Results 71 to 80 of about 525,815 (289)
Indonesian Journal of Chemistry, 2021 Small-angle X-ray scattering (SAXS) experiments were set up to investigate the form and structure of Fe3O4 magnetic nanoparticles (MNPs) using BL1.3:SAXS at the Synchrotron Light Research Institute (SLRI) of Thailand in the range of scattering vector q ...
Gea Fitria +5 more
doaj +1 more source
Origin of the scatter in the X-ray luminosity of early-type galaxies observed with ROSAT [PDF]
, 2000 Statistical properties of X-ray luminosity and temperature are studied for 52 early-type galaxies based on the ROSAT PSPC data. All of the X-ray luminous galaxies show largely extended emission with a radius of a few times of 10$r_e$, while X-ray faint galaxies do not show such a component.
arxiv +1 more source
Ultraintense, ultrashort pulse x-ray scattering in small molecules [PDF]
, 2020 We examine x-ray scattering from an isolated organic molecule from the linear to nonlinear absorptiveregime. In the nonlinear regime, we explore the importance of both the elastic and inelastic channelsand observe the onset of nonlinear behavior as a function of pulse duration and energy.
arxiv +1 more source
, 2010 We construct a new sample of 32 obscured active galactic nuclei (AGNs) selected from the Second XMM-Newton Serendipitous Source Catalogue to investigate their multiwavelength properties in relation to the "scattering fraction", the ratio of the soft X ...
Antonucci +45 more
core +1 more source
Small-angle X-ray scattering investigation of the pore structure of nuclear filters [PDF]
, 1991 Different types of nuclear filters were investigated by means of small-angle X-ray scattering. The distribution functions of the cross-sectional squares were calculated.
A. B. Vasilev +5 more
core +1 more source
Atomic Scattering Factor for a Spherical Wave and the Near Field Effects in X-ray Fluorescence Holography [PDF]
, 2003 Formula for calculating the atomic scattering factor for spherical x-ray waves is derived and used to solve the near field effects problem in X-ray Fluorescence Holography theory. A rigorous formalism to calculate the X-ray fluorescence hologram for given atomic distributions is then given so that quantitative structural information can be derived from
arxiv +1 more source
Acquisition of high-quality three-dimensional electron diffuse scattering data [PDF]
arXiv, 2023 The diffraction patterns of crystalline materials with local order contain sharp Bragg reflections as well as highly structured diffuse scattering. The instrumental requirements, experimental parameters and data processing techniques for obtaining high-quality diffuse scattering data have previously been determined for X-ray and neutron diffraction ...
arxiv
Scattering by Interstellar Dust Grains. II. X-Rays [PDF]
Astrophys.J.598:1026-1037,2003, 2003 Scattering and absorption of X-rays by interstellar dust is calculated for a model consisting of carbonaceous grains and amorphous silicate grains. The calculations employ realistic dielectric functions with structure near X-ray absorption edges, with resulting features in absorption, scattering, and extinction. Differential scattering cross sections
arxiv +1 more source
Journal of the American Chemical Society, 2016 Mammalian phenylalanine hydroxylase (PheH) is an allosteric enzyme that catalyzes the first step in the catabolism of the amino acid phenylalanine. Following allosteric activation by high phenylalanine levels, the enzyme catalyzes the pterin-dependent ...
S. Meisburger +5 more
semanticscholar +1 more source
Determination of Sizes of Ag Nanoparticles in Glass Li2B4O7:Ag,Gd [PDF]
, 2015 Annealing in air and vacuum were obtained glass samples Li2B4O7:Ag,Gd with Ag NPs. Three methods: the half-width strip plasmon resonance, X-ray diffraction and Small-angle X-ray scattering, in these samples by size NPs Ag.
Adamiv, V.T. +5 more
core