Results 11 to 20 of about 313,485 (258)
Journal of Applied Sciences and Environmental Management, 2005 This study was conducted in order to ascertain levels of concentrations and areal distribution of heavy metals in the surface soils and vegetation around the Selebi Phikwe Ni-Cu mine and smelter/concentrator plant, Botswana. One hundred and forty samples
E Georges-Ivo Ekosse +2 more
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Crystal structure of 3-bromo-2-hydroxybenzonitrile
Acta Crystallographica Section E: Crystallographic Communications, 2015 The crystal structure of the title compound, C7H4BrNO, has been determined, revealing a partial molecular packing disorder such that a 180° rotation of the molecule about the phenol C—O bond results in disorder of the bromine and nitrile groups.
Sean R. Dickinson +2 more
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The Limits of X-ray Diffraction Theory
Crystals, 2023 X-ray diffraction theory allows the interpretation of experiments to build a structural model that fits the collected data. As with any experimental science, the observations are subject to uncertainty through the instrument and user limitations ...
Paul F. Fewster
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Alpha- quartz quantitative X ray diffraction analysis
Materiales de Construccion, 1967 Not ...
J. L. Sagrera
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Diffractive X-Ray Telescopes [PDF]
X-Ray Optics and Instrumentation, 2010 Diffractive X-ray telescopes using zone plates, phase Fresnel lenses, or related optical elements have the potential to provide astronomers with true imaging capability with resolution several orders of magnitude better than available in any other waveband.
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Subpicosecond X-ray diffraction
Laser and Particle Beams, 1994 With the advent of ultrashort (subpicosecond) high-power lasers it is now possible to create intense bursts of X-rays with subpicosecond durations. An analysis of the temporal response of diffraction of such X-rays by crystals in both the dynamical and kinematic regime is presented. It is also shown that under certain conditions the temporal resolution
Wark, J, He, H
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, 2005 This study presents recent developments and applications of ultrafast X-ray diffraction. These include optical pump/X-ray probe experiments for performing ultrafast X-ray spectroscopy, time-resolved X-ray diffraction for the investigation of electronically induced solid-liquid phase transformations in semiconductors, and time-resolved X-ray diffraction
Sokolowski-Tinten, Klaus +9 more
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Journal of Advanced Research, 2015 An efficient grinding protocol for the synthesis of dihydropyrano[2,3-c]pyrazole derivatives from acetylene ester, hydrazine hydrate, aryl aldehydes and malononitrile under solvent free conditions has been achieved with excellent yields.
Sethurajan Ambethkar +2 more
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Advantages of Using Hard X-ray Photons for Ultrafast Diffraction Measurements
Photonics, 2023 We present a comparative theoretical study of silicon crystals irradiated with X-ray free-electron laser pulses, using hard X-ray photons of various energies.
Vladimir Lipp, Ichiro Inoue, Beata Ziaja
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