Compositional Balance Analysis: An Elegant Method of Geochemical Pattern Recognition and Anomaly Mapping for Mineral Exploration

2019 ◽  
Vol 28 (4) ◽  
pp. 1269-1283 ◽  
Author(s):  
Yue Liu ◽  
Emmanuel John M. Carranza ◽  
Kefa Zhou ◽  
Qinglin Xia
Keyword(s):  
Pattern Recognition ◽  
Mineral Exploration ◽  
Elegant Method ◽  
Geochemical Pattern ◽  
Balance Analysis

Geochemical pattern recognition through matrix decomposition

2019 ◽  
Vol 104 ◽  
pp. 670-685 ◽  
Author(s):  
Hamid Zekri ◽  
Ahmad Reza Mokhtari ◽  
David R. Cohen
Keyword(s):  
Pattern Recognition ◽  
Matrix Decomposition ◽  
Geochemical Pattern

The application of geochemical pattern recognition to regional prospecting: A case study of the Sanandaj–Sirjan metallogenic zone, Iran

2011 ◽  
Vol 108 (3) ◽  
pp. 183-195 ◽  
Author(s):  
Seyed Ahmad Meshkani ◽  
Behzad Mehrabi ◽  
Abdolmajid Yaghubpur ◽  
Younes Fadakar Alghalandis
Keyword(s):  
Pattern Recognition ◽  
Geochemical Pattern ◽  
Metallogenic Zone

Regional geochemical pattern recognition with multivariate correspondence cluster analysis in the Ravar area, Iran

2010 ◽  
Vol 119 (4) ◽  
pp. 220-226 ◽  
Author(s):  
Y. Ghanbari ◽  
A. Hezarkhani ◽  
M. Ataei ◽  
K. Pazand
Keyword(s):  
Cluster Analysis ◽  
Pattern Recognition ◽  
Geochemical Pattern

Semi-hierarchical correspondence cluster analysis and regional geochemical pattern recognition

2007 ◽  
Vol 93 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Hongjin Ji ◽  
Daoming Zeng ◽  
Yanxiang Shi ◽  
Yangang Wu ◽  
Xisheng Wu
Keyword(s):  
Cluster Analysis ◽  
Pattern Recognition ◽  
Geochemical Pattern

A Device for Magnification Measurement

1972 ◽  
Vol 30 ◽  
pp. 622-623
Author(s):  
J.A. Eades ◽  
A. van Dun
Keyword(s):  
Electron Microscope ◽  
Small Displacement ◽  
Private Communication ◽  
Piezoelectric Crystal ◽  
Double Exposure ◽  
Standard Methods ◽  
Elegant Method ◽  
The Right ◽  
Piezo Electric

The measurement of magnification in the electron microscope is always troublesome especially when a goniometer stage is in use, since there can be wide variations from calibrated values. One elegant method (L.M.Brown, private communication) of avoiding the difficulties of standard methods would be to fit a device which displaces the specimen a small but known distance and recording the displacement by a double exposure. Such a device would obviate the need for changing the specimen and guarantee that the magnification was measured under precisely the conditions used.Such a small displacement could be produced by any suitable transducer mounted in one of the specimen translation mechanisms. In the present case a piezoelectric crystal was used. Modern synthetic piezo electric ceramics readily give reproducible displacements in the right range for quite modest voltages (for example: Joyce and Wilson, 1969).

Software pattern recognition applied to nanodiffraction patterns from a STEM instrument

1986 ◽  
Vol 44 ◽  
pp. 694-695
Author(s):  
G.Y. Fan ◽  
J.M. Cowley
Keyword(s):  
Image Processing ◽  
Pattern Recognition ◽  
Computer Software ◽  
Processing System ◽  
Light Level ◽  
Host Computer ◽  
Low Light ◽  
Image Processing System ◽  
Recent Developments ◽  
On Line

In recent developments, the ASU HB5 has been modified so that the timing, positioning, and scanning of the finely focused electron probe can be entirely controlled by a host computer. This made the asynchronized handshake possible between the HB5 STEM and the image processing system which consists of host computer (PDP 11/34), DeAnza image processor (IP 5000) which is interfaced with a low-light level TV camera, array processor (AP 400) and various peripheral devices. This greatly facilitates the pattern recognition technique initiated by Monosmith and Cowley. Software called NANHB5 is under development which, instead of employing a set of photo-diodes to detect strong spots on a TV screen, uses various software techniques including on-line fast Fourier transform (FFT) to recognize patterns of greater complexity, taking advantage of the sophistication of our image processing system and the flexibility of computer software.

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