Abstract: A multi-purpose digital damping device and application thereof is disclosed. The device comprises a mandrel, a movement disc disposed in a middle section of the mandrel, a first body and a second body rotationally connected to the mandrel, an inertia wheel rotationally connected coaxially to the mandrel, a pulse-width modulation circuit electrically connected to a coil. The first body and the second body are disposed respectively on each side of the movement disc and are merged by a seal ring to form a sealing cavity. A magnetic powder and the movement disc are both disposed in the sealing cavity. A coil frame for coil mounting is provided outside of the sealing cavity. The coil is mounted on the coil frame. A third body is provided for enclosing the coil on the coil frame. The third body is detachably connected respectively to the first body and the second body.

Abstract: A staged cementing device includes a cylindrical body having an inner chamber. A circulating opening and a liquid inlet recess open to the inner chamber are arranged on a wall of the body. An opening assembly is arranged in the body, which has an opening sleeve and an opening seat located in the opening sleeve. Initially the opening sleeve is connected with the body through a first shear pin and covers the circulating opening, and the opening seat is connected with the opening sleeve through a second shear pin and covers the liquid inlet recess. A packer includes a packing valve body and a packer rubber. The packing valve body includes a flow channel in communication with the liquid inlet recess, and the packer rubber includes a liquid reservoir in communication with the flow channel. The second shear pin is sheared off in response to primary cementing procedure.

Abstract: A flow splitting device for gas reverse circulation drilling, including: an upper joint for connecting with a double-wall drill pipe; an inner tube which is arranged in the upper joint and defines a first passageway in communication with an inner chamber of the double-wall drill pipe, a second passageway in communication with an annular space in the double-wall drill pipe formed between the inner tube and the upper joint; a lower joint, having an upper end fixedly connected with the upper joint and a lower end for connecting with a drill tool; and a flow guiding member provided between the upper joint and the lower joint. A flexible sealing mechanism is provided outside the upper joint. The flexible sealing mechanism extends radially outward relative to the upper joint and the lower joint to form a sealing contact with a wellbore wall.

Abstract: A reflector is configured to reflect sunlight onto the double-sided power generation cell and mainly includes the reflector. The reflector is provided with a plurality of reflection regions. Each of the plurality of reflection regions is provided with a reflection protrusion having a different inclination angle. The double-sided power generation cell is obliquely disposed between two adjacent ones of the plurality of reflection regions. The reflection regions are capable of reflecting the sunlight onto a light-receiving side and a rear side of the double-sided power generation cell.

Abstract: Provided are a lightweight solar power generation panel and a method of preparing the same. The lightweight solar power generation panel comprises a substrate, an insulating layer, a cell layer and a support layer which are stacked in sequence; a material of the substrate comprises any one or a combination of at least two of polypropylene, polyvinyl chloride, polyethylene, polymethyl methacrylate, polycarbonate, polystyrene or an acrylonitrile-butadiene-styrene copolymer. The low-density substrate material is used in the lightweight solar power generation panel provided by the present disclosure so that the entire solar power generation panel is lighter and portable.

Abstract: The present disclosures are directed to a composition comprising at least one silane functional amine; a method of preparing a silane functional amine; a rubber composition comprising at least one silane functional amine, at least one diene-based polymer, silica, at least one process aid, and a vulcanizing package comprising at least one vulcanizing agent comprising sulfur and at least one accelerator; and a process of preparing a rubber composition.

Abstract: A computer-implemented method includes receiving first inputs associated with a first modality and second inputs associated with a second modality; processing the received first and second inputs with convolutional neural networks (CNN), wherein a set of first weights are used to handle the first inputs and a second set of weights are used to handle the second inputs; determining a loss for each of the first and the second inputs based on a loss function that applies the first set of weights, the second set of weights, and a presence of a co-occurrence; generating a shared feature space as an output of the CNNs, wherein a distance between cells associated with the first inputs and the second inputs in the shared feature space is determined based on the loss associated with each of the first inputs and the second inputs; and based on the shared feature space, providing an output.

Abstract: A computer-implemented method, comprising, extracting a video sequence, the video sequence including a series of video frames, estimating current poses of one or more subjects within each video frame and determining joint locations for a joint associated with the one or more subjects within each video frame, computing optical flows from the video sequence, extracting motion features from the video sequence based on the optical flows, and predicting at least one future pose.

Abstract: A computer-implemented method, comprising, extracting a video sequence, the video sequence including a series of video frames, estimating current poses of one or more subjects within each video frame and determining joint locations for a joint associated with the one or more subjects within each video frame, computing optical flows from the video sequence, extracting motion features from the video sequence based on the optical flows, and predicting at least one future pose.

Abstract: A computer-implemented method includes receiving first inputs associated with a first modality and second inputs associated with a second modality; processing the received first and second inputs with convolutional neural networks (CNN), wherein a set of first weights are used to handle the first inputs and a second set of weights are used to handle the second inputs; determining a loss for each of the first and the second inputs based on a loss function that applies the first set of weights, the second set of weights, and a presence of a co-occurrence; generating a shared feature space as an output of the CNNs, wherein a distance between cells associated with the first inputs and the second inputs in the shared feature space is determined based on the loss associated with each of the first inputs and the second inputs; and based on the shared feature space, providing an output.

Abstract: There are provided in the present disclosure a behavior prediction method, an apparatus, a system and a non-transitory recording medium. The behavior prediction method includes: obtaining a part of behavior action video frame sequence, which only reflects a part of behavior actions but does not reflect all of the behavior actions; selecting a key information frame from the part of behavior action video frame sequence, wherein the key information frame has a significant differentiation in the part of behavior action video frame sequence; and predicting a type of the behavior action based on the key information frame.

Abstract: There is provided herein a method for the manufacture of alkoxysilyl-containing thiocarboxylic acid ester which comprises reacting a thioester with a mercapto-functional alkoxysilane and/or an alkali metal salt, an alkaline earth metal salt, a trisubstituted ammonium salt of an alkoxysilyl-functional thiolate which uses economical and readily available reagents, avoids the use of phosgene or thionyl chloride reagents and produces byproducts that may be recycled.

Abstract: A computer-implemented method, comprising extracting each frame of a video sequence, estimating current poses of a subject within each frame and determining joint locations for a joint associated with the subject within each frame, computing optical flows between each pair of consecutive video frames, extracting motion features from each video frame of the video sequence based on the optical flows, encoding state information based on the current poses and the motion features, determining a current action label for each motion feature in the state information for a first frame; predicting future action labels for each motion feature in a second frame subsequent to the first frame, based on the current pose, action label and state information, predicting future poses for each motion feature in the second frame based on the current poses and the state information; and refining the current action label, the future action labels, and the future poses.

Abstract: There is provided herein a method for the manufacture of alkoxysilyl-containing thiocarboxylic acid ester which comprises reacting a thioester with a mercapto-functional alkoxysilane and/or an alkali metal salt, an alkaline earth metal salt, a trisubstituted ammonium salt of an alkoxysilyl-functional thiolate which uses economical and readily available reagents, avoids the use of phosgene or thionyl chloride reagents and produces byproducts that may be recycled.

Abstract: A photovoltaic tile and a photovoltaic system are disclosed. The photovoltaic tile includes a tile base including a flat plate portion and at least one bulging portion connected to the flat plate portion; a first cell piece, which is a flat cell piece, is formed on an outer surface of the flat plate portion, and a second cell piece matched with an outer surface of at least one of the bulging portions is formed on the outer surface of the at least one of the bulging portions. The photovoltaic system includes the above-mentioned photovoltaic tile.

Abstract: A lap mounted solar power tile, wherein a light receiving surface of the solar power generation tile is divided into a power generation area, a packaging area and an installation occlusion area, the power generation area is located inside the packaging area; the backlight surface of the solar power generation tile is provided with hooks for mounting; the left and right sides of the solar power generation tile may be connected to adjacent solar power generation tiles in a lapping

Abstract: The present disclosure provides an installation structure of a curved tile, including a first curved tile and a second curved tile which each comprises a tile body, wherein both ends of the tile body are respectively a first curved overlapping portion and a second curved overlapping portion, a curved surface of the first curved overlapping portion faces downward, a curved surface of the second curved overlapping portion faces upward, the first curved overlapping portion of the first curved tile overlaps on the second curved overlapping portion of the second curved tile, and a waterproof structure is disposed at a position where the first curved tile overlaps with the second curved tile.

Abstract: There are provided in the present disclosure a behavior prediction method, an apparatus, a system and a non-transitory recording medium. The behavior prediction method includes: obtaining a part of behavior action video frame sequence, which only reflects a part of behavior actions but does not reflect all of the behavior actions; selecting a key information frame from the part of behavior action video frame sequence, wherein the key information frame has a significant differentiation in the part of behavior action video frame sequence; and predicting a type of the behavior action based on the key information frame.

Abstract: Disclosed is a ceramic back cover used in an electronic device and an electronic device having the ceramic back cover. A wireless charging RX coil is disposed on an inner surface of the ceramic back cover, a groove used for disposing the wireless charging RX coil is in an intermediate region of the inner surface of the ceramic back cover, and at least two wireless charging RX electrode grooves that extend outward separately from an intermediate region of the groove and a marginal region of the groove are formed on the inner surface of the ceramic back cover. Electrodes formed in the at least two wireless charging RX electrode grooves are used as leading-out ends of the wireless charging RX coil disposed in the groove, and two ends of the wireless charging RX coil are welded at the leading-out ends.

Abstract: The present invention is directed to a process for the synthesis of organohalosilane monomers, comprising the steps of (1) forming a slurry of cyclone fines, ultra fines and/or spent contact mass in a thermally stable solvent and reacting the agitated slurry with an organohalide of the formula R1X in the presence of an additive for a time and at a temperature sufficient to produce organohalosilane monomers having the formulae R1SiHX2, R12SiHX, R13SiX, R1SiX3, and R12SiX2; wherein R1 is a saturated or unsaturated aromatic group, a saturated or unsaturated aliphatic group, alkaryl group, or cycloaliphatic hydrocarbyl group, and X is a halogen; and (2) recovering said organohalosilane monomers.