scholarly journals Perceptual equivalence of the Liljencrants–Fant and linear-filter glottal flow models

2021 ◽  
Vol 150 (2) ◽  
pp. 1273-1285
Author(s):  
Olivier Perrotin ◽  
Lionel Feugère ◽  
Christophe d'Alessandro
Keyword(s):  
Linear Filter ◽  
Flow Models ◽  
Glottal Flow

Spectral analysis of glottal flow models

2004 ◽  
Vol 115 (5) ◽  
pp. 2609-2610
Author(s):  
Matthew E. Lee ◽  
Mark J. T. Smith
Keyword(s):  
Spectral Analysis ◽  
Flow Models ◽  
Glottal Flow

Experimental validation of quasi-one-dimensional and two-dimensional steady glottal flow models

2010 ◽  
Vol 48 (9) ◽  
pp. 903-910 ◽  
Author(s):  
Julien Cisonni ◽  
Annemie Van Hirtum ◽  
Xiao Yu Luo ◽  
Xavier Pelorson
Keyword(s):  
Experimental Validation ◽  
Two Dimensional ◽  
One Dimensional ◽  
Flow Models ◽  
Glottal Flow

Increasing the complexity of glottal flow models: in‐vitro validation for steady flow conditions

2008 ◽  
Vol 123 (5) ◽  
pp. 3577-3577 ◽  
Author(s):  
Julien Cisonni ◽  
Annemie Van Hirtum ◽  
Xiao Yu Luo ◽  
Xavier Pelorson
Keyword(s):  
Steady Flow ◽  
Flow Conditions ◽  
Flow Models ◽  
Glottal Flow

On the waveforms and spectra of glottal flow models

1999 ◽  
Vol 105 (2) ◽  
pp. 1304-1304 ◽  
Author(s):  
Boris Doval ◽  
Christophe R. d’Alessandro
Keyword(s):  
Flow Models ◽  
Glottal Flow

scholarly journals Glottal flow: models and interaction

1986 ◽  
Vol 14 (3-4) ◽  
pp. 393-399 ◽  
Author(s):  
Gunnar Fant
Keyword(s):  
Flow Models ◽  
Glottal Flow

Recent Progress and Plans in Computer-Controlled High Resolution Electron Microscopy

1990 ◽  
Vol 48 (1) ◽  
pp. 154-155
Author(s):  
W.J. de Ruijter ◽  
Peter Rez ◽  
David J. Smith
Keyword(s):  
Electron Microscopy ◽  
Digital Processing ◽  
High Resolution Electron Microscopy ◽  
Objective Lens ◽  
Linear Filter ◽  
Contrast Transfer Function ◽  
Image Displacement ◽  
Spatially Resolved ◽  
Wide Range ◽  
On Line

Digital computers are becoming widely recognized as standard accessories for electron microscopy. Due to instrumental innovations the emphasis in digital processing is shifting from off-line manipulation of electron micrographs to on-line image acquisition, analysis and microscope control. An on-line computer leads to better utilization of the instrument and, moreover, the flexibility of software control creates the possibility of a wide range of novel experiments, for example, based on temporal and spatially resolved acquisition of images or microdiffraction patterns. The instrumental resolution in electron microscopy is often restricted by a combination of specimen movement, radiation damage and improper microscope adjustment (where the settings of focus, objective lens stigmatism and especially beam alignment are most critical). We are investigating the possibility of proper microscope alignment based on computer induced tilt of the electron beam. Image details corresponding to specimen spacings larger than ∼20Å are produced mainly through amplitude contrast; an analysis based on geometric optics indicates that beam tilt causes a simple image displacement. Higher resolution detail is characterized by wave propagation through the optical system of the microscope and we find that beam tilt results in a dispersive image displacement, i.e. the displacement varies with spacing. This approach is valid for weak phase objects (such as amorphous thin films), where transfer is simply described by a linear filter (phase contrast transfer function) and for crystalline materials, where imaging is described in terms of dynamical scattering and non-linear imaging theory. In both cases beam tilt introduces image artefacts.

Avalanche Stratification - Experimental Tests of the “Metastable Wedge” and “Continuous Flow” Models

2000 ◽  
Vol 627 ◽  
Author(s):  
M. E. Swanson ◽  
M. Landreman ◽  
J. Michel ◽  
J. Kakalios
Keyword(s):  
Continuous Flow ◽  
Granular Media ◽  
Experimental Tests ◽  
Coarse Sand ◽  
Angle Of Repose ◽  
Flow Models ◽  
Maximum Angle ◽  
Stratification Effect ◽  
Upward Moving ◽  
Moving Layer

ABSTRACTWhen an initially homogeneous binary mixture of granular media such as fine and coarse sand is poured near the closed edge of a “quasi-two-dimensional” Hele-Shaw cell consisting of two vertical transparent plates held a narrow distance apart, the mixture spontaneously forms alternating segregated layers. Experimental measurements of this stratification effect are reported in order to determine which model, one which suggests that segregation only occurs when the granular material contained within a metastable heap between the critical and maximum angle of repose avalanches down the free surface, or one for which the segregation results from smaller particles becoming trapped in the top surface and being removed from the moving layer during continuous flow. The result reported here indicate that the Metastable Wedge model provides a natural explanation for the initial mixed zone which precedes the formation of the layers, while the Continuous Flow model explains the observed upward moving kink of segregated material for higher granular flux rates, and that both mechansims are necessary in order to understand the observed pairing of segregated layersfor intermediate flow rates and cell separations.

Flow models for twisted tube heat exchangers

2017 ◽  
Author(s):  
Boris V. Dzyubenko ◽  
Guenrikh A. Dreitser
Keyword(s):  
Heat Exchangers ◽  
Flow Models ◽  
Twisted Tube
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