Abstract: A growth device and method for low-stress crystals are provided, which relate to the field of preparation of crystals, in particular to a device and method for preparing low-stress and low-defect crystals by using a pulling method. The growth device includes a furnace body; a crucible and a heating and insulation system which are arranged at a bottom of the furnace body; a crystal pulling mechanism, and a quartz observation window; the device further includes a liftable heating mantle mechanism including a heating mantle body, a heating mantle supporting component, a heating wire arranged around the heating mantle body, and a heating mantle lifting mechanism. The method includes: after crystals are pulled out of a melt, covering the crystals with a liftable heating mantle mechanism.

Abstract: A composite containing hollow ceramic spheres and a preparation method are provided. The composite includes an impact-resistant gradient complex part containing a hollow ceramic sphere complex, prepared by using a 3D printing method and a hollow ceramic sphere-high polymer complex dielectric material obtained in a blending and fusing way. The obtained composite has the characteristics of relatively low density and high strength. The impact-resistant gradient complex part is a layered complex, the composition and properties of the complex may be regulated in a direction vertical to a layer according to a design, for example, mechanical properties of the complex are transitioned from soft to hard to form gradient change by regulating the change of the composition, and meanwhile, the thickness among layers with different properties is accurately controlled as required.

Abstract: A construction method of a fine-grained infectious disease simulation model is disclosed. The construction method includes: obtaining a population movement flow between multiple target regions within a predetermined time period; dividing the predetermined time period into multiple time periods based on a time mode; dividing the multiple target regions into multiple spatial nodes based on a spatial mode; and constructing a simulation model according to the population movement flow, the multiple time periods, and the multiple spatial nodes. By the method, the dynamic modeling of the development of infectious diseases is completed; the sub model modeling under different time modes is completed; and the fine-grained modeling under different spatial modes is completed.

Abstract: A track mechanism and a front-loading washing machine are provided. The track mechanism includes a base, the base is provided with a track portion configured to guide a movable body to move along the track portion, the base includes a supporting body and a track body, the track portion is arranged on the track body, the supporting body and the track body are stacked and combined relative to each other, and wear resistance of the track body is higher than that of the supporting body.

Abstract: A semiconductor device and fabrication method thereof are provided. The fabrication method include: providing a to-be-etched material layer; forming a plurality of discrete sacrificial layers on the to-be-etched material layer; forming first initial spacers on sidewalls of each of the discrete sacrificial layers. Each first initial spacer includes a first bottom region and a first top region on the first bottom region; removing the discrete sacrificial layers. The method further includes: removing the first top region of each first initial spacer to form a first spacer from each first bottom region; forming second spacers on sidewalls of each of the first spacers. Each second spacer includes a second bottom region and a second top region on the second bottom region; removing the first spacers; The method further includes: removing the second top regions by etching; and etching the to-be-etched material layer by using the second spacers as a mask.

Abstract: A paraphrase sentence generation method and apparatus relating to the research field of natural language processing include generating m second sentences based on a first sentence and a paraphrase generation model, determining a matching degree between each of the m second sentences and the first sentence based on a paraphrase matching model, and determining n second sentences from the m second sentences based on matching degrees among the m second sentences and the first sentence, where the paraphrase generation model is obtained through reinforcement learning-based training based on a reward of the paraphrase matching model.

Abstract: Disclosed herein are C4 modified oleanolic acid derivatives of the formula: Formula (X) or Formula (XII), as well as analogs thereof, wherein the variables are defined herein. In addition, disclosed herein are pharmaceutical compositions of these derivatives or analogs, methods for their manufacture, and methods for their use, including for the prevention and treatment of diseases or disorders associated with overproduction of IL-17.

Abstract: A signal transmission method, signal detection method and apparatuses thereof and communication system. The signal transmission apparatus includes a transmitting unit configured to transmit a synchronization signal (SS) block to a user equipment within a time window of a predetermined position in an SS block transmission period. Hence, UE cell search and measurement time is reduced, complexity at the UE is lowered, power consumption of the UE is lowered, cell handover is sped up, communication interruption is avoided, and currently at least one of existing problems is solved.

Abstract: Relating to the field of artificial intelligence, and specifically relating to the field of natural language processing, a data processing method includes and an apparatus performs: determining original text samples, where masking processing is not performed on the original text samples; and performing mask processing on the original text samples to obtain mask training samples, where the mask processing makes mask proportions of the mask training samples unfixed, and the mask training samples each are used to train a pretrained language model PLM. Training the PLM by using the mask training samples whose mask proportions are unfixed can enhance mode diversity of the training samples of the PLM. Therefore, features learned by the PLM are also diversified, a generalization capability of the PLM can be improved, and a natural language understanding capability of the PLM obtained through training can be improved.

Abstract: The process of making a lithium ion battery cathode comprises the step of forming a slurry of an active material, a nano-size conductive agent, a binder polymer, a solvent and a dispersant. The solvent consists essentially of one or more of a compound of Formula 1, 2, or 3, and the dispersant comprises an ethyl cellulose.

Abstract: A user terminal positioning method is used in an edge cloud server, and includes: receiving satellite positioning information sent by a user terminal; determining a location service area in which the user terminal is located; on the basis of the location service area, acquiring a differential correction model corresponding to the location service area from a public cloud server; using the satellite positioning information and the differential correction model to implement location calculation to obtain location information of the user terminal; and sending the location information to the user terminal.

Abstract: A display panel, crack detection method therefor, and display device. The display panel comprises a display area (100) provided with at least one first data line (101) and at least one second data line (102), and peripheral area (200) surrounding the display area and provided with a first crack detection line, second crack detection line, first detection switch circuit (51), and second detection switch circuit (52); the first crack detection line and second crack detection line are in different functional layers; the first crack detection line has a first end (A) electrically connected to a first test end and a second end (C) electrically connected to first detection switch circuit; the second crack detection line has a first end (B1) electrically connected to a third node (B) that is different from the first end (A) and second end (C), and a second end (A1 electrically connected to second detection switch circuit.

Abstract: A method for processing LBT monitoring failures, a method for transmitting preambles, apparatuses thereof and a system. The method for processing LBT monitoring failures includes: a physical layer of a terminal equipment performs LBT monitoring, and indicates an LBT monitoring failure or random access preamble transmission drop or an LBT detection instance failure to an MAC layer or an RRC layer when the physical layer deems that the LBT monitoring fails; and the MAC layer or RRC layer of the terminal equipment performs at least one piece of the following processing according to the indication: performing resource selection; triggering channel selection or BWP switching; triggering a radio link failure; triggering RRC connection reestablishment; and performing counter maintenance.

Abstract: Embodiments of this application provide a voice interaction method and an electronic device, and relate to the field of artificial intelligence AI technologies and the field of voice processing technologies. A specific solution includes: An electronic device may receive first voice information sent by a second user, and the electronic device recognizes the first voice information in response to the first voice information. The first voice information is used to request a voice conversation with a first user. The electronic device may have, on a basis that the electronic device recognizes that the first voice information is voice information of the second user, a voice conversation with the second user by imitating a voice of the first user and in a mode in which the first user has a voice conversation with the second user.

Abstract: The present invention provides a quinoline derivative for treating triple-negative breast cancer and use thereof in preparing a pharmaceutical composition for treating a tumor.

Abstract: A moving part of a maglev train, comprising two levitation frames that are arranged at an interval along the direction of travel, the two levitation frames being connected by means of a vertical beam; a peripheral wall of the vertical beam provided with a slot that may reduce the torsional rigidity thereof, being capable of reducing the torsional rigidity of the traditional vertical beam so as to reduce the coupling effect between the two levitation frames that are connected by means of the vertical beam, thereby greatly reducing the difficulty and energy consumption of levitation control. The levitation frames and the train body are provided therebetween with a vertical shock absorber and a horizontal absorber having suitable damping values, the levitation frames and the train body are provided therebetween with horizontal stoppers and vertical stoppers which may prevent excessive horizontal movement, rollover and overturning.

Abstract: A laser shock and supersonic vibration extrusion co-strengthening device and method. The device comprises a laser assembly, a vibration assembly, a hydraulic assembly and a connecting assembly.

Abstract: The invention discloses a plotting method for a three-dimensional time-space diagram showing a regional green-wave coordinated control effect. The plotting method includes the following steps: establishing a coordinate system of the three-dimensional time-space diagram; determining a specific position coordinate of each intersection in the coordinate system of the three-dimensional time-space diagram; generating a time prism of a signal timing plan of each intersection; determining a green-wave bandwidth of each arterial road; and generating a driving trajectory between the intersections, and making a green-wave band of each arterial road, and completing plotting.

Abstract: The disclosure relates to a series of substituted imidazolecarboxamide compounds of formula I as BTK (Bruton's Tyrosine Kinase) inhibitors, and the methods of using the same for the treatment of autoimmune disease, inflammatory disease, cancer and potentially allergies.

Abstract: A display panel and a display device are provided. The display panel includes: a sub-pixel including a pixel circuit and a light-emitting element, the light-emitting element including a first electrode; a first insulating layer, the first electrode being connected with the pixel circuit through a first via hole penetrating the first insulating layer; a pixel definition layer including an opening; the first electrode includes a main body portion and a connecting portion, the main body portion is at least partially overlapped with the opening, the connecting portion is at least partially overlapped with the first via hole, a size of the connecting portion at the first via hole in a first direction is ? to ? of a size of the main body portion in the first direction.