Results 31 to 40 of about 291,572 (292)

Phase distortion-free paramagnetic NMR spectra

open access: yesJournal of Magnetic Resonance Open, 2021
The NMR spectra of paramagnetic substances can feature shifts over thousands of ppm. In high magnetic field instruments, this corresponds to extreme offsets, which make it challenging or impossible to achieve uniform excitation without phase distortion.
openaire   +4 more sources

Phase Distortion in Electroacoustic Systems [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1941
In the course of an investigation of phase distortion in electroacoustical systems the phase shift vs. frequency characteristic of a standard miniature condenser transmitter was measured by application of the principle of reciprocity. Measurements were made in a closed cavity and in free space.
openaire   +1 more source

Algorithm of the Radar Imaging by Using the Wideband Signals with the Distorted Signal Phases

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
The problem of restoring an image by its Fourier transform is considered when the Fourier transform contains phase distortions. The nature of these distortions and their values are arbitrary.
Zhulina Yulia V
doaj   +1 more source

Effect of Scatterering on Coherent Anti-Stokes Raman Scattering (CARS) signals [PDF]

open access: yes, 2017
We develop a computational framework to examine the factors responsible for scattering-induced distortions of coherent anti-Stokes Raman scattering (CARS) signals in turbid samples. We apply the Huygens-Fresnel Wave-based Electric Field Superposition (HF-
de Vito, Giuseppe   +4 more
core   +2 more sources

Magnetic and orbital order in overdoped bilayer manganites [PDF]

open access: yes, 2003
The magnetic and orbital orders for the bilayer manganites in the doping region $0.5 < x
  +9 more
core   +1 more source

Pilot-Aided Sequential Monte Carlo Estimation of Phase Distortions and Transmitted Symbols in Multicarrier Systems

open access: yesJournal of Electrical and Computer Engineering, 2010
We address the challenging problem of the joint estimation of transmitted symbols and phase distortions in standardized multicarrier systems, including pilot or virtual subcarriers. These subcarriers create time correlation on the useful transmitted OFDM
François Septier   +3 more
doaj   +1 more source

Pressure-induced reversal of Peierls-like distortions elicits the polyamorphic transition in GeTe and GeSe

open access: yesNature Communications, 2023
While polymorphism is prevalent in crystalline solids, polyamorphism draws increasing interest in various types of amorphous solids. Recent studies suggested that supercooling of liquid phase-change materials (PCMs) induces Peierls-like distortions in ...
Tomoki Fujita   +18 more
doaj   +1 more source

Analysis of Transmission Loss and Boresight Error of a Curved FSS Radome-Enclosed Antenna

open access: yesIEEE Access, 2021
In this paper, we numerically study a curved frequency selective surface (FSS) radome, which encloses a waveguide slot array antenna operating at 10GHz, using the ray tracing technique and flat model.
Hokeun Shin   +3 more
doaj   +1 more source

Compression of Ultrashort Laser Pulses via Gated Multiphoton Intrapulse Interference Phase Scans

open access: yes, 2014
Delivering femtosecond laser light in the focal plane of a high numerical aperture microscope objective is still a challenge, despite significant developments in the generation of ultrashort pulses.
Ciesielski, Richard   +4 more
core   +1 more source

Uniaxial Strain Induced Topological Phase Transition in Bismuth-Tellurohalide-Graphene Heterostructures [PDF]

open access: yes, 2019
We explore the electronic structure and topological phase diagram of heterostructures formed of graphene and ternary bismuth tellurohalide layers. We show that mechanical strain inherently present in fabricated samples could induce a topological phase ...
Koltai, János   +3 more
core   +2 more sources

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