Abstract: A degradable cellulose nanocrystal-based conductive ink and a preparation method thereof are provided. The preparation method includes: S1, dissolving a cellulose nanocrystal in deionized water to form a mixed solution, and adding a water-resistant modifier into the mixed solution, and subjecting a resulting mixture to ultrasonic full dispersion to obtain a dispersion for later use; S2, dissolving a graphene nanopowder, methyl orange, polyvinyl pyrrolidone (PVP), and pyrrole in deionized water to obtain a suspension for later use; S3, adding an acidified ferric chloride solution and the dispersion dropwise into the suspension, subjecting a resulting mixture to a full reaction, subjecting a resulting hot reaction solution to suction filtration, and drying, and o grinding fully a resulting dried mixture to obtain a conductive filler; and S4, mixing the conductive filler, terpineol, glycerol, and PVA fully to obtain the degradable cellulose nanocrystal-based conductive ink.

Abstract: A preparation method of lawn bricks capable of solidifying and stabilizing lead-contaminated soil includes: preparing carbonized bagasse, grinding and mixing the carbonized bagasse and potassium carbonate in a mortar, heating the resulting mixture to 600-650° C., and maintaining for 2-3 hours; fully mixing the carbonized and treated bagasse, heavily-lead-contaminated soil, construction waste and fly ash; then adding a treated sodium silicate solution and stirring, and reacting under ultrasonic conditions; and performing grouting and compacting to obtain a homogeneous green brick, and curing same to obtain a lawn brick. The bagasse is taken as a raw material, and is carbonized and then mixed with the pre-treated heavily-Pb-contaminated soil, construction waste and fly ash, and under an action of alkali excitation and ultrasonic assistance, the resulting mixture is cured to form the lawn brick, such that Pb (II) in the Pb-contaminated soil is not migrated and converted any more.

Abstract: According to an example aspect of the present invention, here is provided a lignin ether grafted with poly(alkyl acrylate), a latex comprising a lignin ether grafted with poly(alkyl acrylate), and a method of manufacturing a biobased latex comprising the steps of providing an allylated lignin ether derivative and grafting the allylated lignin ether derivative with a poly(alkyl acrylate) by emulsion polymerization, a biobased film formed by the said latex or said method and the use of the latex.

Abstract: A method for reducing seed production of barnyard grass in paddy fields is provided in the present application. The method for reducing seed production of barnyard grass in paddy fields includes: 1: selecting plots; 2: monitoring plant height; 3: observing seeds; 4: mowing barnyard grass; 5: utilizing barnyard grass; and 6: measuring seed yield. The method includes no hormones or pesticides.

Abstract: Provided are a method for tracking carbon flow of a power system, a device and a medium. The method includes: acquiring related data of carbon flow tracking, where the related data include an injected active power sum column matrix of generator sets of all substations to be tracked, an injected carbon flow rate sum column matrix of generator sets of all substations to be tracked, an output power distribution matrix of a branch formed between substations to be tracked, and a power flow proportion distribution matrix of the branch formed between substations to be tracked; acquiring a carbon potential matrix EN of each substation to be tracked; and acquiring a carbon flow rate of each substation to be tracked, a carbon flow rate of the branch, and a carbon flow rate of an output load on the basis of the carbon potential matrix of each substation to be tracked.

Abstract: A computing device is secured in an enclosure by a locking mechanism. The locking mechanism includes a jaw, a transmission lever, and an arm. The jaw is configured to abut a portion of the enclosure for holding the computing device. The transmission lever includes an arm pivot at one end and an actuating pivot at the opposite end. The arm is configured to rotate open and closed about the arm pivot and be selectively decoupled from the transmission lever. When the arm is coupled to the transmission lever, opening the arm causes the transmission lever to rotate open about the actuating pivot. Rotating open the transmission lever about the actuating pivot releases the jaw from the portion of the enclosure, and allows the computing device to be removed from the enclosure.

Abstract: A privacy protection method and system for financial data sharing based on federated learning are provided. In recent years, due to the restrictions of data security and privacy protection laws and regulations, it is difficult to share data across institutions or departments. In order to make data transfer and transaction between different entities can be achieved without violating the national laws on data privacy and data security, the privacy protection method and system for financial data sharing based on federated learning is provided. A privacy collection intersection technology is adopted, so that two institutions, which may have many differences in business, but most of their customer groups are the same, jointly train a learning model.

Abstract: For the defects that manual adhesive tape pasting is low in efficiency and high in cost, and it is difficult to automatically paste adhesive tapes at specified positions of inner and outer surfaces of an item according to a certain length through a handheld box sealer and an adhesive tape seal pasting mechanism, a cantilever type plane automatic adhesive tape pasting device is invented. A liftable two-stage telescopic cantilever adhesive tape pasting head structure, a roller type automatic adhesive tape feeding structure, an adjustable fixed-length cutting structure and a roller type pasting structure are adopted for the device to achieve the automatic adhesive tape pasting on inner and outer side planes of an item. After the item needing adhesive tape pasting is positioned, the pasting process is completely automatically conducted without manual participation, the labor intensity is reduced, the labor efficiency is improved.

Abstract: A data processing method includes obtaining location information of a target path, generating a control instruction according to the location information to instruct a mobile platform to move to above the target path, obtaining survey data of the target path collected by a sensor of the mobile platform and determining status information of one or more traffic participants on the target path based on the survey data, and marking a target data fragment in the survey data according to the status information of the one or more traffic participants. Status information of the one or more traffic participants in the target data fragment satisfies a preset status information condition.

Abstract: A privacy protection method and system for financial data sharing based on federated learning are provided. In recent years, due to the restrictions of data security and privacy protection laws and regulations, it is difficult to share data across institutions or departments. In order to make data transfer and transaction between different entities can be achieved without violating the national laws on data privacy and data security, the privacy protection method and system for financial data sharing based on federated learning is provided. A privacy collection intersection technology is adopted, so that two institutions, which may have many differences in business, but most of their customer groups are the same, jointly train a learning model.

Abstract: For the defects that manual adhesive tape pasting is low in efficiency and high in cost, and it is difficult to automatically paste adhesive tapes at specified positions of inner and outer surfaces of an item according to a certain length through a handheld box sealer and an adhesive tape seal pasting mechanism, a cantilever type plane automatic adhesive tape pasting device is invented. A liftable two-stage telescopic cantilever adhesive tape pasting head structure, a roller type automatic adhesive tape feeding structure, an adjustable fixed-length cutting structure and a roller type pasting structure are adopted for the device to achieve the automatic adhesive tape pasting on inner and outer side planes of an item. After the item needing adhesive tape pasting is positioned, the pasting process is completely automatically conducted without manual participation, the labor intensity is reduced, the labor efficiency is improved.

Abstract: A computing device is secured in an enclosure by a locking mechanism. The locking mechanism includes a jaw, a transmission lever, and an arm. The jaw is configured to abut a portion of the enclosure for holding the computing device. The transmission lever includes an arm pivot at one end and an actuating pivot at the opposite end. The arm is configured to rotate open and closed about the arm pivot and be selectively decoupled from the transmission lever. When the arm is coupled to the transmission lever, opening the arm causes the transmission lever to rotate open about the actuating pivot. Rotating open the transmission lever about the actuating pivot releases the jaw from the portion of the enclosure, and allows the computing device to be removed from the enclosure.

Abstract: A locking mechanism for securing a computing device in an enclosure includes a jaw, a transmission lever, and an arm. The jaw is configured to abut a portion of the enclosure for holding the computing device. The transmission lever includes an arm pivot at one end and an actuating pivot at the opposite end. The arm is configured to rotate open and closed about the arm pivot and be selectively decoupled from the transmission lever. When the arm is coupled to the transmission lever, opening the arm causes the transmission lever to rotate open about the actuating pivot. Rotating open the transmission lever about the actuating pivot releases the jaw from the portion of the enclosure, and allows the computing device to be removed from the enclosure.

Abstract: A locking mechanism for securing a computing device in an enclosure includes a jaw, a transmission lever, and an arm. The jaw is configured to abut a portion of the enclosure for holding the computing device. The transmission lever includes an arm pivot at one end and an actuating pivot at the opposite end. The arm is configured to rotate open and closed about the arm pivot and be selectively decoupled from the transmission lever. When the arm is coupled to the transmission lever, opening the arm causes the transmission lever to rotate open about the actuating pivot. Rotating open the transmission lever about the actuating pivot releases the jaw from the portion of the enclosure, and allows the computing device to be removed from the enclosure.

Abstract: A photoelectric converter includes a silicon photomultiplier array and a light guide coupled to the silicon photomultiplier array. The silicon photomultiplier array is generated by splicing i×j silicon photomultipliers on a horizontal plane, where both i and j are integers greater than or equal to 2. A detector includes a scintillation crystal, an electronic system, a light guide and a silicon photomultiplier. A scanning device includes a detection apparatus and a rack, the detection apparatus includes a detector, and the detector includes the photoelectric converter.

Abstract: A method for synchronizing list-mode data of single events in a PET imaging includes: acquiring list-mode data of single events of each independent detector module, calculating a probability density of time intervals between occurrences of single events in detector module and setting initial parameters, determining detection starting time difference of each detector module with iterative peak searching and graded time window, and performing synchronization correction and coincidence discrimination on the single event data in each detector module based on the detection starting time difference. A system for synchronizing list-mode data of single events in a PET imaging includes: a data acquisition and frequency difference compensation module, an initial parameter setting module, a coarse time scale coincidence module, a fine time scale coincidence module and a data synchronization correction and coincidence discrimination module.

Abstract: A multichannel in-vitro metabolism real-time monitoring apparatus includes a radiation probing apparatus and a constant flow culture apparatus. The constant flow culture apparatus includes a liquid supply bottle, a waste liquid bottle, a multichannel infusion apparatus, and a multichannel liquid separation apparatus. The radiation probing apparatus has two groups of probing modules with flat structures, which are separately disposed on two sides of multichannel biochemical culture apparatuses and are used for recording radiation activities in the multichannel biochemical culture apparatuses in real time.

Abstract: A crystallization column and a crystallization method. The crystallization column comprises an upper head (1), a tower body (2) and a lower head (3), wherein a crystallization section (11) is provided with a tray (14); and the tray (14) comprises a tray plate (15) and a plurality of lower crystallization members (17). The top end of the lower crystallization member (17) can form a movable connection with the tray plate (15), so that the two adjacent lower crystallizing members (17) are capable of oscillating collisions. The tray (14) may also comprise a plurality of upper crystallization members (21) extending upwardly from the upper surface of the tray plate (15).

Abstract: An on-line energy coincidence method for an all-digital PET system, comprising: a detection module conducting information collection on a scintillation pulse, forming a single event data frame and sending it to an upper computer; the upper computer conducting two-bit position distribution statistics on an incident gamma photon event and conducting position spectrum partition; performing statistics on an energy distribution spectrum of each crystal bar, so as to acquire an energy correction value; the detection module uploading a crystal bar partition data table and an energy peak correction data table; starting information collection of on-line energy correction; when an event is coming, according to a two-dimensional coordinate thereof, from the crystal partition table, searching for a crystal bar number corresponding thereto, and searching for an energy correction value from the energy correction table; and sending data passing the energy coincidence to the upper computer.

Abstract: A photoelectric converter includes a silicon photomultiplier array and a light guide coupled to the silicon photomultiplier array. The silicon photomultiplier array is generated by splicing i×j silicon photomultipliers on a horizontal plane, where both i and j are integers greater than or equal to 2. A detector includes a scintillation crystal, an electronic system, a light guide and a silicon photomultiplier. A scanning device includes a detection apparatus and a rack, the detection apparatus includes a detector, and the detector includes the photoelectric converter.