Abstract: A main frame structure having box-section bearing beams of a launch vehicle engine includes a body. The body includes upper bearing table tops, lower bearing table tops, a cross gasket, a connecting ring and the box-section bearing beams. The box-section bearing beam includes an upper surface, a lower surface and two side beam walls, and has a cavity structure. Penetrating transverse ribs penetrating the two side beam walls are arranged on the box-section bearing beams, and one ends of the box-section bearing beams are circumferentially distributed at an outer side of the connecting ring. The lower bearing table tops are arranged at the outer side of the connecting ring, the lower bearing table tops are connected to the cross gasket, and the other ends of the upper surfaces and the lower surfaces are connected by means of arc chamfers and are connected to the upper bearing table tops.

Abstract: A card tray structure, a card tray assembly, and an electronic device. The card tray structure includes a card tray. The card tray includes a supporting body. The supporting body is a frame enclosed by a frame edge. A first platform portion is arranged at an edge on one side of the frame edge to form a first card slot, and a second platform portion is arranged at an edge on an other side of the frame edge to form a second card slot. The card tray further include: a first connecting beam and a second connecting beam, where the first connecting beam is arranged correspondingly to the second card slot, and the second connecting beam is arranged correspondingly to the first card slot.

Abstract: The present disclosure discloses a clock signal noise reduction device and noise reduction method, and a multi-phase delay phase-locked loop. The clock signal noise reduction device includes a phase generator, a phase selector, and a frequency divider. The phase generator is configured to generate a multi-phase clock signal based on an input signal. The phase selector has an input end connected with an output end of the phase generator, and is configured to select a channel of the multi-phase clock signal based on phase information and assign a delay of a preset period to a clock signal of the selected channel. The preset period is less than a cycle period of the multi-phase clock signal. The frequency divider has an input end connected to an output end of the phase selector, and is configured to perform fractional frequency division on the multi-phase clock signal delayed by the preset period.

Abstract: A centralized control system of a vehicle includes a control unit and a display screen. The control unit is capable of controlling the display screen to display instrument images and entertainment images in at least two different and switchable display modes based on at least two operating systems. In a first (instrument-focused) display mode, the instrument images and the entertainment images displayed on the display screen are both generated under control of the first operating system and an area occupied by the instrument images on the display screen is greater than an area occupied by the entertainment images on the display screen. In a second (entertainment-focused) display mode, an area occupied by the instrument images on the display screen is less than or equal to an area occupied by the entertainment images on the display screen, with at least some of the entertainment images generated by the second operating system.

Abstract: An automatic test system and method for mechanical parameters of surrounding rock applicable to a TBM. The system includes: an aggregate portion collecting a rock slag in a TBM tunneling process in real time; a gripping portion gripping any rock slag from obtained rock slags; a visual processing apparatus performing three-dimensional imaging for a rock slag under test in an infrared ranging manner; calculating positions of loading points for an abrasiveness test experiment, and determining, based on a spacing between loading points, whether rock slag under test meets a requirement; and determining actual positions of loading points if the rock slag under test meets the requirement, and determining a region, on a surface of rock slag, that meets a set condition as an action region for abrasiveness test experiment; and a rock abrasiveness test apparatus automatically performing an abrasiveness test for a rock slag under test that meets a requirement.

Abstract: Provided herein are probes in which an Ap site of a probe strand can selectively cross-link with a 2?-deoxyguanosine (dG) of a target strand. Also provided for are methods of using such probes to generate and detect crosslinked molecules and methods of detecting disease associated genetic mutations.

Abstract: An automatic test system and method for mechanical parameters of surrounding rock applicable to a TBM. The system includes: an aggregate portion collecting a rock slag in a TBM tunneling process in real time; a gripping portion gripping any rock slag from obtained rock slags; a visual processing apparatus performing three-dimensional imaging for a rock slag under test in an infrared ranging manner; calculating positions of loading points for an abrasiveness test experiment, and determining, based on a spacing between loading points, whether rock slag under test meets a requirement; and determining actual positions of loading points if the rock slag under test meets the requirement, and determining a region, on a surface of rock slag, that meets a set condition as an action region for abrasiveness test experiment; and a rock abrasiveness test apparatus automatically performing an abrasiveness test for a rock slag under test that meets a requirement.

Abstract: A method for evaluating a consistency of a battery pack is provided, including: obtaining an initial/real rated capacity and an initial/real dischargeable electric quantity of each cell in a battery pack after a charge and discharge cycle of the battery pack; generating a first/second data diagram for every cells based upon the initial/real rated capacity and the initial/real dischargeable electric quantity; obtaining a first/second information of key cells in the first/second data diagram, defining an initial/real cell distribution region according to the first/second information by processing the first/second data diagram, and calculating a first/second area of the initial/real cell distribution region; and evaluating the consistency of the battery pack according to the first/second area. A strategy for balancing the battery pack is further provided.

Abstract: A method for generating a data diagram is provided, including: obtaining a first data of each cell in a battery pack during a charge and discharge cycle of the battery pack; calculating a rated capacity and a dischargeable electric quantity of each cell based upon the data obtained; and generating a first data diagram for every cell of the battery pack based upon the rated capacity and the dischargeable electric quantity of each cell. A method for managing the battery pack based on the data diagram is further provided.

Abstract: A method for creating a knowledge representation model for a product includes: systematically capturing and representing knowledge and experience generated in product design and production processes, classifying the knowledge into five aspects, namely requirement, function, behavior, structure and evolution, and transforming unstructured tacit knowledge into structured knowledge in terms of know-what, know-how and know-why. Based on the knowledge representation model and knowledge bases, the present invention can be used to guide the construction of corresponding geometric model libraries, material libraries and process libraries, etc., and then to create design big data. The present invention can also be combined with an intelligent recommendation algorithm to intelligently recommend relevant data, information and knowledge based on the design engineers' working context and tasks undertaken.

Abstract: A method for generating a data diagram is provided, including: obtaining a first data of each cell in a battery pack during a charge and discharge cycle of the battery pack; calculating a rated capacity and a dischargeable electric quantity of each cell based upon the data obtained; and generating a first data diagram for every cell of the battery pack based upon the rated capacity and the dischargeable electric quantity of each cell. A method for managing the battery pack based on the data diagram is further provided.

Abstract: A method for evaluating a consistency of a battery pack is provided, including: obtaining an initial/real rated capacity and an initial/real dischargeable electric quantity of each cell in a battery pack after a charge and discharge cycle of the battery pack; generating a first/second data diagram for every cells based upon the initial/real rated capacity and the initial/real dischargeable electric quantity; obtaining a first/second information of key cells in the first/second data diagram, defining an initial/real cell distribution region according to the first/second information by processing the first/second data diagram, and calculating a first/second area of the initial/real cell distribution region; and evaluating the consistency of the battery pack according to the first/second area. A strategy for balancing the battery pack is further provided.

Abstract: Techniques for operating a voice-activated computing device are provided. These techniques can be used to prevent voice-based attacks on such devices. An example method according to these techniques includes receiving audio content comprising a voice command, monitoring electromagnetic (EM) emissions using an EM detector of the voice-activated computing device, determining whether the audio content comprising the voice command was generated electronically or was issued by a human user based on the EM emissions detected while receiving the audio content comprising the voice command, and preventing the voice command from being executed by the voice-activated computing device responsive to determining that the voice command was generated electronically.

Abstract: A camera module includes a base and at least one camera unit. The camera unit is mounted on the base, and the camera unit includes a circuit substrate, an image sensor, a lens assembly, a circuit board, a plurality of metal wires. The circuit substrate is rectangular, and has four edges and a plurality of first pads. The first pads are located along two adjacent edges of the circuit substrate. The image sensor and the lens assembly are mounted on the circuit substrate. The circuit board has two notched edges and a plurality of second pads. The second pads are located along the two notched edges of the circuit board. The second pads correspond to the first pads. Each second pad is connected to a corresponding first pad by one of the metal wires. The camera module uses wire bonding to connect the circuit substrate to the circuit board.

Abstract: The present disclosure discloses a method for evaluating a search prompting system and a corresponding apparatus. The method includes: extracting corresponding assessment terms at random according to an assessment target; acquiring in sequence a minimum number of words that needs to be entered to cover each of the assessment terms; calculating a corresponding coverage efficiency factor and a corresponding prompt efficiency factor according to the minimum number of words that needs to be entered to cover each of the assessment terms, and calculating a coverage rate of each of the assessment terms according to the coverage efficiency factor and the prompt efficiency factor; and performing weighted averaging calculation on the coverage rate of each of the assessment terms, to obtain a coverage rate of the assessment target.

Abstract: An authentication device is provided that authenticates an electronic device based on the responses from distinct types of physically unclonable functions. The authentication device receives a device identifier associated with the electronic device. It then sends one or more challenges to the electronic device. In response, the authentication device receives one or more responses from the electronic device, the one or more responses including characteristic information generated from two or more distinct types of physically unclonable functions in the electronic device.

Abstract: Techniques for operating a computer system for a vehicle are provided. An example method according to these techniques includes observing usage of at least one component of the computer system by an application to generate an application usage log for the application, deriving behavior vectors from the application usage log, determining whether the application is a distracting application by comparing the behavior vectors to one or more application safety rules, and limiting execution of the application responsive to determining that the application is a distracting application and based on status information associated with the vehicle.

Abstract: Technologies for updating a processing device, where a first device image is stored in a first (non-volatile) memory. When a new second device image is received via a communication interface, a first boot of the device is performed and a boot loader performs security processing on the second device image. Once security processing has passed, the second device image is set as a trial image and executed. The executed image is monitored to determine if predetermined operational parameters in the device are met. If the parameters are met, the second device image is set as a current image and the first device image is deactivated. A second boot is performed to make the new image operational for the device and the anti-rollback version one-time programmable fuses are blown. If the parameters are not met, the device revers to the first device image.

Abstract: Disclosed is an apparatus and method to securely activate or revoke a key. For example, the apparatus may comprise: a storage device to store a plurality of pre-stored keys; a communication interface to receive an activate key command and a certificate associated with one of the pre-stored keys; and a processor. The processor may be coupled to the storage device and the communication interface and may be configured to: implement the activate key command to reboot the apparatus with the pre-stored key and the certificate; and determine if the reboot is successful.

Abstract: One feature pertains to generating a unique identifier for an electronic device by combining static random access memory (SRAM) PUFs and circuit delay based PUFs (e.g., ring oscillator (RO) PUFs, arbiter PUFs, etc.). The circuit delay based PUFs may be used to conceal either a challenge to, and/or response from, the SRAM PUFs, thereby inhibiting an attacker from being able to clone a memory device's response.