Abstract: The present disclosure discloses a method for encrypting a visually secure image based on adaptive block compressed sensing and non-negative matrix decomposition. Firstly, the Tetrolet transform is performed on the plain image, then the sparsity degree is optimized on the sparsity matrix and the matrix scrambling is performed, such that the sparsity degree in each block region of the image matrix is equalized. Then according to the image information, the sampling number of the block region is calculated, the measurement matrix is constructed and optimized, and the image is compressed by using the optimized measurement matrix. The compressed image is then scrambled and diffused to complete the encryption process. Finally, the image information is embedded into the carrier image through non-negative matrix decomposition to obtain a visually safe ciphertext image. The decryption process is the inverse of the encryption process.

Abstract: A method for accurately positioning a navigation target point includes: selecting a navigation reference with a fixed position, acquiring positions of the navigation reference and the navigation target point in a navigation coordinate system respectively, and calculating a position of the navigation target point relative to the navigation reference, so as to further obtain a position of the navigation target point in a coordinate system of the navigation reference. As long as the navigation reference does not move, the coordinate system of the navigation reference will not change during the entire navigation process, and spatial position coordinates of the navigation target point in the coordinate system of the navigation reference will not be interfered by the navigation coordinate system.

Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.

Abstract: A drive system for an industrial handling vehicle comprises an electric motor, a first pump, for example, a plunger pump, and a second pump, for example, a gear pump. The first pump is configured to provide hydraulic power for a travelling device of the industrial handling vehicle. The first pump and the travelling device are in a first hydraulic circuit. The second pump is configured to provide hydraulic power for a brake device and/or a steering device and/or a handling device of the industrial handling vehicle. The second pump, the brake device, the steering device, and the handling device are in a second hydraulic circuit isolated from the first hydraulic circuit. The electric motor is operatively coupled to both the first pump and the second pump, to drive them to operate.

Abstract: The present disclosure relates to a wide-range perpendicular sensitive magnetic sensor and the method for manufacturing the same, the magnetic sensor includes a substrate, a plurality of magnetic tunnel junctions, a plurality of magnetic flux regulators, a first output port and a second output port.

Abstract: The present invention relates to salts of a PI3Kdelta inhibitor (referred to as “Compound A” hereinafter), preferably fumarate, and the crystalline forms thereof. The present invention also relates to the process of preparation and uses of the salts and crystalline forms of Compound A.

Abstract: The present disclosure relates to an AC/DC closed-loop current sensor, including a magnetism gathering iron core, a TMR chip, a signal processing circuit, a signal generator, and a feedback coil. The TMR chip is arranged at an air gap of the magnetism gathering iron core and connected to the signal processing circuit. The signal processing circuit is connected to the signal generator. The feedback coil is wound around the magnetism gathering iron core and connected to the signal generator. The signal processing circuit is configured to select from the induced signal of the TMR chip and make an amplification to obtain a current signal component and send the current signal component to the signal generator. The signal generator is configured to adjust a current output to the feedback coil based on the current signal component, and output a measurement result of the selected current signal component.

Abstract: Provided are a method and device for receiving a measurement reference signal. The method includes: receiving control signaling; where the control signaling includes configuration information of a measurement reference signal, and the configuration information satisfies the following feature: configuring the measurement reference signal to occupy a frequency domain resource in a time domain symbol of a first set of time domain symbols in which a downlink control channel is located; and receiving the measurement reference signal according to the control signaling; wherein the first set of time domain symbols comprise M symbols, where M is a natural number; where the first set of time domain symbols in which the downlink control channel are determined by semi-static signaling; where a beam for the measurement reference signal and a beam for the downlink control is located channel are same in the time domain symbol.

Abstract: An adaptive characteristic spectral line screening method and system based on atomic emission spectrum are provided, the method includes: using a set characteristic screening optimization method to perform a plurality of optimization rounds of characteristic screening, obtaining an initialized spectral dataset of each round of the characteristic screening and initialized characteristic population genes; obtaining an optimal characteristic population gene of each round by a set analysis method, a fitness function, and an iteration of a genetic algorithm; obtaining an optimized characteristic spectral information set when the plurality of optimization rounds reach set optimization rounds; performing combination statistics and discriminant analyses on the optimized characteristic spectral information set to complete an adaptive characteristic spectral line screening.

Abstract: A method for preparing Portland cement includes: respectively weighing iron slag, copper slag, vanadium slag, and nickel slag and grinding, to yield prefabricated iron slag, prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag; weighing mica and kaolinite, mixing, and grinding to obtain aluminous raw materials; evenly mixing the prefabricated iron slag and the aluminous raw materials, and calcining, to yield an iron-aluminum eutectic mineral; weighing the marble, fluorite, dolomite, and quartz, evenly mixing the marble, fluorite, dolomite, and quartz with the prefabricated copper slag, prefabricated vanadium slag, and prefabricated nickel slag to yield a first mixture; grinding the iron-aluminum eutectic mineral to yield powders, and calcining a second mixture of the first mixture and the powders, to yield the cement clinker; and cooling the cement clinker, and grinding a third mixture of the cooled cement clinker and the gypsum, to yield the Portland cement.

Abstract: A method for transporting common control information includes: transmitting, by a transmitting end, to the common control information on M time-domain resources through M transmission beams, where each of the M time-domain resources includes N time-domain symbols. One time-domain resource of the M time-domain resources where the common control information of each of the M transmission beams is located is respectively determined according to a beam index of a transmission beam, wherein M and N are positive integers. One of M time-domain resources for a synchronization signal corresponds to one time-domain resource of the M time-domain resources of the common control information, a one-to-one correspondence exists between the M transmission beams and the M time-domain resources for the synchronization signal; and a one-to-one correspondence exists between the M transmission beams and M time-domain resources of a broadcast channel.

Abstract: Electronic device is provided. The electronic device includes a flexible display screen; a support plate, fixedly arranged corresponding to at least part of the flexible display screen; and an adjusting mechanism, for driving the support plate to support the flexible display screen in a first state and driving the support plate to support the flexible display screen in a second state. The first state of the support plate is a flat support state. The second state of the support plate is a bent support state.

Abstract: The present disclosure relates to spherical dual-polarization phased array weather radar. The spherical dual-polarization phased array weather radar comprises a spherical crown phased array antenna module, a digital transceiver module and a signal processing module, wherein the spherical crown phased array antenna module comprises a spherical support frame and a plurality of dual-polarization micro-strip radiation units; the dual-polarized micro-strip radiation units are tightly arranged on the spherical support frame; the spherical crown phased array antenna module is used for detecting weather; wireless transmission is carried out between the digital transceiver module and the spherical crown phased array antenna module; the digital transceiver module is used for generating a frequency modulation signal or a phase coding signal required for detecting meteorological targets and receiving an echo signal reflected by the target; and the signal processing module is connected with the digital transceiver module.

Abstract: Electronic device is provided. The electronic device includes a flexible display screen; a support plate, fixedly arranged corresponding to at least part of the flexible display screen; and an adjusting mechanism, for driving the support plate to support the flexible display screen in a first state and driving the support plate to support the flexible display screen in a second state. The first state of the support plate is a flat support state. The second state of the support plate is a bent support state.

Abstract: A battery pack includes a housing and multiple electrode core strings electrically connected to each other and disposed in the housing. The housing includes a housing body which includes sub-housings connected to each other. A sub-housing includes at least one reinforcing plate and a top plate and a bottom plate oppositely arranged in a first direction. The reinforcing plate is arranged between and is connected to the top plate and the bottom plate, and divides an interior of the corresponding sub-housing into multiple accommodating cavities. At least one accommodating cavity includes at least one electrode core string which includes electrode core assemblies connected and arranged in a second direction. The electrode core assemblies are disposed in an encapsulation film. A length of the electrode core string extends in the second direction. The housing includes a mounting component that is configured to be connected and fixed to an external load.

Abstract: A battery pack housing includes a housing body, the housing body includes multiple connected sub-housings, and at least one reinforcing plate is disposed in at least one of the sub-housings. Each of the sub-housings includes a top plate and a bottom plate arranged opposite to each other in a first direction, the first direction is a height direction of the housing, the at least one reinforcing plate is located between a top plate and a bottom plate, the at least one reinforcing plate is connected to the top plate and the bottom plate, and the at least one reinforcing plate divides an interior of the at least one of the sub-housings into multiple accommodating cavities. A mounting portion is provided on the housing and is configured to be connected and fixed to an external load.

Abstract: The present disclosure relates to spherical dual-polarization phased array weather radar. The spherical dual-polarization phased array weather radar comprises a spherical crown phased array antenna module, a digital transceiver module and a signal processing module, wherein the spherical crown phased array antenna module comprises a spherical support frame and a plurality of dual-polarization micro-strip radiation units; the dual-polarized micro-strip radiation units are tightly arranged on the spherical support frame; the spherical crown phased array antenna module is used for detecting weather; wireless transmission is carried out between the digital transceiver module and the spherical crown phased array antenna module; the digital transceiver module is used for generating a frequency modulation signal or a phase coding signal required for detecting meteorological targets and receiving an echo signal reflected by the target; and the signal processing module is connected with the digital transceiver module.

Abstract: A method for transporting common control information includes: transmitting, by a transmitting end, to the common control information on M time-domain resources through M transmission beams, where each of the M time-domain resources includes N time-domain symbols. One time-domain resource of the M time-domain resources where the common control information of each of the M transmission beams is located is respectively determined according to a beam index of a transmission beam, wherein M and N are positive integers. One of M time-domain resources for a synchronization signal corresponds to one time-domain resource of the M time-domain resources of the common control information, a one-to-one correspondence exists between the M transmission beams and the M time-domain resources for the synchronization signal; and a one-to-one correspondence exists between the M transmission beams and M time-domain resources of a broadcast channel.