SMS (Short Message Service) provides direct and instant communication among mobile phone users and has become an extremely popular communication tool nowadays. However, during the transmission of SMS, the message could be logged by the service provider or eavesdropped by a third party. An SMS mess.....
[更多]
During the turn-on and turn-off switching processes, power converters have to withstand high voltage and current, leading to high switching losses and stresses. The invention is a passive lossless snubber cell with minimum stress and wide soft-switching range. The energy reset / recirculation proces.....
[更多]
USB Encryption Token is a strong encryption device for protecting data stored in portable storage media which include USB flash drives and memory cards. Simply plug the USB Encryption Token into a computer, it will start searching for all USB flash drives or memory cards and performing encryption au.....
[更多]
Flash memories have attracted considerable attention as promising next-generation nonvolatile memories owing to their higher chip density, multi-bit per cell storage property and compatibility with the current complementary metal–oxide–semiconductor (CMOS) process. Flash memories have been fabricate.....
[更多]
The thin film transistors (TFT) have been built on patterned flexible bilayer acid/metal oxide dielectrics polymer substrate by solution process. Based on this TFT technology, RFID tags and amine sensors have been fabricated with low cost using inexpensive molecular materials. Fabrication through so.....
[更多]
| |< <- | [345] [346] [347] [348] [349] [350] [351] [352] [353] [354] [355] | -> >| |
