Results 51 to 60 of about 1,197,623 (286)

Load Insensitive, Low Voltage Quadrature Oscillator Using Single Active Element

open access: yesAdvances in Electrical and Electronic Engineering, 2017
In this paper, a load insensitive quadrature oscillator using single differential voltage dual-X second generation current conveyor operated at low voltage is proposed.
Jitendra Mohan, Bhartendu Chaturvedi
doaj   +1 more source

Planar quadrature RF transceiver design using common-mode differential-mode (CMDM) transmission line method for 7T MR imaging. [PDF]

open access: yesPLoS 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
doaj   +1 more source

Distinctive Shape Functions of Fractional Differential Quadrature for Solving Two-Dimensional Space Fractional Diffusion Problems

open access: yesFractal and Fractional, 2023
The aim of this study is to utilize a differential quadrature method with various kernels, such as Lagrange interpolation and discrete singular convolution, to tackle problems related to the Riesz fractional diffusion equation and the Riesz fractional ...
Abdelfattah Mustafa   +4 more
doaj   +1 more source

Cortical Thickness and White Matter Surface Morphology in Tourette Syndrome: A Cohort Study

open access: yesAnnals of Neurology, EarlyView.
Objective To examine cortical thickness and white matter surface morphology in a large sample of individuals with Tourette syndrome (TS) and neurotypical controls across the lifespan, and to assess associations with symptom severity, comorbidities, and medication use.
Sahar Delavari   +8 more
wiley   +1 more source

Lobatto Type Quadrature Rules for Functions with Bounded Derivative [PDF]

open access: yes, 1999
Inequalities are obtained for quadrature rules in terms of upper and lower bounds of the first derivative of the integrand. Bounds of Ostrowski type quadrature rules are obtained and the classical Iyengar inequality for the trapezoidal rule is recaptured
Cerone, Pietro, Dragomir, Sever S
core   +2 more sources

The application of the differential quadrature method based on a piecewise polynomial to the vibration analysis of geometrically nonlinear beams

open access: yesComputer Assisted Methods in Engineering and Science, 2022
The paper deals with the application of the differential quadrature method based on a piecewise polynomial to the nonlinear vibration analysis of beams. The initial-boundary-value problem is solved to study the computational stability of the method. The
Artur Krowiak
doaj  

Low Voltage Mixed-mode Multi Phase Oscillator Using Single FDCCII [PDF]

open access: yesElectronics, 2016
In this paper a new low voltage mixed-mode multiphase quadrature oscillator employing a single fully differential second generation current conveyor, two resistors and two grounded capacitors is proposed.
J. Mohan, B. Chaturvedi, S. Maheshwari
doaj   +1 more source

Asymptotic solvers for ordinary differential equations with multiple frequencies [PDF]

open access: yes, 2015
We construct asymptotic expansions for ordinary differential equations with highly oscillatory forcing terms, focussing on the case of multiple, non-commensurate frequencies.
Iserles, Arieh   +3 more
core   +2 more sources

Comparative Study of Gas and Liquid Flow in Packed Beds Using Phase‐Contrast MRI

open access: yesChemie Ingenieur Technik, EarlyView.
This work presents applications of phase‐contrast magnetic resonance imaging (MRI) to investigate fluid flow fields and temperature in packed beds. Comparison of ethane (C2H6) gas flow with that of water flow is done at similar flow conditions. The temperature of water is also measured using MRI.
Maitreyi Sangal   +4 more
wiley   +1 more source

WSPLK: A systematic approach to the thermodynamic characterization of light and heavy Mexican crude oil

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract A streamlined characterization framework (WSPLK) is presented for modelling complex reservoir fluids using cubic equations of state. The key methodological contribution is the introduction of a single global parameter ε directly into Pedersen's boiling‐point correlation, restoring pure‐component calibration and eliminating the need for ...
Angélica Merlo‐Robredo   +3 more
wiley   +1 more source

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