166results about How to "Broaden your options" patented technology

The invention discloses a battery material combination method and device and a computer storage medium, and relates to the technical field of new energy materials, and the method comprises the steps: generating one or more groups of candidate material combinations based on battery material data; extracting attribute features of the candidate material combination, and converting the attribute features into feature vectors; and inputting the feature vector into a pre-trained prediction model to obtain a performance prediction result of the candidate material combination. According to the method, the candidate material combination is generated, and the performance of the candidate material combination is predicted by using the prediction model, so that efficient screening and safety performance prediction of the battery material combination are realized, the research and development efficiency of the battery material is remarkably improved, and meanwhile, the selection range of the battery material combination is also expanded.

The invention relates to the technical field of charging equipment management, and discloses a charging equipment intelligent management system and method, and the specific steps are as follows: constructing an intelligent management system comprising a charging station information unit, a charging equipment information unit and a user information unit, setting a charging equipment recommendation platform, and recommending a nearby charging station to a user. The method comprises the following steps: recording a search event of a user, collecting position information of a charging station, a use state of charging equipment and electric quantity data, dividing a monitoring area and monitoring search points to identify peak and low peak time periods, and executing a charging equipment supplement strategy and a charging station matching strategy to optimize distribution of the charging equipment and charging selection of the user. The method comprises the following steps: collecting search points of each monitoring area in a monitoring time period, executing a charging equipment supplement strategy, and in addition, executing a charging station matching strategy by a system according to personal information data collected in a peak time period.

The invention discloses a double-liquid water-soluble polyurethane ground grouting flowing water blocking method. The method comprises the steps that A, ground penetrating roadway drilling construction is conducted; b, a double-pipe grouting device is installed; c, pressing water before grouting; step D, preparing a double-liquid water-soluble polyurethane grouting liquid; e, the double-fluid water-soluble polyurethane grouting fluid is mixed through a double-pipe grouting device and then grouted to a target position; and F, water pressing is conducted after grouting. The method is a more efficient, environment-friendly and economical water gushing treatment scheme, the treatment effect of flowing water plugging in the complex underground environment can be effectively enhanced, and therefore construction and operation safety of the deep-buried tunnel is guaranteed.

The invention provides an epitaxial growth process for improving doping uniformity of n-type doped silicon carbide, and relates to the technical field of semiconductors. The method is based on a chemical vapor deposition growth technology; 11 to 20 gt; the silicon carbide epitaxial growth is carried out by taking silicon carbide with a 4-degree silicon surface in the direction as a substrate, taking trichlorosilane (TCS) and ethylene (C2H4) as growth sources and taking ammonia gas (NH3) as a doping source. Ammonia gas is adopted as an n-type dopant, the decomposition efficiency of the n-type dopant is close to 100% at the temperature of 700 DEG C or above, and the energy of N-H bond breakage of ammonia gas molecules is 390 KJ / mo which is far lower than 946 KJ / mo needed by N-N bond breakage of nitrogen molecules. Therefore, compared with a traditional doping source such as nitrogen, the ammonia gas has higher doping efficiency, residues of excessive nitrogen-containing precursors in the reaction chamber can be reduced, the memory effect is reduced, and thus more excellent in-chip uniformity and stable inter-chip repeatability of the epitaxial wafer are obtained. The selection range of the doping source is widened, the accurate control of the doping concentration is realized, and the stability of the doping concentration in the continuous growth process is improved.

The invention relates to a method for preparing spinnable mesophase pitch and carbon fibers from coal tar fractions, and belongs to the technical field of carbon materials. The method comprises the following steps: distilling and extracting aromatic hydrocarbon fractions in different distillation ranges from coal tar, activating the aromatic hydrocarbon fractions in one or more distillation ranges as raw materials, and carrying out non-catalytic polymerization reaction on one or more activated coal tar fractions and one or more non-activated coal tar fractions at a low temperature, and performing high-temperature polymerization reaction to obtain matrix asphalt, and performing reduced pressure distillation treatment, solvent extraction or inert gas purging to obtain the spinnable mesophase asphalt. The spinnable mesophase pitch has wide-area streamline optical texture distribution, good directional arrangement and orderliness, the mesophase content can reach 100%, the softening point is low, the coking value is high, the ash content is low, and the structure is controllable. The carbon fiber prepared based on the mesophase pitch is short in required oxidation time and has excellent performance.

The invention discloses a method for realizing'active ' / controllable free radical polymerization of hydrophilic and / or hydrophobic monomers under an air condition, relates to the field of'active' / controllable free radical polymerization, and aims to solve the problem of narrow monomer selection range in the prior art. A functional monomer comprising a hydrophobic monomer, a halide, copper bromide, a ligand and a nonionic surfactant-GOx are subjected to monomer polymerization in a solvent through an initiator azodiisobutylimidazoline hydrochloride (VA-044), and a polymer with narrow target molecular weight and molecular weight distribution is formed. According to the method, the glucose oxidase modified by the nonionic surfactant is introduced into the'active ' / controllable free radical polymerization reaction, and an effective way for quickly and efficiently synthesizing a target polymer from a hydrophobic monomer under the mild air condition is provided.

The invention belongs to the technical field of biochemical engineering, and particularly relates to a Pickering emulsion microcapsule of interface immobilized lipase as well as a preparation method and application of the Pickering emulsion microcapsule. The preparation method of the Pickering emulsion microcapsule comprises the following steps: ultrasonically dispersing silicon oxide nanoparticles which have an emulsifying function and can adsorb enzyme into an organic solvent to serve as an oil phase, dissolving lipase into a buffer solution to serve as a water phase, mixing the water phase and the oil phase, and carrying out ultrasonic dispersion to obtain the Pickering emulsion microcapsule. And then adding a silane coupling agent, organic amine and an organic solvent, and carrying out interface gel-sol treatment to obtain the Pickering emulsion microcapsule. The Pickering emulsion microcapsule disclosed by the invention has better high temperature resistance and pressure resistance, and can realize efficient preparation of epoxide in a fixed bed continuous enzyme catalysis olefin epoxidation reaction.

The invention discloses a method for preparing a perovskite single crystal by using a general solvent system, and relates to the field of photoelectric materials. The general solvent system is composed of gamma-butyrolactone and polyethylene glycol and can be used for preparing perovskite single crystals with various components. The method for preparing the perovskite single crystal by using the solvent system comprises the following steps: preparing a perovskite precursor solution; heating the perovskite precursor solution; and taking out the single crystal from the solution, cleaning and drying. The method is simple and convenient to operate, and can be used for preparing large-size single crystals and preparing small-size single crystals on a large scale.

The invention belongs to the technical field of casting, and particularly relates to a method for preparing a water-soluble composite salt core based on a slurry direct-writing forming 3D printing technology. A water-soluble composite salt core material for low-melting-point alloy casting is composed of pretreated water-soluble inorganic salt, a binder and an additive, the pretreated water-soluble inorganic salt is obtained by mixing a coating solution and inorganic salt powder, and the mass percent of the coating solution and the inorganic salt powder is 100%. The ratio of the pretreated water-soluble inorganic salt to the binder to the additive is (60-80%): (20-30%): (0-10%). Compared with a traditional method for preparing a water-soluble salt core, the water-soluble composite salt core material has the advantages that the water-soluble salt core formed through slurry direct writing can be used for rapidly forming parts without a mold, the process is simple, the raw material cost is low, the equipment requirement is low, and rapid and accurate mold-free forming of high-precision complex salt cores can be achieved; the problem that complex salt cores are difficult to integrally form is solved.

The invention relates to the technical field of functional polymer composite materials, in particular to an intermediate film for laminated glass based on color generation of a photonic crystal structure and a preparation method of the intermediate film. The intermediate film comprises a thermoplastic resin matrix and a three-dimensional photonic crystal structure region dispersed in the thermoplastic resin matrix, wherein the three-dimensional photonic crystal structure region is formed by self-assembly of monodisperse microspheres, and the central wavelength of a photonic forbidden band of the region is located in a visible light range. According to the invention, a three-dimensional photonic crystal structure is constructed in the intermediate film, and structural color generation is generated by utilizing selective reflection of the photonic band gap effect on visible light with a specific wavelength. According to the laminated glass, the color is generated by interference of light instead of absorption of chemical pigments, so that the color can be continuously and regularly changed along with the change of an observation angle or an incident light angle, the dynamic and changing visual aesthetic feeling is given to the laminated glass, and the higher requirements of the fields of modern buildings, automobiles and the like on dynamic aesthetics and personalized appearance are met.

The invention discloses an ultrasonic transducer and a backing structure thereof, and belongs to the technical field of ultrasound, the backing structure is connected to the back surface of a piezoelectric layer, and the backing structure comprises a first reflecting layer, a backing layer and a second reflecting layer which are sequentially stacked in the direction away from the piezoelectric layer; the impedance of the first reflecting layer is between that of the backing layer and that of the piezoelectric layer, and the impedance difference between the first reflecting layer and the piezoelectric layer is lower than a first threshold value; the impedance of the second reflecting layer is higher than that of the backing layer, and the impedance difference value between the second reflecting layer and the backing layer is higher than a second threshold value. Through the arrangement of the first reflecting layer and the second reflecting layer, reverse ultrasonic waves generated on the back surface of the piezoelectric layer can be reflected for multiple times in the backing layer, so that the reverse ultrasonic waves are absorbed by the backing layer as much as possible, the absorptivity of the reverse ultrasonic waves is effectively improved, and the interference of the reverse ultrasonic waves on forward ultrasonic waves is reduced.

The invention discloses a universal design method suitable for centrifugal compressor model stages with different flow coefficients, and belongs to the technical field of centrifugal compressor design. The method mainly relates to establishment of three-dimensional models of an impeller, a vaneless diffuser, a curve and a backflow device and comprises a rotor part and a stator part, and design parameters of the centrifugal compressor model stage are finally obtained according to a series of calculation results and given parameters. The method is a universal method suitable for centrifugal compressor model stages with different flow coefficients, and the design efficiency and the aerodynamic performance of the compressor are improved. According to the method, the structure compactness of the model stage is ensured, the performance is more potential, and the thermodynamic cycle efficiency is high.

The pneumatic ball valve group comprises a combined valve body, an assembled pneumatic device is arranged above the combined valve body, a sealing base is arranged on the surface of the upper portion of the combined valve body, a control device is arranged on one side of the assembled pneumatic device, pipeline openings are formed in the two sides of the combined valve body, and the pipeline openings are communicated with the assembled pneumatic device. A circulating pipe is arranged in the combined valve body, a rotating rod is movably connected to the upper surface of the sealing base, and an embedding inserting groove is formed in the surface of the rotating rod, so that the problems that in the background technology, when materials are conveyed only through two channels with different sizes, the selection range of flow control is small, and the conveying efficiency is high are solved. The pneumatic ball valve solves the problems that an existing pneumatic ball valve can only carry out rough quantitative filling, and when a power unit of the existing pneumatic ball valve goes wrong, the whole pneumatic ball valve needs to be disassembled, and the quantitative filling procedure is affected.

The invention relates to a Princisteria megatherium DF3-2, a microbial agent thereof and application of the Princisteria megatherium DF3-2 in treatment of nitrogen-containing sewage, and belongs to the technical field of microorganisms. According to the present invention, the Pristeria megaterium DF3-2 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.32449, the preservation date is October 31, 2024, and the address of the preservation institution is No.3, Courtyard 1, Beichen West Road, Chaoyang District, Beijing. The invention also provides an application of the Princisteria megatherium DF3-2 in treatment of nitrogen-containing sewage. The Princisteria megatherium DF3-2 provided by the invention can be used for treating nitrogen-containing sewage through denitrification, and still keeps relatively high activity in a low-temperature environment. The selection range of nitrogen-containing sewage treatment is expanded, and meanwhile, the energy consumption is reduced. The P.megatherium DF3-2 has very high tolerance in nitrate nitrogen with relatively high concentration. The P.megatherium DF3-2 has very high tolerance in nitrate nitrogen with relatively high concentration.

The present invention relates to a heat exchanger with a thermal displacement compensation support mechanism, which can also be used in a steam generator and belongs to the technical field of heat exchangers. It includes a shell, an internal heat exchange unit and a plurality of thermal displacement compensation support mechanisms, wherein the plurality of thermal displacement compensation support mechanisms are evenly distributed in the shell along the circumference, and the thermal displacement compensation support mechanism is composed of a follower support, a guide rod, a disc spring assembly, an outer cylinder, a main support seat and a spring-shaped pipe. In the present invention, an elastic disc spring support structure is adopted, which can be adjusted according to the thermal displacement caused by the temperature difference or the inconsistency of the linear expansion coefficient of the material between the two connected rigid bodies, so as to avoid the thermal stress at the connection between the rigid bodies being unable to be released due to the rigidity limitation of the support, thereby causing damage to the equipment. The thermal displacement compensation support mechanism in the present invention is arranged in a lower temperature zone, which avoids the excessive selection of high-temperature materials, increases the range of material selection, reduces the material cost, and ensures the working reliability of the thermal displacement compensation support mechanism.

The invention relates to a method for assisting 3D printing based on a solid support bath and a product. The method comprises the following steps: preparing silicone elastomer ink; filling the silicone elastomer ink into a printing needle cylinder, and printing in a container containing a solid matrix with a certain particle size or repose angle according to a set printing requirement; after printing is completed, the whole container is heated for a certain time; and taking out the semi-cured printing piece, and continuously heating to obtain a completely-cured printing component. According to the method, the selection range of printing ink is expanded, printing can be conducted in solid particles or matrixes with different particle sizes or repose angles, and by adjusting printing parameters, a complex three-dimensional structure can be obtained through printing by adopting simple printing equipment only under the supporting effect of the solid particle matrixes; and a printing component can be obtained through simple post-treatment.

The invention discloses a data processing method and device, equipment, a storage medium and a program product, and is applied to the technical field of computers. The method comprises the steps of obtaining at least two pieces of data of M data partitions; determining partition data distribution information corresponding to each data field according to a data partition rule of each data field in the at least two data fields; determining a target data field from the at least two data fields according to a data distribution uniformity evaluation index value corresponding to each piece of partition data distribution information in the at least two pieces of partition data distribution information; the data distribution uniformity evaluation index value corresponding to the partition data distribution information of the target data field is greater than or equal to a preset threshold value; and according to a data partitioning rule of the target data field, performing redistribution processing on the data of the M data partitions to generate M first data tables. According to the method, the problem of resource waste caused by data skew due to a mode of performing data partitioning according to a fixed partitioning field can be solved.

The present disclosure relates to a power module comprising: a first substrate formed by stacking a plurality of layers in a first axis direction; a semiconductor chip electrically connected to the first substrate; a printed circuit board connected to the semiconductor chip and including at least one step portion having a reduced thickness smaller than a thickness of the surrounding region in the first axis direction; and at least one metal block mounted on the at least one step portion in the first axis direction and electrically connected to the first substrate.

The invention discloses an all-optomagnetic turnover magnetic film as well as a preparation method and application thereof. The all-optical magnetic turnover magnetic film comprises a Ta layer, a first Pt layer, a Co layer, a Ru layer, a Gd layer and a second Pt layer which are sequentially stacked on the surface of a substrate, wherein the thickness of the Ru layer is 0.8 nm, 1.3 nm or 1.5 nm. The preparation method of the all-optical magnetic flipping magnetic film comprises the following steps: sequentially depositing a Ta layer, a first Pt layer, a Co layer, a Ru layer, a Gd layer and a second Pt layer on the surface of a substrate by adopting ultrahigh vacuum direct current magnetron sputtering to obtain the all-optical magnetic flipping magnetic film. The all-optical magnetic flipping magnetic film has the advantages of high switching efficiency, low switching energy, wide energy window, easiness in regulation and control, stability in repeated writing and the like, can be applied to the fields of high-density ultrafast magnetic storage, information processing and the like, and is suitable for large-scale application.

The present disclosure provides a shielding cable connection structure, including a connector and a shielding cable. The shielding cable includes a conductor core and a shielding layer, the connector is provided therein with a first inner cavity for accommodating the shielding cable, the connector includes a conductive layer, and the conductive layer is provided on an inner surface of the first inner cavity and is electrically connected to the shielding layer. By means of the present disclosure, the technical problem that electromagnetic interference is relatively serious at a connection position of the shielding cable is alleviated.

The application discloses a negative electrode slurry, a preparation method thereof and a sodium ion battery. The negative electrode slurry comprises a thickening agent and a negative electrode material, the thickening agent comprises a high-molecular polymer with a structural unit shown in formula (I): wherein R1 is a branched structure with 1-10 C atoms and a terminal -COOH; R2 is a branched structure with 1-10 C atoms and a terminal acid group; R3 is a branched structure with 1-10 C atoms and a terminal -COOR4 ester group; R4 is a saturated alkane with 1-5 carbon atoms; 70%<=x<=95%, 0%<=y<=10%, 5%<=z<=30%. The negative electrode slurry has high viscosity stability and low preparation cost.

The utility model discloses a cell incubator, which belongs to the technical field of cell incubators and comprises an incubator body and a fixing plate, two side walls of an inner cavity of the incubator body are fixedly connected with limiting blocks at equal intervals, the fixing plate is arranged in the inner cavity of the incubator body through the connection of the limiting blocks, two ends of the fixing plate are provided with adjusting assemblies, and the adjusting assemblies are connected with the limiting blocks. A placing plate is fixedly connected to the opposite sides of the adjusting assemblies, a box door is hinged to one side of the box body through hinges, a sealing strip is bonded to the inner side wall of the box door, and a supporting effect can be provided for the adjusting assemblies through arranged fixing plates; then the cell culture containers with different heights can be limited and fixed through the operation of the adjusting assembly, so that the stability of the cell culture containers during storage in the cell culture box is guaranteed, meanwhile, the selection range is expanded, the sterilizing lamp can be conveniently mounted through the arranged sliding seat, and the use is convenient. And then the sterilization lamp provides sterilization and disinfection functions for the interior of the box body.

The invention discloses a photo-repairable carbon dot reinforced bio-based elastomer, and belongs to the field of bio-based nano materials and bio-based elastomers. According to the invention, palmitic acid is used as a raw material, bio-based carbon dots prepared by a hydrothermal method are used as reinforcements, the reinforcements are matched with palm oil fatty acid acrylamide ethyl ester, hydroxyethyl acrylate and acryloyloxyethyl trimethyl ammonium chloride are added as comonomers, and the bio-based carbon dots are prepared. And preparing the bio-based elastomer through a photocuring technology under the action of a photoinitiator. The raw materials are derived from bio-based materials and are environment-friendly; due to the addition of the bio-based carbon dots, the tensile elongation at break, the fracture toughness and the tensile strength of the elastomer are remarkably improved; and the photothermal effect of the carbon dots enables the elastomer to have excellent photorepair performance.

The invention belongs to the technical field of coal blending and coking methods, and particularly relates to a coal blending and coking method for directionally regulating and controlling organic sulfur in coal gas. The method comprises the following steps: S1, respectively measuring conventional process indexes of single coking coal; S2, blending coal according to 0-9% of gas-fat coal, 30-44% of 1 / 3 coking coal, 11-16% of fat coal, 30-38% of coking coal and 10-14% of lean coal; s3, calculating the total sulfur of the mixed coal, and predicting the total sulfur of coke and the total organic sulfur in the coal gas by utilizing the prediction model; s4, when the total sulfur of the mixed coal is not changed, adding the low-sulfur gas-fat coal or reducing the proportion of the high-volatile gas-fat coal; s5, carrying out a small coke oven simulation coking test on the optimized blended coal, and determining a final coking coal ratio according to a test result; and S6, crushing the mixed coal sample, and then carrying out coking operation. On the premise of meeting the quality requirement of the high-quality metallurgical coke, the high-sulfur coal resource with a certain price advantage can be scientifically and reasonably matched.

The application provides a sodium ion battery and a preparation method thereof, the sodium ion battery comprising a positive electrode sheet and a negative electrode sheet, a positive electrode material of the positive electrode sheet being a host material with a sodium intercalation structure, and a negative electrode material of the negative electrode sheet comprising a pre-sodium carbon material and / or metallic sodium, the application solves many limitations such as positive electrode material design and electrode design, greatly widens the selection range of the positive electrode material of the sodium ion battery, improves the energy density bottleneck, meanwhile, the problem that an olivine-type polyanion iron / manganese sodium salt with an electrochemical stable phase is difficult to prepare is avoided, and the first coulomb efficiency and the energy density of the sodium ion battery are improved.

The present invention discloses a raw material for pressure transmission and sealing medium for synthesis of six-sided top press, and a preparation method and application thereof, and belongs to the field of synthesis technology of six-sided top press. With pyrophyllite as raw material, by removing impurities, crushing, and detecting components, and comparing the formula requirements, aluminum, iron, titanium and other elements are added to it so that the composition ratio reaches the ideal requirements, and then through screening, mixing, fermentation, pressing, drying and other process treatments, a pressure transmission and sealing medium block for synthesis of superhard materials is prepared. The pressure transmission and sealing medium block prepared according to this formula has good pressure transmission, sealing and heat preservation properties, can significantly reduce the operating pressure of the six-sided top press equipment, the fluctuation of heating power, improve the stability of the synthesis internal cavity, improve the quality of superhard material products, and at the same time reduce the consumption of the top hammer and the loss of the equipment, and reduce the production cost of synthetic superhard materials. The selection range of pyrophyllite ore sources for the raw materials of the synthetic pressure transmission and sealing medium is expanded, and the risk and procurement cost of enterprises in dealing with the shortage of high-quality pyrophyllite resources are reduced.

The present invention relates to a fuel cell bipolar plate and a fuel cell bipolar plate coating method, the fuel cell bipolar plate having corrosion resistance and high conductivity, and provides a fuel cell bipolar plate comprising: a metal substrate; and a coating layer formed on the metal substrate and composed of a mixture of a binder resin and a filler, the filler including a sheet-like carbon material and a particulate carbon material, in which the filler is surrounded by the binder resin so that the filler is dispersed inside the coating layer, and the filler is exposed to the outside on a surface of the coating layer.

The utility model discloses a high -voltage connector convenient to installation, including socket assembly and plug assembly, socket assembly is connected with plug assembly. The utility model has the beneficial effects: the utility model can realize multi -angle installation through rotating plug assembly, breaks through the restriction of traditional connector only 90 or 180 cooperation mode, and the selection range of installation position is greatly expanded, and whole car wiring becomes more convenient, the utility model adopts 360 shielding structure of shielding spring, shielding outer ring and shielding inner ring, effectively avoids the problem of shielding layer loosening, fracture, and electromagnetic interference is effectively inhibited, and the stability of system signal transmission is improved, the utility model discloses through interlocking sealing washer, socket sealing pad, plug sealing washer, small O -ring, sleeve and big O -ring etc.

The present invention relates to a carbon fiber plane triaxial fabric and a weaving method thereof, comprising a plurality of regular hexagonal units woven from a carbon fiber yarn bundle group, wherein the regular hexagonal unit is evenly divided into three rhombus units; the carbon fiber yarn bundle group comprises a first yarn bundle, a second yarn bundle at a 60° angle with the first yarn bundle, and a third yarn bundle at a ‑60° angle with the first yarn bundle; in the first rhombus unit, the first yarn bundle is located at an upper layer, the second yarn bundle is located at a middle layer, and the third yarn bundle is located at a lower layer; in the second rhombus unit, the second yarn bundle is located at an upper layer, the third yarn bundle is located at a middle layer, and the first yarn bundle is located at a lower layer; in the third rhombus unit, the third yarn bundle is located at an upper layer, the first yarn bundle is located at a middle layer, and the second yarn bundle is located at a lower layer. The present invention is woven along three axial directions, thereby increasing the tear resistance of the carbon fiber fabric, reducing the curvature of the yarn bundle, reducing the deformation of the carbon fiber fabric, and extending the service life of the carbon fiber fabric.