We stumbled upon a 170-foot deep hole in the woods that led us to a hidden chamber filled with giant crystals. In this video, we explore the depths of Pettyjohn Cave, uncovering massive crystal ...

Multi-channel Quartz Crystal Microbalance (MQCM) devices have many promising potential applications as sensors in biological engineering. In this work, a finite element modeling of the Multi-channel ...

In this paper the problem of reducing the readiness time of precision oven-controlled crystal oscillators with distributed piezoelectric element heater is considered. This problem has been studied by ...