Experimental demonstration of phase determination in neutron reflectometry by variation of the surrounding media

2000 ◽  
Vol 283 (1-3) ◽  
pp. 248-252 ◽  
Author(s):  
C.F. Majkrzak ◽  
N.F. Berk ◽  
V. Silin ◽  
C.W. Meuse
Keyword(s):  
Neutron Reflectometry ◽  
Experimental Demonstration ◽  
Phase Determination

Phase determination and inversion in specular neutron reflectometry

1998 ◽  
Vol 248 (1-4) ◽  
pp. 338-342 ◽  
Author(s):  
C.F. Majkrzak ◽  
N.F. Berk ◽  
J.A. Dura ◽  
S.K. Satija ◽  
A. Karim ◽  
...  
Keyword(s):  
Neutron Reflectometry ◽  
Phase Determination ◽  
And Inversion

scholarly journals Novel method of phase determination in neutron reflectometry using reference layer

2019 ◽  
Vol 1389 ◽  
pp. 012153 ◽  
Author(s):  
E S Nikova ◽  
Yu A Salamatov ◽  
E A Kravtsov ◽  
V V Ustinov
Keyword(s):  
Neutron Reflectometry ◽  
Phase Determination ◽  
Novel Method ◽  
Reference Layer

Direct phase determination in electron crystallography: small organic molecules

1992 ◽  
Vol 50 (2) ◽  
pp. 1166-1167
Author(s):  
Douglas L. Dorset
Keyword(s):  
Organic Molecules ◽  
Data Sets ◽  
Temperature Structure ◽  
3D Analysis ◽  
Intensity Data ◽  
Electron Crystallography ◽  
Phase Determination ◽  
Measured Intensity ◽  
3D Data

The quantitative use of electron diffraction intensity data for the determination of crystal structures represents the pioneering achievement in the electron crystallography of organic molecules, an effort largely begun by B. K. Vainshtein and his co-workers. However, despite numerous representative structure analyses yielding results consistent with X-ray determination, this entire effort was viewed with considerable mistrust by many crystallographers. This was no doubt due to the rather high crystallographic R-factors reported for some structures and, more importantly, the failure to convince many skeptics that the measured intensity data were adequate for ab initio structure determinations.We have recently demonstrated the utility of these data sets for structure analyses by direct phase determination based on the probabilistic estimate of three- and four-phase structure invariant sums. Examples include the structure of diketopiperazine using Vainshtein's 3D data, a similar 3D analysis of the room temperature structure of thiourea, and a zonal determination of the urea structure, the latter also based on data collected by the Moscow group.

Experimental Demonstration of 1200V IGBT Module for a Magnetic Energy Recovery Switch Application

2008 ◽  
Vol 128 (4) ◽  
pp. 677-682 ◽  
Author(s):  
Taku Takaku ◽  
Noriyuki Iwamuro ◽  
Yoshiyuki Uchida ◽  
Ryuichi Shimada
Keyword(s):  
Energy Recovery ◽  
Magnetic Energy ◽  
Experimental Demonstration ◽  
Igbt Module

Recognition of Birds in Blurred and Illumination Images by Local Features

2017 ◽  
Vol 7 (7) ◽  
pp. 243
Author(s):  
Suresha .M ◽  
. Sandeep
Keyword(s):  
Computer Vision ◽  
Time Complexity ◽  
Feature Detection ◽  
Feature Matching ◽  
Fast Algorithms ◽  
Local Features ◽  
Experimental Demonstration ◽  
Harris Corner ◽  
Blurred Image ◽  
Blurred Images

Local features are of great importance in computer vision. It performs feature detection and feature matching are two important tasks. In this paper concentrates on the problem of recognition of birds using local features. Investigation summarizes the local features SURF, FAST and HARRIS against blurred and illumination images. FAST and Harris corner algorithm have given less accuracy for blurred images. The SURF algorithm gives best result for blurred image because its identify strongest local features and time complexity is less and experimental demonstration shows that SURF algorithm is robust for blurred images and the FAST algorithms is suitable for images with illumination.

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