Abstract: Various implementations disclosed herein include devices, systems, and methods that present content items (e.g., movies, TV shows, home-made videos, etc.) on electronic devices such as HMDs. Some implementations adjust what is being displayed by the electronic devices to mitigate optical module-based artifacts (e.g., ghosting). For example, in an HMD with a catadioptric lens, a mirror layer may leak some light to produce ghosting artifacts that may be mitigated by adjusting brightness, dynamic range, contrast, light-spill, color, etc. Some implementations utilize adjustments that are based on content item awareness (e.g., adjustments based on the peak brightness of the scene in a movie that is being displayed within an extended reality (XR) environment, etc.). Some implementations provide adjustments based on environment awareness (e.g., how dark is the surroundings or pass-through environment) and/or optical module modeling.

Abstract: Provided are a method, an apparatus, and a system for risk assessment of an insulation state of electrical equipment and a storage medium. The method includes measuring partial discharge data of electrical equipment using multiple types of sensors, and performing clustering of discharge types; establishing, based on a clustering result of each discharge type, a regression model between sensor response amplitude and apparent discharge energy during a discharge development process; calculating, based on the regression model, the accumulated value of apparent discharge energy of current partial discharge of the electrical equipment, and using the accumulated value as an index of risk assessment to assess an insulation state of the electrical equipment.

Abstract: A method for preparing high-density magnesia-alumina spinel ceramic by low-temperature pressureless sintering, comprises: using MgAl2O4 powder as a raw material powder, adding calcium phosphate as a sintering aid and controlling the calcium element of the calcium phosphate to not exceed 500 ppm of the total mass of the raw material powder; and then performing pressureless sintering, thereby preparing a high-density magnesia-alumina spinel ceramic; the pressureless sintering includes normal pressure sintering or vacuum sintering.

Abstract: An STL model slicing method includes: reading and loading an STL model; obtaining a first slice plane; according to a first set thickness, making the first slice plane be horizontally tangential to an STL model to obtain a first profile curve, which is a profile curve of a tangent plane of the STL model and the first slice plane; determining whether the profile curve contains a physical portion of the STL model; if the profile curve contains the physical portion of the STL model, filling the physical portion with white to obtain a white portion; determining a non-physical portion in the profile curve according to the physical portion; filling the non-physical portion with black to form a mask of the tangent plane; and projecting the mask onto a liquid photosensitive resin by means of a first 3D printer, and then curing the white portion to be a first cured profile.

Abstract: The present invention relates to a candle which includes a base unit and a candle body which is mounted to the base unit. The candle body includes a wick and a fibre optic running therethrough. The base unit includes a light sensor configured to detect light from the wick, when lit. There is additionally provided a light source configured to operate in dependence on detection of light by the light sensor.

Abstract: The present disclosure provides a display substrate, a manufacturing method thereof, an intermediate substrate and an electronic paper display apparatus. The display substrate includes: a base substrate including a display region and a bezel region on at least one side of the display region; a plurality of test sub-terminals in the bezel region, including a common voltage test sub-terminal and a plurality of non-common voltage test sub-terminals; and a first electrostatic ring in the bezel region, through which the plurality of non-common voltage test sub-terminals are arranged in series and/or grounded.

Abstract: A method and apparatus for accessing a random access channel (RACH) during handover are disclosed. A handover procedure is initiated and a maximum handover interruption timer is activated. A dedicated preamble is transmitted in an attempt to access the RACH on a condition that the dedicated preamble is reserved in a current random access opportunity and the maximum handover interruption timer has not expired. A contention-based preamble is transmitted in an attempt to access the RACH on a condition that a dedicated preamble is not reserved in a current random access opportunity. If the maximum handover interruption timer has expired, a contention-based preamble is transmitted in an attempt to access the RACH.

Abstract: The disclosure discloses a point-of-interest recommendation method based on a temporal knowledge graph. Based on the historical behavior trajectory of the user and multimodal information, the disclosure constructs a dynamic temporal knowledge graph and a static group knowledge graph, which are used to learn interest preferences of the user that change over time and stable features that do not change over time, respectively. At the same time, the disclosure uses deep learning methods to build a point-of-interest recommendation model, which can extract a point-of-interest fusion feature representation and a user fusion feature representation from the two knowledge graphs in combination with a user review sentiment embedding sequence to accurately predict a point of interest most likely to be visited by the target user at a next moment. The disclosure has the characteristics of high precision and strong scalability, and can provide support for personalized user behavior trajectory prediction.

Abstract: Provided is a display module. The display module includes: a backplane, a middle frame, a backlight module, and a display panel; wherein the backlight module and the display panel are sequentially laminated on the backplane; the middle frame includes a first frame body and a bearing structure, wherein the first frame body surrounds the backlight module, the bearing structure is disposed on the first frame body and extends in a direction towards a center of the backlight module, and the backlight module and the display panel are respectively disposed on two faces of the bearing structure; and the backlight module includes a light guide plate, and the display module has a view angle greater than or equal to 45° on at least one side of the display module.

Abstract: Provided is a long moving distance electric pedal and vehicle. The electric pedal comprises a pedal body, a first mounting bracket, a second mounting bracket, a driving device, and two sets of transmission components; the transmission components include a first pivot plate and a second pivot plate, one end of which are hinged with the first or second mounting bracket, and the other end of which are hinged with one or the other end of the pedal body; when the pedal body is in a retracted state, the angle between the center lines of the first and second pivot plate is an acute angle, and the intersection point between the center lines of the first and second pivot plate is located above the connection point between the driving device and the transmission components. According to the above structure, a longer Y-axis travelling can be achieved with a smaller swing angle.

Abstract: Provided are a digital twinning method and system for a scene flow based on a dynamic trajectory flow, which belong to the field of traffic control. The method includes: extracting and identifying a target semantic trajectory with a detecting and tracking integrated multi-modal fusion and perception enhancement network; extracting road traffic semantics, so as to obtain a highly parameterized virtual road layout top view; obtaining a road layout traffic semantic grid encoding vector based on the virtual road layout top view; constructing a target coupling relation model; constructing a traffic force constraint model; constructing a long short term memory trajectory prediction network; predicting a motion trajectory of a target with the long short term memory trajectory prediction network, so as to obtain the predicted motion trajectory; and obtaining a digital twin of the scene flow based on trajectory extraction, semantic identification and the predicted motion trajectory.

Abstract: A directional coupler includes a primary transmission line electrically coupled in series between an input port and an output port of the coupler, and an asymmetric, meander-shaped, secondary transmission line, which is electrically coupled in series between a coupling port and an isolation port of the coupler. The secondary transmission line includes a first coupling segment, which is reactively coupled to a first portion of the primary transmission line, and a second coupling segment, which is reactively coupled to a second portion of the primary transmission line, and is spaced closer to, or farther from, the primary transmission line relative to the first coupling segment, such that an asymmetry in reactive coupling is present between the first and second portions of the primary transmission line and the secondary transmission line. An intermediate segment is provided, which is electrically coupled in series between the first and second coupling segments.

Abstract: A deep learning-based method for predicting the settleability of activated sludge includes: (1) collecting a plurality of activated sludge samples, acquiring raw data of images of the plurality of activated sludge samples, cleaning the raw data of the images, and standardizing data sizes of the images; (2) calculating a sludge volume index (SVI) for each of the plurality of activated sludge samples; (3) establishing, by using a ResNet50 deep neural network, a model for predicting the settleability of activated sludge; and (4) predicting the settleability of a target activated sludge using the model established in (3).

Abstract: A system for providing contrast enhanced ultrasound (CEUS) images is described. The CEUS system includes an ultrasound probe adapted to provide the ultrasound images; a processor configured to determine out-of-plane frames of the ultrasound images, and remove the out-of-plane frames from the ultrasound images based on a criterion to provide an optimized set of frames; and a display in communication with the processor and configured to display the optimized set of frames.

Abstract: A method for dynamically adjusting a proxy server timeout includes identifying each microservice within a proxy server and mapping a topology of microservices, assigning each microservice to one of an application layer, a middleware layer and an infrastructure layer. Defining each representational state transfer (REST) application programming interface (API) calling relationship between each microservice and each other microservice. Determining a corresponding regression model defining a response time of each microservice based at least in part on a set of available response time predictors. Building a sequence model for at least one microservice in the application layer. Predicting an incoming REST API call and identifying a probable sequence model corresponding to the predicted incoming REST API call. Updating a timeout value of the predicted REST API call within the proxy server based on the sequentially predicted response times.

Abstract: A light emitting substrate is provided. The light emitting substrate includes a light source; a first light modulation layer having a first micro structure on a side closer to the light source; and a second light modulation layer having a second micro structure on a side away from the light source.

Abstract: Disclosed is a fully immersed energy storage device, which includes a casing and a water pump. An insulation box is mounted inside the casing, and the insulation box is assembled with an assembly plate thereon. A mounting platform is mounted on the assembly plate and assembled with an annular rack. A rotating groove is provided between the mounting platform and the annular rack. Balls are placed in the rotating groove. The mounting platform is assembled with an assembly block, on which a rotating shaft is mounted. One end of the rotating shaft connects to a gear. The other end of the rotating shaft connects to a first assembly rod, to which a second assembly rod is connected. The second assembly rod connects to a fixed block, which is connected to an energy storage box. A motor base is mounted on the casing. A motor is mounted on the motor base.

Abstract: A capacitive wireless power transfer coupler, includes: a coupler transmitting side, including two electrode plates arranged in a same plane, a shielding plate parallel to the electrode plates, and a filling dielectric between each of the electrode plates and the shielding plate; a coupler receiving side, having a same structure as the coupler transmitting side. A side provided with the electrode plates of the coupler transmitting side faces a side provided with the electrode plates of the coupler receiving side, and power transfer is achieved between the two sides through a transfer dielectric, where a relative dielectric constant of the filling dielectric is less than a relative dielectric constant of the transfer dielectric. The issues of increased coupler volume, limited improvement in the capacitive coupling coefficient, and low efficiency of power transfer of the existing capacitive coupler, can be solved.

Abstract: A zero calibration method includes: adding, based on a first forward kinematics model of a robotic arm of a robot, zero deviations of each joint to form a second forward kinematics model, and simultaneously solving the second forward kinematics model and the first forward kinematics model to obtain an end deviation function; sending target end pose instructions to the robotic arm in a current zero point situation, and acquiring a spatial deviation of an actual position of an end; inputting position information of each joint angle and the spatial deviation, after each stop of motion of the end, into the end deviation function, and performing phase shifting to obtain an objective optimization function; and solving the objective optimization function to obtain a zero deviation value.