Abstract: The invention provides a method of preparing a new recombinant antibacterial polypeptide medicine, which primarily relates to liquid culture medium formula suitable for large-scale production of the antibacterial polypeptide, as well as optimization of the enlarged culture parameters.

Abstract: The invention provides a method of preparing a new recombinant antibacterial polypeptide medicine, which primarily relates to liquid culture medium formula suitable for large-scale production of the antibacterial polypeptide, as well as optimization of the enlarged culture parameters.

Abstract: This is a method and system of carrying out remote control and communication through lines of periodical information, especially through AC power lines. It uses the periodical information of the line itself, and establishes in advance a communication protocol. It defines one or more or none signals transmitted at predetermined phases and intervals of the periodical information as one or more determinate information. At any end of the periodical information lines, the transmitting circuit transmits signals of relatively average transmitting energy during a period of time. At the other end, the receiving circuit opens or equivalently opens a receiving signal selective pass gate at phases or intervals where the receiving signals are likely to occur in accordance with the preset rules to accomplish signal receiving. Thus, it increases the anti-interference ability of the circuit, and may be widely used in situations of data communication through AC power lines.