Abstract: Methods, systems and apparatus for identifying advertisements previously presented when processing related search queries related to a submitted search query, and providing the advertisements identified from the related search queries for presentation on a search results page for the submitted search query.

Abstract: A method for detecting infectivity of a human coronavirus is provided. The method includes steps of: (a) dividing a testing sample into a first sample and a second sample; (b) treating the first sample with an intercalating dye or chemical; (c) exposing the first sample to a light for photo-activation; (d) amplifying targeted nucleic acids in the first sample and the second sample; and (e) determining infectivity of the human coronavirus based on amplification results of the first sample and the second sample.

Abstract: Disclosed herein are embodiments of compositions for gas sensing and sensors utilizing the same. In one embodiment, a composition comprises carbon nanotubes and polymer-coated metal nanoparticles bound to the carbon nanotubes.

Abstract: A coal and gangue identification device is disclosed. The device includes a rotary supporting frame, a water injection unit, a weighing unit, a liquid level detection device and a processing module. The rotary supporting frame is provided with a loading unit used to load a mineral aggregate. The rotary supporting frame is used to drive the loading unit to rotate on a horizontal plane. In the rotating process of the rotary supporting frame, the loading unit cyclically passes through a water injection region, a material adding region, a volume measurement region and an unloading region which are sequentially disposed on a rotation trajectory of the rotary supporting frame. The water injection unit is used to inject water to the loading unit of the water injection region.

Abstract: Methods, systems and media for deep neural network interpretation via rule extraction. The interpretation of the deep neural network is based on extracting one or more rules approximating classification behavior of the network. Rules are defined by identifying a set of hyperplanes through the data space that collectively define a convex polytope that separates a target class of input samples from input samples of different classes. Each rule corresponds to a set of decision boundaries between two different decision outcomes. Human-understandable representations of rules may be generated. One or more rules may be used to generate a classifier. The representations and interpretations exhibit faithfulness, robustness, and comprehensiveness relative to other known approaches.

Abstract: The present invention proposes a coal and gangue separation device, including a first supporting seat, a guide part and multiple material bins. The guide part is hinged with the first supporting seat; the guide part rotates in a vertical direction; and inlets of the plurality of material bins are sequentially distributed on a rotation track of a movable end of the guide part. In the coal and gangue separation device of the present invention, the high-pressure airflow of a high-pressure nozzle does not directly act on the materials, but on grate bar driving mechanisms; and cantilever grate bars are driven to rotate by the grate bar driving mechanisms so as to directionally discharge the mineral aggregate. Therefore, the gangue can accurately enter a gangue collection bin; and the clean coal can accurately enter a clean coal collection bin.

Abstract: A virtual character control method includes: displaying a virtual environment interface; receiving a skill cast operation and a movement control operation, the skill cast operation being used for casting a directional skill in a first direction, and the movement control operation being used for controlling a main control virtual character to move in a second direction, the first direction and the second direction being independent of each other; and controlling the main control virtual character to cast the directional skill in the second direction. When the directional skill is cast, the second direction is determined according to the received movement control operation, and the main control virtual character is controlled to cast the directional skill in the second direction.

Abstract: A flat-panel display device described herein includes a display screen; a display backplate; a chassis slidably arranged on the display backplate; a fixing support, a motion module arranged on the chassis, wherein the motion module includes a first telescopic assembly and a second telescopic assembly arranged on the fixing support; a first speaker arranged on the chassis; and a second speaker connected to the second telescopic assembly. The first telescopic assembly is matched with the display backplate and configured to drive the chassis, the first speaker, the second speaker and the second telescopic assembly to move back and forth in a first direction relative to the display backplate. The second telescopic assembly is configured to drive the second speaker to move back and forth in a second direction relative to the display backplate and the first speaker.

Abstract: The present disclosure discloses a helmet with a split type skeleton structure. The helmet includes a helmet body; the helmet body is composed of a head guard and a chin guard which are separated; the head guard and the chin guard are mounted through cooperation between a fastened spliced skeleton and a plug pin; the spliced skeleton is composed of two skeleton connection members arranged inside the head guard and a chin skeleton arranged inside the chin guard; and hollows of a surface of the chin skeleton are fixedly connected with a plurality of one-piece structured reinforcing ribs.

Abstract: An electric seat and an angle adjustment device thereof are provided. The angle adjustment device includes an inner toothed plate and an outer toothed plate engaging with each other, and an eccentric cavity formed therebetween. An eccentric ring completely occupying a positive eccentric region of the eccentric cavity is provided in the eccentric cavity. The eccentric ring has a first accommodating region and a second accommodating region along a circumferential direction. The angle adjustment device further comprises a driving component for driving rotation of the eccentric ring. A damping component is provided in the first accommodating region and/or the second accommodating region, and the damping component is in a compressed state during operation of the driving component. The damping component eliminates a useless stroke in the above operation, thereby eliminating an adjustment lag experienced by a passenger during reverse adjustment of a seat and backrest.

Abstract: A method for filling an aerosol generating product includes: preparing a tube body of the aerosol generating product; filling a filter element into the tube body, wherein the filter element is adjacent to a near-lip end of the tube body; installing a blocking and flow guide element from a far-lip end of the tube body; installing a fuming unit from the far-lip end of the tube body, where the fuming unit is located at the far-lip end of the tube body; and sealing the far-lip end of the tube body, and forming a sealing part on an end face of the far-lip end of the tube body. In the new method, each component is successively filled from the near-lip end to the far-lip end of the aerosol generating product, thereby effectively avoiding the pollution caused by the fuming unit on the tube body during the filling of the fuming unit.

Abstract: A light emitting substrate, a wiring substrate and a display device are provided. The light emitting substrate includes light emitting units and a first electrode wire. The first electrode wire includes a first wire and a second wire. The light emitting units include first light emitting units and second light emitting units, a position of each first light emitting unit is a first light emitting unit region, a position of each second light emitting unit is is a second light emitting unit region, the first wire is connected with the first light emitting unit, passes through the first light emitting unit region and is located at an outer side of the second light emitting unit region, the second wire is connected with the second light emitting unit, passes through the second light emitting unit region and is located at an outer side of the first light emitting unit region.

Abstract: An electrostatic prevention circuit, an array substrate and a display device are provided. The electrostatic prevention circuit includes an electrostatic prevention sub-circuit, and the electrostatic prevention sub-circuit includes a thin film transistor and a capacitor; a gate electrode of the thin film transistor is connected to the capacitor, and the thin film transistor is controlled by a signal passing through the capacitor.

Abstract: Techniques for virtual machines include receiving virtual machine (VM) requests, and finding one or more VM requests of the VM requests that optimize available resources of a candidate host machine while seeking to minimize differences between the one or more VM requests and the candidate host machine. The one or more VM requests are allocated to the candidate host machine.

Abstract: Data collection is provided, in which one or more affected transactions related to one or more transaction exceptions are determined. Based on one or more features of the one or more affected transactions, one or more trace features are determined. Based on the one or more trace features, a data collection rule is generated. Data of a subsequent transaction complying with the data collection rule is collected.

Abstract: A method of treating tunnel collapse includes leveling a collapse body and moving a pavilion support under the collapse cavity, lifting a shield plate until a lower edge of the shield plate surpasses a contour line of an initial supporting arch of a tunnel, connecting a bottom column and inserting a padding plate under a column. If the hydraulic prop retracts, the column, the bottom column, the padding plate and the hydraulic prop bear a load from the shield plate. Mounting and connecting the initial supporting arch, welding the intersection point of the column and the initial supporting arch, cutting off the column in the initial supporting arch. Transferring the load of the shield plate from the pavilion support to an initial supporting shed, spraying fast-setting concrete to a grid arch to form a closed shell, and pumping filling material to fill the space of the collapse cavity.

Abstract: Methods and systems for decentralized federated learning are described. Each client participating the training of a local machine learning model identifies one or more neighbor clients in direct communication with itself. Each client transmits to its neighbor clients a weighting coefficient and a set of local model parameters for the local model. Each client also receives from its neighbor clients respective sets of local model parameters and respective weighting coefficients. Each client updates its own set of local model parameters using a weighted aggregation of the received sets of local model parameters, each received set of local model parameters being weighted with the respective received weighting coefficient. Each client trains its local machine learning model using a machine learning algorithm and its own local dataset.

Abstract: Embodiments of the present disclosure provide a distributed storage method and a distributed storage device. The method includes offline merging, by a first thread service of a distributed storage system, M small files in a file system, generating, by the first thread service, M pieces of metadata in the offline merging process, loading, by a second thread service of the distributed storage system, the M pieces of metadata into a metadata set, searching, by the second thread service, the metadata set for metadata of a first small file when the second thread service receives a first instruction, and performing, by the second thread service, the operation corresponding to the first instruction when the second thread service finds the metadata of the first small file in the metadata set.

Abstract: A construction method for a shallow-buried multi-arch tunnel under water-rich geological conditions includes the following steps: cleaning a grouting ground surface; marking a grouting reinforcement scope; performing survey setting-out; drawing a cross-section diagram to scale; calculating out coordinates and angles of anchor points that need to be set; marking drilling positions; nailing small wooden piles at the drilling positions for identifying; determining a setting depth of the anchor rods according to ground elevation; drilling holes, cleaning bottom of hole, grouting, performing construction preparation, performing long pipe shed construction at the entrance after an earth-rock of a tunnel entrance and an open cut tunnel is excavated to flush with a springing line of the tunnel. A down-the-hole drill is used for drilling in construction. Long pipe shed grouting is designed based on solidifying a soil mass in limited scope around a consolidation pipe shed.

Abstract: A negative-pressure balance system for a gearbox of a centrifugal compressor includes the gearbox, a hermetically-sealed low-level oil collecting tank and a U-shaped negative-pressure balance pipe. The gearbox is connected to a respirator, and the back pressure of the respirator is a local ambient atmospheric pressure. The bottom of the gearbox and the low-level oil collecting tank are connected by an oil conduit. An oil demister communicated with the low-level oil collecting tank is mounted at the top of the low-level oil collecting tank. The oil demister at least includes a ventilation device. The respirator is communicated with a front-end lubricating point in the gearbox. One end of the U-shaped negative-pressure balance pipe is communicated with the respirator, and the other end of the U-shaped negative-pressure balance pipe is communicated with a rear-end lubricating point in the gearbox.