Abstract: Disclosed is a control method for a hydrogen-fueled domestic gas water heater. A staged combustion technology and a fully premixed combustion technology are combined in the method, a controller judges a combustion mode according to inlet water flow and set hot water input temperature, staged combustion of the hydrogen on a combustor is achieved due to the arrangement of two electromagnetic valves and the staged combustor, and meanwhile the stable combustion of the hydrogen can be achieved by adjusting a rotating speed of a fan and magnitude of currents of a gas proportional valve; and an oxygen sensor is arranged on a exhaust pipe, and the controller judges whether actual hydrogen combustion reaches an optimal state by monitoring outlet water temperature and oxygen concentration in flue gas and performs adjustment.

Abstract: A positive electrode active material, a method for preparation thereof and a positive electrode plate, a secondary battery and an electrical device containing the same are provided. The positive electrode active material has a core-shell structure, comprising a core, a first cladding layer covering the core, a second cladding layer covering the first cladding layer, wherein the core has a chemical formula of LiaAxMn1-yByP1-zCzO4-nDn, the first cladding layer comprises a first polymer containing an electron withdrawing group, the second cladding layer comprises a second polymer, and wherein the second polymer comprises one or more of plant polysaccharides, marine polysaccharides and the derivatives thereof. The positive electrode active material of the present application enables a secondary battery to have a relatively high energy density, while further having a significantly improved rate performance, cycling performance and/or high-temperature stability.

Abstract: A signal transmission method includes receiving a first positioning reference signal (PRS) resource set, receiving a second PRS resource set, and determining that N first PRS resources in the first PRS resource set and N second PRS resources in the second PRS resource set satisfy a quasi-colocation (QCL) relationship, where N is an integer greater than or equal to 1.

Abstract: A power supply circuit, a driving chip and a display apparatus. The power supply circuit comprises: a reference current generation circuit (101), which is configured to generate a reference current; a driving circuit (302), which is connected to the reference current generation circuit (101) and is configured to generate, according to the reference current, a mirror image current with an adjustable mirror image proportion, and output a bias voltage and a gate driving voltage; and a channel current output circuit (303), which is connected to the driving circuit (302) and is configured to receive the bias voltage and the gate driving voltage, and generate, according to the mirror image current, a channel current with an adjustable mirror image proportion. Since a mirror image proportion is adjustable, the current precision can be improved, and when a relatively large output current is required, a mirror image current can remain relatively small, thereby reducing power consumption.

Abstract: The present embodiments provide for a Mycobacterium tuberculosis (M. tuberculosis) Multiple Antigen Presenting System (MAPS) immunogenic composition comprising an immunogenic polysaccharide which induces an immune response, where at least one M. tuberculosis peptide or polypeptide antigen is associated to the immunogenic polysaccharide by complementary affinity molecules. In some embodiments, the immunogenic polysaccharide can be an antigenic capsular polysaccharide of a Mycobacterium tuberculosis, Type 5 (CP5) or Type 8 (CP8), or a combination of Type 5 or Type 8 capsular polysaccharide from Staphylococcus aureus, or alternatively, a different immunogenic capsular or noncapsular polysaccharide, and where the protein or peptide M. tuberculosis antigens are indirectly linked via an affinity binding pair. The present M. tuberculosis-MAPS immunogenic compositions can elicit both humoral and cellular immune responses to the immunogenic polysaccharide and one or multiple M. tuberculosis antigens at the same time.

Abstract: Discloses herein is an electronic stethoscope, including a connector, wherein a membrane type auscultation head is in threaded connection with one end of the connector, a piezoelectric sheet is fixedly mounted in the membrane type auscultation head, a grip is in threaded connection with the other end of the connector, a circuit board is clamped in the grip, the circuit board is electrically connected to the membrane type auscultation head, a storage battery is electrically connected to one side of the circuit board, the storage battery is clamped in the grip, a microswitch and a loudspeaker are mounted on the other side of the circuit board in an electrically connected manner, a main silicone key body is clamped in the grip, and the main silicone key body is attached to the microswitch.

Abstract: Provided are a positive electrode active material, a method for the preparation thereof and a positive electrode plate, a secondary battery and an electrical device containing the same. The positive electrode active material has a core-shell structure, comprising a core and a shell cladding the core, wherein the core has a chemical formula of Li1+xMn1-yAyP1-zRzO4, the shell comprises a first cladding layer cladding the core, a second cladding layer cladding the first cladding layer, a third cladding layer cladding the second cladding layer and a fourth cladding layer cladding the third cladding layer. The positive electrode active material of the present application enables the secondary battery to have a relatively high energy density, and good cycling performance, rate performance and safety performance.

Abstract: A processing device receives an image and calculates a sharpness metric for a region of interest of the image. The processing device determines whether the sharpness metric satisfies a sharpness criterion, and one or more additional operations are performed responsive to determining that the sharpness metric satisfies the sharpness criterion.

Abstract: The present application is generally directed to novel pneumococcal polypeptide antigens and nucleic acids encoding such antigens, and immunogenic compositions comprising such antigens for treating and preventing pneumococcal infection. The present invention further provides method of using the antigens to elicits an immune response (e.g., IL-17A response, a T cell-mediated and/or B-cell-mediated immune responses). The present invention also provides methods of prophylaxis and/or treatment of pneumococcal-mediated diseases, such as sepsis, comprising administering an immunogenic composition including one or more of a combination of pneumococcal antigens or functional fragments thereof as disclosed herein. In some embodiments, one or more pneumococcal antigens can be present in a polysaccharide conjugate. The compositions induce an anti-pneumococcus immune response when administered to a mammal.

Abstract: An AGV tool for entertainment and transportation includes a cabin, an AGV base, and a connection component connecting the cabin and the AGV base. The connection component includes a supporting component, a driving component, an upper installation component and a lower installation component. The driving component is fixedly connected to the supporting component. The supporting component includes two supporting arms and a supporting plate. The two supporting arms are arranged at two sides of the supporting plate. One end of each supporting arm is connected to one end of the supporting plate at a preset angle. The upper installation component is connected to another end of the supporting plate and configured to fixedly connect the cabin. The lower installation component is connected to the driving component and configured to fixedly connect to a supporting surface of the AGV base.

Abstract: Disclosed is a one component, liquid, moisture curable polyurethane adhesive composition comprising the reaction products of a mixture including at least one polyol with an excess of one or more polyisocyanates and an acid component. In one embodiment some or all of the acid component is applied separately from the adhesive composition. The adhesive composition has enhanced bond strength to metals such as aluminum compared to currently available adhesives. The composition finds special use in panel lamination applications.

Abstract: A mobile device comprises a display, an image capture device that generates image data of a face of a viewer of the display, and a processing device. The processing device receives the image data and sends the image data to a computing device. The computing device processes the image data to identify a position of a dental arch in the image data; determines a treatment outcome for the dental arch; generates a post-treatment image of the dental arch that shows the treatment outcome; generates updated image data comprising a superimposition of the post-treatment image of the dental arch over the received image data; and sends the updated image data to the mobile device. The mobile device outputs the updated image data to the display, wherein the post-treatment image of the dental arch is superimposed over the dental arch in the received image data such that the post-treatment image is visible in the display rather than a true depiction of the dental arch.

Abstract: The present disclosure relates to a page presentation method, a display system, and a storage medium. The method includes: presenting, on a page, a map comprising one or more virtual objects used to identify one or more corresponding electronic signs; and binding a sign content to be presented to the electronic signs corresponding to the one or more virtual objects.

Abstract: An unmanned device control method and apparatus, a storage medium, and an electronic device. An unmanned device is controlled to move according to a preplanned target path; current environment information of the unmanned device is obtained; according to the current environment information of the unmanned device, a target subpath on which the unmanned device is located is determined, from target subpaths included in the target path, as a designated subpath; and a control strategy is then determined according to a scenario type corresponding to the designated subpath, and a determined control strategy is used to control the unmanned device.

Abstract: An information configuration method and apparatus, the method including receiving first configuration information, where the first configuration information includes configuration information of a time-frequency resource to which a positioning reference signal (PRS) is mapped and configuration information of a time-frequency resource to which a synchronization signal/physical broadcast channel (SS/PBCH) block is mapped, determining, based on the first configuration information, the time-frequency resource to which the PRS is mapped and the time-frequency resource to which the SS/PBCH block is mapped, and skipping receiving, when the time-frequency resource to which the SS/PBCH block is mapped overlaps the time-frequency resource to which the PRS is mapped, the PRS on the overlapped time-frequency resource.

Abstract: A method for performing detection-based object searches includes receiving a user request indicating a region of interest, a timeframe of interest, or an object of interest. A signal is sent to cause execution of a query to identify object detections based on the user request. A signal representing at least one event identified in response to the query is received. For each event from the at least one event, a thumbnail image is identified based on the user request and using a ranking algorithm. A video frame identified based on the thumbnail image is received, and a video segment associated with the video frame is retrieved, A preview image clip that includes the video frame and the video segment is generated and displayed to a user associated with the user request.

Abstract: A site recommendation method, an electronic device, and a readable storage medium are provided, which relate to the field of automatic driving. The method includes: determining, in response to a query request of a user terminal for a target position, a target site recommended to a target user within a specified range of the target position, wherein the target site includes a site that the target user is interested in under a specified travel condition; and sending the target site to the user terminal.

Abstract: A heterogeneous image registration method includes: performing edge detection on collected images, in combination with a curvature scale space strategy to extract contour curved segments in an edge image. Implementing a feature point detection strategy based on global and local curvature detecting feature points in the contour curved segments, and obtaining the nearest minimum local curvature of the feature points pointing to starting and end points of the contour, respectively. Calculating the number of neighborhood sampling points and neighborhood auxiliary feature points of neighborhoods on both edges of each of the feature points according to the nearest minimum local curvature. Using neighborhood auxiliary feature points and feature points to form a feature triangle, calculating an angle bisector vector and a main direction corresponding to the feature point in the feature triangle.