23results about How to "Application advantages are obvious" patented technology

The invention discloses a method for quickly preparing large-size elastic nanofiber aerogel without freeze-drying and with low cost. The method comprises the following steps: dispersing nanofibers and polysaccharide macromolecules in water to form a dispersion liquid; carrying out solidification treatment on the dispersion liquid to form a solidified block; putting the solidified block into an ethanol solution of metal cation salt, and carrying out coordination reaction to form wet gel; and removing the solvent in the aerogel under a normal pressure condition to obtain the nanofiber aerogel. The three-dimensional nanofiber aerogel is rapidly prepared on a large scale through freeze-drying-free ice dissolution induced coordination reaction and normal-pressure drying for the first time, the three-dimensional nanofiber aerogel is composed of fibers and a macromolecular coordination cross-linked network, the fibers are firmly bonded through the macromolecular coordination network, and the three-dimensional nanofiber aerogel has an interconnected pore structure and a wide adjustable range of the pore structure and can be used for preparing the three-dimensional nanofiber aerogel. The fiber aerogel shows good mechanical properties, sound absorption, noise reduction, heat insulation and warmth retention properties, oil absorption and wave absorption properties, and has a wide application prospect.

The invention discloses a preparation method of a high-swelling semi-interpenetrating structure hydrogel for soil water retention. The method comprises the following steps: dissolving polyvinyl alcohol (PVA) at high temperature, cooling to room temperature, and sequentially adding Arabic gum (AG) and a pre-neutralized acrylic acid (AA) solution; the preparation method comprises the following steps: adding a cross-linking agent N, N '-methylenebisacrylamide (MBA) and a photoinitiator 2-hydroxy-4'-(2-hydroxyethoxy)-2-methyl propiophenone (Irgacure 2959) into a mixed solution, fully mixing, carrying out ultrasonic oscillation, and finally completing a polymerization reaction under ultraviolet irradiation to prepare the hydrogel. The method is simple in preparation process and convenient to operate, and the prepared hydrogel shows efficient water absorption capacity and a long-term water retention effect and can continuously provide required moisture for plant growth. After the gel is used for many times, the gel can still maintain good swelling performance, and the service life is prolonged. The hydrogel disclosed by the invention is suitable for the application fields of water absorption and retention in agriculture and the like.

The invention discloses a group of molecular markers related to the oil yield of carya illinoensis and application of the molecular markers, and relates to the technical field of biology. The nucleotide sequence of the SNP molecular marker is as shown in SEQ ID NO. 1-2. The molecular marker disclosed by the invention can be used for marker assisted selection (MAS) and genome selection (GS) of the carya illinoensis, so that the genetic improvement progress of the variety of the carya illinoensis can be accelerated.

The invention relates to the field of natural flavone extraction, in particular to a composite extract of ampelopsis grossedentata leaves as well as a preparation method and application of the composite extract. The preparation method of the composite extract of the ampelopsis grossedentata leaves comprises the following steps: step 1, cleaning and crushing the silybum marianum, the ampelopsis grossedentata leaves, the pineapples and the longan to obtain an initial mixed plant; 2, mixing the initial mixed plant with water, and treating under an ultrasonic power condition to obtain an ultrasonic treatment substance; 3, treating the ultrasonic treatment object under a microwave condition to obtain a microwave treatment object; step 4, adding acetobacter aceti, bacillus subtilis and white rot fungi into the microwave treated material, and fermenting to obtain a fermented mixture; and step 5, centrifuging, and collecting supernate to obtain the composite extract of the ampelopsis grossedentata leaves. The composite extract of the ampelopsis grossedentata leaves can improve the extraction efficiency of flavonoid substances, and has remarkable anti-inflammatory and anti-oxidation effects.

The invention relates to the technical field of macromolecule and aerogel materials, in particular to a chitin / chitosan aerogel material compounded with biomass calcium carbonate and a preparation method of the chitin / chitosan aerogel material. Comprising the following steps: deproteinizing, decoloring, preparing a chitin or chitosan raw material containing biomass calcium carbonate, preparing a biomass calcium carbonate / chitin or biomass calcium carbonate / chitosan solution, and preparing the biomass calcium carbonate / chitin or biomass calcium carbonate / chitosan aerogel material. The raw materials used in the method are wide in source, the content of biomass calcium carbonate is high, good biocompatibility is achieved, no extra filler needs to be added, the utilization rate of marine waste can be increased, and carbon emission generated by removing calcium carbonate and use of chemical reagents are reduced. The aerogel prepared in the invention has low density and good mechanical properties, the fire resistance and mechanical properties of the aerogel are improved, and the aerogel has wide application prospects in the fields of electromagnetic shielding, tissue regeneration and the like.

The preparation method comprises the following steps: fully mixing vanadium pentoxide and electroactive molecules, uniformly stirring and ultrasonically dispersing the mixture in an aqueous solution, carrying out a hydrothermal reaction on the obtained suspension, and filtering, washing and drying after the reaction to obtain the vanadium oxide positive electrode intercalation layer for the battery. And finally, the electroactive molecule intercalated vanadium pentoxide is obtained. Due to the intercalation of the electroactive molecules, the lattice spacing of vanadium pentoxide is enlarged, so that ions can be quickly migrated and diffused in the material. Compared with pure vanadium pentoxide, the vanadium pentoxide positive electrode material shows quicker reaction kinetics in the aqueous zinc ion battery through intercalation of the electroactive molecules, so that the rate capability is greatly improved.

The invention belongs to the technical field of microorganisms, and particularly relates to application of bifidobacterium animalis subsp. Lactis in improvement of osteoporosis. The bifidobacterium animalis subsp. Lactis BL-136 provided by the invention is preserved in Guangdong Microbial Culture Collection Center, the preservation number is GDMCC No: 67831, and verification proves that the strain has excellent capability of inhibiting osteoclast differentiation and has obvious application advantages in the aspect of relieving osteoporosis. The microgel preparation prepared from the strain can play an excellent role in relieving the osteoporosis, and the curative effect on the osteoporosis is remarkably improved. Therefore, the invention proves the curative effect of the bifidobacterium animalis subsp. Lactis BL-136 and the microgel preparation thereof in the aspect of relieving the osteoporosis, and scientific thinking and technical support can be provided for the development of medicines for treating the osteoporosis.

The invention discloses a rice LOCOs02g57520 gene and an application of the rice LOCOs02g57520 gene in regulation and control of male sterility of rice. The nucleotide sequence of the gene is as shown in SEQ ID NO. 1. According to the invention, after the LOCOs02g57520 gene is edited by adopting a CRISPR / Cas9 gene editing technology, the expressed rice plant is male sterility, and the expression property is stable and reliable. Therefore, the gene has a crucial regulation function in pollen and can provide a gene resource for cultivation of a rice male sterile line.

The invention discloses a vector system for packaging a recombinant poxvirus, the vector system comprises a first plasmid, a second plasmid, a third plasmid, a fourth plasmid and a fifth plasmid which respectively carry five sections which are sequentially segmented on the basis of a full-length genome of the poxvirus, the fifth plasmid carries a reverse terminal repeat (RITR) fragment and an LITR fragment of the genome of the poxvirus, and the RITR fragment and the LITR fragment are sequentially segmented on the basis of the full-length genome of the poxvirus. The two ends of each plasmid are provided with overlapping fragments which are subjected to homologous recombination with adjacent plasmids, the 5'end of the first plasmid is adjacent to the 3 'end of the fifth plasmid, and the 3' end of the fourth plasmid is adjacent to the 5 'end of the fifth plasmid. The invention also discloses a method for packaging a recombinant poxvirus by using the recombinant poxvirus vector system and application of the recombinant poxvirus vector system in preparation of a poxvirus vector vaccine, and the recombinant poxvirus has the effects of large loading capacity and strong immune excitation effect.

The application discloses a kind of high surface natural micropore structure regulation-based high surface withstand voltage polyimide and preparation method and application thereof, belong to high voltage insulating material technical field, after drying diamine is dissolved in solvent A, then add dianhydride, after stirring uniformly, obtain polyamide acid solution;Add pore forming agent again, high-speed stirring is uniformly dispersed, obtain mixed viscous solution C;After coating, drying, imidization high temperature heating, and natural cooling, immerse in liquid B and extract pore forming agent, after drying, obtain high surface natural micropore structure regulation-based high surface withstand voltage polyimide.The polyimide surface has natural pore structure, surface is along the surface of electric field, and the through-hole structure is densely distributed along the surface of electric field, and the electron is easy to drop into the through-hole structure in the jumping multiplication process when flashover, and it is difficult to return to the surface, so that the secondary electron multiplication process is inhibited, the probability of forming secondary electron avalanche is reduced, so as to realize the improvement of surface withstand voltage.

The invention discloses a cleaning method of a reverse osmosis membrane and the reverse osmosis membrane prepared by the cleaning method. The cleaning method comprises the step of sequentially immersing a nascent state membrane of the reverse osmosis membrane into an aqueous solution containing an imidazole activator, pure water and a glycerol aqueous solution for cleaning, in the aqueous solution containing the imidazole activating agent, the imidazole activating agent is selected from one or more of imidazole, N-methylimidazole, 2-methylimidazole, 4-methylimidazole, N-ethylimidazole and N-vinyl imidazole. The membrane performance of the reverse osmosis membrane is remarkably improved while residual polyamine monomers in the membrane are reduced, and compared with an existing residual polyamine removal method, the method has outstanding application advantages.

The utility model relates to the technical field of water treatment, and discloses carbon-loaded air flotation integrated equipment, which comprises a mixing area, a flocculation area, a coagulation assisting area, a contact area, a separation area and an auxiliary area, is integrally rectangular and is divided into two parts in the width direction, one part is divided into a mixing area, a flocculation area, a coagulation assisting area, a contact area and a separation area which are symmetrically designed from front to back, the other part is an auxiliary area, and a dosing and gas dissolving group is arranged in the auxiliary area and is connected with the mixing area, the flocculation area, the coagulation assisting area, the contact area and the separation area respectively for dosing and gas dissolving. Aiming at the problems of high effluent COD (Chemical Oxygen Demand), obvious chromaticity and the like of a built sewage plant, under the condition of saving cost, the effluent quality of the sewage plant can meet the requirements of quasi-surface four-class water, and the equipment adopts an integrated design, is small in occupied area, quick to use and convenient to operate, and is suitable for the sewage plant and the sewage plant. The method also has outstanding application advantages in occasions such as emergency treatment of waterworks and black and odorous river channels.

The application provides a method for installing solenoid of an electron linear accelerator, which comprises the following steps: setting a front stand; setting a middle stand for installing at least one component of the front part in the rear section and a solenoid focusing assembly, wherein the solenoid focusing assembly is slidably arranged on the middle stand; setting a rear stand for installing an accelerating tube assembly; when replacing the solenoid, removing all the components of the front part on the middle stand and the support seat thereon, moving the solenoid focusing assembly towards the front stand to make the solenoid out of the accelerating tube; assembling a new solenoid into the solenoid focusing assembly and moving the solenoid focusing assembly towards the rear stand to make the solenoid into the accelerating tube; then, assembling the support seat on the middle stand; and installing the removed components on the middle stand and performing system collimation.

This invention provides an integrated device for the fabrication and automatic assembly of corner bracket springs for doors and windows. The device includes a worktable and a turntable. Several workstations are spaced apart on the worktable, and the turntable is equipped with fixtures for placing corner brackets. Each workstation on the worktable is sequentially equipped with a first riveting mechanism, a spring-feeding mechanism, and a second riveting mechanism. A machine base is provided on the worktable for placing multiple strips of material side-by-side. The spring-feeding mechanism includes a pulling component, a perforating component, and a cutting component mounted on the machine base. The pulling component pulls multiple strips of material from a material supply mechanism. The perforating component creates rivet holes and pre-drilled holes with different spacing on each strip. The cutting component cuts the strips to different lengths according to the hole spacing. The spring-feeding mechanism picks up multiple springs from the machine base and stacks them in length order onto the anchor points of the corner brackets on the fixture. This device can achieve precise and efficient assembly of corner brackets and springs.

The invention provides a flora with PAEs degradation and siderophore secretion capabilities as well as a product and application thereof, and belongs to the technical field of soil remediation. The microbial community comprises Arthrobacter sp. Y-2, Rhodococcus sp. D-12, Rhodococcus sp. 2G, Bacillus mucilaginosus Krassica nikov 19749 and Pantoea sp. 60226, the Arthrobacter sp. Y-2 is preserved in the China Center for Type Culture Collection on November 20, 2025, the preservation number is CCTCC NO: M20252602, the Rhodococcus sp. D-12 is preserved in the China Center for Type Culture Collection on November 20, 2025, the preservation number is CCTCC NO: M20252603, and the Rhodococcus sp. D-12 can be applied to simultaneous degradation of six PAEs, can be applied to degradation of Pantoea sp. The composite degradation efficiency of the strain is obviously superior to that of any single strain, and meanwhile, the strain has the capability of secreting siderophores, so that the treatment efficiency of microorganisms on PAEs is enhanced.

The invention belongs to the technical field of electrochemical catalysis, and particularly relates to a ligand-metal interface CuZn catalyst as well as a preparation method and application thereof.The catalyst takes CuZn nanoparticles as a basic material, a ligand-metal interface is constructed through surface modification of an amino ligand or a sulfydryl amine ligand, and the catalyst can be used for synthesizing urea through electro-catalysis carbon-nitrogen coupling; according to the design, through the synergistic effect of a space effect and an electronic effect, CO2 and adsorption are enhanced, and generation of key intermediates COOH and NH2 is promoted; the sulfydryl-metal bond inhibits the surface reconstruction of the electrode and improves the stability; the catalyst is used as a cathode, cathode current is applied to electrolyte containing a carbon source and a nitrogen source for reaction, the Faraday efficiency of urea is as high as 51% through the catalyst, the yield reaches 2364.25 mg h <-1 > g cat <-1 >, and the catalyst can stably run for 22 hours at most; the technical bottlenecks of many side reactions and poor stability in electro-catalysis urea synthesis are solved, and an efficient catalysis system is provided for green urea synthesis.

The invention belongs to the technical field of constructional engineering materials, and discloses low-shrinkage low-viscosity ultrahigh-strength concrete. The concrete comprises the following raw materials: Portland cement, mineral powder, limestone powder, fly ash, medium sand, basalt macadam, fly ash floating beads, metakaolin, fine steel fibers, a polycarboxylic acid superplasticizer, a calcium sulphoaluminate-calcium oxide expanding agent, acrylic acid modified chlorinated polyether resin, modified epoxy resin, sodium polyacrylate, unsaturated monobasic acid, phosphogypsum and S95-grade slag. According to the invention, through a specific formula and process, the problems of shrinkage cracking and difficult pumping of ultrahigh-strength concrete in application are effectively solved; the concrete has the advantages of high strength, high corrosion resistance and durability, capability of reducing the structure size, reducing the structure self weight, reducing the structure maintenance cost and reconstruction cost and the like; the concrete has outstanding application advantages in large-scale projects such as super high-rise buildings, cross-sea bridges and offshore oil production platforms, and has wide application prospects.

This invention discloses a method for activating persulfate to degrade organic pollutants using an iron / smarium co-modified porous nitrogen-doped carbon Fenton catalyst. The method uses the iron / smarium co-modified porous nitrogen-doped carbon Fenton catalyst as an activator to activate persulfate and degrade organic pollutants. The iron / smarium co-modified porous nitrogen-doped carbon Fenton catalyst comprises a porous nitrogen-doped carbon framework, with iron and samarium elements modified internally and on its surface. Iron and samarium elements coexist in the form of single-atom sites, diatomic sites, atomic clusters, and nanoparticles. The iron / smarium co-modified porous nitrogen-doped carbon Fenton catalyst used in this invention has the characteristics of high reactivity, wide applicability, and strong anti-interference ability. It is a catalyst with excellent Fenton-like catalytic performance and can be widely used to treat organic pollutants in water bodies. It can quickly and thoroughly remove organic pollutants, has high application value, and good application prospects.

The application discloses a surface enhanced Raman scattering detection kit for detecting acute myocardial infarction protein markers and a preparation method and application thereof. The kit comprises a SERS detection chip, a first reagent, a second reagent and a third reagent. The SERS detection chip is a silver nanorod array substrate which is decorated with a hairpin type DNA single strand H1, the first reagent is Aptamer and Primer hybridization to form a recognition double-stranded Apt-P, the second reagent is a hairpin type DNA single strand H2, and the third reagent is a SERS probe. Through mutual cooperation of the SERS detection chip, the first reagent, the second reagent and the third reagent, Raman signals of the SERS probe on the SERS detection chip are detected, rapid and high-sensitivity detection of the acute myocardial infarction protein markers can be realized, and the existing antibody recognition-based immunodetection technology is overcome in terms of detection sensitivity, timeliness, portable operability and the like.

The utility model provides a kind of UWB digital key positioning system of fusion IMU, to solve the technical problems that existing system has high cost, installation is complex. The utility model includes digital key, first UWB anchor point and second UWB anchor point deployed in car;MCU control unit, IMU module and UWB module are equipped in the digital key, IMU module and UWB module are connected with MCU control unit, UWB module is connected with first UWB anchor point and second UWB anchor point communication respectively. The utility model reduces the quantity of UWB anchor point, the utility model effectively reduces the construction cost of UWB multi-anchor positioning system, reduces system overall power consumption, enhances scene adaptation flexibility, expands application range.

The application discloses a shuttle mine car with a remote control loading and hoisting system and a construction method thereof, which comprises a shuttle mine car module, a micro excavator loading system and a hoisting system, wherein the shuttle mine car module comprises a shuttle mine car body; the micro excavator loading system comprises an excavator arm and a loading system hydraulic power station; and the hoisting system comprises a cantilever crane support, a telescopic hoisting arm, a hoisting arm hook and a steel rail hanger. The shuttle mine car with the remote control loading and hoisting system can be opened to the bottom of a tunnel in the last stage of tunnel construction, and the micro excavator is controlled by a remote controller to clean and transport the tunnel ground slag to the shuttle mine car body, meanwhile, the cantilever crane on both sides of the shuttle mine car can be remotely controlled to extend, the exposed shuttle mine car steel rail and sleeper are hoisted to the side wall of the shuttle mine car and transported to the outside of the tunnel. The shuttle mine car with the remote control loading and hoisting system can effectively improve the tunnel construction progress, reduce the labor intensity of personnel, has a high safety coefficient and obvious application advantages.