Results 111 to 120 of about 7,241,935 (286)
Force–Displacement Characterization of PNIPAM Microactuators
Advanced Robotics Research, EarlyView.A method to experimentally establish a force–displacement diagram of poly(N‐isopropyl acrylamide) (PNIPAM) microactuators, printed by 2PP, is presented herein. PNIPAM is a hydrogel whose volume and stiffness change with temperature due to the absorption or release of water.
Manon Cassignol +4 more
wiley +1 more source
Attenuation correction of myocardial perfusion scintigraphy images without transmission scanning [PDF]
, 2015 Attenuation correction is essential for reliable interpretation of emission tomography; however the use of transmission measurements to generate attenuation maps is limited by availability of equipment and potential mismatches between the transmission ...
Cade, SC
core
, 2006 The purpose of this study was to compare myocardial contrast echocardiography (MCE) with single-photon emission computed tomography (SPECT) for the detection of significant coronary artery disease (CAD) in patients with symptoms suggestive of ...
Hickman, Michael +13 more
core +1 more source
Robotics in Ionizing Radiation Environments: Vulnerabilities, Hardening, and Future Directions
Advanced Robotics Research, EarlyView.Radiation exposure causes cumulative degradation in robotic sensors, actuators, and electronic logic, often leading to undetected failures. This study maps component vulnerabilities, evaluates hardening and shielding strategies, and identifies testing gaps that must be addressed to enable next‐generation radiation‐tolerant robotic systems.
Francis A. K. Djirackor +4 more
wiley +1 more source
Single photon emission computed tomography (SPECT)
, 2017 Single photon emission computed tomography (SPECT) allows an organ to be imaged in three dimensions with enhanced contrast. Of particular relevance in nuclear cardiology, it also allows the heart to be reorientated relative to its own axes, and slices ...
Nikant Sabharwal +2 more
core +1 more source
Advanced Science, EarlyView.Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green +15 more
wiley +1 more source
A hybrid 3-D reconstruction/registration algorithm for correction of head motion in emission tomography [PDF]
, 2002 Even with head restraint, small head movements can occur during data acquisition in emission tomography that are sufficiently large to result in detectable artifacts in the final reconstruction.
Hutton, BF +4 more
core
Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys
Advanced Science, EarlyView.This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin +11 more
wiley +1 more source
, 2002 We apply the natural pixel (NP) approach to the single photon emission computed tomography (SPECT) problem. The rotational invariance of the system induces a block circulant structure in the Gram matrix.
BRIANZI, PAOLA +2 more
core +1 more source
ABILITIES AND EXPERIENCE OF APPLICATION OF NEUROVISUALIZATION FUNCTIONAL METHODS IN EPILEPTOLOGY
Эпилепсия и пароксизмальные состояния, 2016 Modern methods of instrumental diagnosis allow the rise of quality, swiftness and accuracy of diagnosis to a new higher level. This article highlights the abilities of proton magnetic resonance spectroscopy (1H-MRS), positron emission tomography (PET ...
M. M. Odinak +3 more
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