Abstract: A card edge connector with a latch non-removably retained to a housing so as to improve the connector's reliability. The housing has a slot elongated in a longitudinal direction and is configured to hold conductive elements. Each conductive element has a contact portion exposed in the slot configured for mating with an electronic component, and a tail portion extending out of the housing configured for surface mounting to another electronic component. The housing has an end portion at an end of the slot in the longitudinal direction. The latch is installed to and extends around three sides of the end portion of the housing. The latch has a first retention feature, and the end portion has a second retention feature. When the first retention feature fully engages the second retention feature, the latch cannot be removed from the housing in a non-destructive manner. The latch and the housing may be made of different materials for respective functions.

Abstract: Discloses method for predicting multiple acoustic scattering characteristics of underwater vehicle, including: constructing geometric model of underwater vehicle for subsequent acoustic simulation and computation; subdividing mesh model of underwater vehicle, specifically, performing mesh subdivision based on geometric model to divide underwater vehicle model into smaller units for numerical computation; accelerating physical acoustics simulation process with iterative algorithm; performing computation on scattered acoustic fields of different levels to acquire accurate simulation result for multiple scattering phenomenon of underwater vehicle; performing analysis to acquire acoustic characteristics of underwater vehicle in underwater environment, including time-domain echo and target strength of multiple acoustic scattering of underwater vehicle.

Abstract: Slim high-speed high-density electrical connectors. A connector includes a housing with a slot between side walls, and a terminal assembly disposed between the side walls. A side wall includes first and second grooves alternatively disposed. The terminal assembly includes terminals held by an assembly housing. The terminals include terminal pairs and signal terminals extending in the first and second grooves, respectively. Inner and outer shields are attached to opposite sides of the assembly housing and protrude into the assembly housing to contact the single terminals. The outer shield includes extensions at least partially overlapping the mating ends and contact tails of the terminal pairs, respectively. The inner shield is configured to provide inner shielding together with a ground layer of a card inserted in the slot. Such a configuration can satisfy the industry's high-speed and the high-density requirements, including those defined by standards such as PCIe Gen 6.

Abstract: A method for target detection based on spatial phase correlation analysis of acoustic vortices comprises the steps of generating a vortex-like excitation acoustic field, receiving the scattered acoustic pressure information after the incidence of the acoustic vortex, extracting the correlation coefficient between the spatial phase of the scattered acoustic field and the reference phase matrix, and predicting the presence, size, and spatial orientation of the target to achieve the target detection function. The method breaks through the diffraction limit to detect small targets and determine their spatial positions. Using acoustic vortices as information carriers, the method provides new ideas and technical solutions for the field of target detection.

Abstract: This application discloses a signal anti-interference method and an electronic device, and relates to the field of terminals. A system-on-chip (SoC) chip may obtain parameter information (for example, an amplitude of a radio frequency signal, a phase of the radio frequency signal, a waveform of the radio frequency signal and the like) of the radio frequency signal coupled on a mobile industry processor interface (MIPI) signal line. Based on the parameter information of the radio frequency signal, the SoC chip may generate a reverse signal of the radio frequency signal, where the reverse signal is the same as the radio frequency signal in amplitudes (which may also be referred to as amplitude values) and waveforms and opposite in phases. The SoC chip may superimpose the reverse signal with a signal transmitted by the MIPI signal line, to eliminate the radio frequency signal coupled on the MIPI signal line.

Abstract: A method for target detection based on spatial phase correlation analysis of acoustic vortices comprises the steps of generating a vortex-like excitation acoustic field, receiving the scattered acoustic pressure information after the incidence of the acoustic vortex, extracting the correlation coefficient between the spatial phase of the scattered acoustic field and the reference phase matrix, and predicting the presence, size, and spatial orientation of the target to achieve the target detection function. The method breaks through the diffraction limit to detect small targets and determine their spatial positions. Using acoustic vortices as information carriers, the method provides new ideas and technical solutions for the field of target detection.

Abstract: This application relates to the technical field of electronic devices, and provides a camera module and an electronic device, to resolve problems that a camera module is easily disturbed, shooting performance of the electronic device is reduced, and a shooting effect is affected. The foregoing camera module is applied to the electronic device, which includes a lens, a camera circuit board, and a ground member. The camera circuit board is fixed to the lens. The ground member is arranged on the camera circuit board and electrically connected to the camera circuit board. The ground member is electrically connected to a ground terminal of a circuit board of the electronic device.

Abstract: A card edge connector for transmitting signal and power simultaneously. The connector has two or more types of conductors held by a housing. First and second types of conductors are configured for transmitting signal and power, respectively. The housing has a slot for receiving a mating component. The housing has first and second types of grooves for holding the first and second types of conductors, respectively, such that the conductors can sustain a similar amount of force generated when mating with the mating component. The conductors have mating ends with contact portions curving into the slot and mounting ends opposite the mating ends and extending out of the housing. The mating and mounting ends of the first and second types of conductors are configured such that they can be deflected by the mating component simultaneously and mounted to a printed circuit board using a same process.

Abstract: A display panel and a display device are provided. The display panel includes: a primary contour defining an active display region and including first portions extending non-linearly, a secondary contour inside the primary contour and including second portions extending non-linearly; the primary contour is an outer contour after the display panel is lightened; pixels in the active display region include pixels of first type inside the secondary contour, pixels of second type intersecting the second portion, and pixels of third type intersecting the first portion and outside the secondary contour; an aperture ratio of pixels of third type is smaller than that of pixels of first type, an aperture ratio of at least part of pixels of second type is positively correlated with an area of a part, inside the secondary contour, of each pixel of second type.

Abstract: In implementations of systems and procedures for item condition verification, a computing device implements an item condition verification system to compare a marketed condition of an item from an item listing with a delivered condition of the item using one or more machine learning models. Based on the comparison, the item condition verification system outputs a result indicating whether the item is significantly not as described by the item listing.

Abstract: An ibuprofen controlled-release tablet and a method for preparing same are provided. The controlled-release tablet is composed of a drug-containing immediate-release layer and a drug-containing sustained-release layer, wherein a mass of ibuprofen in the drug-containing sustained-release layer is greater than a mass of ibuprofen in the drug-containing immediate-release layer, and a ratio of the mass of the ibuprofen in the drug-containing sustained-release layer to the mass of the ibuprofen in the drug-containing immediate-release layer is ?7. The tablet of the present disclosure has an effective analgesic effect for 24 h after administration.

Abstract: A touch display substrate and a display device. The touch display substrate comprises: a plurality of sub-pixel units (10), data lines (20) and touch signal lines (30). With regard to every two adjacent rows of the sub-pixel units, a sub-pixel unit (10) in one row is staggered, at a distance of X sub-pixel units (10) along the row direction, from an adjacent sub-pixel unit (10) located in another row, where 0<X<1; the two sub-pixel units (10) having different colors. Both the data lines (20) and the touch signal lines (30) are provided at spaces extending between the sub-pixel units (10) in the column direction. The touch signal lines (30) and the data lines (20) are provided on the same layer and are insulated from each other. The invention can simplify the process and avoid short circuit of the touch signal lines (30) and the data lines (20).

Abstract: A UI service loading method is applied to a loading apparatus. One example method includes: receiving a loading request including a reuse path of a to-be-loaded UI service, where the loading request requests to load the to-be-loaded UI service; determining a dependency of the to-be-loaded UI service based on a dependency graph; and loading the to-be-loaded UI service and the dependency of the to-be-loaded UI service, where the reuse path of the to-be-loaded UI service indicates an access path of the to-be-loaded UI service, and the dependency graph indicates a dependency of at least one UI service in at least one UI service package, and indicates a UI service that references a UI service in the at least one UI service package as a dependency.

Abstract: This application discloses a signal anti-interference method and an electronic device, and relates to the field of terminals. A system-on-chip (SoC) chip may obtain parameter information (for example, an amplitude of a radio frequency signal, a phase of the radio frequency signal, a waveform of the radio frequency signal and the like) of the radio frequency signal coupled on a mobile industry processor interface (MIPI) signal line. Based on the parameter information of the radio frequency signal, the SoC chip may generate a reverse signal of the radio frequency signal, where the reverse signal is the same as the radio frequency signal in amplitudes (which may also be referred to as amplitude values) and waveforms and opposite in phases. The SoC chip may superimpose the reverse signal with a signal transmitted by the MIPI signal line, to eliminate the radio frequency signal coupled on the MIPI signal line.

Abstract: A card edge connector for high bandwidth transmission. The connector may include a housing having a groove between two walls. The walls may include slots holding terminals of the connector. The terminals of the connector may each include a mating contact portion, a mounting contact portion opposite the mating contact portion, a bearing portion extending from the mounting contact portion and fixed in the housing, and a beam extending from the bearing portion. The beams may be configured to flex when the mating contact portions make contact with pads on a card. The terminals may each include a curved transition portion between the mating contact portion and the beam so as to prevent the beam from touching the card. The housing may include holes through the walls between mating contact portions of selected adjacent terminals. Such a configuration reduces impedance mismatch at the mating interface and therefore improve signal integrity.

Abstract: A compact high-speed electrical connector and electronic system thereof. The connecter comprises first, second, and third mating interfaces configured to receive one or more cards, and a mounting interface configured to mount to a substrate. The first, second, and third mating interfaces extend in columns parallel to each other and perpendicular to a mating direction. The first, second, and third mating interfaces offset from each other in a mating direction. The mounting interface extends in the mating direction. Such a configuration enables direction interconnections between three components that support hybrid functions such as high-speed signals, power, and/or side bands, while satisfying a limited space provided by an electronic system.

Abstract: Disclosed are a tricyclic derivative and a preparation method therefor and an application thereof. Specifically, disclosed are a compound shown in formula (I) and an optical isomer thereof or a pharmaceutically acceptable salt thereof, and an application of the compound as an Autotaxin inhibitor.

Abstract: The present application is applicable to a field of computer application technology, and provides a software upgrade method, device and electronic device. The method includes: after receiving an upgrade request sent by a service platform, sending an upgrade query instruction to a transaction terminal; receiving a query result fed back by the transaction terminal, the query result being generated by executing the upgrade query instruction on the transaction terminal using a software tool development kit integrated in the software to be upgraded; and determining whether to upgrade the software to be upgraded in the transaction terminal according to the query result. Through the present application, a problem of data loss or software crash when upgrading software during a transaction can be solved, and the reliability and flexibility of software upgrades can be improved.

Abstract: A method for creating a configuration knowledge base, includes: determining a hierarchical structure between a plurality of modules in a product family based on the plurality of modules; determining a knowledge package of each module based on the hierarchical structure; and releasing the knowledge package of each module in the product family to a configuration knowledge base, to obtain a configuration knowledge base of the product family. The hierarchical structure indicates a hierarchical relationship between a parent module and a child module in the plurality of modules. Each parent module includes one or more child modules. A knowledge package of the parent module includes an input interface algorithm of the child module associated with the parent module.

Abstract: A frequency-adjustable water dripping device. The water dripping device includes a U-shaped magnetic conductive cup, a printed circuit board (PCB), a magnetic field generating device, a water containing cavity, and a water outlet, where the U-shaped magnetic conductive cup is connected to the magnetic field generating device, and the magnetic field generating device is connected to the PCB. When alternating current signals with different frequencies are input into the PCB and sent to the magnetic field generating device, a volume of the water containing cavity is changed by means of a magnetic field generated by the magnetic field generating device, such that different water dripping effects are generated. According to the frequency-adjustable water dripping device, the volume of the water containing cavity is changed by means of the generated magnetic field, such that different water dripping effects are generated.