Results 11 to 20 of about 144,853 (228)

Improved laminar specificity and sensitivity by combining SE and GE BOLD signals

open access: yesNeuroImage, 2022
The most widely used gradient-echo (GE) blood oxygenation level-dependent (BOLD) contrast has high sensitivity, but low specificity due to draining vein contributions, while spin-echo (SE) BOLD approach at ultra-high magnetic fields is highly specific to
SoHyun Han   +4 more
doaj   +1 more source

Prominent interior GE-filters of GE-algebras

open access: yesAIMS Mathematics, 2021
<abstract><p>The concept of a prominent interior GE-filter (of type 1 and type 2) is introduced, and their properties are investigated. The relationship between a prominent GE-filter and a prominent interior GE-filter and the relationship between an interior GE-filter and a prominent interior GE-filter are discussed.
Seok-Zun Song   +2 more
openaire   +2 more sources

Imploring interior GE-filters in GE-algebras

open access: yesAIMS Mathematics, 2021
<abstract><p>The concept of an imploring interior GE-filter is introduced, and their properties are investigated. The relationship between an interior GE-filter and an imploring interior GE-filter are discussed. Example to show that any interior GE-filter is not an imploring interior GE-filter is provided.
Sun Shin Ahn   +2 more
openaire   +2 more sources

On GE-algebras

open access: yesBulletin of the Section of Logic, 2021
Hilbert algebras are important tools for certain investigations in intuitionistic logic and other non-classical logic and as a generalization of Hilbert algebra a new algebraic structure, called a GE-algebra (generalized exchange algebra), is introduced ...
Ravikumar Bandaru   +2 more
doaj   +1 more source

Harmonization of PET image reconstruction parameters in simultaneous PET/MRI

open access: yesEJNMMI Physics, 2021
Objective Simultaneous PET/MRIs vary in their quantitative PET performance due to inherent differences in the physical systems and differences in the image reconstruction implementation.
Richard Laforest   +11 more
doaj   +1 more source

Spectral photosensitivity of diffused Ge-p–i–n photodiods

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2020
Laser rangefinders are widely used to measure distances for various civil and military purposes, as well as in rocket and space technology. The optical channel of such rangefinders uses high-speed p–i–n, or avalanche, photodiodes based on Si, Ge or ...
Artem Fedorenko
doaj   +1 more source

DERIVATIONS OF PRIME FILTER THEOREMS GENERATED BY VARIOUS $\cap $-STRUCTURES IN TRANSITIVE $GE$-ALGEBRAS [PDF]

open access: yesJournal of Algebraic Systems
Properties of prime filters and maximal filters of transitive GE-algebras are investigated. An element-wise characterization is derived for the smallest GE-filter containing a given set.
Sambasiva RAO Mukkamala
doaj   +1 more source

Nonvolatile, Reconfigurable and Narrowband Mid-Infrared Filter Based on Surface Lattice Resonance in Phase-Change Ge2Sb2Te5

open access: yesNanomaterials, 2020
We propose a nonvolatile, reconfigurable, and narrowband mid-infrared bandpass filter based on surface lattice resonance in phase-change material Ge2Sb2Te5.
Xingzhe Shi   +3 more
doaj   +1 more source

Standardisation of conventional and advanced iterative reconstruction methods for Gallium-68 multi-centre PET-CT trials

open access: yesEJNMMI Physics, 2021
Purpose To assess the applicability of the Fluorine-18 performance specifications defined by EANM Research Ltd (EARL), in Gallium-68 multi-centre PET-CT trials using conventional (ordered subset expectation maximisation, OSEM) and advanced iterative ...
Georgios Krokos   +3 more
doaj   +1 more source

Optimization of iterative image reconstruction in PET/CT imaging procedures: A Patient-centered approach [PDF]

open access: yesEgyptian Journal of Nuclear Medicine
Aim. The goal of this study is to optimize image quality metrics including Signal-to-Noise Ratio (SNR), Contrast-to-Noise Ratio (CNR), and Lesion-to-Background Ratio (LBR) while maintaining consistent Standardized Uptake Value (SUV(g/ml)) measures using ...
Mohamed Moustafa   +3 more
doaj   +1 more source

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