scholarly journals Towards robust cellular image classification: theoretical foundations for wide-angle 
scattering pattern analysis

2010 ◽  
Vol 1 (4) ◽  
pp. 1225 ◽  
Author(s):  
Patrick M. Pilarski ◽  
Christopher J. Backhouse
Keyword(s):  
Image Classification ◽  
Pattern Analysis ◽  
Wide Angle ◽  
Scattering Pattern ◽  
Angle Scattering ◽  
Theoretical Foundations

Deformation Behavior of Poly(ether ester) Copolymer As Revealed by Small- and Wide-Angle Scattering of X-ray Radiation from Synchrotron

1997 ◽  
Vol 30 (5) ◽  
pp. 1329-1339 ◽  
Author(s):  
N. Stribeck ◽  
D. Sapoundjieva ◽  
Z. Denchev ◽  
A. A. Apostolov ◽  
H. G. Zachmann ◽  
...  
Keyword(s):  
Deformation Behavior ◽  
Wide Angle ◽  
X Ray ◽  
Angle Scattering ◽  
Ether Ester

Experimental Evidence of Clusters in Molten Alloys of the Eutectic Aluminum-Tin System by Means of a X-Ray-high Temperature-small Angle Scattering Apparatus

1970 ◽  
Vol 25 (7) ◽  
pp. 1085-1091 ◽  
Author(s):  
R. Hezel ◽  
S. Steeb
Keyword(s):  
High Temperature ◽  
Small Angle ◽  
Short Range ◽  
Eutectic System ◽  
Wide Angle ◽  
Molten Metals ◽  
Scattered Intensity ◽  
Solid Materials ◽  
X Ray ◽  
Angle Scattering

An apparatus for measuring X-Ray small- and wide angle scattering of solid materials and especially of molten metals with temperatures up to 1100 °C is described. Alloys of the eutectic system Al -Sn with tin-contents up to 30 At.-% are investigated. The influence of surface oxide layers on the scattered intensity is discussed. Correlation functions as well as the Guinier approximation yielded inhomogeneities with mean diameters up to 10 Å in the investigated melts. Therefore the dimensions of these so-called short range segregation zones correspond to those of the first coordination sphere

scholarly journals Instrumental setup for high-throughput small- and wide-angle solution scattering at the X33 beamline of EMBL Hamburg

2012 ◽  
Vol 45 (3) ◽  
pp. 489-495 ◽  
Author(s):  
Clement E. Blanchet ◽  
Alexey V. Zozulya ◽  
Alexey G. Kikhney ◽  
Daniel Franke ◽  
Peter V. Konarev ◽  
...  
Keyword(s):  
High Throughput ◽  
Digital Camera ◽  
Sample Volume ◽  
Wide Angle ◽  
Pixel Detector ◽  
Fully Integrated ◽  
X Ray Scattering ◽  
Angle Scattering ◽  
Rapid Switching ◽  
User Friendly

A setup is presented for automated high-throughput measurements of small-angle X-ray scattering (SAXS) from macromolecular solutions on the bending-magnet beamline X33 of EMBL at the storage ring DORIS-III (DESY, Hamburg). A new multi-cell compartment allows for rapid switching between in-vacuum and in-air operation, for digital camera assisted control of cell filling and for colour sample illumination. The beamline is equipped with a Pilatus 1 M-W pixel detector for SAXS and a Pilatus 300 k-W for wide-angle scattering (WAXS), and results from the use of the Pilatus detectors for scattering studies are reported. The setup provides a broad resolution range from 100 to 0.36 nm without the necessity of changing the sample-to-detector distance. A new optimized robotic sample changer is installed, permitting rapid and reliable automated sample loading and cell cleaning with a required sample volume of 40 µl. All the devices are fully integrated into the beamline control software system, ensuring fully automated and user-friendly operation (attended, unattended and remote) with a throughput of up to 15 measurements per hour.

Fast Lidar and Radar Multiple-Scattering Models. Part I: Small-Angle Scattering Using the Photon Variance–Covariance Method

2008 ◽  
Vol 65 (12) ◽  
pp. 3621-3635 ◽  
Author(s):  
Robin J. Hogan
Keyword(s):  
Multiple Scattering ◽  
Small Angle ◽  
Wide Angle ◽  
Photon Distribution ◽  
Spatial Variance ◽  
Angle Scattering ◽  
Photon Direction ◽  
Small Footprint ◽  
Scattering Phase ◽  
Scattering Phase Function

Abstract A fast, approximate method is described for the calculation of the intensity of multiply scattered lidar returns from clouds. At each range gate it characterizes the outgoing photon distribution by its spatial variance, the variance of photon direction, and the covariance of photon direction and position. The result is that for an N-point profile the calculation is O(N) efficient yet it implicitly includes all orders of scattering, in contrast with the O(Nm/m!) efficiency of models that explicitly consider each scattering order separately for truncation at m-order scattering. It is also shown how the shape of the scattering phase function near 180° may be taken into account for both liquid water droplets and ice particles. The model considers only multiple scattering due to small-angle forward-scattering events, which is suitable for most ground-based and airborne lidars because of their small footprint on the cloud. For spaceborne lidar, it must be used in combination with the wide-angle multiple scattering model described in Part II of this two-part paper.

Wide-angle scattering of 43 MeV alpha particles by 58Ni

1965 ◽  
Vol 64 (2) ◽  
pp. 259-272 ◽  
Author(s):  
H.W. Broek ◽  
J.L. Yntema ◽  
B. Buck ◽  
G.R. Satchler
Keyword(s):  
Alpha Particles ◽  
Wide Angle ◽  
Angle Scattering

Effect of Treating Time on Mechanical Properties and Structure of Aramid Fibers during Heat Drawing

2015 ◽  
Vol 789-790 ◽  
pp. 71-74
Author(s):  
Hai Juan Kong ◽  
Peng Yang ◽  
Cui Qing Teng ◽  
Ahmed M.S. Dawelbeit ◽  
Mu Huo Yu
Keyword(s):  
Mechanical Properties ◽  
Heat Treating ◽  
Line Orientation ◽  
Wide Angle ◽  
Drawing Process ◽  
Two Dimensional ◽  
High Modulus ◽  
Aramid Fibers ◽  
Crystalline Perfection ◽  
Angle Scattering

High modulus Poly (p-phenyleneterephalamide)(PPTA) fibers was prepared by heat drawing process, in which the fibers rearranged their structures for further improvements in their crystalline perfection, crystal line orientation. The modulus of PPTA fibers could be improved when fibers treated in an appropriate condition. The influences of heat treating time on the structures of the fibers and their properties were investigated by using two-dimensional wide-angle scattering (WAXS).

In situSAXS studies of the formation of sodium jarosite

2013 ◽  
Vol 20 (4) ◽  
pp. 626-634 ◽  
Author(s):  
Helen E. A. Brand ◽  
Nicola V. Y. Scarlett ◽  
Ian E. Grey ◽  
Robert B. Knott ◽  
Nigel Kirby
Keyword(s):  
Powder Diffraction ◽  
Reaction Vessel ◽  
Scattering Data ◽  
Wide Angle ◽  
Powder Diffraction Data ◽  
Nucleation Event ◽  
Time Resolved ◽  
Angle Scattering ◽  
Co Precipitation

This paper reports the results of time-resolved synchrotron small-angle scattering and powder diffraction experiments where natrojarosites were synthesizedin situin order to observe the species produced at the earliest stages of nucleation. The sample temperatures were 333, 353 and 368 K. These compounds were synthesized by co-precipitation from solution on the Small and Wide Angle Scattering and Powder Diffraction beamlines at the Australian Synchrotron. Scattering data were collected continuously throughout the syntheses. The results presented here show that the first particles to form in solution appear to be amorphous and nucleate on the walls of the reaction vessel. Crucially, there is a single nucleation event which forms particles with an elliptical disc morphology which then grow uniformly before natrojarosite crystallization is observed in complementary powder diffraction data. This nucleation event may represent the key to controlling the growth of jarosites in industrial and environmental settings.

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