Abstract: Disclosed are a person Re-identification (Re-ID) method, apparatus, and device and a storage medium, and the method includes: acquiring a data set, where pieces of data in the data set are unlabeled person images; performing block processing on each piece of data in the data set, performing random ordering on each piece of blocked data to obtain out-of-order data corresponding to each piece of data, and generating negative sample data corresponding to each piece of data based on each piece of data and the corresponding out-of-order data; and performing unsupervised learning based on each piece of data in the data set, the out-of-order data of each piece of data, and the negative sample data of each piece of data to obtain a corresponding ID network, and performing person Re-ID based on the ID network.

Abstract: The present invention provides a system and methods for detecting long-range cis-regulatory element (CRE) activities in a nucleic acid molecule obtained from a cell sample, the system comprising: one or more components for measuring multi-omics from a single nucleic acid molecule obtained from the cell sample, wherein the multi-omics measurements comprise one or more of: three-dimensional chromosomal conformation, CpG methylation, GpC accessibility, single nucleotide polymorphisms (SNPs); or one or more combinations thereof, and one or more components for measuring a transcriptome of the cell sample; wherein the system is capable of profiling a plurality of long-range CREs within the nucleic acid molecule obtained from the cell sample.

Abstract: A control method includes obtaining distribution information of a point cloud obtained by a detection device. The detection device includes a light source, and a first reflection assembly and a second reflection assembly configured to cause a light beam emitted by the light source to scan in a first direction and a second direction, respectively, to obtain the point cloud in a detection range. The method further includes, in response to a point cloud line distribution of the point cloud deviating from the second direction, controlling the first reflection assembly to adjust from a current attitude to a target attitude, to correct the point cloud line distribution to the second direction.

Abstract: A method of fabricating an air gap includes receiving a first thickness information of an inter-metal dielectric layer formed on a substrate and receiving a second thickness information of an inter-layer dielectric layer formed on the substrate. Then, a first etching is performed, wherein the first etching includes etch the inter-metal dielectric layer based on a first etching control value corresponding to the first thickness information. After the first etching, a second etching is performed to etch the inter-layer dielectric layer based on a second etching control value corresponding to the second thickness information.

Abstract: The invention relates to a method for regulating the gas velocity of the empty bed in a fluidized bed, wherein solid catalysts are used as fluidized particles or as a part of fluidized particles, characterized in that the gas velocity of the empty bed ? of the reaction zone of the fluidized bed is measured, compared with the bed average catalyst density ? of the solid catalysts in the reaction zone of the fluidized bed, the gas velocity of the empty bed ? being adjusted as required such that the gas velocity of the empty bed ? and the bed average catalyst density ? satisfy the formula (I) below: ?=0.356?3?4.319?2?35.57?+M; wherein M=250?; where ? is provided in m/s and ? is provided in kg/m3. The method can be used for the industrial production of lower olefin.

Abstract: Embodiments of the present disclosure provide an encoding and decoding method, apparatus and device.

Abstract: A one piece staple strip is provided, including: a plurality of staples, each of the plurality of staples including two leg portions and a crown portion connected with and between the two leg portions; a connection portion, connected with and between every neighboring two staples of the plurality of staples; and a stop portion, projecting laterally from the leg portion of each of the plurality of staples and defining a holding space with the crown portion of each of the plurality of staples, the holding space being configured to receive a cable; wherein each of the two leg portions of each of the plurality of staples includes a spike section extending from the stop portion.

Abstract: The present disclosure may provide a radiation system. The radiation system may include a treatment head, a detector, a plurality of imaging sources, and a gantry. The treatment head, the detector, and the plurality of imaging sources may be mounted on the gantry. The treatment head may be configured to deliver a treatment beam toward an object. The plurality of imaging sources may be configured to deliver a plurality of imaging beams toward the object. At least two of the plurality of imaging sources may share the detector. The detector may be configured to detect at least two of the plurality of imaging beams. The detected at least two imaging beams may be emitted by different imaging sources of the at least two imaging sources.

Abstract: A method includes forming a first transistor over a substrate, in which the first transistor includes first source/drain epitaxy structures; forming a second transistor over the first transistor, in which the second transistor includes second source/drain epitaxy structures; forming an opening extending through one of the second source/drain epitaxy structures and exposing a top surface of one of the first source/drain epitaxy structures; performing a first deposition process to form a first metal in the opening, in which a first void is formed in the first metal during the first deposition process; performing a first etching back process to the first metal until the first void is absent; and performing a second deposition process to form a second metal in the opening and over the first metal.

Abstract: A semiconductor device that has two transistors and a source/drain contact. The first transistor has a layer of semiconductor material that acts as a channel, a structure that serves as a gate and wraps around the semiconductor channel layer, and two epitaxy structures on either end of the semiconductor channel layer that function as the source and drain. The second transistor is situated above the first transistor and has similar components, including a semiconductor channel layer, gate structure, and source/drain epitaxy structures. The connection between the first and second source/drain epitaxy structures is made by a source/drain contact that passes through one of the second source/drain epitaxy structures. This contact is made up of a metal plug and a metal liner that lines the plug.

Abstract: An electronic device including an electronic element, an encapsulation layer, a circuit structure, a bonding element, and a bolt is provided. The encapsulation layer surrounds the electronic element. The circuit structure is electrically connected to the electronic element. The bonding element is electrically connected to the electronic element via the circuit structure. The bolt is disposed between the circuit structure and the encapsulation layer. A manufacturing method of an electronic device is also provided.

Abstract: The present application provides a positive electrode material for a lithium ion secondary battery and a preparation method therefor. The positive electrode material for a lithium ion secondary battery comprises polycrystalline particles of a ternary positive electrode material and a modifying material. The polycrystalline particles comprise a plurality of primary particles. The modifying materials are located on the surface of the polycrystalline particles and/or at the grain boundary interfaces between the primary particles, wherein the modifying material comprises an oxide of a positive pentavalent or positive hexavalent transition metal. By using the positive electrode material for a lithium ion secondary battery and the preparation method therefor of the present application, the problem of cracking of secondary particles of the material during the circulation process is avoided.

Abstract: The invention provides an AC/DC conversion device for intelligent green-power operation and maintenance in power transmission and transformation projects, including a cabinet, an assembling panel, an inverter, a driving mechanism and a controller. A door is mounted at the front portion of the cabinet in a fixed and sealed manner, and the assembling panel is fixedly mounted on the back wall of the cabinet inside the cabinet. The assembling panel, the inverter, the driving mechanism and the controller are all provided inside the cabinet, which provides desirable dust-proof effects, preventing the case where the inverter, the driving mechanism and the controller are interfered by the dust, so that this device is suitable for outdoor usage. The driving mechanism and the controller work in coordination, so that the inverter can be switched off in time when it burns out and smokes, thereby substantially reducing the risk of fire hazards.

Abstract: The invention provides an AC/DC conversion device for intelligent green-power operation and maintenance in power transmission and transformation projects, including a cabinet, an assembling panel, an inverter, a driving mechanism and a controller. A door is mounted at the front portion of the cabinet in a fixed and sealed manner, and the assembling panel is fixedly mounted on the back wall of the cabinet inside the cabinet. The assembling panel, the inverter, the driving mechanism and the controller are all provided inside the cabinet, which provides desirable dust-proof effects, preventing the case where the inverter, the driving mechanism and the controller are interfered by the dust, so that this device is suitable for outdoor usage. The driving mechanism and the controller work in coordination, so that the inverter can be switched off in time when it burns out and smokes, thereby substantially reducing the risk of fire hazards.

Abstract: A non-pneumatic tire is provided. The non-pneumatic tire includes an outer annular portion, an inner annular portion, and a load bearing ring positioned between the outer annular portion and the inner annular portion, the load bearing ring including an inner layer of matrix material, an outer layer of matrix material, and a wave shaped spring positioned between the inner layer of matrix material and the outer layer of matrix material.

Abstract: A decoding method and apparatus, and an encoding method and apparatus for a picture are provided, and relate to the field of video encoding and decoding. The decoding method includes: analyzing a code stream to obtain one or more picture frames, wherein a picture frame comprises one or more coding units (CUs); determining a plurality of quantization parameter (QP) values for the picture frame, wherein a CU comprises a plurality of quantization groups (QGs), and a QG corresponds to a QP value; and decoding the picture frame based on the plurality of QP values.

Abstract: A dual-use guard of an angle grinder includes a first guard, a connecting portion, and a second guard, where the first guard includes a semicircular or fan-shaped base and an enclosure arranged on an edge of the base, the enclosure extends towards one side of the base by a set length, an arc-shaped notch allowing a spindle of the angle grinder to penetrate through is formed in the center of the base, an extension raised towards a side away from the enclosure is arranged at the notch of the base, and the connecting portion connected to the angle grinder is fixedly arranged on the extension of the base. The second guard is fixedly arranged on a side, away from the base, of the enclosure and shaped like a small cut circle. Debris can be effectively prevented from splashing out from the side face of the guard.

Abstract: A user equipment includes circuitry which selects a random access preamble sequence, and a transmitter which transmits the random access preamble sequence to a base station in a frequency bandwidth of an unlicensed band, and performs at least one of a first operation and a second operation. In the first operation, the circuitry selects a first sequence as the random access preamble sequence, the first sequence having a length longer than a length of a random preamble sequence used for a licensed band, and the transmitter transmits the first sequence in the frequency bandwidth of the unlicensed band. In the second operation, the circuitry selects a second sequence as the random access preamble sequence, the second sequence having a length equal to the length of a random preamble sequence used for the licensed band, and the transmitter transmits the second sequence with repetitions in the frequency bandwidth of the unlicensed band.

Abstract: An organic light emitting diode display substrate, comprises: a base substrate, and a first data line, a driving thin film transistor and an energy storage capacitor, wherein the energy storage capacitor comprises a first capacitor plate and a second capacitor plate disposed opposite to each other, and the second capacitor plate is electrically connected to a gate of the driving thin film transistor, in a direction away from the base substrate, the first capacitor plate is disposed between the first data line and the second capacitor plate. The display substrate further comprises a shielding portion. The shielding portion is between the second capacitor plate and the first data line in a direction perpendicular to the base substrate, and an orthographic projection of the shielding portion on the base substrate at least partially overlap an orthographic projection of the first data line on the base substrate.

Abstract: A trunk bus connector for electrically coupling one or more branch cables to a trunk line may comprise a junction area where one or more stripped portions of the branch cable(s) can be secured against a stripped portion of the trunk line. The trunk bus connector may comprise an overmold substantially encapsulating the junction area and comprising a trunk line pathway to enable the trunk line to pass through the junction area. The overmold may comprise one or more branch entry pathways to enable the branch cable(s) access into the junction area. Each branch entry pathway may be angled with respect to the trunk line pathway such that the branch cable(s) enter into the junction area such that an angle at which each branch cable approaches the trunk line is between approximately 30 and 50 degrees.