Articles with "phase shift" as a keyword



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Functional assessment of moisture influenced cadaveric tympanic membrane using phase shift-resolved optical Doppler vibrography.

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Published in 2019 at "Journal of biophotonics"

DOI: 10.1002/jbio.201900202

Abstract: An elevated relative moisture in the external ear canal and middle ear cavity may predispose to chronic otorrhea and related infections along with abnormal tympanic membrane (TM) vibration patterns. Therefore, phase shift-resolved optical Doppler vibrography… read more here.

Keywords: moisture; phase shift; resolved optical; tympanic membrane ... See more keywords
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Earth Tide Analysis Specifics in Case of Unstable Aquifer Regime

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Published in 2017 at "Pure and Applied Geophysics"

DOI: 10.1007/s00024-017-1585-z

Abstract: We consider the main factors that affect underground water flow including aquifer supply, collector state, and distant earthquakes seismic waves’ passage. In geodynamically stable conditions underground inflow change can significantly distort hydrogeological response to Earth… read more here.

Keywords: phase shift; phase; tide analysis; earth tide ... See more keywords
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Perturbation-based prediction of vibration phase shift along fluid-conveying pipes due to Coriolis forces, nonuniformity, and nonlinearity

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Published in 2019 at "Nonlinear Dynamics"

DOI: 10.1007/s11071-019-04934-6

Abstract: Flexural vibrations of a fluid-conveying pipe are investigated theoretically, with special consideration to the spatial shift in vibration phase caused by fluid flow and various imperfections. The latter includes small nonuniformity or asymmetry in stiffness,… read more here.

Keywords: fluid conveying; shift; vibration phase; phase shift ... See more keywords
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Controllable Phase shift of optical soliton through nonlinear tunneling in a dual mode optical fiber

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Published in 2021 at "Optik"

DOI: 10.1016/j.ijleo.2021.167094

Abstract: Abstract In this proposed work, controllable phase shift of ultrashort optical soliton through nonlinear tunneling is realized for coupled cubic–quintic nonlinear Schrodinger equation with variable coefficients which can be used to describe the soliton transmission… read more here.

Keywords: soliton; optical soliton; soliton nonlinear; phase shift ... See more keywords
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Direct microRNA Sequencing Using Nanopore-Induced Phase-Shift Sequencing

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Published in 2020 at "iScience"

DOI: 10.1016/j.isci.2020.100916

Abstract: Summary MicroRNAs (miRNAs) are a class of short non-coding RNAs that function in RNA silencing and post-transcriptional gene regulation. However, direct characterization of miRNA is challenging due to its unique properties such as its low… read more here.

Keywords: phase shift; nanopore induced; induced phase; shift sequencing ... See more keywords
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Influence of temperature on phase shift angle and admittance of moistened composite of cellulose and insulating oil

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Published in 2021 at "Measurement"

DOI: 10.1016/j.measurement.2021.110041

Abstract: Abstract This paper describes precise tests of frequency–temperature relations of the phase shift angle and admittance of a reference sample of composite of cellulose and insulating oil with a moisture content of (5.0 ± 0.20)%… read more here.

Keywords: angle admittance; temperature; shift angle; phase shift ... See more keywords
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Pneumococcal capsular phase shift is associated with invasion into cell-to-cell junctions and is inhibited by macrolides.

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Published in 2021 at "Microbial pathogenesis"

DOI: 10.1016/j.micpath.2021.104787

Abstract: Streptococcus pneumoniae frequently colonizes the human nasopharynx beginning in the early childhood. Pneumococci exhibit a spontaneous and reversible phase shift between opaque and transparent allowing them to adapt to different environments. This is the first… read more here.

Keywords: invasion; phase shift; cell; pneumococcal phase ... See more keywords
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Broadband and high efficiency all-dielectric metasurfaces for wavefront steering with easily obtained phase shift

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Published in 2017 at "Optics Communications"

DOI: 10.1016/j.optcom.2017.07.083

Abstract: Abstract All-dielectric metasurfaces for wavefront deflecting and optical vortex generating with broadband and high efficiency are demonstrated. The unit cell of the metasurfaces is optimized to function as a half wave-plate with high polarization conversion… read more here.

Keywords: phase shift; phase; broadband high; high efficiency ... See more keywords
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An accurate phase shift extraction algorithm for phase shifting interferometry

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Published in 2018 at "Optics Communications"

DOI: 10.1016/j.optcom.2018.08.005

Abstract: Abstract The accuracy of phase shift extraction has a significant influence on measurement results in surface micro-topography interferometry. Phase shifting errors are mainly caused by nonlinearity of the employed phase shifter, environmental turbulence, camera imperfection… read more here.

Keywords: phase shift; phase; shift extraction; phase shifting ... See more keywords
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A compact real-time high-speed high-resolution vibrometer, surface profiler and dynamic focus tracker using three wavelengths parallel phase-shift interferometry

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Published in 2018 at "Optics and Lasers in Engineering"

DOI: 10.1016/j.optlaseng.2018.04.007

Abstract: Abstract The combination of simultaneous parallel phase shift interferometry with three wavelengths illumination and three spectral quad detectors integrated into a compact optical system is presented, achieving a real time, high speed, sub-nm axial resolution… read more here.

Keywords: three wavelengths; real time; phase shift; time high ... See more keywords
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Improved forward model for quantitative pulse-echo speed-of-sound imaging.

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Published in 2020 at "Ultrasonics"

DOI: 10.1016/j.ultras.2020.106168

Abstract: Computed ultrasound tomography in echo mode (CUTE) allows determining the spatial distribution of speed-of-sound (SoS) inside tissue using handheld pulse-echo ultrasound (US). This technique is based on measuring the changing phase of beamformed echoes obtained… read more here.

Keywords: speed sound; forward model; pulse echo; phase shift ... See more keywords