Abstract: An unsupervised feature selection method based on latent space learning and manifold constraints includes: S11, inputting an original data matrix to obtain a feature selection model; S12, embedding latent space learning into the feature selection model to obtain a feature selection model with the latent space learning; S13, adding a graph Laplacian regularization term into the feature selection model with the latent space learning to obtain an objective function; S14, solving the objective function by adopting an alternative iterative optimization strategy; and S15, sequencing each feature in the original matrix, and selecting the first k features to obtain an optimal feature subset. Feature selection is performed in a learned potential latent space, and the space is robust to noise. The potential latent space is modeled by non-negative matrix decomposition of a similarity matrix, and the matrix decomposition can unambiguously reflect relationships between data instances.

Abstract: The present invention relates to a ventilating and blanking device for a coal storage Eurosilo. The ventilating and blanking device includes a top blanking pipe, an axial flow fan and a baffle door, the top blanking pipe including a first pipeline and a second pipeline, an air supply pipe is connected to a side wall of the second pipeline, and the baffle door is connected to a driving mechanism; during blanking, the driving mechanism drives the baffle door so as to make the baffle door close the air supply pipe and the axial flow fan is shut off; and during ventilation, the driving mechanism drives the baffle door so as to make the baffle door close the first pipeline, and the axial flow fan is turned on. Compared with the prior art, the present invention has the advantages of ventilation efficiency, good ventilation effect, etc.

Abstract: Described herein is a weft-knitted spacer fabric and a preparation method thereof, a polyurethane foam composite material including the fabric, a preparation method of the composite material and its use in shoe materials. The weft-knitted spacer fabric consists of an upper surface layer, intermediate spacer yarns, and a lower surface layer, and the upper surface and the lower surface layer are connected by the tuck of the spacer yarns in the upper surface and the lower surface layer to form a three-dimensional structure in an integrated manner. The different selected tuck needle changes the connecting distance and the number of connections of the tuck, and the thickness of the spacer fabric and the arrangement density of the spacer yarns are changed by the action of the upper and lower surface layers of elastic yarns.

Abstract: An embodiment includes identifying, during a video conference attended by a first attendee, other attendees of the video conference. The embodiment renders a virtual meeting environment including virtual representations of the other attendees, where the rendering includes accessing relationship characteristic data indicative of relationships between the first attendee and other attendees. The embodiment calculates positions for virtual representations of the other attendees in the first attendee's virtual field of view based on the relationship characteristic data. The embodiment also detects simultaneous speech from two of the other attendees and, in response, directs the individual speech from each of the other attendees to respective audio channels.

Abstract: The present invention provides compounds, compositions thereof, and methods of using the same.

Abstract: The present disclosure relates to a control method of a virtual object, a control apparatus, a device and a medium. The method displays a target virtual scene in a target interactive interface, under the condition that there is a target virtual object in the plurality of virtual objects, displays a target control, the target virtual object being a virtual object controllable by the virtual subject in a non-contact manner; in response to receiving a trigger operation on the target control, causes the virtual subject to perform non-contact control on the target virtual object according to a control mode corresponding to the target control, wherein the target virtual scene includes a plurality of virtual objects and a virtual subject controlled by a user.

Abstract: In the spark plug heat rating measurement method and system based on spark discharge current active heating, the spark plug is installed in a constant-temperature water jacket cooling chamber with a specific torque. A constant spark discharge current control module is connected to the high-voltage terminal of the spark plug, to provide real-time controlled discharge current to heat up the high-voltage central electrode of the spark plug. During the spark discharge process, the temperature change of the high-voltage central electrode and the surrounding ceramic insulator are measured by a temperature detection module and used to determine the heat rating of the spark plug. By real time adjusting the discharge current level of the spark plug, or providing a same amount of spark energy to the spark gap, the heat ratings of spark plugs with different ceramic insulation structures can be evaluated through the temperature changes during discharge or after discharge.

Abstract: The present disclosure provides a high-temperature negative-pressure air exchange sterilizer and a sterilization method thereof. An air inlet is disposed at a bottom of a waterproof shell of the sterilizer, and an inlet filter is installed at the air inlet. Air entering from the air inlet is divided into two paths at a check valve. One path is connected with a negative-pressure fan through a pipeline B, and the other path is communicated with an air outlet through a pipeline A. A plurality of heating rods and temperature sensors are disposed in the pipeline A. The pipeline A is zigzag disposed at an upper part of the waterproof shell, and a thermal insulation material is disposed outside a zigzag part. A butterfly valve and an outlet filter screen are sequentially disposed at the air outlet in an air exhaust direction. The problem that viruses exhaled by breathing of an infected person are mixed in aerosol, so that a person in close contact with the infected person is likely to be infected is solved.

Abstract: Disclosed are an interactive information processing method, an electronic device and a storage medium. The method includes establishing a position correspondence between a display text generated based on a multimedia data stream and the multimedia data stream; and presenting the display text and the multimedia data stream corresponding to the display text based on the position correspondence.

Abstract: A data transmission method, a device, a network system, and a storage medium. According to the method, a PCIe request end requests an application scenario of a data fragment from a PCIe destination end according to a Non-Posted data transmission mode; and on a PCIe link, the Non-Posted data transmission mode is converted, without the perception of the PCIe request end and PCIe destination end, into a Posted data transmission mode by means of pre-reading, so that the delay of the PCIe link is reduced, and the utilization of bandwidth of the PCIe link is improved.

Abstract: The present disclosure is related to reducing shake and vibration in Head-Up Displays (HUDs) under dynamic operating conditions. The apparatus includes a curved mirror for projecting an image from a display unit on a windshield of a vehicle. The curved mirror has damping tape on its nonreflective side to absorb vibrational energy and shift the first natural frequency of the curved mirror to a higher frequency. The damping tape includes at least a viscoelastic adhesive layer and a constraining layer. The method for stabilizing the HUD includes applying damping tape selected and positioned to reduce vibrational amplitude and shift the first natural frequency of the curved mirror to a higher frequency.

Abstract: A time-resolved fluorescence immunochromatography test paper card for detecting butralin, which comprises a cover body and a housing body, wherein the cover body is provided with a test hole, a loading hole and a through-hole, an isolating mechanism is arranged in the test hole and the loading hole, the isolating mechanism comprises a first isolating ring and a second isolating ring, the top lateral walls of which are respectively provided with a first lug boss and a second lug boss, one end of the upper surface of the working board is concave towards the inner of the working board to provide a groove, there is a nitrocellulose membrane, a binding pad, a sample pad and a mark zone successively provided between the water absorbing block and the other end of the working board, and the lateral wall at one end of the working board is provided with a bump.

Abstract: The present disclosure provides a method, an apparatus, and a non-transitory computer readable medium for scheduling tasks.

Abstract: A method and device for detecting pyrethroid pesticide residues in crops. Reaction membrane is arranged on a bottom plate and provided with a check-up line and a quality control line; a first mounting block and a second mounting block are arranged on the bottom plate; a first slide is arranged in the first mounting block, a second slide is arranged in the second mounting block; a sample pad and a bonding pad are arranged in the first slide; a water absorption pad is arranged in the second slide; a liquid inlet provided with a pipe is formed in the first mounting block, a pressing hole provided with a press block is formed in the second mounting block; protrusions are respectively formed on the pipe and the press block; sliding grooves are formed in the liquid inlet and the pressing hole; and first springs are arranged between the protrusions and the sliding grooves.

Abstract: The present disclosure is related to reducing shake and vibration in Head-Up Displays (HUDs) under dynamic operating conditions. The apparatus includes a curved mirror for projecting an image from a display unit on a windshield of a vehicle. The curved mirror has damping tape on its nonreflective side to absorb vibrational energy and shift the first natural frequency of the curved mirror to a higher frequency. The damping tape includes at least a viscoelastic adhesive layer and a constraining layer. The method for stabilizing the HUD includes applying damping tape selected and positioned to reduce vibrational amplitude and shift the first natural frequency of the curved mirror to a higher frequency.

Abstract: A portable pesticide application equipment with accurate application, which includes a pesticide tank. Rollers are arranged at the bottom of the pesticide tank. An inclined pesticide guide plate is arranged below the filter. A side connector is arranged at one side of the pesticide tank. The side connector is connected with a long hose. The long hose is connected with a pesticide discharging device. The pesticide discharging device includes a pesticide control box, two sides of which are hinged with a first iron handle and a second iron handle. A first nozzle is connected with the bottom end of the first iron handle while a second nozzle is connected with the bottom end of the second iron handle. The upper end of the first iron handle is inserted into a first support rod while the upper end of the second iron handle is inserted into a second support rod.

Abstract: Embodiment of this disclosure provides a mechanism to extend a workload instruction to include both untranslated and translated address space identifiers (ASIDs). In one embodiment, a processing device comprising a translation manager is provided. The translation manager receives a workload instruction from a guest application. The workload instruction comprises an untranslated (ASID) and a workload for an input/output (I/O) device. The untranslated ASID is translated to a translated ASID. The translated ASID inserted into a payload of the workload instruction. Thereupon, the payload is provided to a work queue of the I/O device to execute the workload based in part on at least one of: the translated ASID or the untranslated ASID.

Abstract: A migration method and a migration system of a virtual machine are disclosed. The method includes: a virtual machine detecting whether a migration instruction is received, wherein the virtual machine runs on a first processor of a first host machine; the virtual machine calling and obtaining video memory data generated in the first processor if the migration instruction is detected; and the virtual machine migrating the video memory data to a second processor of a second host machine. The present disclosure solves the technical problem that a virtual machine using a GPU pass-through mode fails to perform a live migration between host machines in the existing technologies.

Abstract: A method and device for detecting pyrethroid pesticide residues in crops. Reaction membrane is arranged on a bottom plate and provided with a check-up line and a quality control line; a first mounting block and a second mounting block are arranged on the bottom plate; a first slide is arranged in the first mounting block, a second slide is arranged in the second mounting block; a sample pad and a bonding pad are arranged in the first slide; a water absorption pad is arranged in the second slide; a liquid inlet provided with a pipe is formed in the first mounting block, a pressing hole provided with a press block is formed in the second mounting block; protrusions are respectively formed on the pipe and the press block; sliding grooves are formed in the liquid inlet and the pressing hole; and first springs are arranged between the protrusions and the sliding grooves.

Abstract: Data reading method, device, and storage medium of a non-volatile memory are provided. The method includes obtaining address information and decoding the address information to determine an address of a corresponding memory cell; when the address of the memory cell is in a selected region, adjusting a first determination reference value to obtain a second determination reference value; applying a readout current to the memory cell, and obtaining a determination current outputted by the memory cell; and comparing a value range of the determination current outputted by the memory cell with the second determination reference value and reading out data content stored in the memory cell.