Results 111 to 120 of about 11,999,664 (286)
Germanium‐Based Mid‐Infrared Integrated Photonics
Laser &Photonics Reviews, EarlyView.The mid‐infrared (mid‐IR) spectral range is a part of the electromagnetic spectrum in which most of the molecules have vibrational and rotational resonances. Photonics integration in this wavelength range have thus seen a burst of interest in the recent years, mainly driven by applications related with the detection of chemical and biological ...
Delphine Marris‐Morini +6 more
wiley +1 more source
Mean sinc sums and scale invariant scattering
Scattering from a scale invariant potential in two spatial dimensions leads to a class of novel identities involving the sinc ...
Curtright, Thomas
core +1 more source
Sinc approximation of algebraically decaying functions
, 2018 An extension of sinc interpolation on $\mathbb{R}$ to the class of algebraically decaying functions is developed in the paper. Similarly to the classical sinc interpolation we establish two types of error estimates. First covers a wider class of functions with the algebraic order of decay on $\mathbb{R}$.
openaire +2 more sources
Consistent Quadratic Phase Formation in 3D Fast Spin Echo Using Frequency‐Modulated RF Pulses
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Frequency‐modulated (FM) RF pulses achieve broadband excitation with low RF peak power, which is required in MRI with inhomogeneous magnetic fields. However, the quadratic phase generated with FM pulses makes it difficult to use them in fast spin echo (FSE), because even and odd refocused echoes have different spatial phase profiles ...
Naoharu Kobayashi, Michael Garwood
wiley +1 more source
Summary of Sinc Numerical Methods
, 2007 Sinc approximation methods excel for problems whose solutions may have singularities, or infinite domains, or boundary layers. This article summarizes results obtained to date, on Sinc numerical methods of computation.
Frank Stenger
core
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Deleterious effects from concomitant gradients are amplified at lower field strengths and stronger gradients. We aimed to show the signal errors caused by concomitant gradients across a wide range of hardware configurations and propose corrections that can be applied during experimental design and analysis.
Viktor Olsson +6 more
wiley +1 more source
The Perturbed Dual Risk Model with Constant Interest and a Threshold Dividend Strategy
Abstract and Applied Analysis, 2013 We consider the perturbed dual risk model with constant interest and a threshold dividend strategy. Firstly, we investigate the moment-generation function of the present value of total dividends until ruin.
Fanzi Zeng, Jisheng Xu
doaj +1 more source
A sinc function analogue of chebfun
, 2016 Chebfun is an established software system for computing with functions of a real variable, but its capabilities for handling functions with singularities are limited. Here an analogous system is described based on sinc function expansions instead of Chebyshev series.
Richardson, M, Trefethen, L
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Transverse Relaxation Time Constant of Cystathionine in Human Glioma at 3 T
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Cystathionine (Cth) has emerged as a promising biomarker for identifying 1p/19q codeleted gliomas. However, little is known about the T2 relaxation time constant of Cth in gliomas. The aim of this study was to measure the T2 of Cth in vivo in glioma and compare it to the T2s of other metabolites at 3 T.
Dinesh K. Deelchand +6 more
wiley +1 more source
Results in Applied MathematicsFor solving the KdV equation, a novel numerical method with high order accuracy in both space and time is proposed. In the spatial direction, Sinc collocation method, which has the property of exponential convergence, is adopted.
Cheng Chen, Wenting Shao
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