A small number of RBCs are normally present in urine and usually result in a negative chemical test. An increased amount of hemoglobin and/or increased number of RBCs are detected as a positive chemical test result.
gigahertz. n, pl-hertz. 1. (Units) a unit of frequency equal to 10 9 hertz. Symbol: GHz.
What is ZigBee?ZigBee is a technology of data transfer in wireless networks. It has low energy consumption and is designed for multi-channel control systems, alarm systems, and lighting control.hat is ZigBee?ZigBee is a technology of data transfer in wireless networks. It has low energy consumption and is designed for multi-channel control systems, alarm systems, and lighting control.