Abstract: Disclosed are a liquid crystal composition and a liquid crystal display device. The liquid crystal composition comprises at least one compound of general formula I, at least one compound of general formula II, at least one compound of general formula III, and at least one compound of general formula IV. By compounding the four compounds, the composition can have advantages of a wide temperature range of nematic phase, a low viscosity and a low threshold voltage, and the liquid crystal display element can have a short response time and great power saving performance.

Abstract: A polyimide film and a flexible display device cover substrate using the same are provided, and the polyimide film includes a polyimide and a blue infrared absorbing agent. The blue infrared absorbing agent includes cesium tungsten oxide, tungsten oxide, Prussian blue, or antimony tin oxide. The blue infrared absorbing agent has infrared absorbing and photothermal conversion effects, and the surface temperature of the polyimide resin may be increased by infrared irradiation, so as to shorten the baking time.

Abstract: The present disclosure relates to an inkjet printing ink and application thereof. In one aspect, the inkjet printing ink includes a crosslinking type organic host material, an organic doped luminescent material, a surface tension modifier, a viscosity modifier, and a solvent. On the other aspect, the present disclosure provides printing the inkjet printing ink on a substrate of a display panel to be prepared, performing drying process, and performing baking process at 120° C. to form an organic light emitting layer. Therefore, avoiding the problem of mutual dissolution of the organic light emitting layer and the electron transport layer when the electron transport layer is printed on the organic light emitting layer, avoiding damage to the organic light emitting layer, realize an inkjet printing process of the organic electron transport layer, thereby reducing the cost of manufacturing.

Abstract: A power conversion circuit includes a first switch branch, a second switch branch, a third switch branch, a filter branch, and a first capacitor. A first terminal of the first capacitor is connected to a power source through the first switch branch, and a second terminal of the first capacitor is grounded through the second switch branch. The filter branch includes a filter inductor and a filter capacitor. A first terminal of the filter inductor is connected to the first terminal of the first capacitor, and a second terminal of the filter inductor is connected to a first terminal of the filter capacitor. A second terminal of the filter capacitor is grounded, and the filter capacitor is connected in parallel with the load. The third switch branch is connected between the second terminal of the first capacitor and the second terminal of the filter inductor.

Abstract: The application provide a packet sending method, a router, and a service switching entity. According to the application, a router determines a flow group identifier of a service packet and information about a next-hop service switching entity according to a user identifier and IP 5-tuple information; and forwards the packet to the next-hop service switching entity according to the information about the next-hop service switching entity, so that the next-hop service switching entity determines a corresponding destination service instance according to the user identifier, the flow group identifier, a router identifier, and a processing result, and forwards the packet to the destination service instance, to perform corresponding service processing, thereby implementing service packet forwarding among service instances. The router in the method provided in the embodiments has a flow steering function, and steers a flow to a specified path to perform node-by-node processing.

Abstract: An antenna selection method includes selecting M1 antenna sets from CN-L1L2 antenna combinations, where L1 is a quantity of reserved antennas, a sum of L1 and L2 is equal to L, determining an antenna set with a maximum channel capacity, in M2 antenna sets, as a target antenna set to perform a preset-duration data transmission, where the M2 antenna sets are antenna sets formed by the M1 antenna sets and the L1 reserved antennas. The L1 reserved antennas include a maximum SNR in a target antenna set used in previous preset-duration data transmission. Each of the M2 antenna sets includes the L1 reserved antennas.

Abstract: An amplifying circuit and a rectifying antenna are provided. The amplifying circuit includes: a first rectifying circuit, configured to output a first direct current signal according to a first alternating current signal; a second rectifying circuit, configured to output a second direct current signal according to a second alternating current signal; a differential amplifying circuit, configured to receive the first direct current signal and the second direct current signal, amplify a difference between the first direct current signal and the second direct current signal, and output an amplified difference between the first direction current signal and the second direct current, the first direct current signal and the second direct current signal have directions opposite to each other.

Abstract: A time-of-flight identification system and method for warehousing and freight transportation are provided by assembling an optical identification device in a container. The optical identification device includes a first, a second, and a third image capturing units, a beam receiving and calibrating unit, an estimation and processing unit, a transmission module and a power supply module. The optical identification device is connected to a monitoring device via signals; wherein the optical identification device is used to perform multi-segment space flight time identification method for logistics managers or inventory personnel to check whether inventory personnel correctly store the goods in storage space inside the container; to improve space utilization rate for the container. The present invention can be installed in: truck container, refrigerated truck container, truck rear cargo container, port centralized container, so as to promote cargo management efficiency and safety.

Abstract: Disclosed is a rotation mechanism (4) for an electric balance car. The rotation mechanism connects a left car body and a right car body of the electric balance car, and comprises a rotary shaft (40), a sleeve ring (41) and a bearing (42), wherein the sleeve ring (41) is fixedly connected to one side of the rotary shaft (40), the bearing (42) is sheathed on the other side of the rotary shaft (40), and a limiting part (411) is protruded outwardly at a position of an outer edge of the sleeve ring (41). Also disclosed is an electric balance car, comprising the rotation mechanism (4). The rotation mechanism of the electric balance car has a firm and reliable structure, operates smoothly, is convenient to install, and is durable.

Abstract: The disclosure provides a display panel and a manufacturing method thereof. The method includes: forming a main gate and a sub-gate on a glass substrate, wherein at least a portion of the sub-gate includes a light transmissive area; sequentially forming a gate insulating layer, a semiconductor layer, and a second metal layer on the sub-gate, patterning the semiconductor layer to obtain a main active layer and a sub-active layer, and patterning the second metal layer to obtain a main source/drain and a sub-source/drain.

Abstract: The present application provides a display panel comprising a substrate and a plurality of film layers disposed on the substrate in sequence, and at least one of the film layers having a patterned structure, wherein the display panel has at least a first location and a second location different from the first location, and the film layers arranged in a thickness direction of the display panel at the first location are different from the film layers arranged in a thickness direction of the display panel at the second location, a first optical length L1 at the first location and a second optical length L2 at the second location meet the following conditions: L1=d1*n1+d2*n2+ . . . +di*ni, L2=D1*N1+D2*N2+ . . . +Dj*Nj, (m??)??L1?L2?(m+?)?, wherein ? is a constant between 380 nm and 780 nm; m is a natural number; and ? is a constant between 0 and 0.2.

Abstract: A resource indication method includes generating, by a network device, first control information, where the first control information is used to indicate a frequency resource occupied to transmit data in N time resource units, and N is a positive integer greater than or equal to 2; and sending, by the network device, the first control information to a terminal device. Therefore, the network device may indicate, for the scheduled N time resource units, the frequency resource occupied to transmit data in the N time resource units.

Abstract: A data transmission method includes: receiving, by a user equipment (UE), first indication information from a wireless access device, where the first indication information is activation indication information or deactivation indication information; and when the first indication information is the activation indication information, executing, by the UE, a processing operation; or when the first indication information is the deactivation indication information, stopping, by the UE, the processing operation; where the processing operation includes at least one of a duplication operation and a switching operation; the duplication operation means transmitting same data through a plurality of links; and the switching operation means selecting one from a plurality of links to perform data transmission.

Abstract: A wet connector for a downhole tool string includes an insulating material body, a conductive core and an insulating piston. The insulating material body is provided with a first chamber, and the first chamber is filled with insulating oil. A conductive core chamber of the conductive core is communicated with the first chamber. The insulating piston is hermetically connected to a first opening through a first sealing lip. When a male connector abuts against the insulating piston and moves toward the bottom of the conductive core chamber, the male connector is in contact with and electrically connected to the conductive core chamber and causes oil to flow from the conductive core chamber so that the insulating oil in the first chamber is compressed and a pressure of the insulating oil in the first chamber is enabled to be greater than a pressure of well fluid outside the wet connector.

Abstract: Described is an apparatus for supporting Over-The-Air Hardware Updates comprising a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to be fastened and electrically coupled in one or more regions to one or more respectively corresponding semiconductor dies. The second circuitry may be operable to configure the one or more regions of the first circuitry. The third circuitry may be operable to provide a set of wirelessly-received configuration instructions to the second circuitry.

Abstract: In a fault root cause determining method, a management device obtains a fault feature of a target network in which a fault occurs. The fault feature is determined based on a knowledge graph of the target network in which the fault occurs. The knowledge graph includes a network entity and an abnormal event entity. The abnormal event entity is connected to an abnormal network entity. The abnormal network entity is a network entity that generates an abnormal event in the target network. The abnormal event entity is configured to indicate the abnormal event generated by the abnormal network entity. A type of the network entity is a network device, an interface, a protocol, or a service. The management device determines a fault root cause of the target network based on the fault feature.

Abstract: A method for displaying a user interface of a head-mounted display device includes: displaying, on a display screen of the head-mounted display device, a graphic user interface which comprises a cursor; detecting, by an image sensor of the head-mounted display device, an operating gesture of a user wearing the head-mounted display device; and displaying the cursor at a predetermined fixed location of the graphic user interface, if no operating gesture is detected; and locating the cursor in the graphic user interface by tracking a characteristic identification point in the operating gesture, if the operating gesture is detected.

Abstract: The disclosure discloses a method and an apparatus for recognizing an entity word. The method includes: obtaining an entity word category and a document to be recognized; generating an entity word question based on the entity word category; segmenting the document to be recognized to generate a plurality of candidate sentences; inputting the entity word question and the plurality of candidate sentences into a question-answer model trained in advance to obtain an entity word recognizing result; and obtaining an entity word set corresponding to the entity word question based on the entity word recognizing result.