The disclosure relates to metal organic frameworks or isoreticular metal organic frameworks, methods of production thereof, and methods of use thereof. The cell balance device includes: three terminals to be connected to secondary batteries; one terminal to be connected to a voltage hold device; three switches provided between the three terminals and the one terminal; and a receiving terminal and a transmitting terminal for a synchronization signal. a sealed container to maintain color and freshness while retarding bacterial growth. On the other hand, when N\u2267Na, driving for low torque is selected and then paper transport in a B region after the A region has passed is performed with a low torque. As such, the heat built-up within the computer system can be effectively dissipated so as to prolong the service life of the computer. At least one short posting index is generated.