Results 71 to 80 of about 337,692 (304)
Polarised Positrons for the ILC
, 2007 Presented at the XXXI International Conference of Theoretical Physics, "Matter to the Deepest", Ustron, Poland, September 5--11 ...
openaire +4 more sources
In vivo imaging of cellular proliferation in colorectal cancer using positron emission tomography [PDF]
, 2003 Background and aims: Positron emission tomography (PET) using 18F labelled 2-fluoro-2-deoxy-D-glucose (18FDG) is an established imaging tool, although the recent development of a biologically stable thymidine analogue [18F] 3'-deoxy-3-fluorothymidine ...
Costa, D.C. +7 more
core
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
The scattering of positrons by electrons with exchange on Dirac’s theory of the positron [PDF]
Proceedings of the Royal Society of London. Series A - Mathematical and Physical Sciences, 1936 Abstract It has been shown by Mott that exchange effects play a considerable part in the collision and consequent scattering of one electron by another. Mott’s original calculation was non-relativistic, and there the exchange effect vanishes when the two electrons have their spins pointing in opposite directions.
openaire +1 more source
Zirconium-89 Complexes for Cell Tracking with Positron Emission Tomography [PDF]
, 2015 Tracking cell migration in vivo by scintigraphy using cells labelled with gamma-emitting radionuclides (especially indium-111) is a well-established clinical and research tool.
Ferris, Trevor John
core
Advanced Functional Materials, EarlyView.A 3D‐printable breast phantom is developed using patient‐derived MRI data and hydrogels that replicate the dielectric properties of healthy and cancerous tissues. Mechanical and dielectric characterization confirm its suitability for microwave imaging.
Carlos M. Andreu +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Hydrophilic PEO‐copolymers and hydrophobic PDMS are physically integrated via a compatibilizing solvent into an amphipathic dual‐polymer network with versatile interfacial affinity and completely amorphized PEO segments for hyper‐permeable CO2 transport.
Ji Wu +9 more
wiley +1 more source
Statistical analysis of maximum likelihood estimator images of human brain FDG PET studies [PDF]
, 1993 The work presented evaluates the statistical characteristics of regional bias and expected error in reconstructions of real positron emission tomography (PET) data of human brain fluoro-deoxiglucose (FDG) studies carried out by the maximum likelihood ...
Coakley, Kevin J. +4 more
core +1 more source
Advanced Materials, EarlyView.The mechanical performance of nanocellular polyetherimide cannot be explained by nanoporosity alone. It is shown that CO2 saturation and desorption leave a distinct mechanical signature in the glassy matrix before foaming. This matrix contribution provides a new route to understand and optimize the brittle to ductile transition in nanocellular polymers.
Félix Lizalde‐Arroyo +7 more
wiley +1 more source
Физика волновых процессов и радиотехнические системы, 2014 The reasons of angular photon distribution occurrence at electron-positron annihilation are considered. It is shown, that angular photon distribution is consequence of Dopplers effect in the reference frame of the electron and positron mass center.
A.N. Volobuev, T.A. Antipova
doaj