Abstract: A data processing method includes: determining, by a PDCP entity of a terminal, at least one first transmission path corresponding to PDCP duplication that needs to be changed from an activated state to a deactivated state, from a transmission path set corresponding to PDCP duplication and including at least one transmission path currently in an activated state; and indicating, by the PDCP entity of the terminal, to a RLC entity corresponding to the first transmission path to discard duplicated data, in a case where the at least one first transmission path is not all transmission paths in the transmission path set. The transmission path set comprises at least one transmission path and a main transmission path.

Abstract: A service node updating method is provided. The method is performed by a terminal device and includes: receiving configuration information, where the configuration information includes first connectivity configuration information used to maintain both a connection to a source node and a connection to a target node in a service node updating procedure and second connectivity configuration information used to release the connection to the source node and connect to the target node; processing, by applying the first connectivity configuration information, a layer 2 protocol entity corresponding to a bearer between the terminal device and the source node, to reconfigure the bearer as a source node split bearer; and processing, by applying the second connectivity configuration information, a layer 2 protocol entity corresponding to the bearer, to reconfigure the source node split bearer as a target node bearer.

Abstract: Provided are a vibration object monitoring method and apparatus, a computer device, and a storage medium. The method includes: in response to detecting that a vibration object exists in a monitoring video picture for a target monitoring region, a vibration object region in the monitoring video picture is determined, where the vibration object region is a region where the vibration object is located in the monitoring video picture; displacement information of a key point of the vibration object in the vibration object region is recorded; vibration information of the vibration object in the monitoring video picture is determined based on the displacement information; and a vibration object monitoring result for the target monitoring region is generated according to the vibration information. The abnormal vibration monitoring can be performed on the vibration object in the target monitoring region in time according to this method.

Abstract: An Ethernet frame transmission method and a communications device are provided. The method includes: removing a specified field from an Ethernet frame; and transmitting the Ethernet frame with the specified field removed to a second device.

Abstract: Disclosed in the present invention is a polyether polyol refining method, comprising (1) neutralising or diluting crude polyether polyol to obtain a mixed solution; (2) flowing the mixed solution through a hydrophilic medium to aggregate same into a first density phase liquid and a second density phase liquid, the first density phase liquid being an aqueous solution containing alkaline metal ions and/or alkaline earth metal ions, and the second density phase liquid being polyether polyol; and (3) allowing the first density phase liquid to settle and separating same from the second density phase liquid to obtain refined polyether polyol. In the present refining method, using the hydrophilic medium for one-step removal of the alkaline ions and water in the polyether polyol simplifies the treatment steps, increases treatment efficiency, and can prevent polyether polyol loss; the obtained polyether polyol has low alkaline ion content and little odour.

Abstract: An application of maize raffinose synthase (ZrnRAFS) gene in maize to improve heat stress tolerance of crops is provided. The nucleotide sequence of the ZrnRAFS gene is shown in SEQ ID NO: 1, and the protein sequence encoded by the ZrnRAFS gene is shown in SEQ ID NO: 2. The ZrnRAFS gene is overexpressed in plants, raffinose is synthesized by using sucrose and galactinol, which increases the content of raffinose in maize leaves and improves the heat stress tolerance of maize.

Abstract: An output driver is disclosed that can include a delay generator configured to produce a plurality of delay signals in response to an input signal; a pre-driver configured to produce a plurality of control signals based on the plurality of shifted delay signals; and a main driver configured to couple to a channel with an asymmetric termination and provide an output signal at a node of the main driver based in response to the plurality of control signals, wherein the plurality of control signals provides for an asymmetric response in the main driver in response to the asymmetric termination. In some embodiments, an asymmetric switching sequence can be included. In some embodiments, a pull-up diode can be engaged. In some embodiments, the output driver is arranged to operate with core voltages and core transistors.

Abstract: Digital signal processing for mud pulse telemetry utilizes a variety of “On/Off” keying based modulation schemes, such as pulse width modulation (PWM) and pulse position modulation (PPM), to encode and/or decode information. A combination of PPM and PWM is disclosed that increases a bit rate while keeping a chip rate unchanged. The combination of PPM and PWM comprises determining a drilling condition and forming a message based on the drilling condition, forming a string of symbol values comprising the message, identifying a pulse width and a pulse start for the pulse based on a symbol value, providing a first pulse at a selected chip location, providing subsequent pulses to form the pulse width, and forming a quiet period at the end of the pulse width.

Abstract: This application provides a speaker apparatus includes: a speaker sound emission unit that includes a speaker diaphragm and configured to convert an electrical signal into a sound signal by using the speaker diaphragm; a horn includes a sound inlet and a sound outlet, the speaker sound emission unit is disposed on the sound inlet, and the horn is configured to amplify the sound signal and then propagate an amplified sound signal through the sound outlet; and a phase plug, configured to adjust a phase and/or an amplitude of the sound signal from the sound inlet; where relative locations of the speaker diaphragm and the phase plug remain unchanged to form an incompressible air cavity.

Abstract: Disclosed in the present invention is a polyether polyol refining method, comprising (1) neutralising or diluting crude polyether polyol to obtain a mixed solution; (2) flowing the mixed solution through a hydrophilic medium to aggregate same into a first density phase liquid and a second density phase liquid, the first density phase liquid being an aqueous solution containing alkaline metal ions and/or alkaline earth metal ions, and the second density phase liquid being polyether polyol; and (3) allowing the first density phase liquid to settle and separating same from the second density phase liquid to obtain refined polyether polyol. In the present refining method, using the hydrophilic medium for one-step removal of the alkaline ions and water in the polyether polyol simplifies the treatment steps, increases treatment efficiency, and can prevent polyether polyol loss; the obtained polyether polyol has low alkaline ion content and little odour.

Abstract: Digital signal processing for mud pulse telemetry utilizes a variety of “On/Off” keying based modulation schemes, such as pulse width modulation (PWM) and pulse position modulation (PPM), to encode and/or decode information. A combination of PPM and PWM is disclosed that increases a bit rate while keeping a chip rate unchanged. The combination of PPM and PWM comprises determining a drilling condition and forming a message based on the drilling condition, forming a string of symbol values comprising the message, identifying a pulse width and a pulse start for the pulse based on a symbol value, providing a first pulse at a selected chip location, providing subsequent pulses to form the pulse width, and forming a quiet period at the end of the pulse width.

Abstract: Systems and methods for digital signal processing are provided. A method includes mapping a symbol in a pulse sequence by using a pulse width and a pulse start in the symbol, reading a message using a symbol value for each symbol in a string of symbols, and modifying a drilling configuration according to the message. A device configured to perform the above method is also provided.

Abstract: Systems and methods for filtering pump interference in mud pulse telemetry are provided. A method includes receiving a monitor output, selecting an adaptive factor in an adaptive filter module, and adjusting the adaptive factor when the adaptive filter module has reached convergence. The method may further include receiving a sensor input, providing a filtered signal output, and modifying a drill configuration based on the signal output. A system configured to perform the method above is provided. A method as above further including modifying a drill configuration based on the signal output is provided.

Abstract: Systems and methods for filtering pump interference in mud pulse telemetry are provided. A method includes receiving a monitor output, selecting an adaptive factor in an adaptive filter module, and adjusting the adaptive factor when the adaptive filter module has reached convergence. The method may further include receiving a sensor input, providing a filtered signal output, and modifying a drill configuration based on the signal output. A system configured to perform the method above is provided. A method as above further including modifying a drill configuration based on the signal output is provided.

Abstract: A networking device includes a packet header protect generator, a transmitter, a receiver, a decoder and router. The transmitter transmits a data packet to the receiver. The data packet includes a data packet header. The packet header protection generator is arranged to toggle selected bits of a protected portion of the data packet header and generate a data integrity signature. The receiver receives the data packet and generates a received data integrity signature. The decoder computes a locally computed data integrity signature in response to the protected portion of the received data packet header. The locally computed data integrity signature is compared with the received data integrity signature. The router selects a portion of a routing path in response to whether a data packet forwarding destination includes a decoder arranged to compute a locally computed data integrity signature.

Abstract: A scalable communication system for data transmission in oil and gas well applications. The communication system includes a high-speed fiber optic line connecting a surface module to a downhole module. The downhole module is further connected to a tool bus which in turn is connected to one or more tool modules. Each tool module permits communication of data to and/or from one or more downhole tools. A broadband signal comprising multiple channels may be used to transmit data to and from the tool modules.

Abstract: Systems and methods for digital signal processing are provided. A method includes mapping a symbol in a pulse sequence by using a pulse width and a pulse start in the symbol, reading a message using a symbol value for each symbol in a string of symbols, and modifying a drilling configuration according to the message. A device configured to perform the above method is also provided.

Abstract: A range-pattern-matching-type DRC-based process hotspot detection is provided that considers edge tolerances and incomplete specification (“don't care”) regions in foundry-provided hotspot patterns. First, all possible topological patterns are enumerated for the foundry-provided hotspot pattern. Next, critical topological features are extracted from each pattern topology and converted to critical design rules using Modified Transitive Closure Graphs (MTCGs). Third, the extracted critical design rules are arranged in an order that facilitates searching space reduction techniques, and then the DRC process is sequentially repeated on a user's entire layout pattern for each critical design rule in a first group, then searching space reduction is performed to generate a reduced layout pattern, and then DRC process is performed for all remaining critical design rules using the reduced layout pattern.

Abstract: An apparatus having a first circuit and a second circuit. The first circuit may be configured to buffer an input signal received as a single-ended signal from a data bus connected between a memory channel and a memory controller. The second circuit may be configured to condition the input signal relative to a reference voltage to generate a differential signal. The reference voltage may be isolated from the second circuit in response to a transition from a power down condition to a power on condition.

Abstract: A range-pattern-matching-type DRC-based process hotspot detection is provided that considers edge tolerances and incomplete specification (“don't care”) regions in foundry-provided hotspot patterns. First, all possible topological patterns are enumerated for the foundry-provided hotspot pattern. Next, critical topological features are extracted from each pattern topology and converted to critical design rules using Modified Transitive Closure Graphs (MTCGs). Third, the extracted critical design rules are arranged in an order that facilitates searching space reduction techniques, and then the DRC process is sequentially repeated on a user's entire layout pattern for each critical design rule in a first group, then searching space reduction is performed to generate a reduced layout pattern, and then DRC process is performed for all remaining critical design rules using the reduced layout pattern.