Design Development and Experimental Validation of an Underwater Acoustic Pinger System

2017 ◽  
Author(s):  
Siva Ram Krishna Vadali ◽  
Samarjeet Das
Keyword(s):  
Experimental Validation ◽  
Design Development ◽  
Underwater Acoustic

Design development and experimental validation of an EBG matrix antenna for tracking application

2015 ◽  
Vol 9 (1) ◽  
pp. 231-239 ◽  
Author(s):  
Hussein Abou Taam ◽  
Georges Zakka El Nashef ◽  
Eric Arnaud ◽  
Nicolas Chevalier ◽  
Bertrand Lenoir ◽  
...  
Keyword(s):  
Mutual Coupling ◽  
Experimental Validation ◽  
Beam Steering ◽  
Theoretical Aspect ◽  
High Gain ◽  
Beam Forming ◽  
Design Development ◽  
Surface Approach ◽  
International Patent ◽  
The Subject

Today's increase of functions, improvement of performances, and cost reductions required on an agile electronically scanned antenna, drive researchers to develop an innovative antennas’ concept in order to deal with the proposed challenge. In this context, this article describes and demonstrates an experimental prototype to show the reliability and efficiency of the electromagnetic band gap(EBG)matrix antenna theoretical aspect, for beam forming and beam steering applications. The originality of this work is the antenna itself which constitutes the subject of an accepted national and international patent. In fact, the proposed antenna is based on the equivalent radiating surface approach and used special EBG antennas called “pixels” to overcome some of the array approach defects. The antenna has demonstrated different electromagnetic behaviors, such as low mutual coupling, high gain preservation for high scanning angles values, etc.

scholarly journals Design and Experimental Validation of a USBL Underwater Acoustic Positioning System

Sensors ◽  
2016 ◽  
Vol 16 (9) ◽  
pp. 1491 ◽  
Author(s):  
Joel Reis ◽  
Marco Morgado ◽  
Pedro Batista ◽  
Paulo Oliveira ◽  
Carlos Silvestre
Keyword(s):  
Experimental Validation ◽  
Positioning System ◽  
Underwater Acoustic ◽  
Acoustic Positioning

Performance Enhancements to the Industrial Avon Gas Turbine

2007 ◽  
Author(s):  
Jerry Blackburn ◽  
Gary Frendt ◽  
Martine Gagne´ ◽  
Jean-Daniel Genest ◽  
Toby Kohler ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Experimental Validation ◽  
Heat Rate ◽  
Performance Data ◽  
Design Development ◽  
Validation Data ◽  
Design Changes ◽  
Operational Characteristics ◽  
Significant Performance ◽  
Development And Validation

This paper summarises the design, development and validation work of a package of modifications made to the well-established Avon aero derivative gas turbine. Modern turbine aerofoil design technologies were applied to the Avon hot end section, resulting in significant performance enhancements of the engine in terms of heat rate and power. A summary of the key design changes is made and the experimental validation data is reviewed. The implications of the design changes to the engine operational characteristics and component lifing implications where applicable are also reviewed. Key performance data is also presented in the paper.

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