Experimental comparison of two Doppler-free detection methods with a new technique: Differential saturation spectroscopy

1985 ◽  
Vol 55 (2) ◽  
pp. 105-109 ◽  
Author(s):  
J.J.L. Mulders ◽  
L.W.G. Steenhuysen
Electronics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 91 ◽  
Author(s):  
Raheleh Jafari ◽  
Sina Razvarz ◽  
Cristóbal Vargas-Jarillo ◽  
Alexander Gegov

Currently numerous approaches with various applicability have been generated in order to detect damage in pipe networks. Pipeline faults such as leaks and partial or complete blockages usually create serious problems for engineers. The model-based leak, as well as block detection methods for the pipeline systems gets more and more attention. Among these model-based methods, the state observer and state feedback based methods are usually used. While the observability, as well as controllability, are taken to be the prerequisites for utilizing these techniques. In this work, a new technique based on the extended Kalman filter observer is proposed in order to detect and locate the blockage in the pipeline. Furthermore, the analysis of observability and controllability in the pipe networks is investigated. Important theorems are given for testing the observability as well as controllability of the pipeline system.


2018 ◽  
Vol 48 ◽  
pp. 1860105
Author(s):  
Steven Dazeley ◽  
Adam Bernstein ◽  
Tim Classen ◽  
Edward Reedy ◽  
Dan Hellfeld ◽  
...  

The need for sensitive new reactor antineutrino detection methods is discussed. Two new methods are proposed, including a new technique suited for near field detectors unshielded from cosmic ray backgrounds and a new directional antineutrino detection technique suitable for long distance detectors.


2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S543-S543
Author(s):  
Satoshi Kimura ◽  
Keigo Matsumoto ◽  
Yoshio Imahori ◽  
Katsuyoshi Mineura ◽  
Toshiyuki Itoh

2009 ◽  
Vol 56 (S 01) ◽  
Author(s):  
J Bickenbach ◽  
R Rossaint ◽  
R Autschbach ◽  
R Dembinski

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