Abstract: A zinc aluminium silicate nanoparticles/granular red mud (ZAS/GRM) composite material of Zn2+-modified industrial waste red mud and a preparation method and application thereof are disclosed, belonging to the technical field of adsorbent preparation. The industrial waste red mud is used as a raw material to prepare Zn2+-modified red mud for ZAS/GRM adsorbent.

Abstract: A motor having multiple cooling flow channels, includes a housing, a stator, and a rotor. The stator comprises a winding. The housing comprises a cooling liquid inlet, an arc-shaped flow channel, and a cooling liquid outlet; the arc-shaped flow channel is defined around the housing and connected to the stator core; the rotor comprises a rotor flow channel; both the rotor flow channel and the arc-shaped flow channel are communicated with the cooling liquid inlet and outlet; and the rotor flow channel and the arc-shaped flow channel respectively correspond to two ends of the winding. A cooling liquid enters the arc-shaped flow channel for cooling the housing and a stator core of the motor, and enters the rotor flow channel for cooling the rotor. The cooling liquid flows through the rotor flow channel and the arc-shaped flow channel for respectively cooling the ends of the winding.

Abstract: A zinc aluminium silicate nanoparticles/granular red mud (ZAS/GRM) composite material of Zn2+-modified industrial waste red mud and a preparation method and application thereof are disclosed, belonging to the technical field of adsorbent preparation. The industrial waste red mud is used as a raw material to prepare Zn2+-modified red mud for ZAS/GRM adsorbent.

Abstract: A motor having multiple cooling flow channels, includes a housing, a stator, and a rotor. The stator comprises a winding. The housing comprises a cooling liquid inlet, an arc-shaped flow channel, and a cooling liquid outlet; the arc-shaped flow channel is defined around the housing and connected to the stator core; the rotor comprises a rotor flow channel; both the rotor flow channel and the arc-shaped flow channel are communicated with the cooling liquid inlet and outlet; and the rotor flow channel and the arc-shaped flow channel respectively correspond to two ends of the winding. A cooling liquid enters the arc-shaped flow channel for cooling the housing and a stator core of the motor, and enters the rotor flow channel for cooling the rotor. The cooling liquid flows through the rotor flow channel and the arc-shaped flow channel for respectively cooling the ends of the winding.

Abstract: This application relates to an artificial intelligence-based identity verification method and apparatus, a computer device, and a storage medium. The method includes: obtaining a to-be-verified face image inputted into a verification device; performing artificial intelligence-based device tracing processing on the face image, to obtain a photographing device identifier corresponding to a photographing device of the face image; obtaining a verification device identifier corresponding to the verification device; performing feature comparison on the photographing device identifier and the verification device identifier to obtain a comparison result; and performing identity verification based on the face image in a case that the comparison result indicates that the photographing device and the verification device are a same device.

Abstract: A face liveness detection method is provided, and includes: receiving an image transmitted by a terminal, the image including a face of an object; performing data augmentation on the image, to obtain an extended image corresponding to the image, a number of extended images corresponding to the image being more than one; performing liveness detection on the extended images corresponding to the image, to obtain intermediate detection results of the extended images, a liveness detection model used in liveness detection being obtained by performing model training on an initial neural network model according to a sample image and extended sample images corresponding to the sample image; and obtaining a liveness detection result of the object in the image after fusing the intermediate detection results of the extended images.

Abstract: Methods, apparatus, systems, and storage medium for a face liveness detection are provided. The method includes obtaining an image comprising a face of an object; extracting an image feature of the image through an encryption network in a joint model for encryption and detection; performing image reconstruction based on the image feature to obtain an encrypted image corresponding to the image, the encrypted image being different in image content from the image; transmitting the encrypted image to a liveness detection server, wherein the liveness detection server is configured to perform liveness detection on the encrypted image through a detection network in the joint model for encryption and detection to obtain a liveness detection result of the object in the image; and receiving the liveness detection result of the object in the image from the liveness detection server.

Abstract: An attitude adjustment apparatus for a self-propelled bio-inspired robotic fish includes a fish body, where the fish body includes: a housing; a center-of-gravity adjustment assembly, located in the housing to adjust a center of gravity of the fish body, and including at least one counterweight and a screw-slider mechanism that drives the counterweight to move in a head-to-tail direction; and a suction and drainage system, located in the housing to adjust a weight of the fish body, and including a ballast tank and a water control assembly for controlling a water level in the ballast tank. The center-of-gravity adjustment assembly is combined with the suction and drainage system to rapidly change the weight and center of gravity of the fish body, so as to quickly adjust the pitching attitude and heaving state of the robotic fish.

Abstract: A nano-emulsion composition having a small particle size and ultra-low concentration and a preparation method thereof is disclosed. The raw materials of the composition comprise, in terms of percentage by weight, 0.002% to 0.2% of a polymer-containing homogeneous microemulsion, water, and 99.998% to 99.8% of an organic salt solution or inorganic salt solution. The composition is prepared by diluting a polymer-containing homogeneous microemulsion with water or a salt solution. The polymer-containing homogeneous microemulsion is formed by mixing the following raw materials, in terms of percentage by weight: 8% to 40% of a surfactant, 0.5% to 10% of a polymer, 10% to 30% of an alcohol, 3% to 30% of an oil, 0% to 20% of a salt, and balance of water. The composition of the invention is low in concentration, low in cost, narrow in particle size distribution, good in stability, simple in preparation, and convenient for storage and use.

Abstract: A method for connecting a network access device to a wireless network access point includes: initiating an access request to a wireless network access point, wherein when detecting that the network access device is not authenticated, the wireless network access point redirects the access request to an authentication portal, the access request carrying an authentication server address; obtaining, by an application client on the network access device, an authentication parameter after obtaining authentication authorization of a user on the authentication portal; encrypting the authentication parameter by using a wireless access key; initiating, according to the authentication server address, an authentication request carrying the encrypted authentication parameter to an authentication server; receiving the login address and the encrypted signature from the authentication server; accessing the login address on the authentication server; and connecting to the wireless network access point to access the Internet a

Abstract: A nano-emulsion composition having a small particle size and ultra-low concentration and a preparation method thereof is disclosed. The raw materials of the composition comprise, in terms of percentage by weight, 0.002% to 0.2% of a polymer-containing homogeneous microemulsion, water, and 99.998% to 99.8% of an organic salt solution or inorganic salt solution. The composition is prepared by diluting a polymer-containing homogeneous microemulsion with water or a salt solution. The polymer-containing homogeneous microemulsion is formed by mixing the following raw materials, in terms of percentage by weight: 8% to 40% of a surfactant, 0.5% to 10% of a polymer, 10% to 30% of an alcohol, 3% to 30% of an oil, 0% to 20% of a salt, and balance of water. The composition of the invention is low in concentration, low in cost, narrow in particle size distribution, good in stability, simple in preparation, and convenient for storage and use.

Abstract: A method for connecting a network access device to a wireless network access point includes: initiating an access request to a wireless network access point, wherein when detecting that the network access device is not authenticated, the wireless network access point redirects the access request to an authentication portal, the access request carrying an authentication server address; obtaining, by an application client on the network access device, an authentication parameter after obtaining authentication authorization of a user on the authentication portal; encrypting the authentication parameter by using a wireless access key; initiating, according to the authentication server address, an authentication request carrying the encrypted authentication parameter to an authentication server; receiving the login address and the encrypted signature from the authentication server; accessing the login address on the authentication server; and connecting to the wireless network access point to access the Internet a