Abstract: A method includes: communicating with a base station using a first waveform; receiving configuration information specifying an interference measurement resource associated with a second waveform different from a channel measurement resource associated with the first waveform; performing channel measurement associated with the first waveform and interference measurement associated with the second waveform, according to the configuration information; and providing channel state information (CSI) feedback to the base station, the CSI feedback based at least in part on the channel measurement and the interference measurement.

Abstract: Disclosed is a microwave chemical method for totally extracting fluorine and rare earth from bastnaesite concentrate, including: alkaline conversion defluorination of bastnaesite through microwave irradiation, microwave-assisted leaching of fluorine, solid-liquid separation of leaching solution and microwave-assisted leaching of rare earth. The rare earth hydrochloric acid solution for leaching contains no fluorine ion, so that the fluorine interference of subsequent processes such as impurity removal can be completely avoided; the fluorine and the rare earth are leached with microwaves, which does not need the stirring, so that the automatic control is easy to implement; the fluorine and rare earth leaching speed is high, the leaching time is short and the complete leaching of fluorine and little residual alkali in the slag can be realized by two-time leaching; and no fluorine-containing waste water is discharged, and the total extraction of the rare earth can be realized by one-time leaching.

Abstract: A geometric approach may be used to detect objects on a road surface. A set of points within a region of interest between a first frame and a second frame are captured and tracked to determine a difference in location between the set of points in two frames. The first frame may be aligned with the second frame and the first pixel values of the first frame may be compared with the second pixel values of the second frame to generate a disparity image including third pixels. One or more subsets of the third pixels that have a value above a first threshold may be combined, and the third pixels may be scored and associated with disparity values for each pixel of the one or more subsets of the third pixels. A bounding shape may be generated based on the scoring.

Abstract: A display module (10) includes: a display panel (12) and a circuit board (14) coupled to the display panel (12). The display panel (12) includes a driving chip (122) and a display unit (124); and the circuit board (14) includes a first filter element (142), wherein the first filter element (142) is coupled to the driving chip (122) and the display unit (124), and a direct current signal output by the driving chip (122) is filtered by the first filter element (142) and then transmitted to the display unit (124). The present disclosure also provides a display apparatus (100).

Abstract: A semiconductor device and a method for manufacturing the same are provided in this disclosure. The semiconductor device includes a semiconductor heterostructure layer. The semiconductor heterostructure layer includes alternating first semiconductor material layers and second semiconductor material layers. Two-dimensional electron gas (2DEG) may be generated between each first semiconductor material layer and adjacent second semiconductor material layer. A conductive structure, including a plurality of conductive fingers extends from a surface of the semiconductor heterostructure layer into the semiconductor heterostructure layer. The plurality of conductive fingers are arranged in a direction substantially parallel to the surface. The lengths of the plurality of conductive fingers progressively increase in that direction so that an end portion of each conductive finger is respectively positioned in a different second semiconductor material layer and is not in contact with the 2DEG.

Abstract: An anechoic chamber and a construction method thereof are provided, the anechoic chamber includes a top surface, being a polygon; trapezoid surfaces, corresponding to edges of top surface, upper edge lengths of trapezoid surface being equal to edge lengths of top surface, trapezoid surfaces being connected to edges of top surface through the upper edges, the trapezoid surfaces being sequentially connected along a circumferential direction of top surface, and being at angle to the top surface; rectangular surfaces, corresponding to the trapezoid surfaces, upper edge lengths of rectangular surface being equal to lower edge lengths of trapezoid surface, rectangular surfaces being connected to the trapezoid surfaces through the upper edges, the rectangular surfaces being sequentially connected along a circumferential direction of the lower edges of trapezoid surfaces, and being perpendicular to the top surface; and an absorbing material, disposed on the top surface, the trapezoid surfaces and the rectangular surf

Abstract: Provided is a method for synthesizing a chiral amine compound. A transaminase is used to transaminate a ketone substrate under the action of an amino donor, to obtain the chiral amine compound; and the conserved amino acid sequence region of the transaminase at least includes a region 1 (MAGLWCVN) and a region 2 (YNTFFKT). With the transaminase with the specific conserved amino acid sequence region to synthesize a large sterically hindered chiral amine, the enzyme catalytic reaction volume is small, the synthesizing route is short, the product yield is high, a high-cost noble metal is not required for catalysis under the synthesizing conditions, three wastes are reduced, and the production cost is saved.

Abstract: Provided are a continuous post-treatment method and device for a penem compound. The method includes the following steps: S1, performing continuous extraction on a reaction crude product of a penem compound, to obtain an extraction heavy phase and an extraction light phase; S2, performing continuous solid-liquid separation on the extraction heavy phase, to obtain a liquid phase separation product; S3, performing continuous pH adjustment on the liquid phase separation product until a pH value thereof is 6.1-6.3, to obtain pH-adjusted solution; and S4, performing continuous crystallization treatment on the pH-adjusted solution by a first crystallization solvent, to obtain a penem compound product. The use of the method for the post-treatment of the reaction crude product of the penem compound has the advantages of high treatment speed and high efficiency, and stable material properties and a low deterioration rate during the treatment, and has better control over the yield and purity of a target product.

Abstract: A stroboscopic stepped illumination defect detection system for appearance defect detection of a product is provided. The system includes an image extraction unit, a brightness adjustment unit, a data processing unit, and a stroboscopic control unit. The image extraction unit is connected to the stroboscopic control unit and used for obtaining stable and clear images in various transmission/reflection visual bright fields/dark fields; and the brightness adjustment unit is connected to the stroboscopic control unit and used for setting various transmission/reflection visual bright fields/dark fields and converting in the various transmission/reflection visual bright fields/dark fields.

Abstract: A frequency synthesis system and a frequency generation method of microwave photons based on photoelectric synergy are provided, the system includes an optical frequency comb for generating narrow optical pulse signals with high stability and low phase noise through; an optical frequency doubling/dividing unit for performing frequency doubling or frequency dividing on a repetition frequency of the narrow optical pulse signals output by the optical frequency comb; a photoelectric conversion unit for performing photoelectric conversion on input optical pulse signals, and outputting an electrical frequency comb; a second electrical filter unit for filtering input electrical signals; and a second electrical amplifying unit for performing power amplification on the input electrical signals.

Abstract: Provided are a GLP-1 receptor agonist compound and a composition and use thereof. The compound can be used for treating or preventing GLP-1 receptor-mediated diseases or disorders and related diseases or disorders.

Abstract: The present disclosure provides a fusion peptide, a peptide-molecule conjugate containing the same, and a composition for nucleic acid delivery containing the same. The fusion peptide and the peptide-molecule conjugate containing the same of the present disclosure are expected to be used as a carrier for gene therapy intended for gene editing or treatment of diseases by delivering nucleic acids to cells or organs because it can be used for effective and safe delivery of nucleic acid materials and can be stored for a long time of 13 weeks or longer without structural destruction of the nucleic acids under harsh conditions.

Abstract: Disclosed are a refrigerator and a door assembly therefor; the door assembly includes two oppositely arranged doors and a turnover beam assembly, wherein the turnover beam assembly includes: a turnover beam body; a guide part extending out of one end of the turnover beam body and configured to be fitted with a retainer provided on a cabinet of the refrigerator; a locking part telescopically provided in the turnover beam body and having a first end fixedly connected with the guide part and a second end having a locking portion, the locking part having an unlocking state and a locking state. In the present invention, an anti-turnover function of the turnover beam body is achieved using the locking part and the elastic part, which improves coordination among all components, makes an internal structure of the turnover beam assembly more reasonable, achieves high practicability, and realizes easy popularization.

Abstract: Some embodiments of the present disclosure provide for secure information transfer from apparatus to network device. The network device may define and configure a secure transfer path, having functions of secure data transmission with or without QoS. A new entity plane may take one or more new radio network temporary identifiers for flexible transmission scheduling. The network device may initiate the secure information transfer for downlink or uplink transmissions. The apparatus may initiate the secure information transfer for uplink transmissions.

Abstract: A system and a method for generating an arbitrary waveform of a microwave photon based on optical frequency tuning are provided. The system includes an optical frequency comb, a first optical distribution unit, a first photoelectric conversion unit, a frequency-shift drive circuit, and an optical frequency doubling/dividing unit, an optical frequency-shift combining optical circuit, a second photoelectric conversion unit, and a second electrical processing circuit. The optical frequency comb is used as the frequency source, with the features of high stability and low phase noise of the optical frequency comb, the arbitrary waveforms of microwave photons can be generated through optical frequency tuning control; the performance of the optical frequency comb is three orders of magnitude or more higher than that of the common microwave frequency sources, therefore, the waveforms with high-frequency, ultra-wideband, low phase noise, and high stability can be generated.

Abstract: A charging and discharging device includes a transformer consisting of a primary winding and multiple secondary windings including at least a first secondary winding and a second secondary winding; multiple ports electrically connected to the primary winding and the multiple secondary windings of the transformer, respectively, wherein the multiple ports at least include a first port electrically connected to the primary winding via a first conversion circuit; a second port electrically connected to the first secondary winding via a second conversion circuit; and a third port electrically connected to the second secondary winding via a third conversion circuit; and a first controllable switch connected between the first conversion circuit and the primary winding.

Abstract: A terminal device obtains first slice selection assistance information, where the first slice selection assistance information is obtained by encrypting second slice selection assistance information, and the second slice selection assistance information is selection assistance information of a slice to which the terminal device is allowed to access. The terminal device sends a registration request message to an access network device, where the registration request message includes the first slice selection assistance information.

Abstract: Provided are a control channel monitoring method and apparatus, an information element transmission method and apparatus, a device, and a storage medium Whether H first-type control channel elements include the same control channel information can be determined according to signaling information and/or a preset rule, where H is a positive integer greater than or equal to 2; and a control channel is monitored according to a determination result.

Abstract: Methods, systems, and devices for connection setup in an orbital angular momentum (OAM)-based communication system are described. A first device and a second device may establish an OAM communications connection between the devices. The first device and the second device may exchange a series of messages over a downlink communications link and an uplink communications link according to an OAM mode. Based on OAM related parameters or OAM related information included in the messages, the first device and the second device may achieve a successful directional alignment (co-axial alignment) between the first device and the second device. The first device and the second device may determine one or more orbital angular momentum modes for communication between the first device and the second device based on the establishing the directional alignment.

Abstract: A single-stage multi-path direct current access converter and a control method thereof are provided. The single-stage multi-path direct current access converter includes an AC-side conversion circuit; at least two DC-side conversion circuits; and transformers corresponding to the at least two DC-side conversion circuits. AC sides of the at least two DC-side conversion circuits are respectively connected to primary windings of the corresponding transformers; secondary windings of the transformers are connected in parallel to a first side of the AC-side conversion circuit; each of the at least two DC-side conversion circuits is configured to invert DC power received by the DC-side conversion circuit, or to rectify AC power received by the DC-side conversion circuit; and the AC-side conversion circuit is configured to perform AC frequency conversion.