Abstract: A method for generating a virtual venue includes: constructing a three-dimensional virtual venue including a three-dimensional virtual sandbox and a virtual screening room, the three-dimensional virtual sandbox being a three-dimensional virtual environment in which a virtual object is located, and the virtual screening room for livestreaming a player controlling the virtual object to participate a current competition in the three-dimensional virtual sandbox; dynamically updating a location of the virtual object in the three-dimensional virtual sandbox based on an update to the current competition; generating a first livestreaming video of the virtual object participating the current competition in the three-dimensional virtual sandbox by capturing a three-dimensional field-of-view video of the virtual object in the three-dimensional virtual venue by using a first virtual camera; and playing the first livestreaming video in the virtual screening room and pushing the first livestreaming video to a terminal asso

Abstract: A roller is configured to roll an electrode plate, and the roller includes a rolling portion and a temperature regulating assembly. A rolling surface for rolling the electrode plate is formed on an outer surface of the rolling portion, and a mounting hole is provided inside the rolling portion along an axial direction of the rolling portion. The temperature regulating assembly is provided in the mounting hole and configured to exchange heat with the rolling portion. A rolling apparatus has a first roller and a second roller. The first roller and the second roller are jointly configured to roll an electrode plate. When the rolling portion is rolling an electrode plate, the temperature regulating assembly regulates a temperature of the rolling portion along the axial direction, so as to adjust the radial deformation of the rolling portion depending on the rules of thermal expansion and contraction.

Abstract: A commodity settlement processing method is provided. The method includes obtaining N first images by shooting a settlement area from N shooting angles, the N is a positive integer that is greater than 1. Commodities in each of the N first images are recognized and a preliminary recognition result corresponding to each first image is obtained. Once a final recognition result is determined based on N preliminary recognition results that have been obtained, the commodities in the settlement area are settled according to the final recognition result.

Abstract: Examples described herein relate to a network interface device. In some examples, the network interface device includes a host interface; a direct memory access (DMA) circuitry; a network interface; and circuitry. The circuitry can be configured to: apply, for a tunnel packet, a single match-action rule that comprises a value of the encapsulation header of the tunnel packet and a value of the encapsulated header, wherein the single match-action rule is based on two or more match-action rules.

Abstract: A step, a step device and a vehicle are provided. The step includes a plurality of step segments, at least one connection step segment and a fastener, adjacent step segments include a first step segment and a second step segment, a first end of the connection step segment is slidably and detachably connected to the first step segment, a second end of the connection step segment is slidably and detachably connected to the second step segment, and the fastener is configured to fasten the connection step segment and the first step segment and to fasten the connection step segment and the second step segment.

Abstract: A control node divides a plurality of edge nodes included in an edge node cluster into N edge node sets, where each edge node set includes at least two edge nodes. The control node selects M second edge nodes from a first edge node set, where the first edge node set is one of the N edge node sets. The control node sends a control rule to the M second edge nodes, so that the second edge node performs fault detection on a first edge node according to the control rule. Therefore, when the control node cannot perform fault detection on the first edge node, the second edge node can perform fault detection on the first edge node.

Abstract: A wearable haptic modulation device for real-time simulation of texture properties of a material surface in mixed reality environments is provided. Particularly, it includes a U-shaped pneumatic actuator surrounds a user's fingertip, a finger-housing support creating a space for fingertip containment, a resonant actuator on the finger-housing support generating vibrotactile feedback to enhance perceived roughness on touched physical surfaces, and a pneumatic control system generating pneumatic actuation to reduce the perceived roughness on touched physical surface. Notably, the U-shaped pneumatic actuator allows direct contact of the user's fingerpad with the touched physical surface.

Abstract: Methods and systems are disclosed for pose comparison, interactive physical gaming, and remote fitness training on a user computing device. The methods and systems are configured to first receive a reference feature generated from a frame of a reference video, the reference feature computed from a reference posture of a reference person in the frame of the reference video. Next, receive a frame of a user video, the frame of the user video comprising a user. Next, extract a user posture from the frame of the user video, by performing a machine learning-based computer vision algorithm that detects one or more body key points of the user in an image plane of the user video. Finally, generate a user feature from the user posture; and determine an output score based on a distance between the reference feature and the user feature.

Abstract: The present disclosure provides a computer network system. The computer network system includes: a high-performance computing network, where the high-performance computing network includes at least four computers, a topology relation of the large regions in the computational domain corresponds to a topology relation of the high-performance computing network, and the topology relation of the high-performance computing network is that the plurality of computers in the high-performance computing network form a ring topology or a daisy-chain topology by wired connection; where the management network includes all the computers in the high-performance computing network and computers having result post-processing for storage and computation, and all the computers in the management network are connected by switches or routers to form a star network topology.

Abstract: A biomimetic turtle includes a trunk, a head movably connected with a front end of the trunk in the front-rear direction, two front limbs disposed on a front section of the trunk and each rotatable relative to the trunk to sway in an up-down direction, and a driving module to drive the head and the front limbs. Each front limb has a curve-shaped rigid portion with a recess, and a deformable flipper portion engaged in the recess and extending rearwardly. With the deformable flipper portion deformed and bent during swaying of the front limbs, a forward propelling force is generated to propel the biomimetic turtle forwardly. The head is operably movable to vary the center of gravity of 10 the biomimetic turtle 100 in the water, and thus the front portion of the biomimetic turtle is inclined upwardly or downwardly to facilitate ascending or descending of the biomimetic turtle.

Abstract: A time-resolved fluorescence immunochromatography kit for the simultaneous detection of a mixed pollutant of aflatoxin and carbaryl, a preparation method therefor, and an application thereof. The kit comprises a time-resolved fluorescence immunochromatography test strip and a sample reaction vial containing a europium-labeled anti-aflatoxin monoclonal antibody and a europium-labeled anti-carbaryl monoclonal antibody lyophilized product, detection lines of the time-resolved fluorescence immunochromatography test strip being coated with an aflatoxin-bovine serum albumin conjugate and a carbaryl-ovalbumin conjugate respectively, and the anti-carbaryl monoclonal antibody is produced by secretion of a hybridoma cell line Jnw1D2 with a preservation number of CCTCC NO. C201654. The kit can be used for the simultaneous detection of aflatoxin and carbaryl content in a sample, and features simple and quick operations and a high sensitivity.

Abstract: The application provides a method, apparatus and electronic device for monitoring tower clearance. The method for monitoring tower clearance includes: obtaining a distance to an obstacle measured by a laser ranging device; calculating a measured clearance value of each laser based on a first distance of the laser; compensating the measured clearance value of each laser by a preset compensation formula to obtain a compensated clearance value of the laser; comparing a minimum compensated clearance value among N lasers with a preset clearance threshold; and performing safety protection for the wind turbine based on a comparison result.

Abstract: The disclosure includes near-eye optical elements configured to suppress stray infrared light. Infrared light sources illuminate an eyebox area. A combiner layer may receive reflected infrared light and direct the reflected infrared light to a camera.

Abstract: Disclosed are a vehicle step device and a vehicle comprising the vehicle step device. In some embodiments, the vehicle step device includes a mounting frame; a fixed step mounted on the mounting frame; a retractable mechanism mounted to one of the mounting frame and the fixed step; and a retractable step mounted on the retractable mechanism so that the retractable mechanism is configured to drive the retractable step to move between an extended position and a retracted position. In the extended position, at least a part of the retractable step extends outward beyond the fixed step from underneath the fixed step so that the retractable step and the fixed step form two steps, and in the retracted position, the retractable step retracts to a position underneath the fixed step.

Abstract: An integrated railway movement dispatching and train operation control method, comprising: sensing in-transit information of a signal system; constructing an integrated railway movement dispatching and train operation control minimum system; optimizing a time-saving train driving strategy online; optimizing a multi-train driving strategy in a virtual formation mode; and generating an integrated railway movement dispatching and train operation control adjustment solution.

Abstract: Embodiments of a method in an access node of a wireless communication network pre-emptively reduces intercell interference, ICI, in neighboring cells. The access node is configured to transmit downlink traffic to a plurality of user equipments, UEs, in a coverage area of the access node. At least one unscheduled physical resource block, PRB, is detected. Downlink traffic across is diluted across the at least one unscheduled PRB. Finally, transmission power of scheduled PRBs is reduced.

Abstract: A system includes a coordinator node, a plurality of index nodes, and a plurality of worker nodes, where the coordinator node generates a first query task based on a query request, and sends the first query task to the index node; a first index node in the plurality of index nodes determines, based on the received first query task, a target shard that is in a first data range managed by the first index node and that includes data queried by using the query request, and sends information about the target shard to the coordinator node; and the coordinator node receives information about a plurality of target shards that is sent by the plurality of index nodes, generates second query tasks for the plurality of target shards, and schedules the plurality of worker nodes to execute a query request for the plurality of target shards.

Abstract: A sulfur-containing platinum-carbon catalyst, a preparation method thereof, and an application thereof are provided. The sulfur-containing platinum-carbon catalyst contains sulfur-containing conductive carbon black and a platinum metal loaded thereon. The total sulfur content in the sulfur-containing conductive carbon black is greater than or equal to the surface sulfur content, and the weight fraction of platinum is 20-70% by weight based on the total weight of the catalyst. The sulfur-containing platinum-carbon catalyst of the invention has a lower overpotential and a higher weight specific activity.

Abstract: A method for purifying biological dust suppressant by two-stage ultrafiltration is provided, which utilizes the differences of physical characteristics such as solubility and molecular morphology of each substance in fermentation broth to separate and purify the target product by two-stage ultrafiltration. Firstly, the fermentation broth is centrifugally pretreated to separate insoluble substances such as microbial cells; after centrifugation, the supernatant passes through a primary ultrafiltration membrane, and the polysaccharide, lactic acid and aggregated biological dust suppressant molecules with molecular weights more than 20 kilodaltons are cut off; organic solvents such as methanol and ethyl acetate are added to the retentate for dilution, further filtering is carried out with ultrafiltration membrane with a cutoff molecular weight more than 10 kilodaltons to obtain liquid product, and finally preparing solid purified product is conducted through rotary evaporation and constant temperature drying.

Abstract: A sulfur-modified carbon material contains conductive carbon black and sulfur elements distributed therein. The total sulfur content in the sulfur-modified carbon material is equal to or more than 1.2 times, preferably equal to or more than 1.5 times, the surface sulfur content. A process for preparing the sulfur-modified carbon material includes an impregnation step to impregnate the conductive carbon black with a solution containing sulfur at 10-80° C. for 1-5 h, and a drying step.