Results 171 to 180 of about 93,066 (198)
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Small-angle neutron scattering
2006The use of small-angle neutron scattering (SANS) for the study of biological macromolecules is described. Topics covered in this chapter include: the theoretical basis of SANS; contrast variation; and the measurement of distances between chemically specified points in a macromolecule or macromolecular complex. Practical considerations are addressed and
D. M. Engelman, P. B. Moore
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Small angle scattering of electrons
Physics Letters A, 1973Abstract The small angle scattering of low energy electrons has been studied. It has been shown that the cross-sections obtained using the Born's first approximation, corrected for screening effects should be used to study the small angle scattering of low energy electrons.
R. N. Singh +2 more
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Kinematics of small angle scattering
The Journal of Chemical Physics, 1974In beam-recoil measurements of the scattering of molecules by electrons or photons, deflected molecules are observed at very small angles, comparable to the angular divergences of the observed and crossing beams. A kinematic analysis is presented that explicitly includes the effects of these divergences.
M. G. Fickes, R. C. Stern
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Small-angle scattering of polyelectrolyte solutions
Macromolecules, 1984Calcul de l'intensite de diffusion aux petits angles; point maximum g m de l'intensite de diffusion; comparaison avec les resultats ...
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Instrumentation for Small-Angle Scattering [PDF]
, 1995 A review of small-angle X-ray (SAXS) and small-angle neutron (SANS) scattering instruments is given. The difference between long-slit and pinhole collimation and the influence of a broad band-pass monochromator are discussed with respect to the smearing of the measured scattering curves. The various components of SAXS setups are described: conventional
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Small angle scattering and asphaltenes [PDF]
Journal of Physics: Condensed Matter, 2006 Petroleum is a mixture of organic material consisting of a series of molecules with increasing molecular weight but with decreasing carbon to hydrogen ratios. This monotonic trend leads to distinctive properties of each class, cut by solvents. Asphaltenes are a class soluble in toluene but not in heptane.
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Small-angle scattering and diffraction
Synchrotron Radiation News, 2000(2000). Small-angle scattering and diffraction. Synchrotron Radiation News: Vol. 13, No. 5, pp. 10-16.
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On Small-Angle Critical Scattering
The Journal of Chemical Physics, 1962Recent theoretical studies of simplified models of cooperative assemblies of atoms or molecules suggest that the pair correlation function G(r) at the critical is not given by the Ornstein—Zernike (O.Z.) expression but that this relation becomes asymptotically valid for large distances r away from the critical.
G. W. Brady, H. L. Frisch
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1994
Small-angle X-ray scattering (SAXS) was discovered in 1938 by A. Guinier.(1) It is now a powerful method for characterizing catalysts (particle size, surface area) and disordered materials such as gels, sols, defective alloys, porous oxides or carbons, polymers.
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Small-angle X-ray scattering (SAXS) was discovered in 1938 by A. Guinier.(1) It is now a powerful method for characterizing catalysts (particle size, surface area) and disordered materials such as gels, sols, defective alloys, porous oxides or carbons, polymers.
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Elastic scattering at small angles of protons
Nuclear Physics A, 1978Abstract Differential cross sections and asymmetries are obtained from elastic scattering, between 0° and 7°, of 36.2 MeV polarized protons by C, Al, Fe and Ni natural targets.
A. Venaglioni +7 more
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