Results 1 to 10 of about 9,537 (142)

Toxin production in a rare and genetically remote cluster of strains of the Bacillus cereus group [PDF]

open access: yesBMC Microbiology, 2007
Background Three enterotoxins are implicated in diarrhoeal food poisoning due to Bacillus cereus: Haemolysin BL (Hbl), Non-haemolytic enterotoxin (Nhe), and Cytotoxin K (CytK).
Granum Per   +4 more
doaj   +5 more sources

A Rattle Signal Denoising and Enhancing Method Based on Wavelet Packet Decomposition and Mathematical Morphology Filter for Vehicle [PDF]

open access: yesArchives of Acoustics, 2022
Buzz, squeak and rattle (BSR) noise has become apparent in vehicles due to the significant reductions in engine noise and road noise. The BSR often occurs in driving condition with many interference signals.
Linyuan Liang, Shuming Chen, Peiran Li
doaj   +1 more source

On magnetization deviations as the dominant cause for vibration harmonics in the spectrum of a PMSM drive [PDF]

open access: yesArchives of Electrical Engineering, 2021
Production deviations have a remarkable effect on the radiated sound of electrical machines, introducing additional signal components besides the fundamental field waves which significantly change and enrich the subjectively perceived sound ...
Markus Jaeger   +5 more
doaj   +1 more source

Testing Scenario Identification for Automated Vehicles Based on Deep Unsupervised Learning

open access: yesWorld Electric Vehicle Journal, 2023
Naturalistic driving data (NDD) are valuable for testing autonomous driving systems under various driving conditions. Automatically identifying scenes from high-dimensional and unlabeled NDD remains a challenging task.
Shuai Liu   +5 more
doaj   +1 more source

Acoustic Signature Analysis and Sound Source Localization for a Three-Phase AC Induction Motor

open access: yesEnergies, 2021
As part of the recent electrification of the transportation industry, internal combustion engines are being coupled with or replaced by electric motors.
Anand Krishnasarma   +4 more
doaj   +1 more source

Analysis and Design of Rear Twin Electric Powertrain Mounting System in E-Up Boost

open access: yesJournal of Mechanical Engineering, 2023
The paper focuses on analyzing and designing a mounting system for the modified rear powertrain of the E-up Boost. The initial section delves into the theoretical aspects, specifically examining the differing sources of vibration between internal ...
Bernáth Martin   +4 more
doaj   +1 more source

RETRACTED: Investigation of the Potential of Nebivolol Hydrochloride-Loaded Chitosomal Systems for Tissue Regeneration: In Vitro Characterization and In Vivo Assessment

open access: yesPharmaceutics, 2021
In this study, we evaluated the synergistic effect of nebivolol hydrochloride (NVH), a third-generation beta-blocker and NO donor drug, and chitosan on the tissue regeneration.
Noha Ibrahim Elsherif   +3 more
doaj   +1 more source

A Fast Method of Feature Extraction for Lowering Vehicle Pass-By Noise Based on Nonnegative Tucker3 Decomposition

open access: yesArchives of Acoustics, 2017
Usually, the judgement of one type fault of vehicle pass-by noise is difficult for engineers, especially when some significant features are disturbed by other interference noise, such as the squealing noise is almost simultaneous with the whistle in the ...
Haijun WANG   +5 more
doaj   +1 more source

Evaluation of Urban Traffic Accidents Based on Pedestrian Landing Injury Risks

open access: yesApplied Sciences, 2022
In comparison with vehicle-to-pedestrian collision, pedestrian-to-ground contact usually results in more unpredictable injuries (e.g., intracranial, neck, and abdominal injuries). Although there are many studies for different applications of such methods,
Liangliang Shi   +6 more
doaj   +1 more source

A Study of the Relationship between Dipole Noise Sources and the Flow Field Parameters around the Rearview Mirror of Passenger Cars

open access: yesApplied Sciences, 2023
When air flows through the mirrors, A-pillars, and other surfaces of a passenger car, airflow separation occurs to generate vorticity and generates aerodynamic noise.
Siwen Zhang   +7 more
doaj   +1 more source

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