Abstract: A fluid supply apparatus for inducing cavitation and Coanda effects, includes: a cavitation generator configured to allow an introduced fluid to flow while rotating along a propeller-shaped wing so as to generate microbubbles in the fluid; and a Coanda generator disposed in front of the cavitation generator and having a plurality of Coanda generating protrusions arranged at regular distances so that, as a fluid passing through the cavitation generator to contain microbubbles passes through a passage between the Coanda generating protrusions, a velocity increases and the pressure decreases, thereby causing a Coanda effect in which the fluid flows along a surface of an object.

Abstract: A Belief Propagation (BP) equalization method and apparatus, a communication device and a storage medium are disclosed. The method may include: splitting a received signal Yc, a channel estimation Hc and a symbol estimation Xc into real parts and imaginary parts to obtain a received signal matrix Y, a channel estimation matrix H and a symbol estimation matrix X (S101); performing orthogonal triangular (QR) decomposition on the channel estimation matrix H to obtain an equivalent received signal Ybp, an equivalent channel R and a noise power ?2 (S102); and performing iteration based on the equivalent received signal Ybp, the equivalent channel R and the noise power ?2 to obtain a position probability of per stream symbol (S103).

Abstract: A power generation system includes at least one generator that generates a medium voltage direct current that has a positive DC voltage output and a negative DC voltage output. The system also provides a medium voltage DC (MVDC) cable system with a positive pole cable and a negative pole cable, wherein the positive pole cable is connected to the positive DC voltage output and the negative pole cable is connected to the negative DC voltage output. A substation is connected to the MVDC cable system and includes at least one DC/DC step-up converter to step-up the medium voltage direct current to a high voltage direct current.

Abstract: Provided are a contactless charging apparatus, a contactless charging battery apparatus, and a contactless charging system including same. According to one embodiment of the present invention, a contactless charging apparatus for charging a contactless charging battery apparatus comprises: a first coil unit including a plurality of coils; a charge control unit for determining a charging power corresponding to the contactless charging battery apparatus; and a power distribution unit for selecting one or more coils from the plurality of coils in accordance with the charging power, wherein the charging power is the power required for charging the contactless charging battery apparatus.

Abstract: A method and apparatus for power management in the communication system, wherein the method for transmitting data from an access point to communication units comprising: assigning, by the access point, a first and a second association identifier in a message, to each of the communication units, to indicate the presence of respective buffered multicast data and unicast data respectively; setting, by the access point, the first association identifier to indicate the corresponding communication unit to receive the buffered multicast data, the second association identifier to indicate the corresponding communication unit to receive the buffered unicast data; and transmitting, by the access point, the message to awake the communication unit corresponding to the set first and/or second association identifier so as to transmit the buffered data thereto.