Results 71 to 80 of about 1,500,319 (282)

Study of Acoustic Parameters of Audible and Visual Warning Devices Used by the Police of the Czech Republic

Communications, 2012
In the article, the authors are concerned with acoustic parameters of audible and visual warning devices used by the Police of the Czech Republic. The objective of the article is, in context with the fundamental rules of sound and its propagation in ...
Svetla Fiserova, Martin Hrinko
doaj   +1 more source

Audible noise analysis of 750‐kV AC transmission line in high‐altitude area under different weather

IET Generation, Transmission & Distribution, 2023
In order to build UHV AC transmission lines at high altitudes, it is necessary to analyze the audible noise (AN) characteristics of the existing EHV transmission lines at high‐altitude areas to guide the design.
Yemao Zhang, Jilai Xu, Ni Li, Lijian Ding, Xiong Wu   +4 more
doaj   +1 more source

Lesion Location and Functional Connections Reveal Cognitive Impairment Networks in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive impairment, fatigue, and depression are common in multiple sclerosis (MS), potentially due to disruption of regional functional connectivity caused by white matter (WM) lesions. We explored whether WM lesions functionally connected to specific brain regions contribute to these MS‐related manifestations.
Alessandro Franceschini, Paolo Preziosa, Paola Valsasina, Damiano Mistri, Monica Margoni, Federica Esposito, Massimo Filippi, Maria A. Rocca   +7 more
wiley   +1 more source

Modeling random telegraph noise under switched bias conditions using cyclostationary RTS noise [PDF]

, 2003
In this paper, we present measurements and simulation of random telegraph signal (RTS) noise in n-channel MOSFETs under periodic large signal gate-source excitation (switched bias conditions).
Klumperink, Eric A.M., Nauta, Bram, Vandamme, L.K.J., Wel, Arnoud P. van der   +3 more
core   +3 more sources

Diffusion Tractography Biomarker for Epilepsy Severity in Children With Drug‐Resistant Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To develop a novel deep‐learning model of clinical DWI tractography that can accurately predict the general assessment of epilepsy severity (GASE) in pediatric drug‐resistant epilepsy (DRE) and test if it can screen diverse neurocognitive impairments identified through neuropsychological assessments.
Jeong‐Won Jeong, Min‐Hee Lee, Hiroshi Uda, Yoon Ho Hwang, Michael Behen, Aimee Luat, Csaba Juhász, Eishi Asano   +7 more
wiley   +1 more source

Noise Testing of the Conveyor Trough Sprocket and Surface Noise Reduction Performance Evaluation of the Cavity Structure in a Combine Harvester

Agriculture
This study investigates noise detection and damping-based noise mitigation strategies for cavity structures, with a specific focus on addressing noise issues in the conveyor trough of combine harvesters.
Jianpeng Jing, Hongyan Sun, Runzhi Liang, Shuren Chen, Zhong Tang, Xiaoying He, Yuxuan Chen   +6 more
doaj   +1 more source

An Algorithm for Detection of Electromagnetic Interference in High Frequency Radar Range-Doppler Images Caused by LEDs

IEEE Access, 2019
This paper focuses on the impacts that noise generated by the light emitting diodes (LED) have on high-frequency surface wave (HFSW) radars. Initially, the measurements of the electromagnetic interference caused by the LED lights were conducted in an ...
Nikola M. Tosic, Andreja Samcovic, Dejan Nikolic, Dejan Drajic, Nikola Lekic   +4 more
doaj   +1 more source

Noise characterization of an Optical Frequency Comb using Offline Cross-Correlation

, 2016
Using an offline cross-correlation technique, we have analyzed the noise behavior of a new type of optical frequency comb (OFC), which is carrier envelope offset (CEO) free by configuration, due to difference frequency generation.
Champenois, Caroline, Collombon, Mathieu, Ferrand, Didier, Guyomarc'h, Didier, Hagel, Gaëtan, Houssin, Marie, Khayatzadeh, Ramin, Knoop, Martina, Morizot, Olivier   +8 more
core   +2 more sources

Higher Amyloid and Tau Burden Is Associated With Faster Decline on a Digital Cognitive Test

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective A 2‐min digital clock‐drawing test (DCTclock) captures more granular features of the clock‐drawing process than the pencil‐and‐paper clock‐drawing test, revealing more subtle deficits at the preclinical stage of Alzheimer's disease (AD). A previous cross‐sectional study demonstrated that worse DCTclock performance was associated with
Jessie Fanglu Fu, Talia Robinson, Marina Rodriguez Alonso, Adela Francis Malave, Roos J. Jutten, Michael J. Properzi, Brian C. Healy, Jackson C. Thompson, Grace Del Carmen Montenegro, Emma Thibault, Dana Penney, Randall Davis, Reisa A. Sperling, Kathryn V. Papp, Keith A. Johnson, Julie C. Price, Dorene M. Rentz   +16 more
wiley   +1 more source

Measurements of Noise [PDF]

Nature, 1936
THOSE interested in noise measurement will be aware that a new unit of equivalent loudness, the British Standard Phon, has been introduced by the British Standards Institution (Glossary of Acoustical Terms and Definitions B.S. 661—1936). The standard of reference is a plane sound wave of 1,000 cycles per sec, heard alternately with the noise to be ...
B. G. CHURCHER, A. J. KING
openaire   +1 more source