Results 11 to 20 of about 1,474,810 (297)

Quantitative Phase Analysis by X-ray Diffraction—Doping Methods and Applications

Crystals, 2020
X-ray powder diffraction is an ideal technique for the quantitative analysis of a multiphase sample. The intensities of diffraction lines of a phase in a multiphase sample are proportional to the phase fraction and the quantitative analysis can be ...
Stanko Popović
doaj   +3 more sources

X-ray Phase-Contrast Imaging and Metrology through Unified Modulated Pattern Analysis [PDF]

Physical Review Letters, 2017
We present a method for x-ray phase-contrast imaging and metrology applications based on the sample-induced modulation and subsequent computational demodulation of a random or periodic reference interference pattern. The proposed unified modulated pattern analysis (UMPA) technique is a versatile approach and allows tuning of signal sensitivity, spatial
Marie-Christine Zdora, Pierre Thibault, Tunhe Zhou, Frieder J. Koch, Jenny Romell, Simone Sala, Arndt Last, Christoph Rau, Irene Zanette   +8 more
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Phase transformation path in Aluminum under ramp compression; simulation and experimental study

Scientific Reports, 2022
We present a framework based on non-equilibrium molecular dynamics (NEMD) to reproduce the phase transformation event of Aluminum under ramp compression loading.
Lijie He, Danae Polsin, Shuai Zhang, Gilbert W. Collins, Niaz Abdolrahim   +4 more
doaj   +1 more source

Zinc sulfide restoration from the used television kinescopes and monitors of computers

Trudy Odesskogo Politehničeskogo Universiteta, 2015
One of the ways of restoration and use of secondary raw materials of waste for the decision both economic and environmental problems is described. Definition of optimum physical and chemical conditions of extraction of sulfide of zinc as secondary ...
Natalia I. Zavgorodnia, Alexandr A. Pivovarov   +1 more
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A bibliometric and social network analysis perspective of X‐ray phase‐contrast imaging in medical imaging

Journal of Medical Radiation Sciences, 2022
Introduction Phase‐contrast imaging (PCI) is a novel technology that can visualise variations in X‐ray refraction (phase contrast) in addition to differences in X‐ray attenuation (absorption contrast).
Jessica Tu, Patrick C. Brennan, Sarah Lewis, Seyedamir Tavakoli Taba   +3 more
doaj   +1 more source

Evaluating X-Ray Microanalysis Phase Maps Using Principal Component Analysis [PDF]

Microscopy and Microanalysis, 2018
AbstractAutomated phase maps are an important tool for characterizing samples but the data quality must be evaluated. Common options include the overlay of phases on backscattered electron (BSE) images and phase composition averages and standard deviations. Both these methods have major limitations.
Buse, Benjamin, Kearns, Stuart
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X-ray and Radio Timing of the Pulsar in 3C 58 [PDF]

, 2009
We present timing data spanning 6.4 yr for the young and energetic PSR J0205+6449, in the supernova remnant 3C 58. Data were obtained with the Rossi X-ray Timing Explorer, the Jodrell Bank Observatory and the Green Bank Telescope.
Abdo, Abdo, Abdo, Abdo, Abdo, Andrew G. Lyne, Becker, Becker, Bietenholz, Bietenholz, Buccheri, Camilo, Chatterjee, De Jager, De Luca, Dib, Fernando Camilo, Gonzalez, Gotthelf, Halpern, Harding, Hermsen, Ingrid H. Stairs, Jahoda, Kaspi, Kaspi, Kramer, Kuiper, Livingstone, Lyne, Lyne, Lyne, Margaret A. Livingstone, Michael Kramer, Murray, Ng, Pellizzoni, Pellizzoni, Ramanamurthy, Ransom, Ransom, Roberts, Rots, Rots, Scott M. Ransom, Slane, Slane, Stephenson, Tam, Thompson, Torii, Urama, Victoria M. Kaspi, Zavlin, Zavlin   +54 more
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Crystallographic characterization of naturally occurring aragonite and calcite phase: Rietveld refinement

Journal of Saudi Chemical Society, 2023
This research has comprehended the crystallographic characterization of two naturally occurring calcium carbonates phases e.g. aragonite and calcite in Pila globosa (P. globosa) and eggshells respectively.
Md. Sahadat Hossain, Samina Ahmed
doaj   +1 more source

A Variable Selection Procedure for X-ray Diffraction Phase Analysis [PDF]

Applied Spectroscopy, 2007
The X-ray diffraction method has been widely used for qualitative and quantitative phase abundance analysis of crystalline materials. We propose the use of partial least squares when building the calibration model for a quantitative phase analysis based on X-ray diffraction spectra.
Lee, D, Lee, H, Jun, CH, Chang, CH
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Hard X-ray lags in GRO J1719-24 [PDF]

, 1999
We have used the Fourier cross spectra of GRO J1719-24, as obtained with BATSE, to estimate the phase lags between the X-ray flux variations in the 20--50 and 50--100 keV energy bands as a function of Fourier frequency in the interval 0.002--0.488 Hz ...
B. A. Harmon, Belloni T., C. Kouveliotou, D. J. Crary, Della Valle M., F. van der Hooft, J. van Paradijs, M. H. Finger, M. van der Klis, Masetti N., Revnivtsev M., S. N. Zhang, van der Hooft F., W. H. G. Lewin, W. S. Paciesas   +14 more
core   +2 more sources