Abstract: Smart contracts executed on blockchains are interactive programs where external actors generate events that trigger function invocations. Events can be emitted by participants asynchronously ...

Abstract: QCM (Quartz Crystal Microbalance) multi-sensors are widely used in biosensors and chemical sensors. The sensing film materials coated on their electrodes will determine the characteristic of ...

Epson EcoTank printers use ink in bottles, and they say you’ll get two years’ worth of ink with your printer, but the printers are more expensive than the kind that use ink from cartridges. Jim ...

The USB port is something most of us take for granted. You plug in a phone, keyboard, or one of the many useful USB gadgets out there, and it just works. But not too long ago, this was basically ...