scholarly journals Comparative Study of Effectiveness between Color Blindness Test Plate and Traffic Light Simulator for Thai Driving License Test: Pilot Study

2021 ◽  
Vol 16 (2) ◽  
Author(s):  
Sakchai Vongkittirux ◽  
Pubet Niumpradit ◽  
Papavarin Sirikietsoong ◽  
Nonthapan Narong
Keyword(s):  
Pilot Study ◽  
Comparative Study ◽  
Color Blindness ◽  
Traffic Light ◽  
Test Plate ◽  
Driving License

scholarly journals Retrograde urethrosonography with SonoVue in strictures of the male urethra: a pilot study

2020 ◽  
Vol 22 (4) ◽  
pp. 424
Author(s):  
Mihai Domnutiu Suciu ◽  
Nucu Alexandru Marica ◽  
Alexandru Florin Badea ◽  
Iulia Laura Gavrila ◽  
Radu Ion Badea
Keyword(s):  
Pilot Study ◽  
Comparative Study ◽  
Real Time ◽  
Urethral Stricture ◽  
Adult Male ◽  
Radiological Examination ◽  
Male Urethra ◽  
Urethral Strictures ◽  
Retrograde Urethrography ◽  
Contrast Enhanced

Aim: To evaluate the effectiveness of SonoVue urethrosonography in diagnosing the adult male anterior urethral strictures pathology in comparison with retrograde urethrography.Material and method: We standardised the method and performed a comparative study evaluating the diagnosis of urethral strictures using retrograde urethrography and retrograde ultrasonographic exploration with SonoVue on 6 male patients.Results: In all patients, the existence of urethral stricture, localization and its extension were confirmed. Contrast-enhanced ultrasonographic exploration brought additional categories of information: the degree of spongiofibrosis, the elasticity of the urethral walls and the presence of urethral lithiasis. There were no periprocedural incidents.Conclusion: This pilot study demonstrates the feasibility and innocuity of urethral ultrasound with SonoVue. Real-time ultrasound exploration highlights aspects that are not seen in radiological examination, so the method can be complementary or alternative to this procedure. 

scholarly journals Comparative Study of Fiber Bragg Gratings and Fiber Polarimetric Sensors for Structural Health Monitoring of Carbon Composites

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Massimo Olivero ◽  
Guido Perrone ◽  
Alberto Vallan ◽  
Daniele Tosi
Keyword(s):  
Structural Health Monitoring ◽  
Comparative Study ◽  
Health Monitoring ◽  
Smart Materials ◽  
Vibration Monitoring ◽  
Carbon Fiber Composites ◽  
Test Plate ◽  
Structural Health ◽  
Dynamic Excitation ◽  
Cheap Alternative

A comparative study is presented between Bragg grating (FBG) and polarimetric sensors (PS), two of the most promising fiber optic sensing techniques for the structural health monitoring of smart materials based on carbon fiber composites. The paper describes the realization of a test plate equipped with both types of sensors and reports the characterization under static and dynamic conditions, highlighting pros and cons of both technologies. The FBG setup achieves 1.15 ± 0.0016 pm/kg static load response and reproduces dynamic excitation with 0.1% frequency uncertainty; the PS system exhibits a sensitivity of 1.74 ± 0.001 mV/kg and reproduces dynamic excitation with 0.5% frequency uncertainty. It is shown that the PS technology is a good and cheap alternative to FBG for vibration-monitoring of small structures at high frequency.

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