(SAXS)The microscopic inhomogeneity in a supercritical mixture of (CO2)1−x(H2O)x (x=0.003) has been studied by small-angle X-ray scattering (SAXS) at 308.2 K and six different pressures/densities. The results show that the correlation length and density fluctuation is maximized near ...
Please note, that the here derived relaxation time is measured in SAXS geometry at a momentum transfer range of 0.002 Å−1 \( < \) Q \( < \) 0.02 Å−1 and hence probes a collective motion at length scales from 10 nm to several 100 nm rather than the molecular ...
10 with visual damage. We begin with CT and connect this to a comprehensive SAXS/WAXS mapping of the impact site. We parameterize these data by identifying suitable descriptors at each structural level, and identify different spatial domains. These include domains of severe damage (visual), intact...
requiring multi-scale modeling to understand mechanical behavior from atomic to macroscopic levels [137]. Synchrotron X-ray facilities have improved our ability to study material structures at various length scales using small and wide-angle X-ray scattering (SAXS and WAXS); indeed, in situ mechanic...
(SAXS) to clarify the effect ofintermolecular interactionson Brownian motion of proteins with macroscopic solution viscosity. Three different proteins were investigated in aqueous solution, namely αB-crystalline,bovine serum albumin, and hen egg-white lysozyme. The results presented by Ross ...
We calculate the signal to noise ratio (SNR) of XPCS experiments from a concentrated lysozyme solution at the length scale of the hydrodynamic radius of the protein molecule. We take limitations given by the critical X-ray dose into account and find expressions for the SNR as a function of ...
SAXSDiffusionPhoton Correlation Spectroscopy is used to study the AOT microemulsion with and without NaCl. Collective diffusion coefficient was investigated by Photon Correlation Spectroscopy technique. We have studied effect of charge on dynamic of water-in-oil microemulsion (nano-droplet of water to ...
The structural investigation of samples shows a decrease of length scale of cylindrical droplets with increasing of NaCl concentration in AOT microemulsion.Nahid KarimiSoheil SharifiMousa Aliahmad光学与光子学期刊(英文)N. Karimi, S. Sharifi, and M. Aliahma, "Photon correlation spectroscopy and SAXS ...
In particular, the exceptional large transverse coherence of the X-ray pulses and the high time-averaged flux promises to reach time and length scales that have not been accessible up to now with storage ring based sources. However, due to the fluctuations originating from the stochastic nature ...
67.5 nm (0.225D) for tetrahedral pores and 124.2 nm (0.414D) for octahedral pores, whereDis the silica sphere size (in this study,D = 300 nm, see “Methods”). This suggests that the electron scattering in metals confined to nanopores is the main cause of the coherence length ...