Abstract: The present invention provides preparation of a semicarbazide-sensitive amine oxidase inhibitor and use thereof. In particular, disclosed in the present invention are a compound as represented by formula I, or a stereoisomer or a racemate or a pharmaceutically acceptable salt of the compound. Also disclosed in the present invention is that the compound can inhibit semicarbazide-sensitive amine oxidase.

Abstract: Disclosed are a method and an apparatus for handover between heterogeneous networks.

Abstract: A method for adjusting a holographic content includes: a pose of an electronic device and a pose of a holographic content are obtained respectively under a current spatial coordinate system; difference information between the pose of the electronic device and the pose of the holographic content is obtained; and the pose of the holographic content is adjusted if it is determined that the pose of the holographic content is to be adjusted based on the difference information.

Abstract: A signal processing method and apparatus are provided. The method includes: receiving an optical signal in a target receive channel, and converting the optical signal into an electrical signal; determining, in the converted electrical signal, an electrical signal associated with a non-overlapping frequency band between the target receive channel and another channel, where the another channel is a channel that overlaps the target receive channel; and determining, based on the electrical signal associated with the non-overlapping frequency band, an electrical signal corresponding to a valid received optical signal that does not include an interfering optical signal in the target receive channel. According to the application, the target transmit channel and the another channel are set to channels that overlap each other, thereby reducing bandwidths occupied by the channels.

Abstract: The embodiments of the present application provide a method and apparatus for modulation recognition of signals based on cyclic residual network, the method comprises: obtaining a signal matrix of a to-be-recognized signal, and extracting real part information and imaginary part information of the signal matrix; generating, according to extracted real part information and imaginary part information, a real-and-imaginary-part feature matrix of the to-be-recognized signal; converting, according to a preset matrix conversion method, the real-and-imaginary-part feature matrix into an amplitude-and-phase feature matrix; and inputting the amplitude-and-phase feature matrix into a pre-trained cyclic residual network to obtain a modulation mode corresponding to the to-be-recognized signal.

Abstract: Disclosed is a method for classifying mixed signals, comprising: receiving mixed signals; performing calculation on a matrix corresponding to the mixed signals by means of a preset Principal Component Analysis method to obtain to-be-classified mixed signals and to determine the number of types of signals contained in the to-be-classified mixed signals; determining a separation matrix based on the number of types of signals contained in the to-be-classified mixed signals; separating individual signals in the to-be-classified mixed signals by means of the separation matrix to obtain to-be-identified signals; calculating a preset number of high-order cumulants corresponding to each to-be-identified signal in the to-be-identified signals respectively; taking the calculated high-order cumulants as characteristics of the to-be-identified signal corresponding to the high-order cumulants respectively; inputting the characteristics of the to-be-identified signal into a preset classification model; and obtaining a modu

Abstract: A class of five-membered fused with six-membered heterocyclic compounds represented by formula I and a pharmaceutical composition, preparation, and an application thereof are disclosed. These compounds have TRK kinase inhibitory activity and can treat diseases related to TRK dysfunction.

Abstract: Disclosed are methods for beam tracking. In the methods, a transmitting unmanned aerial vehicle (UAV) receives motion state information (MSI) of a receiving UAV and determines a first beam angle from the transmitting UAV to the receiving UAV according to the MSI of the receiving UAV. Then the transmitting UAV selects a codeword from a codebook according to the first beam angle. Finally, the transmitting UAV determines an activated sub-array and a beam-forming vector of the CCA according to the size of the activated sub-array corresponding to the sub-codebook to which the codeword belongs, a second beam angle corresponding to the codeword and a location of a central antenna element of an activated sub-array corresponding to the codeword and transmits information using the beam-forming vector. One or more examples of the present disclosure also provide a method for beam tracking implemented by the receiving UAV, methods for generating a codebook.

Abstract: Provided are a preparation of semicarbazide-sensitive amine oxidase inhibitor and the use thereof. In particular, disclosed are a compound as shown in formula I, or a stereoisomer or racemate or pharmaceutically acceptable salt thereof. Also disclosed is that the above-mentioned compound can inhibit semicarbazide-sensitive amine oxidase.

Abstract: The present invention discloses the preparation and application of heterocyclic compound having immunoregulatory function. Specifically, the present invention discloses a compound having a structure according to Formula I, wherein the definition of each group is as described in the specification. The invention also provides the use of the compounds in regulating immunity and inhibiting PD-1/PD-L1.

Abstract: Provided are a radar communication integrated cooperative detection method and apparatus based on beam power distribution.

Abstract: Provided are a preparation and applications of a six-membered fused with six-membered heterocyclic compound, specifically, provided in the present invention is a compound as represented by formula I as follows, where the definitions of the groups are as described in the description. The compound has TRK kinase inhibiting activity and can serve as a pharmaceutical composition for treating TRK dysfunction-related diseases.

Abstract: Clustering-based methods, apparatuses for frequency offset determination and elimination and electronic devices are disclosed. The clustering-based method for frequency offset determination includes: determining a constellation diagram for a received signal; determining N different values within a preset frequency interval, as N frequency offset estimates for a frequency offset of the received signal; for each of the frequency offset estimates, correcting the constellation diagram based on the frequency offset estimate to obtain a corrected constellation diagram, clustering signal points on the corrected constellation diagram, and calculating an area of a signal region in the corrected constellation diagram after clustering; and determining a frequency offset estimate corresponding to a signal region with a minimum area as a value of the frequency offset. The embodiments of the present invention can improve the accuracy and stability of the calculated value of the frequency offset.

Abstract: Provided are a JAK kinase inhibitor, preparation and use thereof. In particular, provided is a compound of Formula I, wherein each group is as described in the specification. The compound has an excellent JAK inhibitory activity, and therefore can be used to prepare pharmaceutical compositions for the treatment of cancer and other diseases related to JAK activity.

Abstract: Disclosed are methods for beam tracking. In the methods, a transmitting unmanned aerial vehicle (UAV) receives motion state information (MSI) of a receiving UAV and determines a first beam angle from the transmitting UAV to the receiving UAV according to the MSI of the receiving UAV. Then the transmitting UAV selects a codeword from a codebook according to the first beam angle. Finally, the transmitting UAV determines an activated sub-array and a beam-forming vector of the CCA according to the size of the activated sub-array corresponding to the sub-codebook to which the codeword belongs, a second beam angle corresponding to the codeword and a location of a central antenna element of an activated sub-array corresponding to the codeword and transmits information using the beam-forming vector. One or more examples of the present disclosure also provide a method for beam tracking implemented by the receiving UAV, methods for generating a codebook.

Abstract: Disclosed are a method and an apparatus for handover between heterogeneous networks.

Abstract: Provided are an aromatic compound having immunoregulatory effect, a preparation method thereof, and a use of the same in regulating immune responses or inhibiting PD-1/PD-L1.

Abstract: This application discloses an optical signal transceiver apparatus, and belongs to the communications field.

Abstract: Embodiments of the present invention provide a reconfigurable optical add/drop multiplexer, including: an input component, an output component, a beamsplitter, a first switch array, a wavelength dispersion system, a redirection system, and a second switch array. The input component includes M+P input ports, the output component includes N output ports, the beamsplitter is configured to: receive M input beams from M input ports, and split each of the M input beams into at least N parts, to obtain at least M×N beams; the first switch array includes at least P switch units; and the second switch array includes N rows of switch units. The first switch array, the beamsplitter, the wavelength dispersion system, the redirection system, and the second switch array are arranged so that P optical add beams and sub-beams of M×N beams in the at least M×N beams can be routed to the N output ports.

Abstract: Clustering-based methods, apparatuses for frequency offset determination and elimination and electronic devices are disclosed. The clustering-based method for frequency offset determination includes: determining a constellation diagram for a received signal; determining N different values within a preset frequency interval, as N frequency offset estimates for a frequency offset of the received signal; for each of the frequency offset estimates, correcting the constellation diagram based on the frequency offset estimate to obtain a corrected constellation diagram, clustering signal points on the corrected constellation diagram, and calculating an area of a signal region in the corrected constellation diagram after clustering; and determining a frequency offset estimate corresponding to a signal region with a minimum area as a value of the frequency offset. The embodiments of the present invention can improve the accuracy and stability of the calculated value of the frequency offset.