Buscar
Mostrando ítems 51-60 de 10342
Microcontrolled pyro-electric instrument for measuring X-ray intensity in mammography
(2005-12-01)
A novel instrument for measurement of X-ray intensity from mammography consists of a sensitive pyro-electric detector, a high-sensitivity, low-noise current-to-voltage converter, a microcontroller and a digital display. ...
High-redshift Extremely Red Quasars in X-Rays
(2018)
Quasars may have played a key role in limiting the stellar mass of massive galaxies. Identifying those quasars in the process of removing star formation fuel from their hosts is an exciting ongoing challenge in extragalactic ...
A novel electrochemical cell for operando X-ray absorption measurements at low energies: Probing electrochemically induced electronic changes in palladium
(2018-09-01)
Operando assessment of electronic properties near the Fermi level is essential to gain new insights into the mechanisms of electrochemical reactions as well as for the development of more efficient electrocatalysts. However, ...
Assessment of Three Spectroscopic Techniques for Rapid Estimation of Calcite in Copper Ore
(IEEE, 2010)
This paper presents the assessment of three spectroscopic techniques, i.e., Raman spectroscopy (RS), ultraviolet fluorescence (UVF) spectroscopy, and energy-dispersive X-ray diffraction (ED-XRD), for measuring calcite ...
Performance of the X-ray powder diffraction (XRD), X-ray fluorescence (XRF) and the industrial computed tomography used for characterization of the vesicular volcanic rock
(Associa????o Brasileira de Energia Nuclear, 2020)