Results 11 to 20 of about 326,006 (283)
Planar quadrature RF transceiver design using common-mode differential-mode (CMDM) transmission line method for 7T MR imaging. [PDF]
PLoS ONE, 2013 The use of quadrature RF magnetic fields has been demonstrated to be an efficient method to reduce transmit power and to increase the signal-to-noise (SNR) in magnetic resonance (MR) imaging. The goal of this project was to develop a new method using the
Ye Li +4 more
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Quadrature Mismatch Shaping Techniques for Fully Differential Circuits [PDF]
2007 IEEE International Symposium on Circuits and Systems (ISCAS), 2007 Quadrature SigmaDelta ADCs require a feedback path for both the I and the Q part of the complex feedback signal. A complex DAC could give this feedback with near-perfect I/Q balance. Still, the mismatch between the unit elements of the complex DAC introduces mismatch noise that should be shaped out of the signal band with dynamic element-matching (DEM)
Reekmans, Stijn +2 more
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Quadrature Integration Techniques for Random Hyperbolic PDE Problems
Mathematics, 2021 In this paper, we consider random hyperbolic partial differential equation (PDE) problems following the mean square approach and Laplace transform technique. Randomness requires not only the computation of the approximating stochastic processes, but also
Rafael Company +2 more
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A Composite Algorithm for Numerical Solutions of Two-Dimensional Coupled Burgers’ Equations
Journal of Mathematics, 2021 In this study, a new composite algorithm with the help of the finite difference and the modified cubic trigonometric B-spline differential quadrature method is developed.
Vikas Kumar +2 more
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Thermal Science, 2023 The numerical solution of the 2-D time-fractional Sobolev equations is approximated using an efficient local differential quadrature method, in this paper. The time-fractional part of the model equations uses the Liouville-Caputo fractional derivative
B. Almutairi +4 more
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IEEE Access, 2023 A novel concept for single wavelength high spectral-efficient multi-dimensional optical transmission with geometric and probabilistic constellation shaping and bit mapping technique is presented in this study.
Jinwoo Park +3 more
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Vibration Analysis of Piezoelectric Composite Plate Resting on Nonlinear Elastic Foundations Using Sinc and Discrete Singular Convolution Differential Quadrature Techniques [PDF]
Mathematical Problems in Engineering, 2020 In this work, free vibration of the piezoelectric composite plate resting on nonlinear elastic foundations is examined. The three-dimensionality of elasticity theory and piezoelectricity is used to derive the governing equation of motion. By implementing two differential quadrature schemes and applying different boundary conditions, the problem is ...
Ola Ragb +3 more
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Sensors, 2021 A passive homodyne phase demodulation technique based on a linear-fitting trigonometric-identity-transformation differential cross-multiplication (LF-TIT-DCM) algorithm is proposed.
Wanjin Zhang +5 more
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Alexandria Engineering Journal, 2023 The pseudo-spectral method is used as a technique to employ the first derivative of the well-known Legendre polynomials (FDLs) as novel basis functions.
M. Abdelhakem, H. Moussa
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Buckling Analysis of Sandwich Timoshenko Nanobeams with AFG Core and Two Metal Face-Sheets [PDF]
Mechanics of Advanced Composite Structures, 2023 This paper intends to introduce a new and simple technique to precisely assess the axial instability of a shear deformable sandwich nanobeam. The section of the considered beam element is composed of two metal face layers and an axially functionally ...
Masoumeh Soltani
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