Results 111 to 120 of about 261,095 (203)

Characterisation of screen printable piezoelectric thick-films

, 1997
Experimental techniques for measuring piezoelectric coefficient d33 of screen printed thick-film lead zirconate totanate (PZT) pastes are described, together with a comparison of these values for different paste formulations. In particular, the effect of
Harris, N.R., Atkinson, J.K., White, N.M., Dargie, P.G., Sion, R.P.   +4 more
core   +1 more source

Investigation of New Accelerometer Based on Capacitive Micromachined Ultrasonic Transducer (CMUT) with Ring-Perforation Membrane

Micromachines
Capacitive micromachined ultrasonic transducer (CMUT) has been widely studied due to its excellent resonance characteristics and array integration. This paper presents the first study of the CMUT electrostatic stiffness resonant accelerometer. To improve
Luhao Gou, Hongliang Wang, Qi Ding, Yulong Liu, Runze Yang, Feng Zhang, Pengcheng Zhang, Gang Cao   +7 more
doaj   +1 more source

A new out-of-plane resonant micro accelerometer

, 2011
This paper reports a new design of an out-of-plane resonant micro-machined accelerometer. The geometrical setting is optimized in order to improve the sensitivity and the linearity of the sensor while keeping its dimensions very small. The accelerometer,
S. Zerbini, CORIGLIANO, ALBERTO, COMI, CLAUDIA   +2 more
core  

From Skull Density Ratio‐based eligibility to efficiency‐informed planning: Predictive modeling of thermal response in MR‐guided focused ultrasound

Medical Physics, Volume 53, Issue 9, September 2026.
Abstract Background Transcranial MR‐guided focused ultrasound (MRgFUS) enables incisionless thermoablation of deep brain targets and has become an established modality in functional neurosurgery. Treatment efficiency is strongly influenced by skull‐mediated ultrasound attenuation.
José Angel Pineda‐Pardo, Jaime Caballero‐Insaurriaga, Marta Castillo‐Ortiz, Miguel López‐Aguirre, Rafael Rodríguez‐Rojas, Jorge U. Máñez‐Miró, Michele Matarazzo, Marta Del Alamo, Raul Martínez‐Fernández   +8 more
wiley   +1 more source

Research on Surface Mounting Technology of Micromechanical Silicon Resonant Accelerometer [PDF]

, 2013
Surface mounting technology is a key process in MEMS packaging. The finite element model of package structures was established in this paper according to the designed micromechanical silicon resonant accelerometer.
Huang, Libin, Gao, Yang
core   +1 more source

Dynamic Characteristics Analysis of a Large Wind Turbine Gearbox Supported by Journal Bearings Under Different Lubrication States

Wind Energy, Volume 29, Issue 9, September 2026.
ABSTRACT Due to their superior load density, planetary gear journal bearings (PGJB) are progressively replacing rolling element bearings in wind turbine gearboxes; therefore, accurately revealing the dynamic characteristics of drivetrains supported by these bearings under variable operating conditions is crucial for ensuring operational reliability ...
Pengcheng Jin, Hong Jiang, Jianxing Zhou, Yuliang Yang   +3 more
wiley   +1 more source

A series-parallel load-resonant converter for a controlled-current arc-welding power supply [PDF]

A power supply incorporating a series-parallel load-resonant converter, capable of very efficient operation over a wide range of output power is presented. The series-parallel load-resonant converter is shown to have three pairs of resonant frequencies.
Pollock, Helen Geraldine Phyllis
core  

Comparative Field Evaluation of Active and Passive Transient‐Based Techniques for Pipeline Condition Assessment

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Hydraulic transient‐based techniques are increasingly applied for non‐intrusive condition assessment of buried water pipelines. This study presents systematic field experiments comparing active and passive approaches within the asbestos cement water supply network at the University of Canterbury.
Sirui Wang, Zhao Li, Pedro Lee, Tong‐Chuan Che, Yun‐jie Li, Ling Zhou   +5 more
wiley   +1 more source

Beyond self‐report: The relationship between daily social media use and sleep in university students

British Journal of Health Psychology, Volume 31, Issue 3, September 2026.
Abstract Objectives University students regularly report insufficient sleep, with almost one‐third of students achieving less than 6.5 hours per night. Social media is one behaviour shown to negatively influence sleep. However, there has been a reliance on self‐report measures of both processes, which may not reflect objective behaviour. The aim was to
Hayley Breare, Thomas McAlpine, Jessica Charlesworth, Patrick Clarke, Barbara A. Mullan   +4 more
wiley   +1 more source

Resonance frequency measurement for space accelerometer

Sensors and Actuators A: Physical
Resonance frequency measurements are used for various applications: atomic force microscopes, mass detection, biochemical and inertial sensors. In this article a detailed analysis of the performances of a resonance frequency measurement method are presented and demonstrated using a space grade accelerometer.
Didier Chérubin Negretto, Jan ten Pierick, Luigi Ferraioli, Daniel Bieri, Pierrick Cheiney, Olivier Jolly, Domenico Giardini   +6 more
openaire   +2 more sources