Articles with "intensity ratio" as a keyword



Hypoperfusion Intensity Ratio Predicts Infarct Growth After Successful Thrombectomy for Distal Medium Vessel Occlusion

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Published in 2022 at "Clinical Neuroradiology"

DOI: 10.1007/s00062-022-01141-6

Abstract: This study evaluated whether quantitative measurement of collaterals by the hypoperfusion intensity ratio (HIR) on baseline computed tomography perfusion (CTP) correlated with infarct growth and clinical outcome after successful endovascular recanalization of acute ischemic stroke… read more here.

Keywords: growth successful; analysis; intensity ratio; growth ... See more keywords

Use of MRI signal intensity ratio to differentiate between autoimmune pancreatitis and pancreatic ductal adenocarcinoma.

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Published in 2021 at "Clinical radiology"

DOI: 10.1016/j.crad.2021.10.003

Abstract: AIM To evaluate the accuracy of the lesion-to-erector spinae signal intensity ratio (SIR) on magnetic resonance imaging (MRI) for distinguishing autoimmune pancreatitis (AIP) from pancreatic ductal adenocarcinoma (PDA). MATERIALS AND METHODS The MRI data of… read more here.

Keywords: intensity ratio; intensity; erector spinae; pancreatic ductal ... See more keywords

Fast Chemical Contrast by X-ray Fluorescence Intensity Ratio Detection.

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Published in 2023 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.3c00623

Abstract: We describe a protocol for efficient detection of the chemical state of an element based on X-ray emission (fluorescence) spectroscopy using a Bragg optics spectrometer. The ratio of intensities at two appropriately chosen X-ray emission… read more here.

Keywords: ray fluorescence; ray; intensity ratio; detection ... See more keywords

Sensitive Luminescence Thermometry through Excitation Intensity Ratio in Eu-Doped BaTiO3.

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Published in 2024 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.3c18301

Abstract: Optical ratiometric thermometry techniques have gained much attention in recent years due to their reliable and noncontact temperature sensing capability for industrial and biorelated applications. Herein, we exploited the temperature dependence of the absorption band… read more here.

Keywords: bto; thermometry; excitation intensity; intensity ratio ... See more keywords

The hypoperfusion intensity ratio associates with APOE gene polymorphism in acute ischemic stroke patients with large vessel occlusion

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Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-16237-5

Abstract: Determine whether APOE gene polymorphism is associated with hypoperfusion intensity ratio (HIR) in acute ischemic stroke (AIS) patients with large vessel occlusion (LVO). Continuously reviewed hospitalized LVO-AIS patients. According to whether the patients carried APOE… read more here.

Keywords: stroke; gene polymorphism; intensity ratio; hypoperfusion intensity ... See more keywords

Temperature and rhodamine B sensing based on fluorescence intensity ratio of Er3+ upconversion emissions

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Published in 2017 at "RSC Advances"

DOI: 10.1039/c7ra09977k

Abstract: In this paper, we report the temperature and rhodamine B (RhB)-concentration sensing behavior of Ag/ZnO/Er3+:YbMoO4 composite films based on the fluorescence intensity ratio (FIR) of two green upconversion (UC) emissions which are ascribed to the… read more here.

Keywords: upconversion emissions; intensity ratio; er3; fluorescence intensity ... See more keywords

Selective enhancement of upconversion luminescence for enhanced ratiometric sensing.

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Published in 2021 at "RSC advances"

DOI: 10.1039/d1ra01396c

Abstract: Lanthanide-doped upconversion nanoparticles (UCNPs) have attracted widespread interest in bioimaging and sensing due to their photostability, low excitation energy, and good tissue penetration. Plasmonic nanostructures, on the other hand, can enhance the luminescence of UCNPs… read more here.

Keywords: upconversion; intensity ratio; ratiometric sensing; luminescence ... See more keywords

Machine learning-aided line intensity ratio technique applied to deuterium plasmas

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Published in 2023 at "AIP Advances"

DOI: 10.1063/5.0147463

Abstract: It has been demonstrated that the electron density, ne, and temperature, Te, are successfully evaluated from He I line intensity ratios coupled with machine learning (ML). In this paper, the ML-aided line intensity ratio technique… read more here.

Keywords: intensity; line intensity; technique; intensity ratio ... See more keywords

On the Ar I 419.8 nm/751.5 nm (3p5/2p5) line intensity ratio for electric field measurement in dielectric barrier discharge in argon at atmospheric pressure

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Published in 2025 at "Plasma Sources Science and Technology"

DOI: 10.1088/1361-6595/adaa9b

Abstract: Ar I 419.8 nm/751.5 nm line intensity ratio is suggested as a measure of the electric field in atmospheric pressure dielectric barrier discharges (DBDs) in argon. Using the electron distribution function calculated from the Boltzmann equation, electron impact… read more here.

Keywords: electric field; line; intensity ratio; line intensity ... See more keywords

Barrier discharges in CO2 – optical emission spectra analysis and E/N determination from intensity ratio

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Published in 2024 at "Plasma Sources Science and Technology"

DOI: 10.1088/1361-6595/adc7d7

Abstract: Barrier discharges in CO2 are investigated using optical emission spectroscopy and electrical measurements, with the support of spatially one-dimensional fluid modelling. This study focuses on a sinusoidally driven atmospheric pressure Townsend discharge (APTD) and a… read more here.

Keywords: barrier discharges; optical emission; barrier; intensity ratio ... See more keywords
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Influence of intensity ratio of the two driving laser fields on the cutoff of the high-order harmonics

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Published in 2020 at "Laser Physics"

DOI: 10.1088/1555-6611/ab7be2

Abstract: We investigate the high-order harmonic generation (HHG) of the helium atom at the various intensity ratios of the counter-rotating two-color circularly polarized laser fields. The results show that the cutoff energy of the harmonic spectra… read more here.

Keywords: intensity ratio; intensity ratios; laser; intensity ... See more keywords