Results 81 to 90 of about 22,285 (261)

High-throughput intensity diffraction tomography with a computational microscope [PDF]

open access: yes, 2018
We demonstrate a motion-free intensity diffraction tomography technique that enables direct inversion of 3D phase and absorption from intensity-only measurements for weakly scattering samples.
Lee, Hakho   +4 more
core  

A Bayesian approach to spectroscopic depth sectioning for locating dopant atoms

open access: yesJournal of Microscopy, EarlyView.
Abstract Locating dopants in 3D is of great interest as advanced materials and devices increasingly rely on control at atomic dimensions, and microscopy tools are constantly in development for this purpose. One potential tool is electron energy loss spectroscopy (EELS) depth sectioning, where a core‐loss signal is collected as a function of electron ...
Michael Deimetry   +3 more
wiley   +1 more source

Cross‐Site Generalization of CNN‐Based B1+$$ {B}_1^{+} $$ Mapping in UHF MRI

open access: yesNMR in Biomedicine, Volume 39, Issue 5, May 2026.
The study demonstrates that CNN%‐based B1+$$ {B}_1^{+} $$ mapping transfers across sites with only moderate accuracy loss: while on‐site RMSEs were as low as ~3%, cross‐site predictions increased errors but remained qualitatively robust. Despite these deviations, cross‐site maps successfully enabled dynamic 4kT‐points pulses, achieving flip‐angle ...
Kimon Hadjikiriakos   +13 more
wiley   +1 more source

Coronary computed tomography angiography of spontaneous coronary artery dissection: A case report and review of the literature [PDF]

open access: yes, 2015
Patient: Male, 23 Final Diagnosis: Spontaneous coronary artery dissection Symptoms: Chest discomfort • chest pain Medication: — Clinical Procedure: Coronary computed tomography angiography Specialty: Radiology OBJECTIVE: Rare disease BACKGROUND ...
Bhalla, Sanjeev   +3 more
core   +2 more sources

Damage‐limited resolution for X‐ray and electron microscopy of organic specimens

open access: yesActa Crystallographica Section D, Volume 82, Issue 5, Page 471-483, May 2026.
Analytical expressions for the damage‐limited resolution are developed and applied to X‐ray and electron imaging of beam‐sensitive specimens. The findings will guide future microscopy and instrument design.Analytical expressions for the damage‐limited resolution (DLR) are developed and applied to X‐ray and electron imaging of beam‐sensitive specimens ...
Ray F. Egerton, Colin Nave
wiley   +1 more source

“Anomalous right pulmonary artery left atrial fistula”: Growth in vain

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2015
We report a case of direct communication between the right pulmonary artery and the left atrium; a rare cause of central cyanosis in 10 year old boy, emphasizing the role of multislice computed tomography scanner in delineating the complex vascular ...
Vishal Kumar Jain   +5 more
doaj   +1 more source

Advances in ENT imaging [PDF]

open access: yes, 2003
Over the last ten years or so radiology has shown dramatic technological developments especially in cross sectional imaging and the investigation and management of the complex ENT patient has benefitted enormously.
Zammit-Maempel, I.
core  

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

open access: yesAdvanced Functional Materials, Volume 36, Issue 35, 30 April 2026.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker   +14 more
wiley   +1 more source

MULTISLICE THOMOGRAPHY EVALUATION IN CORONARY ARTERY DISEASE [PDF]

open access: yes, 2010
Conventional Coronary Angiography (CCA) is the diagnostic standard for identification and evaluation of coronary stenosis and coronary artery bypass graft (CABG) patency.
EVOLA, SALVATORE
core  

Linear-scaling algorithm for rapid computation of inelastic transitions in the presence of multiple electron scattering [PDF]

open access: yes, 2019
Strong multiple scattering of the probe in scanning transmission electron microscopy (STEM) means image simulations are usually required for quantitative interpretation and analysis of elemental maps produced by electron energy-loss spectroscopy (EELS ...
Brown, HG, Ciston, J, Ophus, C
core   +2 more sources

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