Results 21 to 30 of about 2,943,799 (310)

Core versus Surface Sensors for Reinforced Concrete Structures: A Comparison of Fiber-Optic Strain Sensing to Conventional Instrumentation

open access: yesSensors, 2023
High-resolution distributed reinforcement strain measurements can provide invaluable information for developing and evaluating numerical and analytical models of reinforced concrete structures.
Ryan Hoult   +2 more
doaj   +1 more source

Fresnel incoherent correlation holography with single camera shot

open access: yesOpto-Electronic Advances, 2020
Fresnel incoherent correlation holography (FINCH) is a self-interference based super-resolution three-dimensional imaging technique. FINCH in inline configuration requires an active phase modulator to record at least three phase-shifted camera shots to ...
Vijayakumar Anand   +6 more
doaj   +1 more source

Multipion correlations induced by isospin conservation of coherent emission

open access: yesPhysics Letters B, 2016
Recent measurements have revealed a significant suppression of multipion Bose–Einstein correlations in heavy-ion collisions at the LHC. The suppression may be explained by postulating coherent pion emission.
Dhevan Gangadharan
doaj   +1 more source

Intraframe motion correction for raster-scanned adaptive optics images using strip-based cross-correlation lag biases. [PDF]

open access: yesPLoS ONE, 2018
In retinal raster imaging modalities, fixational eye movements manifest as image warp, where the relative positions of the beam and retina change during the acquisition of single frames. To remove warp artifacts, strip-based registration methods-in which
Mehdi Azimipour   +5 more
doaj   +1 more source

A Compact Multi-Distance DCS and Time Domain NIRS Hybrid System for Hemodynamic and Metabolic Measurements

open access: yesSensors, 2021
In this work, we present a new multi-distance diffuse correlation spectroscopy (DCS) device integrated with a compact state-of-the-art time domain near infrared spectroscopy (TD-NIRS) device.
Caterina Amendola   +6 more
doaj   +1 more source

Architecture-Level Event-Oriented Frontend for Heterogeneous Sensor Inference in Photonic Stochastic Systems

open access: yesSensors
Heterogeneous sensor systems generate measurements in incompatible physical units, which complicates their direct integration with photonic stochastic processors.
Oleg Angelsky   +6 more
doaj   +1 more source

Exercise Capacity, Physical Activity, Fatigue, and Neurocognitive Function in Adult Survivors of Childhood Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess   +5 more
wiley   +1 more source

Image sharpening metrics and search strategies for indirect adaptive optics [PDF]

open access: yes, 2000
Adaptive optics is concerned with the correction of turbulence induced aberrations and mis-alignments in optical systems. It is an expensive and complicated technology which has been developed for astronomy and defence applications.
Doble, N., Doble, Nathan
core  

Visualization and morphometrics of changes in cervical biotissues based on normalized spectral indices

open access: yesБіофізичний вісник
Background: Modern visual diagnostics of precancerous and malignant lesions of the cervix requires increasing objectivity and accuracy through the use of physically based optical-spectral methods.
Olexandr Roslyakov   +2 more
doaj   +1 more source

Realizing split-pulse x-ray photon correlation spectroscopy to measure ultrafast dynamics in complex matter

open access: yesPhysical Review Research, 2020
Split-pulse x-ray photon correlation spectroscopy has been proposed as one of the unique capabilities made possible with x-ray free electron lasers. It enables characterization of atomic-scale structural dynamics that dictates the macroscopic properties ...
Yanwen Sun   +7 more
doaj   +1 more source

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