Results 31 to 40 of about 1,494,033 (370)

NOISE REDUCTION IN ACOUSTIC DISDROMETRY

8th European Conference on Noise Control 2009, 2023
This paper reports progress on the development of a novel rain disdrometer and the methods of noise reduction. The proposed instrument will measure the raindrop size distribution using the sound generated by raindrops landing in a tank of water. When an incident hydrometeor impacts on the surface of a liquid, two processes create an acoustic signal ...
Winder, Phil, Postema, Michiel, Paulson, Kevin   +2 more
openaire   +7 more sources

Treatment planning with a 2.5 MV photon beam for radiation therapy

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi, Chris Hayes, Louise Belshaw, Mark Grattan, Rao Khan, James L. Gräfe   +5 more
wiley   +1 more source

Low velocity impact response and post impact compression behaviour of ES^TM-fabric/3266 composites

Cailiao gongcheng, 2020
A novel kind of lattice-distributed ESTM-fabrics (ES-L) and random-distributed ESTM-fabrics (ES-R) were developed by using polyethersulfone (PES) and U3160 according to ex-situ toughening technology.
DONG Hui-min, YAN Li, AN Xue-feng, QIAN Huang-hai, SU Zheng-tao, YI Xiao-su   +5 more
doaj   +1 more source

Molecular Filters for Noise Reduction [PDF]

Biophysical Journal, 2018
Living systems are inherently stochastic and operate in a noisy environment, yet despite all these uncertainties, they perform their functions in a surprisingly reliable way. The biochemical mechanisms used by natural systems to tolerate and control noise are still not fully understood, and this issue also limits our capacity to engineer reliable ...
Laurenti, L, Kwiatkowska, M, Csikász-Nagy, A, Cardelli, L   +3 more
openaire   +5 more sources

Vector casting for noise reduction [PDF]

Journal of Raman Spectroscopy, 2020
AbstractWe report a new method for the reduction of noise from spectra. This method is based on casting vectors from one data point to the following data points of the noisy spectrum. The noise‐reduced spectrum is computed from the casted vectors within a margin that is identified by an envelope‐finder algorithm.
Medhanie Tesfay Gebrekidan, Medhanie Tesfay Gebrekidan, Andreas Braeuer, Christian Knipfer, Christian Knipfer   +4 more
openaire   +3 more sources

Impact of flexible noise control (FNC) image processing parameters on portable chest radiography

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract There is a lack of understanding in the performance of flexible noise control (FNC) processing, which is used in digital radiography on a scanner vendor and has four parameters each involving multiple options. The aim of this study was to investigate the impact of FNC on portable chest imaging. An anthropomorphic chest phantom was imaged using
Krystal M. Kirby, Liqiang Ren, Timothy R. Daly, Yasmeen K. Tandon, Brian J. Bartholmai, Beth A. Schueler, Zaiyang Long   +6 more
wiley   +1 more source

Effect of different noise reduction techniques and template matching parameters on markerless tumor tracking using dual‐energy imaging

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To evaluate the impact of various noise reduction algorithms and template matching parameters on the accuracy of markerless tumor tracking (MTT) using dual‐energy (DE) imaging. Methods A Varian TrueBeam linear accelerator was used to acquire a series of alternating 60 and 120 kVp images (over a 180° arc) using fast kV switching, on ...
Mandeep Kaur, Peter Wagstaff, Hassan Mostafavi, Mathias Lehmann, Daniel Morf, Liangjia Zhu, Hyejoo Kang, Michal Walczak, Matthew M. Harkenrider, John C. Roeske   +9 more
wiley   +1 more source

Digital radiography image quality evaluation using various phantoms and software

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas, Shady AlKhazzam, Virginia Tsapaki, Huda AlNaemi, Mohammed Hassan Kharita   +4 more
wiley   +1 more source

Research and Application Progress of Silicone Rubber Materials in Aviation

Journal of Aeronautical Materials, 2016
The research progress of heat resistance, cold resistance, electrical conductivity and damping properties of aviation silicone rubber were reviewed in this article.
HUANG Yanhua, SHI Yang, XUE Lei, GENG Xinling, SU Zhengtao, WANG Jinghe   +5 more
doaj   +1 more source

Phase structure and thermal properties of bismaleimide/polyethersulfone multi-phase resin system

Journal of Aeronautical Materials, 2019
The effect of micro phase morphology of bismaleimide (BMI)/polyethersulfone (PES) multi-phase system on the thermal properties was studied by SEM, DMA and TGA.
DONG Huimin, AN Xuefeng, YAN Li, QIAN Huanghai, CHENG Lijun, LIU Liping, LI Yueteng   +6 more
doaj   +1 more source