Search results for Physical+sciences+%3e+Transportation

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Wireless corrosion detection sensors
ProblemCorrosion of steel reinforcements in concrete structures present one of the most important durability problems facing bridges and related infrastructures. Monitoring this corrosion is difficult since the embedded steel is not visible to the naked eye. Detection techniques, such as acoustic, ultrasonic and radar, have proved to be limited in this...
Damage detection of railway tracks based on vibration measurements by moving laser sensors
BackgroundRailway transportation plays a key role in mass transportation of products and passengers. One of the biggest problems that endanger safety and operation of railways is the fractural cracks of the railway tracks. Even though ultrasonic measurement techniques have been extensively used for detection of such defects, these methods may show inefficiencies....