40results about How to "Regulatory strength" patented technology

The invention discloses an advanced oxidative coupling device and process for treating organic wastewater difficult to degrade. A main device body comprises an ozone oxidation-multi-dimensional electro-catalysis/microelectrolysis area, an ozone oxidation-microelectrolysis/Fenton area, a coagulation area and an inclined plate sedimentation area, wherein the ozone oxidation-multi-dimensional electro-catalysis/microelectrolysis area comprises a multi-dimensional electrolysis/microelectrolysis area at the upper part and an ozone oxidation area at the lower part; the ozone oxidation-microelectrolysis/Fenton area comprises a microelectrolysis/Fenton area at the upper part and an ozone oxidation area at the lower part. The device combines four levels of advanced oxidation systems, and electrocatalytic oxidation, ozone oxidation, Fenton oxidation and a microelectrolysis reaction are mutually coupled in function, so that an organic matter difficult to degrade is subjected to multi-level oxidation to realize complete oxidative cracking; when the device is used for treating the organic wastewater difficult to degrade, the yield and the production rate of *OH are increased, the liquid phase transfer process is accelerated, the overall current efficiency of the device is increased, operation expenses are saved, flexible regulation and control of a process unit are realized, and the device can be used for treating various kinds of organic wastewater difficult to degrade.

The invention relates to a portable terahertz spectrum detection device and a detection method, and aims at providing a portable terahertz spectrum detection device and a method which can conduct measuring on terahertz spectra of samples with different thicknesses and different absorption characteristics. According to the technical scheme, the portable portable terahertz spectrum detection device comprises a case body, a light splitting module, a phase angle compensation module, a detection light path module, a terahertz generating module, a terahertz detecting module and a terahertz light path module. The terahertz spectrum detection method comprises the following steps that 1, a time domain waveform Er(t) is collected; 2, the center of a sample is located on the waist of a terahertz beam; 3, a time domain waveform Es(t) of the sample is measured; 4, Fourier transforming is conducted respectively to obtain frequency domain distribution of two signals; 5, a data processing model based on a Fresnel formula is adopted; 6, operation from the third step to the fifth step is repeated, and terahertz spectrum signals of the samples in different polarization directions are obtained.

The invention relates to a method for efficiently manufacturing a micro channel by combining femtosecond laser polarization selective ablation with chemical acid etching, and belongs to the technical field of femtosecond laser application. For the characteristics of crystalline state materials, the partial instant electronic dynamic state in the mutual action process of laser and the materials is adjusted by adjusting the laser polarization parameter and the included angle of the material crystal axis, materials in the laser machining area are triggered to be modified, and the machining efficiency and accuracy of the micro channel are improved with the assistance of chemical acid etching. The method is simple and efficient and has important study significance in the field of micro fluid machining.

The invention discloses medical auxiliary turning-over and back patting equipment. The equipment comprises a hollow bed board and a flat trolley. The medical auxiliary turning-over and back patting equipment can effectively assist medical staff in turning over a patient, complications caused by the fact that the patient does not turn over after lying in bed for a long time are effectively avoided,meanwhile, patting of the back of the patient by the medical staff can be simulated so as to promote sputum excretion of the patient, and direct contact between the medical staff and the patient canbe reduced; labor intensity of medical staff can be reduced; a rectangular stink cover plate is arranged, so that stink emission can be effectively avoided; the back patting device can simulate patting of the back of the patient by the medical staff; excrement of the patient can be collected through an excrement collecting tank; sputum spitted by the patient can be collected through a sputum collecting tank; the inner side face of the excrement collecting tank can be cleaned through a first liquid pump; waste is conveniently cleaned through the arrangement of the flat plate trolley; and the patient can conveniently get in and out of the bed through the arrangement of foldable handrails.

The invention provides a polyvinyl alcohol-ethylene copolymer honeycomb porous membrane and a preparation method thereof. The preparation method comprises the following steps: firstly, a polyvinyl alcohol-ethylene copolymer is dissolved in a mixed solvent of isopropanol and water in a mass ratio of (1: 2)-(2: 1) to prepare a polyvinyl alcohol-ethylene copolymer solution with the mass fraction of 7%-12%; then, after a polyvinyl alcohol-ethylene copolymer film is prepared through spin coating, heat treatment is conducted at the temperature 1 to 10 DEG C lower than the boiling point of an azeotrope of isopropanol and water, a solvent phase is removed, and a honeycomb-shaped porous film is formed; and finally, annealing treatment is carried out to obtain the polyvinyl alcohol-ethylene copolymer honeycomb porous membrane. The molecular chain of the selected polyvinyl alcohol-ethylene copolymer comprises a hydrophilic polyvinyl alcohol chain segment and a hydrophobic polyethylene chain segment, and the honeycomb porous membrane with uniform distribution, small pore diameter and uniform pore diameter is prepared through multi-stage solvent volatilization by utilizing the difference of solubility and boiling points of isopropanol and water on the polyvinyl alcohol-ethylene copolymer.

The invention belongs to the technical field of molecular recognition, and particularly relates to a surface-enhanced Raman substrate with a three-dimensional multilayered structure and a preparationmethod thereof. The surface-enhanced Raman substrate with the three-dimensional multilayered structure comprises a substrate, a ZnO seed layer growing on the surface of the substrate, a ZnO nanorod array growing on the ZnO seed layer, an Ag nano-particle layer coating on the ZnO nanorod array, an Al2O3 dielectric layer growing on the structural surface of the ZnO nanorod array coated with the Ag nano-particle layer and an Ag nano-particle layer deposited on the Al2O3 dielectric layer. According to the surface-enhanced Raman substrate with the three-dimensional multilayered structure and the preparation method thereof, a method combining a chemical method and a magnetron sputtering and atomic layer deposition technology is adopted to prepare a novel composite structural SERS substrate, thestructure of the novel composite structural SERS substrate comprises a three-dimensional structure, a core-shell structure, a sandwich structure and the like, and the flexible and varied SERS substrate with abundant structures is of great significance for studying multiple SERS mechanisms and expanding the application field of SERS.

The invention discloses a stack type ball dropping device and a ball serving mechanism capable of carrying multiple badmintons. The stack type ball dropping device comprises a top layer cover plate, a bottom layer fixing plate and a plurality of supporting rods, at least two ball supporting blocks are arranged on the supporting rods in the vertical direction in a layered mode, each ball supporting block is rotationally connected onto the corresponding supporting rod, and the inner side of one badminton and the ball support are supported by every two adjacent up ball supporting block and down ball supporting block respectively; the ball serving mechanism capable of carrying the multiple badmintons comprises a support, a cross arm is arranged on the support, a ball dropping device is arranged on the cross arm, the portion, below the cross arm, of the support is rotationally connected with a racket, and at least one adjusting component capable of adjusting the ball hitting inclined angle of the racket is arranged on the rack. According to the stack type ball dropping device, through the rotation of the ball supporting blocks, the badmintons can be placed in sequence, or the badmintons can be released in sequence, the structure is simple, and the clamping and the releasing are convenient; the ball serving mechanism can simulate the ball hitting motion that the human hand holds the racket, the adjustment on aspects of the angle, the speed and the strength of the badminton hitting is achieved, the operation is convenient, the adjustment is sensitive, and the precision is high.

The invention provides a split Hopkinson pressure bar electromagnetic buffering and energy absorbing device comprising a first-layer impact bearing energy absorbing system, a second-layer impact bearing energy absorbing system and a third-layer impact bearing energy absorbing system, wherein the first-layer impact bearing energy absorbing system is composed of a first metal base, two ropes, two fixed pulleys, a first iron block, a metal connecting rod and an annular electromagnet; the second-layer impact bearing energy absorbing system is composed of an annular brake, a second spring and two groups of levers. The third-layer impact bearing energy absorbing system is composed of a second metal base, an annular electromagnet, a first spring and a second iron block. According to the split Hopkinson pressure bar electromagnetic buffering and energy absorbing device, the mechanical energy generated when an iron block connecting piece is impacted is utilized, through the force and energy conduction effects of the fixed pulleys, based on the lever principle, the pressure exerted by the annular brake on the connecting rod is enhanced, so that the friction force exerted by the annular brake on the connecting rod is increased, and therefore the buffering purpose is achieved.

The invention relates to a slag-based alkali-activated cementing material and a preparation method and application thereof, and the slag-based alkali-activated cementing material comprises the following components: 70-99 parts by mass of slag; 1-30 parts by mass of calcium silicate slag; an alkali activator accounting for 1%-5% of the total mass of the slag and the calcium silicate slag in the content of Na2O in the alkali activator. Compared with an existing alkali-activated slag cementing material and a preparation technology thereof, the slag-based alkali-activated cementing material provided by the invention has the advantages that the strength performance is excellent, the setting time is easy to adjust, the alkali doping amount is low, the modulus of an excitant does not need to be adjusted in advance, and the like, so that the cost is relatively low, the preparation process is simple, and the market application prospect is wide.

The biomedical calcium sulfate/collagen composite particle disclosed by the invention is composed of calcium sulfate and collagen. The particle contains 98-99.99% and 0.01-2% of collagen by weight. The preparation method includes the following steps: mixing calcium sulfate hemihydrate powder and medical collagen solution and casting to solidify into granules, wherein each granule is composed of calcium sulfate and collagen with controllable content. The ingredients in the calcium sulfate/collagen composite particle prepared by the method are controllable, and the calcium sulfate/collagen composite particle has good strength, biodegradable property and bone regeneration inducing ability and can be widely used in the field of biomedical materials such as bone filling materials.

The invention discloses a non-paraxial self-accelerated frequency-doubled light beam control device and method, which is applied to the technical field of optics. The device comprises an electric field unit, a quasi-phase matching unit and a filtering unit, wherein the electric field unit is electrically connected with the quasi-phase matching unit and used for loading an electric field to the quasi-phase matching unit for generating a linear electro-optical effect in the quasi-phase matching unit; the quasi-phase matching unit is further arranged at the front end of the filtering unit and used for converting a fundamental frequency light beam from a light source into a non-paraxial self-accelerated frequency-doubled light beam according to a quasi-phase matching condition, adjusting the quasi-phase matching condition by utilizing the linear electro-optical effect to control a polarization state and the intensity of the non-paraxial self-accelerated frequency-doubled light beam, and transmitting the controlled non-paraxial self-accelerated frequency-doubled light beam to the filtering unit; and the filtering unit is used for filtering the fundamental frequency light beam passing through the quasi-phase matching unit from the received light beam to obtain the controlled non-paraxial self-accelerated frequency-doubled light beam. The device can improve the flexibility of light beam control.

The invention provides a random laser with an adjustable angular spectrum for high-contrast imaging. The laser has the advantages of low threshold value, irrelevance between the threshold value and the pumping direction, long storage period, adjustable angular spectrum and the like. The random laser comprises a pump light source, a gain microcavity with random scattering and an optical fiber waveguide. Two or more gain microcavities with random scattering are coupled to different positions on the side face of the optical fiber, the different gain microcavities with random scattering are selectively pumped through the pump light source, the intensity of low-frequency angular spectrum components in a plane is effectively regulated and controlled, and random laser with different angular spectrum distributions is obtained at the fiber end of the optical fiber. When random laser of an annular angular spectrum is used as a light source of a microscope, the imaging contrast ratio of a biological sample is improved, and meanwhile speckle noise is effectively restrained.

The invention provides an anti-vibration device and a tower device of a wind turbine generator system. The anti-vibration device comprises a frame body and a pendulum mass mechanism. The frame body isfixedly arranged on a structure to be suppressed to vibrate. The pendulum mass mechanism is hung on the frame body, and the pendulum mass comprises multistage swing arms and a mass block. The ends ofthe multistage swing arms are connected with each other in a pendular mode. The mass block is arranged on the last stage swing arm. According to the anti-vibration device and the tower device of thewind turbine generator system, when the wind turbine generator system vibrating with own low frequency, length of the swing arms are reduced and the problem that long swing arms causing installation space in the tower in the vertical direction limited is overcome. Meanwhile, adjustment of vibration frequency of the pendulum mass mechanism is convenient.

The invention provides a self-cured metal anti-corrosion hybrid silica sol, and a preparation method and application thereof. The hybrid silica sol contains a compound represented as in a formula I, wherein x, y, n and m are all integers, and R<1>, R<2>, R<4> and R<5> are alkyl groups and can be same or different.

The invention discloses a ball feeder for tennis training. The ball feeder comprises a support frame, a ball storage box, a ball conveying pipeline, a power mechanism and a ball hitting structure. A mounting base is arranged in the middle of the support frame and is connected with the power mechanism. The ball hitting structure is connected with the lower portion of the ball conveying pipeline and the power mechanism. A support block on the upper portion of the support frame is connected with the lower portion of the ball conveying pipeline. The hopper-shaped ball storage box is connected with the upper portion of the ball conveying pipeline. Tennis balls are placed in the ball storage box. A temporary storage box used for storing to-be-hit tennis balls temporally is arranged on the lower portion of the ball conveying pipeline. The upper portion of the temporary storage box is connected with the lower end of the ball conveying pipeline through a tapered cavity. A bottom opening is formed in the lower end of the temporary storage box and is matched with the ball hitting structure. The ball feeder has the advantages of simple structure, reliability in use, convenience in disassembling, assembling and carrying, wide speed regulation range, high regulation accuracy and applicability to training requirements of diffident levels of users.

The invention provides a reflective screen capable of improving the strawberry illumination intensity. The reflective screen comprises a support arranged in a greenhouse, a frame-shaped support perpendicularly connected with the support, a motor arranged at the upper end of the support, a speed reducer connected with the motor and a rotation shaft connected with the output end of the speed reducer; the two ends of the rotation shaft are rotatably arranged on the two side faces of the support respectively; the side surface of the rotation shaft is connected with a sunshade net which is arranged at the upper end of the frame-shaped support. The reflective screen further comprises a reflective screen body and a fixing rod and an adjusting rod which are installed on the side wall of the greenhouse, and the two ends of the reflective screen body are arranged on the fixing rod and the adjusting rod respectively. According to the reflective screen capable of improving the strawberry illumination intensity, through the arrangement of the motor, the speed reducer, the sunshade net and the rotation shaft, automatic folding and unfolding of the sunshade net are achieved, and not only is the illumination intensity adjusted and controlled, but also the problem that the efficiency is low due to the fact that manual net drawing is adopted is solved; through the arrangement of the reflective screen body, light on the wall can be reflected to the ground to be used for strawberry growth, and the strawberry yield is greatly increased.

The invention discloses a flower-like beta-NaYF4:Yb<3+>/Er<3+> hexagonal prism micron crystal luminescent material with adjustable red light and green light intensity, wherein the luminescent material is prepared in one step by using sodium fluoride as a fluorine source through a simple and rapid method, the morphology structure of the flower-like hexagonal prism micron crystal is similar to that of just blooming lily, the crystallinity is good, the dispersity is good, the size is uniform and controllable, and by changing the excitation power, the red light intensity and the green light intensity of the single flower-like beta-NaYF4:Yb<3+>/Er<3+> hexagonal prism micron crystal can be flexibly regulated and controlled. The flower-like beta-NaYF4:Yb<3+>/Er<3+> hexagonal prism micron crystal luminescent material is easily soluble in water, does not need to be modified, and has important application prospects in the fields of anti-counterfeiting, biological imaging, sensing and the like.

The invention discloses a surgical robot hand instruction sensing device, and relates to the technical field of surgical robot instruction sensing. The mechanical arm comprises a sensing mechanism, the sensing mechanism comprises a sensing rotating shaft, an instruction sensing grip is installed at one end of the sensing rotating shaft, a synchronous operation assembly capable of controlling the two mechanical arms at the same time is installed in the instruction sensing grip, and a pressure adjusting assembly used for adjusting finger pressing stress is further installed in the instruction sensing grip. Through the structural design, the device can simultaneously control opening and closing of two surgical instruments by a single hand when operating a robot, control of the surgical instruments does not need to be continuously switched, surgical operation is more convenient and faster, and by pushing a pressure adjusting plate to move in an instruction sensing grip and extruding a reset spring to contract, the surgical instrument can be controlled to be opened and closed by a single hand. Further, the force required for pushing the first holding block and the second holding block can be adjusted, and adjustment can be performed according to the habits of each doctor.

The invention provides a solid waste-based binding agent for a sintered water-permeable brick and a preparation method of the solid waste-based binding agent. The solid waste-based binding agent is prepared from the following components in percentage by weight: 7 to 20 percent of CaO, 10 to 18 percent of Al2O3, 50 to 62 percent of SiO2, 2 to 6 percent of MgO, 1 to 5.5 percent of K2O, 1 to 4 percent of Na2O, 0.5 to 4.0 percent of Fe2O3, 0 to 4 percent of B2O3 and 0 to 0.5 percent of ReO. The obtained solid waste-based binding agent is further prepared into a water-permeable brick, the obtained water-permeable brick is good in performance, the water permeation coefficient is larger than or equal to 0.01 cm/s, the compressive strength is larger than or equal to 30 MPa, the breaking strength is larger than or equal to 4 MPa, the mass loss rate after 25 times of freezing and thawing cycles is smaller than or equal to 5%, and the compressive strength loss rate is smaller than or equal to 20%. The porosity, the aperture and the strength of the sintered water-permeable brick are effectively regulated and controlled, the production cost is reduced, effective utilization of wastes is realized, the production cost is greatly saved, and the economic and environmental benefits are improved.

The invention discloses a bag cage for a wrinkled filter bag and a processing technology of the bag cage, and relates to the technical field of bag cage processing, the bag cage comprises an external unit, the external unit comprises a top cover with a ventilation channel, the outer edge of the top cover is provided with a plurality of outer ribs, and the plurality of outer ribs are distributed in an annular array; the internal unit comprises a bottom support, a plurality of supporting arms are arranged on the peripheral side of the bottom support, a plurality of inner ribs are arranged on the inner edge of the bottom support, and the inner ribs are distributed in an annular array mode; the middle lining unit comprises a supporting ring, and a plurality of supporting rods are arranged on the peripheral wall of the supporting ring; the ends, away from the top cover, of the outer ribs are fixedly welded to the corresponding supporting arms, the ends, away from the bottom support, of the inner ribs are fixedly welded to the top cover, and the supporting rings are clamped between the outer ribs and the inner ribs. The bag cage is supported by the inner ribs and the outer ribs, the structural strength of the bag cage is high, the bag cage is produced in a split manufacturing-matched assembling-welding fixing mode, welding points are located at the two ends of the bag cage, welding operation is more convenient at the end positions, and the production efficiency of the bag cage is improved.

The preparation method comprises the following steps: synthesizing an Al-TiB2 intermediate alloy containing nanoscale TiB2 ceramic particles through an in-situ reaction, adding the Al-TiB2 intermediate alloy into a magnesium alloy melt to obtain a TiB2/Mg composite material, carrying out hot rolling to obtain a thin plate, alternately stacking the thin plate and a pure magnesium plate, and carrying out vacuum hot pressing sintering to obtain the layered magnesium-magnesium-based composite material plate. And the layered magnesium/magnesium-based composite material plate with excellent performance can be prepared through multi-pass hot rolling. In the macroscale, the ceramic particles are non-uniformly distributed in a layered manner, and in the microscale, the ceramic particles are uniformly distributed in the magnesium-based composite material layer. The strength, plasticity and toughness of the laminated composite material plate can be flexibly and accurately regulated and controlled by regulating and controlling the content of TiB2 particles in the laminated composite material and the interlayer spacing, the problem that the toughness of the composite material is mismatched is hopefully solved, and the method has a wide application prospect.

The invention provides a metal foam composite material and a preparation method thereof. The metal foam composite material comprises an inner core layer and a metal layer arranged on at least part of the surface of the inner core layer, wherein the density of the metal layer is not lower than 90%, the inner core layer comprises metal and a hollow inorganic material, and the hollow inorganic material is selected from at least one of fly ash, Al2O3 hollow ceramic balls or hollow silicon carbide. According to the invention, the inner core layer of the metal foam composite material comprises the metal and the hollow inorganic material, the pores exist in the inner cavity of the hollow inorganic material, and the density of the metal layer of the metal foam composite material is not lower than 90%, so that the metal foam composite material is small in density, high in strength and excellent in energy absorption and buffering performance; and the preparation method of the metal foam composite material is simple and easy to implement, and the metal foam composite material can be efficiently prepared.