Abstract: This application discloses a channel estimation method, a reference signal sending method, an apparatus, and a system, and belongs to the communications field. The method includes: when a first precoding weight of a first reference signal and a second precoding weight of a second reference signal are the same, receiving, by a first network device, the first reference signal in a first time unit according to a first pattern, and receiving the second reference signal in a second time unit according to a second pattern; and performing, by the first network device, channel estimation on a channel in the second time unit.

Abstract: A system includes a voltage converter and a controller for controlling the operation of the voltage converter. The voltage converter includes a plurality of legs, wherein each leg includes a first and a second set of silicon (Si)-based power devices. The first set of Si-based power devices includes a first and second Si-based power devices connected to each other at a first interconnection node and the second set of Si-based power devices includes a third and fourth Si-based power devices connected to each other at a second interconnection node. The first and second set of Si-based power devices are coupled across a first and second DC voltage sources respectively. A first set of Silicon-Carbide (SiC) based power devices is coupled across the first and second interconnection nodes. The system also includes a snubber capacitor connected across the first and the second interconnection nodes.

Abstract: Disclosed are a method and device for detecting an abnormal load. The method includes: collecting data of each load item in all hosts; pre-processing to obtain a second sequence corresponding to each load item; obtaining a coefficient matrix and a detail vector; computing a weighted mean of abnormal load probabilities of all the coefficient vectors, to obtain an abnormal load probability of each second sequence; comparing the abnormal load probability with a confidence interval, and judging whether there is an abnormal load, and judging that there is no abnormity in the corresponding second sequence if the abnormal load probability of each second sequence is in the confidence interval; judging whether there is an abnormal load according to data of all load items and the abnormal load probability of each second sequence; and finding a bearing host that has the abnormal load from the current online service.

Abstract: The present disclosure relates to beam configuration methods and apparatus. One example method include receiving, by a terminal, beam configuration information from a network device, where the beam configuration information is used to instruct the terminal to transmit a signal by using a first beam, and transmitting, by the terminal, the signal by using at least the first beam when a first preset duration starting from a time point expires, where the first time point is a time point at which the terminal sends an acknowledgement (ACK) message for the beam configuration information to the network device.

Abstract: The present disclosure relates to a detachable flexible display structure, a flexible display screen, a method of manufacturing the same, and a display device. The detachable flexible display structure, having an active area and a non-active area arranged on outside of the active area, includes: a support substrate having a surface in the non-active area provided with a rib; and a flexible display screen formed on the support substrate and detachable from the support substrate. The flexible display screen is formed with an arch portion for covering the rib at a position corresponding to the rib so that the flexible display screen can be bent at the arch portion. The above detachable flexible display structure can reduce the stress generated at the arch portion when the flexible display screen is bent, so that it can prevent the peripheral metal trace from breaking, which improves the reliability of the flexible display.

Abstract: A channel information sending method, a data sending method, and a device are provided, to improve feedback precision of a precoding matrix. A first device includes: a receiving module, configured to receive a reference signal; a processing module, configured to measure the reference signal to obtain first channel information and second channel information; and a sending module, configured to send the first channel information and the second channel information. When generating the precoding matrix, the second device may perform weighted combination on M first vectors based on the weighted combination factor indicated by the received second channel information, instead of selecting only one eigenvector from a plurality of eigenvectors, so that the generated precoding matrix is more precise.

Abstract: A method for shutting down a phase-leg of a three-level active neutral point clamped converter is provided. The method includes the following steps. A determining step determines if a switch fault has occurred, and if a switch fault has occurred then each switch of the plurality of switches are turned off. If a switch fault has not occurred and a shutdown is requested, then an operating step operates the plurality of switches to turn off a first switch and a fourth switch. A waiting step waits for a first predetermined time period. An operating step operates the plurality of switches to turn on a second switch and a third switch. A waiting step is repeated. An operating step operates the plurality of switches to turn off a fifth switch and a sixth switch. A waiting step is repeated. An operating step turns off the second switch and the third switch.

Abstract: A gate on array (GOA) circuit and a built-in touch display panel are provided. The GOA circuit collects a scan signal from a GOA unit, detects whether the scan signal from the GOA unit is abnormal in order to identify an abnormal GOA unit, and then restores a scan signal from the abnormal GOA unit. Thus, it is ensured that the GOA circuit can output driving signals normally, and product yield is increased.

Abstract: Communication methods and apparatuses are provided. A method may include: obtaining at least a part of a communication message in a communication session page of a communication application, the communication session page being used for conducting communications between an end user and at least one peer user; performing content recognition of the communication message; and configuring a to-be-sent message corresponding to a message sending control in the communication session page, so that the to-be-sent message matches a content recognition result for the communication message. Using the technical solutions of the present disclosure, the efficiency of communications can be improved.

Abstract: Disclosed herein is a polynucleotide construct comprising one or more nuclease recognition sequences upstream and downstream of a Gene editing multi-site that comprises a plurality of nuclease recognition sequences. The plurality of nuclease recognition sequences facilitate insertion of one or more exogenous donor genes into the host cell.

Abstract: Disclosed herein is a polynucleotide construct comprising one or more primary endonuclease recognition sequences upstream and downstream of a multiple gene editing site that comprises a plurality of secondary endonuclease recognition sequences. The primary endonuclease recognition sequences facilitate insertion of the multiple gene editing site into a host cell genome. The secondary endonuclease recognition sequences facilitate insertion of one or more exogenous donor genes into the host cell.

Abstract: A channel state information sending method, a channel state information receiving method, and a device are disclosed, to reduce resource overheads required when a terminal device feeds back CSI to a network device in a scenario of a high precision codebook-based precoding matrix. The method includes: determining, by a terminal device, a precoding matrix W; sending, by the terminal device, a signal including CSI to a network device; obtaining, by the network device, an RI and indication information based on the signal including the CSI; obtaining, by the network device, a PMI2 based on the RI and the indication information; and determining, by the network device, the precoding matrix W based on the rank indicator RI and the second precoding matrix indicator PMI2.

Abstract: The present invention provides a pixel driving circuit, a display apparatus and a terminal. The pixel driving circuit includes: a light-emitting device, an enabling unit, a first transistor and a second transistor. When the light-emitting device illuminates, saturated current passing through the light-emitting device is relevant to the power voltage and the grayscale data voltage. Through embodiment of the present invention, saturated current passing through the driving transistor is relevant to the power voltage and the grayscale data voltage. Furthermore, both the power voltage and the grayscale data voltage are fixed values, that is, current passing through the light-emitting device is guaranteed to the constant. Therefore, current passing through the light-emitting device is no longer affected by the threshold voltage of the driving transistor and non-uniform pixel color could be avoided, accordingly, image uniformity of display with light-emitting device (e.g., OLED) raises, and so does display quality.

Abstract: Disclosed are systems and methods for acquiring height of a stereo camera, applied to the stereo camera. An example method includes acquiring angle information of a stereo camera, with the angle information including a pitch angle and a tilt angle. A ground image of a scenario where the stereo camera is deployed is captured and depth information of each pixel on the ground image is determined. A three-dimensional point set based on depth information of each pixel on the ground image is established, with the three-dimensional point set including coordinate information of each three-dimensional point corresponding to each pixel of the ground image. Height of the stereo camera is determined based on the angle information and the three-dimensional point set.

Abstract: The present disclosure provides a protective device related to the field of battery technology. The protective device includes an electronic switch, a mechanical switch and a time logic circuit. A first output terminal of the time logic circuit is connected to the electronic switch; a second output terminal of the time logic circuit is connected to the mechanical switch; an input terminal of the time logic circuit is connected to an output terminal of a power supply; and the electronic switch is connected in series with the mechanical switch into a circuit under control. The protective device provided in the present disclosure can effectively reduce the damage of the mechanical switch and extend the service life of the mechanical switch.

Abstract: Account information, input by a user for data transfer, is received. Identity information associated with the received account information is determined. One or more pieces of account information associated with the determined identity information are determined. The one or more pieces of account information are determined based on a predetermined condition. The one or more pieces of account information include the received account information. The one or more pieces of account information are provided to the user. In response to receiving a user confirmation of the one or more pieces of account information, the data transfer is performed based on the user confirmation.

Abstract: This application provides a channel state information transmission method, an access network device, and a terminal device. The method includes: receiving, by an access network device, CSI reported by a terminal device, where the CSI includes a first PMI and a second PMI; and determining, by the access network device based on the first PMI and the second PMI, a precoding matrix W whose rank is greater than or equal to 2, where W meets W=W1×W2, and the second PMI is used to indicate some column vectors in W2. According to the method in the embodiment, overheads of feeding back the CSI by the terminal device are effectively reduced.

Abstract: Disclosed are an extruded honeycomb catalyst, a process for preparing the catalyst, a method for reducing NOx in the exhaust gas from an internal combustion engine by using the catalyst, and a method for treatment of the emission gas generated from power plant comprising exposing the emission gas to the catalyst.

Abstract: This application provides a transmission method, a network device, and a terminal, to save resources. The method includes: determining, by a network device, downlink control information DCI, wherein the DCI includes a first request field, information in the first request field is only used to instruct to send a first reference signal on a first resource, or the information in the first request field is used to instruct to send the first reference signal on the first resource and instruct a terminal to report a measurement result of the first reference signal on the first resource, and the measurement result includes channel state information CSI and/or beam state information BSI; and sending, by the network device, the DCI to the terminal.