Abstract: A steel plate for an advanced nuclear power unit reactor core shell cylinder and a manufacturing method for the steel plate. The steel plate comprises the following components in percentage by mass: 0.10%-0.14% of C, 0.20%-0.30% of Si, 0.30%-0.60% of Mn, P?0.006%, S?0.002%, 1.65%-1.95% of Cr, 0.80%-1.20% of Mo, 0.80%-1.20% of Ni, 0.04%-0.08% of Nb, 0.10%-0.20% of V, 0%-0.03% of Ti, 0%-0.02% of Alt, 0.001%-0.004% of Ca, 0.01%-0.03% of N, Sn?0.001%, H?0.0001%, and 0?0.0020%, and the remainder being Fe and inevitable inclusions, and an anti-high-temperature tempering embrittlement coefficient J=(Si+Mn)×(P+Sn)×104?50. The steel plate and the manufacturing method therefor can ensure the comprehensive performance requirements of the steel plate for the reactor core shell cylinder.

Abstract: A clearance monitoring system of a wind turbine, and a monitoring method and device are provided. The clearance monitoring system includes a processor and a millimeter wave radar in communication connection to the processor. The millimeter wave radar is installed on a left side portion of a nacelle of the wind turbine. The millimeter wave radar points to a movement area of the impeller and is used for monitoring movement data of each blade on the impeller in the movement area. The processor is used to receive the movement data. According to the movement data, blade clearance between each blade and a tower of the wind turbine is determined.

Abstract: Provided is a perfusion culture method for CAR-T cells. The method comprises the following steps: 1) separating peripheral blood mononuclear cells from a single blood cell of a subject, and sorting the mononuclear cells to obtain T cells; 2) carrying out activation treatment on the separated T cells by using CD3/CD28 stimulation magnetic beads; 3) infecting the activated T cells by using a lentiviral vector; 4) carrying out perfusion culture on the lentivirus-infected T cells, and harvesting CAR-T cells, wherein the composition of a serum-free culture medium, which does not contain an animal-derived component, for culturing the CAR-T cells is: AIM-V+(3-9)% ISR; and the perfusion culture comprises the following stages: the first stage: when the cell density is (0.5-1.1)×106 cells/mL, the perfusion rate is A1, and/or the second stage: when the cell density is (1.

Abstract: The present application discloses a blade fault diagnosis method, apparatus and system, and a storage medium. the method includes: acquiring a blade rotation audio collected by an audio collection device during operation of a wind turbine generator system; preprocessing the blade rotation audio based on a wind noise filtering algorithm to obtain a blade rotation audio filtered out of wind noise; dividing the blade rotation audio filtered out of wind noise to obtain audio segments corresponding to blades of the wind turbine generator system respectively; diagnosing, based on the audio segments, whether the blades each corresponding to one of the audio segments are faulty. The present application can diagnose whether a corresponding blade is faulty respectively according to the audio segments of different blades, which improves the accuracy of the diagnosis results.

Abstract: A tower clearance real-time monitoring system (100) and a method therefor. The tower clearance monitoring system (100) comprises an image capture device (101), a blade position processing device (102) and a core algorithm processing device (103). The image capture device (101) is used to capture an image of a wind turbine in an operating state, and the image comprises a blade portion and a tower portion; The blade position processing device (102) is used to determine whether the captured image represents valid data so as to send valid data to the core algorithm processing device (103). The core algorithm processing device (103) is used to use valid data to calculate a tower clearance value for a blade, and to send a calculation result to a wind turbine main control system (104) of a wind turbine.

Abstract: A clearance monitoring system of a wind turbine, and a monitoring method and device are provided. The clearance monitoring system includes a processor and a millimeter wave radar in communication connection to the processor. The millimeter wave radar is installed on a left side portion of a nacelle of the wind turbine. The millimeter wave radar points to a movement area of the impeller and is used for monitoring movement data of each blade on the impeller in the movement area. The processor is used to receive the movement data. According to the movement data, blade clearance between each blade and a tower of the wind turbine is determined.

Abstract: A video monitoring method and system for a blade of a wind turbine are provided. The method includes: calculating a pan value and a tilt value based on each of a plurality of circular arc angles when the blade of the wind turbine is in a stationary state, wherein the plurality of circular arc angles are set based on a circular arc curve on a rotational plane of the blade, which is formed with a first point as a center and a first distance as a radius; and setting the pan value and the tilt value of a video camera to the calculated pan value and tilt value, respectively, to capture the blade.

Abstract: A video monitoring method and system for a blade of a wind turbine are provided. The method includes: calculating a pan value and a tilt value based on each of a plurality of circular arc angles when the blade of the wind turbine is in a stationary state, wherein the plurality of circular arc angles are set based on a circular arc curve on a rotational plane of the blade, which is formed with a first point as a center and a first distance as a radius; and setting the pan value and the tilt value of a video camera to the calculated pan value and tilt value, respectively, to capture the blade.

Abstract: The present invention provides for a method for modifying a covalent organic framework (COF), the method comprising: contacting a COF comprising an imine group with a phenylacetylene in, or to form, a mixture, in a suitable reaction condition for converting the imine group into a quinoline group, and COF comprising a quinoline group. The present invention also provides for a superhydrophobic surface comprising a solid surface coated with or comprising the covalent organic framework (COF).

Abstract: A tower clearance real-time monitoring system (100) and a method therefor. The tower clearance monitoring system (100) comprises an image capture device (101), a blade position processing device (102) and a core algorithm processing device (103). The image capture device (101) is used to capture an image of a wind turbine in an operating state, and the image comprises a blade portion and a tower portion; The blade position processing device (102) is used to determine whether the captured image represents valid data so as to send valid data to the core algorithm processing device (103). The core algorithm processing device (103) is used to use valid data to calculate a tower clearance value for a blade, and to send a calculation result to a wind turbine main control system (104) of a wind turbine.

Abstract: The disclosure discloses a compound milk-beer lyophilized fermentation microorganism agent as well as a preparation and application thereof. The microorganism agent comprises a lyophilized microorganism agent of Kluyveromyces marxianus var. marxianus A3 and a lyophilized, microorganism agent of Saccharomyces cerevisiae TR2, wherein the ratio of the viable count of Kluyveromyces marxianus var. marxianus A3 to the viable count of Saccharomyces cerevisiae TR2 in the compound milk-beer lyophilized fermentation microorganism agent is (1.5-2.5):1. The compound fermentation microorganism agent can be applied in production of milk beer, and the product quality and production efficiency of milk beer are improved compared with single strains.

Abstract: The present invention relates to a metallocene complex with a heteroatom-containing ?-ligand, having a chemical structure represented by formula (I) as below: wherein M is a transition metal element from Group 3, Group 4, Group 5 and Group 6 in the periodic table, including lanthanides and actinides; X, being the same as or different from each other, is selected from hydrogen, halogen, an alkyl group R, an alkoxyl group OR, a mercapto group SR, a carboxyl group OCOR, an amino group NR2, a phosphino group PR2, —OR?O— and OSO2CF3; n is an integer from 1 to 4 and is not zero; the charge number resulted from multiplying n by the charge number of X equals to the charge number of the central metal atom M minus 2; Q is a divalent radical; A is a ?-ligand; and Z is a ?-ligand; the process for producing the same; a catalyst system of the same; and use of the catalyst system.

Abstract: The present invention provides for a method for modifying a covalent organic framework (COF), the method comprising: contacting a COF comprising an imine group with a phenylacetylene in, or to form, a mixture, in a suitable reaction condition for converting the imine group into a quinoline group, and COF comprising a quinolone group. The present invention also provides for a superhydrophobic surface comprising a solid surface coated with or comprising the covalent organic framework (COF).

Abstract: The present invention relates to a metallocene complex with a heteroatom-containing ?-ligand, having a chemical structure represented by formula (I) as below: wherein M is a transition metal element from Group 3, Group 4, Group 5 and Group 6 in the periodic table, including lanthanides and actinides; X, being the same as or different from each other, is selected from hydrogen, halogen, an alkyl group R, an alkoxyl group OR, a mercapto group SR, a carboxyl group OCOR, an amino group NR2, a phosphino group PR2, —ORoO— and OSO2CF3; n is an integer from 1 to 4 and is not zero; the charge number resulted from multiplying n by the charge number of X equals to the charge number of the central metal atom M minus 2; Q is a divalent radical; A is a ?-ligand; and Z is a ?-ligand; the process for producing the same; a catalyst system of the same; and use of the catalyst system.

Abstract: The present invention relates to a method of preventing misoperation about a relay protection device in a smart substation. Reversely operating CPU operation results of two operation records about the relay protection device, in order to form corresponding disassembler codes. According to disassembler codes, calculating similarity of the CPU operation results of the two operation records about the relay protection device by a structured method. Judging whether the similarity is greater than a set threshold or not. If the similarity is greater than the set threshold, the CPU operation results of the two operation records about the relay protection device to be the same, otherwise, the CPU operation results of the two operation records about the relay protection device are judged to be different. The present invention avoids the misoperations of the relay protection device on operation.

Abstract: The present invention relates to a method of preventing misoperation about a relay protection device in a smart substation. Reversely operating CPU operation results of two operation records about the relay protection device, in order to form corresponding disassembler codes. According to disassembler codes, calculating similarity of the CPU operation results of the two operation records about the relay protection device by a structured method. Judging whether the similarity is greater than a set threshold or not. If the similarity is greater than the set threshold, the CPU operation results of the two operation records about the relay protection device to be the same, otherwise, the CPU operation results of the two operation records about the relay protection device are judged to be different. The present invention avoids the misoperations of the relay protection device on operation.