Results 81 to 90 of about 1,768,391 (280)

Ultra‐High Frequency Ultrasound Imaging and Quantification of Microvascular Flow in Xenograft Renal Cell Carcinoma in an Avian Chorioallantoic Membrane Model

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Patient‐derived xenograft (PDX) tumor models initiated in avian chorioallantoic membranes (CAM) are under investigation to evaluate the effectiveness of therapeutic options with the objective of personalizing treatments. CAM PDXs paired with ultra‐high frequency ultrasound (UHFUS) imaging could potentially constitute prospective high throughput assays ...
Sara Mar   +5 more
wiley   +1 more source

A Standardized Technique for Ultrasound–MRI Fusion Imaging of the Carotid Artery for Vascular Assessment

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Purpose To describe a reproducible ultrasound–magnetic resonance imaging (MRI) fusion imaging technique developed for quantitative assessment of carotid wall strain and plaque morphology. Methods MRI volumes (Oblique T2 Cube) were imported into the Sequoia ultrasound system equipped with an electromagnetic tracking module.
Maxwell J. Kiernan   +10 more
wiley   +1 more source

Differential Quadrature Method for solving the linear and nonlinear Klein - Gordon Equation

open access: yesمجلة علوم ذي قار, 2019
In this paper, numerical solution of Klein –Gordon equation is obtained by using differential quadrature method (DQM).This method is demonstrated by several examples.
Ahmed J. Hussein
doaj  

Convergence of the Quadrature-Differences Method for Singular Integro-Differential Equations on the Interval

open access: yesMathematics, 2014
In this paper, we propose and justify the quadrature-differences method for the full linear singular integro-differential equations with the Cauchy kernel on the interval (–1,1). We consider equations of zero, positive and negative indices.
Alexander Fedotov
doaj   +1 more source

Inverse differential quadrature method: mathematical formulation and error analysis. [PDF]

open access: yesProc Math Phys Eng Sci, 2021
Ojo SO, Trinh LC, Khalid HM, Weaver PM.
europepmc   +1 more source

Quadrature Methods for Stiff Ordinary Differential Systems [PDF]

open access: yesMathematics of Computation, 1981
The quadrature methods are based upon a substitution of an explicit A -stable first approximation into a generalized convolution formula. They are A -stable, explicit, and of arbitrarily high order. The generalized convolution formula is derived and its
openaire   +2 more sources

Characterization and Repetition Rate Locking of a 1 GHz Erbium‐Doped ZBLAN Waveguide‐Chip Comb Laser

open access: yesLaser &Photonics Reviews, EarlyView.
A compact, erbium‐doped ZBLAN waveguide chip mode‐locked laser that self‐starts, delivers stable ultrashort pulses, and repetition rate locked to a 1 GHz radio‐frequency reference. The laser produces near transform‐limited 324 fs pulses and 12 nm bandwidth with low noise and long‐term stability, with potential applications in optical frequency ...
Wen Qi Zhang   +4 more
wiley   +1 more source

A note on a family of quadrature formulas and some applications [PDF]

open access: yesOpuscula Mathematica, 2008
In this paper a construction of a one-parameter family of quadrature formulas is presented. This family contains the classical quadrature formulas: trapezoidal rule, midpoint rule and two-point Gauss rule.
Bogusław Bożek   +2 more
doaj  

Analysis of Vibrating Timoshenko Beams Using the Method of Differential Quadrature

open access: yesShock and Vibration, 1993
The main advantages of the differential quadrature method are its inherent conceptual simplicity and the fact that easily programmable algorithmic expressions are obtained.
P.A.A. Laura, R.H. Gutierrez
doaj   +1 more source

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