Non-conventional Detection Techniques

2021 ◽  
pp. 119-137
Author(s):  
Maheshwar Sharon ◽  
Madhuri Sharon
Keyword(s):  
Detection Techniques ◽  
Conventional Detection

scholarly journals Feasibility Studies for Quarkonium Production at a Fixed-Target Experiment Using the LHC Proton and Lead Beams (AFTER@LHC)

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
L. Massacrier ◽  
B. Trzeciak ◽  
F. Fleuret ◽  
C. Hadjidakis ◽  
D. Kikola ◽  
...  
Keyword(s):  
Feasibility Studies ◽  
Fixed Target ◽  
Detection Techniques ◽  
Target Mode ◽  
Quarkonium Production ◽  
Target Experiment ◽  
Conventional Detection ◽  
Fixed Target Experiment

Being used in the fixed-target mode, the multi-TeV LHC proton and lead beams allow for studies of heavy-flavour hadroproduction with unprecedented precision at backward rapidities, far negative Feynman-x, using conventional detection techniques. At the nominal LHC energies, quarkonia can be studied in detail inp+p,p+d, andp+Acollisions atsNN≃115 GeV and in Pb +pand Pb +Acollisions atsNN≃72 GeV with luminosities roughly equivalent to that of the collider mode that is up to 20 fb−1 yr−1inp+pandp+dcollisions, up to 0.6 fb−1 yr−1inp+Acollisions, and up to 10 nb−1 yr−1in Pb +Acollisions. In this paper, we assess the feasibility of such studies by performing fast simulations using the performance of a LHCb-like detector.

scholarly journals A New Grating Thermography for Nondestructive Detection of Cracks in Coatings: Fundamental Principle

Coatings ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 411 ◽  
Author(s):  
Zhi Qu ◽  
Weixu Zhang ◽  
Zhichao Lv ◽  
Feng Wang
Keyword(s):  
Numerical Simulations ◽  
Fundamental Principle ◽  
Sampling Frequency ◽  
The Other ◽  
Simple Experiment ◽  
Thin Coatings ◽  
Detection Techniques ◽  
Subsurface Cracks ◽  
Infrared Cameras ◽  
Conventional Detection

It is important to detect the surface and/or subsurface cracks in coatings because the cracks usually indicate the failure of the system. Conventional detection techniques face two main challenges. One is the locating of the shallow cracks or defects in thin coatings. The other is the detection of the vertical cracks. Conventional infrared thermography can efficiently detect the horizontal cracks or defects. However, when locating the shallow cracks, it requires a high sampling frequency which is unrealistic for most of the infrared cameras. In terms of the vertical cracks, it is invalid since the propagation of its detecting signal is parallel to the cracks and does not interact with them. We introduce a new grating thermography method to overcome the two difficulties. In this paper we mainly illustrate its fundamental principle, which is validated by numerical simulations and a simple experiment. Overall, the principle analysis shows that grating thermography is highly effective in detecting cracks in coatings.

An Ultrasonic Double-Sheet Detection System for Collators

1992 ◽  
Vol 114 (4) ◽  
pp. 489-493 ◽  
Author(s):  
M. Shiraishi ◽  
Y. Fujinuma ◽  
T. Ishikawa ◽  
K. Ishige ◽  
H. Doki
Keyword(s):  
Detection System ◽  
Ultrasonic Method ◽  
Temperature Fluctuations ◽  
Threshold Level ◽  
Ultrasonic Signal ◽  
Air Curtain ◽  
Detection Techniques ◽  
Wide Range ◽  
Gain Adjustment ◽  
Conventional Detection

A new ultrasonic method of detecting double sheets in collators has been developed that overcomes several shortcomings of conventional detection techniques. An air curtain efficiently reduces the ultrasonic detector’s vulnerability to ambient temperature fluctuations. The accuracy of detection is enhanced by utilizing the low-level component of the received ultrasonic signal. A gain adjustment technique is introduced which enables detection for a wide range of paper stocks using a single threshold level.

Detection and Monitoring of Shaft Misalignment in Rotors Using Hilbert Huang Transform

2014 ◽  
Author(s):  
N. Harish Chandra ◽  
A. S. Sekhar
Keyword(s):  
Signal To Noise Ratio ◽  
Angular Acceleration ◽  
Maintenance Cost ◽  
Testing Time ◽  
Element Analysis ◽  
Hilbert Huang Transform ◽  
Detection Techniques ◽  
Shaft Misalignment ◽  
Run Up ◽  
Conventional Detection

Precise detection of the misalignment can reduce maintenance cost, power loss and improve life of rotating machinery. In this paper, Hilbert Huang Transform (HHT) of the run-up response of a rotor is used to detect coupling misalignment. A finite element analysis is carried out to simulate desirable level of possible parallel and angular misalignment. All the best conventional detection techniques like Fourier spectrum analysis, Continuous Wavelet Transform are compared with results obtained by HHT. The effect of Signal to Noise Ratio and angular acceleration on all the methods to detect misalignment is discussed. The comparison of the methods is oriented towards detecting least possible misalignment level. Finally, experiments are performed on a test rotor rig to detect induced misalignment using the proposed method. It is observed that this method is sensitive to low misalignment, and consumes less testing time.

ION DETECTION TECHNIQUES APPLIED TO RYDBERG ATOMS IN EXTERNAL FIELDS

1983 ◽  
Vol 44 (C7) ◽  
pp. C7-193-C7-208 ◽  
Author(s):  
F. Penent ◽  
C. Chardonnet ◽  
D. Delande ◽  
F. Biraben ◽  
J. C. Gay
Keyword(s):  
Rydberg Atoms ◽  
External Fields ◽  
Ion Detection ◽  
Detection Techniques

Comparative quantification of phosphatidylcholine in sea urchins eggs by instrumental TLC with various detection techniques

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
S Ivanova ◽  
I Urakova ◽  
O Pozharitskaya ◽  
A Shikov ◽  
V Makarov
Keyword(s):  
Sea Urchins ◽  
Detection Techniques

Conflict Detection Techniques for Preserving Privacy in Social Media

2018 ◽  
pp. 78-85
Author(s):  
Fulpagare Priya K. ◽  
Nitin N. Patil
Keyword(s):  
Social Media ◽  
Privacy Management ◽  
Crucial Importance ◽  
Network Integration ◽  
Critical Problem ◽  
Detection Techniques ◽  
Privacy Preferences ◽  
Content Sharing ◽  
Privacy Settings ◽  
Relationship Network

Social Network is an emerging e-service for Content Sharing Sites (CSS). It is an emerging service which provides reliable communication. Some users over CSS affect user’s privacy on their personal contents, where some users keep on sending annoying comments and messages by taking advantage of the user’s inherent trust in their relationship network. Integration of multiple user’s privacy preferences is very difficult task, because privacy preferences may create conflict. The techniques to resolve conflicts are essentially required. Moreover, these methods need to consider how users would actually reach an agreement about a solution to the conflict in order to offer solutions acceptable by all of the concerned users. The first mechanism to resolve conflicts for multi-party privacy management in social media that is able to adapt to different situations by displaying the enterprises that users make to reach a result to the conflicts. Billions of items that are uploaded to social media are co-owned by multiple users. Only the user that uploads the item is allowed to set its privacy settings (i.e. who can access the item). This is a critical problem as users’ privacy preferences for co-owned items can conflict. Multi-party privacy management is therefore of crucial importance for users to appropriately reserve their privacy in social media.

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