Abstract: The present application discloses a cerebral perfusion state classification apparatus and method, a device, and a storage medium. The method includes: acquiring, by a transceiving module, cervical blood flow data from an ultrasound data collecting device; determining, by a processor, cerebral perfusion data corresponding to the cervical blood flow data based on the cervical blood flow data and a mapping relationship between the cervical blood flow data and the cerebral perfusion data, and classifying cerebral perfusion states of a plurality of brain regions based on blood perfusion characteristics of the plurality of brain regions in the cerebral perfusion data.

Abstract: A device for detecting a slot wedge, an air gap and a broken rotor bar is provided, where a sequential circuit generates double concurrent pulses; the sequential circuit is connected to driving power modules; the driving power modules are connected to front-end interface circuits; the front-end interface circuits convert the double concurrent pulses into corresponding magnetic-field pulses; the magnetic-field pulses are transmitted to power supply terminals on adjacent phases of stator windings through impedance matching pins and coupled at a corresponding coil, air gap and squirrel cage rotor to generate single groups of cyclic rotating magnetic potentials; single rotating magnetic potentials are sequentially generated in adjacent slots on each of the phases of the stator windings; rotating electric potentials in magnetic circuits with two symmetrical phases are magnetically coupled to form distributed coupling magnetic field reflected full-cycle waves for reflecting a difference of a corresponding slot wedg

Abstract: The present disclosure provides an encoding apparatus and a decoding apparatus, as well as an encoding method and a decoding method. In particular, the present disclosure relates to block partitioning and signaling the partitioning parameters in a bitstream. An override flag in a slice header indicates whether or not a block is to be partitioned according to a first partition constraint information. The override flag is included in the bitstream and the block is partitioned accordingly.

Abstract: The various embodiments described herein include methods and systems for encoding and decoding video. In one aspect, a method includes obtaining video data that includes a plurality of blocks, including a first block, where the video data is to be coded in a warp mode or a motion mode. The method further includes identifying two or more warp groups for the first block and determining a respective cost associated with each warp group of the two or more warp groups. The method also includes selecting a warp group from the two or more warp groups based on the respective costs, and encoding, in accordance with the selected warp group, the first block and a syntax element indicating the warp mode or the motion mode without regards to whether a valid motion vector is available.

Abstract: The various embodiments described herein include methods and systems for encoding and decoding video. In one aspect, a method includes receiving video data comprising a plurality of blocks, including a first block, from a video bitstream. The method also includes obtaining a first syntax element from the video bitstream, the first syntax element indicating a quantity, N, of temporal motion vector predictor (TMVP) candidates for a motion vector predictor (MVP) list. The method further includes identifying a set of TMVP candidates, the set of TMVP candidates having a size less than or equal to N, and generating the MVP list using at least the set of TMVP candidates. The method also includes reconstructing the first block using the MVP list.

Abstract: The present invention discloses a 400 MPa corrosion-resistant steel bar and a production method thereof. The steel bar includes the following chemical ingredients: 9.5-10.4% of Cr, 1.0-1.2% of Mo, 0.3-0.6% of Mn, 0.01-1% of Ni, 0.01-0.5% of Cu, at most 0.014% of C, at most 0.004% of N, 0.01-0.05% of Nb, 0.2-0.6% of Si, and the balance of Fe, where Cr+Mo+0.5Mn+0.35Ni+0.25Cu is 11.1-12.2%, and C+N+0.3Si+Mn+1.8Nb is 0.4-0.8%.

Abstract: This disclosure relates generally to video coding and particularly to methods and systems for determination of temporal motion vector predictor (TMVP) candidates for inter-prediction in video coding. The disclosed methods, for example, include restricting the number of TMVP candidates in a motion vector predictor (MVP) list and provide various search mechanism in order to promote MVP candidate diversity among TMVP and other types of MVP candidates and to improve coding efficiency.

Abstract: Embodiments of the present invention provide an optical switching apparatus, an optical switching method, an optical switching node, and a system, to implement switching of optical signals in more transmission directions. The optical switching apparatus includes input ports, a first dispersion member, a first switching engine, a first beam combining member, a first lens group, a second dispersion member, a second beam combining member, a second switching engine, and output ports. The first switching engine and the second switching engine jointly change transmission directions of sub-wavelength light beams along a wavelength plane and a port plane, the wavelength plane and the port plane are perpendicular to each other, and both the wavelength plane and the port plane are parallel to transmission directions of first light beams.

Abstract: An optical communication system includes a sending device, an optical cross-connect (OXC) device, and a first receiving device. The sending device is configured to send a modulated first service optical signal to the OXC device. The OXC device is configured to receive the modulated first service optical signal through a first input port, and divide the modulated first service optical signal into N1 first optical signals based on a wavelength. The OXC device is configured to send M1 first optical signals to the first receiving device through M1 first output ports.

Abstract: Memories having a controller configured to perform methods during programming operations including apply a first voltage level to a data line selectively connected to a selected memory cell selected, apply a lower second voltage level to a select gate connected between the data line and the memory cell, decrease the voltage level applied to the data line from the first voltage level to a third voltage level while continuing to apply the second voltage level to the select gate, increase the voltage level applied to the select gate from the second voltage level to a fourth voltage level after the voltage level of the data line settles to the third voltage level, and apply a programming voltage to the memory cell after increasing the voltage level applied to the select gate to the fourth voltage level.

Abstract: Systems and methods for optical computation and acousto-optic modulation are described. The systems and methods comprise acousto-optic modulators with reflectors and transducers used for actuation and modulation of mechanical waves. The systems further comprise multilayer optical computing systems incorporating arrays of acousto-optic modulators.

Abstract: Memories having a controller configured to perform methods during programming operations including apply a first voltage level to a data line selectively connected to a selected memory cell selected, apply a lower second voltage level to a select gate connected between the data line and the memory cell, decrease the voltage level applied to the data line from the first voltage level to a third voltage level while continuing to apply the second voltage level to the select gate, increase the voltage level applied to the select gate from the second voltage level to a fourth voltage level after the voltage level of the data line settles to the third voltage level, and apply a programming voltage to the memory cell after increasing the voltage level applied to the select gate to the fourth voltage level.

Abstract: In an embodiment, an electronic display includes an active area including a plurality of pixels arranged in columns and a plurality of source drivers driving image data to columns of pixels. The electronic display also includes a first plurality of switches selectively coupling respective source drivers of the plurality of source drivers to one or more columns. Selective coupling enables the respective source drivers to, at different times, drive the image data to: a single column; and multiple columns. In another embodiment, an electronic display includes a display panel configured to operate using a reference voltage received via a resistive path having a routing resistance, a reference voltage source outputting the reference voltage, and a feedback circuit sensing an electrical parameter of the resistive path and producing a compensation voltage that, when added to the reference voltage, causes the reference voltage to remain substantially constant at the display panel.

Abstract: An optical switching apparatus includes an input port, a dispersion component, a first filter, a redirection component, and output ports. The input port enables a first and a second beam to be incident onto the dispersion component, which decomposes the first and the second beams respectively into a plurality of first and second sub-beams, where the plurality of first sub-beams and second sub-beams belong to different bands. The first filter separates transmission directions of the plurality of first and second sub-beams into different transmission directions in a first direction (X) based on the different bands, enables the plurality of first and second sub-beams respectively to be incident onto a first area and a second area of the redirection component, where the first and second areas are separated in the first direction.

Abstract: This application provides an imaging method and an optical imaging system. One example method includes: obtaining a first modulation parameter, wherein the first modulation parameter is determined based on a first distorted image and a first target image, the first distorted image is an image presented after imaging processing is performed on a training image by using the optical imaging system and a screen, the first target image is an image of the training image, and distortion of the first target image falls within a preset range; and controlling the spatial light modulator to modulate an electrical signal of a to-be-imaged first image based on the first modulation parameter, and to generate an imaging light beam that is incident to human eyes through the lens and the screen.

Abstract: The present invention clones a gene ZmNLP5 from maize, which plays an important regulatory role in nitrogen assimilation, and the open reading frame of which has a DNA sequence shown as SEQ ID NO:1. The transcription factor protein encoded by the ZmNLP5 gene has an amino acid sequence shown as SEQ ID NO:2. The uses of the maize NLP transcription factor ZmNLP5 mentioned above in promoting expression of a nitrogen metabolic key enzyme gene ZmNIR1.1, in promoting expression of a nitrogen metabolic key enzyme gene ZmNIR1.2, in promoting expression of a nitrogen metabolic key enzyme gene ZmNR1.1, in promoting expression of a nitrogen metabolic key enzyme gene ZmNR1.2, in improving nitrogen assimilation in maize, and in promoting elongation growth of maize root in deficient nitrogen environment are further provided.

Abstract: An optical switch device and a related method for defining a topological light transport channel in a photonic lattice are provided. An exemplary optical switch device includes a photonic lattice including a photonic topological microring array comprising a plurality of site rings coupled via a plurality of anti-resonant link rings, a plurality of input light ports and a plurality of output light ports located at the plurality of site rings, wherein the plurality of input light ports and the plurality of output light ports are respectively connected by a plurality of topological light transport channels. The optical switch device is further configured such that each of the topological light transport channels is defined by a gain domain area that is produced by a corresponding patterned optical pumping beam emitted onto the photonic topological microring array.

Abstract: A high-efficiency Zea mays L. breeding method based on individual plant evaluation and genome-wide selection (GWS) includes: S1. in a first cropping season, pollinating a Zea mays L. female parent with multiple male parents; S2. in a second cropping season, subjecting hybrid seeds to single-seed sowing, conducting individual plant selection, and evaluating target traits; S3. identifying a parent of a selected cross combination; S4. subjecting a target trait of a cross combination to genome-wide prediction; S5. selecting an excellent cross combination according to a predicted target trait; and S6. subjecting the selected excellent cross combination directly to variety registration or to further evaluation. The high-efficiency Zea mays L. breeding method provided by the present disclosure greatly reduces a quantity of cross combination seeds obtained in the first cropping season and a planting scale of the cross combinations in the second cropping season, and effectively reduces the breeding cost.

Abstract: A method of free-field broadband calibration of hydrophone sensitivity based on pink noise, relating to the field of free-field underwater acoustic measurement, and is mainly used for broadband measurements of hydrophone sensitivity in free-field. The method of the present disclosure is to transmit a broadband pink noise signal by controlling the signal source, and to perform the synchronous processing and FFT to the transmitted current signal and the received voltage signal, such as interception and zero padding, and finally obtain the transfer function in the frequency domain; by analyzing the direct wave and the reflected wave in the water tank, the transfer function is averaged by a rectangular window to eliminate the influence of the reverberation of the reflected wave in the water tank, so as to obtain the broadband transfer function of the free-field between the transmitting transducer and the hydrophone.

Abstract: A wavelength switching apparatus includes M input components, a first optical component, a first switch array, a second switch array, a second optical component, and K output components. The M input components include at least one local input component having N input ports, and a light beam input by the local input component can be converged, under an action of the first optical component, on a row of switch units that are in the first switch array and that are corresponding to the local input component. In this way, this is equivalent to further connecting an N*1-dimensional WSS to an input end of an M*K-dimensional WSS, so that the wavelength switching apparatus can integrate a wavelength adding function based on the M*K-dimensional WSS.