Results 21 to 30 of about 1,200,707 (123)

Radar matched filtering using the fractional fourier transform [PDF]

open access: yes, 2010
-A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine   +2 more
core   +4 more sources

Error Estimates on Approximating the Finite Fourier Transform of Complex-Valued Functions via a Pre-Grüss Inequality [PDF]

open access: yes, 2004
Some estimates for the error in approximating the Finite Fourier Transform in terms of exponential means via a pre-Grüss inequality for complex-valued functions are ...
Hanna, George T   +2 more
core   +6 more sources

Accelerations Recorded by Simple Inertial Measurement Units with Low Sampling Frequency Can Differentiate between Individuals with and without Knee Osteoarthritis: Implications for Remote Health Care

open access: yesSensors, 2023
Determining the presence and severity of knee osteoarthritis (OA) is a valuable application of inertial measurement units (IMUs) in the remote monitoring of patients.
Arash Ghaffari   +5 more
doaj   +1 more source

Revisiting the quantum harmonic oscillator via unilateral Fourier transforms [PDF]

open access: yesEuropean Journal of Physics, 2015
11 ...
Nogueira, Pedro H. F.   +1 more
openaire   +3 more sources

Petrogenesis of Chatoyant Green Nephrite from Serpentinite-Related Deposits, Ospinsk, Russia: Insights from Mineralogy and Geochemistry

open access: yesCrystals, 2023
Ospinsk is an area in Russia well-known for mining the highest quality green nephrite in the world. However, the chatoyant green nephrite found here has not been studied to date.
Weishi He   +4 more
doaj   +1 more source

Exploring the dynamics of white noise and spatial temporal variations on hearing loss due to mumps virus

open access: yesResults in Physics, 2023
The most frequent cause of acquired unilateral deafness in children, genetic disorder, or complexities at the time of birth, neural disorder due to any viral infection which results in loss of hearing across all auditory frequencies.
Kottakkaran Sooppy Nisar   +6 more
doaj   +1 more source

Applications of Fourier transform infrared spectroscopy [PDF]

open access: yes, 2012
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166This article summarizes the basic principles of Fourier Transform Infrared Spectroscopy, with examples of methodologies and applications to different field ...
Ferrer i Felis, Núria
core   +6 more sources

AI-Assisted Tumor Boundary Delineation via Targeted Ultrasmall Iron Oxide Nanoprobe for High-Contrast HER2-Positive Tumor Imaging. [PDF]

open access: yesAdv Sci (Weinh)
A novel targeted and pH‐responsive MRI contrast agent was integrated with a 3D nnU‐Net deep learning framework to enable accurate delineation of tumor boundary morphology in HER2‐positive breast cancer imaging. ABSTRACT Breast cancer continues to be a leading cause of cancer‐related mortality in women globally, where precise diagnosis and clear tumor ...
Zheng J   +7 more
europepmc   +2 more sources

Deep Brain Stimulation Increases Seizure Threshold by Altering REM Sleep and Delta Powers During NREM Sleep

open access: yesFrontiers in Neurology, 2020
We previously demonstrated that seizure occurrences at different zeitgeber times alter sleep and circadian rhythm differently. On the other hand, the synchronized delta wave of electroencephalogram (EEG) during non-rapid eye movement (NREM) sleep ...
Hsin-Tzu Tseng   +6 more
doaj   +1 more source

Sectional Model Wind Tunnel Test and Research on the Wind-Induced Vibration Response of a Curved Beam Unilateral Stayed Bridge

open access: yesBuildings, 2022
The linear curve distribution of the beam and the asymmetrical layout of the stay cables may have beneficial or adverse influences on cable-stayed bridges.
Shuang Zhao   +6 more
doaj   +1 more source

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