Abstract: A method and a base station are disclosed for multi-user multiple input multiple output (MU-MIMO). According to an embodiment, a base station obtains historical scheduling characteristic information. The base station reserves resources for MU-MIMO users based at least on the historical scheduling characteristic information. The base station allocates the reserved resources to the MU-MIMO users.

Abstract: The present invention relates to a negative electrode material comprising a hydrogen storage alloy and a coating layer on a surface of the hydrogen storage alloy. Based on the mass of the negative electrode active material, a content of the coating layer is no less than 2 wt %. The coating layer comprises a component shown by a general formula LnFx, wherein Ln is one element selected from the group consisting of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, and Sc. The present invention also relates to a preparation method for the above-described negative electrode material. The present invention also relates to a nickel-metal hydride secondary battery using this negative electrode material.

Abstract: A single-channel wireless synchronous transmission system of energy and signal based on an integrated magnetic circuit coupling structure is provided. The system includes a direct current power supply, a high-frequency inverter circuit, a primary energy transmitter circuit, a secondary receiver circuit, a rectifier circuit, a load, a signal modulation circuit and a signal demodulation circuit. The secondary receiver circuit includes a secondary energy receiver circuit and a secondary signal receiver circuit, where an energy receiver coil and a signal receiver coil are superposed on top of each other, and the energy receiver coil and the signal receiver coil are decoupled from each other and form an integrated magnetic circuit coupling structure with a transmitter coil of the primary energy transmitter circuit.

Abstract: A control system for a wireless power transfer (WPT) system includes current sampling modules, voltage sampling modules, a logic conversion circuit, and a controller area network (CAN) communication module that are all connected to a microprocessor module; the current sampling module is connected to the logic conversion circuit through a signal isolation circuit, the logic conversion circuit is connected to a pulse-width modulation (PWM) module, the PWM module is connected to an inverter circuit or a DC/DC converter, and the current sampling module and the voltage sampling module are connected to a primary side or a secondary side of the WPT system; transmitter coils on the primary side are spaced apart on the road, a receiver coil on the secondary side is disposed on a chassis of an electric vehicle, and the transmitter coil includes a double rectangular coil, a ferrite core surface, and a shielding aluminum plate.

Abstract: The present disclosure discloses a stabilizer configured to be rotatable about a pitch axis and a roll axis for stabilizing a photographing device. Said stabilizer includes: a handle with a pitch axis motor, on a side face of which is provided with a first coupling part; a connection arm, on the distal end portion of which is provided with a holder driven by the roll axis motor and on a side face of which is provided with a second coupling part coupled with said first coupling part, such that said connection arm can move towards the distal direction or the proximal direction relative to said handle, and can move into a storage configuration with reduced storage space.

Abstract: A control system for a wireless power transfer (WPT) system includes current sampling modules, voltage sampling modules, a logic conversion circuit, and a controller area network (CAN) communication module that are all connected to a microprocessor module; the current sampling module is connected to the logic conversion circuit through a signal isolation circuit, the logic conversion circuit is connected to a pulse-width modulation (PWM) module, the PWM module is connected to an inverter circuit or a DC/DC converter, and the current sampling module and the voltage sampling module are connected to a primary side or a secondary side of the WPT system; transmitter coils on the primary side are spaced apart on the road, a receiver coil on the secondary side is disposed on a chassis of an electric vehicle, and the transmitter coil includes a double rectangular coil, a ferrite core surface, and a shielding aluminum plate.

Abstract: A method and a base station are disclosed for multi-user multiple input multiple output (MU-MIMO). According to an embodiment, a base station obtains historical scheduling characteristic information. The base station reserves resources for MU-MIMO users based at least on the historical scheduling characteristic information. The base station allocates the reserved resources to the MU-MIMO users.