The position and pose of the end 1T2R mechanism with one translational motion two rotational degrees freedom in operation space is nonlinear mapping servo motor action joint space, postures states can only be obtained through complex modeling calculation. Because this, key problem to solved urgently realize real-time accurate limit protection function this kind structure machine tool, reduce pr...

The probability of faulty synchronization a generator is very small, but not impossible. main cause due to wiring errors caused during maintenance or commissioning when voltage transformer and synchronizing equipment are connected reconnected wrongly. Faulty synchronizations synchronous generators overcurrent high electromagnetic torque values that can severely damage, only the their selves, al...

Abstract Considering that no current limiting inductances (CLIs) are installed at the end of DC line in flexible distribution grid, protections relying on boundary longer applicable. To overcome this problem, paper proposes a single‐ended protection method independent boundary. Firstly, Peterson equivalent circuit is applied to analyze amplitude‐time ratio initial voltage travelling wave (ARIVT...

Digital text is the most frequent interchange form of data that could hold sensitive information such as audit firms, banks, and educational institutes. This needs to preserve its integrity originality so it not only secure but also helps identify ownership documents. paper presents a novel invisible digital watermarking approach for exchange documents over internet. serves from last decade det...