Results 11 to 20 of about 1,899 (244)

Quantification and reduction of ghosting artifacts in interleaved echo‐planar imaging [PDF]

open access: yesMagnetic Resonance in Medicine, 1997
AbstractA mathematical analysis of ghosting artifacts often seen in interleaved echo‐planar images (EPI) is presented. These artifacts result from phase and amplitude discontinuities between lines of k‐space in the phase‐encoding direction, and timing misregistrations from system filter delays.
S B, Reeder   +3 more
openaire   +2 more sources

Fugitive Aesthetics

open access: yesThird Text, 2022
This article discusses four recently released refugee films: Dolce Fine Giornata, Atlantics, Island of the Hungry Ghosts, and Life Overtakes Me. It draws on a range of theoretical frames, including the work of Avery Gordon and Jacques Derrida on spectrality, in order to outline the original concept of ‘fugitive aesthetics’, the narrative and stylistic ...
Bruce Bennett, Katarzyna Marciniak
openaire   +2 more sources

Non-Line-of-Sight Target Detection Based on Dual-View Observation with Single-Channel UWB Radar

open access: yesRemote Sensing, 2022
Non-line-of-sight (NLOS) target detection utilizing multipath plays an important role in anti-terrorism, urban warfare, indoor rescue and intelligent driving.
Yiping Yang   +4 more
doaj   +1 more source

The color phi phenomenon: Not so special, after all?

open access: yesPLoS Computational Biology, 2021
We show how anomalous time reversal of stimuli and their associated responses can exist in very small connectionist models. These networks are built from dynamical toy model neurons which adhere to a minimal set of biologically plausible properties.
Lars Keuninckx, Axel Cleeremans
doaj   +1 more source

Sensitivity and resolution enhancement in the SERF experiment using perfect echo and by elimination of axial peaks and ghost couplings

open access: yesJournal of Magnetic Resonance Open, 2022
Due to its inherent insensitivity amongst the spectroscopic techniques, improvements in sensitivity and resolution are always demanding in NMR spectroscopy.
Surbhi Tiwari   +3 more
doaj   +1 more source

An Efficient Channel Imbalance Estimation Method Based on Subadditivity of Linear Normed Space of Sub-Band Spectrum for Azimuth Multichannel SAR

open access: yesRemote Sensing, 2023
Azimuth multichannel (AMC) technology is one of the mainstream technical approaches to realize high-resolution wide-swath (HRWS) imaging. It has been successfully applied to several synthetic aperture radar (SAR) satellites in orbit.
Zongxiang Xu   +6 more
doaj   +1 more source

Fragmentation de l’être. Mémoire et identité dans les mangas

open access: yesCaptures, 2019
Le développement de la relation entre la machine et l’individu trouve un écho fertile au sein des mangas. L’étude d’oeuvres emblématiques, comme Ghost in the Shell, Gunnm, Lain et les adaptations de Hiroshi Mori, permet de mettre en lumière leurs ...
Alexandra Aïn
doaj   +1 more source

Parade of ghosts: buildings & their echoes [PDF]

open access: yesTEXT, 2019
At the centre of this personal essay is my effort to understand the impact of buildings on literature, and the impact of literature on buildings. What happens when the built environment is drastically altered? How does memory mediate between what used to be there and what replaced it?
openaire   +1 more source

Lipid elimination with an echo‐shifting N/2‐ghost acquisition (LEENA) MRI [PDF]

open access: yesMagnetic Resonance in Medicine, 2014
PurposeThe Dixon techniques provide uniform water‐fat separation but require multiple image sets, which extend the overall acquisition time. Here, an alternative rapid single acquisition method, lipid elimination with an echo‐shifting N/2‐ghost acquisition (LEENA), was introduced.MethodsThe LEENA method utilized a fast imaging with steady‐state free ...
Lan, Lu   +5 more
openaire   +2 more sources

Massive mimetic cosmology

open access: yesPhysics Letters B, 2019
We study the first cosmological implications of the mimetic theory of massive gravity recently proposed by Chamseddine and Mukhanov. This is a novel theory of ghost-free massive gravity which additionally contains a mimetic dark matter component.
Adam R. Solomon   +2 more
doaj   +1 more source

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