Abstract: The present disclosure relates to a compact antenna system within a dielectric housing of an electronic device, capable of achieving improved reflection performance. The antenna system includes a ground plane and an antenna PCB. An antenna microstrip feed on a side of the antenna PCB comprises a first part of a radiating antenna element. The antenna PCB is connected to the ground plane by a central conductor of a coaxial cable which forms a ground path. An outer conductor of the coaxial cable carries RF signals to the antenna PCB, allowing the RF signals to freely radiate along a length of the coaxial cable and acting as a second part of the radiating antenna element. The coaxial cable does not interfere with, and can even enhance a radiation pattern of the antenna microstrip feed.

Abstract: A method includes providing a simulation environment that simulates a vehicle. The method includes providing the vehicular lane centering algorithm to the simulation environment, generating a base scenario for the vehicular lane centering algorithm for use by the simulated vehicle, and extracting, from the simulation environment, traffic lane information. The method also includes measuring performance of the vehicular lane centering algorithm during the base scenario using the extracted traffic lane information and generating a plurality of modified scenarios derived from the base scenario. Each modified scenario of the plurality of modified scenarios adjusts at least one parameter of the base scenario. The method also includes measuring performance of the vehicular lane centering algorithm during the plurality of modified scenarios using the extracted traffic lane information.

Abstract: A counterfactual context-aware texture learning network system, including: a camera configured to capture an input image; a processor configured to perform camouflaged object detection on the input image; and a memory configured to store a texture-aware refinement module (TRM), a context-aware fused module (CFM), and a counterfactual intervention module (CIM); wherein the processor is configured to execute program instructions of the TRM, the CFM, and the CIM; the TRM is configured to extract dimension features from the input image; the CFM is configured to infuse multi-scale contextual features; the CIM is configured to identify a camouflaged object with counterfactual intervention via the processor; the TRM includes: a receptive field block (RFB) configured to expand a receptive field and extract texture features; and a position attention module (PAM) and a channel attention module (CAM) configured to further refine texture-aware features and obtain discriminant feature representation.

Abstract: A nut, an electronic expansion valve, a stop structure of the electronic expansion valve, and a refrigeration device are provided. The nut has a pipe body and a connection seat. An outer peripheral wall of a first end of the pipe body is provided with a limiting snap protrusion. The connection seat is connected to the first end of the pipe body. A first avoidance interval is provided between the limiting snap protrusion and the connection seat for installing a first stop of the spring guide rail.

Abstract: Embodiments of this application provides an operating system data update method, a device, a storage medium, and a computer program product. The method is applied to an electronic device. After starting, the electronic device loads data from a basic partition, a first static partition, and a dynamic partition to run a first operating system. After the first operating system runs, the method includes: obtaining a patch package based on the version number of the first operating system; updating data in the second static partition based on the patch package, after confirming the data of the first static partition is consistent with the data of the second static partition; modifying a startup sequence of the electronic device from starting from the first static partition to starting from the second static partition; restarting the electronic device.

Abstract: Disclosed are a manufacturing method for a laser chip and a laser chip. The manufacturing method comprises: step S1, forming a first electroplating substrate on an epitaxial layer; step S2, forming an organic pattern layer on the first electroplating substrate, wherein the pattern layer defines a hollowed-out area and a part of the first electroplating substrate is exposed to the pattern layer by means of the hollowed-out area; step S3, forming a first metal coating on the first electroplating substrate, wherein the first metal coating completely covers the pattern layer and the part of the first electroplating substrate not covered by the pattern layer; and step S4, removing the pattern layer to have a hollow channel formed between the first metal coating and the first electroplating substrate, wherein the channel is provided with at least one inlet and at least one outlet running through the first metal coating.

Abstract: A gas-fired steam-injection boiler has a flue and a water supply pipeline. The flue is provided with a radiation section and a convection section. The water supply pipeline has, in the flue gas flow direction, a first pipe section located at an upstream portion of the convection section, a second pipe section is located at a downstream portion of the convection section, and a third pipe section arranged between the first pipe section and the second pipe section. In a water flow direction of the water supply pipeline, the second pipe section, the first pipe section and the third pipe section are arranged in sequence. By using a flue gas condenser, the temperature of flue gas can be further reduced, and the latent heat of vaporization of steam in the flue gas is absorbed to form condensate water.

Abstract: A camera lens is provided, including: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens; a fourth lens; a fifth lens; a sixth lens having a positive refractive power; and a seventh lens having a negative refractive power. A total effective focal length f of the camera lens, a half ImgH of a diagonal length of an effective pixel region on an imaging plane of the camera lens, and a distance TTL from an object side surface of the first lens to the imaging plane of the camera lens on the optical axis may satisfy: ImgH2/(TTL×f)?0.8. The total effective focal length f, a radius of curvature R9 of an object side surface of the fifth lens and a radius of curvature R10 of an image side surface of the fifth lens may satisfy: 1.9?f/R9+f/R10<3.0.

Abstract: A camera module, comprising a shell, a fixing bracket, a lens, a first driving assembly, a second driving assembly, and an image sensor assembly. The fixing bracket includes a first fixing portion and a second fixing portion. The first driving assembly is connected to a side of the first fixing portion facing the bottom of the shell. The first driving assembly includes a fixed member fixed to a bottom surface of the first fixing portion, a driving member connected to an image sensor assembly, and at least two shape memory alloy wires connected between the fixed member and the driving member and located on different sides of the first driving assembly. The shape memory alloy wires drive the image sensor assembly to move by extension and retraction.

Abstract: A setting method of in-memory computing simulator is presented. It involves an in-memory computing device performing various test combinations of neural network models and datasets, recording the corresponding first estimation indices. A processing device then uses these test combinations to execute a simulator with adjustable settings and records the corresponding second estimation indices. The processing device calculates a correlation sum according to the first estimation indices and second estimation indices, and performs an optimal algorithm to search an optimal parameter in a setting space to maximize the correlation sum.

Abstract: A package structure is provided. The package structure includes a semiconductor chip and a first dielectric layer over the semiconductor chip and extending across opposite sidewalls of the semiconductor chip. The package structure also includes a conductive layer over the first dielectric layer, and the conductive layer has multiple first protruding portions extending into the first dielectric layer. The package structure further includes a second dielectric layer over the first dielectric layer and the conductive layer. The second dielectric layer has multiple second protruding portions extending into the first dielectric layer. Each of the first protruding portions and the second protruding portions is thinner than the first dielectric layer.

Abstract: A sputtering target includes a tubular backing tube which has an axis which is defined as an axial direction, and a plane in which a radial direction lies is perpendicular to the axial direction. A cylindrical target segment is arranged on the tubular backing tube extends along the axial direction through at least 90% of length of the cylindrical target segment. A bonding material is arranged between the tubular backing tube and the target segment. The sputtering target includes a stop member for a target segment adjacent to the stop member, the stop member is monolithically formed with and radially protruding along the tubular backing tube at an axial end region of the tubular backing tube and extending along a part of a circumference of the tubular backing tube. A circumferential sealing member is inserted between the stop member and the target segment to prevent leakage of the bonding material.

Abstract: Methods are disclosed for generating a sample map and processing a sample. In one arrangement, a method comprises measuring a position of a first mark in each of a plurality of field regions on sample. A first model is fitted to the measured positions of the first marks. The fitted first model represents positions of the field regions. The method comprises measuring positions of a plurality of second marks in one field region or in each of a plurality of field regions. A second model is fitted to the measured positions of the second marks. The fitted second model represents a shape of each field region. A sample map is output using the fitted first and second models.

Abstract: A basketball hoop with folding function, comprising a basket frame and a folding structure, the folding structure comprises a mounting plate, a folding plate, a rotating shaft, a torsion spring and a support rod; the folding plate comprises a backboard, and a first side board, the mounting plate comprises a fixed board and a second side board, and the rotating shaft passes through the first and second side board and rotating connected, the torsion spring is sleeved outside the rotating shaft, and comprises a first spring body, a second spring body, a toggle rod, a first spring torsion bar and a second spring torsion bar. Its advantage is that the basketball hoop can be folded and unfolded, which is convenient for use.

Abstract: A semiconductor laser and a fabrication method therefor. The method comprises: providing a heat sink motherboard, and cutting the heat sink motherboard to form a plurality of heat sink substrates (300) (S11); providing an epitaxial wafer (200) (S12); bonding the plurality of heat sink substrates (300) to the epitaxial wafer (200) in an array to form a plurality of gaps parallel to the direction of resonant cavities (210) and perpendicular to the direction of the resonant cavities (210) (S13); dividing the epitaxial wafer (200) along the gaps to obtain a plurality of laser chips (S14); and stacking the plurality of laser chips, and coating the plurality of stacked laser chips to form a plurality of semiconductor lasers (S15).

Abstract: A method for detecting and correcting cycle time includes multiple steps performed by a computing device, and these steps include: obtaining a video from a camera, obtaining a bounding box from an input device, inputting the bounding box and the video to a cycle time detection model to generate a preliminary report, wherein the bounding box is used to set a region of interest in the video, the preliminary report includes a plurality of candidate events, and each candidate event includes a start time and a candidate cycle time, receiving a revision label associated with at least one candidate event from the input device, and tuning a hyper-parameter of the cycle time detection model according to the revision label.

Abstract: The invention aims to provide a cylindrical lithium battery cap with a built-in BMS board and a cylindrical lithium battery with the cap, which have the characteristics of compact and reasonable structure, convenient manufacturing and miniaturization, and can minimize the effect of the need to install the BMS board resulting in smaller cell capacity.

Abstract: A method for preparing a hole transport layer of a perovskite solar cell, comprises S11, providing a conductive substrate; and S12: doping silver, gallium, selenium and sulfur with each other on the conductive substrate to obtain a hole transport layer. The present disclosure further provides a hole transport layer of a perovskite solar cell and a perovskite solar cell.