scholarly journals Development of a low noise preamplifier for the detection and position determination of single electrons in a Cerenkov ring imaging detector by charge division

1988 ◽  
Vol 35 (1) ◽  
pp. 231-236 ◽  
Author(s):  
E. Spencer ◽  
P. Coyle ◽  
D. Williams ◽  
T. Bienz ◽  
F. Bird ◽  
...  
Keyword(s):  
Low Noise ◽  
Position Determination ◽  
Single Electrons ◽  
Imaging Detector ◽  
Low Noise Preamplifier ◽  
Ring Imaging

Three-point-support method based on position determination of supports and wafers to eliminate gravity-induced deflection of wafers

2016 ◽  
Vol 46 ◽  
pp. 339-348 ◽  
Author(s):  
Haijun Liu ◽  
Xianglong Zhu ◽  
Renke Kang ◽  
Zhigang Dong ◽  
Xiuyi Chen
Keyword(s):  
Position Determination ◽  
Point Support

Solutions to the Vector Tetrahedron Equation

1965 ◽  
Vol 87 (2) ◽  
pp. 228-234 ◽  
Author(s):  
Milton A. Chace
Keyword(s):  
Closed Form ◽  
Digital Computer ◽  
Three Dimensional ◽  
Dimensional Vector ◽  
Spherical Coordinates ◽  
Tetrahedron Equation ◽  
Position Determination ◽  
Closed Form Solutions

A set of nine closed-form solutions are presented to the single, three-dimensional vector tetrahedron equation, sum of vectors equals zero. The set represents all possible combinations of unknown spherical coordinates among the vectors, assuming the coordinates are functionally independent. Optimum use is made of symmetry. The solutions are interpretable and can be evaluated reliably by digital computer in milliseconds. They have been successfully applied to position determination of many three-dimensional mechanisms.

scholarly journals Progress report on the SLD cerenkov ring imaging detector

1987 ◽  
Vol 34 (1) ◽  
pp. 499-503 ◽  
Author(s):  
V. Ashford ◽  
T. Bienz ◽  
F. Bird ◽  
G. Crawford ◽  
M. Gaillard ◽  
...  
Keyword(s):  
Progress Report ◽  
Imaging Detector ◽  
Ring Imaging

Automated Determination of the Position of Ships by Satellites

1967 ◽  
Vol 20 (03) ◽  
pp. 281-285
Author(s):  
H. C. Freiesleben
Keyword(s):  
Celestial Body ◽  
World Wide ◽  
Artificial Satellites ◽  
Radio Waves ◽  
The Moon ◽  
Position Determination ◽  
The Earth ◽  
Navigational Aids ◽  
Automated Determination

It has recently been suggested that 24-hour satellites might be used as navigational aids. To what category of position determination aids should these be assigned ? Is a satellite of this kind as it were a landmark, because, at least in theory, it remains fixed over the same point on the Earth's surface, in which case it should be classified under land-based navigation aids ? Is it a celestial body, although only one tenth as far from the Earth as the Moon ? If so, it is an astronomical navigation aid. Or is it a radio aid ? After all, its use for position determination depends on radio waves. In this paper I shall favour this last view. For automation is most feasible when an object of observation can be manipulated. This is easiest with radio aids, but it is, of course, impossible with natural stars.At present artificial satellites have the advantage over all other radio aids of world-wide coverage.

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