Graduation Diploma is valid for only one (1) year in order to take the FDNY computer based. exam (Z-50). Candidates who fail the final examination on the second attempt shall be required to re-. attend the course in its entirety.
Quantum dots (QD) are very small semiconductor particles, only several nanometres in size, so small that their optical and electronic properties differ from those of larger particles. They are a central theme in nanotechnology.
In layman's terms, a quantum state is simply something that encodes the state of a system. The special thing about quantum states is that they allow the system to be in a few states simultaneously; that's called a quantum superposition. The following is an explanation of quantum states that should be comprehensible to anyone with basic knowledge about vectors.