Abstract: Disclosed herein are systems and methods directed to sending, by a first wireless communication device to a second wireless communication device, a stream classification service (SCS) request frame including information of traffic to be communicated between the first wireless communication device and a third wireless communication device. The first wireless communication device, the second wireless communication device and the third wireless communication device share a wireless communication channel. The method can include communicating, by the first wireless communication device responsive to receiving an indication that a transmission opportunity (TXOP) of the second wireless communication device is shared with the first wireless communication device, with the second wireless communication device on a first link during a first portion of the TXOP, and with the third wireless communication device on a second link during a second portion of the TXOP.

Abstract: A first device may include a processor, a first wireless network interface, and a second wireless network interface. The processor may be configured to, while associating with the access point over a first wireless network on a first channel via the first wireless network interface, establish a second wireless network via the second wireless network interface. A group of client devices including one or more client devices can join the second wireless network on the first channel via the second wireless network interface. The processor may be configured to receive, via the first wireless network interface, first information from the access point. The processor may be configured to send, via the second wireless network interface, the first information to the group of client devices.

Abstract: An autonomous driving method includes receiving a braking instruction from an autonomous driving system; determining a prompt mode based on the braking instruction; and controlling a sound prompt module or a light prompt module to prompt according to the prompt mode. One example includes a prompt scheme, by using a braking instruction from an autonomous driving system and performing a sound and light prompt based on the braking instruction, such that a safety staff can learn the braking intention of a vehicle via the sound or light prompt before the vehicle performs braking.

Abstract: A multi-timescale voltage regulation method based on source-grid-load-storage multi-terminal collaboration of a power distribution network is disclosed, which comprises: establishing, based on a Petri network, a multi-mode switching control model based on voltage security event trigger to realize effective control of a global voltage; establishing multi-objective optimization taking into account a source-storage-load regulation cost and a network transmission loss to realize collaborative and dynamic control of controllable resources of a source terminal, a load terminal and a storage terminal in each operating mode; and establishing a source-storage-load multi-terminal collaboration-based distributed voltage control model based on voltage security event trigger over a short timescale by taking into account the problems of voltage magnitude being out of limit and voltage leap, and solving online an optimal control sequence of the source terminal, the load terminal and the storage terminal in a receding horizo

Abstract: The present invention provides an in-situ method for synthesizing a Ni—W—WC composite coating, which includes the following steps: immersing a carbon steel substrate to be coated in an electroplating solution and electroplating, to obtain a Ni—W—C alloy coating on the surface of the carbon steel substrate; and then subjecting the alloy coating to high temperature heat treatment to obtain the Ni—W—WC composite coating. The electroplating solution comprises the following components: a nickel salt, a tungstate, citric acid, a citrate, a recarburizer, and a wetting agent. The present invention shows merits of simple operation, high current efficiency, simple electroplating process, and is clean and causes no pollution, thus meeting the requirements of environment protection.

Abstract: A method for ultrafast compound plane wave imaging based on a broadband acoustic metamaterial: controlling the transmit-receive ultrasonic probe to emit an ultrasonic signal at a preset transmit frequency and a first preset transmit angle, the preset transmit frequency is equal to a response frequency of the acoustic metamaterial structure; controlling the transmit-receive ultrasonic probe to receive, at a preset receive frequency and separately at a first preset receive angle, a second preset receive angle, a third preset receive angle, echo signals reflected by a measured object, where the preset receive frequency is n times the preset transmit frequency, the first preset receive angle is equal to the first preset transmit angle, the second preset receive angle is smaller than the first preset transmit angle, the third preset receive angle is larger than the first preset transmit angle; using the echo signals to reconstruct an image of the measured object.

Abstract: A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current gradient and a current vehicle speed of the vehicle; and determining whether to control the vehicle to unload the electric braking torque, and whether to control the vehicle to apply a mechanical braking torque according to the current vehicle speed, the braking torque required by the vehicle, the deceleration required by braking, and the current gradient. A braking device for a vehicle and a vehicle are further provided.

Abstract: A method of making a magnetically-drivable microrobot that is suitable for carrying and delivering cells includes photo-curing a photo-curable material composition to form a body of the magnetically-drivable microrobot. The photo-curable material composition includes a degradable component, a structural component, a magnetic component, and a photo-curing facilitation composition including a photoinitiator component and a photosensitizer component.

Abstract: The invention relates to the technical field of battery materials and discloses a cobalt-free layered nickel-manganese cathode material and a preparation method and application thereof. The chemical formula of the cobalt-free layered nickel-manganese cathode material is LiaNixMnyMezO2@Mb, and Me is at least one selected from the group consisting of Zr, Al, W, Sr, Ti and Mg; M is at least one selected from the group consisting of Al2O3, CeO2, TiO2, Yb2O3, Nb2O5, La2O3, WO3, titanium sol, aluminum sol, titanium-aluminum sol, aluminum isopropoxide, butyl titanate, aluminum dihydrogen phosphate or lithium tungstate. The present invention achieves a shallow coating through high temperature calcination followed by metal oxide coating, which is beneficial to prevent the material from microcracks expansion caused by the material structure and internal stress change during the charging-discharging cycles.

Abstract: Disclosed herein is a method for preparing a low-cost fully-biodegradable plant fiber starch tableware. A plant cellulose material containing dregs of Scutellaria baicalensis is modified to obtain a modified plant fiber starch blank. Konjac gum is subjected to pulverization and ultrafine pulverization to obtain a colloidal binder combined with a deacetylated konjac gum. The colloidal binder is mixed with the modified plant fiber starch blank to obtain a mixture. The mixture is subjected to foam molding in a forming mold to obtain the low-cost fully-biodegradable plant fiber starch tableware.

Abstract: Incidents may be monitored using a camera in response to an activation of a trigger device. Trigger data may be received over a communication network in response to activation of a trigger device disposed within a first area of a vehicle. A camera disposed within a second area of the vehicle may be controlled over the communication network in response to receiving the trigger data, the controlling causing the camera to capture sensor information of a passenger of the vehicle. Passenger information of the passenger of the vehicle may be obtained in response to receiving the trigger data. An alert notification may be generated. The alert notification may comprise at least a portion of the sensor information of the passenger, and the alert notification may be capable of initiating one or more incident actions associated with the passenger.

Abstract: An application accessing method can be applied to a terminal, and include: monitoring whether an application invokes privacy content; and authorizing the application with permission to access the privacy content, in response to monitoring that the application invokes the privacy content, and returning other information different from the privacy content. Therefore, the user can realize the purpose of protecting the security of the user's privacy information under the premise of normal use of the application.

Abstract: The present disclosure provides a performance prediction method and system for a fuel cell in an anode recirculation mode. The method includes: calculating output results of a membrane water transfer equation, a liquid water transfer equation, and a temperature transfer equation based on the membrane water transfer equation, the liquid water transfer equation, and the temperature transfer equation inside the fuel cell; calculating output results of a gas transfer equation based on output results of a first labeling equation according to a phenomenon of nitrogen transmembrane permeation inside the fuel cell; determining gas state parameters in the anode recirculation mode based on the output results of the temperature transfer equation and the gas transfer equation; and predicting output voltage performance of the fuel cell based on the gas state parameters in the anode recirculation mode and output results of a second labeling equation.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of HARQ for NR sidelink communication in unlicensed spectrum. The method comprises receiving, from a second device, an indication of at least two candidate sets of code domain resources for the first device to transmit a feedback message for a sidelink transmission between the first device and a third device; and transmitting, to the third device, the feedback message on a target set of code domain resources determined from the at least two candidate sets of code domain resources based on a listen before talk procedure. In this way, additional code domain resources may provide more available time occasions as backup resources for HARQ feedback of sidelink transmission in unlicensed band, which may increase reliability of HARQ feedback transmission for sidelink communication in unlicensed spectrum.

Abstract: Method, systems, and computer program products for access configuration in hybrid network environments are disclosed. According to the method, an access configuration request is received from a client device in a first network environment, wherein the access configuration request is associated with an access to a network resource in a second network environment and comprises first authentication information associated with the client device. Further, second authentication information associated with the network resource is obtained. The first and second authentication information is further used to determine whether the access configuration request is verified. If the access configuration request is verified, connectivity between the client device and the network resource can be automatically established.

Abstract: The present disclosure provides a discretization modeling method for electro-osmotic drag effect of water conservation in a fuel cell, comprising: establishing a conservation equation of membrane water in the fuel cell, performing a discretization for a complete electro-osmotic drag effect, obtaining a discretization simulation model of the complete electro-osmotic drag effect based on results of the discretization, solving the conservation equation of membrane water to establish a discretization simulation model of electro-osmotic drag effect of water conservation in the fuel cell. The discretization modeling method for the electro-osmotic drag effect of water conservation in a fuel cell in the present disclosure can perform a discretization and a numerical calculation for a complete electro-osmotic drag effect, the discretization comprising a water conservation portion caused by a membrane water content gradient and a water conservation portion caused by a proton transport flux gradient.

Abstract: Provided are a method for assaying a specific IgM antibody and a total antibody for the 2019 novel coronavirus (2019-nCOV), a method for determining whether subjects are infected with 2019-nCOV, and a virus antigen and a kit for carrying out the above-mentioned detection.

Abstract: A display panel and a display device are provided. The display panel has a display area. The display panel includes: a base substrate; a driving circuit and at least one signal line on the base substrate; and at least one insulating layer between the driving circuit and the at least one signal line. The driving circuit is disposed in a periphery of the display area; and an orthogonal projection of at least one of the signal lines on the base substrate has an overlapping area with an orthogonal projection of the driving circuit on the base substrate.

Abstract: A temperature demodulation method oriented toward a distributed fiber Raman temperature sensing system, the method comprising the following steps: step 1 of constructing a high-precision temperature detection device oriented towards a distributed fiber Raman sensing system; step 2 of performing signal processing with respect to Stokes light and anti-Stokes light at a calibration stage; step 3 of performing signal processing with respect to Stokes light and the anti-Stokes light at a measurement stage; and step 4 of obtaining a high-precision temperature demodulation technique oriented toward the distributed fiber Raman sensor. The method is used to effectively resolve the issue of low temperature measuring accuracy caused by Rayleigh crosstalk in existing distributed fiber Raman temperature measurement systems, and temperature measurement accuracy thereof is expected to fall within ±0.1° C. The method is applicable to distributed fiber Raman temperature measurement systems.

Abstract: The present application provides a composite brake disc, the preparation method thereof and a friction stir tool. The composite brake disc comprises: an aluminum alloy base layer, and an aluminum matrix composite layer, where the aluminum alloy base layer and the aluminum matrix composite layer are bonded with each other through metallurgical bonding. A transition layer is formed at the boundary surface where the aluminum alloy base layer and the aluminum matrix composite layer are bonded with each other. A reinforced structure connecting the aluminum alloy base layer and the aluminum matrix composite layer is formed in the transition layer.