Abstract: A calibration method is applied to an autonomous mobile machine provided with a LiDAR to be calibrated. The method includes: acquiring first point cloud data of a calibration room; calculating, based at least on the first point cloud data and coordinate system data of the autonomous mobile machine, a first transformation relationship; acquiring second point cloud data of a marker in the calibration room through the LiDAR to be calibrated; performing registration on the second point cloud data and the first point cloud data to obtain a second transformation relationship; and acquiring, based on the first transformation relationship and the second transformation relationship, a transformation relationship between the coordinate system of the LiDAR to be calibrated and the coordinate system of the autonomous mobile machine as a calibration result.

Abstract: Memory circuitry comprising strings of memory cells comprises laterally-spaced memory blocks individually comprising a vertical stack comprising alternating insulative tiers and conductive tiers directly above a conductor tier. The insulative tiers and the conductive tiers of the laterally-spaced memory blocks extend from a memory-array region into a stair-step region. Strings of memory cells comprise operative channel-material strings that extend through the insulative tiers and the conductive tiers in individual of the laterally-spaced memory blocks in the memory-array region. The operative channel-material strings directly electrically couple with conductor material of the conductor tier. The individual laterally-spaced memory blocks comprise an intermediate region between the operative channel-material strings and the stair-step region. A dummy through-array-via (TAV) extends through the insulative tiers and the conductive tiers in the intermediate region in the individual laterally-spaced memory blocks.

Abstract: A method for determining a center of material handling equipment, which includes a fork assembly, a first wheel assembly, and a second wheel assembly, includes: acquiring first point cloud data corresponding to the fork assembly, second point cloud data corresponding to the first wheel assembly, and third point cloud data corresponding to the second wheel assembly; determining, based on the first point cloud data, a first point cloud plane corresponding to the fork assembly; determining, based on the second point cloud data, a second point cloud plane corresponding to the first wheel assembly; determining, based on the third point cloud data, a third point cloud plane corresponding to the second wheel assembly; and determining, based on the first point cloud plane, the second point cloud plane and the third point cloud plane, the center of the material handling equipment.

Abstract: Various embodiments may relate to a method of forming a fiber. The method may include forming a tube using a thermal drawing process. The method may also include providing one or more mixtures into the tube. The method may further include freezing the one or more mixtures within the tube using a freeze-casting process such that a first plurality of walls formed by MXene sheets and a second plurality of walls formed by nanomaterials, the MXene sheets and the nanomaterials comprised in the one or more mixtures, define a plurality of spaces within the tube, thereby forming the fiber.

Abstract: The present disclosure relates to an automated guided forklift, a method for controlling an automated guided forklift, and a controller. An automated guided forklift is described. The automated guided forklift includes a controller. The controller executes program instructions to perform operations including the following: receiving first optical data; determining depth information of an object based on the first optical data; receiving second optical data, the second optical data including optical information of the object and optical information of a fork of the automated guided forklift; determining a first height difference between the object and the fork based at least in part on the depth information and the second optical data; and moving the fork based at least in part on the first height difference until the first height difference satisfies an insertion condition.

Abstract: A bilateral teleoperation system includes: a primary-end operation platform and a secondary-end operation platform. The primary-end operation platform includes: a primary-end support, primary-end mechanical arms, a mechanical hand control assembly, and a first controller, a root end of the primary-end mechanical arm being arranged on the primary-end support, and a tail end of the primary-end mechanical arm being connected to the mechanical hand control assembly.

Abstract: Disclosed is a preparation method for modified polypropylene, comprising the following steps: dissolving polypropylene in a solvent; and adding a Lewis acid and an initiator into the solution in which the polypropylene is dissolved, and then performing a grafting reaction, to obtain the modified polypropylene; wherein the Lewis acid is selected from at least one of boron trifluoride diethyl etherate, boron trifluoride methyl ether, boron trifluoride acetic acid and boron trifluoride propionic acid; and the initiator is an organic peroxide initiator. Further disclosed are modified polypropylene prepared by the described method, a separator and a preparation method therefor, and a lithium-sulfur battery. Lewis acid monomers are grafted onto molecules of the modified polypropylene provided in the present disclosure, and therefore the modified polypropylene is suitable for being prepared into a separator of a lithium-sulfur battery, and can improve the electrochemical performance of the lithium-sulfur battery.

Abstract: A method for intra prediction includes: determining occupancy information of a first number of neighboring nodes of a coded node; determining occupancy information of a second number of neighboring nodes of the coded node based on a position association between at least one neighboring node of the coded node and a child node of the coded node, where the first number is greater than the second number; determining an occupancy number corresponding to the second number of neighboring nodes based on the occupancy information of the second number of neighboring nodes; and determining an occupancy prediction result of the child node of the coded node based on the occupancy number. A decoder and a method for intra prediction performed by the decoder are also provided.

Abstract: Disclosed are a point cloud encoding and decoding method, and a decoder. The method includes: acquiring geometric information and attribute information of an input point cloud; determining a maximum allowable value of a sampling period when the input point cloud is subjected to level-of-detail (LOD) division; determining a preset value of the sampling period on the basis of the maximum allowable value of the sampling period; processing the input point cloud according to the preset value of the sampling period and the geometric information, so as to obtain at least one refinement layer and at least one detail layer; and encoding the attribute information by using the at least one refinement layer and the at least one detail layer, so as to generate a code stream, and writing the preset value of the sampling period into the code stream.

Abstract: An autonomous mobile machine includes a controller. The controller is configured to execute program instructions to implement following steps: controlling, in response to a mapping task instruction, the autonomous mobile machine to move from a mapping start point to a mapping end point, the mapping end point being located in a loading space of a cargo container transportation vehicle; generating a point cloud map during a process of the movement by using point cloud data scanned by the sensor, the point cloud data including point cloud data obtained by scanning the cargo container transportation vehicle; and obtaining a planning map based on the point cloud map. The planning map is used to plan a path within the cargo container transportation vehicle.

Abstract: A haptic feedback device includes: a first feedback apparatus, including: a fixed platform, a movable platform, a ring disposed on the movable platform, and a power unit disposed on the fixed platform and connected to the movable platform. The power unit is configured to obtain a first control signal generated by a controller and output torsion according to the first control signal. The movable platform is configured to be driven by the torsion to move relative to the fixed platform. The ring is configured to provide feedback force as the movable platform moves, to implement haptic feedback.

Abstract: A method for level partition of a point cloud includes that: a point cloud bitstream is decoded; a maximum permissible value of a first syntax element in the point cloud bitstream is determined as a constant value; the first syntax element is decoded to obtain a value of the first syntax element; a number of levels of detail (LODs) in a process of decoding the attribute information is determined according to the value of the first syntax element; and the attribute information is decoded according to the number of the LODs and the geometry information, to determine a reconstructed point cloud of the point cloud.

Abstract: An intra prediction method and a decoder are provided. The method includes the following. Coordinate information of a current node and a current level corresponding to the current node are determined. A current quantity is determined based on the current level, where the current quantity is positively correlated with the current level. Current neighbour nodes are determined based on the coordinate information of the current node, where the current neighbour nodes are neighbour nodes of the current quantity among neighbour nodes of a parent node of the current node. Intra prediction is performed on the current node based on the coordinate information of the current node and the current neighbour nodes.

Abstract: Provided are compositions and methods for selectively killing cancer cells. The method includes obtaining one or more biological samples from an individual, determining different nucleotide sequences in cancer and non-cancer cells from the biological sample using an algorithm to identify a candidate target sequence that is present in the cancer cells and not present in the non-cancer cells. Based on the different nucleotide sequences in the cancer cells relative to the non-cancer cells a CRISPR Cas3 system that includes a guide RNA targeted to an identified segment of the chromosome that is linked to the target sequence is degraded.

Abstract: Methods, systems, and devices for efficient fabrication of memory structures are described. A multi-deck memory device may be fabricated using a sequence of fabrication steps that include depositing a first metal layer, depositing a cell layer on the first metal layer to form memory cells of the first memory deck, and depositing a second metal layer on the cell layer. The second metal layer may be deposited using a single deposition process rather than using multiple deposition processes. A second memory deck may be formed on the second metal layer such that stacked memory cells from the first and second deck share the use of the second metal layer. Using a single deposition process for the second metal layer may decrease the quantity of fabrication steps used to fabricate the multi-deck memory array and reduce or eliminate the exposure of the cell material to metal etchants.

Abstract: Some embodiments include an arrangement having a memory tier with memory cells on opposing sides of a coupling region. First sense/access lines are under the memory cells, and are electrically connected with the memory cells. A conductive interconnect is within the coupling region. A second sense/access line extends across the memory cells, and across the conductive interconnect. The second sense/access line has a first region having a second conductive material over a first conductive material, and has a second region having only the second conductive material. The first region is over the memory cells, and is electrically connected with the memory cells. The second region is over the conductive interconnect and is electrically coupled with the conductive interconnect. An additional tier is under the memory tier, and includes CMOS circuitry coupled with the conductive interconnect. Some embodiments include methods of forming multitier arrangements.

Abstract: This application discloses a motion platform, a haptic feedback device, and a human-computer interactive system. The motion platform includes a first platform, a second platform and a linkage assembly, the first platform and the second platform being connected by the linkage assembly, the second platform being configured to move relative to the first platform. The first platform comprises a first power take-off and a second power take-off, the first power take-off comprising a first output shaft and the second power take-off comprising a second output shaft. The linkage assembly comprises a first parallelogram linkage mechanism and a second parallelogram linkage mechanism connected to each other, and a two-bar linkage mechanism. The two-bar linkage mechanism and the first parallelogram linkage mechanism have the same plane of motion, and the second output shaft being configured to drive motion of the two-bar linkage mechanism.

Abstract: Provided is a method for predicting attribute information, a coder, a decoder, and a storage medium. The coder determines a current Morton code corresponding to a point to be predicted in a point cloud to be coded, determines a target Morton code corresponding to the point to be predicted based on the current Morton code and according to a preset neighbor information table, judges whether a neighbor point of the point to be predicted exists in the point cloud to be coded according to the target Morton code, and performs prediction to obtain a predicted attribute value of the point to be predicted according to attribute reconstruction information of the neighbor point in response to that the neighbor point exists in the point cloud to be coded.

Abstract: Methods, systems, and devices for efficient fabrication of memory structures are described. A multi-deck memory device may be fabricated using a sequence of fabrication steps that include depositing a first metal layer, depositing a cell layer on the first metal layer to form memory cells of the first memory deck, and depositing a second metal layer on the cell layer. The second metal layer may be deposited using a single deposition process rather than using multiple deposition processes. A second memory deck may be formed on the second metal layer such that stacked memory cells from the first and second deck share the use of the second metal layer. Using a single deposition process for the second metal layer may decrease the quantity of fabrication steps used to fabricate the multi-deck memory array and reduce or eliminate the exposure of the cell material to metal etchants.

Abstract: Disclosed are a point cloud encoding and decoding method, and a decoder. The method includes: acquiring geometric information and attribute information of an input point cloud; determining a maximum allowable value of a sampling period when the input point cloud is subjected to level-of-detail (LOD) division; determining a preset value of the sampling period on the basis of the maximum allowable value of the sampling period; processing the input point cloud according to the preset value of the sampling period and the geometric information, so as to obtain at least one refinement layer and at least one detail layer; and encoding the attribute information by using the at least one refinement layer and the at least one detail layer, so as to generate a code stream, and writing the preset value of the sampling period into the code stream.