Abstract: A power system of a vehicle includes an engine, a first motor and a second motor. A method for controlling motion of the vehicle includes: receiving a cruise speed, a speed fluctuation quantity and a preset traveling mileage of the vehicle, and obtaining an upper speed bound and a lower speed bound of the vehicle based on the cruise speed and the speed fluctuation quantity; adjusting a current speed of the vehicle to the lower speed bound, and controlling the vehicle to enter a first cruise phase of a two-phase cruise mode; and controlling the vehicle to enter a second cruise phase of the two-phase cruise mode when the current speed of the vehicle is greater than or equal to the upper speed bound and a current traveling mileage is less than the preset traveling mileage.

Abstract: Embodiments of the present disclosure provide a method and a device for cross-domain strong logically isolation and secure access control in the Internet of Things (IoT). The method includes the following. When one IoT gateway receives the identity authentication request, the IoT gateway sends the identity authentication request to all IoT gateways in the domain excluding that IoT gateway. When all IoT gateways in the domain receive the identity authentication request, all IoT gateways verify separately whether the identity authentication request is legal. After a certain IoT gateway obtains the identity authentication result, a distributed consensus procedure is initiated. The IoT gateways in the domain reach a consensus on the identity authentication result through a distributed consensus mechanism, and the identity authentication result is written and stored to a block of a blockchain.

Abstract: Embodiments of the present disclosure provide a secure communication method, a client and a non-public server. The secure communication method includes: generating a set of destination addresses of a non-public server based on an IPv6 prefix of the non-public server, and a signature string and a user ID of a client, wherein the signature string is obtained by signing an IPv6 address and the user ID of the client based on a private key of the client; initiating a set of connection request to the non-public server based on a set of communication connections containing the set of destination addresses, for the non-public server to determine a public key corresponding to a user ID based on the user ID in the set of destination addresses, verifying the set of communication connections based on the public key, and establishing communication when the verification of the set of communication connections passes.

Abstract: A method of making a carbon nanotube bundle is provided. A plurality of carbon nanotubes is provided. A plurality of sulfur nanoparticles is disposed on the plurality of carbon nanotubes to form at least two visible carbon nanotubes. The at least two visible carbon nanotubes are stacked to form a carbon nanotube bundle preparation body. The plurality of sulfur nanoparticles in the carbon nanotube bundle preparation body is removed to obtain the carbon nanotube bundle.

Abstract: Disclosed are a video stitching method and a video stitching device. The video stitching method is applicable for stitching a first video and a second video, and includes: performing feature extraction, feature matching and screening on a first target frame of the first video and a second target frame of the second video, so as to obtain a first feature point pair set; performing forward tracking on the first target frame and the second target frame, so as to obtain a second feature point pair set; performing backward tracking on the first target frame and the second target frame, so as to obtain a third feature point pair set; and calculating a geometric transformation relationship between the first target frame and the second target frame according to a union of the first feature point pair set, the second feature point pair set and the third feature point pair set.

Abstract: There are provided a neural network weight discretizing method, system and device, and a computer readable storage medium. The method includes acquiring a weight value range and a number of discrete weight states, the weight value range referring to a range of discrete weight values consisting of a maximum weight value of a current time step and a minimum weight value of the current time step, and the number of discrete weight states referring to the quantity of discrete weight states. The method also includes acquiring a weight state of a previous time step and a weight increment of the current time step and acquiring a state transfer direction by using a directional function according to the weight increment of the current time step. The method also includes acquiring a weight state of the current time step according to the weight state of the previous time step, the weight increment of the current time step, the state transfer direction, the weight value range and the number of discrete weight states.

Abstract: The invention provides a method for preparing drinking weak alkali water and strontium-rich electrolyte raw water from distilled water obtained in the process of producing salt from well and mine brine, which comprises procedures of pressure reduction treatment, primary filtration, membrane separation treatment, activated carbon adsorption treatment, secondary filtration treatment, sterilization and disinfection treatment and the like on the salt-making distilled water in sequence so as to remove insoluble solid impurities, sulfides, microorganisms and other substances in the raw water, and separate or enrich ions, thereby preparing the weak alkali water suitable for drinking and the strontium-rich electrolyte raw water capable of being used for functional beverage production. The method provided by the invention can not only realize the comprehensive utilization of resources, but also obtain new products, significantly improving the economical efficiency of the process.

Abstract: A vision-LiDAR fusion method and system based on deep canonical correlation analysis are provided. The method comprises: collecting RGB images and point cloud data of a road surface synchronously; extracting features of the RGB images to obtain RGB features; performing coordinate system conversion and rasterization on the point cloud data in turn, and then extracting features to obtain point cloud features; inputting point cloud features and RGB features into a pre-established and well-trained fusion model at the same time, to output feature-enhanced fused point cloud features, wherein the fusion model fuses RGB features to point cloud features by using correlation analysis and in combination with a deep neural network; and inputting the fused point cloud features into a pre-established object detection network to achieve object detection. A similarity calculation matrix is utilized to fuse two different modal features.

Abstract: A laser remote control switching system comprises a laser source and a control circuit. The control circuit comprises a power, an electronic device, a first electrode, a second electrode, and a photosensitive element electrically connected in sequence to form a loop. Each of the two nanofiber actuators comprises a composite structure and a vanadium dioxide layer. The composite structure comprises a carbon nanotube wire and an aluminum oxide layer. The aluminum oxide layer is coated on a surface of the carbon nanotube wire, and the aluminum oxide layer and the carbon nanotube wire are located coaxially with each other. The vanadium dioxide layer is coated on a surface of the composite structure, and the vanadium dioxide layer and the composite structure are located non-coaxially with each other.

Abstract: An infrared stealth cloth includes a cloth substrate and an infrared light absorber located on the cloth substrate. The infrared light absorber includes a first drawn carbon nanotube film, a second drawn carbon nanotube film, and a third drawn carbon nanotube film stacked on each other. The first drawn carbon nanotube film includes a plurality of first carbon nanotubes substantially extending along a first direction. The second drawn carbon nanotube film includes a plurality of second carbon nanotubes substantially extending along a second direction. The third drawn carbon nanotube film includes a plurality of third carbon nanotubes substantially extending along a third direction. The first direction and the second direction form an angle of about 42 degrees to about 48 degrees, and the first direction and the third direction form an angle of about 84 degrees to about 96 degrees.

Abstract: Methods and systems for reverse design of micro-nano structure based on a deep neural network. The method includes step 101 of acquiring initial data of a micro-nano structure according to the micro-nano structure to be reversely designed. The method also includes step 102 of inputting the initial data of the micro-nano structure into a trained optical parameter prediction model to obtain optical prediction parameters. The method further includes step 103 of evaluating the optical prediction parameters. The method also includes optimizing the initial data of the micro-nano structure, inputting the optimized data of the micro-nano structure into the trained optical parameter prediction model, and performing steps 102 and 103 again until the evaluation result of the optical prediction parameters obtained in a current iteration satisfies the preset condition. Through the method of the present application, the electromagnetic response calculation time of the reverse design is greatly shortened.

Abstract: The disclosure relates to a method for making an iron telluride including placing Fe, Bi, and Te in a reacting chamber as reacting materials. The reacting chamber is evacuated to be a vacuum with a pressure lower than 10 Pa. The reacting chamber is heated to a first temperature of 700 degrees Celsius to 900 degrees Celsius and keeping the first temperature for a period of 10 hours to 14 hours. Then the reacting chamber is cooled to a second temperature of 400 degrees Celsius to 700 degrees Celsius within 60 hours to 75 hours and keeping the second temperature for a period of 40 hours to 50 hours, to obtain a reaction product including a FeTe0.9 single crystal. The FeTe0.9 single crystal is separated from the reaction product.

Abstract: A magnetic liquid sealing device includes a housing, a rotating shaft, a first pole shoe, a second pole shoe, a plurality of permanent magnets, a rotation ring, and a sealing block. A chamber is defined in the housing including a first housing and a second housing. The rotating shaft passes through and is rotatable. The first pole shoe and the second pole shoe surround the rotating shaft and are spaced apart. The plurality of permanent magnets between the first pole shoe and the second pole shoe are spaced apart. The rotation ring surrounds the rotating shaft and is rotatable. The first housing, the rotation ring, and the second housing define the chamber. The rotation ring on outer sides of the plurality of permanent magnets is defined with a through hole running through the rotation ring. The sealing block in the through hole is detachably connected to the rotation ring.

Abstract: A five-degree-of-freedom heterodyne grating interferometry system, comprising a single frequency laser device (1) and an acousto-optic modulator (2); the single frequency laser device (1) emits a single frequency laser, and the single frequency laser is coupled by optical fiber and, after being split, enters the acousto-optic modulator (2) to obtain two linearly polarized lights of different frequencies, one being a reference light, and one being a measurement light; an interferometer lens group (3) and a measurement grating (4), used for forming the reference light and the measurement light into a measurement interference signal and a compensation interference signal; and multiple optical fiber bundles (5), respectively receiving the measurement interference signal and the compensation interference signal, each optical fiber bundle (5) having multiple multimode optical fibers respectively receiving signals at different positions on the same plane.

Abstract: A high temperature resistant wire is provided. The high temperature resistant wire comprises a carbon nanotube wire and a boron nitride layer coated on a surface of the carbon nanotube wire. The boron nitride layer is coaxially arranged with the carbon nanotube wire. A working temperature of the high temperature resistant wire in the air ranges from 0K to 1600K. A working temperature of the high temperature resistant wire in vacuum ranges from 0K to 2500K. A detector using the high temperature resistant wire is also provided.

Abstract: A electronic blackbody cavity is provided. The electronic blackbody cavity comprises an inner surface; a chamber surrounded by the inner surface; an opening configured to make an electron beam enter the chamber; and a porous carbon material layer located on the inner surface. The porous carbon material layer consists of a plurality of carbon material particles and a plurality of micro gaps. The plurality of micro gaps are defined by the plurality of carbon material particles. A secondary electron detection device using the electronic blackbody cavity is also provided.

Abstract: Disclosed are inhibitors of mevalonate pathway as an efficient vaccine adjuvant and use thereof. In particular, the inhibitor is an acetoacetyl-CoA transferase inhibitor, a HMG-CoA synthase inhibitor, a HMG-CoA reductase inhibitor, a mevalonate kinase inhibitor, a phosphomevalonate kinase inhibitor, a mevalonate-5-pyrophosphate decarboxylase inhibitor, an isopentenyl pyrophosphate isomerase inhibitor, a farnesyl pyrophosphate synthase inhibitor, a geranylgeranyl pyrophosphate synthase inhibitor or a geranylgeranyl transferase (I, II) inhibitor. Also disclosed is an immunogenic composition comprising inhibitors of mevalonate pathway as an adjutant.

Abstract: Embodiments of the present application disclose a safety control method and a safety control system based on environmental risk assessment for an intelligent connected vehicle. The method includes: when a vehicle is in an automatic driving mode, acquiring environmental parameter information of the vehicle in a current driving environment; determining a target driving control parameter which meets a preset safe driving condition under the current environmental parameter; and managing a current automatic driving level of the vehicle by using the target driving control parameter.

Abstract: An addressing system, an addressing apparatus and a computing apparatus are provided. The addressing system includes a first acousto-optic processing component and a second acousto-optic processing component. The first acousto-optic processing component is used for generating a diffraction beam for an addressing operation in a preset number of dimensions. The second acousto-optic processing component is used for determining emitting directions of the generated diffraction beam in various dimensions, and outputting a diffraction beam according to the determined emitting directions to perform an addressing operation for a qubit array in the preset number of dimensions. A first radio frequency of the diffraction beam generated by the first acousto-optic processing component is used for compensating for a second radio frequency of diffraction beams outputted by the second acousto-optic processing component from different emitting directions.

Abstract: A method and an apparatus for camera-free light field video processing with all-optical neural network are disclosed. The method includes: mapping the light field video by a digital micro-mirror device (DMD) and an optical fiber coupler, a two-dimensional 2D spatial optical signal into a one-dimensional 1D input optical signal; realizing a multiply-accumulate computing model in a structure of all-optical recurrent neural network structure, and processing the 1D input signal to obtain the processed signal; and receiving the processed signal and outputting an electronic signal by a photodetector, or receiving the processed signal by a relay optical fiber for relay transmission of the processed signal. The method and system here realize light field video processing without the use of a camera and the whole system is all-optical, thus possessing the advantage in computing speed and energy-efficiency.