Abstract: A control channel allocation method for a flying device comprises: allocating a task to a flying device, wherein the task comprises flight information for the flying device; determining a flight time of the flying device flying from a departure station to an arrival station according to the flight information; searching for one or more control channels at the departure station and the arrival station that are idle during the flight time based on one or more control channel occupation tables as one or more target control channels, wherein the one or more control channel occupation tables store idle states of a plurality of control channels at the departure station and the arrival station during a plurality of periods of time; and allocating the one or more target control channels for controlling the flying device to fly from the departure station to the arrival station.

Abstract: A method and a system for reducing column noise of an image sensor are provided. The method includes: reading dark pixel data in each image frame and reading initial effective pixel data in each image frame, where dark pixels and initial effective pixels are both arranged in N columns; sequentially calculating the dark pixel data to obtain an average value of each column of dark pixels and an entire average value of the dark pixels in each image frame; obtaining a corrected value of each column according to the average value of each column of dark pixels and the entire average value of the dark pixels; and calculating the corrected value of each column and the corresponding initial effective pixel data in each image frame to obtain target effective pixel data. In the method, the dark pixel data is pre-processed.

Abstract: A method and an apparatus for handling image forming abnormality, and an image forming apparatus are provided. The method is applied to the image forming apparatus and includes acquiring a print job from a control terminal and analyzing the print job to obtain an analysis result. When the analysis result is a failed analysis, whether a control program installed on the control terminal is abnormal is determined accordingly. The control program is a program which enables the control terminal to exchange the print job with the image forming apparatus. If the control program installed on the control terminal is abnormal, an abnormal-driving information page is generated and printed to output. By printing to output the abnormal information page, the user can be effectively and clearly informed of the cause of the printer abnormality, which improves the efficiency and user experience of abnormality resolution.

Abstract: Disclosed are a nitrogen-doped hierarchical-porous carbon-loaded nano-Pd catalyst and a preparation method thereof. The preparation method includes preparing nitrogen-doped hierarchical-porous carbon, mixing the nitrogen-doped hierarchical-porous carbon with water, adjusting a pH value of the mixed solution to be alkaline, mixing the mixed solution with a Pd metal precursor aqueous solution, and then adding a reducing agent to obtain the nitrogen-doped hierarchical-porous carbon-loaded nano-Pd catalyst after reduction. The prepared nitrogen-doped hierarchical-porous carbon-loaded nano-Pd catalyst includes a nitrogen-doped porous carbon material carrier with hierarchical pores and Pd metal nanoparticles loaded in the hierarchical pores of the carrier. The Pd metal nanoparticles have a size of 2˜14 nm and a regular polyhedron shape.

Abstract: An electromagnetic valve includes a valve supporting member and a valve seat. The valve supporting member is provided with a first installation portion; the valve seat is provided with a second installation portion; the valve supporting member and the valve seat are connected by fitting the first installation portion and the second installation portion; the valve seat is further provided with a first recess; the electromagnetic valve is sealed with an external valve body by a sealing member arranged in the first recess; and the joint of the first installation portion and the second installation portion is located below the first recess, such that the outer diameter of the valve supporting member is limited by the outer diameter of the valve seat, and miniaturization of the electromagnetic valve is thus facilitated.

Abstract: Certain embodiments described herein are relate to a method for dynamically rekeying a security association. The method includes establishing, by a destination tunnel endpoint (TEP), an in-bound security association with a source TEP, with a first security parameter index (SPI) value, for encrypting data packets communicated between the source TEP and the destination TEP. The method further includes rekeying, by the destination TEP, the in-bound security association, the rekeying including generating a second SPI value for replacing the first SPI value based on a trigger event relating to at least one of a real-time security score of the in-bound security association, a number of security associations assigned to a compute resource that the in-bound security resource is assigned to, an amount of load managed by the compute resource that the in-bound security resource is assigned to, and an indication received from an administrator.

Abstract: An IC structure includes first and second gates, first and second source/drain regions, and an isolation region. The first and second gates each have a first portion extending along a first direction and a second portion extending along a second direction. The first source/drain regions are respectively on opposite sides of the first portion of the first gate. The second source/drain regions are respectively on opposite sides of the first portion of the second gate. The isolation region has a lower portion between a first one of the first source/drain regions and a first one of the second source/drain regions, and an upper portion partially overlapping with the second portion of first gate and the second portion of the second gate. A width of the lower portion is a less than a width of the upper portion.

Abstract: The disclosure provides a method for preparing a hollow fiber membrane by melt spinning-stretching and selective swelling, including: preparing a nascent hollow fiber by melt spinning in an inert gas protective atmosphere by using an amphiphilic block copolymer as a film forming material, and stretching the nascent hollow fiber in the cooling process, a stretch rate being controlled at 200-540 mm/min, and a stretch ratio being controlled at 150-600%; immersing the obtained hollow fiber in a swelling solvent, and treating the hollow fiber in a water bath at 65° C. for 1 h; and then transferring the hollow fiber into a long-chain alkane solvent, treating the hollow fiber at the same temperature for 1-12 h, and after the completion of the treatment, immediately taking out the hollow fiber and drying the hollow fiber to obtain the hollow fiber membrane with a bicontinuous porous structure.

Abstract: The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf).

Abstract: Edge device task management by receiving an indicator corresponding to a first container running a task on a first edge device of a cluster of edge devices, wherein the indicator indicates an error status of the first container, and wherein task data of the task is stored in a first local storage of the first edge device, selecting a second edge device from the cluster of edge devices, wherein a second container on the second edge device is to run the task, instructing the first and second edge devices to transfer the task data from the first local storage of the first edge device to a second local storage of the second edge device, and in response to receiving a notification that indicates the task data has been transferred from the first local storage to the second local storage, sending the task to the second container.

Abstract: A server determines at least two component groups in a vehicle, where each component group includes one upgrade control component configured to control a component in the component group to perform an over the air (OTA) upgrade; the server generates a first upgrade package for a first component group in the at least two component groups, where an upgrade control component in the first component group is a first upgrade control component; and the server sends the first upgrade package to the first upgrade control component, where the first upgrade package is used to upgrade a component in the first component group.

Abstract: A method of stratifying precancerous tissues by their risk of becoming cancerous by using a machine learning algorithm in combination with hyperspectral imaging. Also a method of constructing the machine learning algorithm for stratifying precancerous tissues by risk.

Abstract: Disclosed is a composition for cleansing and/or removing makeups from keratin materials, comprising in an aqueous phase: a) at least one amino acid surfactant; b) at least one sulfosuccinate surfactant; and c) at least one divalent and/or trivalent metal salt. Also disclosed is a process for cleansing and/or removing makeups from keratin materials, in particular the skin, comprising the application to the keratin materials, in particular the skin, of the composition according to the present invention, and rinsing off said composition after an optional period of time.

Abstract: The disclosure relates to technology for acceleration of GPUs in cloud. Instructions for a computational task are accessed. An allocation of data and instructions is calculated based on the data, the instructions, and dynamic GPU resources. The data and the instructions are provided to the GPUs in accordance with the allocation, which includes scheduling a set of instructions for parallel computation of an operation of the computational task on multiple sub-matrices of a data matrix. Separate portions of information are stored into corresponding different regions of non-transitory memory of a processor core to provide concurrent access to the multiple sub-matrices to the processor core. Each sub-matrix corresponds to a portion of the data matrix for which an operation of the computational task is to be performed. Each sub-matrix contains an element in the data matrix in common with another sub-matrix of the data matrix.

Abstract: Example methods and systems for a programmable virtual network interface controller (VNIC) to perform packet processing are described. In one example, the programmable VNIC may modify a packet processing pipeline based on the instruction. The modification may include injecting a second packet processing stage among the multiple first packet processing stages of the packet processing pipeline. In response to detecting an ingress packet that requires processing by the programmable VNIC, the ingress packet may be steered towards the modified packet processing pipeline. The ingress packet may then be processed using the modified packet processing pipeline by performing the second packet processing stage (a) to bypass at least one of the multiple first processing stages, or (b) in addition to the multiple first processing stages.

Abstract: This application discloses a synchronization signal block transmission method and apparatus, a device, and a storage medium. The method includes: sending a first synchronization signal block in a first polarization direction on a first transmission occasion; and sending a second synchronization signal block in a second polarization direction after a first time interval; where the first polarization direction is different from the second polarization direction, and the first synchronization signal block and the second synchronization signal block contain the same information.

Abstract: From a set of point data, a set of scattered rays is constructed. From the set of scattered rays, a set of ray slopes is computed. The set of ray slopes is mapped to a corresponding set of trigonometric functions. Using an optimization method, a parameter of the set of trigonometric functions is selected. Using an inverse of the set trigonometric functions, a vehicle mass corresponding to the set of point data is computed. Based on the vehicle mass, a threshold braking distance of a collision avoidance system of the vehicle is adjusted, the threshold braking distance comprising a distance from an object predicted to collide with the vehicle. By braking the vehicle at least the threshold braking distance from the object, a predicted collision between the vehicle and the object is avoided.

Abstract: Some embodiments provide a method for forwarding data messages at multiple edge nodes of a logical network that process data messages between a logical network and an external network. At a particular one of the edge nodes, the method receives a data message sent from a source machine in the logical network. The method performs network address translation to translate a source network address of the data message corresponding to the source machine into an anycast network address that is shared among the edge nodes. The method sends the data message with the anycast network address as a source network address to the external network. Each edge node receives data messages from source machines in the logical network and translates the source addresses of the data messages into the same anycast public network address prior to sending the data messages to the external network.

Abstract: An embodiment includes parsing geographical data into a path graph having a plurality of nodes and edges, and identifying first and second subsets of the nodes as source nodes and destination nodes, respectively. The embodiment generates path data for a candidate delivery route from a source node to a destination node and along an edge between the source and destination nodes. The embodiment processes the path data using first and second evaluation techniques based on respective metrics. The embodiment compares evaluation values from the evaluation techniques to evaluation values associated with another candidate delivery route, and selects the candidate delivery route as a finalized delivery route based on the comparison results. The embodiment then generates a route plan that includes the finalized delivery route.

Abstract: For a network including multiple computers acting as tunnel endpoints in a network, some embodiments provide a method for processing data messages in parallel using multiple processors (e.g., cores) of each computer. Each computer in some embodiments has a set of interfaces configured as tunnel endpoints connecting to multiple tunnels. In some embodiments, the multiple processors encrypt data messages according to a set of encryption parameters or multiple sets of encryption parameters that specify an encryption policy for data messages requiring encryption, an encryption algorithm, an encryption key, a destination network address, and an encryption-parameter-set identifier.