AIR DISTURBANCE TYPE CARBON FIBER SPREADING DEVICE

    公开(公告)号:US20240060219A1

    公开(公告)日:2024-02-22

    申请号:US18260025

    申请日:2022-09-08

    CPC classification number: D02J1/18 D10B2101/12 D10B2505/02

    Abstract: Provided is an airflow disturbance type carbon fiber spreading device. The device includes an unwinding module, an unwinding tension control module, an airflow disturbance spreading module, a winding tension stabilizing module, a deviation correction module and a winding module which are sequentially arranged along a feeding direction. The spreading mechanism includes an airflow disturbance spreading module, the airflow disturbance spreading module includes two airflow disturbance spreading assemblies, each airflow disturbance spreading assembly includes a centrifugal fan, the centrifugal fan communicates with the bottom of an airflow duct, and three spreading guide shafts are arranged side by side on the top of the airflow duct. A tension adjusting assembly is provided between the airflow disturbance spreading assemblies. A seventh spreading guide shaft (13) is located at the upper port of an airflow duct I (25) and is connected to a slider module II (34).

    Method for preparing large size beta-type ammonium tetramolybdate monocrystal particle

    公开(公告)号:US11859314B2

    公开(公告)日:2024-01-02

    申请号:US17834238

    申请日:2022-06-07

    CPC classification number: C30B7/08 C30B33/02

    Abstract: A method for preparing large size beta-type ammonium tetramolybdate monocrystal particle includes industrial ammonium molybdate, ammonia, de-ionized water are used to prepare ammonium molybdate solution with concentration of 0.2˜0.6 g/ml; pH is adjusted to 5˜7, temperature is adjusted to the first temperature of 70˜90° C. to obtain the first ammonium molybdate solution; beta-type ammonium tetramolybdate crystal seed is put into crystallization container, and the first ammonium molybdate solution is poured in the crystallization container, to form crystallization system; the crystallization system stands still at room temperature, naturally cooling, the beta-type ammonium tetramolybdate crystal seed grows into large size beta-type ammonium tetramolybdate monocrystal particle. A beta-type ammonium tetramolybdate crystal seed is obtained by constant-temperature crystallization at 70˜90° C. The obtained beta-type ammonium tetramolybdate crystal seed is put stewing in the first ammonium molybdate solution and is naturally cooling to produce large size beta-type ammonium tetramolybdate monocrystal particle forms.

    RAA PRIMERS AND KITS FOR DETECTION OF HEPATITIS C VIRUS

    公开(公告)号:US20230295752A1

    公开(公告)日:2023-09-21

    申请号:US18058851

    申请日:2022-11-25

    CPC classification number: C12Q1/707 G01N33/54388 G01N2333/02

    Abstract: The present disclosure disclosed recombinase aided amplification (RAA) primers and kits for the detection of hepatitis c virus. Nucleotide sequences of the RAA primers include: an upstream primer: 5′-FITC-CTTGGGATATGATGATGAACTGGTCACCTAC-3′ (SEQ ID NO. 1); and a downstream primer: 5′-Biotin-AAGAGTAGCATCACAATCAGAACCTTAGCC-3′ (SEQ ID NO. 2). The HCV detection by using the RAA primers screened by the present disclosure has good specificity and high sensitivity (at least 10 copies/μL can be detected). The RAA primers can be used to prepare an HCV detection kit and construct an RAA amplification system. And combined with a lateral flow chromatography technology, the present disclosure can achieve rapid and low-cost detection of HCV and visual result judgment, no complex professional background is required, the use process is convenient and fast, and the detection results are safe and reliable.

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