Abstract: Disclosed is a power supply method for an intrinsically-safe gas chromatograph.

Abstract: The present disclosure relates to a device and method for recovering arsenic and gallium. A closed furnace body is in communication with a vacuuming pipe, and the vacuuming pipe is connected to a vacuuming mechanism. The closed furnace body includes a first furnace body, a second furnace body and a third furnace body. A first heating mechanism and a graphite crucible are arranged inside the first furnace body, the first heating mechanism being used for heating the graphite crucible. A first collection cylinder is in communication with a second collection cylinder. The device for recovering arsenic and gallium of the present disclosure is arranged with a structure for realizing directional condensation of gallium arsenide clusters and arsenic vapor, respectively, to realize high-purity recovery of arsenic and gallium.

Abstract: A method for processing positron emission tomography data is provided, this method includes: obtaining a first coordinate and a second coordinate respectively corresponding to two ends of a response line to be processed; determining corresponding dimensional coordinates of the response line to be processed in a sinogram based on the first coordinate and the second coordinate; and generating the sinogram corresponding to the response line to be processed based on the dimensional coordinates. According to this method, the amount of calculation of system matrix is reduced, the accuracy of position information of the generated response line is improved, and the accuracy of generated sinogram is improved accordingly.

Abstract: The technology of this application relates to a signal processing apparatus having functions of communication and positioning and sensing, so that complexity of a photoelectric detector array is reduced. The apparatus includes N photoelectric detector unit subarrays and M output ports respectively connected to the N photoelectric detector unit subarrays, where at least two of the N photoelectric detector unit subarrays are different, a quantity of photoelectric detector units included in at least one of the N photoelectric detector unit subarrays is greater than or equal to 2, N is an integer greater than or equal to 2, and M is an integer less than or equal to N. A photoelectric detector unit in the N photoelectric detector unit subarrays is configured to perform photoelectric conversion on an optical signal, to obtain a first electrical signal, and the M output ports are configured to output the first electrical signal.

Abstract: The present invention relates to a one-pot process for the production of poly carbodiimide cured polymers. comprising a reaction of (a) at least one polycarbodiimide with two or more carbodiimide functionalities per molecule. (b) at least one polyol with two or more hydroxyl functionalities per molecule, and (c) at least one cyclic carboxylic anhydride.

Abstract: Provided are a vacuum distillation furnace, and a method for preparing high-purity copper particles. In view of the fact that high-purity copper prepared by the traditional method in the current industrial production has an unsatisfactory purity, a high impurity content, and a complicated composition, a vacuum distillation method is adopted. During the vacuum distillation method, most of valuable metals in a copper matrix are volatilized and enter into a gas phase, such that the metals are separated from the copper matrix, thereby allowing the purification of copper; and copper powder particles volatilized to a condensation plate have a smooth surface and a purity of 5 N grade or more.

Abstract: A polarization intelligent sensing system and a polarization intelligent sensing method are provided. The polarization intelligent sensing method includes performing the polarization imaging on the target scene to obtain the polarization image, performing the calculation on the polarization image to obtain the polarization information of the target scene, generating the image information to be restored of the target scene according to the polarization information of the target scene, and constructing the multi-dimensional target detection neural network based on the DETR, and obtaining the interpretation information of the target scene based on the image information to be restored of the target scene, the spectral information, or the intensity information through the neural networks.

Abstract: A long-acting brexpiprazole preparation for injection and a preparation method therefor. The preparation method therefor comprises: (a) dissolving brexpiprazole in an organic solvent to form a brexpiprazole solution; (b1) pumping the brexpiprazole solution into a sheared or violently stirred precipitation solvent, so as to precipitate brexpiprazole, or (b2) pumping the precipitation solvent into the sheared or violently stirred brexpiprazole solution, so as to precipitate brexpiprazole; (c) filtering and optionally using water to wash an obtained solid; and (d1) drying the obtained solid, and respectively packaging the dried solid and an auxiliary material solution to obtain the long-acting brexpiprazole preparation for injection, or (d2) dispersing the obtained solid into the auxiliary material solution to obtain the long-acting brexpiprazole preparation for injection.

Abstract: Provided VCSEL includes emitters arranged in an array disposed on a surface of a substrate, a first passivation layer disposed on a surface of the emitters facing away from the substrate and provided with a first via, a second passivation layer provided with a second via, and a first pad. The first pad includes first sub-pads and at least one second sub-pad, a number of the first sub-pads is equal to a number of the emitters, the first sub-pads are disposed on a side of the first passivation layer facing away from the substrate and connected to the emitters through the first via, the second passivation layer covers the first sub-pads and the first passivation layer, and the at least one second sub-pad is connected to the first sub-pads through the second via.

Abstract: The disclosure provides a tetra-specific antibody monomer having a N-terminal and a C-terminal, comprising in tandem from the N-terminal to the C-terminal, a first scFv domain at the N-terminal, a Fab domain, a Fc domain, a second scFv domain, and a third scFv at the C-terminal, wherein the first scFv domain, the Fab domain, the second scFv domain, and the third scFv domain each has a binding specificity against a different antigen. In one embodiment, the antigen is a tumor antigen, an immune signaling antigen, or a combination thereof. Multi-specific antibodies comprising the disclosed tetra-specific antibodies are also provided.

Abstract: The present disclosure relates to a preparation process of a Ti3AlC2 ceramic phase-toughened molybdenum alloy. The preparation process includes: mixing MoO2 and Ti3AlC2 powders, sieving to obtain a mixed powder, and then conducting high-temperature hydrogen reduction; mixing a resulting reduced powder with a coarse-grained Mo powder to obtain a precursor powder; putting the precursor powder into a cladding material to allow hot-pressed sintering; subjecting an obtained sintered molybdenum alloy to high-temperature treatment and thermoplastic processing in sequence; and annealing an obtained processed molybdenum alloy to obtain a high-strength and high-toughness molybdenum alloy. In the present disclosure, a Ti3AlC2-containing ultrafine powder prepared by reduction is mixed with the commercial coarse-grained molybdenum powder in a certain proportion to obtain the precursor powder.

Abstract: Systems and methods are disclosed that use a geometric approach to detect objects on a road surface. A set of points within a region of interest between a first frame and a second frame are captured and tracked to determine a difference in location between the set of points in two frames. The first frame may be aligned with the second frame and the first pixel values of the first frame may be compared with the second pixel values of the second frame to generate a disparity image including third pixels. Subsets of the third pixels that have an disparity image value about a first threshold may be combined, and the third pixels may be scored and associated with disparity values for each pixel of the one or more subsets of the third pixels. A bounding shape may be generated based on the scoring that corresponds to the object.

Abstract: Provided are a VCSEL with a small divergence angle, a VCSEL chip with a small divergence angle, and a light source for a LIDAR system. The laser includes an active layer and a lower Bragg reflection layer and an upper Bragg reflection layer on two opposite sides of the active layer. A light storage layer is disposed at at least one of a position between the lower Bragg reflection layer and the active layer or a position between the upper Bragg reflection layer and the active layer, where the light storage layer is configured to store energy of a standing wave light field. An antireflection layer having an antireflection interface is disposed between the light storage layer and the active layer, where the antireflection layer is configured to increase a maximal light field intensity of the light storage layer to be higher than a maximal light field intensity of the active layer.

Abstract: A high-frequency transformer includes: an iron core, primary windings and secondary windings, wherein the iron core is of an integrated equilateral triangle structure, the primary windings and the secondary windings are uniformly wound around three sides of the iron core, and the primary windings and/or the secondary windings are symmetrically distributed on the three sides.

Abstract: In the manufacturing method of a vertical cavity surface emitting laser, through the same etching process, a first passivation layer located on a side of an N-type ohmic metal layer away from a substrate is etched to form a first via on the side of the N-type ohmic metal layer away from the substrate to expose the N-type ohmic metal layer, and a first passivation layer located on a side of the P-type ohmic contact layer away from the substrate is etched in a mesa structure to form a second via on the side of the P-type ohmic contact layer away from the substrate in the mesa structure to expose the P-type ohmic contact layer.

Abstract: The present disclosure provides a blockchain-based green power certification method, apparatus, and system, to pre-process obtained basic data to obtain proof-of-existence data, certify the proof-of-existence data from a production side and a consumption side by using a certification chain and a token chain respectively, and obtain a green power attribute certificate and a green power consumption label if the certification is passed; generate a unique digital identifier for the green power attribute certificate and the green power consumption label separately based on a non-fungible token (NFT), which realizes non-interchangeability, indivisibility, and other characteristics of the certificate and the identifier; and supervise and verify a certification process by using a chain of custody, and generate a corresponding unique blockchain identifier for the certification chain, the token chain, and the chain of custody separately through multi-chain interaction, so as to realize data interaction between blockcha

Abstract: Provided are techniques for intelligent preemptive processing to avoid data from becoming Redundant, Obsolete or Trivial (ROT). An application configuration is monitored to generate application configuration data. Application settings are reconfigured based on the application configuration data and based on a risk data list, where the risk data list identifies one or more data files. A data file of the data files in an existing data format is preemptively converted to a new data format based on the reconfigured application settings. An attempt is made to verify the conversion by using the reconfigured application settings. In response to determining that the conversion succeeded and that a request is received from a new application to open the data file, the data file having the new data format is opened. In response to determining that the conversion failed, an error message is sent to request update of server data.

Abstract: A method, device and equipment for reconstructing a PET image are provided. The method includes acquiring a prior image comprising an anatomical image and an autocorrelation feature image, the autocorrelation feature image being determined based on gray-level co-occurrence matrix of the anatomical image; and acquiring a feature value of the prior image; reconstructing the PET image according to the feature value and an iterative algorithm.

Abstract: This disclosure relates to a composition comprising (a) 4,4?-methylene diphenyl diisocyanate (4,4?-MDI), and (b) at least one heterocyclic compound comprising as ring moiety at least one structure of formula (I) as defined in the description. The heterocyclic compound can suppress the formation of 4,4?-MDI dimer and thus prevent the formation of insoluble solids and extend the shelf life of 4,4?-MDI.

Abstract: Provided VCSEL including substrate, emitters arranged in m×n array, and first ohmic metal layer. Surface of substrate includes light-emitting regions in array of m rows and n columns and non-light-emitting region surrounding each light-emitting region, m×n?2. Each emitter includes first DBR on surface of substrate, active layer on side of first DBR away from substrate, and second DBR on side of active layer away from substrate, at least part of first DBR disposed in respective light-emitting region, active layer and second DBR disposed in respective light-emitting region. First ohmic metal layer disposed on surface of first DBR away from substrate and disposed in non-light-emitting region, projection of first ohmic metal layer on substrate doesn't overlap projections of first and second connecting lines on substrate, first and second connecting lines respectively connects centers of emitters in same row, connects centers of emitters in same column.