Abstract: Provided is a use of usnic acid or a salt of usnic acid or a formulation thereof in the preparation of anti-avian coccidiosis drugs or feed additives. Also provided are anti-avian coccidiosis drugs and feed additives comprising usnic acid or a salt of usnic acid or a formulation thereof. Both the use of usnic acid or a salt of usnic acid or a formulation thereof in the preparation of anti-avian coccidiosis drugs or feed additives and anti-avian coccidiosis drugs and feed additives comprising usnic acid or a salt of usnic acid or a formulation thereof provide a new way for treating and preventing avian coccidiosis. The addition of usnea or usnic acid or a salt of usnic acid or a formulation thereof to feedstuff may realize effective anti-avian coccidiosis.

Abstract: A transmission device for performing information communication with one or more reception devices includes a communication history information storage unit configured to store communication history information in which a communication parameter for performing the information communication is associated with a deterioration rate that is a value based on radio waves transmitted using the communication parameter when information is transmitted to the reception device and radio waves received from the reception device, a calculation unit configured to calculate the communication parameter when communication with the reception device is performed on the basis of the stored communication history information, and an output unit configured to output the calculated communication parameter.

Abstract: Provided is a use of usnic acid or a salt of usnic acid or a formulation thereof in the preparation of anti-avian coccidiosis drugs or feed additives. Also provided are anti-avian coccidiosis drugs and feed additives comprising usnic acid or a salt of usnic acid or a formulation thereof. Both the use of usnic acid or a salt of usnic acid or a formulation thereof in the preparation of anti-avian coccidiosis drugs or feed additives and anti-avian coccidiosis drugs and feed additives comprising usnic acid or a salt of usnic acid or a formulation thereof provide a new way for treating and preventing avian coccidiosis. The addition of Usnea or usnic acid or a salt of usnic acid or a formulation thereof to feedstuff may realize effective anti-avian coccidiosis.

Abstract: The present invention discloses a method for rendezvous of unlicensed users having multiple transceivers in cognitive radio networks, including four stages: an initial stage: setting an initial communication environment; a stage of selecting a rendezvous method: selecting a method for generating a channel hopping sequence according to the quantity of transceivers; a stage of generating a channel hopping sequence: using a single-transceiver rendezvous method or a multiple-transceiver rendezvous method to generate a channel hopping sequence; and a rendezvous stage: running, by an unlicensed user, on a corresponding channel and attempting to rendezvous with a destination node of the unlicensed user, where if rendezvous is achieved, the rendezvous process ends; and if rendezvous is not achieved, the rendezvous process continues until rendezvous is achieved.

Abstract: The present invention discloses a method for rendezvous of unlicensed users having multiple transceivers in cognitive radio networks, including four stages: an initial stage: setting an initial communication environment; a stage of selecting a rendezvous method: selecting a method for generating a channel hopping sequence according to the quantity of transceivers; a stage of generating a channel hopping sequence: using a single-transceiver rendezvous method or a multiple-transceiver rendezvous method to generate a channel hopping sequence; and a rendezvous stage: running, by an unlicensed user, on a corresponding channel and attempting to rendezvous with a destination node of the unlicensed user, where if rendezvous is achieved, the rendezvous process ends; and if rendezvous is not achieved, the rendezvous process continues until rendezvous is achieved.