43results about How to "Relaxed conditions of use" patented technology

The invention belongs to the technical field of microscopy imaging, and discloses an integrated portable confocal opto-acoustic microscopy imaging device and a method. The imaging device comprises an opto-acoustic excitation light source, an acousto-optical confocal opto-acoustic detector, a photodiode, a miniature X-Y two-dimensional galvanometer, a spectroscope, a lens, a sample table, a double-channel parallel acquisition card and a computer with acquisition control software and two-dimensional galvanometer control software. The method includes steps that after the direction of laser light emitted from the opto-acoustic excitation light source is changed via the miniature X-Y two-dimensional galvanometer, the laser light is focused by the balsaming lens and irradiates on samples to excite opto-acoustic signals, the opto-acoustic signals are received by the acousto-optical confocal opto-acoustic detector, the incident angle of a light beam is continuously changed by the two-dimensional galvanometer so that the samples are scanned, and finally, an opto-acoustic image is rebuilt by maximum projection algorithm. A micro-chip laser device and the miniature X-Y two-dimensional galvanometer are integrated to form the portable confocal opto-acoustic microscopy imaging device, mobility is good, imaging speed is fast, and resolution ratio and contrast ratio are high.

The invention provides a static human body heartbeat and respiration signal separation and reconstruction method based on OMP. The method comprises the steps of firstly, acquiring distance informationof a human body target through analysis and calculation according to actual human body target detection data, and constructing a distance time graph; then performing direct current offset correctionon the I/Q signals, and calculating phase information through an arc tangent function; performing phase unwrapping on the detected to-be-detected human body target based on an extended DACM algorithmof derivation operation, solving the problem of phase ambiguity, and performing phase difference to enhance heartbeat signals; and using two two-stage cascaded four-order IIR band-pass filters for separating heartbeat signals from breathing signals, and finally completing separation and reconstruction of the breathing signals and the heartbeat signals through a compressed sensing theory and an OMPalgorithm. The invention innovatively provides the static human body heartbeat and respiratory signal separation and reconstruction method based on orthogonal matching pursuit, the influence of harmonic waves and noise on heart rate and respiratory rate estimation is effectively reduced, and the accuracy of final heartbeat and respiratory rate estimation is greatly improved.

An accurate displacement measurement device with real scales comprises a main scale (101), an auxiliary scale (201), a light source (301), a light path (401) and a signal processing circuit (203). The scales are encoded by using patter characteristics so as to avoid delta encoding and problems caused by the delta encoding. The accurate displacement measurement device particularly relates to a scale reading method which is used for substituting displacement measurement devices with grids of gratings, magnetic grids and the like as characteristics. An electronic scale produced by the device has real scales, thereby being capable of completely substituting traditional electronic scales.

The invention provides a preparation method of a novel ceramic membrane with adsorption and interception functions. Combining modern adsorption technology and membrane technology, attapulgite is used to prepare a new type of ceramic membrane. Mix the attapulgite and deionized water evenly until it becomes a paste, pour it into a mold and press it into a circular ceramic sheet. It is first aged in a constant humidity environment for 3-7 days, taken out and dried in the natural environment of the laboratory for 2-5 days, sent to a muffle furnace for calcination, and after cooling, the surface is smoothed with sandpaper. configuration. The ceramic sheet is immersed in a sulfuric acid solution with a pH value of 2 to 6 for 8 to 24 hours, taken out, washed, soaked in deionized water for 8 to 24 hours, and dried under a dust-removing environment to form a ceramic film. The pore diameter of the ceramic membrane is 10-70nm, and it has adsorption performance and interception function at the same time. In addition to adsorption and retention of organic macromolecules, it also has good adsorption effect on small molecular organic substances and metal ions, and has the value of industrial promotion.

The invention provides a temperature error compensation method based on AI face distance detection, which belongs to the technical field of computer vision. The temperature error compensation method comprises the following steps of: step 1, preparing environment configuration; step 2, establishing a position corresponding relation; step 3, carrying out face detection in a visual image; step 4, calculating a face temperature; step 5, collecting data; 6, training a model and calculating a face distance; and step 7, perfecting a temperature compensation algorithm.

The invention discloses an efficient chemical oxidation repairing method for organic polluted soil. The efficient chemical oxidation repairing method for the organic polluted soil comprises the following steps: mixing the organic polluted soil and water to prepare a slurry-state soil mixed solution; adding a binary compound organism-nonionic surfactant into the slurry-state soil mixed solution andthen adding an oxidizing agent; and performing oscillation in an oscillator and degrading the organic pollutant in the soil after oscillation treatment, wherein the oxidizing agent is SPC and the binary compound organism-nonionic surfactant is GLDA and Tween80. The efficient chemical oxidation repairing method for the organic polluted soil has the advantages of simple process condition, low operation requirement, high treatment efficiency and the like, and is suitable for repairing various kinds of organic polluted soil.

The invention relates to a steel wire drawing and centering device for steam turbine assembly. The device has simple structure, is convenient to use and can adjust the steel wire more accurately. The device in the invention comprises a steel wire drawing frame, wherein the steel wire drawing frame is arranged on a support through a steel wire frame supporting plate and comprises a bottom plate; the bottom plate is provided with an adjusting device; a steel wire fixing frame is connected with the adjusting device; and the steel wire fixing frame is provided with a steel wire pulling block.

The invention relates to a synergistic natural gas; each cubic meter of natural gas contains 6 to 10ml of synergistic additive; and the synergistic additive is mixed from potassium permanganate, nitromethane, hydrogen peroxide, sodium bicarbonate and solvent water. Every 1000 mass parts of water is mixed with 3 to 5 parts of potassium permanganate, 3 to 5 parts of nitromethane, 3 to 5 parts of hydrogen peroxide and 2 to 3 parts of sodium bicarbonate. The mixed gas provided by the invention has high heat under the same pressure condition, improves the heat efficiency to reach above 3000DEG C, realizes low loss of the same heat, and can realize low-cost use; and the high burning temperature realizes very significant advantages in industrial application (e.g. metal cutting, punching and the like); because the gas can be lit only by naked fire, the user conditions are relaxed and the use is safer; and the product can reduce the emission of waste gas, has better emission reduction effect, and realizes the purposes of cleanliness and environment protection.

The invention discloses an instrumental magnitude conversion method for a star sensor based on an infinite-dimension space. The method comprises the following steps: 1) using an infinite-dimensional vector in the infinite-dimensional space to describe a star spectral illuminance function and a band spectral response function; 2) obtaining the functional relation between the infinite-dimensional vector and the magnitude of each band through modeling analysis; 3) selecting the optimal band combination according to the band selection rule and establishing the corresponding redundant equations; 4) and solving the redundant equations by using the optimization algorithm with limited step size and direction and finally obtaining the instrument magnitude. The redundant equations of the multi-band magnitude data are solved to calculate the instrument magnitude so as to effectively reduce conversion error and improve conversion accuracy. As for the band selection rule, the optimal data source band combination can be automatically selected for different instrument bands so as to have good universality to a certain extent and be popularized for the conversion of other instrument stars of different bands.

The invention discloses a multi-level double-pore structure composite photocatalyst, preparation and application thereof. The composite photocatalyst consists of a tree-shaped mesoporous SiO2 template, TiO2, Au nanoparticles and a mesoporous SiO2 shell layer. The invention overcomes the defect that conventional TiO2 catalyst can only degrade organic dye molecules in an ultraviolet waveband, effectively broadens the use conditions of TiO2 photocatalyst, and also utilizes the metal-semiconductor synergistic effect to inhibit photoelectron-hole recombination so as to improve the catalytic efficiency; the photocatalyst has a multi-level double-pore structure, greatly improves the openness of a catalytic site while enhancing the loading capacity of a functional element, facilitates the interaction of the photocatalyst and substrate molecules so as to improve the photocatalytic efficiency, meanwhile, the structure can improve the stability of the catalyst, and the catalyst can be repeatedlyand efficiently used, thus avoiding the waste of product.

The invention provides a checking method based on vibration positioning GIS partial discharge equipment. The method is characterized in that a device is composed of following component of (1) a cylindrical cavity used for experiment and provided with a fixing hole, (2) a standard vibration signal generator, and (3) a to-be-checked detection device based on the vibration positioning GIS partial discharge equipment. The used method comprises the steps of firstly, using a generating method for converting coordinates of the cylindrical cavity into plane coordinates, marking points A of the coordinates like the attached map 1, secondly, utilizing the to-be-measured partial discharge positioning equipment for solving partial discharge coordinates, thirdly, repeatedly executing the step two, fourthly, solving mean values A' of the solved multiple sets of coordinates, comparing the mean values A' with the points A of the coordinates, and performing checking and debugging until the testing range is within a circle with the points A as the circle center and the radius of 10 cm. According to the method, the checking speed is high, a large amount of manpower and a large number of material resources can be saved, and the method plays an obvious role in checking of a production enterprise in the GIS partial discharge equipment.

The invention relates to a bearing fault detection device. The device comprises a workbench, a direct-current gear motor device, a bearing seat, a laser self-mixing interference device, a data collection and analysis device and a computer, wherein the direct-current gear motor device, the bearing seat and the laser self-mixing interference device are all arranged on the workbench, a to-be-detectedbearing is installed on the bearing seat, the direct-current gear motor device is connected with the bearing, the laser self-mixing interference device is arranged on the side face of the bearing seat and is connected with the data collection and analysis device, and the data collection and analysis device is connected with the computer. The bearing fault detection device has the advantages of being capable of performing non-contact measurement, easy to operate, high in interference resistance, high in sensitivity, high in measurement precision, loose in application condition, low in cost andthe like.

The invention discloses a method for recycling viscose fiber acidic wastewater by using a two-stage special membrane, belonging to the technical field of recycling of acidic wastewater. The method ischaracterized by comprising the steps of treating raw water of viscose fiber acidic wastewater by using a pretreatment system; treating the water produced by pretreatment by means of a first stage special reverse osmosis membrane system so as to intercept part of sulfate radicals in the water, and improving the pH value of the water produced by the first stage special reverse osmosis membrane system at the same time; adjusting the pH value of the water produced by the first stage special reverse osmosis membrane system to 7-8.5, and then treating the water by using a secondary common reverse osmosis membrane system; enabling the water produced by the secondary common reverse osmosis membrane system to reach the desalination standard, and directly sending the water to a process workshop forrecycling. The method provided by the invention effectively solves the problem of water resource waste caused by the direct sewage treatment up-to-standard discharge in the prior art, reduces the sewage treatment and discharge costs; furthermore, the method also solves the problem that in the prior art, the pH of the acidic wastewater is adjusted to be neutral by using caustic soda directly, so that a large amount of alkali liquid is consumed, and the recycling cost is accordingly too high.

The invention belongs to the technical field of high-temperature silo design, and specifically relates to a high-temperature silo expansion joint, which includes: an inner elastic component, a connecting body and an outer elastic sheet, wherein the inner elastic assembly includes: a connecting support plate and an inner elastic sheet, Both ends of the connecting support plate are respectively connected to the upper and lower walls of the high-temperature silo, a supporting opening is provided in the middle of the connecting supporting plate, and the supporting opening extends horizontally to the Inside the high-temperature silo, the inner elastic sheet is arranged in the support opening; one end of the connecting body is connected to the connecting support plate and communicates with the support opening, and the other end is provided with the outer elastic sheet . The present invention releases the stress generated by the deformation of the high-temperature silo through the inner elastic sheet and the outer elastic sheet arranged inside and outside the silo, improves the thermal expansion and contraction resistance and the overall stability of the high-temperature silo, thereby improving the high-temperature The service life of the silo.

The invention discloses a real-time river bank collapse monitoring device based on a pressure sensing technology. The monitoring device comprises a pressure sensing module, a central processing module, a data transmission module and a power supply module; The pressure sensing module comprises horizontal and/or inclined line type pressure induction modules for measuring the collapse depth, the central processing module can convert a pressure value transmitted by the pressure sensing module into collapse width data of water front via a preset algorithm and store the data, and the data transmission module transmits riverbank collapse distance information to a remote terminal. Density difference among the soil, water and air as well as the pressure sensing technology is used to establish relation between the water front collapse width and data of pressure measurement points, vertical to the river, buried in the riverbank, the data of the pressure measurement points is converted into the water front collapse width data which is stored in real time and sent to the remote terminal, and collapse bank is monitored in an intelligent and informational way.

A flue gas atomization evaporation process for high-salt wastewater based on ash waste-heat recovery comprises the following specific steps: the high-salt wastewater is treated by a deep filtration device; out-going water of the deep filtration device 1 is further treated by a pH adjusting device; out-going water of the pH adjusting device is softened by a softening device; out-going water of thesoftening device is introduced into the front section of an air-cooling mechanical slag removal device and a return type heating tube located at the bottom of a boiler through a waste-water conveyingpump, and is preheated by ash waste heat; and a spray nozzle sprays the preheated high-salt wastewater onto a horizontal flue between an air preheater and a dust catcher for flue-gas atomization evaporation. According to the invention, maximum preheating is carried out on the high-salt wastewater by recycling the ash waste heat and the characteristics of the return type heating tube, thereby not only greatly relaxing the use conditions of the flue gas atomization evaporation treatment technology, but also avoiding waste of high-level heat energy and improving the heat utilization efficiency ofpower plants.

Production of triphenyl tin tetrachloride is carried out by reacting tin with chlorine gas to obtain tin tetrachloride, lattice vector reacting magnesium with chlorobenzene in furanidine solvent, taking alkyl halide as initiating agent to obtain phenyl-magnesium-chloride, displacement reacting phenyl-magnesium-chloride with tin tetrachloride in methylbenzene solvent to obtain tin tetraphenyl, and disproportionation reacting tin tetraphenyl with tin tetrachloride to obtain the final product. It is cheap, has more yield, better safety coefficient and circulation usage.

The invention relates to mixed dimethyl ether gas which comprises dimethyl ether. 250-280 milliliters of additive solutions are added to one cubic meter of the mixed dimethyl ether gas; the additive solutions are prepared by mixing a first solution and a second solution; the first solution is prepared by mixing the following materials in parts by weight: 3-5 parts of potassium permanganate, 4-6 parts of aluminium trichloride, 2-3 parts of sodium hydroxide, 3-5 parts of petroleum ether and 1 part of ferrocene with pure water; the second solution is prepared by mixing 1.5-2.0 ml of hydrogen peroxide and 2-3 ml of acetone with the pure water. The mixed dimethyl ether gas provided by the invention can be used for enhancing the heat value of dimethyl ether under the condition of same pressure by adding the additive solutions, is less in heat consumption, can be used for realizing the low-cost usage, is widened in using condition and safer because the mixed dimethyl ether gas can be ignited by using a naked flame, and can be used for reducing the discharge of waste gas, enhancing the emission reduction effect and realizing the purposes of cleanness and environmental friendliness.

The invention relates to the technical field of oilfield fracturing fluid additives, and discloses a phase permeability modifier for oilfield fracturing and a preparation method thereof. The phase permeability modifier for oilfield fracturing is prepared from the following raw materials: an emulsifying agent, diesel oil, an initiator, a polymeric monomer and water. A reservoir or middle and high water cut oilfields with complicated oil-water relationships can realize the effects of reducing the oil well water yield, improving the oil pump capacity and achieving water control and oil increase, so that the productivity of oil is improved; the phase permeability modifier is a long-chain high-molecular polymer, can effectively increase the water-phase permeability, is little in influence on oil-phase permeability, and has high selectivity water control performance; besides, the phase permeability modifier has high back-displacement performance and relatively high adsorption capacity; compared with the prior art, the drag reduction phase permeability modification performance is more excellent, and the oil well yield can be increased by more than 10%; and moreover, the phase permeability modifier is simple in production and loose in using condition, so that the phase permeability modifier can be widely applied to fracturing production increasing technique of oil-water layer reservoir phase permeability fracturing.