Abstract: An artificial intelligence-based semantic recognition method, apparatus, and device. In the artificial intelligence-based semantic recognition method, a pre-trained semantic recognition model is trained by using a training corpus configured by a developer on a model training platform such as a Bot platform and a negative corpus provided on the model training platform, where the negative corpus is extracted by mapping an encoding value of the training corpus to a negative corpus set. Therefore, the negative corpus is extracted based on the encoding value of the training corpus, and a randomized method for generating the negative corpus is changed into a stable method.

Abstract: A vacuum cleaner is provided for cleaning a surface. The vacuum cleaner includes a main body, a tool, a projection surface, and a projector. The tool has a connector end for connection to the main body and a cleaner end opposite the connector end. The projection surface is provided on the tool, for displaying projected information thereon. The projector is configured for casting a projection including the projected information onto the projection surface.

Abstract: A computer includes a processor and a memory storing instructions executable by the processor to receive data indicating that an electric vehicle is in an enclosed space; in response to receiving the data, instruct window actuators of the electric vehicle to open windows of the electric vehicle; and in response to receiving the data, instruct a heater of the electric vehicle to generate heat.

Abstract: A process for preparing polypropylene particles by using recyclable coffee grounds plant fibers includes the following preparation steps: S1) preparing raw materials; S2) processing the raw materials; S3) mixing the raw materials to obtain a mixture; and S4) performing mixing and extrusion granulation on the mixture. The raw materials in S1 include 35-40 parts of coffee grounds powder, 60-80 parts of polypropylene resin, 2-5 parts of compatibilizer, 4-8 parts of toughening agent, 1-3 parts of diffusing agent, 1-3 parts of maleic anhydride, 0.7-1.6 parts of anti-UV agent, 3-6 parts of antioxidant, and 1-2 parts of white oil. The present disclosure adopts coffee grounds for mixing preparation, the discarded coffee grounds can be reused, the prepared polypropylene particles contain fiber components, and the performance of a material is improved.

Abstract: A current signal segmentation algorithm is provided. The segmentation algorithm divides a current signal waveform into mutually different segments according to a physical feature thereof, extracts shape distribution, statistical and harmonic features of the segments, and calculates a similarity between a segment pair. The segmentation algorithm includes the following steps: segmenting a current signal to separate a standby current and an overshoot current, only leaving a working current; extracting a shape distribution feature of a working current segment; extracting a statistical feature of the working current segment; extracting a harmonic feature of the working current segment; calculating a similarity between a segment pair; and deriving a maximum clique set in a similarity graph through a maximum clique search algorithm as a class from automatic segmentation.

Abstract: An imaging system including visible-light camera(s), pose-tracking means, and processor(s). The processor(s) is/are configured to: control visible-light camera(s) to capture visible-light image, whilst processing pose-tracking data to determine pose of camera(s); obtain three-dimensional model of real-world environment; create occlusion mask, using three-dimensional model; cull part of virtual object(s) to generate culled virtual object(s), wherein virtual object(s) is to be embedded at given position in visible-light image; detect whether width of culled part or remaining part of virtual object(s) is less than predefined percentage of total width of virtual object(s); if width of culled part is less than predefined percentage, determine new position and embed entirety of virtual object(s) at new position to generate extended-reality image; and if width of remaining part is less than predefined percentage, cull entirety of virtual object(s).

Abstract: A motorised outrigger stabilised watercraft comprising a main hull extending in a fore-aft direction, a single outrigger arranged to stabilise the main hull, extending substantially parallel to the main hull and spaced laterally from the main hull, and at least one hydrofoil located at or proximate the stern of the main hull.

Abstract: The invention provides a system for pyrolysis, comprising: (i) a gas producer comprising a gasification zone and a producer gas outlet, wherein the gas producer is configured to: oxidise at least one carbon-containing feed in the presence of an oxidising gas in the gasification zone to form a producer gas; and discharge the producer gas from the gasification zone via the producer gas outlet, wherein a residual oxygen content of the producer gas is substantially depleted or maintained below a maximum predetermined amount by controlling a ratio of oxygen fed to the gasification zone to the carbon-containing feed, (ii) a pyrolyzer comprising a pyrolysis zone and one or more pyrolyzer gas outlets, wherein the pyrolyzer is configured to: feed the producer gas discharged from the gasification zone to the pyrolysis zone; pyrolyze a pyrolyzable organic feed in the pyrolysis zone in the presence of the producer gas to produce a carbonaceous pyrolysis product and a gas mixture comprising combustible components comprisi

Abstract: An update service of a provider network transmits an update to an edge device by opportunistically selecting one communication channel (or transmission bandwidth) over another (e.g., based on analysis of performance metrics associated with the channel) to transmit different portions of the update to the edge device. For example, the update service may choose the channel with highest available bandwidth or the channel with the lowest failure rates. The update service may receive indications from the edge device that transmission of different update portions was successful. In some cases, the edge device itself may instead perform the selection of one communication channel over another (e.g., based on analysis of channel metrics) to receive different portions of the update at the edge device. The edge device may transmit indications that the edge device successfully received different portions of the update.

Abstract: A unilaterally driven closed-loop artificial pancreas, includes: a detection module, an infusion module and a program module. The infusion module includes a reservoir, a piston, a screw, a driving unit, a driving wheel provided with wheel teeth, at least one linear actuator and at least one reset unit. The driving unit includes at least one rotating shaft and at least one driving member. The driving member includes a driving end. The driving member rotates around the rotating shaft. The linear actuator and the reset unit respectively connect to the driving member. The program module is connected to the detection module and the infusion module respectively, imported the total daily dose algorithm and the current insulin infusion algorithm. The driving power can be controlled, and it can accurately calculate the TDD value and the current insulin infusion dose.

Abstract: An optical assembly to reduce glare and enhance sharpness in a head-mounted device (HMD) is provided. The optical assembly may include an optical stack, such as pancake optics. The optical assembly may also include at least two optical elements. The optical assembly may further include at least one liquid crystal (LC) layer between the at least two optical elements, wherein the liquid crystal (LC) layer provides dynamic glare reduction and enhanced sharpness using a controllable polarization technique. In some examples, the controllable polarization technique may include determining optical assembly orientation using a sensor. Based the optical assembly orientation, the polarization of the at least one liquid crystal (LC) layer may be dynamically adjusted via adjustments in applied voltage to minimize or reduce glare and enhance visual sharpness.

Abstract: A screen sharing privacy manager performs method in response to initiating a screen sharing session on a computer network, in which the screen sharing session is of a first desktop environment of an operating system. A second desktop environment is generated with the operating system. The second desktop environment inaccessible to the screen sharing session. A selected item in the first desktop environment is moved to the second desktop environment based on a user profile.

Abstract: The present invention discloses a method for automatic segmentation of a fuzzy boundary image based on active contour and deep learning. In the method, firstly, a fuzzy boundary image is segmented using a deep convolutional neural network model to obtain an initial segmentation result; then, a contour of a region inside the image segmented using the deep convolutional neural network model is used as an initialized contour and a contour constraint of an active contour model; and the active contour model drives, through image characteristics of a surrounding region of each contour point, the contour to move towards a target edge to derive an accurate segmentation line between a target region and other background regions.

Abstract: This application discloses a negative-electrode active material and a preparation method thereof, a secondary battery, and a battery module, a battery pack, and an apparatus that include such secondary battery. The negative-electrode active material includes a core and a coating layer covering at least part of a surface of the core, where the core includes artificial graphite, the coating layer includes amorphous carbon, a volume-based particle size distribution of the negative-electrode active material satisfies Dv99?24 ?m, a volume-based median particle size Dv50 of the negative-electrode active material satisfies 8 ?m?Dv?15 ?m, Dv99 is a particle size corresponding to a cumulative volume distribution percentage of the negative-electrode active material reaching 99%, and WO is a particle size corresponding to a cumulative volume distribution percentage of the negative-electrode active material reaching 50%.

Abstract: An image stitching method is proposed to include: A) acquiring a plurality of segment images for a target scene, each of the segment images containing a part of a target scene; B) for two adjacent segment images, which are two of the segment images that have overlapping fields of view, comparing the two adjacent segment images to determine a stitching position for the two adjacent segment images from a common part of the overlapping fields of view; and C) stitching the two adjacent images together based on the stitching position thus determined.

Abstract: A power delivery network, circuit, and method reduce die package resonance of an integrated circuit (IC) die. Decoupling capacitors interact with equivalent series inductances (ESLs) of power conductors within a package carrier substrate create the die package resonance characteristic. In one form an anti-resonance tuning circuit has a first branch including a first inductance coupled to one of an IC die positive power supply conductor and an IC die negative power supply conductor, and a second branch coupled directly to a selected one of a carrier substrate positive or negative conductive structures, the second branch comprising a second inductance inductively coupled to the first inductance.

Abstract: A releasable hinge assembly includes a mounting bracket, a hinge bracket, and at least one spring biased locking mechanism. The mounting bracket having a first mounting plate and two pin tabs extending therefrom, at least one of the pin tabs defining a through hole therein. The hinge bracket having a second mounting plate and a knuckle extending therefrom. The knuckle defining at least one cutout that is being L-shaped. The at least one spring biased locking mechanism having a pawl arm and a pin. The at least one locking mechanism positioned within the a channel of the hinge bracket with the pawl arm positioned within and projecting from the at least one cutout. The pawl arm configured to move within the at least one cutout to push the pin beyond a second end of the knuckle and through a through hole defined in the pin tab of the mounting bracket.

Abstract: The present concepts relate to devices that can approximate virtual objects when touched by a user. One example device can include a location assembly configured to sense a location of the device on a surface and configured to move the robotic device on the surface and a shape assembly secured to the location assembly and configured to adjust a height and a pitch of an upper surface of the robotic device.

Abstract: A liquid crystal display panel (100) comprises a first polarizer (110) and a second polarizer (170), a first liquid crystal layer (130) disposed between the first polarizer (110) and the second polarizer (170), and an optical compensation layer (140) disposed between the first liquid crystal layer (130) and one of the first polarizer (110) and the second polarizer (170). A transmission axis of the first polarizer (110) is perpendicular to a transmission axis of the second polarizer (170). The first liquid crystal layer (130) includes first liquid crystal molecules (130?).

Abstract: An optical module includes a shell, an elastic sleeve and a conductive fiber sheet. The shell has a groove disposed on an outer wall thereof. The elastic sleeve includes a metal frame and a plurality of metal elastic pieces. The metal frame is sleeved in the groove, and the metal frame is fixedly connected to the shell. The plurality of metal elastic pieces are disposed on an edge of the metal frame and extend to an outside of the metal frame. The conductive fiber sheet is disposed between the shell and the elastic sleeve for connecting the shell and the elastic sleeve.