Abstract: A communication method and apparatus. The method includes: a terminal device receives a first parameter from a network device, where the first parameter is used to determine indication information of a first precoding matrix and a second parameter, and the second parameter is used to determine indication information of a second precoding matrix; and then, the terminal device sends the indication information of the second precoding matrix to the network device. The method and the apparatus may be used to determine indication information of a precoding matrix when a rank indicator value reported by the terminal device is 3 or 4.

Abstract: A grafted polypropylene resin is prepared by a grafting reaction of a polar monomer capable of absorbing microwave so as to raise its temperature in a microwave field to more than 200° C. and a solid polypropylene resin using microwave irradiation without adding an initiator. The polar grafted polypropylene resin that does not contain initiator residues and does not have a significant reduction in molecular mass compared with a resin before grafting is obtained.

Abstract: An unmanned aerial vehicle (UAV) control method includes obtaining target flight data and current flight data; determining a control state variable based on the target flight data and the current flight data; and calibrating a center of gravity of the UAV based on the control state variable.

Abstract: A method of point cloud geometry encoding includes receiving a slice of a point cloud frame for encoding, and constructing an octree representing a geometry of points in a bounding box of the slice where a current node of the octree is partitioned with a quadtree (QT) partition or a binary tree (BT) partition. The constructing includes determining a value of a partitionSkip variable specifying a partition type and a partition direction of the current node of the octree.

Abstract: A stroller comprising a frame having an unfolded state and a folded state, a front wheel assembly, a rear wheel assembly, a locking mechanism for locking the frame in the unfolded state, and the frame comprises: a front wheel support, a rear wheel support, a telescopic push rod assembly, a basket rod, a seat rod and a supporting rod. The locking mechanism comprises a first locking mechanism for locking the relative positions of the upper push rod and the lower push rod, and a second locking mechanism for locking the relative positions of the lower push rod and the sliding sleeve, the second locking mechanism comprises a retractable lock tongue arranged on the lower push rod and a lock hole arranged on the sliding sleeve.

Abstract: An electrical connector assembly includes a pair of electrical connectors for electrically connecting to one another to close an electric circuit. The assembly further includes a connection indicator attached to one or more of the electrical connectors. The connection indicator generates a feedback, in response to the electrical connectors being one of connected to one another and disconnected from one another. The connection indicator is separate from the electric circuit, and the feedback is at least one of a radio frequency signal (RF signal), an electronic signal, a visible light, and an acoustic signal.

Abstract: The present invention discloses a multiblock copolymer with narrow molecular weight distribution and a preparation method therefor. According to the present disclosure, a series of multiblock copolymers with narrow molecular weight distribution are prepared by adopting a reversible addition chain transfer free radical polymerization technology in an emulsion polymerization system by controlling the feeding sequence of monomers. The molecular weight of the series of multiblock copolymers meets theoretical expectations, the content of dead polymers is low, and the mechanical properties are greatly improved compared with the traditional triblock copolymers.

Abstract: The disclosure relates to an omni-directional horizontally oriented deflecting tool for a coiled tubing, which includes an inner central pipe, an outer central pipe, a conical outer cylinder, a piston outer cylinder, an anchoring mechanism, a sealing mechanism, a reversing mechanism and a steering mechanism. The anchoring mechanism includes a cone, an O-shaped sealing ring I, a cone spring, a slip, a slip spring, a slip seat, a claw I and a pin shaft I, and the sealing mechanism includes a piston, an O-shaped sealing ring II, a claw II, a pin shaft II, an upper rubber cylinder seat, a rubber cylinder, a connecting cylinder, a lower rubber cylinder seat and a gasket.

Abstract: An information transmission method includes: A terminal receives first signaling, where the first signaling includes a first field, a state value of the first field is used to indicate a first spatial relation parameter for receiving a first channel, the state value of the first field is a candidate state value corresponding to the first field, and at least one of the candidate state values corresponds to two or more spatial relation parameters. The terminal obtains one or more target spatial relation parameters in the first spatial relation parameter, and receives the first channel based on the one or more target spatial relation parameters. In this method, the terminal receives the first channel by receiving the first signaling sent by a base station and obtaining a target spatial relation parameter.

Abstract: A system and method predicts performance of a circuit design by receiving circuit design training data and circuit design test data. The circuit design training data includes training nodes and training paths. The training paths connect the training nodes including circuit components. The circuit design test data includes a first test node and a second test node. Further, testing information is determined for the circuit components of each training path from the circuit design training data. A statistical representation of the circuit design test data is determined based on the testing information and the circuit design test data, and first test information for a test path connecting the first test node with the second test node is determined based on the statistical representation.

Abstract: This application provides an example communication method and an example apparatus. The method includes a first network device generates first indication information to indicate a first downlink resource. Second indication information indicates a second downlink resource. Because the first indication information may indicate whether the second indication information exists, if a terminal device detects the first indication information in the first time unit, and the first indication information indicates that the second indication information does not exist in the first time unit, the terminal device may stop a blind detection process on the second indication information in advance.

Abstract: Aspects of the disclosure provide for the determining whether to assign a driver to a trip. For instance, a route for a trip between a pickup location and a destination location for a passenger may be determined. Branch routes for the route may be determined based on one or more lane changes of the route. A probability of following each determined branch route may be determined. A probability of requiring assistance for each determined branch route may be determined. Whether to assign a driver to the trip may be determined based on the probabilities for each determined branch route. A vehicle of a fleet of vehicles may be assigned to the trip based on the determine of whether to assign a driver.

Abstract: Provided are methods for clinical treatment of Membranoproliferative glomerulonephritis (MPGN) by administering an anti-C5 antibody, or antigen binding fragment thereof.

Abstract: A communication method includes reporting fourth and fifth band sets. The fourth band set and the fifth band set include a twelfth band and a thirteenth band. A maximum quantity of layers supported by uplink transmission on the twelfth band of the fourth band set is 1. A maximum quantity of layers supported by uplink transmission on the thirteenth band of the fourth band set is 2. A maximum quantity of layers supported by uplink transmission on the twelfth band of the fifth band set is 2. A maximum quantity of layers supported by uplink transmission on the thirteenth band of the fifth band set is 2. The method also includes receiving fourth information that indicates transmitter (Tx) switching on the twelfth band and the thirteenth band. The method further includes performing Tx switching on the twelfth band and the thirteenth band based on parameters of a sounding reference signal.

Abstract: The present disclosure discloses a heat exchange pipe, a heat exchanger and a water heating apparatus. The heat exchange pipe comprises: a pipe body and a plurality of fins fixedly disposed to sleeve the pipe body; a flow guiding structure is provided at a partial outer edge of the fin; and a flow guiding flue is formed between the flow guiding structure and an outer wall of the pipe body. The heat exchange pipe, the heat exchanger and the water heating apparatus provided by the present disclosure can improve the flue gas flow path and the heat exchange efficiency.

Abstract: A wireless charging transmitter, controller and system are disclosed. The transmitter has a full-bridge inverter having two full-bridge output nodes, a resonant circuit comprising a series arrangement of a transmitter inductor and a first capacitor, and a second capacitor in parallel with the series arrangement, a PI-filter coupled between the second capacitor and the full-bridge inverter; wherein the controller is configured to measure a Q-factor of the resonant circuit by: controlling the full-bridge inverter to connect an input voltage supply to the PI-filter to supply an excitation pulse to the resonant circuit; controlling the full-bridge inverter to disconnect the input voltage supply and initiate a resonance in the resonant circuit; controlling a switch in the full-bridge inverter to provide an reference ground to a first terminal of the transmitter inductor; and measuring a decay of the voltage at a second terminal of the transmitter inductor.

Abstract: The present disclosure relates to, inter alia, a method of treating a complement mediated disorder caused by a virus, e.g., corona virus; Dengue virus (DENY); Ross River vims (RRV) and/or influenza virus (flu) by administering an effective amount of a complement modulator, such as, e.g., C5 inhibitor, such as eculizumab or an eculizumab variant or a C5a inhibitor such as olendalizumab (ALXN1007) or a variant thereof, to the subject. In addition, the present disclosure relates to, inter alia, a method of treating human patients inflicted with severe coronavirus disease-2019 (severe COVID-19) who is undergoing treatment with eculizumab. The method includes measuring a level of circulating component C5b-9 (membrane attack complex), in the patient's blood sample to titrate an effective eculizumab dose for the treatment of COVID-19.

Abstract: The present disclosure describes a system and method for determining a function for a quality of results (QoR) for a circuit design. The method includes receiving a circuit design that includes a first node, a second node, and a connection between the first node and the second node in a design space, placing an array of points within the design space, sampling first field values of the circuit design at each point of the array of points, and determining a first sampled function based on the first field values. The method includes moving the array of points within the design space, sampling second field values of the circuit design at each point of the array of points, determining a second sampled function based on the second field values, and determining a function based on the first and second sampled functions. The function produces a QoR for the circuit design.

Abstract: A precoding matrix indication method and a related device. In the method, a transmit end can group K combination coefficients based on an amplitude value of each of the K combination coefficients, to obtain Q combination coefficient groups, and determine a phase value of each combination coefficient in each combination coefficient group. The amplitude value of each combination coefficient is determined by using a same amplitude quantization bit quantity and a same amplitude quantization rule. In addition, phase quantization bit quantities and/or phase quantization rules used by at least two of the Q combination coefficient groups are different.

Abstract: Provided are a flexible variable capacitor and method for preparation thereof. The flexible variable capacitor includes two highly conductive flexible electrode layers and an elastomer dielectric insulation layer disposed between the two highly conductive flexible electrode layers, wherein the highly conductive flexible electrode layers include first polymeric elastomer and carbon nanomaterial, and the elastomer dielectric insulation layer includes second polymeric elastomer and functional ceramic nanoparticles. The method for preparation of the flexible variable capacitor is as follows: first, preparing an elastomer composite film with different functions, and then pressing upper and lower electrode layers with the intermediate elastomer insulation layer together to obtain a stretchable strip-shaped plate capacitor.