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   Articles with "multifrequency" as a keyword



Tomoelastography of the prostate using multifrequency MR elastography and externally placed pressurized‐air drivers

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recommendations! Published in 2018 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.26769

Abstract: To demonstrate the feasibility of in vivo multifrequency magnetic resonance elastography (MRE) of the prostate using externally placed drivers. read more here.

Keywords: tomoelastography prostate; externally placed; elastography; prostate using ... See more keywords

Estimating alpine snow depth by combining multifrequency passive radiance observations with ensemble snowpack modeling

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recommendations! Published in 2019 at "Remote Sensing of Environment"

DOI: 10.1016/j.rse.2019.03.016

Abstract: Abstract This paper presents a physically-based snow depth retrieval algorithm adapted for deep mountainous snowpack and airborne multifrequency (10.7, 18.7, 37.0 and 89.0 GHz) passive microwave (PM) radiance observations from a single flight. The algorithm employs… read more here.

Keywords: radiance observations; snow depth; snowpack; multifrequency ... See more keywords

It's All About Contrast: Multifrequency Resonant and IR Methods in AFM

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recommendations! Published in 2020 at "Microscopy and Microanalysis"

DOI: 10.1017/s1431927620023909

Abstract: In the first part of this presentation we discuss a resonant, multifrequency method developed by Intermodulation Products AB (Stockholm) – vibrating the microcantilever (to which the tip is attached) at two tones near the fundamental… read more here.

Keywords: methods afm; multifrequency resonant; contrast multifrequency; resonant methods ... See more keywords

Development and Standardization of Modified Simultaneous Multifrequency Stimulus for Recording Ocular Vestibular-Evoked Myogenic Potential and Its Interaction with the Alternate Electrode Montages

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recommendations! Published in 2024 at "Journal of the American Academy of Audiology"

DOI: 10.1055/a-2353-2797

Abstract: Abstract Background  Simultaneous multifrequency (SiMFy) is a time-saving and reliable stimulus to determine the frequency tuning of ocular vestibular-evoked myogenic potential (oVEMP); however, the absence of 4000 Hz in SiMFy potentially makes it a less potent… read more here.

Keywords: stimulus; electrode montages; modified simfy; multifrequency ... See more keywords

Multifrequency Response of a Squeeze Film Damper with Incipient Air Ingestion

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recommendations! Published in 2025 at "Tribology Transactions"

DOI: 10.1080/10402004.2025.2514760

Abstract: Abstract Squeeze film dampers (SFDs) are essential in high-performance rotating machines, primarily to reduce vibration amplitudes at critical speeds and counteract destabilizing forces. A common issue in SFDs, especially with low supply pressures and non-tightly… read more here.

Keywords: air; multifrequency; squeeze; air ingestion ... See more keywords

Multifrequency Identification and Exploitation in Lamb Wave Inspection

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recommendations! Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2947711

Abstract: Lamb wave inspection provides a promising method to assess the structural health status. However, Lamb wave modes exhibit different characteristics which vary with frequency significantly. The best excitation frequency usually cannot be determined in specific… read more here.

Keywords: exploitation; wave inspection; frequency; method ... See more keywords

Multifrequency Polarimetric SAR Image Despeckling by Iterative Nonlocal Means Based on a Space-Frequency Information Joint Covariance Matrix

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recommendations! Published in 2019 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"

DOI: 10.1109/jstars.2018.2884194

Abstract: This paper presents an iterative nonlocal means (NLM) filtering method under the Bayesian framework to deal with the issue of multifrequency fully polarimetric synthetic aperture radar (PolSAR) image despeckling. Differing from most of the PolSAR… read more here.

Keywords: iterative nonlocal; nonlocal means; frequency; image ... See more keywords

Global Unsupervised Assessment of Multifrequency Vegetation Optical Depth Sensitivity to Vegetation Cover

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recommendations! Published in 2023 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"

DOI: 10.1109/jstars.2022.3226001

Abstract: Vegetation optical depth (VOD) has contributed to monitor vegetation dynamics and carbon stocks at different microwave frequencies. Nevertheless, there is a need to determine which are the appropriate frequencies to monitor different vegetation types. Also,… read more here.

Keywords: multifrequency; sensitivity; vegetation; optical depth ... See more keywords

Tensorization of Multifrequency PolSAR Data for Classification Using an Autoencoder Network

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recommendations! Published in 2018 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2018.2799875

Abstract: A novel tensorization framework is proposed, which utilizes the Kronecker product to combine multifrequency polarimetric synthetic aperture radar data in conjunction with an artificial neural network (ANN) for classification. The ANN comprises of two stages,… read more here.

Keywords: tensorization multifrequency; classification; network; autoencoder ... See more keywords

Optimized Wishart Network for an Efficient Classification of Multifrequency PolSAR Data

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recommendations! Published in 2018 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2018.2861081

Abstract: High-resolution wide-area images are required in the diverse field of research ranging from urban planning and disaster prediction to agriculture and geology. Sometimes the image is taken under harsh weather conditions or at night time.… read more here.

Keywords: optimized wishart; network; polsar; wishart network ... See more keywords

Multifrequency Analysis via LTSA and Its Application on Carbonate Reservoir Delineation

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recommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2022.3227170

Abstract: Multifrequency analysis is an effective tool for seismic data interpretation, such as fluvial channel characterization and sand bodies interpretation. Due to the broadband and nonstationary properties of seismic data, time–frequency (TF) transform is widely used… read more here.

Keywords: multifrequency; multifrequency analysis; analysis; carbonate reservoir ... See more keywords