Abstract: A data writing method includes determining first data to be written into a circular storage queue; obtaining a global write pointer of the circular storage queue, where the circular storage queue includes a plurality of storage areas, each storage area includes a plurality of subareas, and the global write pointer points to a first storage area of the plurality of storage areas; obtaining a first write pointer of the first storage area, and determining a size of allocated space in the first storage area based on the first write pointer of the first storage area; if the size of the allocated space in the first storage area is less than a size of space of the first storage area, performing an FAA operation on the first storage area, to allocate a first subarea in the first storage area; and writing the first data into the first subarea.

Abstract: A sequence time window amplitude-phase-frequency characteristics analysis method and system for underwater vehicle power frequency electromagnetic field disturbance are provided. The method includes: establishing a power grid dipole group model, emulating and calculating to obtain background field intensity data of a test location, and constructing an emulated background field database; acquiring measured background field data, comparing the emulated data with the measured data, and providing a relative error; calculating a background field intensity and underwater vehicle target disturbance under the action of the above dipole group, and establishing a measured target signal database; and performing actual measurement according to an underwater vehicle motion and detection topology, performing a Fourier transform and Fourier sliding window decomposition after acquiring original data, and acquiring an amplitude spectrum and a spectrogram of an underwater vehicle target disturbance signal.

Abstract: A lateral power semiconductor device layout and a device structure belong to the technical field of power semiconductor devices. A method for designing a lateral power semiconductor device layout with high integrity and high cell density has the following advantages of reducing a specific on-resistance of the device, increasing a width of a channel per unit area, improving the current capability of the device, optimizing the static characteristic of the device, reducing the area of a drain region and the parasitic capacitance of the device, reducing the delay time of a cell switch caused by an excessively long gate electrode of a traditional finger cell, optimizing the dynamic characteristic of the device, optimizing the cell edge of the device and the curvature effect of a terminal, and reducing the pre-breakdown risk of the device.

Abstract: Methods, devices, and computer-readable media of task execution based on a knowledge graph obtained by entity alignment are provided. In one aspect, a method includes: obtaining a knowledge graph pair including a first knowledge graph and a second knowledge graph, selecting a target entity by filtering entities in the first knowledge graph, determining a centrality and an uncertainty of the target entity based on the target entity, an entity corresponding to a neighboring node, and entities in the second knowledge graph, constructing a sample entity pair based on the centrality and the uncertainty of the target entity, training a to-be-trained entity alignment model using the sample entity pair, performing entity alignment on to-be-aligned knowledge graphs according to the trained entity alignment model to obtain a merged knowledge graph, and executing a target task based on the merged knowledge graph.

Abstract: The present invention provides a preparation method of (5-fluoro-2,3-dihydrobenzofuran-4-yl)methylamine or a salt thereof, which uses 4-fluoro-3-methylphenol as the starting material, and is carried out through the steps of bromination, O-alkylation, cyclization, bromination, azidation or ammonolysis, and reduction. The reaction route of the present invention has simple synthesis process, convenient operation, high yield, and is environmentally friendly. The prepared (5-fluoro-2,3-dihydrobenzofuran-4-yl)methylamine can be used as an intermediate in pharmaceuticals and fine chemicals.

Abstract: A method includes providing a library of hardware-agnostic packet-processing functions. A functional hardware-agnostic specification of a packet-processing pipeline is received from a user. The specification is defined in terms of one or more of the packet-processing functions drawn from the library. A hardware-specific design of the packet-processing pipeline, which is suited to given hardware, is derived from the specification.

Abstract: A photoelectric hydrogen production energy storage and cold energy recovery coupled dry ice production device and a use method are disclosed. The device comprises a photoelectric conversion liquid hydrogen energy storage unit, photoelectricity participates in electrolysis of water in the storage unit to prepare hydrogen, and surplus hydrogen meeting downstream process requirements is liquefied in the unit; liquid hydrogen is output, so that intermittent photoelectric energy is converted into hydrogen energy to be stored. When hydrogen production through electrolysis of water is insufficient but industrial hydrogen is continuously used, high-grade and low-grade cold energy of low-temperature liquid hydrogen serving as cold sources in the unit is recovered from industrial tail gas purified CO2 and air separation nitrogen, liquid nitrogen and liquid CO2 are output and used for the storage unit and dry ice production respectively, and the liquid hydrogen is reheated and supplied to a downstream process.

Abstract: A method and system for strategically solving an innovative design problem are provided. A target analysis tool is determined according to a to-be-solved problem. An initial model is generated based on the target analysis tool. A target model is determined according to an interaction relationship among elements in the initial model and the target analysis tool. A problem characterization result of the target model is generated according to a preset interaction relationship. Retrieval information is generated according to the problem characterization result, based on which the retrieval is performed in a preset database to obtain target data. Different analysis tools can be used to analyze different to-be-solved problems. The retrieval is performed based on the problem characterization result to obtain the solution to the to-be-solved problem.

Abstract: A lateral power semiconductor device is provided and includes a second doping type substrate, a first doping type buried layer, a second doping type epitaxial layer, a first doping type drift area, a second doping type first body area, a first doping type drain area, a first doping type source area, a second doping type second body area, a dielectric layer, a control gate, a body electrode, second doping type polysilicon and first doping type polysilicon. The control gate is led out and connected to different potentials; when the device is in an off state, the control gate is connected to a low potential to assist the drift area in depletion; and when the device is in an on state, the control gate is connected to a high potential, and more carriers are induced on a silicon surface below the control gate.

Abstract: A double-sided ultrasonic rolling cooperative strengthening system and a control method thereof are provided. The system includes a first mechanical arm subsystem, a second mechanical arm subsystem, a first ultrasonic rolling strengthening subsystem, a second ultrasonic rolling strengthening subsystem and a servo turntable (13); the servo turntable (13) is configured to fix a blade to be processed; the first ultrasonic rolling strengthening subsystem is provided at an end of the first mechanical arm subsystem; and the second ultrasonic rolling strengthening subsystem is provided at an end of the second mechanical arm subsystem.

Abstract: A method for conditioning advanced anaerobic digestion sludge by deep dehydration based on particle size control, the use thereof and a floc particle. The method for conditioning advanced anaerobic digestion sludge by deep dehydration comprises: (1) uniformly mixing advanced anaerobic digestion sludge with a first cationic organic flocculant to obtain non-hard muddy flocculated particles; (2) uniformly mixing the muddy flocculated particles with aggregate; (3) uniformly mixing the resulting mixture with inorganic agent; (4) adjusting the particle size of the floc particles using second organic flocculant; and (5) performing plate-frame dehydration so as to reduce the moisture content to 60% or less. In the method, by means of the combination of organic flocculation nucleation with a particle size skeleton, the use amount of the inorganic agent is effectively reduced, such that the conductivity of the mud cake is reduced, facilitating the landscaping utilization, incineration disposal etc.

Abstract: The present disclosure belongs to the technical field of sludge treatment, and discloses a sludge and kitchen waste collaborative digestion process coupled with intermediate thermal hydrolysis. The collaborative digestion process includes: 1) screening and slurrying kitchen waste, and desanding and deslagging primary sludge; 2) mixing the kitchen waste and the primary sludge, and carrying out first-stage collaborative anaerobic digestion on the mixture; 3) mixing the first-stage collaborative anaerobic digestion product with residual activated sludge, and carrying out centrifugal dehydration; 4) carrying out thermal hydrolysis on the dehydrated sludge cake; 5) desanding the thermally-hydrolyzed sludge; 6) diluting the desanded thermally-hydrolyzed sludge followed by heat exchange; 7) carrying out second-stage anaerobic digestion; 8) carrying out plate-frame dehydration; 9) carrying out anaerobic ammonia oxidation on the filtrates; and 10) compounding sludge cake nutrients to produce organic nutrient soil.

Abstract: A method and system for strategically solving an innovative design problem are provided. A target analysis tool is determined according to a to-be-solved problem. An initial model is generated based on the target analysis tool. A target model is determined according to an interaction relationship among elements in the initial model and the target analysis tool. A problem characterization result of the target model is generated according to a preset interaction relationship. Retrieval information is generated according to the problem characterization result, based on which the retrieval is performed in a preset database to obtain target data. Different analysis tools can be used to analyze different to-be-solved problems. The retrieval is performed based on the problem characterization result to obtain the solution to the to-be-solved problem.

Abstract: A method and system for multi-participant based conceptual design information modeling. The method includes the following steps. Initial design information generated by a plurality of design participants involved in different design stages during conceptual design of a target product is acquired. The initial design information is screened to obtain target design information in a target carrier form according to a carrier form corresponding to the initial design information. Subject information is extracted from the target design information. Based on a plurality of visualized forms under a plurality of dimensions, a plurality of visualized views of the subject information are generated under the plurality of dimension. A visualized view corresponding to a display authority of a design participant is displayed on the graphical user interface. The design participant can modify the design information based on the visualized view to obtain a target design information model.

Abstract: A device may include a first waveguide with an optical input at a first port. A device may include a second waveguide. A device may include a first coupler that optically couples the first waveguide to the second waveguide at a first position. A device may include a waveguide delay arm. A device may include a second coupler that optically couples the first waveguide to the second waveguide at a second position, the second position different from the first position.

Abstract: Systems and methods for fast switchable optical filters with high extinction ratio are described. The fast switchable and high extinction ratio optical filters can be based on coupled ultra-high quality factor resonators that are actuated using stress-optical actuators.

Abstract: A double-sided ultrasonic rolling cooperative strengthening system and a control method thereof are provided. The system includes a first mechanical arm subsystem, a second mechanical arm subsystem, a first ultrasonic rolling strengthening subsystem, a second ultrasonic rolling strengthening subsystem and a servo turntable (13); the servo turntable (13) is configured to fix a blade to be processed; the first ultrasonic rolling strengthening subsystem is provided at an end of the first mechanical arm subsystem; and the second ultrasonic rolling strengthening subsystem is provided at an end of the second mechanical arm subsystem.

Abstract: Systems and methods for photonic integrated laser stabilization that implements one stress-optic modulators in a Pound-Drever-Hall configuration without the complexity or power consumption and loss tradeoffs of conventional bulky acousto-optic modulator (AOM) frequency shifters and electro-optic modulator (EOM) phase modulators are described.

Abstract: The present invention discloses an electromagnetic wave spatial analysis method based on multi-level dipole group modeling.

Abstract: Disclosed herein is a stress optical modulator. The modulator include a circular piezo-electric actuator; and a ring waveguide separated from the circular piezo-electric actuator by a top cladding layer. The circular piezo-electric actuator may be offset from the ring waveguide such that a first circular portion of the circular piezo-electric actuator is located on the outside of the ring waveguide and a second circular portion of the circular piezo-electric actuator is located on the inside of the ring waveguide. The circular piezo-electric actuator may be configured to change the guiding properties of the ring waveguide based on the voltage applied to the circular piezo-electric actuator by inducing strain through the top cladding layer to change the optical properties of the ring waveguide.