This post introduces the disassembly and evaluation of the Delixi infrared temperature measuring gun.When I signed up, I thought it was just an ordinary temperature gun with a temperature range of -20
Temperature measurement is required in many places. When designing a temperature telemetry system, it is usually necessary to use a battery-powered, extremely low-power module. There are many traditio
Eight practical ways to solve Spark data skew
What is data skew?
For distributed big data systems such as Spark/Hadoop, the large amount of data is not scary; what is scary is data skew.
For dis
I saw on the Internet that "after the battery is disconnected, the power of the mobile phone is provided by the charger. At this time, the battery is in a dormant state, neither charging nor dischargi