Zobrazeno 1 - 10
of 60
pro vyhledávání: '"R B, de Castro"'
Autor:
J. M. Godoy, M. Skacel, S. L. Balassiano, J. R. M. Neves, G. S. Goffredo Filho, R. B. de Castro, D. H. Nicaretta, R. G. S. Souza, M. H. F. Mendes
Publikováno v:
Arquivos de Neuro-Psiquiatria, Vol 49, Iss 3, Pp 321-325 (1991)
Os autores apresentam três casos de pacientes com esclerose lateral amiotrófica, variante de Patrikios, chamando a atenção para a importância do diagnóstico diferencial desta com as neuropatias periféricas.
Externí odkaz:
https://doaj.org/article/25ca59a1c6174b5e9456100951f4e13a
Publikováno v:
AIP Advances, Vol 3, Iss 7, Pp 072106-072106 (2013)
A generalized Hydrodynamics, referred to as Mesoscopic Hydro-Thermodynamics, of phonons in semiconductors is presented. It involves the descriptions of the motion of the quasi-particle density and of the energy density. The hydrodynamic equations, wh
Externí odkaz:
https://doaj.org/article/4bdd8eccf7db481294902d79786ed20b
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. :21-27
In the context of direct imaging of single nanoparticles, we discuss strategies for simulation of the small angle X-ray scattering (SAXS) of nanoparticles, propose a new scalar numerical approach applicable to arbitrary collections of atoms and compa
Autor:
W. Laasch, A. Swiderski, H. Wabnitz, Christoph Bostedt, Joachim Schulz, Tim Laarmann, P. Gürtler, A. R. B. de Castro, Thomas Möller
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. :3-6
We report on first experiments of rare gas cluster dynamics and spectroscopy using light from the DESY free electron laser at 13 eV. The energy absorption is found to be very efficient and the clusters fragment completely. Non-linear effects appear a
Autor:
Thomas Möller, A. R. B. de Castro
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 545:568-577
We discuss strategies for color separation and recombination, regarding 2-color pump-and-probe experiments planned for the DESY XUV FEL Phase 2. We show that efficient handling of the pump and probe components, with good spectral and spatial separati
Autor:
Ruben Reininger, A. R. B. de Castro
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 538:760-770
We give a unified discussion of two different approaches to the design of grazing incidence monochromators with a variable line spacing (VLS) grating for soft X-ray undulator sources. Neither one uses an entrance slit and both work with a fixed posit
Autor:
Arun Lobo, A. R. B. de Castro, Thomas Möller, S. Adam, Dmitri V. Talapin, C. McGinley, Holger Borchert, Horst Weller
Publikováno v:
The Journal of Chemical Physics. 119:1800-1807
Colloidally prepared CdSe and CdSe/ZnS core-shell nanocrystals passivated with trioctylphosphine/trioctylphosphine oxide and hexadecylamine have been studied by photoelectron spectroscopy with tuneable synchrotron radiation. High-resolution spectra o
Autor:
H. Wabnitz, W. Laasch, Th. Moller, Tim Laarmann, Joachim Schulz, P. Gürtler, A. R. B. de Castro, A. Swiderski
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 507:572-576
As one of the first experiments at the free electron laser of the TESLA Test Facility (TTF) the Coulomb explosion of Xenon clusters irradiated with high intensity pulses at a wavelength of 98 nm has been observed. Classical trajectory calculations ha
Autor:
A. R. B. de Castro, Roberto D. Zysler
Publikováno v:
Journal of Magnetism and Magnetic Materials. 257:51-57
We made Monte Carlo simulations of the energy distribution and magnetic moment contributions of surface and core sites in a model particle of spherical shape, intended as a simple representation of hematite colloids. We included exchange interactions
Publikováno v:
Chemical Physics Letters. 351:235-241
We have recorded synchrotron radiation excited photoelectron spectra of free Ne and Ar cluster beams in the valence and inner valence region. Varying the cluster sizes from a few up to some hundred atoms, the development of inelastic energy losses of