Abstract: A positive electrode material, a preparation method therefor, and an application thereof are disclosed. The cathode material is composed of secondary particles agglomerated by primary particles; wherein individual secondary particle contains an inner core structure, a middle layer, and a shell layer, in this order, along a direction from a center to a surface of the secondary particle; wherein the middle layer is distributed in a circular ring shape; and wherein the secondary particle has a structure of close packing of an inner core structure, loose and porous middle layer, and close packing of the shell layer.

Abstract: A method for reinforcing soft ground by post-grouting combined with pressurized vacuum preloading is proposed, by pre-burying prefabricated vertical drains and air-boosted pipes in granular material piles, and the air-boosted pipes are used as grouting pipes to reduce the number of times of piling, which not only improves the construction efficiency, but also reduces the structural disturbance of the soil and the influence of smear effect, thus reducing the impact on the radial permeability and the radial consolidation coefficients. The method does not use geotextile bags for granular materials, which can avoid the problem of forming a localized clogging area around the geotextile bags, and the method not only improves the efficiency of vacuum transfer in a pre-consolidation stage, but also improves the grouting effect in the later stage, effectively enhances the strength of soft soil and makes granular material piles and the surrounding soil form composite ground.

Abstract: The present disclosure provides a Bifidobacterium lactis (B. lactis) strain XLTG11 and a use thereof. The strain belongs to Bifidobacterium lactis. The B. lactis strain XLTG11 was deposited in the China General Microbiological Culture Collection Center (CGMCC) on Oct. 25, 2019, with a taxonomic name of Bifidobacterium lactis XLTG11 and an accession number of CGMCC No. 18738. The B. lactis strain XLTG11 provided by the present disclosure can regulate an inflammatory cytokine, improve an intestinal barrier function, and modulate an intestinal flora by inhibiting the activation of a TLR4/MYD88/NF-?B signaling pathway, thereby alleviating dextran sulfate sodium (DSS)-induced colitis. In addition, the B. lactis strain XLTG11 has an immune-enhancing effect on a cyclophosphamide (CTX)-induced mouse immunosuppression model.

Abstract: The present disclosure relates to the technical field of lithium ion battery, and discloses a Lithium-Manganese-rich material and a preparation method and a use thereof.

Abstract: This application provides a battery protection circuit, a battery protection board, a battery, and a terminal device. The battery protection circuit includes: a first detection unit; a second detection unit; and a current detection element, a first switch unit, and a second switch unit that are configured to connect to an electrochemical cell in series, to form a charging loop or a discharging loop. The first detection unit corresponds to the first switch unit, and the second detection unit corresponds to the second switch unit. Each detection unit controls, based on a detected voltage at two ends of the same current detection element, a corresponding switch unit to be closed or opened, so as to control the loop to be closed or opened.

Abstract: An Android penetration method and device for implementing silent installation based on accessibility services. The method includes: acquiring a second target application by adding a load program to a first target application and adding penetration permissions using an Android decompilation technology; and implementing silent installation of the second target application using an accessibility service technology.

Abstract: The present invention discloses a same-cavity integrated vertical high-speed multistage superfine pulverizing device and method for walnut shells. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells includes a double-channel sliding type feeding device and a same-cavity integrated vertical pulverizing device. The same-cavity integrated vertical pulverizing device includes a material lifting disc and a same-cavity integrated vertical pulverizing barrel. A first-stage coarse crushing region, a second-stage fine crushing region, a third-stage pneumatic impact micro pulverizing region and a fourth-stage airflow mill superfine pulverizing region are disposed in the same-cavity integrated vertical pulverizing barrel.

Abstract: A multi-procedure integrated automatic production line for hard alloy blades under robot control is provided. The production line includes a rail-guided robot. A cutter passivation device and a blade cleaning and drying device are arranged on one side of the rail-guided robot. A blade-coating transfer table, a blade coating device, a blade boxing transfer table, a blade-tooling dismounting device and a blade boxing device are sequentially arranged on another side of the rail-guided robot. The blade-tooling dismounting device is arranged on one side of the blade boxing transfer table. The production line further includes squirrel-cage toolings for carrying the blades. The squirrel-cage tooling that are loaded with the blades can run among the cutter passivation device, the blade cleaning and drying device, the blade-coating transfer table and the blade boxing transfer table. The blades after being treated through the blade-tooling dismounting device are sent to the blade boxing device.

Abstract: A single crystal multi-element positive electrode material and a preparation method therefor, and a lithium ion battery. The ratio of the length of the longest diagonal line to the length of the shortest diagonal line of the single crystal particles of the single crystal multi-element positive electrode material measured by an SEM is roundness R, and R?1; and D10, D50 and D90 of the single crystal particles of the single crystal multi-element positive electrode material satisfy: K90=(D90?D10)/D50, and the product of K90 and R is 1.20-1.40. The single crystal multi-element positive electrode material is more round and regular in morphology, the single crystal particles have uniform size, less agglomeration and less adhesion. The material has the characteristics of high compaction density, good rate capability and excellent cycle performance.

Abstract: The present disclosure relates to a copolymer A, which has (i) at least one repeating unit carrying an amide group and a carboxyl and/or its ammonium salt, (ii) at least one repeating unit derived from linear or branched C2-C18 ?-monoolefin, and (iii) at least one repeating unit derived from a monomer having at least two carbon-carbon unsaturated double bonds. The present disclosure also relates to an article comprising a component formed from the adhesive of the present invention.

Abstract: Integrated circuit dies, apparatuses, systems, and techniques, are described herein related to low and ultra-low threshold voltage transistor cells. A first transistor cell includes separate semiconductor bodies contacted by separate gate electrodes having a dielectric material therebetween. A second transistor cell includes separate semiconductor bodies contacted by a shared gate electrode that couples to both semiconductor bodies. Transistors of the second transistor cell may be operated at a lower threshold voltage than those of the first transistor cell due to increased strain on the semiconductor bodies from the shared gate electrode.

Abstract: Disclosed are a Nested Named Entity Recognition method based on part-of-speech awareness, system, device and storage medium therefor. The method uses a BiLSTM model to extract a feature of text word data in order to obtain a text word depth feature, and each text word of text to be recognized is initialized into a corresponding graph node, and a text heterogeneous graph of the text to be recognized is constructed according to a preset part-of-speech path, the text word data of the graph nodes is updated by an attention mechanism, and the features of all graph nodes of the text heterogeneous graph are extracted using the BiLSTM model, and a nested named entity recognition result is obtained after decoding and annotating. The present disclosure can recognize ordinary entities and nested entities accurately and effectively, and enhance the performance and advantages of the nested named entity recognition model.

Abstract: An automobile hub fixture includes a fixture body and a positioning apparatus. The fixture body includes a fixed platform and a plurality of clamping claws arranged at intervals in a circumferential direction of the fixed platform. The clamping claws are configured to clamp an outer rim of a hub. The plurality of clamping claws are connected to a driving member by using a linkage, and the driving member drives the clamping claws to radially move along the fixed platform. The positioning apparatus includes a movable platform slidably connected to the clamping claws. A positioning module configured to position an inner rim or the outer rim of the hub is mounted to the movable platform. The machining device includes a fixture, a machine tool, and a minimal quantity lubrication apparatus. The production line includes a machining device, a loading system, a loading and unloading manipulator, and a catching table.

Abstract: A drilling tool includes an outer cylinder; a power rotary shaft arranged in an inner chamber of the outer cylinder; a percussion generator arranged below the power rotary shaft, having a transmission shaft extending in the outer cylinder and can be driven by the power rotary shaft to rotate around its axis, an output main shaft engaged with a lower end of the transmission shaft so as to be driven by the transmission shaft to rotate about its axis and is movable relative to the transmission shaft along an axial direction, and an percussion assembly The percussion assembly is arranged between an annulus formed between the upper end of the output main shaft and the outer cylinder and can generate reciprocating impact along the axial direction on the output main shaft. A drilling bit connected with the output main shaft extending out of the inner chamber of the outer cylinder.

Abstract: Methods for fabricating an integrated circuit (IC) device with a protection liner between doped semiconductor regions are provided. An example IC device includes a channel material having a first face and a second face opposite the first face, a first doped region and a second doped region in the channel material, extending from the second face towards the first face by a first distance; and an insulator structure in a portion of the channel material between the first and second doped regions, the insulator structure extending from the second face towards the first face by a second distance greater than the first distance. The insulator structure includes a first portion between the second face and the first distance and a second portion between first distance and the second distance. The insulator structure includes a liner material on sidewalls of the first portion but absent on sidewalls of the second portion.

Abstract: The present invention relates to a powder dry-pressing molding device and method.

Abstract: A method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts, the method including: (1) mixing a first straw, seeding sludge and distilled water, and then carrying out anaerobic fermentation to obtain a mixed product after fermentation; (2) performing separation on the mixed product to obtain a second straw and biogas slurry; and (3) carbonizing the second straw to obtain biochar, and collecting gas after a pressurized catalytic reaction on the biogas slurry to obtain hydrogen.

Abstract: The present disclosure relates to the technical field of Internet, in particular to a method for measuring network international outlet interfaces of a designated area. The method includes the following steps: acquiring a designated collection of routing interface paths and area location information of IP addresses of routing interface nodes; dividing the collected routing interface paths into critical hop complete paths and critical hop missing paths; determining whether a routing interface path is a critical hop complete path; using a 2-tuple to identify network international outlet interfaces of the routing interface path; and counting the quantity of the network international outlet interfaces of the measured area.

Abstract: A detection circuit, a driving circuit, and a display panel and a driving method therefor are provided. The detection circuit includes an acquisition circuit and a processing circuit. The acquisition circuit includes a test transistor and an energy storage element, where, for the test transistor, a control end is configured to be coupled to the data signal terminal, a first end is configured to be written with a detection signal, and a second end is coupled to the energy storage element; and a structural characteristic of the test transistor is identical to a structural characteristic of the driving transistor. The processing circuit is coupled to the second end of the test transistor, and configured to detect a voltage at the second end of the test transistor as a detection voltage and regulate the data signal according to the detection voltage.

Abstract: A method and system for predicting dynamic fluid flow in a water-wet porous medium by one or more central processing units (CPUs), comprising generating a set of possible movements of displacement fronts within a set of pore elements within a pore-network representation of a porous media or rough-walled fracture sample, based on the set of possible movements, generating pressure fields for each of the set of possible movements, based on the pressure fields, determining a highest displacement potential for the set of possible movements, and performing a displacement based on the highest displacement potential.