Abstract: The technology of this application relates to an acknowledgement packet processing method, a communications apparatus, and a storage medium, to reduce an ACK sending frequency and improve data transmission efficiency. The acknowledgement packet processing method is applied to a first communications apparatus, and the method includes generating a first ACK packet based on an acknowledgement ACK mechanism supported by the first communications apparatus, where the ACK mechanism is used to indicate N ACK types corresponding to N ACK packets, a trigger condition required for sending each of the N ACK packets, and feedback information carried in each of the N ACK packets, the first ACK packet is one of the N ACK packets, and N is a positive integer greater than or equal to 2. The method further includes sending the first ACK packet to a second communications apparatus.

Abstract: This application provides a network measurement system and method, a device, and a storage medium. A control node obtains a measurement task and a first identifier, where the measurement task includes packet header information of a service packet, generates a measurement packet based on the packet header information and the first identifier, and delivers the measurement packet to a first measurement node. The first measurement node is configured to capture and parse the measurement packet to obtain first measurement information of the measurement packet, and send the first measurement information to an analysis node. The analysis node obtains a network measurement result based on the first measurement information.

Abstract: Systems and methods for automatic pain monitoring and assessment are described herein. In one example, the system may include a wearable facial expression capturing system that is placed over a subject's face. The system may be embedded with a plurality of sensors configured to detect biosignals from facial muscles and may additionally include a sensor node that recognizes facial expressions based on the detected biosignals. Pain experienced by the subject is assessed based on the facial expressions in conjunction with physiological signals obtained by other wearable sensors.

Abstract: The application discloses a network packet processing method and a network server. The method discloses that a network apparatus receives a first TCP packet sent by a client, where the first TCP packet includes a first quintuple and then the network apparatus determines a first thread that processes the first TCP packet according to the first quintuple and processes the first TCP packet by using the first thread.

Abstract: A data transmission method and related apparatuses are disclosed. A sanding node transmits a plurality of data packets to a receiving node at an initial transmission rate. Each data packet carries a random sequence number and a rolling sequence number. The random sequence number identifies a data part of the data packet, and the rolling sequence number indicates a transmission sequence of the data packet. The sending node receives a packet loss feedback from the receiving node. The packet loss feedback is generated after the receiving node detects a packet loss event according to rolling sequence numbers of received data packets. The sending node determines a random sequence number of a lost data packet based on the received packet loss feedback. The sending node transmits a replacement data packet to the receiving node. The replacement data packet carries a different rolling sequence number.

Abstract: Based on this application, one or more parameters for a multipath connection in a redundant transmission mode that are used to represent path characteristics are measured in the redundant transmission mode, and the one or more parameters are compared with a parameter that is measured in a multipath transmission mode and that is used to represent a path characteristic of an aggregated path of the connection at this time.

Abstract: According to one or more embodiments, a steer by wire steering system includes a handwheel, and a handwheel actuator configured to secure a position of the handwheel. The securing includes determining a transition of the steer by wire steering system to an ingress/egress mode. The securing further includes, based on the determination that the steer by wire steering system is in the ingress/egress mode, computing a holding torque command based on a difference in a present angle of the handwheel and a target angle of the handwheel, which is caused by an input torque. Further, the securing includes generating a holding torque corresponding to the holding torque command to secure the position of the handwheel.

Abstract: including, Acknowledgment information sent by a receive end to a transmit end includes a blacklist, or includes a blacklist and a whitelist. In other words, the receive end notifies, in time each time, the transmit end of information of a plurality of data packets that have not been received. In this way, the transmit end can retransmit the data packets to the receive end in time. The receive end indicates the whitelist to the transmit end, so that the transmit end can learn, in time, of a data packet newly received by the receive end. This avoids a bandwidth waste caused by invalid retransmission. In each round of retransmission, the transmit end retransmits a retransmission packet a plurality of times, and time for retransmission is inconsecutive. This avoids a retransmission failure caused by consecutive packet losses, and improves a retransmission success rate.

Abstract: The application discloses a network packet processing method and a network server. The method discloses that a network apparatus receives a first TCP packet sent by a client, where the first TCP packet includes a first quintuple and then the network apparatus determines a first thread that processes the first TCP packet according to the first quintuple and processes the first TCP packet by using the first thread.

Abstract: A method and apparatus for implementing a virtual local area network. The method includes determining a global virtual local area network for transmitting a broadcast data frame in response to receiving the broadcast data frame at a first switch, encapsulating the broadcast data frame based at least in part on said determination and transmitting it to at least one second switch over the determined global virtual local area network. The broadcast data frame is received at the second switch and an identifier of the global virtual local area network is obtained according to the broadcast data frame. Based at least in part on the identifier of the global virtual local area network, it is determined that which local virtual local area network served by the second switch the de-capsulated broadcast data frame can be sent to.

Abstract: Technical solutions are described for disturbance feedforward compensation technique for improving the disturbance rejection properties of a closed loop position control system using a cascaded control structure with an inner velocity and outer position control loops. According to one or more embodiments, a system includes a position controller that receives an input rack-position command, and a measured rack-position, and computes a velocity command based on a difference in the input rack-position command and the measured rack-position. The system further includes a velocity controller that receives the velocity command, and a measured motor velocity, and computes an input torque command based on a difference in the velocity command and the measured motor velocity. The system adjusts a position of a rack by generating an amount of torque corresponding to the applying the input torque command to a motor.

Abstract: Examples include techniques for backing up a file to long term “cold” storage by using circuitry, and logic for execution by the circuitry, to receive a request to back up the file in a distributed file system to cold storage, to copy the file from at least one data node of the distributed file system to cold storage, to set a location of the file in cold storage in a name node of the distributed file system, and to set a length of the file to zero in the name node.

Abstract: A heterogeneous multi-protocol stack system including a plurality of heterogeneous protocol stack instances is described. Resource allocation between the protocol stack instances is unbalanced, and algorithms are independently configured, so that QoS capacities of different protocol stack instances are different. Data packets of applications or connections with different QoS requirements can be dispatched by a dispatcher to corresponding protocol stack instances at a high speed. When system resources are limited, the heterogeneous multi-protocol stack system is capable of simultaneously supporting classification optimization processing performed on data of a high-concurrency application, a high-throughput application, and a low-delay application, so as to meet QoS requirements of different types of applications, thereby improving user experience.

Abstract: Technical solutions are described for disturbance feedforward compensation technique for improving the disturbance rejection properties of a closed loop position control system. According to one or more embodiments, a steering system includes a position controller that generates a torque command based on an input rack-position command and a measured position command. Further, a disturbance estimator that estimates a rack force acting on a rack, and an adder generates an adjusted torque command by adding the rack force that is estimated into the torque command. The steering system further includes an actuator that positions the rack according to the adjusted torque command.

Abstract: This application discloses a connection establishment method implemented in an end node of the connection. The method includes: obtaining transmission status information of at least two available paths, the transmission status information of each available path of the at least two available paths indicates transmission performance of the each available path, the at least two available paths corresponding to different types of networks; determining a better available path with better transmission performance, the better available path determined based on the transmission status information of the at least two available paths; and establishing the connection using a network corresponding to the better available path.

Abstract: A method and apparatus for implementing a virtual local area network. The method includes determining a global virtual local area network for transmitting a data frame in response to receiving the data frame at a first switch, encapsulating the data frame based at least in part on said determination and transmitting it to at least one second switch over the determined global virtual local area network. The data frame is received at the second switch and an identifier of the global virtual local area network is obtained according to the data frame. Based at least in part on the identifier of the global virtual local area network, it is determined that which local virtual local area network served by the second switch the de-capsulated data frame can be sent to.

Abstract: A link detection technology. In a link detection method, when a target event occurs on paths, in a plurality of paths, whose quantity exceeds a preset quantity, whether the paths on which the target event occurs share a bottleneck link is detected, and congestion control is performed. It can be learned that in the technical solution provided in the embodiments of this application, the target event is a trigger, and shared bottleneck detection is performed after the quantity of the paths on which the target event occurs exceeds the preset quantity. This implements purposeful link detection, reduces system overheads, and brings a fast convergence speed.

Abstract: A Fusarium solani strain and a use thereof in the control of southern blight disease of Dendrobium officinale Kimura et Migo, and the strain JSNL007-2 has been identified as Fusarium solani and has been deposited in China Center for Type Culture Collection on Mar. 10, 2017 with a deposit number of CGMCC NO. 13687. The Fusarium solani JSNL007-2 of the present invention has a significant effect on the disease resistance of Dendrobium officinale Kimura et Migo, especially for improving the ability of Dendrobium officinale Kimura et Migo to resist southern blight disease, and has a certain effect on reducing the use of chemical pesticides, which is an important means to ensure food safety.

Abstract: A round-trip time (RTT) evaluation system includes sending, by a first device, a plurality of packets to a second device on a path, where each of the packets carries a timestamp indicating a sending time of a corresponding packet, determining, by the second device based on a statistical value of one-way delays (OWDs) of the packets, timestamps carried in the packets, sending, by the second device, an acknowledgements (ACKs) to the first device, where the ACKs include the timestamps and ACK time information, and determining, by the first device, measurement values of an RTT of the path based on the timestamps, the ACK time information, and times when the ACKs are received.