Results 11 to 20 of about 25,686,348 (370)

Spectral mode-beat phenomena in a cylindrical microcavity [PDF]

open access: diamond, 1999
Detailed spectral analysis of photon scanning tunneling microscope images has been carried out. The analysis of spectral mode-beat phenomena leads to an accurate determination of mode profiles and gives evidence of counterpropagating ...
Balistreri, M.L.M.   +6 more
core   +12 more sources

Bicomplex Frames [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
We define in a natural way the bicomplex analog of the frames (bc-frames) in the setting of  bicomplex infinite Hilbert spaces, and we characterize them in terms of their idempotent components.
Aiad Elgourari   +2 more
doaj   +1 more source

Photon-Energy-Dependent Reversible Charge Transfer Dynamics of Double Perovskite Nanocrystal-Polymer Nanocomposites

open access: yesNanomaterials, 2022
Combining steady-state photoluminescence and transient absorption (TA) spectroscopy, we have investigated the photoinduced charge transfer dynamics between lead-free Mn-doped Cs2NaIn0.75Bi0.25Cl6 double perovskite (DP) nanocrystals (NCs) and conjugated ...
Ruixiang Wu   +8 more
doaj   +1 more source

APOGEE Data and Spectral Analysis from SDSS Data Release 16: Seven Years of Observations Including First Results from APOGEE-South [PDF]

open access: yesAstronomical Journal, 2020
The spectral analysis and data products in Data Release 16 (DR16; 2019 December) from the high-resolution near-infrared Apache Point Observatory Galactic Evolution Experiment (APOGEE)-2/Sloan Digital Sky Survey (SDSS)-IV survey are described. Compared to
H. Jönsson   +22 more
semanticscholar   +1 more source

New perspective of ceria nanodots for precise tumor therapy via oxidative stress pathway

open access: yesHeliyon, 2022
Ceria-based nanomaterials have aroused major attentions among the biomedical application research field in recent years. Most of the researches have mainly focused on promoting the functional healing therapies of normal cells/organs with cerium oxide ...
Hui Wang   +6 more
doaj   +1 more source

An innovate approach for retinal blood vessel segmentation using mixture of supervised and unsupervised methods

open access: yesIET Image Processing, 2021
Segmentation of retinal blood vessels is a very important diagnostic procedure in ophthalmology. Segmenting blood vessels in the presence of pathological lesions is a major challenge.
Md. Abu Sayed   +4 more
doaj   +1 more source

Point Cloud Segmentation from iPhone-Based LiDAR Sensors Using the Tensor Feature

open access: yesApplied Sciences, 2022
With widely used LiDAR sensors included in consumer electronic devices, it is increasingly convenient to acquire point cloud data, but it is also difficult to segment the point cloud data obtained from these unprofessional LiDAR devices, due to their low
Xuan Wang   +4 more
doaj   +1 more source

Rapid spectral analysis for spectral imaging [PDF]

open access: yesBiomedical Optics Express, 2010
Spectral imaging requires rapid analysis of spectra associated with each pixel. A rapid algorithm has been developed that uses iterative matrix inversions to solve for the absorption spectra of a tissue using a lookup table for photon pathlength based on numerical simulations.
Jacques, Steven L.   +2 more
openaire   +2 more sources

Line Structure Extraction from LiDAR Point Cloud Based on the Persistence of Tensor Feature

open access: yesApplied Sciences, 2022
The LiDAR point cloud has been widely used in scenarios of automatic driving, object recognition, structure reconstruction, etc., while it remains a challenging problem in line structure extraction, due to the noise and accuracy, especially in data ...
Xuan Wang   +3 more
doaj   +1 more source

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