Abstract: The present disclosure relates to an automatic detecting device for detecting flaws on a surface of a camshaft in the field of detecting device. The automatic detecting device includes a framework, which is provided with a working platform, an elevator mechanism, a first rotating elevator mechanism and a second rotating elevator mechanism. The working platform is rotatably connected with the rotating platform. The working platform is provided with a first working position; a second working position, a third working position and a fourth working position. The rotating platform is provided with a plurality of locating members. The locating member is configured for placing a test piece. The working platform is provided with an overturning mechanism, a first visual module and a second visual module.

Abstract: The present invention is drawn toward luminogens and chemical compositions comprising a target recognition motif, a hydrophilic moiety, a linking moiety, and at least one luminogen. Additionally presented are methods of: assessing the conversion of a prodrug into its active form, assessing the therapeutic efficacy of a prodrug, detecting glutathione in a biological sample, detecting alkaline phosphatase in a sample, and conducting fluorescence imaging or magnetic resonance imaging with the use of luminogen-containing compositions.