Abstract: The present application discloses an NAT detection method between network nodes, a device, and a storage medium. The method includes: a request node obtains first node information, takes the obtained first node information as payload data of an NAT detection request message or an NAT detection result request message, performs IP packet encapsulation on the NAT detection request message or the NAT detection result request message, performs protection processing on an NAT detection request packet obtained after encapsulation, sends the NAT detection request packet to a response node; and the response node performs deprotection processing on the received NAT detection request packet and obtains the payload data of the NAT detection request message or the NAT detection result request message, compares the obtained payload data with corresponding content in a first IP header of the NAT detection request packet, and determines an NAT detection result according to the comparison result.

Abstract: A network access method and apparatus, relating to the technical field of communications. The method comprises: a terminal determining, according to a selected target network, an auxiliary network associated with the target network (S201); connecting the auxiliary network, and obtaining a digital certificate from the auxiliary network (S202), the digital certificate being used for accessing the target network; installing the digital certificate (S203); and accessing the target network by using the digital certificate (S204). According to the method, the digital certificate for accessing the target network is obtained on the basis of the auxiliary network, networking operation steps are simplified, and the usability is improved.

Abstract: A vision-based enhanced omni-directional defect detection method is provided. The method includes: performing posture adjustment on equipment, changing an equipment angle and a transmission speed, acquiring a multi-angle detection picture, and performing information fusion and classification. By means of the method, the influence of natural and human factors is solved, the problem of missing detection is solved by adoption of defect feature enhancement, and the part detection accuracy is improved.

Abstract: An energizing element including: an energizing element body oriented about a central axis, the energizing element body defining an inner radius, IR, and an outer radius, OR, where the difference between the outer radius and the inner radius defines an adjusted width, W, of the energizing element body, where the inner radius and the outer radius determine an average radius, R, of the energizing element body about the central axis, where the energizing element body defines an aspect ratio, W/R, where W/R>0.1, where the energizing element body has a maximum linear contact length on the inner radius, LIR, where the energizing element body has a perimeter on the inner radius, PIR, and LIR/PIR>0.80, where the energizing element body has a maximum linear contact length on the outer radius, LOR, where the energizing element body has a perimeter on the outer radius, POR, and LOR/POR>0.55, and where the adjusted width is less than 5 mm.

Abstract: The present application discloses a child safety car seat having a main body and a fireproof buffering structure disposed on the main body. The fireproof buffering structure includes a buffering plate and a fireproof plate attached to or neighboring to the buffering plate, and the fireproof plate is closer to a seating space of the child safety car seat than the buffering plate. In contrast to conventional child safety car seats, the fireproof buffering structure of the present application adopts the combined buffering plate and fireproof plate. The buffering plate has good impact absorbing capacity for providing a soft and comfortable seating environment and buffering and protection effects during a crash accident, and the fireproof plate can reduce the combustion rate of the integral structure when catching fire. Therefore, the child safety car seat achieves the purposes of safety and comfort.

Abstract: A seal including: annular jacket including a body including a heel, a first lip, and a second lip defining an annular recess, the first lip including an arcuate exterior portion, and having a thickness, WFL, and a length LFL; and an annular energizer disposed within the annular recess, adjacent to at least one of the first lip and the second lip, wherein the heel comprises a cutout portion, and wherein the ratio of LFL:WFL is greater than 2.

Abstract: The present application discloses a child safety car seat having a main body and a fireproof buffering structure disposed on the main body. The fireproof buffering structure includes a buffering plate and a fireproof plate attached to or neighboring to the buffering plate, and the fireproof plate is closer to a seating space of the child safety car seat than the buffering plate. In contrast to conventional child safety car seats, the fireproof buffering structure of the present application adopts the combined buffering plate and fireproof plate. The buffering plate has good impact absorbing capacity for providing a soft and comfortable seating environment and buffering and protection effects during a crash accident, and the fireproof plate can reduce the combustion rate of the integral structure when catching fire. Therefore, the child safety car seat achieves the purposes of safety and comfort.

Abstract: Disclosed in the present application are an identity authentication method and apparatus, and a device, a chip, a storage medium and a program. The identity information of a requesting device is confidentially processed to prevent the identity information of the requesting device from being exposed during transmission, thereby ensuring that an attacker cannot obtain the private information of the requesting device. In addition, by introducing an authentication server, real-time two-way identity authentication between the requesting device and an authentication access controller is achieved while ensuring the confidentiality of entity identity-related information.

Abstract: Disclosed is an identity authentication method. During the process of a requesting device authenticating the identity of an authentication access controller, confidentiality processing is performed on identity information that carries private and sensitive information, and identity authentication result information, thus private and sensitive information can be prevented from being exposed, such that an attacker cannot acquire private and sensitive information in a first authentication response message or an authentication result message even if they have intercepted same, thereby preventing an attack of an attacker on a legitimate authentication access controller, and ensuring the security of the authentication access controller, the requesting device and even a network. Further disclosed are an identity authentication apparatus, a storage medium, a program, and a program product.

Abstract: Disclosed in embodiments of the present application are an identity authentication method. Bidirectional or unidirectional identity authentication between an authentication access controller and a requesting device is implemented by using a pre-shared key, thereby laying a foundation for ensuring that a user accessing a network is legitimate and/or a network accessed by a user is legitimate, so as to implement secret communication between the requesting device and the authentication access controller. In addition, in an identity authentication process, a verified party performs calculation on information comprising the pre-shared key of two parties and random numbers respectively generated by the two parties to obtain an identity authentication key, and performs calculation on specified content by using the identity authentication key to obtain an identity authentication code of the verified party.

Abstract: The present disclosure relates to the technical field of automobile part processing, and specifically provides a clamping device and a sandblasting device for automobile part processing. The clamping device comprises a clamping component for clamping an automobile part, and an auxiliary component; the auxiliary component comprises a supporting part, a pull rod, a protective pad, and a return spring, wherein the pull rod is movably provided on the supporting part, one end of the pull rod is connected to the protective pad having deformation performance, and the protective pad is used for being arranged between the automobile part and the clamping component; the return spring is used for being installed between the supporting part and the protective pad; the pull rod is pulled so that the pull rod pulls the protective pad to move towards the direction close to the supporting part.

Abstract: The present disclosure relates to the technical field of automobile part processing, and specifically provides a spray head device and a sandblasting device for automobile part processing. The spray head device comprises a spray head body and a connecting pipe. A conical through hole is penetratingly arranged in the spray head body, one end of the conical through hole forms a discharge port, the other end of the conical through hole forms a feed port, the caliber of the feed port is greater than that of the discharge port, the connecting pipe is fixedly connected to one end of the feed port of the spray head body, and the connecting pipe is coaxially arranged with the conical through hole; the conical through hole is penetratingly provided in the spray head body.

Abstract: A dust collecting and blocking member with an aperture for a camera module, includes a frame body and an adhesive connected to the frame body. The frame body includes a first surface and a second surface opposites to the first surface, the aperture penetrates the first surface and the second surface, the first surface is recessed inwardly to form an annular groove, the annular groove circles the aperture. The adhesive is disposed inside the annular groove, and the frame body and adhesive function together to block trap and hold any dust present during manufacture of the camera module, to avoid an image quality which is less than optimal.

Abstract: An ultrasonic transducer including a membrane film and a perforated baseplate. The baseplate can have a conductive surface with a plurality of perforations formed through the baseplate. The membrane film can have a conductive surface and be positioned under tension proximate to the perforations formed through the baseplate. The tension of the membrane film can be controlled to provide a restoring force to counteract the moving mass of the membrane film, and the moving mass of air in the perforations of the baseplate. By selecting the diameter(s) of the perforations of the baseplate, the thickness of the baseplate, the thickness of the membrane film, the tension of the membrane film, and/or the bending stiffness of the membrane film, a wide bandpass frequency response of the ultrasonic transducer centered at an ultrasonic frequency of interest can be obtained and tailored to a desired application.

Abstract: A seal including: an annular jacket including a body including a first lip, and a second lip defining an annular recess, the first lip including an arcuate exterior portion, the second lip including a rectilinear exterior portion and a rectilinear, tapered edge; and an annular energizer disposed within the annular recess, adjacent to at least one of the first lip and the second lip.

Abstract: Disclosed in the present invention are a credential information processing method and apparatus for network connection, and an application (APP). The method comprises: in response to an instruction for applying for a network credential for a second terminal, a first terminal sends a first credential downloading request to a server; the first terminal receives first credential information sent by the server; and the second terminal receives the first credential information sent directly by the first terminal from a system memory of the first terminal and a network identifier of a wireless network to be connected, the second terminal stores the first credential information directly into a secure storage region of the second terminal from a system memory of the second terminal, and the second terminal connects a wireless network corresponding to the network identifier by using the first credential information in the secure storage region.

Abstract: The present application discloses a child safety car seat having a main body and a fireproof buffering structure disposed on the main body. The fireproof buffering structure includes a buffering plate and a fireproof plate attached to or neighboring to the buffering plate, and the fireproof plate is closer to a seating space of the child safety car seat than the buffering plate. In contrast to conventional child safety car seats, the fireproof buffering structure of the present application adopts the combined buffering plate and fireproof plate. The buffering plate has good impact absorbing capacity for providing a soft and comfortable seating environment and buffering and protection effects during a crash accident, and the fireproof plate can reduce the combustion rate of the integral structure when catching fire. Therefore, the child safety car seat achieves the purposes of safety and comfort.