31results about How to "Increase the absorption area" patented technology

The invention discloses a special growth-promoting microbial fertilizer for saline-alkali soil and a preparation method of the special growth-promoting microbial fertilizer, and belongs to the technical field of growth-promoting microbial fertilizer.The special growth-promoting microbial fertilizer for saline-alkali soil is obtained by mixing organic manure, ammonium humate, fungicide particles, crop straw, slow-release phosphate fertilizer particles, hydroxyapatite, chitosan and citric acid in proportion; according to the granular microbial inoculum carrier, the biochar particles and the iron-carbon composite microspheres serve as matrixes, the raw materials such as the fly ash form a foaming porous adhesive substance under the action of alkali excitation, the matrixes such as the biochar particles are bonded, a stable porous structure can be formed easily, a proper environment is provided for growth of phosphate solubilizing bacteria, and the phosphate solubilizing and growth promoting effects of the phosphate solubilizing bacteria are improved. The microbial agent particles have good water absorption and can adsorb sodium ions in soil after being watered, and calcium and magnesium components contained in the fly ash-based adhesive substance can be exchanged with the sodium ions to play a fixing role, so that the salt stress effect on crops is reduced.

The invention discloses a method for preparing a biological fertilizer by combining compound probiotics and leucine fermentation liquor, and relates to the technical field of fertilizer preparation, the method comprises the following steps: carrying out magnetic reinforcement treatment on the probiotics, carrying out ultrasonic-assisted extraction on the leucine fermentation liquor, and activating and propagating the compound probiotics, and after the treatment on the compound probiotics and the leucine fermentation liquor is completed, carrying out ultrasonic-assisted extraction on the leucine fermentation liquor to obtain the biological fertilizer. The preparation method has the advantages that the bacterial liquid is placed in a magnetic field for pretreatment, so that the activity and the stability of the probiotics can be enhanced, the probiotics can play a better role in the subsequent fermentation and application process, the metabolic activity of the probiotics subjected to magnetic strengthening treatment is remarkably improved, and the metabolic activity of the probiotics subjected to magnetic strengthening treatment is remarkably improved. According to the invention, the leucine fermentation broth is used as a raw material, organic matters in the soil can be more effectively decomposed, more nutrients are released to be absorbed by crops, ultrasonic-assisted extraction is carried out on the leucine fermentation broth, and in the treatment process, ultrasonic treatment can destroy bacterial cells, so that leucine is more fully released, and the extraction rate and purity of leucine are improved.

The utility model relates to the technical field of spinning equipment, and discloses spinning equipment for a combed cotton yarn process, which comprises a protective shell, a spinning equipment shell is mounted on the upper surface of the protective shell, and rollers are mounted on two sides of the spinning equipment shell; the driving machines are arranged on the two sides of the inner cavity of the protective shell, driving rods are coaxially installed on rotors of the driving machines, and driving blocks are rotationally connected to the surfaces of the driving rods; the motors are arranged on the surfaces of the driving blocks, rotating rods are coaxially mounted on rotors of the motors, and mounting plates are mounted at the bottom ends of the rotating rods; the additionally arranged dust suction pipe can be driven to move, so that the dust suction pipe can suck generated dust and flying catkins along the surface of the roller, and the additionally arranged motor can finally enlarge the suction area of the dust suction pipe, so that dust and flying catkins of other parts can also be strongly adsorbed; and dust and flying catkins can be cleaned more effectively.

The invention discloses a vibration reduction process method based on combination of a liquid medium and a double-mass sphere, and particularly relates to the technical field of machining, which comprises the following steps: step 1, by utilizing the principle that the sphere can freely float in the liquid medium, placing two kinds of spheres with different densities in the liquid medium, under the action of centrifugal force generated by rotation of the workpiece, the ball body is attached to the inner surface of the workpiece to form a layer capable of absorbing vibration energy, and the vibration energy of the workpiece is transmitted to a liquid medium and a machine tool system; 2, the high-density balls mainly absorb vibration impact energy, and the low-density balls efficiently transmit self vibration displacement to a liquid medium in a liquid volume discharging mode (displacement) mainly by means of the large density difference between the low-density balls and the liquid medium. The problems caused by vibration in precision machining of the hollow thin-wall slender shaft are solved.

The embodiment of the invention relates to the technical field of photoelectric detection, in particular to a laser-induced periodic structure enhanced photoelectric detector and a preparation method thereof, and the photoelectric detector comprises a substrate layer, a grating template layer, a bottom surface metal layer, a semiconductor layer and a surface metal layer from bottom to top; injection light is injected into the surface metal layer, surface plasmon polariton resonance is excited due to the nano grating structure of the surface metal layer, the absorption efficiency of the injection light is improved, and a wrinkle-shaped nano grating structure is arranged among the bottom surface metal layer, the semiconductor layer and the surface metal layer; the bottom surface metal layer, the semiconductor layer and the surface metal layer form a Fabry-Perot cavity structure, and after injected light enters a cavity, standing waves are formed in the cavity and interact with a material to generate an intra-cavity resonance enhancement effect; by adjusting the period of the grating structure of the grating template layer and the thickness of the semiconductor layer, multi-wavelength selection of the photoelectric detector can be realized. The photoelectric detector is simple and convenient to prepare, can be flexibly regulated and controlled and is suitable for batch production.

The utility model discloses a chemical material screening machine, which belongs to the technical field of material screening machines and comprises a box body, two groups of springs are fixedly connected to two sides of the inner wall of the box body respectively, a fixing plate is fixedly connected between the two groups of springs, two vibration motors are fixedly connected to the bottom of the fixing plate, a mounting groove is formed in the surface of the fixing plate, and the vibration motors are fixedly connected with the mounting groove. Mounting grooves are formed in the top of the box body, a screening box is clamped in the mounting grooves, a feeding pipe is fixedly connected to the top of the box body, two grooves are formed in the top of the box body, electric push rods are fixedly connected to one sides of the inner walls of the two grooves, baffles are fixedly connected to one ends of the two electric push rods, and a vibration motor works to drive a fixing plate to vibrate; therefore, the screening box is driven to vibrate, the purpose of screening the chemical materials poured into the screening box can be achieved, and the purpose of controlling the speed of the chemical materials flowing into the box body can be achieved by driving a baffle to move through work of an electric push rod.

The application discloses a kind of fulvic acid hydrogen peptide biological stimulant hormone fertilizer and preparation method thereof, belong to fertilizer technical field.Fertilizer is by 15~30 parts of fulvic acid, 5~12 parts of peony seed meal small molecule peptide, 20~35 parts of potassium dihydrogen phosphate and other components compound, water is made up to 100 parts, and auxiliary agent is emulsifier and chelating agent compound.Preparation first by dissolving fulvic acid, potassium phosphate in water and obtaining mixed solution, then adding small molecule peptide and auxiliary agent and stirring until the system is stable;Small molecule peptide is prepared by peony seed meal defatted powder crushing and enzymolysis, solves the problem of traditional fertilizer nutrient antagonism, unstable system, and the utilization of peony seed meal also improves resource utilization.Tomato, cucumber seedling test shows that it can significantly improve the growth index of crop root system and aboveground part, and the root-promoting and seedling-strengthening effect is better than that of similar fertilizer on the market, and the preparation process is simple, easy to industrialization, and has good agricultural application prospect.

The invention relates to the technical field of cosmetics, in particular to a rapid permeation and absorption cosmetic which comprises a phase A, a phase A1, a phase B, a phase C and a phase C1. The phase A comprises the following components: 50-70% of a solvent, 1-5% of a humectant I and 1-5% of a humectant II; the phase A1 is prepared from the following components: 0.1 to 0.5 percent of a thickening agent I, 0.1 to 0.5 percent of an emulsifying agent I, 0.1 to 0.5 percent of a skin conditioning agent I, 0.1 to 0.5 percent of a thickening agent II, 0.1 to 0.5 percent of a skin conditioning agent II, 0.05 to 0.2 percent of a preservative and 0.01 to 0.5 percent of a humectant III; in the formula, the use amount of the functional substances is reduced, and the absorption rate of the functional substances is improved, so that the use amount of the functional substances can be reduced on the premise of achieving the same effect, the cost of the functional substances is reduced, adverse reactions caused by using a large amount of the functional substances can be reduced, and the functional substances can permeate into the skin more easily; and a better skin care effect is exerted.

The invention provides an SAR satellite structure suitable for multi-satellite launching and a design method, and relates to the technical field of spacecraft design, the SAR satellite structure comprises a satellite main body, a solar wing, a radiation unit, an antenna substrate, a plate penetrating connector, a TR assembly and a semi-rigid connection assembly, the SAR satellite structure adopts a trapezoidal cross section configuration, the internal space of a rocket fairing is fully utilized, and the space of the rocket fairing is fully utilized; a heat conduction unit and a heating unit are arranged between the radiation unit and the antenna substrate and between the antenna substrate and the TR assembly, so that the radiation array plane flatness of the radiation unit and the installation flatness of the TR assembly are ensured, heat conduction between single machines is increased, and the temperature consistency of the antenna is improved; the semi-rigid connection assembly can reduce the response of the active section antenna, release the thermal deformation of the antenna, reduce the flatness change, improve the precision of a radiation array plane, and solve the problems that the space utilization rate of an existing SAR satellite is low, the flatness of the antenna is easily affected by thermal deformation, and the temperature of the antenna is difficult to control.

The invention relates to the technical field of baby diapers, in particular to a diffusion node multi-stage arranged slotted absorption article which comprises a surface layer, a core body and a bottom layer which are sequentially compounded into a whole, the core body is at least composed of wrapping cloth and an absorption body wrapped by the wrapping cloth, the core body is provided with a flow guide groove in the length direction of the core body, and the flow guide groove is communicated with the bottom layer. A liquid storage diffusion groove is further formed in the position, close to the end of the flow guide groove or located at the end of the flow guide groove, of each flow guide groove in an expanded mode. According to the invention, the flow guide grooves with the liquid storage diffusion groove structures are formed, so that the absorption area of the core body in the middle area is increased, the absorption speed is increased, the flow guide grooves and the liquid storage diffusion grooves play a temporary buffering role when facing large flow, enough time is gained for liquid absorption of the core body, the absorption utilization rate of the core body is increased, and the service life of the core body is prolonged. The contact time and area of the skin and excrement of a user are reduced, and the user can feel dry and comfortable in the using process.

The invention relates to the technical field of traditional Chinese medicine composition production, in particular to a traditional Chinese medicine composition for rapidly relieving renal colic and a preparation method thereof. Comprising the following components in parts by weight: 10-30 parts of lysimachia christinae hance nanoparticles, 6-16 parts of rhizoma corydalis, 8-18 parts of radix paeoniae alba, 5-15 parts of endothelium corneum gigeriae galli, 8-18 parts of rhizoma alismatis, 5-10 parts of lygodium japonicum, 2-8 parts of beta-cyclodextrin, 0.5-1.5 parts of a poloxamer surfactant and 2-8 parts of sodium carboxymethyl cellulose. According to the invention, flavonoid glycoside in lysimachia christinae hance is extracted, glycosylated and emulsified into nano-particles, so that the absorption and utilization rate of flavonoid glycoside in a body are improved, and the drug effect of flavonoid glycoside is improved. Beta-cyclodextrin and sodium carboxymethyl cellulose are adopted as carriers, the release speed of the traditional Chinese medicine composition can be regulated and controlled, the release speed of components is slowed down to a certain degree, and the medicine can continuously play a role in the body.

The utility model particularly relates to the field of disinfection equipment, and discloses an automatic ultraviolet disinfection device for a delivery window, which comprises a box body and a notch I arranged in the box body, the inner side wall of the notch I is fixedly connected with a support plate for separating the notch I, the bottom end of the support plate is fixedly provided with a xenon light ultraviolet lamp tube I, and the xenon light ultraviolet lamp tube I is fixedly connected with the box body. And an air blower is fixedly connected to the surface position of the supporting plate, and a first pipeline is inserted into an air inlet in the side wall of the air blower. By arranging the supporting plate, the air blower, the air inlet cover and the filtering assembly, the air inlet cover is in a funnel shape and can enlarge the absorption area of one end of the pipeline, air in the first notch can be sucked into the filtering assembly by starting the air blower, and the filtering assembly comprises a filtering cylinder, a filtering layer and a steel wire net. Impurities can be filtered when passing through the filter layer, and clean air is discharged into the notch I from the hole groove II to realize air pressure balance, so that the impurities in the air in the notch I are reduced, and the air pollution of a clean room is avoided.

The present invention provides an integrated device of a flash tower and a capillary absorber and a working method thereof, comprising a desulfurization tower and a capillary absorber; the desulfurization tower is an inverted U-shaped structure, one side is a desulfurization flash side, and the other side is a solution absorption side; the capillary absorber is located in the solution absorption side, a concentrated solution inlet pipe is arranged above the capillary absorber, and the desulfurization tower is connected with a dilute solution outlet pipe and a vacuum pipe below the capillary absorber; the capillary absorber comprises a top capillary tube sheet and a bottom capillary tube sheet, the top capillary tube sheet and the bottom capillary tube sheet separate the inside of the solution absorption side, a plurality of capillaries are arranged between the top capillary tube sheet and the bottom capillary tube sheet, and the top and bottom ends of the capillaries are connected with the top capillary tube sheet and the bottom capillary tube sheet. The water in the desulfurization slurry after wet desulfurization in the thermal power system is evaporated, and the heat is carried and transported by water vapor in the form of latent heat, and the latent heat of water and water vapor is absorbed and recovered.

The utility model relates to the technical field of air purification, in particular to a medical clean operating room dust filtering device which comprises a bottom plate, a vertical plate is fixedly connected to the rear portion of the upper end face of the bottom plate, a filtering box is installed on the upper end face of the bottom plate, and a dust falling cavity is installed at the bottom end in the filtering box. A water collecting pipe is installed at the top end of the interior of the dust falling cavity, a plurality of atomizing nozzles are installed on the lower end face of the water collecting pipe, a suction fan communicating with the dust falling cavity is installed on the rear end face of the filter box, the upper end face of the suction fan communicates with a connecting hose, and the other end of the connecting hose communicates with an air inlet; air in the operating room is sucked in the moving process through the air inlet, so that the air can be sucked in the moving process, the air absorption area is increased, the air absorption efficiency is improved, water is sprayed through the multiple atomization nozzles, then dust fall can be conducted on the air, and the air in the operating room can be purified; and dust in the air is prevented from influencing the environment in the operating room.

The invention discloses a PFC inductor with a magnetic shielding structure, which specifically relates to the field of environmental protection equipment and resource recovery. The inductor comprises an inductor body, which comprises an I-shaped inductor and a fixing plate for fixing the inductor body, and a magnetic shielding cover, which comprises a magnetic shielding box and a magnetic shielding cover for sealing two ends of the magnetic shielding box. Two groups of isolation frame groups are arranged inside the magnetic shielding box, and the two groups of isolation frame groups are attached to the two ends of the I-shaped inductor. The isolation frame groups are attached to the two ends of the I-shaped inductor and support the magnetic shielding cover to form a heat insulation layer between the magnetic shielding cover and the outer wall of the I-shaped inductor. The heat insulation layer and the heat dissipation layer are staggered to facilitate the dissipation of heat. At the same time, a shielding plate group, a heat conducting plate group and a blocking plug plate with complex structures are arranged to increase the contact area and the dissipation area of ​​the heat, effectively reduce the operating temperature of the I-shaped inductor, and improve its service life.

The utility model provides a liquid sanitary napkin, which belongs to the technical field of sanitary napkins and comprises a bottom film, a core body and a surface layer, and the edge of the surface layer is adhered to the edge of the bottom film. The core body is positioned in a cavity between the bottom film and the surface layer; the core body comprises a flow guide layer, a liquid material layer and a liquid absorption layer which are sequentially arranged from top to bottom, and a plurality of flow guide holes are formed in the liquid material layer at intervals in the length direction; and the liquid absorption layer covers all the flow guide holes. According to the liquid sanitary towel, the flow guide holes are formed in the liquid material layer, so that the flow guide area and the absorption area of the liquid material layer are increased, and the absorption speed is increased; the liquid absorption layer is additionally arranged at the bottom of the flow guide hole, so that liquid in the flow guide hole can be rapidly absorbed by the liquid material layer and the liquid absorption layer, the liquid storage effect is improved, and reverse osmosis of the core body is reduced; the flow guide layer is additionally arranged at the upper end of the liquid material layer, so that the flow guide effect is improved, the permeation area is increased, and reverse osmosis is reduced.

This invention discloses an intermittent connection process between a suspended core and the diaper body. This process relates to the field of absorbent products and comprises the following steps: a) intermittent adhesive spraying, b) adhesive scraping, and c) core bonding. The absorbent core is bonded to the bottom film of the absorbent product through adhesive segments in regions one, two, and three, thereby creating an intermittent connection between the absorbent core and the body. This results in grooves that facilitate urine drainage and cavities that store urine at the bottom of the diaper body. This not only increases the absorption rate of the absorbent core but also increases its absorption area, providing excellent fixation for the absorbent core. The process has fewer steps and is simple to operate, meeting the production needs of large-volume diaper production.

The utility model belongs to the technical field of pressing equipment, especially relates to ash base lightweight aggregate forming and pressing equipment, including pedestal, the upper surface fixed mounting of pedestal has the stand, one end of stand fixed mounting has the mounting panel, the fixed mounting of mounting panel has the hydraulic cylinder, one end of hydraulic cylinder is connected in the mounting panel, one end of hydraulic cylinder fixed mounting has the pressing plate, has been set up in the pressing plate the sliding slot, the stand sliding installation is in the sliding slot, the lower surface swing mounting of pressing plate has the upper die, the fixed mounting of base plate has the base plate, the movable mounting of base plate has ash base lightweight aggregate forming and shaping frame, the fixed mounting of base seat wall has the fixed plate, the fixed plate sliding installation has the fixed base. The utility model has the advantage that the dust that the air intake pipe can suck through the hose is transported to the conveyer belt, is transported to the ash base lightweight aggregate forming and shaping frame in through the conveyer belt, to reach the purpose of recycling.

The invention belongs to the technical field of organic fertilizers, and particularly relates to a compound fertilizer for promoting flower growth and a preparation method thereof. The compound fertilizer for promoting flower growth comprises the following components: an organic matter, a nitrogen fertilizer, a phosphate fertilizer, a synergist and an anti-caking agent, the overall caking rate is low, after the compound fertilizer is compounded with an organic fertilizer, fertilization is performed in the flower growth period, sufficient nitrogen supply promotes functional leaf extension and chlorophyll synthesis, the photosynthetic efficiency is improved, and a continuous assimilation substance source is provided for underground rhizomes and overground branches. The plant is more robust, and the commodity character is obviously improved.

The disposable cotton swab comprises a cotton strip and a plastic tube body, the cotton strip is located in the tube body and extends out of the bottom end of the tube body, the top end of the cotton strip is fixedly connected with a traction line, the traction line is provided with a traction assembly used for moving the traction line, and the traction assembly is fixedly connected with the tube body. The traction assembly comprises a ball body arranged in the tube body, a through opening is formed in the ball body, a tough guide wire is fixedly connected to the ball body, the guide wire penetrates out of the top end of the tube body, and the traction wire penetrates out of the through opening and leads to the outside of the top end of the tube body. The anesthetic injector is simple in structure, the lower end of the tube body is arranged below a nasolacrimal duct, the ball body is pushed through the guide wire to enable the cotton strip to fill a nasal meatus, the guide wire and the ball body are pulled out, anesthetic can be injected from the tube body, secondary replacement of cotton swabs is avoided, and discomfort of a patient is relieved.

The invention discloses a photovoltaic energy storage charging pile and a method for using the same, and relates to the technical field of charging piles. The technical scheme is as follows: the pile body comprises a partition fixedly provided on the top of the pile body, two side plates fixedly provided on the top of the partition, protective shells fixedly provided on the top of the two side plates, a fixing frame fixedly provided on the top of the partition, a connecting shell fixedly provided on the top of the fixing frame, the connecting shell fixedly provided on the bottom of the protective shell, and a retractable mechanism inside the protective shell; the retractable mechanism comprises a first motor, the first motor is fixedly provided inside the fixing frame, a screw rod is fixedly connected to the output end of the first motor, the screw rod passes through the connecting shell and is connected to the connecting shell through a bearing, a moving block is provided on the outside of the screw rod through a threaded sleeve, and retractable components are provided on both sides of the moving block. The invention has the following beneficial effects: an integrated design of photovoltaic panels and charging piles is realized, floor space is saved, loss of long-distance power transmission is reduced, energy utilization efficiency is improved, light energy absorption area is increased, and photovoltaic energy storage efficiency is thereby improved.

The invention discloses a carbon dioxide absorption device for an anaesthesia machine, and relates to the technical field of medical instruments. The device comprises an absorber tank body, an alkaline solution box, a driving motor, a water pump, a spraying pipe, a spraying head, filtering cotton, an air inlet, an air outlet, a water vapor collecting tank, a cooling device, a temperature sensor, a control module, a water discharging opening, an alkaline solution box cover, an alkaline solution adding opening, an alkaline solution discharging opening, a pH value sensor, an alarm device, a cooling fan, a displayer, a dehumidifying device and a power source. The problem that the absorbent is not easy to judge after failure in the prior art is solved.

The invention relates to the technical field of Cinnamomum camphora transplanting, and particularly discloses a Cinnamomum camphora summer transplanting method combining staged root cutting and lump shrinkage with microbial agent synergy. The cinnamomum camphora summer transplanting method combining staged root cutting and lump shrinking with synergism of a microbial agent comprises the following steps: S1, staged root cutting and lump shrinking pretreatment: in the first stage, digging an annular groove around a trunk and cutting off side roots, in the second stage, digging a second annular groove around the trunk and cutting off residual side roots after 10-15 days, and in the third stage, after 10-15 days, cutting off residual side roots after 10-15 days, cutting off residual side roots after 10-15 days; carrying out final root cutting to form shrunk soil balls; s2, preparing a microbial agent; s3, microbial inoculum synergistic application; s4, transplanting operation in summer. The transplanting method can be used for cinnamomum camphora transplanting projects such as urban landscaping and road greening which need to be carried out under the high-temperature stress in summer, and has the advantages of relieving summer transplanting physiological stress, improving the survival rate, promoting rapid recovery of tree vigor after transplanting and being stable in effect.

The invention relates to the technical field of crop cultivation, in particular to a corn seed coating agent and a preparation method and application thereof.The corn seed coating agent is prepared from, by mass, 0.01%-0.13% of red indazim canola, 0.01%-0.1% of nitrogen element, 0.06%-0.08% of phosphorus element, 0.15%-0.30% of potassium element, 0.04%-0.06% of organic carbon, 0.01%-0.03% of polypeptide, 2.8%-3.2% of difenoconazole and the balance water. The composition is prepared from the following raw materials in percentage by weight: 1.3-1.7% of carbofuran, 0.4-0.6% of a film-forming agent and the balance of water. After the corn seed coating agent provided by the invention is applied to corn seeds, the corn seeds are neat in seedling emergence, high in seedling vigor, vigorous in corn plant growth vigor, dense in corn root system and good in root hair development, the morbidity of corn stalk rot and corn ear rot is reduced, and the quality of the low-activity corn seeds is improved.

The invention discloses anti-corrosion treatment equipment for fan machining, and relates to the technical field of anti-corrosion equipment treatment.The anti-corrosion treatment equipment comprises a supporting table, a fixing mechanism is slidably connected to the top of the supporting table, a spraying mechanism is fixedly connected to the top of the fixing mechanism, and an absorbing mechanism is fixedly connected to the top of the spraying mechanism; firstly, a worker places a fan on a supporting table, a manual disc is manually rotated, a first lead screw can be driven to rotate, a moving frame can be driven to slide in a moving groove along the surface of a limiting rod through the rotating effect of the first lead screw, and a clamping frame is driven to fix the fan; and after the fan is fixed, a motor is started to drive a second lead screw to rotate, a moving block can be driven to slide back and forth along the surface of the second lead screw, and a material storage box and a spraying box can be driven to move.

An anti-overflow sanitary napkin for a male indwelling catheter comprises a sanitary napkin body which is used for being connected to the root of a penis in a sleeving mode, wrapping the whole penis and allowing the indwelling catheter to stretch out from the side face, and meanwhile the sanitary napkin body is arranged to be a structural body which is gradually expanded from the root of the penis to the front end of the penis and is provided with the closed front end. According to the sanitary napkin, the sanitary napkin body is arranged to be the hollow structural body which is gradually expanded from the root of the penis to the front end of the penis, such as a calabash-shaped structural body or a water drop-shaped structural body, so that the sanitary napkin part positioned at the front end of the penis has a larger absorption area, and the liquid storage capacity of the sanitary napkin is effectively improved; the sanitary napkin can absorb more urine, so that the spill-proof effect is better, frequent replacement is not needed, the use cost is effectively saved, and the nursing workload is reduced. The catheter fixing device is simple in structure, easy to manufacture, convenient and reliable to use, wide in application range and suitable for being used by a patient with an indwelling catheter and also suitable for being used by a patient without an indwelling catheter.

The soundproof window comprises a window frame and the double-layer soundproof glass arranged in the window frame, the double-layer soundproof glass is composed of inner-layer glass, outer-layer glass and a middle soundproof layer, and the soundproof layer comprises PC plates arranged on the two sides and an FRP soundproof material layer arranged between the PC plates on the two sides. A plurality of mounting holes are uniformly formed in the outer-layer glass, a silencing cover is fixedly mounted on the mounting holes, at least one annular silencing film is fixedly mounted in the silencing cover, and a plurality of grooves are formed in the inner wall of the silencing cover. According to the sound insulation window, the sound insulation layer is arranged, the sound insulation layer is combined with the PC board and the FRP sound insulation material layer, an efficient sound insulation structure is formed, the sound attenuation capacity of the sound insulation window is further enhanced through the design of the sound attenuation cover on the outer layer glass and the annular sound attenuation film in the sound attenuation cover, and noise propagation is effectively absorbed and reduced; the grooves formed in the inner wall of the silencing cover increase the scattering and absorbing area of sound waves in the silencing cover, and the silencing effect is improved.

The invention provides an earthworm protein extract as well as an extraction method and application thereof. The earthworm protein extract can be applied to agricultural production. The extraction method comprises the following steps: preparing cleaned earthworms into earthworm homogenate; adding water into the earthworm homogenate, and carrying out solid-liquid separation to obtain an extracting solution containing earthworm protein; then protease is added for enzymolysis; and performing purification treatment on the extracting solution after enzymolysis to obtain the earthworm protein extract. The extraction method of the earthworm protein extract is simple, extraction parameters are controllable, and the extracted earthworm protein is high in extraction rate and purity. The earthworm protein extract is rich in eighteen amino acids, various nucleotides, FA proteins and other components, can provide essential raw materials for plant metabolism, is beneficial to plant tissues to coordinate cell division and differentiation activities, can effectively improve the yield, quality and resistance of crops, and has the effects of improving the soil structure, improving the soil fertility and the like.

The utility model provides a boiler membrane type water cooling wall containing bent flat steel, which is characterized in that the boiler membrane type water cooling wall is formed by alternately welding the bent flat steel and steel pipes, the bent flat steel comprises a left wing and a right wing, an included angle is arranged between the left wing and the right wing, and the left wing and the right wing have elasticity due to the included angle. When the bent flat steel is heated to expand, the left wing and the right wing are stretched towards the two sides, the angle of the included angle is increased, and then stretching stress generated during expansion is absorbed; when the bent flat steel is cooled and contracted, the left wing and the right wing are extruded towards the inner side, the angle of the included angle is reduced, then extrusion stress generated during contraction is absorbed, and the left wing and the right wing are integrally formed. Elastic compensation is added to existing plane flat steel, the problem that a boiler is damaged due to deformation of the membrane type water cooling wall is solved to a certain degree, the absorption area is increased, and the heat rate is increased.

The present invention belongs to the technical field of semiconductors, and discloses a novel multi-layer infrared detector, including a pixel set arranged in a multi-layer array on a substrate with a readout circuit, each pixel including a micro-bridge resonant cavity structure including a micro-bridge deck, a beam structure, a support and an electrical connection hole, and the corresponding high-level pixels and low-level pixels in the pixel sets of two adjacent layers are arranged staggered with each other, and the projection surface of the micro-bridge deck in the high-level pixel overlaps with the projection surface of the beam structure, the support and the electrical connection hole in the low-level pixel, and the gap between adjacent pixels. The multi-layer infrared detector of the present invention uses the staggered arrangement to make the micro-bridge deck in the high-level pixel cover the beam structure, the support and the electrical connection hole of the micro-bridge in the low-level pixel, and the gap between adjacent pixels, thereby increasing the absorption area of ​​infrared rays, improving the infrared absorption efficiency, and improving the product performance under the premise of controllable costs.