Abstract: A device for managing a virtual memory is disclosed. The device includes: a host processor configured to, in response to a memory request from an accelerator, allocate to the accelerator, from among virtual address spaces, a virtual address of first virtual address subspaces reserved for the accelerator; and a host processor allocation device configured to, in response to a memory request from a host processor, allocate to the host processor, from among the virtual address spaces, a virtual address of second virtual address subspaces that are exclusive of the first virtual address subspaces.

Abstract: A point cloud decoding method related to the field of coding technologies and includes reconstructing a point cloud comprising one or more patches. The one or more patches comprise a current patch. The reconstructing process may include transforming coordinates (x2, y2) of a second point of the current patch in a second coordinate system to coordinates (x1, y1) of a first point of the current patch in a first coordinate system, where the coordinates (x1, y1) of the first point of the current patch in the first coordinate system may be obtained based on the coordinates (x2, y2) of the second point of the current patch in the second coordinate system and a transform matrix.

Abstract: A computer-implemented method, a system, and a computer program product for service delivery are disclosed. In the method, a static analysis can be performed on a plurality of services to be deployed in an environment comprising a plurality of nodes, to determine dependency relationships among the plurality of services. The plurality of services can be deployed in the environment based on the dependency relationships, a predefined priority for each of the plurality of services, and deployment time for each of the plurality of services. Also, the plurality of services can be scheduled into corresponding nodes in the environment.

Abstract: A method for calculating a surface relaxation rate of a shale includes: a relaxation time T distribution curve and a pore throat radius r distribution curve are obtained through experiments; abscissas of the two distribution curves are standardized, and the abscissa of the relaxation time T distribution curve is expanded or shrunk to ensure an abscissa value corresponding to a maximum ordinate value in the transformed relaxation time T distribution curve is same as an abscissa value corresponding to a maximum ordinate value in the pore throat radius r distribution curve; straight lines with a number of N parallel to a y-axis of a combined curve graph including the two distribution curves are drawn and a ? value corresponding to each straight line is calculated; and ? value with the number of N are processed to obtain a final surface relaxation rate ??.

Abstract: Disclosed are a zirconium-based metal-organic framework material and a preparation method thereof. Plasma-activated water or strong acid electrolyzed water is added to a raw material system for preparing a zirconium-based metal-organic framework material UiO-66, and they are then subjected to a reaction to obtain a crude product. The crude product is subjected to a post-treatment to obtain the zirconium-based metal-organic framework material UiO-66.

Abstract: The present disclosure provides a water-soluble dietary fiber (WSDF), use thereof in preparation of a medicament that promotes metabolism of ellagic acid (EA) into urolithin A, and a pharmaceutical composition, and belongs to the technical field of biological pharmaceuticals. The WSDF provided by the present disclosure includes at least two components selected from the group consisting of gellan gum, guar gum, carrageenan, fructooligosaccharide, xylooligosaccharide, malto-oligosaccharide, pectin, ?-glucan, polydextrose, sodium alginate, gum arabic, resistant dextrin, xanthan gum, tragacanth gum, and inulin. In the present disclosure, compounding the foregoing different combinations of the WSDF and EA to feed mice may significantly increase the average urolithin A content in mouse feces.

Abstract: The present disclosure provides use of an intestinal probiotic in preparation of a medicament that promotes metabolism of ellagic acid (EA) into urolithin A, a pharmaceutical composition and use thereof, and belongs to the technical field of biomedicine. In the present disclosure, probiotics capable of changing metabotypes of EA are selected from a plurality of probiotics. These probiotics alone or in combination can change an intestinal flora structure of a metabotype B and/or 0 population, thereby improving the efficiency of the metabolism of EA into urolithin A and increasing a yield of urolithin A. The present disclosure provides an intestinal probiotic for involving in and promoting the metabolism of EA into urolithin A, and provides a new idea for the treatment of diabetes, obesity, senescence, and diseases caused by central nervous system lesions and viral infection using urolithin A as an active pharmaceutical ingredient.

Abstract: An algorithm is presented to extract kinematic variables of ground vehicles and to generate labelled data sets for machine learning algorithms from the unmanned aerial vehicle (UAV) footage. Differently from the existing studies on vehicle detection and tracking, the output kinematic variables include not only position and speed, but also yaw angle and yaw rate, etc. In an intelligent transportation system, these parameters can be used on the planning and control of smart intersections and connected automated vehicles (CAVs). Compared to the GPS device, the proposed techniques provide smoother data and richer dynamics of the vehicles. The algorithm also generates oriented bounding boxes from the drone view (top view) images, and these bounding boxes are converted to the perspective of a fixed camera (roadside view) using homography. The kinematic data and the bounding boxes can serve as the ground truth for machine learning algorithms.

Abstract: Embodiments of self-heating tracking circuits for a power amplifier (PA) are disclosed. In an embodiment, a self-heating tracking circuit for a PA includes a PA replica circuit in proximity to the PA and an estimation unit configured to estimate a self-heating time constant of the PA in response to turning on the PA replica circuit and turning off the PA replica circuit.

Abstract: According to one embodiment, a method, computer system, and computer program product for predicting the movement intentions of ships is provided. The present invention may include obtaining binocular camera visual data of a body of water; identifying physical objects in the body of water; generating feature point clouds of the physical objects in the body of water; performing instance segmentation on the generated feature point clouds; analyzing the generated feature point clouds; predicting the movement intentions of identified ships in the body of water based on the analyzed feature point clouds; and displaying the predicted movement intentions of the identified ships in the body of water on an augmented reality device.

Abstract: Embodiments of the present disclosure relate to a method, system, and computer program product for comparison of database data. According to the method, a first tree structure corresponding to first data segments of first database data and a second tree structure corresponding to second data segments of second database data are at least partially obtained. Each node of the first or second tree structure indicating a characteristic value of at least one of the first or second data segments, and nodes of the first or second tree structure are divided into a first or second plurality of branches from a first or second root node based on update frequencies of the first or second data segments. A difference between the first data segments and the second data segments is determined by at least comparing characteristic values indicated by nodes in the obtained parts of the first and second tree structures.

Abstract: Disclosed is a three-degree-of-freedom parallel mechanism, a parallel robot and a machine tool. The parallel mechanism includes a fixed frame and a moving platform, and the fixed frame includes a fixed seat and a cylindrical body fixedly connected to the fixed seat; three identical limbs are uniformly distributed in the cylindrical body in a circumferential direction, and each limb includes a prismatic joint A, a hinge A, a swing arm, a hinge B and a hinge C which are sequentially connected; an axis of the hinge A is perpendicular to an axis of movement of the prismatic joint A; an axis of the hinge B is perpendicular to, but does not intersect with the axis of the hinge A, which rotates around the axis of the hinge A; the hinge C has two rotational degrees of freedom.

Abstract: The present disclosure discloses a preparation method of porous starch for encapsulating probiotic, and belongs to the field of food processing. The present disclosure provides porous starch with controllable pore size and morphology by regulating the ratio of amylose to amylopectin (quantitative compounding), keeping starch hydroxyl sites exposed (concentration cultivation), and building interfacial tension to stretch starch chains (convection drying), and uses the porous starch to encapsulate probiotics, which can improve the retention rate of probiotics, reduce the loss of probiotics during food processing and transportation, and thus retain the biological functions of probiotics to a maximum extent.

Abstract: Disclosed by the present invention is a method for preparing a reactive sealant resin, the method comprising: (1) under the action of an alkali catalyst, polymerizing a hydroxyl-containing initiator with an epoxy compound to obtain a polyether polyol; (2) adding an alkoxide reagent and a halogenated end-capping agent containing a double bond to the polyether polyol obtained in step (1) for reaction, so as to obtain a crude double-bonded polyether product, and refining the crude product to obtain a modified polyether product; and (3) subjecting the modified polyether and hydrogen-containing silane to silane end-capping reaction under the action of a hydrosilylation catalyst, so as to obtain the target product, i.e., a reactive sealant resin. The resin has excellent properties as well as good adhesion and paintability.

Abstract: A magnetic bearing assembly includes a rotation shaft having a groove provided at a peripheral surface thereof, and a plurality of distance sensors arranged at a periphery of the rotation shaft and arranged opposite to an annular surface of the rotation shaft where the groove is arranged. The plurality of distance sensors are disposed on a circle, and include N first sensors and N second sensors. N is an integer greater than 1. The first sensors and the second sensors are arranged alternately on the circle. A center of the circle is disposed on an axis of the rotation shaft, and a plane where the circle is disposed is perpendicular to the axis of the rotation shaft.

Abstract: A preparation method for a nanopore starch-based adsorbent. The method mainly comprises: constructing a large number of lamellar crystals on surfaces of starch granules, and inducing the formation of a nano-scale pore channel structure by means of the lamellar crystals. A large number of control tests have proved that the flaky crystals have direct influence on the formation of the nano-scale pore channel structure. The construction of a pore channel structure in a starch matrix material greatly increases the specific surface area, and improves the adsorption properties. In addition, the method is beneficial to the introduction of functional particles (magnetic particles), and avoids the problem of pore channel blockage due to first forming pores and then introducing functional particles.

Abstract: A pixel circuit and a driving method therefor, an array substrate and a display device are provided. The pixel circuit includes a driving circuit, a data writing circuit, a first initialization circuit. The driving circuit is configured to control a driving current; the data writing circuit is configured to write a data signal into the control terminal of the driving circuit; the first initialization circuit is configured to apply a first initialization voltage to the control terminal of the driving circuit, and includes a first transistor; the data writing circuit includes a second transistor and the driving circuit includes a third transistor; semiconductor materials of active layers of both the first transistor and the second transistor have a smaller leakage current characteristic than a semiconductor material of a third active layer of the third transistor.

Abstract: The present disclosure provides a method and apparatus for determining a utilization rate of wireless resources, an electronic device and a storage medium. The method includes acquiring communication data within a statistical period of a cell; determining a channel non-space division occupied wireless resource within in the statistical period; determining a channel space division occupied wireless resource within the statistical period; determining a channel available wireless resource within the statistical period; and determining the utilization rate of wireless resources.

Abstract: A cancellation circuit includes a limiter connected to an output of a first transmitter power amplifier that converts in input sinewave to a digital square wave and a digital to time converter (DTC) connected to the limiter. A RF digital to RF converter is connected to the DTC that converts the digital square wave input into an analog RF output. A cancellation amplifier with an input receives an output from the RF digital to RF converter and has an output connected to an output of a second transmitter power amplifier. The cancellation amplifier produces a cancellation signal to cancel an interference signal at the output of the second transmitter power amplifier from the output of the first transmitter power amplifier. A power detector is connected to the output of the second power amplifier that produces a power value detected at the output of the second power amplifier.

Abstract: The present invention discloses a conductive silver aluminum paste, a preparation method, an electrode, and an N-type Topcon battery. The conductive silver aluminum paste comprises silver powder, metal powder containing aluminum element, powder containing silicon or boron element, glass powder, and organic carrier; wherein, when defining the total weight of the conductive silver aluminum paste as 100%, the weight percentage content of each component is: silver powder 80.0%-90.0%, metal powder containing aluminum element 0.5%-3.0%; powder containing silicon or boron element 0.1%-1.0%; glass powder 1.5%-6.0%; organic carrier 7.0%-15.0%. The present invention meets requirements for electrode materials of current development of N-type Topcon batteries well, and has advantages of low contact resistances, high open circuit voltages, high photoelectric conversion efficiency, and high output power.