An experimental study of drive-by single channel time reversal using scaled targets and clutter

2012 ◽  
Vol 132 (3) ◽  
pp. 2082-2082
Author(s):  
Ahmad T. Abawi ◽  
Ivars Kirsteins ◽  
Daniel Plotnick
Keyword(s):  
Experimental Study ◽  
Time Reversal ◽  
Single Channel

Experimental Study for Data Validation Regarding the Flow Movement in Natural Convection in an Asymmetrical Heated Vertical Channel

2014 ◽  
Vol 659 ◽  
pp. 313-318 ◽  
Author(s):  
Andrei Burlacu ◽  
Vasilică Ciocan ◽  
Marina Verdeș ◽  
Cătălin George Popovici ◽  
Marius Costel Balan ◽  
...  
Keyword(s):  
Experimental Study ◽  
Natural Convection ◽  
Particle Image ◽  
Single Channel ◽  
Size Variation ◽  
Vertical Channel ◽  
Heat Output ◽  
Piv Method ◽  
Physical Boundary ◽  
Zone Temperature

The present paper presents an experimental study, regarding the dynamics of movement in natural convection in an asymmetrically heated vertical channel. The channel was immersed in a tank filled with water at a temperature of 15 °C. The study focuses on one hand, on the radiated heat output from the heating plate, and on the other hand, on the thermo-physical boundary conditions from the inlet and the outlet of the channel. These aspects give great problems in natural convection if limited to a single channel as a field of study. The experimental study was conducted to validate numerical results, in similar conditions. The size variation of the recirculating zone, temperature and speed in the channel were analyzed through the PIV method (Particle Image Velocymetry) using the equipment provided by Dantec Dynamics and the analysis program "Dynamic Studio".

Experimental study of single channel 100 Gbit/s PAM4 transmission over 40 km using 17 GHz EML and APD at O band

2018 ◽  
Vol 45 ◽  
pp. 411-414 ◽  
Author(s):  
Jiahao Huo ◽  
Xian Zhou ◽  
Kangping Zhong ◽  
Jiajing Tu ◽  
Wei Huangfu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Single Channel

Identification of a resonant target buried in sediment using iterative, single channel, time reversal

2007 ◽  
Vol 122 (5) ◽  
pp. 3023
Author(s):  
Zachary J. Waters ◽  
R. Glynn Holt ◽  
Ronald A. Roy ◽  
Benjamin R. Dzikowicz
Keyword(s):  
Time Reversal ◽  
Single Channel

Acoustic communications in an enclosure using single-channel time-reversal acoustics

2002 ◽  
Vol 80 (4) ◽  
pp. 694-696 ◽  
Author(s):  
M. G. Heinemann ◽  
A. Larraza ◽  
K. B. Smith
Keyword(s):  
Time Reversal ◽  
Single Channel ◽  
Acoustic Communications ◽  
Time Reversal Acoustics

scholarly journals Gastroenteroanastomosis using NOTES-technologies — results of an experimental study

2020 ◽  
Vol 10 (3) ◽  
pp. 275-283
Author(s):  
Aleksandr А. Smirnov ◽  
Alexander V. Chernov ◽  
Asem B. Kargabaeva ◽  
Nadezhda V. Konkina ◽  
Natalya A. Baranova ◽  
...  
Keyword(s):  
Experimental Study ◽  
Histological Analysis ◽  
Single Channel ◽  
Gastric Wall ◽  
Gastrojejunal Anastomosis ◽  
Final Phase ◽  
Laparoscopic Assistance ◽  
Working Out ◽  
Laboratory Models ◽  
Preliminary Phase

Introduction. Transluminal endoscopic surgery performed through natural orifices can reduce the incidence of complications associated with the surgical procedure and the incidence of postoperative complications. The purpose of this study was to determine the feasibility of performing an experimental gastroenteroanastomosis in a live pig model using NOTES. Materials and methods. The experimental study was performed on living laboratory models pigs weighing from 25 to 30 kg. The studys preliminary phase allowed working out the technique using two animals removed from the experiment after its successful completion. The final phase included the implementation of gastrojejunoanastomosis in six animals with subsequent observation. In three animals, the procedure was performed with laparoscopic assistance using a single-channel video gastroscope. In the other three animals, it was performed without laparoscopy using a two-channel video gastroscope. Antibiotic therapy continued for seven days after surgery. The surviving animals were removed from the experiment after four weeks. Patency of the anastomosis was confirmed by repeated endoscopy and histological analysis of tissues. Results. All procedures were completed successfully in six animals (three males and three females). The formation of anastomosis required an average of 133.3 43.8 minutes (range, 80200 minutes). In one animal, bleeding during gastric wall incision was recorded and was stopped by electrocoagulation. One animal died because of an anastomotic leak and peritonitis, confirmed by autopsy. In the five surviving animals, repeated endoscopy demonstrated fully passable anastomoses covered by the mucosa. Conclusion. Gastrojejunal anastomosis using NOTES technology is technically possible but requires additional study.

The detection and characterization of buried resonant targets by iterative, single‐channel time reversal

2008 ◽  
Vol 123 (5) ◽  
pp. 3185-3185
Author(s):  
Ronald A. Roy ◽  
Zachary J. Waters ◽  
Benjamin R. Dzikowicz ◽  
R. Glynn Holt
Keyword(s):  
Time Reversal ◽  
Single Channel

Experimental investigation of bottom target detection by single channel iterative time reversal.

2009 ◽  
Vol 125 (4) ◽  
pp. 2702-2702
Author(s):  
Yingzi Ying ◽  
Shengming Guo ◽  
Bingwen Sun ◽  
Li Ma ◽  
Zhenghua Cai ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Target Detection ◽  
Time Reversal ◽  
Single Channel

Single‐channel time reversal with Lanczos iterations.

2010 ◽  
Vol 127 (3) ◽  
pp. 2013-2013 ◽  
Author(s):  
Zachary J. Waters ◽  
Paul E. Barbone
Keyword(s):  
Time Reversal ◽  
Single Channel
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