In recent 20 years,because of the finding of many large-superlarge gold deposits,we renew the theories for prospecting and gain many things and conceptions.
Axial stiffness of ball screws has great effects on accuracy of positioning, dynamic characteristicand transmission efficiency. Axial contact stiffness modeling
The pilotless frame synchronization approach and implementations of LDPC code are the crucialissue of LDPC decoder. The Maximum-A-Posteriori probability (MAP) dec