Abstract: A method for target detection based on a visible camera, an infrared camera, and a LiDAR is provided. The method designates visible light images, infrared images, and LiDAR point clouds, which are synchronously acquired, as inputs, and generates an input pseudo-point cloud using visible light images and infrared images, to realize alignment of multimodal information in a three-dimensional space and fusion feature extraction. Then the method adopts a cascade strategy to output more accurate target detection results step by step. In the present disclosure, different characteristics of multi-sensors are complemented, which improves and extends traditional target detection algorithms, improves the accuracy and robustness of target detection, and realizes multi-category target detection in a road scene.

Abstract: The present invention discloses a blood coagulation-promoting silk fibroin-polypeptide electrospun membrane and a preparation method thereof. The electrospun membrane is made by using silkworm silk fibroin as a carrier and adding the polypeptide GPRPPSEHLQIT. It is mainly used for promoting blood coagulation, and is a blood coagulation material that can targetedly bind to human fibrinogen. The preparation method includes the steps of dissolving, filtering, dialyzing, concentrating and freeze-drying silkworm cocoons after degumming to obtain silk fibroin freeze-dried powder. The polypeptide used in the present invention is a polypeptide obtained by self-screening. Compared with other polypeptides, it can specifically targetedly bind to human fibrinogen.

Abstract: A large-flux in-situ filtration device for marine microorganism based on a multi-channel circulation distributor is provided, comprising an energy and control module, a circulation distribution module, a filtration module, a pump module, a filtration volume measurement module, a pipeline connection, and a main body support frame. The circulation distribution module may include a multi-channel circulation distributor, a deep-sea servo motor, etc. The filtration module may include a plurality of filter film holders. The pump module may include a stainless steel gear pump, a deep-sea drive motor, etc. The filtration volume measurement module may include a water meter, a camera, and an LED light.

Abstract: This application discloses a quantum gate optimization method performed by a computer device. The method includes: obtaining an initialized control external field corresponding to a quantum gate; applying the control external field to a quantum bit (qubit) corresponding to the quantum gate, and acquiring actual measurement data of the quantum gate, the actual measurement data being used for reflecting an actual characteristic of the quantum gate; calculating a gradient corresponding to the control external field based on the actual measurement data and ideal data, the ideal data being used for reflecting an ideal characteristic of the quantum gate; and updating the control external field according to the gradient to obtain an updated control external field, the updated control external field being applied to the qubit corresponding to the quantum gate to optimize precision of the quantum gate. The method is a closed-loop optimization solution driven and implemented by data feedback.

Abstract: A method and a device for label-free all-optical neural regulation and imaging are provided. The method stimulates a neural activity through an infrared laser pulse, and acquires an optical scattered signal caused by the neural activity by optical coherence tomography (OCT) to realize label-free all-optical neural regulation and imaging. The method specifically includes: aiming an infrared laser at a target brain region, injecting a certain time series of laser pulses, synchronously scanning and imaging the target brain region by OCT, analyzing a relative change of an OCT scattered signal before and after laser stimulation, and acquiring a brain function signal based on OCT to realize synchronous neural regulation and imaging. The method and the device enable synchronous neural regulation and imaging without causing crosstalk between the regulation and imaging channels, and without the need for injection of a contrast agent or viral transfection.

Abstract: The present invention belongs to the technical field of electric automobiles and particularly relates to a fault tolerance decision-making method and system for sensor failure of a vehicular wheel hub driving system. The method comprises a current sensor failure diagnostic process, a position/velocity sensor failure diagnostic process and a selection process for a wheel hub motor fault tolerance control method. The system comprises a current sensor failure diagnostic module, a position/velocity sensor failure diagnostic module and a selection module for a wheel hub motor fault tolerance control method. The position/velocity sensor failure diagnostic module further comprises a fault tolerance control switching module.

Abstract: Disclosed in the present invention is a dual-rotor microfluidic energy capturing and power generating device based on a piezoelectric effect. An inner ring of blades and an outer ring of blades are coaxially and movably sleeved, and rotate relatively. Sheet-like magnetic piezoelectric components and steel magnets are provided in an annular gap between the inner ring of blades and the outer ring of blades. Magnetic piezoelectric components are connected to an inner peripheral surface of the outer ring of blades, the magnetic piezoelectric components are magnetically repulsive to the steel magnets, and the outer sides of the magnetic piezoelectric components are axially arranged. The inner ring of blades and the outer ring of blades rotate relatively to drive the magnetic piezoelectric components and the steel magnets to rotate relatively, and further drive the magnetic piezoelectric components to oscillate to generate mechanical energy which is then converted into electric energy.

Abstract: The present invention discloses a chromatographic analysis device based on a multifunctional integrated probe, and a use method of the chromatographic analysis device. The chromatographic analysis device integrates chromatographic sampling, sample injection and separation functions into the integrated probe. Meanwhile, the present invention further discloses a method for performing microsample analysis by the chromatographic analysis device based on the multifunctional integrated probe. The present invention has the main advantages as follows: the device is high in integration level, small in dead volume, simple in structure, convenient to use and particularly suitable for microsample analysis with a small sample amount, provides a new chromatographic sample injection mode for chromatographic analysis, and provides an ideal platform for chromatographic analysis and on-site chromatographic analysis of a trace amount of samples.

Abstract: A method for segmenting a power line image in real time based on self-supervised learning includes: inputting an input power line sample image and power line sample image mask set for the same batch of images into a region growing algorithm to obtain a single power line sub-image and single power line mask set; randomly extracting at least one single power line image pair for combination, and combining the single power line image pair with a random background picture to generate a power line random background fusion image and power line random background mask set; and carrying out random non-repetitive region growing to obtain image inpainting regions, forming a segmentation mask with the image inpainting regions, obtaining power line segmentation images through an image inpainting algorithm, inputting the power line segmentation images into a power line real-time segmentation network for training, and carrying out predicted segmentation.

Abstract: Disclosed in the present invention are a wireless power and data synchronous transfer system and a data modulation method, wherein a power/information complex modulation is carried out on a primary side front converter and a secondary side back converter, and output power/information flow can be transmitted across the wireless power transfer circuit, thus realizing communication between the primary side and the secondary side. With the method of the present invention, by modulating a digital frequency band signal to a direct current bus, frequency mixing effect of an inverter/rectifier circuit is utilized to move a spectrum of modulated digital signal to a frequency near a power transfer frequency and then the modulated digital signal is transmitted to a circuit on the other side, and the circuit on the other side demodulates the signal to obtain a baseband signal. The present invention has wide applicability and can be used in various wireless power transfer systems, especially for high-frequency systems.

Abstract: A pile foundation with an anti-impact structure for offshore wind power and a construction method thereof are provided. The anti-impact structure is sleeved on the pile foundation, and includes a first hoop, an impact absorption assembly and a second hoop. The impact absorption assembly includes a plurality of impact absorption rollers arranged around the pile foundation. Each of the impact absorption rollers includes a support shaft mechanism, an elastic absorber, a first sliding mechanism and a second sliding mechanism. The first sliding mechanism is slidably connected to the first hoop. The second sliding mechanism is slidably connected to the second hoop. The support shaft mechanism is rotatable relative to the first sliding mechanism and the second sliding mechanism.

Abstract: The present invention provides a metal platinum complex, an organic optoelectronic device, and a display or lighting apparatus. A new 6/5/7 metal fused-ring structure is developed by using 8-phenylquinoline structure and a derivative thereof, and benzo five-membered heterocycles and a phenoxy oxygen tetradentate ligand, to obtain a new class of tetradentate cyclometalated platinum complex phosphor material.

Abstract: Disclosed is an energy-saving system and method for direct air capture with precise ion control. The system includes an air conveying device, an air distribution device and a CO2 adsorption device with a moisture swing adsorbent with high CO2 adsorption capacity, where the air conveying device, the air distribution device and the CO2 adsorption device are connected in sequence, and the CO2 adsorption device is provided with a spray desorption device; a valence-state ion sieving device; a pH swing regeneration device; and a CO2 regeneration device. In accordance with the energy-saving system provided by the present disclosure, ultra-low concentration of CO2 in the air can be enriched to the concentration of 95% step by step for industrial application or biological application at room temperature and pressure by consuming the electricity which cannot be connected to a power grid.

Abstract: Disclosed in the present disclosure are a catalytic combustion type hydrogen sensor and a manufacturing method therefor. The catalytic combustion type hydrogen sensor includes a catalytic combustion element and a compensation element, where both the catalytic combustion element and the compensation element are planar film structures taking mica sheets as substrates, and platinum resistors and aluminum oxide film carriers are sequentially adhered on surfaces of the mica sheets. A layer of palladium nanoparticles are further adhered to a surface of the aluminum oxide film carrier of the catalytic combustion element as a catalyst.

Abstract: An eye-like focusing metasurface system driven by a supervised-evolving learning algorithm, comprises: a transmissive metasurface, an array probe, a focusing guidance module, and an evolving learning module, wherein, after an external electromagnetic wave signal penetrates through the transmissive metasurface, the array probe arranged behind the transmissive metasurface detects external electromagnetic wave data, by means of analysis of the focusing guidance module and the evolving learning module, a regulation and control strategy for the transmissive metasurface is outputted, and the state of the transmissive metasurface changes; then the array probe collects new data, and the focusing guidance module and the evolving learning module further analyze the intensity and the characteristics of the external electromagnetic wave data and output a next regulation and control instruction; the process is repeated until the external electromagnetic wave is focused to a specified position.

Abstract: The present disclosure discloses a missing medical diagnosis data imputation method and apparatus, an electronic device and a medium. The method includes the following steps: acquiring a medical diagnosis data set with data missing; randomly dividing original data into initial sample point data and candidate sample point data, and constructing and training a generative adversarial network initial imputation model by utilizing the initial sample point data; estimating an influence of sample points on a parameter of the generative adversarial network initial imputation model and a prediction result of the generative adversarial network initial imputation model by utilizing an influence function; and sampling a sample point with highest influence among the candidate sample point data by utilizing a binary search algorithm, and further iteratively optimizing the generative adversarial network initial imputation model so as to impute missing data for the medical diagnosis data.

Abstract: The disclosure provides a method for estimating a direction of arrival of an L-type coprime array based on coupled tensor decomposition. The method includes: constructing an L-type coprime array with separated sub-arrays and modeling a received signal; deriving a fourth-order covariance tensor of the received signal of the L-type coprime array; deriving a fourth-order virtual domain signal corresponding to an augmented virtual uniform cross array; dividing the virtual uniform cross array by translation; constructing a coupled virtual domain tensor by stacking a translation virtual domain signal; and obtaining a direction of arrival estimation result by coupled virtual domain tensor decomposition.

Abstract: A difference analysis method for 3D CAD models based on key-point matching. According to the method, a 3D CAD model is firstly transformed into a key-point representation, then a graph representation and a graph matching method are introduced to establish a pre-matching of vertices between the two 3D CAD models, and rigid transformation parameters between the two 3D CAD models are obtained through a mismatch elimination method; and subsequently, a matching relationship of key-points is established by checking their distance after rigid transformation to obtain a key-point matching sequence for hierarchical comparison, so as to identify the differences between vertices, edges, faces and solid models, thereby quickly and accurately identifying the difference between the 3D CAD models.

Abstract: Disclosed in the present invention is a spontaneous edge application deployment and pricing method based on an incentive mechanism. The method comprises the following steps: building an edge end application oriented spontaneous deployment system architecture; then proposing an incentive mechanism aiming at spontaneous edge application deployment and prizing; solving the spontaneous edge application deployment and prizing problem based on a backward induction method, thereby obtaining an optimal deployment solution of an edge server and an optimal prizing strategy of an application provider.

Abstract: A preparation method for a nanopore starch-based adsorbent. The method mainly comprises: constructing a large number of lamellar crystals on surfaces of starch granules, and inducing the formation of a nano-scale pore channel structure by means of the lamellar crystals. A large number of control tests have proved that the flaky crystals have direct influence on the formation of the nano-scale pore channel structure. The construction of a pore channel structure in a starch matrix material greatly increases the specific surface area, and improves the adsorption properties. In addition, the method is beneficial to the introduction of functional particles (magnetic particles), and avoids the problem of pore channel blockage due to first forming pores and then introducing functional particles.