PCM/PPK telemetry system is a multinary pulse modulation system.It is commonly used to transmit high-accuracy time information and some express signals.To the i
To guarantee the accuracy of error analysis and evaluate the manufacturing tolerances influence, a numerical error analysis method for parallel kinematic machin
In this work the process of manufacturing a continuously reinforced cast Al matrix composite and its properties are presented.The described technology permits o
In order to solve the issue that existing direct anonymous attestation (DAA) scheme can not operate effectively in different domains, based on the original DAA
Rotating arc horizontal narrow gap welding of quenched & tempered ( Q&T) steel was innovatively performed for solving the bottleneck that the molten pool sagged