Basic study on crack inspection technique using vibro-thermography

In recent study, active thermography has reached a high status as an easy and speedy defects inspection method in a NDT field.This paper newly proposes a non-disassembly and non-contact NDT method using a Vibro-Thermography for detecting and evaluating of fatigue cracks at neck parts of Toning conditioner the conveyance roll in the steel making pla

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Passenger Ticket Pricing Strategy and Clearing System Design for Rail Transit with Multiple Operating Entities and Multiple System Modes in Metropolitan Area

Objective Metropolitan area rail transit lines with different operating entities and different system modes differ in passenger capacity division and operating cost verification, and there is a need for differentiated pricing.In order to promote the integration of four networks (mainline railways, intercity railways, suburban railways, and urban ra

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