59results about How to "Improve the activation effect" patented technology

The invention relates to the field of building materials, and particularly discloses a coal gangue activation treatment method, prepared calcined coal gangue and application, the treatment method comprises the following steps: pretreatment: crushing and screening coal gangue to obtain coal gangue particles; the coal gangue particles are treated in a eutectic solvent, ultrasonic-assisted treatment is carried out for 2-3 h, pretreated coal gangue is obtained after water washing, the eutectic solvent comprises an HBA component and an HBD component, the HBA component is a mixture of choline chloride and an amide compound, and the HBD component is a mixture of a carboxylic acid mixture and polyhydric alcohol; calcining: calcining the pretreated coal gangue at 400-450 DEG C to obtain calcined coal gangue, the invention also discloses the calcined coal gangue prepared by the method, and the method has the characteristic of realizing coal gangue activation treatment under lower energy consumption.

The present invention relates to the field of microbial technology, and in particular to a strain of Pseudomonas fluorescens LSOJM27 and its application and bacterial agent. The Pseudomonas fluorescens LSOJM27 was deposited in the China Center for Type Culture Collection on December 29, 2022, with a deposit number of M 20222101. The strain provided by the present invention has a strong phosphate solubilizing ability and is suitable for activating phosphorus in cultivated soil. The phosphate solubilizing bacteria can significantly increase the content of available phosphorus in cultivated soil and reduce the application of phosphate fertilizers.

The invention discloses a fuel cell rapid activation method, and relates to the technical field of fuel cells, and the activation method comprises the steps of early-stage preparation, electrode pretreatment, activation reagent injection, activation treatment, post-treatment and evaluation and optimization. The method has the advantages that the electrochemical impedance spectrometer is used for state inspection of the electrode and other components in the electrode pretreatment stage, the reliability of the fuel cell to be detected is ensured, the surface of the electrode is deeply cleaned through the cleaning agent and the ultrasonic cleaning machine, dust, oil stains and impurities on the surface of the electrode can be effectively removed, and the detection accuracy is improved. Meanwhile, the microstructure and chemical composition of the surface of the electrode are improved by utilizing a plasma technology, and the catalytic activity and corrosion resistance of the electrode are improved, so that the activation efficiency and the operation stability of the fuel cell are improved, and potential abnormities can be found and treated in time by evaluating the performance in real time; and the fuel cell is ensured to operate in an optimal state.

The invention relates to a treating agent and system for recovering the performance of a recoverable drilling fluid. The treating agent comprises an activating agent for recovering the performance of the recoverable drilling fluid, a modifying agent for recovering the performance of the recoverable drilling fluid and a stabilizing agent for recovering the performance of the recoverable drilling fluid. The system comprises a mixer, the mixer is communicated with a liquid inlet pipe capable of recycling drilling fluid, the liquid inlet pipe is respectively communicated with an activator solution storage device, a modifier solution storage device and a stabilizer solution storage device through pipelines, and a stirring device is arranged in the mixer. The activating agent, the modifying agent and the stabilizing agent are mixed into the recyclable drilling fluid to be treated to be uniformly stirred, and the mixer adopts a stirring device which rotates in the inner direction and the outer direction, so that the mixing efficiency of the activating agent, the modifying agent, the stabilizing agent and the recyclable drilling fluid is effectively improved. According to the method, the treatment effect is good, the high-value drilling fluid can be repeatedly used, the treatment cost of the recyclable drilling fluid is reduced, the treatment efficiency is improved, and the performance of the recyclable drilling fluid is rapidly recovered.

The invention relates to the technical field of immune cell culture, in particular to an immune cell culture data monitoring method and system based on activation analysis. When the immune cell culture equipment monitors that the signal protein is conducted on the abnormal standard signal channel, the real-time metabolic network is reduced based on the interference degree of the abnormal standard signal channel on the metabolic pathway, the metabolic enzyme concentration is calculated and analyzed, and a metabolic activity monitoring reference is generated; if it is monitored and detected in real time that unreasonable metabolism conditions exist in metabolic data of immune cell culture, peak integral deviation parameters for cell factor compensation are constructed based on the metabolic enzyme concentration deviation value of the metabolic activity monitoring benchmark to conduct injection compensation regulation and control on cell factors of the cultured immune cell sample. According to the method, the abnormal proliferation data, the abnormal proliferation-causing signal path data and the metabolic data in the immune cell culture process can be subjected to rapid and accurate activation analysis, so that the immune cell activation performance can be better optimized, and the culture quality is improved.

The invention discloses an antigen peptide polymer vesicle tumor vaccine as well as a preparation method and application thereof. The antigen peptide polymer vesicle tumor vaccine is obtained by assembling and cross-linking a polymer pre-grafted with antigen peptide and a block polymer and loading an immunologic adjuvant through electrostatic interaction. The vesicle system disclosed by the invention has the advantages of small size, simplicity and controllability in preparation, excellent biocompatibility, high in-vivo circulation stability, targeting of main immune organs, intracellular delivery of antigen peptides and the like. The vesicle nano vaccine displaying the antigen peptide on the surface and encapsulating the immunologic adjuvant can promote dendritic cell maturation and antigen presentation, improve the specific response of mice to tumor-associated antigens, effectively inhibit tumor growth, remarkably prolong the lifetime of tumor-bearing mice and induce a strong immune protection effect, and is high in safety and easy to popularize. A multifunctional'ready-to-use 'nano vaccine concept is embodied, a flexible platform is provided, and different peptide antigens and / or adjuvants can be used for treating different cancers.

The invention relates to an easily-activated Ti-Fe-Y-Mn-Zr-Co-Zn-based hydrogen storage alloy and a preparation method thereof, belongs to the technical field of hydrogen storage alloy materials, and solves at least one of the problems of high activation difficulty, long activation period, poor hydrogen absorption and desorption dynamic performance and the like of a Ti-Fe-based hydrogen storage alloy in the prior art. The invention provides a Ti-Fe-Y-Mn-Zr-Co-Zn based hydrogen storage alloy easy to activate, the chemical formula of the hydrogen storage alloy is Ti 1.15, Fe 0.8, Y 0.03, Mn 0.35-x-y-z ZrxCoyZnz, x, y and z are atomic ratios, x is larger than or equal to 0.05 and smaller than or equal to 0.15, y is larger than or equal to 0.02 and smaller than or equal to 0.1, and z is larger than or equal to 0.02 and smaller than or equal to 0.1. The Ti-Fe-Y-Mn-Zr-Co-Zn based hydrogen storage alloy provided by the invention obtains good activation performance and hydrogen absorption and desorption performance by means of component design and preparation process improvement, can be activated at one time under the conditions of 30 DEG C and 3 MPa, and has the hydrogen storage capacity of more than or equal to 1.69 wt.%, the hydrogen absorption platform pressure of more than or equal to 0.39 MPa and the hydrogen desorption platform pressure of more than or equal to 0.3 MPa.

The invention provides a supported catalyst and a preparation method thereof, and belongs to the technical field of hydrogenation catalysts, and the preparation method comprises the following steps: preparing a double-ligand nickel compound solution, dissolving tert-butyl modified bis (1-methylimidazolyl) ethane and 1, 10-phenanthroline in absolute ethyl alcohol, stirring, adding nickel salt, and uniformly stirring again to obtain the double-ligand nickel compound solution; the preparation method comprises the following steps: preparing an aluminum oxide-silicon oxide composite carrier, adding a caffeine solution and an alkali solution into a mixed solution of an aluminum precursor solution and a silicon precursor solution, uniformly stirring, gelatinizing, and carrying out two-step calcination to obtain the aluminum oxide-silicon oxide composite carrier, immersing the aluminum oxide-silicon oxide composite carrier into a double-ligand nickel compound solution, uniformly stirring, and drying to obtain the catalyst. And filtering, washing and drying to obtain the supported catalyst. According to the technical scheme provided by the invention, the purpose of efficient hydrogenation of the supported catalyst is achieved.

The invention provides a preparation method of porous carbon for a silicon-carbon negative electrode material, and belongs to the field of lithium ion battery negative electrode materials. The preparation method of the porous carbon for the silicon-carbon negative electrode material comprises the following steps: crushing and grading, activating and pore-forming, washing and purifying, and carbonizing at high temperature. According to the preparation method of the porous carbon for the silicon-carbon negative electrode material, the technical problems that the yield of the porous carbon for the current silicon-carbon negative electrode material is difficult to increase, the activation process is difficult to control, the activation efficiency is low, the activation effect is poor and the metal pollution prevention and control cost is high are solved, and meanwhile, the uniformity of the pore structure of the porous carbon for the silicon-carbon negative electrode material is further improved; the quality of porous carbon is improved; the production efficiency is improved; and the production cost is reduced.

The present invention belongs to the technical field of heterogeneous catalysts, and particularly relates to a nickel-based sulfur-resistant catalyst for selective hydrogenation of propyne to propylene, a preparation method and an application thereof. A nickel-based sulfur-resistant catalyst for selective hydrogenation of propyne to propylene, the catalyst is composed of a main active component, a first co-metal, a second co-metal and a composite carrier, the main active component is nickel, accounting for 0.5% to 5.0% of the mass of the composite carrier; the first co-metal accounts for 0.5% to 5.0% of the mass of the composite carrier based on the total mass of metal atoms; the second co-metal accounts for 0.5% to 5.0% of the mass of the composite carrier based on the total mass of metal atoms. The catalyst prepared by the method has the advantages of small active metal nickel grains, high specific surface area, good sulfur resistance, etc., and can show excellent conversion rate and propylene selectivity in the reaction of selective hydrogenation of propyne to propylene.

The invention discloses a palladium-supported catalyst for propane catalytic combustion and a preparation method and application thereof. According to the method, a coprecipitation method is utilized under stirring, polyvinylpyrrolidone is used as a guiding agent, cerium dioxide is used as a metal precursor, palladium nitrate is used as a doping agent, and sodium hydroxide and sodium carbonate are used as chemical environment regulating agents to prepare a metal-doped catalyst; the metal-doped catalyst is used in a propane catalytic combustion reaction, efficient degradation of propane is achieved, the catalytic conversion temperature of precious metal is remarkably reduced, and the metal-doped catalyst has the advantages that the one-way propane conversion rate is high, and the reaction is mild; relates to the field of petrochemical engineering.

The invention discloses an oxidizing agent production system for a precious metal leaching process. The oxidizing agent production system comprises a mother liquor storage barrel, an electric synthesis device, a primary activation device, a product solution storage barrel, a filtering and concentrating device and an evaporative crystallization device which are connected in sequence. By adopting the production system provided by the invention, the activation property of the oxidant product is improved.

The invention discloses a tailing-free treatment method for flotation tailings of a metal mine, which comprises the following steps: adding oxalic acid into ore pulp of the flotation tailings of the metal mine to adjust the pH value of the ore pulp, and then adding butyl xanthate and terpenic oil for sulfur roughing; performing blank concentration on a foam product obtained by sulfur roughing for three times to obtain sulfur concentrate; the method comprises the following steps: performing low-intensity magnetic separation on sulfur separation tailings obtained by sulfur roughing, performing sedimentation desliming on the tailings obtained by low-intensity magnetic separation to obtain micron-sized fine silt and a crude product, performing roughing on the crude product for five times, adding an adjusting agent of oxalic acid and 2-hydroxypropane-1, 2, 3-tricarboxylic acid combination, lauryl amine and sodium oleate in each time of roughing, blank concentration is conducted on a foam product 1 obtained through first-time roughing to obtain feldspar concentrate 1, foam products and micron-sized fine silt obtained through subsequent roughing are filtered and dried to obtain feldspar concentrate 2, and after fifth-time roughing is finished, ore pulp is filtered and dried to obtain quartz concentrate. The problem of land and environment damage caused by tailing stockpiling can be solved, and tailing resource utilization is achieved.

The invention relates to the fields of preparation of a composite functional aerogel carbon material and antibiotic wastewater purification, in particular to a method for creating a functional aerogel carbon high-long-acting purification material based on a waste disposable mask as a carbon source. Comprising the following steps: preparing a precursor solution taking a waste disposable mask as a carbon source, carrying out metal grafting on a precursor to obtain a base material, freeze-drying the base material to prepare metal-grafted functional aerogel, uniformly dispersing the product at the bottom of a porcelain boat, placing the porcelain boat in a tubular furnace, carrying out high-temperature pyrolysis in an argon atmosphere, and naturally cooling to room temperature to obtain the metal-grafted functional aerogel. The functional carbon aerogel with the high and long-acting purification effect is obtained. According to the material, polypropylene serving as a main component of a middle layer of a waste disposable medical mask serves as a carbon source, a metal polyphenol network is constructed by waxberry tannin and magnesium element to form the biomass carbon composite material, synthesis steps are simple and easy to implement, reaction conditions are easy to control, raw material components needed for preparation are low in price, and environmental benefits are achieved. The prepared carbon aerogel material activates peroxydisulfate (PDS), so that rapid degradation and purification of various types of antibiotics represented by oxytetracycline can be efficiently realized.

This invention discloses a nitrogen-phosphorus-boron-iron co-doped coconut shell activated carbon carrier, its preparation method, and its application. The method includes the following steps: S1, pulverizing coconut shell activated carbon and activating it with Ar / steam to obtain pretreated activated carbon; S2, mixing chitosan solution and urea solution, adding phytic acid, adjusting the pH to 5.5-6.0, and stirring to obtain a wetting agent; S3, adding the pretreated activated carbon to the wetting agent, heating, stirring, then filtering, washing, and vacuum drying to obtain nitrogen-phosphorus pre-activated activated carbon; S4, dissolving ferric ammonium citrate and sodium citrate in deionized water, adding ethylene glycol, stirring, then adding the nitrogen-phosphorus pre-activated activated carbon, heating, stirring again, then adding a potassium borohydride mixed solution dropwise, and calcining to obtain a nitrogen-phosphorus-boron-iron co-doped coconut shell activated carbon carrier. The nitrogen-phosphorus-boron-iron co-doped coconut shell activated carbon carrier provided by this invention, after loading a metal catalyst, can solve the common problems of low conversion rate and poor selectivity in nitro hydrogenation reactions.

The invention discloses a Co3O4-Cu2-xS composite photo-thermal catalyst as well as a preparation method and application thereof. The composite photo-thermal catalyst is prepared by taking a surfactant as a bridge and compounding Co3O4 and Cu2-xS. The composite photo-thermal catalyst has a reduced band gap width, can effectively promote migration and separation of photon-generated carriers, enhances the absorption efficiency of visible light-near infrared light, and shows excellent photo-thermal conversion performance. The composite photo-thermal catalyst can be used for constructing a Co3O4-Cu2-xS + PMS + NIR catalytic system, and peroxymonosulfate is activated under the irradiation of near-infrared light so as to degrade antibiotics in water. Experiments prove that the Co3O4-Cu2-xS + PMS + NIR system disclosed by the invention can achieve the degradation rate of 99% on levofloxacin within 20 minutes, and the generation efficiency of active species is remarkably improved through the synergistic effect of a photothermal effect and interface activation. The catalyst has broad-spectrum degradation activity on various antibiotics, keeps efficient and stable catalytic performance in a wide pH range, and shows excellent ion interference resistance and adaptability to various water bodies.

The invention discloses a preparation method of functionalized magnetic beads with surface-coupled photoaffinity chains. The method comprises the following steps: activating carboxyl magnetic beads, incubating the activated carboxyl magnetic beads with photoaffinity linking chains to obtain carboxyl magnetic beads loaded with the photoaffinity linking chains, and blocking the surfaces of the carboxyl magnetic beads loaded with the photoaffinity linking chains with a blocking liquid to obtain the functionalized carboxyl magnetic beads. The photoaffinity linking chains use trifluoromethylphenyldiaziridine as photosensitive groups and have good chemical stability. Carbene intermediates generated after photolysis can be irreversibly combined with most small molecules and are relatively stable. A large number of different types of small molecules can be directly covalently docked to the surface of the functionalized carboxyl magnetic beads without the need for structure-activity relationship (QSAR) research data and corresponding chemical modifications. The small molecules can be used to fix a large number of small molecules with different structures in a complex system. The coupling of the small molecules with the functionalized magnetic beads can be achieved by only ultraviolet irradiation in the whole process. The method is fast and efficient, simple to operate, and has wider applicability.

The invention belongs to the field of chemical synthesis, and in particular to a method for preparing 3-methoxy-N, N-dimethylpropionamide, comprising the following steps: adding dimethylamine and 3-methoxy propionyl chloride to a reaction vessel, then adding a modified catalyst, and reacting to obtain 3-methoxy-N, N-dimethylpropionamide; the method for preparing the modified catalyst comprises the following steps: S1, preparing raw materials; S2, adding a basic catalyst to 4-aminostyrene to generate a modified basic catalyst; S3, adding nano-alumina to methyl methacrylate, and reacting to obtain a product modified carrier; S4, adding the modified basic catalyst and the modified carrier to an organic solvent, then adding divinylbenzene and an initiator, standing after the reaction, and then taking out the modified carrier to obtain a modified catalyst. The present invention constrains alkali metals by the framework of a three-dimensional mesh structure, thereby hindering the migration of metal nanoparticles, and is conducive to the synthesis of 3-methoxy-N, N-dimethylpropionamide.

The invention discloses a catalyst as well as a preparation method and application thereof. The catalyst comprises a Mo2C carrier with a nano structure and a PtO nanocluster loaded on the Mo2C carrier. The method comprises the following steps: mixing a Mo2C carrier with a nanostructure with a platinum-containing metal compound solution to obtain a mixed solution; carrying out stirring reaction on the mixed solution at 50-95 DEG C for 0.5-5 hours, and continuously introducing a reaction atmosphere; and after the reaction is finished, filtering, washing and drying to obtain the catalyst. According to the preparation method, synthesis of PtO can be accurately controlled, meanwhile, sufficient anchoring points are provided for the PtO nanocluster by utilizing the large specific surface area and rich surface dangling bonds of the Mo2C nanostructure, the uniformity, dispersity and stability of loading of the PtO nanocluster on the surface of the Mo2C material are greatly improved, good electro-catalysis hydrogen evolution performance is shown, and the preparation method is suitable for industrial production. The effective load rate of Pt is greatly improved, the use amount of Pt is reduced, and the cost of the catalyst is reduced.

The first aspect of the invention provides the preparation method of the lithium titanate battery negative electrode titanium tab, and the preparation method comprises the following steps: S1, cutting a titanium metal belt into sections, then carrying out ultrasonic cleaning to remove oil, removing impurities, rinsing and drying; s2, carrying out surface treatment on the titanium metal strip; s3, fixing the treated titanium metal belt and tab glue by using a PET (Polyethylene Terephthalate) film and a double-faced adhesive tape; s4, combining the tab glue with the titanium metal belt through a hot pressing process; and S5, cooling and cutting. The metal titanium is used as tab metal and has good conductivity, corrosion resistance and mechanical strength, the volume of the battery is not changed in the charging and discharging process, the cycle performance of the battery can be improved, and the service life of the battery can be prolonged. The lithium titanate battery negative electrode titanium tab prepared by the invention can be safely used in a wider temperature range, and particularly can still keep good performance in a low-temperature environment, a titanium material and a lithium titanate negative electrode material have similar potential, the polarization and internal resistance of the battery can be reduced, and the efficiency and power of the battery can be improved.

The application relates to the technical field of methane conversion catalytic materials, in particular to a preparation method of metal-nonmetal dual-site synergistic catalytic material and application of the metal-nonmetal dual-site synergistic catalytic material in methane conversion, and the preparation method of the metal-nonmetal dual-site synergistic catalytic material comprises the following steps: S1, zinc peroxide precursor solution preparation; S2, in-situ nitrogen element doping; S3, Au loading; and S4, metal-nonmetal dual-site synergistic catalytic material preparation. The application provides the preparation method of the metal-nonmetal dual-site synergistic catalytic material and the application of the metal-nonmetal dual-site synergistic catalytic material in methane conversion, so as to solve the problems of low methanol selectivity, insufficient methane conversion activity and easy overoxidation in the related art.

The invention discloses a water supply plant sedimentation tank floc recycling system and method and a composite carrier material, and belongs to the technical field of water supply plant water treatment. The system comprises a monitoring regulation and control module which is used for collecting floc state data of a sedimentation tank in real time and outputting a control signal according to the floc state data; the composite carrier material supply module is used for adding a composite carrier material into the floc activation reactor according to the control signal; the floc backflow mechanism is used for adjusting recycled floc entering the floc activation reactor according to the control signal; and the floc activation reactor is used for receiving the composite carrier material and the recycled floc and carrying out three-stage activation treatment under the action of an internal flow field to obtain regenerated floc. Solid waste recycling is achieved through floc recycling, and the sludge discharge amount is reduced; and the monitoring regulation and control module combines fuzzy PID with an LSTM model, accurately matches processing requirements, and improves operation stability. According to the invention, the technical problem of floc recycling and reusing is solved.

The invention relates to the field of rubber, in particular to a natural rubber material with high tear resistance and high resilience and a preparation method thereof. Allyl glycidyl ether is used as a monomer and potassium tert-butoxide is used as an initiator. Polyallyl glycidyl ether is prepared as an unsaturated polyether skeleton by anionic ring-opening polymerization, sulfonic acid anion groups and thiolated nano zinc oxide are sequentially introduced into side chains by mercapto-ene click reaction to obtain polyether anion-modified zinc oxide, and furan carboxylic acid imidazolate polyionic liquid is introduced on the surface of the polyether anion-modified zinc oxide by electrostatic assembly to obtain composite zinc oxide; furan carboxylic acid imidazolate polyionic liquid is used to wet-modify a reinforcing agent, and the furan carboxylic acid imidazolate polyionic liquid is loaded on the surface of the reinforcing agent by controlling the mass ratio thereof, thereby reducing the polarity of the surface thereof, improving the uniformity of the dispersion of the reinforcing agent in the rubber matrix, and improving the mechanical properties of the rubber material.

The invention provides hydrogen storage alloy pulverizing equipment which comprises a feeding system, a material grinding system and a discharging pipeline, the feeding system is fixed to the top face of a rack table top through a fixing support, the material grinding system comprises a material grinding rolling barrel, a shell and a material grinding motor, the material grinding rolling barrel is installed in the shell in a crossing mode, the shell is fixed to the top face of the rack table top, and the material grinding motor is arranged in the shell. A feeding port of the grinding roller is communicated with a feeding pipeline of the feeding system, and a discharging pipeline is arranged on the bottom surface of the table board of the rack and is communicated with the interior of the shell. The invention further provides a hydrogen storage alloy powder preparation method. The hydrogen storage alloy powder preparation equipment is simple in structure and convenient to use; according to the hydrogen storage alloy powder preparation method, the hydrogen storage alloy powder preparation equipment is adopted for powder preparation, the method is simple and controllable, the hydrogen absorption and hydrogen desorption principle of the hydrogen storage alloy is utilized, the activation speed of the hydrogen storage alloy can be increased, and therefore the activation performance of the hydrogen storage alloy powder is improved.

The invention relates to the technical field of VOCs waste gas treatment, in particular to a water-resistant catalyst as well as preparation and application thereof. The invention provides a preparation method of a water-resistant catalyst. The preparation method comprises the following steps: mixing manganese salt and a template agent A in water, and performing hydrothermal treatment to obtain a precursor A; mixing the precursor A, cobalt salt and a template agent B in water, and performing hydrothermal treatment to obtain a precursor B; calcining the precursor B to obtain the water-resistant catalyst. According to the cobaltosic oxide composite material which is prepared by firstly preparing a manganese precursor, loading a cobalt precursor on the manganese precursor and finally calcining and takes sea-urchin-shaped manganese dioxide as a substrate and is loaded on the substrate, which is provided by the invention, the cobaltosic oxide composite material is proved to be capable of carrying out catalytic oxidation treatment on Cl-VOCs under a low ozone amount in a water-containing environment.

The invention provides a preparation method and application of a calcium carbonate powder modified whitening integrated auxiliary agent. The preparation method comprises the following steps: slowly dripping DSD acid, water and a saturated Na2CO3 solution into a cyanuric chloride ice-water mixture, controlling the temperature at 3-5 DEG C for reaction, then adding ethanolamine and p-aminobenzoic acid, adjusting the pH value to 8 with a saturated Na2CO3 solution, heating the temperature to 40-45 DEG C for reaction for 3.5 hours; adding diethylaminoethyl methacrylate, maintaining the pH value at 9 with a saturated Na2CO3 solution, heating the temperature to 85-90 DEG C for reaction for 6 hours, and cooling the mixture to room temperature; adding sodium stearate, sodium dodecylbenzene sulfonate and water, heating and stirring the mixture to obtain the modified whitening integrated auxiliary agent. It is applied to calcium carbonate powder with a mesh size of 800-2000, a whiteness (CIE) of 92-94, and an oil absorption value of 33-38 g / 100 g to obtain a high-activity and high-white calcium carbonate powder with an oil absorption value of 11-13 g / 100 g, a whiteness value (CIE) increased to 96-98.5, and a whiteness value (CIE) increased by 4.0-4.5.

This invention belongs to the field of metal material corrosion protection technology, specifically relating to a highly active aluminum alloy sacrificial anode for full ocean depth and its preparation method. The sacrificial anode uses Al as the main raw material, with added alloying elements: Zn, In, Ga, Mg, Ti, Ca, and Mn. The preparation method involves first heating Al and Zn to 750–1000℃, then adding In, Ga, Mg, Ti, Ca, and Mn, and finally casting at a temperature of 700–750℃. By adding Ca, an octet aluminum alloy sacrificial anode for full ocean depth is formed. The activation ability is improved by the dissolution and redeposition of In and Ga, the disruption of the continuity and density of the oxide layer by Zn and Mg, and the activation of the Al matrix surface by micron-level dot pairs. At the same time, Ti refines the grain size, resulting in a uniform and segregated distribution of alloying elements, avoiding internal self-corrosion, and improving current efficiency. It can be applied to full ocean depth environments from 0 to 10000 meters, with a current efficiency of 90–95%.

This invention provides an apophene derivative, its preparation method, and its application. The general formula of the apophene derivative structure described in this invention is shown below: Among them, R 1 C 1 -C 8 alkoxy or hydrogen, R 2 For hydroxyl or hydrogen; R 3 Selected from C 1 -C 8 Alkyl, C 1 -C 8 Alkoxy, C 2 -C 10 alkynyl group, C 2 -C 10 alkenyl, halogen, C 1 -C 8 Halogenated, cyano, nitro, or aryl. The use of the 5-hydroxytryptamine 2A receptor agonist and 5-hydroxytryptamine 2C receptor agonist described in this invention in the preparation of medicaments for the prevention and / or treatment of obesity, urinary incontinence, depression, anxiety, obsessive-compulsive disorder, epilepsy, schizophrenia, pain, diabetes, and drug addiction.

The application discloses Pseudomonas songnenensis, a microbial inoculum and application thereof, and relates to the technical field of environmental microorganisms and solid waste resource technology. The Pseudomonas songnenensis strain JP01 is preserved in the China General Microbiological Culture Collection Center, and has a preservation number of CGMCC No. 37102. The strain has salt and alkali tolerance characteristics, and can degrade coal gangue and promote the release of effective phosphorus, available potassium and effective silicon nutrients. After inoculation for 4 days, under normal conditions, the effective phosphorus content of the strain JP01 treatment group is 758.65% higher than that of the CK group; under salt and alkali conditions, the effective phosphorus content of the strain JP01 treatment group is 4.70 times that of the bacillus megaterium treatment group. The strain has good long-term colonization ability in a coal gangue-salt and alkali soil mixed substrate, and the viable cell count can still be maintained at a high level of 2.72x10 7 CFU / g after 90 days of culture. The application is suitable for coal gangue resource utilization and salt and alkali soil improvement, and has good phosphorus element activation ability and functional stability in a salt and alkali environment.

This invention belongs to the field of biomedical technology and discloses a chimeric antigen receptor targeting CD20, its gene expression construct, and its applications. The chimeric antigen receptor provided by this invention specifically includes an amino acid fragment with the sequence shown in SEQ ID NO:29 or a variant fragment having at least 85% sequence identity with SEQ ID NO:29. Its functional fragments, including the signal peptide, antigen-binding region, hinge region, transmembrane region, intracellular co-stimulatory domain, and signal transduction domain, form an organic whole, working synergistically to endow the chimeric antigen receptor with good CD20-targeting binding, T-cell activation, and cell-killing effects, demonstrating excellent application potential in the preparation of drugs for the treatment of relapsed / refractory B-cell malignancies.