Deflector Disc of Disc Tube Membrane Module

    公开(公告)号:US20210095703A1

    公开(公告)日:2021-04-01

    申请号:US16746037

    申请日:2020-01-17

    Abstract: The present invention discloses a deflector disc of a disc tube membrane module, including a deflector disc body, radial water distribution ribs, an inner support ring and an outer support ring. a first end and a second end of the radial water distribution rib are respectively fixedly connected with an inner edge of the deflector disc body and an outer edge of the inner support ring, an annular boss is arranged on the front side of the inner support ring, a seal ring groove is respectively arranged at corresponding positions of the front side and back side of the inner support ring multiple yielding water collecting grooves are annularly and uniformly distributed on the inner surface of the inner support ring and an inner edge of the outer support ring is fixedly connected with an outer edge of the deflector disc body.

    SCYLLA PARAMAMOSAIN ANTIMICROBIAL PEPTIDE SPARAMOSIN AND APPLICATION THEREOF

    公开(公告)号:US20210061865A1

    公开(公告)日:2021-03-04

    申请号:US16944724

    申请日:2020-07-31

    Abstract: Provided is an antimicrobial peptide Sparamosin from Scylla paramamosain. The Sparamosin mature peptide and its functional domain Sparamosin26-54 were synthesized by solid-phase synthesis with a purity of over 95%. Both Sparamosin and Sparamosin26-54 exhibit strong antimicrobial activity. More importantly, Sparamosin26-54 has strong antifungal activity and could inhibit the growth of a variety of yeasts and filamentous fungi. Based on the potent antimicrobial activities of Sparamosin and Sparamosin26-54, both peptides could be developed as alternatives for conventional antibiotics, antimicrobial agents, feed additives in aquaculture and livestock, preservatives, and mold inhibitors.

    Pressurized carbonation reaction apparatus and its method

    公开(公告)号:US10913040B2

    公开(公告)日:2021-02-09

    申请号:US15826433

    申请日:2017-11-29

    Abstract: A pressurized carbonation reaction apparatus and method thereof are provided. The apparatus comprises: an atomizing gas tank, a plurality of compressors, a plurality of buffer tanks, a plurality of pre-heaters, a pressurized liquid tank, a nozzle, a raw material tank, a carbon dioxide tank, a high-pressure reactor, a raw product tank, a feed pump, a plurality of pressure display gauges, a plurality of temperature controllers with display gauges and a plurality of back pressure valves. The method comprises: dissolving a solid material in a solvent, and storing a resulting liquid material in the raw material tank; introducing gas in the carbon dioxide tank to the high-pressure reactor, controlling temperatures of the high-pressure reactor and the pressurized liquid tank, and pumping, by the feed pump, the liquid material into the pressurized liquid tank to ensure a pressure difference between the pressurized liquid tank and the high-pressure reactor; opening a second check valve, and ensuring that the liquid material reacts with a carbon dioxide atmosphere in the high-pressure reactor after being atomized via the nozzle under a stable pressure difference between the high-pressure reactor and the pressurized liquid tank; and ensuring that when the liquid material in the high-pressure reactor is at a corresponding liquid level, a fifth check valve is opened and discharge continues to obtain a reaction product.

    NMR multi-dimensional method for measuring coupling constants within several coupling networks

    公开(公告)号:US10782255B2

    公开(公告)日:2020-09-22

    申请号:US16315084

    申请日:2018-01-08

    Abstract: This invention provides a NMR multi-dimensional method for measuring coupling constants within several coupling networks. At first, a 90° hard pulse was performed to flip the magnetization from the Z axis to the XY plane. After t1/2, a selective 180° pulse is implemented with a simultaneous Z-direction gradient, thus reversing different protons at different slices. Then the PSYCHE element is implemented. After another t1/2, the gradient G1 and Gp are implemented. At last, the EPSI readout is used to simultaneously record both the chemical-shift and the spatial information. As a result, from different specific slices, we can extract the scalar couplings between the proton reversed at this slice and other protons. These couplings lead to splittings in the indirect dimension, from which relevant coupling constants can be measured.

    METHOD FOR ANTI-CORROSION TREATMENT OF METALLIC COPPER-CONTAINING MATERIALS

    公开(公告)号:US20200224320A1

    公开(公告)日:2020-07-16

    申请号:US16641780

    申请日:2018-08-17

    Abstract: An anticorrosion treatment method for a copper-containing material comprises: carrying out a sealed and pressurized reaction on a copper-containing material and a stabilizer in presence of a polar solvent and any assistant, the stabilizer being a compound capable of providing formates, so that the formates are adsorbed on the surface of the copper-containing material. In the method, formates are modified on the surface of the copper-containing material, accordingly, the oxidation resistance capability and the stability of the copper-containing material can be significantly improved while the electrical conductivity of the copper-containing material is not reduced, and the corrosion resistance of the copper-containing material and especially, the salt and alkali corrosion resistance of the copper-containing material are significantly improved.

    METHOD FOR EXTRACTING GEAR TOOTH PROFILE EDGE BASED ON ENGAGEMENT-PIXEL IMAGE EDGE TRACKING METHOD

    公开(公告)号:US20190285396A1

    公开(公告)日:2019-09-19

    申请号:US16183737

    申请日:2018-11-08

    Abstract: A method for extracting a gear tooth profile edge based on an engagement-pixel image edge tracking method includes defining a transmission ratio relationship between a cutter and an envelope tooth profile, setting a cutter profile step size and an envelope step size, acquiring instantaneous contact images at different engaging times, and performing a binarization processing on each curve envelope cluster image; sweeping a boundary of an envelope curve cluster, acquiring pixel points of the edge; preliminarily tracking a tooth profile edge, and then performing a secondary extraction and compensation on the pixel points; calibrating coordinates of a cutter profile; extracting a pixel coordinate of an instantaneous engaging point; converting the pixel points among different instantaneous engaging images; extracting a final tooth profile coordinate of the gear, and performing a tooth shape error analysis and a contact line error analysis.

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