Preparation Method of Spindle-shaped W@CuO Material with Adjustable Included Angle

    公开(公告)号:US20250074784A1

    公开(公告)日:2025-03-06

    申请号:US18619204

    申请日:2024-03-28

    Abstract: A preparation method and application of spindle-shaped W@CuO material with adjustable included angle includes the steps of: preparing a copper source solution and adding to a mixture of anionic surfactant and n-butanol; adding a tungsten source solution and dripping an alkali solution, then carrying out hydrothermal reaction, centrifugation, washing and drying. By controlling the growth rate of the high-energy surface at the water-oil interface with the salt concentration, surfactant concentration, supersaturation of water and n-butanol solutions, the monodispersed spindle-shaped structure with unique microstructure and an included angle of 27-74° can be prepared. The surface of W@CuO materials with different included angles shows different electric field strengths, which can effectively modulate the charge transfer during the catalytic process and improve the catalytic reaction activity. The unique spindle-shaped structure makes it have excellent hydrogen evolution performance in alkaline electrolysis of water.

    METHOD FOR PREPARING ELECTROTHERMAL HEATING SHEET FROM CARBON FIBER BRAIDED FABRIC SCRAPS

    公开(公告)号:US20250066960A1

    公开(公告)日:2025-02-27

    申请号:US18719142

    申请日:2023-03-09

    Abstract: Provided is a method for preparing an electrothermal heating sheet from carbon fiber braided fabric scraps, including: cutting clumps of disordered carbon fiber braided fabric scraps into chopped carbon fibers; washing the chopped carbon fibers by separately using acetone and deionized water, and drying; preparing a corresponding dispersion; adding the chopped carbon fibers to the dispersion, and fully dispersing; performing vacuum filtration by using a double-layer metal screen, and drying to obtain a chopped carbon fiber felt; cutting the chopped carbon fiber felt, sticking electrodes to two ends of the chopped carbon fiber felt, and covering thermoplastic polyurethane (TPU) sheets on front and back surfaces of the chopped carbon fiber felt to form a heating sheet product having electrothermal performance and electromagnetic shielding performance. The direct discarding of the carbon fiber braided fabric scraps and the scraps resulting from cutting in the preparation process as wastes may result in not only great wasting of materials but also in environmental pollution. The method fully utilizes the carbon fiber braided fabric scraps and is low in cost, and the prepared product has excellent electrothermal performance and electromagnetic shielding performance.

    SiRNA delivery system compound as well as preparation method and application thereof

    公开(公告)号:US12194145B2

    公开(公告)日:2025-01-14

    申请号:US17227408

    申请日:2021-04-12

    Abstract: The invention relates to the technical field of gene treatment and nano targeted delivery, in particular to a siRNA delivery system compound as well as a preparation method and application thereof. The preparation method comprises the following steps of reacting Boc-protected histidine with cholesterol to generate Boc-protected histidine cholesteryl ester, and removing BOC-released protected amino in trifluoroacetic acid to generate histidine cholesteryl ester; then, enabling amino to react with carboxyl of carboxymethyl chitosan to modify long-chain carboxymethyl chitosan to generate carboxymethyl chitosan modified by histidine cholesteryl ester, and performing targeted labeling on carboxymethyl chitosan modified by histidine cholesteryl ester to generate a carboxymethyl chitosan high-molecular compound modified by histidine cholesteryl ester and a targeted marker together, then forming a stable spherical delivery vector through self-assembly above critical micelle concentration, and mixing the stable spherical delivery vector with siRNA (small interfering ribonucleic acid) to obtain the siRNA delivery system compound.

    MULTI-TOW CARBON FIBER SPREADING AND PRE-IMPREGNATION SYSTEM

    公开(公告)号:US20240375318A1

    公开(公告)日:2024-11-14

    申请号:US18259996

    申请日:2022-09-08

    Abstract: Provided is a multi-tow carbon fiber spreading and pre-impregnation system, which is used to solve the technical problems of large thickness, high porosity and the like of a prepreg tape product caused by low spread ratio and insufficient pre-impregnation in the production process of existing thermoplastic prepreg tapes. The system includes a filament release module, a filament doubling module, an airflow spreading module, a process deviation correction module, a traction module, a slurry impregnation module, an infrared melting module, a hot-pressing shaping module, a floating roller module, a cutting module, a leftover collecting module, a winding deviation correction module and a winding module which are sequentially arranged along a feeding direction. The filament release module includes at least two filament release assemblies, and carbon fibers are placed on the filament release assemblies.

    Blockchain-based privacy protection method for content centric network (CCN)

    公开(公告)号:US12095898B2

    公开(公告)日:2024-09-17

    申请号:US17863414

    申请日:2022-07-13

    CPC classification number: H04L9/0637 H04L9/14

    Abstract: A blockchain-based privacy protection method for a CCN includes: executing, by a trusted AAC, an initialization algorithm to generate common parameters and a master key, generating a public key and a private key for each consumer and publisher, and randomly generating, by the trusted AAC, its own public key and private key; calculating a public key, and generating ciphertext and uploading the ciphertext to a CSP; performing transaction on-chaining; and during decryption, finding, by the consumer, transaction information of the content on the consortium blockchain, sending an interest packet based on the transaction information, and obtaining ciphertext CT through a storage address in the transaction information; generating, by the consortium blockchain, an access transaction based on access information of the consumer; sending the ciphertext CT to the consumer through a data packet; and locally decrypting, by the consumer, the ciphertext CT, and verifying correctness of the content.

    Self-learning collaborative control method for active steering and yaw moment

    公开(公告)号:US12091114B2

    公开(公告)日:2024-09-17

    申请号:US18395716

    申请日:2023-12-25

    CPC classification number: B62D7/159

    Abstract: The present disclosure provides a self-learning collaborative control method for active steering and yaw moment for a motor vehicle, including a first step of constructing fundamental formulas which are stored in a vehicle ECU, and a second step of calculating an active steering angle δC and a yaw moment Mc on line by the vehicle ECU according to following sub-steps during a driving process of the motor vehicle, and controlling a driving state of the motor vehicle according to δC and Mc. The second step includes a first sub-step of collecting raw real-time parameter values, a second sub-step of performing calculation by the identifier and the control target reference model, a third sub-step of calculating δC and Mc. The present disclosure can realize the self-learning collaborative control of active steering and yaw moment without requiring a system control model and correct a driver's steering operation.

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