Abstract: A tapered fiber optoacoustic emitter includes a nanosecond laser configured to emit laser pulses and an optic fiber. The optic fiber includes a tip configured to guide the laser pulses. The tip has a coating including a diffusion layer and a thermal expansion layer, wherein the diffusion layer includes epoxy and zinc oxide nanoparticles configured to diffuse the light while restricting localized heating. The thermal expansion layer includes carbon nanotubes (CNTs) and Polydimethylsiloxane (PDMS) configured to convert the laser pulses to generate ultrasound. The frequency of the ultrasound is tuned with a thickness of the diffusion layer and a CNT concentration of the expansion layer.

Abstract: The present disclosure provides an information processing method and apparatus, a terminal, and a storage medium. The information processing method comprises: receiving input topic information and sending the topic information to a server; displaying the topic information in a preset topic format on a session interface of a session group, the preset topic format having a reply area; receiving reply information used for replying to the topic information; and displaying the reply information in the reply area of the topic information. According to the method of the present disclosure, information is displayed in the form of topic information and reply information, and reply information corresponding to the same topic is displayed corresponding to the same topic information, such that the display mode of information is more reasonable, and a user can conveniently and quickly find information of interest.

Abstract: A distributed quantum computing simulation method and apparatus. The method includes: converting a quantum circuit to be simulated into a tensor network that is represented by an undirected graph, and segmenting the undirected graph into a plurality of sub-graphs by using a genetic algorithm that is based on operation resources of a distributed system; respectively performing, on sub-process nodes, tensor contraction and merging on the plurality of sub-graphs for connected tensors until only one tensor is left to finally obtain zero-order tensors of the plurality of sub-graphs at the same time; and acquiring and superposing the zero-order tensors of the plurality of sub-graphs from the sub-process nodes at the same time to determine a zero-order tensor of the undirected graph, and using the zero-order tensor of the undirected graph as a probability amplitude of a positive operator value measurement element, so as to perform quantum computing simulation.

Abstract: An optical module includes a housing, a plurality of active optical components and a path changer component. The housing has an airtight chamber. The active optical components are provided in the airtight chamber. The path changer component is provided in the airtight chamber, and the path changer component is configured to change an optical path of at least one of the active optical components.

Abstract: The technology of this application relates to an artificial intelligence terminal-based image detection method and apparatus, and an electronic device. The method includes obtaining a to-be-detected image, determining a light source region of the to-be-detected image and a foreground region of the to-be-detected image, and determining a blurring degree of the to-be-detected image based on the light source region and the foreground region. Impact of a light source on clarity of the to-be-detected image is determined by performing light source region detection and foreground region detection on the to-be-detected image, to effectively detect whether an image shot in a backlight condition is blurred.

Abstract: Described herein is a manufacturing method of a magnetic particle. First, deionized water, an organic solvent, a hydrophilic polymer, a lipid-soluble initiator, and at least two monomers are placed in a reactor and then stirred for polymerizing the at least two monomers into a copolymer to form a knobby copolymer core. Next, a polymer layer is formed to cover the knobby copolymer core, wherein the polymer layer has at least one functional group. Thereafter, a magnetic substance precursor is adsorbed by the knobby copolymer core covered with the polymer layer to form a magnetic substance layer. Further, a silicon-based layer may be additionally formed to cover the magnetic substance layer.

Abstract: Provided are a method and apparatus for measuring the quantum decoherence degree, an electronic device and a computer-readable storage medium. The method includes: determining an initial quantum state and a point to be measured of a quantum system to be measured (S101); amplifying the amplitude of the quantum state of the point to be measured, and measuring a decoherence degree of the point to be measured (S102); and calculating a decoherence coefficient of the quantum system to be measured according to the decoherence degree (S103). According to the method for measuring the quantum decoherence degree, the amplitude of the quantum state of the point to be measured in the quantum system to be measured is amplified, and the probability of the point to be measured is obtained by means of measurement, so as to measure the decoherence degree of the point to be measured.

Abstract: A method for controlling a critical dimension of a mask layer is described. The method includes receiving a first primary parameter level, a second primary parameter level, a first secondary parameter level, a second secondary parameter level, and a third secondary parameter level. The method also includes generating a primary signal having the first primary parameter level, and transitioning the primary signal from the first primary parameter level to the second primary parameter level. The method further includes generating a secondary radio frequency (RF) signal having the first secondary parameter level, and transitioning the secondary RF signal from the first secondary parameter level to the second secondary parameter level. The method includes transitioning the secondary RF signal from the second secondary parameter level to the third secondary parameter level.

Abstract: System and methods to control resource distribution to fields are provided. A data processing system can identify a plurality of zones of the field, and can receive, from a client computing device, registration information of a node. The registration information can correlate the node with a zone of the field. The data processing system can obtain, via a gateway device and from the node, a first data file including field metric data and a second data file including third party data that pertains to the field. The data processing system can determine a resource distribution schedule based at least in part on data of the first data file and data of the second data file. The data processing system can receive, via the gateway device, a prompt from the node, and can provide an instruction to control a valve to regulate resource distribution to a portion of the field.

Abstract: Computer technology for: (i) performing prefetching based on shard workload in NoSQL; and/or (ii) perform distribution of stored data over the various tiers of a cache memory based on shard workload in NoSQL. This can help achieve better load balance among and between the shards of a database and the respectively associated nodes on which the shards are stored.

Abstract: A frequency conversion power transmission system includes: a new energy power generation base, a first isolation device, a second isolation device, an alternating current-alternating current (AC-AC) frequency conversion device and a power transmission cable; the new energy power generation base is configured to supply electrical energy to an AC power grid, and operate at a constant voltage and a constant or variable frequency according to environmental conditions including weather, an environment or a distance; the first isolation device is connected to the new energy power generation base; the second isolation device is connected to the AC power grid; an input terminal of the AC-AC frequency conversion device is connected to the first isolation device, an output terminal of the AC-AC frequency conversion device is connected to the second isolation device, and the power transmission cable is configured to connect the new energy power generation base and the first isolation device.

Abstract: A system comprises a first comparator, a second comparator, a pulse-width modulation (PWM) controller, and a ramp generator. The first comparator has a positive input coupled to a first ramp output of the ramp generator and a negative input configured to receive an input voltage. The second comparator has a positive input configured to receive the input voltage and a negative input coupled to a second ramp output of the ramp generator. The PWM controller is coupled to outputs and control signal inputs of the first and second comparators and has a control output. In some implementations, the ramp generator generates a high-side falling ramp for the first comparator and a low-side rising ramp for the second comparator. In some implementations, the ramp generator includes a first ramp generator for the high-side falling ramp and a second ramp for the low-side rising ramp.

Abstract: A multicomponent FeCoSiM soft magnetic alloy is provided. M of the alloy is one or more of V, Cr and Ni. A sum of atomic percentages of alloy elements in the alloy is 100%. The atomic percents of the alloy elements meet the following conditions: Fe, 68˜78 at %; Co, 4˜12 at %; Si, 14˜18 at %; V, 0˜4 at %; Cr, 0˜4 at %; and Ni, 0˜4 at %. The preparation method of the alloy includes weighing raw materials according to the atomic percentages of the alloy elements and then performing melting and annealing heat treatment each in vacuum or a protective atmosphere. The alloy is obtained by a reasonable design of compositions and contents. A magnetocrystalline anisotropy constant of the alloy is low, a magnetostrictive coefficient of the alloy approaches zero and the alloy has characteristics of high saturation flux density and low coercivity.

Abstract: A silicon carbide-based micro-electro-mechanical system (MEMS) combined temperature-pressure sensor chip and a preparation thereof. The chip includes a peripheric pressure-measuring unit and a center temperature-measuring unit. The pressure-measuring unit includes a silicon carbide substrate with a raised island and a pressure sensitive diaphragm formed by etching the back of the substrate. The raised island and the pressure-sensitive diaphragm constitute a membrane-island structure. Four piezoresistive strips are arranged symmetrically along a circumferential direction of a root of the pressure-sensitive diaphragm and between the raised island and the pressure-sensitive diaphragm. The temperature-measuring unit includes the raised island and a thin-film thermocouple arranged thereon.

Abstract: A tapered fiber optoacoustic emitter includes a nanosecond laser configured to emit laser pulses and an optic fiber. The optic fiber includes a tip configured to guide the laser pulses. The tip has a coating including a diffusion layer and a thermal expansion layer, wherein the diffusion layer includes epoxy and zinc oxide nanoparticles configured to diffuse the light while restricting localized heating. The thermal expansion layer includes carbon nanotubes (CNTs) and Polydimethylsiloxane (PDMS) configured to convert the laser pulses to generate ultrasound. The frequency of the ultrasound is tuned with a thickness of the diffusion layer and a CNT concentration of the expansion layer.

Abstract: The invention “use of biomarker or biomarkers combination in preparing a diagnostic reagent for fulminant myocarditis and a drug for fulminant myocarditis” belongs to the field of disease diagnostic reagents and drugs. The biomarker comprises Siglec-5. The biomarkers combination is further selected from the group consisting of sST2, PAI-1, Siglec-5, CD163, CD40, P-Cadherin, CD14, CTLA4. The invention finds that the levels of the biomarker in plasma of patients with fulminant myocarditis is increased, and proves that the biomarker plays a role in diagnosing fulminant myocarditis and a role as a drug target in relieving and/or improving fulminant myocarditis. The level of the biomarker can be detected to forecast or auxiliary diagnose fulminant myocarditis or estimate prognosis of fulminant myocarditis. Meanwhile, level of the biomarkers is controlled through drugs, more intensified diagnosis and follow-up treatment can be carried out on diseases, and the biomarkers have huge clinical application value.

Abstract: A quantum data erasure method, system and device, and a readable storage medium. The method includes: acquiring an equal-probability quantum state system; measuring the equal-probability quantum state system to collapse the equal-probability quantum state system into a binary random number sequence; generating a corresponding random angle value according to the binary random number sequence; and performing a bitwise rotation operation on quantum data in a quantum device according to the random angle value to complete this quantum data erasure. In the present application, the introduction of a quantum true random number can ensure that erased data will not be recovered and reversely cracked, and is of great value in protecting data assets; moreover, randomly processed data still has the characteristics such as quantum coherence and quantum entanglement, and can be used in subsequent operations, whereby a time-consuming labor-intensive process of preparing a quantum system is not required every time.

Abstract: The present specification discloses video matching. In a computer-implemented method, a plurality of feature vectors of a target video is obtained. A candidate video similar to the target video is retrieved from a video database based on the plurality of feature vectors of the target video. A time domain similarity matrix feature map is constructed between the target video and the candidate video based on the target video and the candidate video. Using the time domain similarity matrix feature map as an input into a deep learning detection model, a video segment matching the target video in the candidate video and a corresponding similarity is output.

Abstract: Disclosed are antibodies binding to human IL-4R, having identical variable regions and different constant regions, wherein the variable regions can specifically bind to human IL-4R, and the constant regions affect the activity of the whole antibody through an amino acid site mutation. The above-mentioned antibodies can be used to treat diseases related to IL-4R overexpression, such as atopic dermatitis, asthma, etc., and thus possesses good clinical application prospects.

Abstract: A hemming path planning method and a hemming system are provided. The hemming path planning method includes the following steps. An initial contour data of a target is scanned to obtain. A first segment of the hemming path is planned according to the initial contour data. The first segment corresponds to a first bending angle. A second segment of the hemming path is planned according to the initial contour data and an expected springback amount related to the first bending angle. The second segment corresponds to a second bending angle. The first segment and the second segment are combined to obtain a continuous hemming path.