Abstract: A low-frequency multiferroic mechanical antenna amplified with a multifunctional metamaterial beam is provided, relating to the technical field of antennas. The array includes multiple unit arrays each consisting of a strong-hysteresis piezomagnetic layer, a high-magnetic-permeability piezomagnetic film unit, and a piezoelectric layer, a grid-shaped shuttle composite beam with variable stiffness that is composed of a first elastic substrate, a flexible piezoelectric material PVDF layer, and a second elastic substrate, a permanent magnet, an energy harvesting circuit, and a negative resistance circuit.

Abstract: The present disclosure provides a touchscreen having a bending region. A touch layer is disposed in the bending region, a grid line is arranged at the touch layer, a plurality of channels for disconnecting the grid line are further disposed at the touch layer, the plurality of channels divide the grid line into a plurality of electrode regions, a grid line between any two adjacent electrode regions forms a fracture at a channel, and a width of the fracture is greater than or equal to 8 ?m.

Abstract: An example computer-implemented method for solving a combinatorial optimization problem includes: receiving a combinatorial optimization problem input by a user; mapping the combinatorial optimization problem to a spin model, where the spin model includes a to-be-solved complex variable and an objective function, and the objective function describes permutation and combination of a plurality of things under a given constraint condition; determining a dynamic equation in a complex number field, where the dynamic equation describes a time-based evolution process of the to-be-solved complex variable, and the dynamic equation includes at least a control variable, a multi-bifurcation parameter, and an action parameter; solving the dynamic equation, and obtaining q stable phases of the to-be-solved complex variable by changing a value of the control variable, where a value of q is determined by the multi-bifurcation parameter; and obtaining a solution to the combinatorial optimization problem based on the q stable

Abstract: A 3D stacked packaging structure and a manufacturing method thereof are provided. The 3D stacked packaging structure includes a bottom-layer structure and a top-layer structure stacked thereon. The bottom-layer structure and the top-layer structure each include: a substrate layer; a diamond layer grown on the substrate layer; an ion-implanted silicon wafer layer attached to the diamond layer; and a component layer provided on the silicon wafer layer, with the four layers stacked together in sequence, wherein the substrate layer of the top-layer structure is in contact with the component layer of the bottom-layer structure, and at least one through hole provided between the bottom-layer structure and the top-layer structure, extends through the component layer, the ion-implanted silicon wafer layer, the diamond layer, and the substrate layer of the top-layer structure, and extends through the component layer of the bottom-layer structure, and is filled with a conductive material.

Abstract: Provided is a connector structure of a stepless capacity control actuator of a reciprocating compressor including an ejector rod configured to transfer power provided by a driving structure to an unloader. The connector structure includes a housing sleeving the ejector rod, a connecting member including a flange part and a sleeve part, and a sealing assembly including a first end face sealing ring, a second end face sealing ring, a first seal ring and an oil leakage joint. A first side of the flange part is connected with a second end of the housing and a second side of the flange part is configured to connect with the driving structure. A second oil hole is formed in the sleeve part and in butt joint with a first oil hole. The oil leakage joint is connected to the first oil hole.

Abstract: A distributed digital certificate implementation is described. Each of n participants generates a respective threshold private key share based on a distributed key generation protocol. Each of at least t+1 of the n participants generates a random value based on an offline-phase protocol. Each of the at least t+1 participants receives a certificate application, and generates a certificate share by signing application information in the certificate application based on an online-phase protocol, the threshold private key share, and the random value generated based on the offline-phase protocol. Any party aggregates at least t+1 signature shares into a total certificate after obtaining the at least t+1 certificate shares.

Abstract: An experimental testing system and method for a wellbore pressure during a well killing process under a complex working condition are provided. The experimental testing system includes a target high-pressure formation simulation device, a wellbore, a drilling string, a blowout preventer, a drilling fluid reservoir, a kill fluid reservoir, a mud mixing pit, a mud pump, a high-pressure gas storage tank, a drilling tool lifting device, a three-way connector, a water hose, a data receiving terminal, and a drilling bit. The embodiments of the present disclosure may predict the wellbore pressure during the well killing process by combining a variety of conditions and simulating the well killing manners under different complex conditions.

Abstract: A method for preventing or treating atherosclerosis or atherosclerosis-related diseases in an individual in need thereof, comprising administering to the individual a therapeutically effective amount of sDSS1 protein or a fragment or variant thereof, a nucleic acid encoding the sDSS1 protein or a fragment or variant thereof or a vector containing the nucleic acid, transplanting into the individual with a cell expressing the sDSST protein or a fragment or variant thereof, or tissues or organs containing the sDSS1 protein or a fragment or variant thereof or the nucleic acid, and/or infusing into the individual serum or interstitial fluid containing the sDSS1 protein or a fragment or variant thereof or the nucleic acid.

Abstract: The present invention relates to production method for nanoparticles used for light valves of different colors, light valves of different colors and application thereof. The light values comprise: a first transparent substrate, a first transparent conductive layer, a light modulating layer, a second transparent conductive layer and a second transparent substrate, the light modulating layer comprises a dispersion liquid and a nanoparticle dispersed-phase dispersed in the dispersion liquid; The tinted states of the light valve are displayed as multiple different colors in the visible spectral region, the bright state is colorless and transparent, and the multiple different colors of the light valve are realized by mixing nanoparticles of same or different color to form a mixture in the form of the nanoparticle dispersed-phase.

Abstract: The present application provides a large-area perovskite layer and a preparation method thereof. The preparation method includes: dissolving raw materials of a perovskite in an ionic liquid or in a mixture of the ionic liquid and an organic solvent, thereby forming a perovskite precursor, and coating the perovskite precursor onto a surface of a crystalline silicon bottom cell, thereby forming the perovskite layer.

Abstract: The present disclosure provides a novel polypeptide. Also provided is an ophthalmic composition for treating or preventing dry eye (DE) or DE associated disorders. Also provided is a method for treating or preventing DE or DE associated disorders, stimulating tears, stabilizing tear film or any combination thereof in a subject in need thereof, comprising administering to the subject an effective amount of the novel peptides. Also provided is a contact lenses care product comprising the novel peptides and the preparation method thereof.

Abstract: Provided are a chip fine line fan-out package structure and a manufacturing method therefor. The chip fine line fan-out package structure provided and the chip fine line fan-out package structure manufactured using the manufacturing method each include an inter-chip fine wiring layer and a package wiring layer. The line width and line spacing of the inter-chip fine wiring layer are less than the line width and line spacing of the package wiring layer, and therefore, a user can choose to use different package wiring layers according to actual needs. Therefore, the chip fine line fan-out package structure and the package structure manufactured using the manufacturing method can meet the use demands of users in more scenarios.

Abstract: The present disclosure provides a solar cell and a method for preparing the same. The solar cell includes a semiconductor substrate, a first heavily doped layer, a front electrode, an emitter layer, and a back electrode. The first heavily doped layer and the front electrode are disposed on the front surface of the semiconductor substrate. The first heavily doped layer is disposed between the front electrode and the semiconductor substrate. The emitter layer is disposed between the back electrode and the semiconductor substrate.

Abstract: The present disclosure provides analgesic peptides. Also provided is a formulation comprising any one of the analgesic peptides and a pharmaceutically acceptable excipient. Also provided is a method for treating or preventing pain in a subject in need thereof, comprising administering to the subject an effective amount of any one of the analgesic peptides.

Abstract: The present application discloses a method, system and medium of adding additional information to a LC3 audio code stream. The method comprises: obtaining unused bit space in a LC3 audio encoding process, including: obtaining an single-bit unused space of a current encoding frame in the LC3 audio encoding process, wherein the single-bit unused space is a difference value between an estimate length of a residual encoded bit and an actual length of the residual encoded bit of the current encoding frame in the LC3 audio encoding process; obtaining an multiple-bit unused space of the current encoding frame in the LC3 audio encoding process, wherein the multiple-bit unused space is an unused residual space of the current encoding frame in the LC3 audio encoding process; and adding additional information in the LC3 audio encoding process into the unused bit space, so as to be encoded.

Abstract: A distributed data storage method includes obtaining a log, where the log indicates N pieces of data used in M historical tasks executed by a server cluster, M is a positive integer, and the N pieces of data are stored in the server cluster in a distributed manner; determining intimacy between the N pieces of data based on the log, where intimacy corresponding to any two of the N pieces of data indicates a possibility that the two pieces of data are used in a same task, and N is an integer greater than 1; and updating storage locations of the N pieces of data based on the intimacy between the N pieces of data.

Abstract: A strain of Yarrowia lipolytica has a deposit number of GDMCC No: 60782, and has been deposited on Sep. 20, 2019, in Guangdong Microbial Culture Collection Center located at Guangdong Institute of Microbiology, 5th Floor, Building 59, No. 100 Xianliezhong Road, Guangzhou City. A low-sugar and low-fat nutritional powder of desiccated coconut is prepared by: mixing a desiccated coconut with water, and heating; then pulping the heat-treated desiccated coconut, homogenizing an obtained coconut milk, adjusting a pH value, and sterilizing, to obtain a desiccated coconut suspension; inoculating a culture solution of the Yarrowia lipolytica in the desiccated coconut suspension after being cooled, and fermenting; and sterilizing an obtained fermentation broth, spray drying, and pulverizing, to obtain the low-sugar and low-fat nutritional powder of desiccated coconut.

Abstract: A vehicle closure structure (such as a liftgate door, trunk door, frunk door, vehicle hood or the like); which requires a mechanical reinforcement of an area (such as a door latch, hinge, lift cylinder, spoiler attachment or the like). The closure has at least one thermoplastic or thermoset boss which is extending through an orifice in a support member which is ultrasonically mushroom welded for securing the support member to the vehicle closure structure.

Abstract: The present disclosure provides a data processing method and apparatus, an electronic device, a storage medium, and a program product. The data processing method includes: displaying a first window at a first position of a first document in response to receiving a triggering operation on a first control in the first document, wherein the first window includes an approval flow list; and displaying approval flow information of a first approval flow at the first position of the first document in response to receiving a selection operation on the first approval flow in the approval flow list.