Abstract: The memory device includes a memory block with an array of memory cells. The memory device also includes control circuitry that is in communication with the memory cells. The control circuitry is configured to program a group of the memory cells in a programming operation that does not include verify to obtain a natural threshold voltage (nVt) distribution, calculate an nVt width of the nVt distribution, compare the nVt width to a threshold, and identify the memory block as being vulnerable to cross-temperature read errors in response to the nVt width exceeding the threshold.

Abstract: A system includes a high-bandwidth inter-chip network (ICN) that allows communication between parallel processing units (PPUs) in the system. For example, the ICN allows a PPU to communicate with other PPUs on the same compute node or server and also with PPUs on other compute nodes or servers. In embodiments, communication may be at the command level (e.g., at the direct memory access level) and at the instruction level (e.g., the finer-grained load/store instruction level). The ICN allows PPUs in the system to communicate without using a PCIe bus, thereby avoiding its bandwidth limitations and relative lack of speed. The respective routing tables comprise information of multiple paths to any given other PPU.

Abstract: An irregular seismic data collection method is based on forward modeling. The method includes: fully collecting geological information of a work area to build a geological model, determining arrangement parameters of receiver points and shot points for regular high-density collection and irregular sparse collection, performing irregular optimization design on positions of the shot points based on forward modeling, performing irregular optimization design on positions of the receiver points based on forward modeling, and outputting a preferred irregular sparse observation system.

Abstract: Embodiments of the present disclosure relate to a permission setting method and apparatus, a device, and a medium. The method includes: displaying a permission customization control, in response to a trigger operation on a permission setting object of task information, the permission setting object including a first information object and/or a second information object, the second information object being subordinate to the first information object; displaying a permission editing interface, in response to a trigger operation on the permission customization control, and receiving customization permission information via the permission editing interface; and displaying the customization permission information corresponding to the permission setting object. Therefore, a hierarchy structure based on the task information satisfies a setting need for content-based permission customization, and improves a permission management efficiency.

Abstract: A method and system for pretreating waste plastics and a method and system for producing an automotive fuel from waste plastics are provided. The method for pretreating waste plastics includes the steps of: 1) contacting a waste plastic with a pretreating agent and a solvent oil for impurity removal; and 2) subjecting the effluent from step 1) to solid-liquid separation to obtain an insoluble material and an impurity-removed plastic-containing solution. The impurity-removed plastic-containing solution obtained by the method and system for pretreating waste plastics has very low metal content, chlorine content and silicon content.

Abstract: An electronic device includes: a housing, where the housing is provided with a first surface and a second surface that are back away from each other; a flexible display, where the flexible display is disposed on the housing, and the flexible display includes a first portion; and a driving mechanism, where the driving mechanism is disposed in the housing, the driving mechanism is connected to the flexible display, and the driving mechanism drives the flexible display to slide between a first position and a second position. In a case that the flexible display is located at the first position, the first portion is located on a side on which the first surface is located; and in a case that the flexible display is located at the second position, the flexible display is bent and the first portion slides to a side on which the second surface is located.

Abstract: An autonomous vehicle system removes ephemeral points from lidar samples. The system receives a plurality of light detection and ranging (lidar) samples captured by a lidar sensor. Along with the lidar samples, the system receives an aligned pose and an unwinding transform for each of the lidar samples. The system determines one or more occupied voxel cells in a three-dimensional (3D) space using the lidar samples, their aligned poses, and their unwinding transforms. The system identifies occupied voxel cells representative of noise associated with motion of an object relative to the lidar sensor. The system filters the occupied voxel cells by removing the cells representative of noise. The system inputs the filtered occupied voxel cells in a 3D map comprising voxel cells, e.g., during the map generation and/or a map update.

Abstract: The present invention discloses a hysteresis signal detection circuit, comprising: a first MOS transistor, a second MOS transistor, an inverter INV1, an inverter INV2 and an inverter INV3. A gate of the first MOS transistor is connected with an input end, and a drain of the first MOS transistor is connected with an output end through the inverter INV1, the inverter INV2 and the inverter INV3 successively; a source of the first MOS transistor is connected with a drain of the second MOS transistor, and a gate of the second MOS transistor is connected between the inverter INV1 and the inverter INV2; and a resistor R1 is connected between a source and the drain of the second MOS transistor. In the present invention, not only the hysteresis voltage can be adjusted through current and resistance values, which is flexible, but also the hysteresis voltage may not change with power voltage.

Abstract: The present invention discloses a memristor array, comprising metal wires and memristors; the metal wires are arranged laterally and vertically; a memristor is arranged at the intersection of every two metal wires; the connection/disconnection of the metal wires is judged according to the resistance values of the memristors; and an adder is constituted according to the resistance value states of the memristors. The present invention provides a memristor-CMOS hybrid multiplication core circuit, in which one input of multiplication can be stored in a memristor network, one part of operation is completed in a memory network, the other part of operation is completed through a CMOS circuit, thereby reducing frequent data calls by half, and the power consumption of the CMOS circuit is further reduced by reducing competitive adventure in the operation process, thereby greatly reducing the overall energy consumption.

Abstract: A high-definition map system receives sensor data from vehicles travelling along routes and combines the data to generate a high definition map for use in driving vehicles, for example, for guiding autonomous vehicles. A pose graph is built from the collected data, each pose representing location and orientation of a vehicle. The pose graph is optimized to minimize constraints between poses. Points associated with surface are assigned a confidence measure determined using a measure of hardness/softness of the surface. A machine-learning-based result filter detects bad alignment results and prevents them from being entered in the subsequent global pose optimization. The alignment framework is parallelizable for execution using a parallel/distributed architecture. Alignment hot spots are detected for further verification and improvement.

Abstract: Disclosed are an implantable flexible neural microelectrode comb, and a preparation method and implantation method therefor. The flexible neural microelectrode comb is mainly composed of a flexible substrate layer (1), a flexible insulation layer (2), and a metal connection wire layer (3) arranged between the flexible substrate layer (1) and the flexible insulation layer (2); the flexible neural microelectrode comb comprises a filament structure (4), a mesh structure (5), a plane structure (6) and a bonding pad area (7) connected in sequence; electrode sites (8) are arranged on the filament structure (4); bonding pads are arranged on the bonding pad area (7); the metal connection wire layer (3) is composed of metal connection wires connecting the electrode sites (8) and the bonding pads; and the flexible insulation layer (2) is not arranged on the surfaces of the electrode sites (8) and the bonding pads.

Abstract: Techniques of data authentication in a distributed computing system are disclosed herein. One example technique includes receiving a request for performing an operation along with a data package that includes a security token, a first digital signature of the security token generated using an ephemeral private key, and an ephemeral public key with a second digital signature generated using a master private key stored at a secure location. The example technique can also include initially validating the second digital signature using a public key corresponding to the master private key, and upon validating the second digital signature, validating the first digital signature of the security token using the ephemeral public key included in the data package. Upon validating that the first digital signature of the security token, the request can be authenticated, and the requested operation can be performed.

Abstract: A high-definition map system receives sensor data from vehicles travelling along routes and combines the data to generate a high definition map for use in driving vehicles, for example, for guiding autonomous vehicles. A pose graph is built from the collected data, each pose representing location and orientation of a vehicle. The pose graph is optimized to minimize constraints between poses. Points associated with surface are assigned a confidence measure determined using a measure of hardness/softness of the surface. A machine-learning-based result filter detects bad alignment results and prevents them from being entered in the subsequent global pose optimization. The alignment framework is parallelizable for execution using a parallel/distributed architecture. Alignment hot spots are detected for further verification and improvement. The system supports incremental updates, thereby allowing refinements of subgraphs for incrementally improving the high-definition map for keeping it up to date.

Abstract: Techniques of data authentication in a distributed computing system are disclosed herein. One example technique includes receiving a request for performing an operation along with a data package that includes a security token, a first digital signature of the security token generated using an ephemeral private key, and an ephemeral public key with a second digital signature generated using a master private key stored at a secure location. The example technique can also include initially validating the second digital signature using a public key corresponding to the master private key, and upon validating the second digital signature, validating the first digital signature of the security token using the ephemeral public key included in the data package. Upon validating that the first digital signature of the security token, the request can be authenticated, and the requested operation can be performed.

Abstract: An autonomous vehicle system removes ephemeral points from lidar samples. The system receives a plurality of light detection and ranging (lidar) samples captured by a lidar sensor. Along with the lidar samples, the system receives an aligned pose and an unwinding transform for each of the lidar samples. The system determines one or more occupied voxel cells in a three-dimensional (3D) space using the lidar samples, their aligned poses, and their unwinding transforms. The system identifies occupied voxel cells representative of noise associated with motion of an object relative to the lidar sensor. The system filters the occupied voxel cells by removing the cells representative of noise. The system inputs the filtered occupied voxel cells in a 3D map comprising voxel cells, e.g., during the map generation and/or a map update.

Abstract: Disclosed are an implantable flexible neural microelectrode comb, and a preparation method and implantation method therefor. The flexible neural microelectrode comb is mainly composed of a flexible substrate layer (1), a flexible insulation layer (2), and a metal connection wire layer (3) arranged between the flexible substrate layer (1) and the flexible insulation layer (2); the flexible neural microelectrode comb comprises a filament structure (4), a mesh structure (5), a plane structure (6) and a bonding pad area (7) connected in sequence; electrode sites (8) are arranged on the filament structure (4); bonding pads are arranged on the bonding pad area (7); the metal connection wire layer (3) is composed of metal connection wires connecting the electrode sites (8) and the bonding pads; and the flexible insulation layer (2) is not arranged on the surfaces of the electrode sites (8) and the bonding pads.

Abstract: An unoriented silicon steel having high magnetic conductivity and low iron loss at a working magnetic density of 1.0-1.5 T and method for manufacturing same. By proper deoxidation control in a RH refining and high-temperature treatment for a short time in a normalizing step, the method can reduce the amount of inclusions in the silicon steel and improve grain shape, so as to improve the magnetic conductivity and iron loss of the unoriented silicon steel at a magnetic density of 1.0-1.5 T.

Abstract: The present invention provides a non-oriented silicon steel with excellent magnetic properties and a manufacturing process therefor. During the manufacturing process of the present invention, the temperature T of the molten steel of steel tapped from a converter during steelmaking and the carbon content [C] and the free oxygen content [O] comply with the following formula: 7.27×103?[O][C]e(?5000/T)?2.99×104, and the final annealing step uses tension annealing at a low temperature for a short time. A non-oriented silicon steel with a low iron loss, and excellent anisotropy of iron loss can be obtained by means of the manufacturing process of the present invention.

Abstract: Disclosed are a non-oriented electrical steel plate with low iron loss and high magnetic conductivity and a manufacturing process therefor. The casting blank of the steel plate comprises the following components: Si: 0.1-2.0 wt %, Al: 0.1-1.0 wt %, Mn: 0.10-1.0 wt %, C: ?0.005 wt %, P: ?0.2 wt %, S: ?0.005 wt %, N: ?0.005 wt %, the balance being Fe and unavoidable impurities. The magnetic conductivity of the steel plate meets the following relationship formula: ?10+?13+?15?13982?586.5P15/50; ?10+?13+?15?10000, wherein P15/50 is the iron loss at a magnetic induction intensity of 1.5 T at 50 Hz; ?10, ?13, and ?15 is are relative magnetic conductivities at induction intensities of 1.0 T, 1.3 T, and 1.5 T at 50 Hz, respectively. The steel plate can be used for manufacturing highly effective and ultra-highly effective electric motors.