Abstract: The present invention relates to a method for transferring material in a microfluidic or millifluidic device between a droplet of a first droplet train and a droplet of a second droplet train, as well as to the use of this method for the preparation of biological or chemical samples, the implementation of biological or chemical reactions, the screening of a molecule of synthetic or biological origin, or the screening or cultivation of microorganisms. The present invention also relates to a microfluidic or millifluidic device suitable for carrying out the method according to the invention.

Abstract: The present disclosure discloses a quantum dot (QD). The QD has a core-shell structure, and specifically has a structure of CdZnSeS/CdZnSe/CdZnS/ZnS, where there is a metal halide ligand between a CdZnS shell and a ZnS shell and outside the ZnS shell. The present disclosure also discloses a preparation method of the QD and a QD composite material prepared from the QD. The QD disclosed by the present disclosure has a small full width at half maxima (FWHM), excellent optical performance, and high stability. In the preparation method of the QD, an intermediate shell layer is prepared through alternate growth of anions and cations, and in addition to the introduction of a metal halide precursor, a long-chain alkanol is added to a shell to further improve the stability.

Abstract: A system and method for polarization detection of a target in a strong background are provided. The system includes: an image signal acquisition module configured for image information acquisition and signal conversion of a plurality of channels; a YoLoV3 neural network-based feature extraction module configured to increase a number of network layers, obtain a fused feature map combined with intensity information and polarization information, and extract a feature difference between an intensity modality and a polarized light modality; a Darknet53 neural network-based feature extraction module configured to extract a feature value of a high dynamic range image; a residual network-based feature fusion module configured to learn weights of different modalities, obtain a fused feature map of intensity modality information and polarization modality information, and select and optimize the fused feature map by attention mechanism processing; and an image printing module configured to filter background information.

Abstract: Disclosed is a self-powered formaldehyde sensing device, comprising: a triboelectric material electrode layer including a first substrate and a first electrode layer formed on the first substrate; a triboelectric material dielectric layer including a second substrate, a second electrode layer formed on the second substrate, a dielectric reacting layer formed on the second electrode layer, and a reaction modification layer formed on the dielectric reacting layer to surface-modify the dielectric reacting layer, the reaction modification layer being a phosphomolybdic acid complex (cPMA) layer, the phosphomolybdic acid complex of the phosphomolybdic acid complex layer being obtained by dissolving 4,4?-bipyridine (BPY) in isopropanol (IPA) and then mixing with phosphomolybdic acid (PMA) solution; an elastic spacer; and an external circuit.

Abstract: The present invention relates to an autoencoder-based encryption key generation technique, and more particularly, to a signal transmission apparatus, a signal reception apparatus, a signal transmission method, and a signal reception method in an autoencoder-based encryption key generation system, wherein an encryption key with enhanced security may be generated on the basis of an autoencoder.

Abstract: Disclosed is a multiple file transaction method comprising: a first step in which, for each of a plurality of files, a file system of a host stores, in a master commit block, the location of an inode block in a storage, the inode block being a block in which an inode of the file is written; and a second step in which the file system stores the master commit block in the storage.

Abstract: A system for machining a workpiece. The system includes a rotatable frame mounted to a base and arms which can translate relative to the rotatable frame. The arms are attached directly or indirectly to a machining tool which can be moved to various points around the workpiece and include tools for various machining operations.

Abstract: An apparatus and method for decoding a quantum low density parity-check code using quantum channel information whereby the apparatus and method provide a technique of performing iterative decoding initially using a first error correction and when error correction fails using a second error correction, in a process decoding a quantum low-density parity-check code based on a belief propagation algorithm.

Abstract: A reverse time migration imaging method for cased-hole based on ultrasonic pitch-catch measurement, including: calculating a theoretical dispersion curve; expanding original Lamb data of two receivers into array waveform data based on phase-shift interpolation; establishing a two-dimensional migration velocity model including density, P-wave velocity and S-wave velocity of a target area; generating and storing a forward propagating ultrasonic wavefield for each time step; reversing a time axis; generating and storing a reversely propagating ultrasonic Lamb wavefield for the two receivers after phase-shift interpolation; calculating envelopes of the forward propagating ultrasonic Lamb wavefield and the reversely propagating ultrasonic Lamb wavefield; applying a zero-lag cross-correlation imaging condition to obtain reverse time migration imaging results; and applying Laplace filtering to suppress low-frequency imaging noises in the imaging results.

Abstract: Compositions and methods of eradicating biofilms and/or inhibiting the formation of a biofilms or fouling by non-biofilm forming organisms using elasnin-based compositions are described. The elasnin can be combined with antimicrobial compounds and/or traditional coating ingredients.

Abstract: A pre-training method for a Vision and Scene Text Aggregation model includes: acquiring a sample image-text pair; extracting a sample scene text from a sample image; inputting a sample text into a text encoding network to obtain a sample text feature; inputting the sample image and an initial sample aggregation feature into a visual encoding subnetwork and inputting the initial sample aggregation feature and the sample scene text into a scene encoding subnetwork to obtain a global image feature of the sample image and a learned sample aggregation feature; and pre-training the Vision and Scene Text Aggregation model according to the sample text feature, the global image feature of the sample image, and the learned sample aggregation feature.

Abstract: Solid forms of psilocin and methods for their production and use with one or more improved properties as compared to psilocin and amorphous psilocin salts thereof are provided.

Abstract: The present invention makes it possible to rapidly deposit perovskite crystals while suppressing a decline in smoothness of a perovskite crystalline film. A perovskite crystal deposition apparatus comprises: a base body stage on which a base body is to be placed; a blade which is disposed so as to face the surface of the base body such that a gap is formed therebetween when the base body is placed on the base body stage; and a gas supply member that sprays a gas at a pressure of 0.3-0.6 MPa, a temperature of 25-200° C., and a flow rate of 30-40 L/min onto the surface of the base body With the deposition apparatus, a perovskite crystalline layer is obtained by spraying a gas from the gas supply member onto a precursor film that has been obtained by spreading a precursor solution of perovskite crystals on the base body using the blade.

Abstract: A vector database with 3-D fusion fuses processor into storage, i.e., it lowers the processing circuit (i.e., vector-distance calculating circuit, or VDCC) down to the lowest level of the storage circuit (i.e., storage arrays). Moreover, the VDCC and the storage arrays are 3-D integrated. By greatly reducing granularity and using massive parallelism, the present invention empowers accurate and fast brute-force search of the high-dimensional and large-scale vector database.

Abstract: A samarium-iron-nitrogen based magnet powder includes a lanthanoid (Ln), iron (Fe), bismuth (Bi), tungsten (W), and nitrogen (N), wherein the lanthanoid includes samarium (Sm), an atomic ratio of bismuth to a 5 sum of the lanthanoid, iron, bismuth, and tungsten (Bi/(Ln+Fe+Bi+W)) is 1.00 at % or less, an atomic ratio of tungsten to the sum of the lanthanoid, iron, bismuth, and tungsten (W/(Ln+Fe+Bi+W)) is 0.05 at % or more and 0.60 at % or less, and an atomic ratio of tungsten to bismuth (W/Bi) is 1.0 or more and 30.0 or less.

Abstract: The present invention relates to the technical field of artificial intelligence, and in particular, to a road disease recognition method, system, a device, and a storage medium. The road disease recognition method includes: collecting a historical pavement image with a disease, and sequentially detecting and segmenting the historical pavement image to generate a plurality of visualized sample images, where the sample images have feature parameters marking the sample images; establishing a sample training set using the sample images; building a discriminative model for determining a disease category, and training the discriminative model using the sample training set to obtain a trained discriminative model; acquiring a new pavement image, sequentially detecting and segmenting the new pavement image, and then inputting the new pavement image that is detected and segmented into the discriminative model to generate a determination result.

Abstract: The provided are a line fault detection method, system, equipment, and a computer-readable storage medium. The line fault detection method comprises the following steps: Inject a pulse signal into the grounding electrode line and acquire fault voltage traveling wave data responding to the fault point in the grounding electrode line based on the measuring spot; Based on the fault voltage traveling wave data and a preset step size, determine the voltage forward traveling wave sequence and voltage reverse traveling wave sequence for the entire grounding electrode line; Based on the corresponding energy superposition expressions of the voltage forward traveling wave sequence and the voltage reverse traveling wave sequence, determine the integral value sequence of the traveling wave product within a preset time period; Based on the maximum mutation point in the integral value sequence, determine the fault distance.

Abstract: The present disclosure relates to the field of biomedicine, in particular, to a CD300LD inhibitor and use thereof in the preparation of tumor immunotherapy products. In the present disclosure, the CD300LD inhibitor regulates the migration and function of PMN-MDSC cells by modulating S100A8/A9 in its downstream signaling pathway, and plays an important role in the establishment of the tumor microenvironment. The polypeptide isolated by the present disclosure is used as a CD300LD inhibitor, and CD300LD-ECD protein can inhibit CD300LD by competitive binding, thus inhibiting tumor development. When tumor-bearing mice are treated with this peptide, the development of tumors can be significantly inhibited. In addition, CD300LD-ECD has a significant anti-tumor synergistic effect with PD1 antibody.

Abstract: A rapid detection method for abrin toxin is provided. The rapid detection method for abrin toxin includes the following steps: reacting an oligonucleotide chain substrate labeled with a fluorescent group and a quenching group, a buffer solution, a BSA solution, a to-be-detected sample and sterile water, incubating at a constant temperature, detecting a fluorescence signal value, and determining whether the abrin toxin exists based on a difference between a change in final fluorescence signal value and a change in final fluorescence signal value of a negative control; where the sample is judged as a positive sample when an average value of the detected final fluorescence signal values is greater than an average value of the final fluorescence signal values of the negative control by +3 times standard deviation. According to the detection method, the direct addition of the sample into the reaction system can reach the sensitivity of 30 ng/mL.

Abstract: A content delivery network processing method includes: obtaining response data from at least one CDN node in response to a network request from a detection end, the response data including information indicating that the network request is successful or failed; calculating the quantity of detection successes and the quantity of detection failures of the detection end corresponding to the at least one CDN node in accordance with the response data; calculating a detection failure rate of the detection end in accordance with the quantity of detection successes and the quantity of detection failures; and comparing at least one of the detection failure rate or the quantity of detection failures with a target threshold, and determining whether the detection end is faulty in accordance with a comparison result.