Results 251 to 260 of about 525,815 (289)

Small Angle X-Ray Scattering Spectroscopy

2011
Conformational changes imposed upon the Fe protein during binding and hydrolysis of Mg·ATP are key to initiating the cycle of interactions within the nitrogenase complex that result in gated electron transfer and the eventual multiple electron reduction of dinitrogen to ammonia.
John W. Peters, David W. Mulder
openaire   +3 more sources

Positional small‐angle X‐ray scattering

Polymer Engineering & Science, 1982
AbstractPositional small‐angle X‐ray scattering has been implemented and developed as a new nondestructive technique to study the formation and growth of flaws in polymers. The technique consists of measuring the intensity of scattering at a constant scattering angle while the sample is moved through the incident x‐ray beam. Examples of applications of
W. V. Olszewski, G. R. Tryson, D. G. Legrand, M. Forth   +3 more
openaire   +2 more sources

A low-background-intensity focusing small-angle X-ray scattering undulator beamline

, 2013
The SAXS/WAXS beamline at the Australian Synchrotron is an advanced and flexible undulator X-ray scattering beamline used for small- and wide-angle X-ray scattering analysis on a wide variety of solids, fluids and surfaces across a diverse range of ...
N. Kirby, S. Mudie, A. Hawley, D. Cookson, H. Mertens, N. Cowieson, Vesna Samardzic-Boban   +6 more
semanticscholar   +1 more source

An X-Ray Small-Angle Scattering Instrument

Advances in X-ray Analysis, 1967
AbstractAn X-ray small-angle scattering instrument is described which is used for recording X-ray diffraction patterns or small-angle X-ray scattering curves in an angular region very close to the direct beam. The measurement of X-ray intensity is accomplished with standard geiger or scintillation counter techniques.
openaire   +2 more sources

Determination of the molecular weight of proteins in solution from a single small-angle X-ray scattering measurement on a relative scale

, 2010
This paper describes a new and simple method to determine the molecular weight of proteins in dilute solution, with an error smaller than ∼10%, by using the experimental data of a single small-angle X-ray scattering (SAXS) curve measured on a relative ...
H. Fischer, M. Neto, H. Napolitano, I. Polikarpov, A. Craievich   +4 more
semanticscholar   +1 more source

Small-angle x-ray scattering from mitochondria

Biochimica et Biophysica Acta (BBA) - Biomembranes, 1977
X-ray (CuKalpha) scattering curves of rat liver mitochondria are characterized by continuously decreasing intensity from 0.5 to 5 mrad and a broad maximum centered near 20 mrad. The condensed-to-orthodox morphological transition of the inner membranes of intact mitochondria causes a dramatic decrease in scattering at very small angle and a marked shift
Carmen A. Mannella, D.F. Parsons
openaire   +3 more sources

Small angle X-ray scattering studies on myosin

Journal of Cell Science, 1991
ABSTRACT Small angle X-ray scattering (SAXS) is a potentially powerful method for obtaining structural information from biological molecules in solution. The use of this technique in the laboratory has hitherto been limited by the long exposures necessary to obtain patterns on photographic film.
John Kendrick-Jones, A. R. Faruqi, Robert A. Cross   +2 more
openaire   +3 more sources

THE SCATTERING OF X-RAYS AT VERY SMALL ANGLES

Canadian Journal of Research, 1937
The scattering of X-rays at small angles (minutes of arc) in commercial samples of charcoal and powdered graphite and in anthracene precipitate was investigated. In addition, the effect of pressure on the scattering in Shawinigan charcoal was determined.
J. A. Gray, H. H. Penley
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Note on the Scattering of X-rays at Small Angles

Canadian Journal of Research, 1935
not available
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X-Ray small-angle scattering of glassy carbon

Carbon, 1972
The micropore system of glassy C atoms has been characterized by a number of structural parameters obtained from X-ray small-angle scattering. The pore sizes and pore shapes are very similar to those already observed in other non-graphitizing C atoms, notably carbon fibres.
W. Ruland, R. Perret
openaire   +3 more sources