Results 211 to 220 of about 574,724 (266)

SPG4 and Dementia: Expanding the Clinical Spectrum

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Hereditary spastic paraplegia (HSP) is a group of disorders characterized by progressive spasticity and lower limb weakness, with mutations in SPG4/SPAST being the most common cause. Detailed studies and clinical and molecular comparisons across different populations are missing.
Emanuele Panza   +19 more
wiley   +1 more source

Baseline Findings from Dual-Phase Amyloid PET Study in Newly Diagnosed Multiple Sclerosis: Exploring Its Potential as a Biomarker of Myelination and Neurodegeneration. [PDF]

open access: yesJ Pers Med
Barrios-López JM   +12 more
europepmc   +1 more source

Dual optimality of the phase-only filter

Optics Letters, 1988
Horner and Gianino1 suggested a phase-only filter of unit modulus as a correlation filter for pattern recognition. This filter consists of the phase of the classical matched filter and Is commonly referred to as “the” phase-only filter (POF). The POF has the potential of 100% light throughput efficiency, and it has been demonstrated to yield sharp ...
F M, Dickey, L A, Romero
openaire   +2 more sources

Dual-phase holograms: improved design

Applied Optics, 1987
An analysis of dual-phase holograms is presented which concentrates on the effects of phase quantization on hologram design. Two different quantization schemes are investigated and used in conjunction with an iterative design algorithm to reduce quantization error.
J N, Mait, K H, Brenner
openaire   +2 more sources

Phase unwrapping method combining dual-frequency heterodyne with dual complementary phase encoding

Optical Engineering, 2021
Phase encoding and phase-shift profilometry are two commonly used 3D measurement techniques. However, the acquired phases in the techniques are subject to jump errors due to phase ambiguity and phase errors caused by multiple heterodyne. The phase-shifting profilometry also makes the selection of fringe period difficult.
Limei Song   +5 more
openaire   +1 more source

Dual-Phase Steels

1990
Abstract Dual-phase steels are a new class of high-strength low alloy (HSLA) steels characterized by a microstructure consisting of about 20% hard martensite particles dispersed in a soft ductile ferrite matrix. In addition to high tensile strength, in the range of 550 MPa (80 ksi), dual-phase steels exhibit continuous yielding ...
openaire   +1 more source

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