Results 1 to 10 of about 73,494 (308)

Event-Based Angular Speed Measurement and Movement Monitoring [PDF]

open access: yesSensors, 2022
Computer vision techniques can monitor the rotational speed of rotating equipment or machines to understand their working conditions and prevent failures.
George Oliveira de Araújo Azevedo   +5 more
doaj   +4 more sources

Quantifying and analysing the angular momentum in volleyball jump serve during the aerial phase: relationship to arm swing speed [PDF]

open access: goldPeerJ
Background In volleyball, the jump serve is a crucial and commonly used serving technique. Nonetheless, the angular momentum developed during the jump serve remains unexplored.
Lingjun Liu   +4 more
doaj   +3 more sources

Angular and linear speed cells in the parahippocampal circuits [PDF]

open access: yesNature Communications, 2022
It remains unclear how the hippocampal region integrates position and self-motion information to update spatial representations. Here, the authors report grid and head direction cells as well as cells encoding self-motion parameters such as angular head ...
Davide Spalla   +2 more
doaj   +5 more sources

An EM Induction Hi-Speed Rotation Angular Rate Sensor [PDF]

open access: yesSensors, 2017
A hi-speed rotation angular rate sensor based on an electromagnetic induction signal is proposed to provide a possibility of wide range measurement of high angular rates. An angular rate sensor is designed that works on the principle of electromagnetism (
Kai Li, Yuan Li, Yan Han
doaj   +3 more sources

Measurement crankshaft angular speed of an OM403 engine [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2017
In this paper, the methodology of the measurement of the angular speed of the crankshaft of a ten-cylinder diesel OM403 engine is presented, with regular and irregular engine operation.
Biočanin Stojko, Biočanin Milica
doaj   +2 more sources

Gyroscope as quantum angular speed meter [PDF]

open access: green, 2018
We found that the measurement sensitivity of an optical integrating gyroscope is fundamentally limited due to ponderomotive action of the light leading to the standard quantum limit of the rotation angle detection. The uncorrelated quantum fluctuations of power of clockwise and counterclockwise electromagnetic waves result in optical power-dependent ...
Andrey B. Matsko, S. P. Vyatchanin
openalex   +3 more sources

Monodromic singularities without curves of zero angular speed

open access: yesAIMS Mathematics
We consider planar analytic vector fields $ \mathcal{X} $ having a monodromic singular point with Poincaré map $ \Pi $. We use the fact that there always exists a real analytic invariant curve $ F = 0 $ of $ \mathcal{X} $ in a neighborhood of that ...
Isaac A. García, Jaume Giné
doaj   +2 more sources

Analysis of impact of shaft speed and external load on the radial ball bearing lubrication regimes [PDF]

open access: yesFME Transactions, 2022
Appropriate lubrication of the rolling bearing is needed to lower the friction between the surfaces in mutual contact and their wear. A lubricant should completely separate the rolling elements from the raceways. The values that affect the efficiency and
Grujičić Rade   +5 more
doaj   +1 more source

Research on a PMSM control strategy for electric vehicles

open access: yesAdvances in Mechanical Engineering, 2021
This paper proposes a novel state estimation based permanent magnet synchronous motor (PMSM) control method for electric vehicle (EV) driving. Firstly, a state feedback decoupling control with disturbance feed-forward (SFDCDF) is described.
Guangliang Liao, Wei Zhang, Chuan Cai
doaj   +1 more source

Eccentric overload differences between loads and training variables on flywheel training

open access: yesBiology of Sport, 2023
There is considerable debate about the existence of a real eccentric overload in flywheel exercises. This study aimed to analyse the differences in concentric: eccentric mechanical output ratios between different loads and variables in the flywheel squat
Alejandro Muñoz-López   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy