‐Frequency, High‐Sensitivity Diamagnetic Levitation Accelerometer

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Despite the great potential of diamagnetic levitation accelerometers in detecting low‐frequency and weak motion, there is still a demand to further enhance their sensitivity for geophysical and microgravity applications. In this study, a straightforward structural modulating approach is presented to enhance the sensitivity of diamagnetic ...
Yuanping Xu   +5 more
wiley   +1 more source

The Pier Luigi Nervi's concrete structure of Palazzetto dello Sport: Modeling and dynamic characterization

open access: yesStructural Concrete, EarlyView.
Abstract This paper presents a numerical and experimental study aimed at the modeling and dynamic characterization of the reinforced concrete structure of the Palazzetto dello Sport in Rome, designed and by Pier Luigi Nervi with Annibale Vitellozzi, and built by Nervi & Bartoli contractors in 1956‐57.
Jacopo Ciambella   +2 more
wiley   +1 more source

A novel piezoresistive polymer nanocomposite MEMS accelerometer

open access: yes, 2017
A novel polymer MEMS (micro electro mechanical systems) accelerometer with photo-patternable polymer nanocomposite as a piezoresistor is presented in this work.
Prajakta, S   +4 more
core   +2 more sources

Nonlinear Vibration Study Based on Uncertainty Analysis in MEMS Resonant Accelerometer

open access: yesSensors, 2020
This paper aims to develop a resonant accelerometer for high-sensitivity detection and to investigate the nonlinear vibration of the MEMS resonant accelerometer driven by electrostatic comb fingers.
Yan Li   +4 more
doaj   +1 more source

Quantitative Accelerated Life Testing of MEMS Accelerometers

open access: yesSensors, 2007
Quantitative Accelerated Life Testing (QALT) is a solution for assessing thereliability of Micro Electro Mechanical Systems (MEMS). A procedure for QALT is shownin this paper and an attempt to assess the reliability level for a batch of MEMSaccelerometers is reported.
Bazu, Marius   +5 more
openaire   +3 more sources

Increased p‐Tau181 Levels After Overnight Wakefulness Are Associated With Neuroticism in Young Women

open access: yesJournal of Sleep Research, EarlyView.
Overnight wakefulness, mimicking night shift conditions, impaired morning vigilance in healthy, reproductive‐aged women, regardless of estradiol or neuroticism. However, the overnight wakefulness‐related rise in the Alzheimer's disease blood biomarker p‐Tau181 was greater in women with higher neuroticism, suggesting that neurobiological vulnerability ...
Diana A. Nôga   +14 more
wiley   +1 more source

Investigation and validation of consumer device accelerometers for the assessment of whole-body vibration

open access: yesCogent Engineering, 2017
There exist a discrepancy between the usage of the expensive standard accelerometer and the cheap and accessible consumer device accelerometer for the measurement of whole-body vibration (WBV).
B.O. Akinnuli   +3 more
doaj   +1 more source

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