40results about How to "To achieve the absorption effect" patented technology

The invention discloses a multilayer structure plasma meta-material tunable ultrawide-band wave absorber of which the structure comprises a bottom metal reflecting plate, a dielectric substrate whichis arranged on the metal plate, solid state plasma resonant units which are arranged on the dielectric substrate, "Y"-shaped solid state plasma resonant units which are arranged in the dielectric substrate and solid state plasma columns which connect all the resonant units. The wave absorber has great absorbing effect for the TE polarized waves and controls the excitation area of the resonant units formed by the solid state plasma to realize excitation of different resonant units through programming so as to achieve the objective of dynamic regulation and control of different frequency of thewave absorber and realize ultrawide-band absorbing of the wave absorber; besides, the working frequency of the wave absorber can cover the whole Ku band under the condition of appropriate selection ofthe excitation area, and absorbing of low frequency electromagnetic waves can also be realized under the condition of small physical size.

The invention relates to a method for suppressing parasitic oscillation in a gain medium of a grazing incidence plate strip. According to the method, a layer of dielectric material is plated on three non-light-through surfaces of the grazing incident plate strip, and the dielectric material shows the absorption characteristic on the parasitic oscillation of the gain medium. The method is simple and is wide in application range, and a better suppression effect on the parasitic oscillation is exerted. A plate strip crystal comprises six surfaces, the parasitic oscillation in the crystal can be enhanced by reflection or scattering of each surface, thus, an absorption medium is plated on all other surfaces except a pumping surface and a light through surface, and a parasitic oscillation loop is cut off to achieve an absorption effect. By the method, the parasitic oscillation of the gain medium with such structure can be effectively suppressed, the energy storage and the gain of the gain medium are improved, the amplified spontaneous radiation (ASE) of a system is reduced, and the output light pulse energy is improved. The method belongs to the technical field of laser.

The invention provides a shower nozzle-structured mesoporous carbon and nanometer cobalt compound, wherein nanometer cobalt is embedded in mesoporous carbon pores. By enabling magnetic nanometer metalcobalt particles to be embedded in mesoporous carbon pores, dielectric loss and magnetic loss on electromagnetic wave are achieved, and wave-absorption strength and loss frequency band can be controlled easily, so that the electromagnetic wave absorption effect is improved effectively; meanwhile, metal cobalt is high in mass and harmful to a human body; and by enabling a few nanometer cobalt particles to be embedded in mesoporous carbon pores, and compared with a cobalt material, the wave absorption effect is ensured, and lighter weight, higher safety and plasticity are achieved, so that thecompound can be widely doped to various electromagnetic wave absorption materials.

The invention relates to a reflection type condensed light type solar battery module, and the solar battery module contains a reflection type collecting lens, an infrared isolation element and a solar battery chip. The product provided by the invention can effectively reduce heat energy generated by infrared light wave length energy and eleminate the problem that the condensed light type solar battery module has a very high temperature.

The invention discloses an agricultural machinery grain drying treatment device. The agricultural machinery grain drying treatment device comprises a box body, the top of the box body is fixedly connected with a first placing box, the box body is internally and fixedly connected with a fixed plate, the top of the fixed plate is fixedly connected with a storing box, the bottom of the box body is fixedly connected with a second placing box, the first placing box is internally and fixedly connected with a stirring mechanism, and the back face of the box body is fixedly connected with a collectionbox. According to the agricultural machinery grain drying treatment device, by means of the arrangements of the fixed plate and the storing box, the effect of placing grain is achieved; by means of the stirring mechanism, the effect of stirring the grain is achieved; by means of a first air fan and the collection box, the effect of absorbing dust generated by the grain is achieved; by means of adust sensor, the effect of detecting the dust is achieved; by means of heating blocks, the effect of generating heat is achieved; by means of a stretching and contracting mechanism, the effect of driving the storing box to shake is achieved; and by means of the agricultural machinery grain drying treatment device, the grain can be effectively dried, and the agricultural machinery grain drying treatment device is convenient to use for people.

The invention relates to an intelligent household mute central control machine case. The intelligent household mute central control machine case includes an upper-layer case cover, a middle-layer control mainboard and a lower-layer case bottom; the upper-layer case cover, the middle-layer control mainboard and the lower-layer case bottom are all provided with matched installation holes, a core processor is arranged on the control mainboard, the upper-layer machine case is internally provided with a boss matched with the core processor, the boss is provided with a heat-radiating bulge arrangedin a large area, and the heat-radiating bulge is tightly attached to the core processor. The inner surfaces of the upper-layer case cover and the lower-layer case bottom are covered with electromagnetic shielding material layers.

The invention relates to a sound wave reverse time migration method based on a Higdon third-order boundary condition, and belongs to the field of seismic exploration migration imaging. The sound wave reverse time migration method has the specific steps of: step 1, carrying out continuation of a correct time wave field by taking seismic wavelets as correct time disturbance, saving central wave field values at the last two moments, and calculating and saving a wave field value in a boundary region based on the Higdon third-order boundary condition; step 2, carrying out continuation of a reverse time wave field by taking seismic records as reverse time disturbance, and reconstructing a central wave field value of the correct time wave field by utilizing the saved central wave field values and the wave field value of the boundary region; step 3, and multiplying a correct time wave field value and a reverse time wave field value at each point, regarding the result as an imaging value of the point, and adding the imaging values of all moments to obtain a final imaging value of the point. The sound wave reverse time migration method eliminates boundary reflection by utilizing the Higdon third-order boundary condition, achieves the reconstruction of the correct time wave field based on boundary storage of the boundary condition, can effectively reduce memory consumption of conventional reverse time migration, and has higher imaging precision.

The invention discloses a settlement prevention construction method for a highway. The method comprises the following steps of downwards digging earthwork with a certain depth at a roadbed elevation,and packing a reinforcing material; vertically penetrating a stone column through the reinforcing material and enabling the stone colume to go deep into the ground, and exposing a part of the stone column; carrying out dynamic compaction and leveling on the reinforcing material; enabling a waterproof film to penetrate through the exposed part of the stone column and laying the waterproof film on the reinforcing material after dynamic compaction; laying a woven reinforcing mesh on the waterproof film to be tightly connected to the stone column; pouring concrete at the reinforcing mesh and submerging the stone column, and maintaining the poured concrete; enabling kerbs to go deep into two sides of the pavement; and laying stones on the two sides of the pavement. According to the settlement prevention construction method for the highway, the waterproof film is laid at the deep roadbed, so that the erosion of rainwater on the deep roadbed is avoided, and thus sedimentation is avoided; andthe stones are arranged, so that the erosion of the rainwater to the roadbed is reduced, and meanwhile, the vibration of the pavement is reduced, and thus the pavement can be used for a long time.

The invention discloses a device for cleaning fallen leaves for gardens, which comprises a machine body, a first motor is fixedly connected to the bottom of the inner cavity of the body, an output shaft of the first motor is fixedly connected to a driving gear, and the surface of the driving gear A driven gear is connected through a chain transmission, and a rotating rod is fixedly connected to the axis center of the back of the driven gear, and the back of the rotating rod is movably connected to the inner wall of the body through a bearing, and a sliding shaft is fixedly connected to the surface of the chain . The present invention achieves the advantages of left and right movement by arranging the cooperation of the first motor, driving gear, chain, driven gear, rotating rod, sliding shaft, sliding rod, sliding sleeve, connecting rod, annular groove plate, broom and through groove, So as to achieve the effect of saving time and labor, the cooperation of the air outlet pipe, the fan and the air inlet pipe can achieve the effect of absorbing the fallen leaves, which brings convenience to the greening personnel, improves the work efficiency of the greening personnel, and contributes to the improvement of the garden environment. greening.

The invention relates to the technical field of shock absorber welding, and discloses a welding, sealing and clamping device for a shock absorber. The device comprises a fixed base, compression springs are fixedly connected to the inner wall of the middle of the fixed base, sliding blocks are movably connected to the inner wall of the middle of the fixed base, pressing rods are movably connected to the front faces of the sliding blocks, clamping bases are fixedly connected to the inner sides of the pressing rods, and purification cavities are formed in the middle of the fixed base. According to the welding, sealing and clamping device for the shock absorber, the clamping bases drive push rods to move, the push rods drive movable blocks to move, through cooperative use of dielectric plates,positive plates and negative plates, the effect of controlling air bags to stretch and retract is achieved, and electromagnets are powered on to generate magnetic force repelling magnetic blocks; andwhen a shock absorption barrel is welded, due to the fact that high temperature is generated during welding piece welding, bimetallic strips on the inner walls of the clamping bases are heated to generate deformation and bending, at the moment, the electromagnets are powered off, the air bags expand under the action of reset springs, and gas generated during welding is sucked into the purification cavities through gas suction pipes.

The invention discloses a device and method for reducing the concentration of nitrogen oxide in the discharged tail gas of an explosives powder production line. According to the device for reducing the concentration of nitrogen oxide in the discharged tail gas of the explosives powder production line, different circulation tanks are respectively communicated with a concentrated sulfuric acid pipeline, different circulation pumps and different tail gas decomposition towers of a nitric-sulfuric acid concentration procedure. Sulfuric acid is determined as the lower limit of the concentration of an absorbent, and circulated acid can be exchanged in time, so that the expected effect in absorbing the nitrogen oxide by using the concentrated sulfuric acid can be ensured, and the reduction of the concentration of the concentrated sulfuric acid, caused by circulation and absorption, is avoided. By adopting the device and the method, the nitrogen oxide absorption effect equivalent to those of a urea and hydrogen peroxide method and a pressurized absorption method can be achieved, the content of the nitrogen oxide in the waste gas can be reduced to be less than 500mg/m<3>, and moreover, the difficulty that the cost is too high in the operation process of the urea and hydrogen peroxide method and the pressurized absorption method is solved.

The invention discloses a novel composition of an ophthalmic Azithromycin gel preparation, a preparation method thereof and applications thereof. The researcher of the invention combines appropriate auxiliary materials with the combination of Azithromycin and citric acid to prepare the ophthalmic Azithromycin gel preparation; the combination of the Azithromycin and the citric acid in the invention can achieve better absorption of the Azithromycin, which resolves the problem that the Azithromycin is difficult to dissolve; meanwhile, the manufactured gel preparation can ensure that the drug have prolonged effects on lesion location to realize full absorption of the drug. The ophthalmic Azithromycin gel preparation of the invention has obvious pharmacological action and outstanding effects on treatment of such ophthalmic diseases as conjunctivitis, keratitis, trachoma, dacrocystitis, etc.

The invention discloses an efficient solar power station. The solar power station comprises an installation base top, wherein the upper surface of the installation base top is fixedly connected with an installation base and a bearing seat, the upper surface of the installation base is fixedly connected with a first bearing, the inner ring of the first bearing is fixedly connected with a rotary support column, the surface of the rotary support column is fixedly connected with a worm gear, and the interior of the bearing seat is fixedly connected with a second bearing. According to the efficient solar power station, the rotary support column can rotate so as to drive a solar panel to rotate circumferentially, so that an installation board can ascend and descend so as to drive the solar panel to ascend and descend axially, solar energy around the solar panel is collected and reflected to the solar panel to be absorbed; and a first light collecting board and a second light collecting board are adjusted in reflection angle, so that the solar absorption and use ratio of the solar panel is improved.

The invention discloses a heat dissipation graphene composite decorative plate and a manufacturing method. The heat dissipation graphene composite decorative plate includes a base plate, the surface of the base plate is sleeved with a resin layer, one end of the resin layer far from the base plate is equipped with a first graphene composite material layer, one end of the first graphene composite material layer is provided with a heat conduction layer, and one end of the heat conduction layer far from the first graphene composite material layer is provided with a plant fiber layer. The base plate is disposed to reach the effect composing the decorative plate, through the resin layer, the effect of protecting the base plate can be reached, by means of the first graphene composite material layer, the effect of absorbing the heat on the base plate can be achieved, through the heat conduction layer, the effect of guiding the heat in the first graphene composite material layer out can be realized, through the plant fiber layer and a calcium silicate board layer, the function of the decorative plate can be increased, and by means of the plant fiber layer, the softness of the decorative plate can be increased. The decorative plate can dissipate the internal heat, and is convenient for people to use.

The invention discloses an electromagnetic absorption structure with a wide incident angle. The electromagnetic absorption structure comprises an ITO pattern layer, a substrate, a dielectric loss layer and a good conductor layer which are stacked from top to bottom, wherein the substrate, the dielectric loss layer and the good conductor layer are rectangular plates, the substrate, the dielectric loss layer and the good conductor layer completely coincide from top to bottom, the ITO pattern layer is composed of a first ITO structure and a second ITO structure, the first ITO structure comprises fourteen rectangular ITO and an I-shaped ITO, the second ITO structure is located on the left side of the first ITO structure, and the second ITO structure and the first ITO structure are of a bilateral symmetry structure. According to the invention, the TE-mode electromagnetic wave absorbing effect is good when the incident angle ranges from 0 degree to 80 degrees, wherein when the incident angle of the TE-mode electromagnetic wave ranges from 0 degree to 70 degrees, the electromagnetic wave absorbing rate at the frequency point 9.5 GHz is stabilized to be 98% or above, and when the incident angle ranges from 70 degrees to 80 degrees, the TE-mode electromagnetic wave absorbing rate at the frequency point 9.5 GHz is stabilized to be 90% or above.

The invention discloses an industrial solid waste degradation device for geopolymer-based foam light soil production, and relates to the technical field of industrial solid degradation. The industrial solid waste degradation device comprises an industrial waste degradation device, a degradation box body, a material distribution humidifier, a pressurizer, a funnel crusher, a dust collector and a discharge port, wherein the industrial waste degradation device comprises the degradation box body, the top surface of the degradation box body is fixedly connected with the material distribution humidifier, and the outer surface of the right side of the material distribution humidifier is fixedly connected with the pressurizer. According to the device, falling solid waste is roughly and equally divided to the two sides through a material distribution head, then stirring blades are rotated through a rotator to shake and scatter the waste, biodegradation water is sprayed to the interior through a spray head in cooperation with a water suction pipe, the waste and liquid are mixed, the characteristic that the waste is roughly and equally divided is achieved, the problem of insufficient contact between excessive degradation liquid is solved, and the effect of uniformly dividing industrial solid waste and uniformly fusing the industrial solid waste is achieved.