20results about How to "Change properties" patented technology

The invention provides a preparation method of a metal-doped sodium titanate negative electrode material, which comprises the following steps: S1, preparation of a hydrolysis solution: dissolving titanyl sulfate and metal A sulfate in water to serve as the hydrolysis solution, the molar ratio of A to Ti being (0.01-0.5): 1; s2, preheating a base solution, namely adding a proper amount of deionized water into a reaction kettle, and preheating to 80-110 DEG C; s3, hydrolysis: in a stirring state, adding a hydrolysis solution into the reaction kettle at a constant speed, and keeping the temperature of a system in the reaction kettle constant; s4, preparing metatitanic acid: cooling the hydrolyzed slurry to room temperature, washing with water, and drying to obtain metal-doped metatitanic acid; and S5, preparing sodium titanate: uniformly mixing a sodium source and the metal-doped metatitanic acid according to the molar ratio of sodium to titanium of 2: 3, calcining in an argon atmosphere, and naturally cooling to obtain the metal-doped sodium titanate. The metal-doped sodium titanate prepared by the method is low in cost, simple and feasible in process and excellent in product performance.

The invention relates to a novel navigation signal modulation method based on a nonlinear frequency modulation subcarrier. The method comprises the following steps: constructing a first parameter and a second parameter according to the maximum frequency and the initial frequency of a nonlinear frequency modulation signal; constructing an expression of a nonlinear signal according to the first parameter and the second parameter; wherein the phase and the frequency of the non-linear signal are a periodic function which changes non-linearly along with time; and multiplying the spread spectrum signal by a subcarrier formed by the nonlinear signal to obtain a navigation signal based on the nonlinear frequency modulation subcarrier. By adopting the method, the anti-interference capability of a satellite navigation signal system can be improved.

The application relates to a highly-ordered porous sulfur / oxygen co-doped carbon sphere and a preparation method and a potassium ion battery thereof, and belongs to the technical field of battery materials. The application discloses a preparation method of a highly-ordered porous sulfur / oxygen co-doped carbon sphere. The carbon sphere is prepared by mixing sulfur powder and resin material, the prepared carbon sphere is uniformly doped with atoms, the pore size distribution is uniform, the number of potassium storage sites is relatively large, and the carbon sphere can be applied to a potassium ion battery. The application further discloses a potassium ion battery. The active material of the potassium ion battery comprises the highly-ordered porous sulfur / oxygen co-doped carbon sphere. The potassium ion battery can be a half battery assembled by a negative electrode material containing the highly-ordered porous sulfur / oxygen co-doped carbon sphere and metal potassium. The potassium ion battery can also be a full battery assembled by the negative electrode material containing the highly-ordered porous sulfur / oxygen co-doped carbon sphere and a prussian blue positive electrode material.

According to the instant ruditapes philippinarum food and the processing method thereof, ruditapes philippinarum is used as a raw material, and vacuum rolling, TG enzyme-ultrasonic coupling treatment, vacuum impregnation and far infrared drying and dehydration technologies are combined in the main steps of raw material pretreatment, pre-dehydration, seasoning, drying and the like. The allergen of the clam meat instant product is effectively reduced, the elasticity of the clam meat instant product is increased, the taste of the clam meat is ensured, and the clam meat instant product has certain reference significance for development of instant shellfish products.

The invention relates to the technical field of glass bead production, and discloses a method for preparing glass beads by mixing open-hearth liquid slag with blast furnace waste slag and continuous casting slag, which comprises the following steps: S1, raw material pretreatment: pretreating the open-hearth liquid slag, firstly filtering the open-hearth liquid slag to remove impurities, and then introducing into an electrode heating furnace to heat, the method comprises the following steps: S1, preparing raw materials, S2, preparing raw materials, S3, preparing raw materials, S4, preparing raw materials, S4, preparing raw materials, S4, preparing raw materials, S4, preparing raw materials, S5, collecting and screening glass beads, and S6, detecting products and controlling quality. By adding sodium carbonate and borax for fine adjustment of components and performing ingredient calculation and mixing through accurate component analysis, the components of the mixed liquid slag can be adjusted, and the viscosity, surface tension and solidification characteristics of the mixed liquid slag are changed, so that the particle size distribution after air quenching granulation is optimized, the state and performance of a precipitated phase after slag liquid solidification are improved, and the production quality of glass beads is ensured.

The invention discloses a design method of a bearingless permanent magnet synchronous motor with inclined plane connection and parallel magnetization combined magnetic poles, and belongs to the technical field of novel special alternating current motor optimization design. Stator teeth / grooves of the BL-PMSM are uniformly distributed along the circumference of the stator, and the stator teeth / grooves are designed by pear-shaped grooves and parallel teeth; constructing a four-pole torque winding and a two-pole suspension winding; and finally, constructing a symmetric arc-bottom trapezoidal main magnetic pole and an asymmetric trapezoidal auxiliary magnetic pole by adopting a high-residual-magnetism material and a low-residual-magnetism material respectively, carrying out seamless inclined plane connection on the main magnetic pole and the auxiliary magnetic pole, and constructing an integrated parallel magnetizing integral sector ring magnetic pole structure by taking a pole-arc coefficient occupied by the width of an inclined plane connection region as one of structural parameter variables. And constructing a quadrupole permanent magnet inner rotor structure of the BL-PMSM according to an N and S polarity alternating sequence. The inclined plane connection combined magnetic pole structure can effectively avoid local fusion of air gap flux density waveforms, reduces pulsation rates of torque and suspension force, and is suitable for the technical field of high-speed permanent magnet synchronous motor magnetic suspension rotation driving.

The present invention discloses an air outlet adjustment mechanism, method and air outlet adjustment method for improving thermal comfort, which belongs to the technical field of vehicle-mounted air conditioners and solves the technical problem that the wind speed of the air outlet of the existing vehicle-mounted air conditioner is high, resulting in low thermal comfort for the human body. The adjustment mechanism is arranged in the air outlet duct of the air conditioner; the air outlet adjustment mechanism includes two groups of adjustment mechanisms, and the two groups of adjustment mechanisms are respectively fixed on the two opposite inner walls of the air outlet duct; the adjustment mechanism includes a driving mechanism and a plurality of fins arranged at intervals along a first direction, and the driving mechanism can drive the fins to rotate around a second direction, and the first direction, the second direction and the length direction of the air outlet duct are perpendicular to each other; the air outlet adjustment method is applied to the air outlet adjustment mechanism; the air outlet adjustment method for improving thermal comfort is applied to the air outlet adjustment method. The present application can improve the turbulence intensity of the airflow at the air outlet of the air outlet duct of the air conditioner, and the wind feeling is close to natural wind, which can greatly improve the comfort of the occupants.

This invention discloses a weaving method for achieving composite jacquard weave based on rib knit, comprising: weaving two different colored yarns interlaced in each row of loops based on rib knit; jacquard weaving on the reverse side of the fabric, and displaying the composite jacquard pattern or design on the front side of the rib knit according to the colors, thereby obtaining a woven fabric with composite jacquard weave on rib knit. This invention also discloses a woven fabric for achieving composite jacquard weave based on rib knit. This invention enhances the color and variety of rib knit structures.

The invention discloses an electrode structure of an impressed current cathodic protection system of an ocean platform, and relates to the technical field of electrode structures, the electrode structure comprises at least two bases, the bottom of each base is provided with a mounting end, and the two mounting ends are jointly provided with a guide rod; the moving assembly is movably arranged on the guide rod in the length direction of the guide rod; one end of the sinking rod is connected to the moving assembly, and the other end of the sinking rod extends into seawater; and the electrode assembly is hinged to the end, away from the moving assembly, of the sinking rod, and the position of the electrode assembly can be adjusted within a certain range so as to meet the protection requirements of different areas.

The invention belongs to the technical field of surface acoustic waves, and provides a TC-SAW resonator and a filter containing the TC-SAW resonator, the TC-SAW resonator comprises a piezoelectric substrate, a functional layer containing an interdigital transducer and a temperature compensation layer which are stacked in sequence; the two pairs of bimetal strips are arranged above the interdigital transducer, and each pair of bimetal strips comprises a bus edge metal strip and an active region metal strip. In the orthographic projection to the functional layer, the edge of one side of each bus edge metal strip is attached to the edge of one side of the corresponding bus and is arranged in a gap area of the interdigital transducer; and the active region metal strip is provided with a part which is overlapped with the active region of the interdigital transducer. By arranging the novel structure of the double metal strips, the sound velocity adjustment of the gap region can be realized, the waveguide capability is improved, the stray mode is effectively inhibited, the transverse energy leakage is prevented, and the quality factor of the resonator is improved.

The invention discloses an accurate atom molecule saturated absorption spectrum frequency wavelength detection method and system, and the system comprises a high-stability laser source, a first polarization splitting prism, a first plane mirror, a beat frequency interference module, an optical phase-locked loop and an acousto-optic modulator, and the output end of detection laser is connected with the input end of the first polarization splitting prism; a first light path refraction end of the first polarization splitting prism is connected with an input end of the beat frequency interference module, an output end of the beat frequency interference module is connected with an input end of the optical phase-locked loop, and an output end of the frequency reference source is connected with the input end of the optical phase-locked loop. The output end of the optical phase-locked loop is connected with the control input end of the AOM driver, and the control output end of the AOM driver is connected with the input end of the acousto-optic modulator. Controllable tuning of the frequency of the detection laser is realized by arranging the acousto-optic modulator, the change of an acousto-optic modulation diffraction angle is effectively avoided, and the frequency of the detection laser is quickly and controllably locked.

The present invention belongs to the field of concrete corrosion-resistant protective materials, and discloses a flexible epoxy asphalt corrosion-resistant coating and its preparation and application. The coating comprises component 1 and component 2; component 1 comprises emulsified asphalt, polymer emulsion and asphalt-containing curing agent; optionally, it also comprises at least one of filler, wetting dispersant, thickener and defoamer; component 2 comprises epoxy resin; optionally, it also comprises diluent. The present invention forms a cross-linked structure through a ring-opening reaction between the epoxy group in the curing agent and the polymer emulsion and emulsified asphalt, thereby improving the flexibility and corrosion resistance of the epoxy asphalt coating.

The present invention discloses a vibration-damping metamaterial beam based on magnetically coupled oscillators, which relates to the technical field of vibration-damping devices, and includes: a main structure cantilever beam, a substructure cantilever beam, a magnet, a clamp, and a mass block. Specifically: the main structure cantilever beam is a thin beam structure with equal cross-section; the main structure cantilever beam is divided into n sections, and a pair of substructure cantilever beams are added to one side of each section of the beam to form a unit cell. The free end of the substructure cantilever beam is fixed with a mass block, and an L-shaped clamp is added between the substructure cantilever beam and the mass block to ensure that the mass block can be fixed on the substructure cantilever beam; the magnet is embedded in the mass block. By adjusting the magnetic spacing, the size and characteristics of the nonlinear magnetic force are changed. The metamaterial beam based on nonlinear magnetic coupling of the present invention can achieve bandgap widening at low frequencies, thereby improving the low-frequency vibration suppression performance.

The application discloses an NH2-COFS@ZnS photocatalytic material and a preparation method and application thereof. A multi-amino aromatic ligand and a multi-aldehyde aromatic ligand are combined into an NH2-COFS material through a Schiff base reaction, and the NH2-COFS material is combined with a zinc salt and a sulfur source through a hydrothermal reaction to obtain an NH2-COFS@Zn photocatalytic material. The NH2-COFS@ZnS photocatalytic material has excellent photocatalytic activity, good structural stability and reusability, can be applied to photocatalytic reduction of CO2, and has the advantages of simple preparation method, low cost and meeting industrial production.

This utility model relates to the field of food processing technology and discloses a magnetic field treatment device for improving protein emulsification properties and reducing protein allergenicity. The device includes: a sample bottle, a circulating water pump, and a magnetic field generating mechanism connected in a sequential cycle. The sample bottle has an inlet pipe and an outlet pipe. The circulating water pump is connected to the sample bottle through the inlet pipe, and the magnetic field generating mechanism is connected to the sample bottle through the outlet pipe. This utility model, by setting up a sample bottle, a circulating water pump, and a magnetic field generating mechanism connected in a sequential cycle, simultaneously achieves the circulating transport of protein liquid and uniformly treats the protein liquid with a magnetic field to generate Lorentz force. It is simple and practical, and can effectively improve protein emulsification properties and reduce protein allergenicity.

The invention discloses a ramming dry material for a copper smelting system and a preparation method of the ramming dry material. The ramming dry material is obtained by proportioning a particle mixture, a fine powder mixture, a binding agent, an activating agent and a sintering agent in proportion, mixing and grinding. According to the ramming dry material, a particle mixture and a fine powder mixture are modified, surface defects and surface porosity are reduced, the ramming dry material becomes more compact, after subsequent sintering is conducted through a two-step sintering method, the crystal form of a particle structure is converted into mullite, the characteristics of particles are changed from the substantial structure, the density is larger, the ramming dry material is harder, and the creep rate is low; the physical characteristics of compressive strength, thermal shock resistance, creep resistance and the like after the ramming dry material is used are greatly improved, the service life is prolonged, large auxiliary lining construction operation errors can be allowed, the influence of construction operation is small, and long-term use of the lining can be guaranteed.

The utility model relates to the technical field of intelligent control, in particular to a posture detection circuit and an intelligent terminal. According to the attitude detection circuit, a hardware circuit of the attitude detection circuit is improved, the filter circuit is arranged, and the characteristics of the filter circuit can be changed by adjusting the values of a resistor and a capacitor, so that different application requirements are met. Meanwhile, in combination with the characteristics of signal acquisition of the attitude detection unit, the filtering unit can filter interference signals to the greatest extent, so that the attitude detection accuracy is improved, the interference signals can be filtered to a great extent, and the situation that the control unit generates wrong reminding information due to signal interference is avoided; therefore, the interference to the user in the use process is reduced, and the use experience is improved.

The invention discloses a preparation and inspection method of salmon emulsion gel for improving dysphagia, relates to the technical field of preparation and inspection of protein emulsion gel, and solves the problems of dysphagia due to diet rich in protein and insufficient functional fatty acid intake of most of old people. And a salmon emulsion gel product performance verification system is not sound. On the molecular level, a large-size myofibrillar protein filament aggregate is converted into nano-sized myofibrillar micelles, the nano-sized myofibrillar micelles are dissociated in oil and are connected and aggregated with other proteins, and the molecular mechanism of the nano-sized myofibrillar micelles in the aspects of stabilization of salmon emulsion gel and thickening of texture can improve the stability of the salmon emulsion gel. The salmon emulsion gel product can be used for changing the structure and the self-assembly characteristic of protein, effective and comprehensive inspection is carried out on the salmon emulsion gel product, and the effect of improving dysphagia of the salmon emulsion gel product is strongly proved.

This invention discloses a mid-to-far-infrared narrowband light source for MEMS, comprising a substrate, a suspension support layer, a heating resistor layer, and a radiation functional layer. The substrate is a silicon substrate. The suspension support layer is fixed to the substrate by anchor points. The heating resistor layer is disposed on the suspension support layer, and the radiation functional layer is disposed above the heating resistor layer. The suspension support layer and the heating resistor layer have Y-shaped grooves forming a Y-beam suspension structure. The Y-beam suspension structure is connected to the substrate by anchor points to form thermal isolation. The surface of the radiation functional layer has a periodically arranged array of micro / nano structures. The period and size of the micro / nano structure array are on the same order of magnitude as the target infrared wavelength, forming an artificial interface with specific equivalent refractive index and resonance characteristics to achieve narrowband spectral output. This invention can reduce heat conduction from the radiation region to the substrate, reduce heat conduction loss, reduce heat leakage, improve thermal isolation performance, and reduce heat capacity, thereby enabling the beam to heat up and cool down rapidly.

The invention relates to a gastrodia elata composite product and application thereof.The gastrodia elata composite product is prepared by mixing, by weight, 25-75 parts of fresh gastrodia elata and 15-65 parts of fresh pyrrosia lingua, conducting high-temperature water extraction and alcohol precipitation, deproteinization and polysaccharide splitting combination and alcohol precipitation refining to obtain gastrodia elata composite polysaccharide, then adding gastrodin with the final concentration of 1-10% and the balance distilled water, and conducting sterilization and sterilization to obtain the gastrodia elata composite product. And mixing, freezing to dryness, and carrying out vacuum packaging. According to the invention, fresh gastrodia elata and pyrrosia lingua polysaccharide are extracted and refined, so that the peculiar smell and taste of gastrodia elata are effectively changed, and the health-care effect of the product can be enhanced through high-content polysaccharide components; gastrodin is additionally added and interacts with gastrodia elata and pyrrosia lingua polysaccharide, so that the wind dispelling curative effect of the product is greatly enhanced, the polysaccharide extraction rate is effectively improved, the drying step of fresh medicinal materials of gastrodia elata and pyrrosia lingua is reduced, the production efficiency is greatly improved, and the investment of production equipment is reduced.