摘要:
An activated carbon-metal oxide matrix is disclosed. The activated carbon-metal oxide matrix may by obtained by a method including the steps of: preoxidizing a carbon material, grinding the preoxidized carbon material; mixing the ground preoxidized material with a metal oxide to form a carbon mixture; extruding the carbon mixture; carbonizing and activating the extrudate. The activated carbon-metal oxide matrix may be used to remove odorous compounds, acidic gases, and volatile organic compounds from a gas.
摘要:
A double key protection method is adapted to computer peripherals and architecture for the same. The present invention equips at least one microprocessor and one storage unit on a computer peripheral, and executes a client program in the computer. A first key is used to check whether the computer peripheral is copyrighted and a second key is used to check whether the client program is copyrighted. The software designer should set a first key value and store the first key value in a storage unit, and then indicate a second key value. Then the microprocessor executes a key procedure and produces a first cyclic redundancy check and programs the second key value and the first cyclic redundancy check into the client program. When operating the client program, the client program can be checked for copyright by checking the first cyclic redundancy check.