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174 条记录 (耗时 0.044 秒)

    Polyvalent attenuated live vaccine for preventing and curing vibriosis of cultivated fish
    22.
    发明授权
    Polyvalent attenuated live vaccine for preventing and curing vibriosis of cultivated fish 有权
    用于预防和治疗培养鱼的弧菌的多价减毒活疫苗

    公开(公告)号：US07794730B2

    公开(公告)日：2010-09-14

    申请号：US11793170

    申请日：2005-12-14

    申请人： Yue Ma ,  Yuanxing Zhang ,  Dongling Zhao

    发明人： Yue Ma ,  Yuanxing Zhang ,  Dongling Zhao

    IPC分类号： A61K39/00 ,  C12N1/20

    CPC分类号： C12N1/36 ,  A61K39/107 ,  A61K2039/522 ,  A61K2039/552

    摘要： A novel polyvalent attenuated live bacterial vaccine for preventing and curing vibriosis of cultivated fish is provided. The vaccine mainly comprises attenuated deletion strain of Vibrio anguillarum without marker gene, which has significant low toxicity, but remains immunogenicity against wild type strain of V. anguillarum, as compared with wild type strain MVM425. Moreover, the vaccine strain has excellent cross immunoprotection against Vibrio alginolyticus. The attenuated live vaccine made from the vaccine strain is effective to prevent and cure vibriosis of fish resulted from wild type strain of V. anguillarum and V. alginolyticus.

    摘要翻译： 提供了一种用于预防和治疗培养鱼的弧菌病的新型多价减毒活细菌疫苗。 与野生型菌株MVM425相比，该疫苗主要包括没有标记基因的鳗弧菌的减毒缺失菌株，其具有显着的低毒性，但对鳗弧菌野生型菌株仍然具有免疫原性。 此外，疫苗株具有优良的针对解酒弧菌的交叉免疫保护作用。 由疫苗株制备的减毒活疫苗有效预防和治愈由鳗弧菌（V. anguillarum）和解酒藻（V. alginolyticus）的野生型菌株产生的鱼的弧菌病。

    Brushless Dc Motor Control Method and Brushless Dc Motor Controller
    23.
    发明申请
    Brushless Dc Motor Control Method and Brushless Dc Motor Controller 有权
    无刷直流电动机控制方式和无刷直流电动机控制器

    公开(公告)号：US20080231217A1

    公开(公告)日：2008-09-25

    申请号：US10585169

    申请日：2004-12-29

    申请人： Minxian Zhong ,  Bin He ,  Xiaodong Yao ,  Junzhong Zou

    发明人： Minxian Zhong ,  Bin He ,  Xiaodong Yao ,  Junzhong Zou

    IPC分类号： H02P6/18

    CPC分类号： H02P6/182 ,  H02P6/181 ,  H02P6/34

    摘要： The present invention discloses a control technology for brushless DC motor, in which firstly it is to build or import a motor running parameters' database, then detect the signals always running and the signals closely relevant to the rotor's rotating state such as the voltage and the current, and process these signals and figure out the signals about the rotor's position. Wherein these detected signals should be filtered before being used, and the best filter is the low-pass filter to cut out the high frequency components, and the cut-off frequency of the low-pass filter are determined by the motor running voltage U and PWM signal width when the motor is running at no load, finally determine if the motor is working properly by means of the motor running parameters stored in the database in advance, that is to determine if the detected value is identical with the one predicted from the database. Depending on the results from the detecting and comparison above, the control signal is generated to adjust the motor running state. With the technical method in this invention, the position sensor is not needed. This reduces the motor's external wiring amounts and the wiring complexity. Also the motor's seal is improved. Meanwhile, it is possible to measure the rotor's position accurately in any state according to this invention technology. Thus the motor running state can be controlled properly.

    摘要翻译： 本发明公开了一种无刷直流电动机的控制技术，其中首先是建立或导入运行参数数据库的电机，然后检测始终运行的信号和与转子旋转状态密切相关的信号，如电压和 电流和处理这些信号，并找出关于转子位置的信号。 其中这些检测信号应在使用前进行滤波，最佳滤波器是用于切断高频分量的低通滤波器，低通滤波器的截止频率由电机运行电压U和 当电机无负载运行时的PWM信号宽度，最后通过预先存储在数据库中的电机运行参数确定电机是否正常工作，即确定检测值是否与从 数据库。 根据上述检测和比较的结果，产生控制信号以调节电机运行状态。 利用本发明的技术方法，不需要位置传感器。 这样可以减少电机的外部接线量和布线的复杂性。 此外，电机的密封件也得到了改进。 同时，根据本发明的技术，可以在任何状态下精确地测量转子的位置。 因此可以正确控制电机运行状态。

    NEW METHOD FOR DETECTING AND QUANTIFYING RNA
    24.
    发明申请
    NEW METHOD FOR DETECTING AND QUANTIFYING RNA 有权

    公开(公告)号：US20230133910A1

    公开(公告)日：2023-05-04

    申请号：US17907055

    申请日：2021-03-29

    申请人： EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

    发明人： Yi YANG ,  Xianjun CHEN ,  Xin XIE ,  Ni SU

    IPC分类号： C12Q1/6876 ,  C12Q1/6816

    摘要： The present disclosure relates to an aptamer nucleic acid molecule, a complex containing the aptamer and fluorophore small molecules, a method for detecting intrecellular or extracellular RNA, DNA or other target molecules, as well as a kit containing the aptamer. The aptamer of the present disclosure can specifically bind to fluorophore small molecules, and can significantly improve their fluorescence intensity under light excitation at suitable wavelength.

    A precursor solution, a perovskite solar cell and a preparation method thereof
    26.
    发明申请
    A precursor solution, a perovskite solar cell and a preparation method thereof 有权

    公开(公告)号：US20230086554A1

    公开(公告)日：2023-03-23

    申请号：US17630356

    申请日：2021-04-28

    申请人： EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

    发明人： Shuai Gu ,  Lei Xing ,  Jianguo Yu

    IPC分类号： H01L51/44 ,  H01L51/00 ,  C09K11/08 ,  C09K11/02

    摘要： The disclosure provides a precursor solution, a perovskite solar cell and a preparation method thereof. The solute of the precursor solution includes a metal halide, the solvent of the precursor solution is an organic solvent, and the precursor solution contains nanobubbles, which have a diameter not more than 1000 nm, and the zeta potential of the precursor solution does not exceed −20 mV. The method of preparing the precursor solution includes: (1) preparing an organic solvent containing nanobubbles; (2) dissolving a solute in the organic solvent containing nanobubbles. The precursor solution of the disclosure has a very low zeta potential, and the nanobubbles can exist stably in the organic solvent(s) for up to one month. When comparing with traditional methods for preparing the precursor solution of the perovskite cells, the method for preparing the precursor solution of the disclosure can effectively improve the stability, reproducibility and solubility of the metal halide in the organic solvent(s).

    MACHINING PATH COORDINATION METHOD FOR BILATERAL ULTRASONIC ROLLING OF BLADE SURFACES
    28.
    发明申请
    MACHINING PATH COORDINATION METHOD FOR BILATERAL ULTRASONIC ROLLING OF BLADE SURFACES 有权

    公开(公告)号：US20220324067A1

    公开(公告)日：2022-10-13

    申请号：US17764136

    申请日：2020-05-20

    申请人： EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

    发明人： Xiancheng ZHANG ,  Kaiming ZHANG ,  Shulei YAO ,  Shuang LIU ,  Feng CHENG ,  Shantung TU

    IPC分类号： B23P9/02

    摘要： Provided is a bilateral ultrasonic rolling processing track coordination method for a blade surface, the method comprising: step S1, performing layering processing on a blade to acquire a contour curve of “A”-shaped and “n”-shaped blade edges of a blade model at different heights; step S2: determining the endpoints of a blade processing track; and step S3: planning the thickness and the rotation angle of the blade, comprising: step S31, solving a main direction angle αmain of the contour curve; step S32, solving the thickness d of the blade; step S33, solving a rotation angle required by blade processing when the blade edge is “A”-shaped; and step S34, solving the rotation angle required by blade processing when the blade edge is “n”-shaped. According to the method, blade deformation generated by an ultrasonic rolling force is reduced, the processing efficiency is improved, and the blade processing precision is also improved.