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Cryptographic Hash function is perhaps the most versatile cryptographic algorithm, it is widely used in a variety of security applications and network protocols. It has been widely used mainly in the digital signature, authentication and other fields. MD5 algorithm is one of the Hash function algorithm. MD5 algorithm is a typical representative of the MD structure and is a typical representative of...
In this paper, fuzzy control theory technology and DSP technology are appLied to colLiery gas detection system. An intelLigent gas density fuzzy controller is designed, which improves the performance of this system in intelLigence, automation, precaution and fight natural calamities, production safety, control accuracy and safe reLiabiLity.
This paper presents the fabrication of piezoelectric micro-machined ultrasonic transducers (PMUT) used in acoustic location field in the air. The transducer consists of piezoelectric ZnO thin film and the membrane made of Si3N4. The calculation of the vibration mode of PMUT has been made by the FEM method. Experiment results indicate the resonant frequency of the PMUT is 43.7 kHz. The initial results...
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