Articles with "noise reduction" as a keyword



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An image‐based approach for quantitative assessment of uniformity in particle distribution of noise reduction material

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Published in 2021 at "Microscopy Research and Technique"

DOI: 10.1002/jemt.23748

Abstract: Under the background of noise pollution caused by railway development, noise reduction material is worthy of in‐depth study. A uniform distribution of particles in the material has an important influence on sound absorption property. In… read more here.

Keywords: image; noise reduction; material; uniformity ... See more keywords
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Comparative Assessment of Noise Properties for Two Deep Learning CT Image Reconstruction Techniques and Filtered Back Projection.

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Published in 2022 at "Medical physics"

DOI: 10.1002/mp.15918

Abstract: BACKGROUND Two deep-learning image reconstruction (DLIR) techniques from two different CT vendors have recently been introduced into clinical practice. PURPOSE To characterize the noise properties of two DLIR techniques with different training methods, using a… read more here.

Keywords: noise reduction; noise; uniform region; non uniform ... See more keywords
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Facilitating standardized COVID-19 suspicion prediction based on computed tomography radiomics in a multi-demographic setting

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Published in 2022 at "European Radiology"

DOI: 10.1007/s00330-022-08730-6

Abstract: To develop an automatic COVID-19 Reporting and Data System (CO-RADS)–based classification in a multi-demographic setting. This multi-institutional review boards–approved retrospective study included 2720 chest CT scans (mean age, 58 years [range 18–100 years]) from Italian… read more here.

Keywords: demography; demographic setting; multi demographic; prediction ... See more keywords
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Phase noise reduction in LC cross coupled oscillators using sinusoidal tail current shaping technique

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Published in 2018 at "Analog Integrated Circuits and Signal Processing"

DOI: 10.1007/s10470-018-1181-x

Abstract: In this paper, using the concept of impulse sensitivity function (ISF) in Hajimiri’s phase noise model, a novel circuit method for phase noise reduction in LC cross coupled oscillators is proposed. Based on the proposed… read more here.

Keywords: cross coupled; phase noise; noise; noise reduction ... See more keywords
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Noise reduction in speech signals using adaptive independent component analysis (ICA) for hands free communication devices

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Published in 2019 at "International Journal of Speech Technology"

DOI: 10.1007/s10772-019-09595-9

Abstract: This paper aims to remove the noise presents in speech signals during communication in all hands-free devices like mobile phone, video conferencing, teleconferencing conferencing etc. The existing noise reduction algorithms like an adaptive filter, time-varying… read more here.

Keywords: communication; speech; noise reduction; ica ... See more keywords
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Blind signal separation with Noise Reduction for efficient speaker identification

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Published in 2021 at "International Journal of Speech Technology"

DOI: 10.1007/s10772-019-09641-6

Abstract: Generally, most blind signal separation algorithms deal with the separation problem in the absence of noise. The presence of noise degrades the performance of separated signals. This paper deals with the problem of blind separation… read more here.

Keywords: noise reduction; separation; noise; signal separation ... See more keywords
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Experimental and numerical investigations of the aerodynamic noise reduction of automotive side view mirrors

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Published in 2018 at "Journal of Hydrodynamics"

DOI: 10.1007/s42241-018-0070-1

Abstract: This paper studies the aeroacoustics of the side view mirrors by wind tunnel tests and numerical simulations. The mirror is placed on a table in the wind tunnel test. Based on the experiment results, a… read more here.

Keywords: side view; view mirrors; noise reduction;
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A finite element model to improve noise reduction based attenuation measurement of earmuffs in a directional sound field

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Published in 2017 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2016.12.003

Abstract: Abstract The real attenuation of hearing protection devices (HPD) can be assessed in the field using a method based on continuous field microphone-in-real-ear (F-MIRE) measurements. The two-microphone method provides an indicator called the measured noise… read more here.

Keywords: incidence; finite element; field; noise reduction ... See more keywords
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A novel regularization framework for transient noise reduction

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Published in 2018 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2017.07.020

Abstract: Abstract In this paper, we propose a novel method for estimating clean speech from a single channel transient noise corrupted speech. In the proposed method we assume that speech spectrogram is both sparse and has… read more here.

Keywords: novel regularization; transient noise; noise; noise reduction ... See more keywords
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On-site measurements for noise reduction through open windows of classrooms with different building dispositions

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Published in 2018 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2018.04.030

Abstract: Abstract In Korea, mitigation measures for traffic noise at schools are implemented during urban planning to meet the acceptable level (less than 65 dBA at a building facade) stipulated by the Environmental Impact Assessment (EIA). Meanwhile,… read more here.

Keywords: reduction open; building dispositions; open windows; noise reduction ... See more keywords

A modified time domain approach for calculation of noise reduction and acoustic impedance of intake duct system

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Published in 2020 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2020.107420

Abstract: Abstract Calculation of noise reduction and acoustic impedance of the duct system is needed for the one-port source model, which is widely used in the field of duct acoustics for extracting the source characteristics and… read more here.

Keywords: time; noise reduction; time domain; domain ... See more keywords