290results about How to "Good filtering effect" patented technology

The invention discloses a hybrid noise filtering method for removing Gaussian noises and impulsive noises. The method comprises: for hybrid noises of Gaussian noise and impulsive noises in a pantograph image, the impulsive noises are suppressed by an advanced boundary discriminative noise detection (ABDND) algorithm including noise pixel detection, noise pixel verification and noise pixel filtering; for the image after suppression on the impulsive noises, pixel points are processed by using a sliding window, all points in the window are ranked based on gray values, maximum-value and minimum-value points are removed, weight distribution is carried out on the rest pixel points and weighted calculation is carried out, wherein a calculation result is used as an output gray value of the central point of the filtered window to replace the original gray value of the point; and the two kinds of algorithms are repeated to carry out progressive filtering, thereby filtering the hybrid noises in the pantograph image. The method having advantages of simple principle and good filter effect has the great significance in digital image processing.

The invention discloses a filtering tank capable of being easily cleaned and replacing filtering materials. The filtering tank comprises a tank body, as well as a water inlet pipe and a water outlet pipe which are communicated with the inner part of the tank body, wherein the tank body is composed of an upper tank body and a lower tank body which are detachably connected; a sealing part is arranged on the connection part of the upper tank body and the lower tank body; the water inlet pipe is located on the lower part of the lower tank body and the water outlet pipe is located on the upper part of the upper tank body; the lower tank body is internally provided with a filler layer and a filtering net in sequence from top to bottom; the filtering net is located above the water inlet pipe; a dreg discharging opening is formed in the bottom of the tank body; valves are arranged on the water inlet pipe, the water outlet pipe and the dreg discharging opening. According to the filtering tank capable of being easily cleaned and replacing the filtering materials, liquid enters the tank body from the water inlet pipe and sequentially passes through the filtering net and the filler layer to be discharged from the water outlet pipe; the liquid is doubly filtered through the filtering net and the filler layer and the filtering effect is good; the tank body is composed of the upper tank body and the lower tank body which are detachably connected and the inner part of the tank body is convenient to detach and clean; the filler layer is also convenient to replace.

A double tuned filter based on a controlled reactor is composed of capacitor C1, controlled reactor L1, capacitor C2, reactor L2, a double tuned filter and a controlled reactor control circuit, among which, the parallel branches of capacitor C1, controlled reactor L1, reactor Lo, capacitor C2 and rector L2 are orderly serial, the double tuned filter is parallel to the system side. This invention alters the output reacting value of the reactor by altering the DC control voltage of the controlled reactor, therefore, the filter parameter can be changed according to the variance of the system parameter to enable the filter to resonate continuously and keep a good filter result.

The present invention relates to a double-direction two-stage composite filter mechanism, belonging to the field of environment-protecting technology. Said invention includes bottom plate, two two-position three-way electromagnetic valves, two groups of two-stage composite filters, pressure difference sensor and control unit. Said invention adopts unique two-stage composite filter integrated optimized design to make filtering accuracy of two filtering elements obtain optimum matching and obvious filtering effect, and can prolong the service life of said filtering element. At the same time, said invention adopts PLC to receive the signal of pressure difference sensor to automatically control two-position three-way electromagnetic valves so as to implement that when one worked one-way two-stage composite filter is blocked, another one-way two-stage composite filter can be used so as to raise the stability of system.

The invention discloses a filtering module inhibiting common mode noise and differential mode noise, comprising a first-level filtering module and a second-level filtering module. On the input end ofa common mode inductance (T1), which is near the power supply, a parallel branch composed of a disparaging resistance (R1) and a differential mode inductance (Cx) is connected between an anode and a cathode, and the other end is grounded by Y capacitance (Cy1) and capacitance (Cy2); and one end of a filtering inductance (T2) is connected with the output end of a direct-current power supply, and the other end is connected with a positive wire and a negative wire of the first-level filtering module. The above filtering module adopts the form of two-pole filtering circuit to increase the width ofthe effective filtering frequency band, lower volume and lower cost, filtering effect is favourable and the invention has the function of bidirectional filtering.

AU-shaped slot type artificial surface plasmonband elimination filter belongs to a multiband band elimination filter. The band elimination filter comprises a flexible dielectric substrate, a periodic metal optical grating, a U-shaped slot, a coplanar waveguide and a coupled structure, wherein the periodic metal optical grating is printed on the flexible dielectric substrate; the periodic metal optical grating is connected with the coupled structure and the coplanar waveguide; the periodic metal optical grating is combined with the U-shaped slot; the U-shaped slot represents that a metal film is not printed. The U-shaped slot type artificial surface plasmonband elimination filter has the advantages that 1, the periodicity of the U-shaped slot is selected as 1,2 and 3, band elimination filtering of one-wave band, two-wave band and three-wave band of a microwave band can be realized; 2, the structure is simple, the manufacturing is convenient, and the periodic metal optical grating structure has strong constraint on an electromagnetic field; 3, the structure of combining the periodic metal optical grating with the U-shaped slot is smaller in size and flexible, and can be applied to a microwave integration circuit with a compact size and a special function; 4, the metal optical grating structure can be applied to microwave, millimeter wave and terahertz frequency band through changing the basic parameters.

The sprayer includes one spray gun and one paint tank. The spray gun includes an sucking pipe, one gas filling pipe and one nozzle connected to the paint tank. The paint tank includes one tank and one filtering net, which is set inside the tank to separate the inside into two, one upper and one lower, parts. The tank is communicated with atmosphere, and the lower part is communicated with the sucking pipe and the gas filling pipe through pipeline with valves for controlling the opening and closing of the sucking pipe and the gas filling pipe separately. The sprayer has high filtering speed, high filtering effect and high spraying effect.

The invention relates to a horizontal indoor air purifier for photocatalytic oxidation, comprising a shell with a rectangular section; the shell is internally divided into a pressure-balancing chamber, a photocatalytic reaction chamber and an adsorption chamber in turn; wherein, the front of the pressure-balancing chamber is provided with an air inlet arranged at the front end of the shell and the back thereof is provided with a filter layer with the functions of pressure balancing and filtering; the photocatalytic reaction chamber is internally provided with a photocatalytic UV lamp; the front and/or back of the photocatalytic UV lamp is provided with a plurality of layers of photocatalyst filter screens; the adsorption chamber is internally provided with an adsorption layer; an air outlet is arranged on the top of the shell; the multi-level filter layer is formed by multi-layer tough and fine filter cloths; the photocatalyst filter screens are coated with nano-sized titania photocatalysts; activated carbon fiber bulks are preferably chosen as adsorbing materials. The air purifier features simple structure and convenient adaptation, very high purifying rate of volatile organic gas and is mainly applicable to indoor air pollution control.

The invention discloses a cutting fluid filtering device for a numerically-controlled machine tool. The cutting fluid filtering device for the numerically-controlled machine tool comprises an installing frame. The top of the left side of the inner wall of the installing frame is fixedly connected with a waste liquid box. The top of the waste liquid box is fixedly connected with a stirring motor. Through mutual cooperation of the waste liquid box, the stirring motor, a stirring shaft, a stirring part, a waste liquid pump, a waste liquid sucking pipe, a waste liquid outlet pipe, a filtering head, a filtering box, a filter, a filtering layer, an adsorption motor, an adsorption shaft, an adsorption part, a spraying box, an adsorption layer and a spraying pump, the filtering effect of the cutting fluid filtering device for the numerically-controlled machine tool is better, scrap iron and scum mixed in cutting fluid in the workpiece machining process of the numerically-controlled machine tool can be filtered and separated in time, impurity residues in the cutting fluid are effectively filtered out, and the phenomenon of deterioration of the cutting fluid caused by accumulation of too many impurities is prevented. Therefore, the secondary use performance of the cutting fluid is improved, and a workpiece and a tool are protected.

The invention discloses an optical filter. The optical filter comprises a first lens, a second lens, a parallel detection assembly and an actuator. The first lens and the second lens are oppositely arranged in a separated mode, and the two opposite surfaces of the first lens and the second lens are both provided with highly reflective coating layers. The parallel detection assembly is used for detecting whether or not the two highly reflective coating layers are parallel. The actuator is used for driving the first lens to move oppositely to the second lens to change the size of the gap between the first lens and the second lens, and further used for driving the first lens or the second lens to move in order to make the two highly reflective coating layers parallel to each other when the highly reflective coating layers are not parallel. The invention further discloses a lens module and an imaging module. According to the optical filter, the camera lens module and the imaging module, when the parallel detection assembly detects that the two highly reflective coating layers are not parallel, the actuator can drive the first lens or the second lens to move to make the two highly-reflective coating layers parallel and ensure that the optical filter can have a great optical filtering effect.

The invention discloses an active carbon filter which comprises a barrel and a bracket, wherein a water inlet is formed in the upper end of the barrel; an air inlet is formed in one side of the water inlet, and a water outlet is formed in the lower end; the barrel is fixed on the bracket; the interior of the barrel is provided with a first filter layer and a second filter layer which are same in structure from top to bottom, and both the first filter layer and the second filter layer comprise baffle plates and active carbon layers; both the first filter layer and the second filter layer are obliquely arranged in the barrel; the first filter layer and the second filter layer are provided with material inlets on higher positions and are provided with material outlets on lower positions; and a push plate is arranged above each material inlet. To change the active carbon, the gate of the material inlet is opened, the to-be-changed active carbon is pushed out of the material outlet by virtue of the push plate, new active carbon is added from the material inlet and the active carbon is uniformly spread by virtue of the push plate; and the active carbon filter is simple in structure, convenient and rapid to change the active carbon, time-saving and labor-saving, sufficient in filtration and high in production efficiency.

The invention discloses a compact type RO (reverse osmosis) water purifier filter element. The compact type RO water purifier filter element comprises a filter flask body and a filter flask cap, wherein a composite filter element is arranged in the filter flask body, and a raw water inlet, a concentrated water outlet and a pure water outlet are formed in the filter flask body; the composite filter element comprises an RO membrane filter element or a nanofiltration membrane filter element, a front filter element coaxial with the RO membrane filter element or the nanofiltration membrane filter element is arranged outside the RO membrane filter element or the nanofiltration membrane filter element, a rear filter element accommodating cavity is formed in an upper filter element cap, a rear filter element is accommodated in the rear filter element accommodating cavity, and the pure water outlet communicated with the rear filter element is formed in the filter flask body. According to the compact type RO water purifier filter element, the front filter element, the rear filter element as well as the RO membrane filter element or the nanofiltration membrane filter element are integrated in the filter flask body, so that the number of the filter elements can be reduced, the filter effect is good, the space occupied by the whole machine is reduced, meanwhile, the door-to-door replacement frequency of the filter elements by service staff can be reduced, and the maintenance cost is reduced.

The invention discloses an aggregate screening device for buildings. The aggregate screening device comprises a base and a screening box, wherein a plurality of iron blocks are arranged on the upper side of the base; a spring is arranged on the upper side of each of the iron blocks; an electromagnet is connected to the upper end of each of the springs; a support platform is arranged on the upper sides of the electromagnets; a sliding rail is arranged on the upper side of the support platform; support plates are arranged at the lower end of the screening box symmetrically; the lower ends of thesupport plates are connected with the sliding rail; a motor is arranged at the right end of the upper side of the support platform; a rotating disc is arranged at the output end of the motor; a rotating shaft is arranged on the periphery of the front side of the rotating disc; a connecting seat is arranged on the right side of the support plate on the right side; a connecting rod is arranged between the connecting seat and the rotating shaft; a dust collection box is arranged at the right part of the upper end of the screening box; a fan is arranged at the upper end of the dust collection box; a dust collection pipe is arranged at the output end of the fan; and a dust collection cover is arranged at one end of the dust collection pipe. The aggregate screening device for buildings has thebenefits of being simple in structure, convenient to use, good in screening effect, long in service life, good in dust collection effect, and energy-saving and environment-friendly.

The invention belongs to the field of swimming pool cleaning, and particularly relates to an automatic swimming pool cleaning machine with a filtering system capable of being cleaned easily. The automatic cleaning machine is composed of a non-power walking wheel, a lower cleaning machine shell, a rigid plane filtering net, impeller water power assemblies, an upper cleaning machine shell and an assembly lock catch, wherein the impeller water power assemblies are arranged at the two ends of a horizontal double-stretching-shaft motor respectively. When the motor rotates forwards, an impeller on one side is meshed with a clutch to rotate along with the motor in the same direction, and an impeller on the other side is not meshed with a corresponding clutch and does not rotate. Dirty water with dirt passes through a water inlet in the bottom of the lower cleaning machine shell to flow into the lower cleaning machine shell through pumping of the rotation impeller. The water inlet is provided with an inwards-opening type one-way valve, the dirty water can only flow into the lower cleaning machine shell but cannot flow out. The dirt is blocked and left in the lower cleaning machine shell through the rigid plane filtering net. The automatic swimming pool cleaning machine with the filtering system capable of being cleaned easily is simple in structure, easy to dismount and mount and convenient to clean.

The invention provides a composite type air filter screen and a preparation method thereof. The composite type air filter screen includes a primary-efficiency filter screen, a particulate filter screen and a smell filter screen; the primary-efficiency filter screen, the particulate filter screen and the smell filter screen are sequentially connected to form the composite type air filter screen; the composite type air filter screen is provided with a lifetime indicating device. The composite type air filter screen allows the primary-efficiency filter screen, the particulate filter screen and the smell filter screen to be composited and superimposed to form a composite structure with three-layer filtration, and thus the filter effect is significant; moreover, the composite type air filter screen also is provided with the lifetime indicating device, so that the purification effect and the lifetime state of the composite type filter screen can be reflected in real time, a user can determine whether the filter screen needs to be replaced according to needs, and the use effect and user experience are ensured. The preparation method of the composite type air filter screen has the advantages of simple and fast process, and convenience for mass production.

The present invention belongs to the field of filtering equipment technology, and is especially one kind of belt type pressure filter. Technologically, the belt type pressure filter is provided with one sealed pressurizing compartment with air inlet, material inlet and filtering chamber; one driving wheel and one sliding mechanism fixed separately to ends of the filtering chamber; one filter belt around the filter driving mechanism comprising the driving wheel and the sliding mechanism; one material container and one filtrate outlet set in the ends of the filter driving mechanism. The belt type pressure filter has the features of relatively high air pressure difference between the pressurizing compartment and the filtering chamber, complete separation of solid and liquid, excellent filtering effect wide application range, simple structure and convenient maintenance.

The invention discloses a smashing device with an excellent screening effect for energy conservation and environment protection of a building, and belongs to the field of building material smashing. The smashing device with the excellent screening effect for energy conservation and environment protection of the building comprises a first box and a second box, an inner wall of the first box is movably connected with a filtering net, a side wall of the first box is connected with a first material conveying mechanism, and a bottom part of the first box is connected with a second material conveying mechanism; a second smashing mechanism comprises dynamic jaw plates and a static jaw plate, an inner wall of the first box is fixedly connected with a bracket, two groups of the dynamic jaw plates are provided, a bottom part of the dynamic jaw plate is connected with a connecting rod, and one end, far away from the dynamic jaw plate, of the connecting rod is rotationally connected with the filtering net; a gap is formed between a centrum roller and a conical cavity, the first smashing mechanism further comprises a first rotating shaft, and the centrum roller is in eccentric connection with the first rotating shaft; the smashing device provided by the invention can realize multiple smashing filtering, the filtering net is driven to move when the dynamic jaw plates move, and thus, a material screened can be conveyed through the first conveying mechanism to a feeding port so as to be smashed for many times.

The invention discloses a sewage treatment apparatus for intensively replacing a filtering device, and a replacement method thereof. The apparatus comprises a box body, a filter frame is arranged at the top of the inner cavity of the box body, the top of the filter frame extends to the outside of the box body, the tops of two sides of the filter frame are fixedly connected with support blocks, thebottoms of the support blocks are in contact with the top of the box body, the top of the left side of the box body is fixedly connected with an electric telescopic rod, the bottom of the electric telescopic rod is fixedly connected with a horizontal plate, the right end of the horizontal plate is fixedly connected with a first motor, and the bottom of the rotating shaft of the first motor is fixedly connected with a buffer mechanism. The apparatus has the advantages of intensive dismounting replacement of a filter plate, and good filtering effect, and solves the problem of the influences ofobstruction of the filter plate, easily caused by accumulation of impurities on the filter plate in the long-time filtering process due to inconvenient intensive replacement of most filter plates fixedly mounted in existing sewage treatment apparatuses, on sewage purification.

The invention discloses high-strength air filter paper and a preparation method thereof. The high-strength air filter paper is prepared from, by weight, 50-95 parts of glass fibers, 5-11 parts of a fiber adhesive, 8-13 parts of a dispersing agent, 1-5 parts of a liquid-state binding agent, 6-9 parts of surfactants and 3-8 parts of a cross-linking agent. According to the high-strength air filter paper, the dispersing agent and the liquid-state binding agent are added when the high-strength air filter paper is prepared, therefore, the service life of the filter paper can be effectively prolonged, and the filtering effect is better; meanwhile, due to the fact that the sulfate, sulfonate and phosphate surfactants are added in the preparing process, the surface tension of the filter paper can be effectively decreased, the strength of the filter paper can be improved, the very good water and oil repellence can be achieved, the high-strength air filter paper adapts to various high-temperature rugged environments, and the service life of a filter is prolonged.

The invention relates to a spaceflight optical remote sensing high-density quantization information processing method, and belongs to the technology of spaceflight remote sensing. The ground resolution of a conventional spatial optical remote sensor is difficult to improve at an on-orbit imaging stage because of the limit of the size of a detector, and a large amount of noise is generated on a focal plane because of the degeneration of the detector, thereby causing spot noise in an obtained image. An ideal effect is difficult to achieve through a conventional digital image processing method. Starting from the quantum state of information, the method gives consideration to the superposition state information, achieves the de-noising through the filtering in a quantum space, synthesizes a plurality of pieces of quantum information, and finally improves the information amount obtained by a system. The method is suitable for a satellite degeneration image or an image which is difficult to process on the ground, and hopefully, the method can be applied to the satellite-borne processing after the calculation complexity is reduced.

The invention discloses a window-type drainage well and a construction method of the window-type drainage well. The window-type drainage well comprises a well casing and a well base. The well casing is provided with a well wall. The well wall is provided with a drainage window. The inner wall of the drainage window is of a circular truncated cone shape. The drainage window is provided with a reducing pipe. The outer wall of the reducing pipe is matched with the inner wall of the drainage window. A cage is arranged in an inner cavity of the reducing pipe and matched with the inner wall of the reducing pipe, the cage is filled with a filtering device, and a first ring flange is arranged on the outer side of the reducing pipe. The first ring flange is connected with a second ring flange, and the second ring flange is connected with a seepage collection device. Or a blind ring flange is fixed on the first ring flange. The construction method of the window-type drainage well comprises the steps of excavating to form a well base foundation, manufacturing the well base, manufacturing the well casing, placing the cage, the filtering plate, coarse sand bags and gravel bags in the reducing pipe, wherein the coarse sand bags and the gravel bags are wrapped in geotechnical cloth, and connecting the first ring flange with the second ring flange or the blind ring flange. According to the window-type drainage well and the construction method of the window-type drainage well, a window can be blocked off, and the window-type drainage well can be further transformed into a seepage collection well; the window-type drainage well is flexible in use and capable of integrating two functions, thereby reducing investments.

The invention discloses a weak signal detection method based on a self-adaptive stochastic resonance filter. According to the detection method, a sensor is installed on a bearing to be detected to acquire the vibration signals of the bearing, and then envelope demodulation is performed on the vibration signals so that the input signals Z[n] of the filter are obtained; and the filter parameters are adjusted by using a genetic algorithm to filter the Z[n] and the SQI value of the output signals is calculated and optimized. The detection method has the following advantages that firstly, self-adaptive enhancement of the bearing fault weak signals can be realized under the condition that the fault frequency is unknown; secondly, the detection method has a great filtering effect so that the high-frequency and low-frequency noise interference can be simultaneously filtered; and thirdly, the computing speed can be enhanced by the genetic algorithm so as to enhance the efficiency of bearing fault diagnosis.

The invention provides a filter element for purifying running water. The filter element comprises a shell with an opening, an upper filtering interlayer arranged at the opening position of the shell, a lower filtering interlayer arranged at the bottom of the shell and a middle filtering interlayer arranged in the shell, wherein a first filtering cavity is formed between the upper filtering interlayer and the middle filtering interlayer in the shell, a second filtering cavity is formed between the middle filtering interlayer and the lower filtering interlayer, activated carbon is arranged in the first filtering cavity, and anion and cation resin is filled in the second filtering cavity. The filter element for purifying running water is mainly applied to household and personnel purifying vessels, the middle filtering interlayer ensures filtering material in the filter element to be arranged in a layering manner, no gas blocking phenomenon occurs in the filtering core during filtering, and good filtering effect is achieved; a flow-limiting pore is formed at the bottom of the shell, the dead weight of water is used as power, and the reaction time of water and resin is controlled by size of pore diameter; the shell is tapered, the resin is of a structure with more on top and less at bottom, the resins at the upper layer and the lower layer are saturated simultaneously, and the service life of the filter element is prolonged.

The invention belongs to the technical field of purifiers or purifying equipment and in particular discloses an oil smoke purification filtering device capable of automatically replacing a filter belt. The filtering device comprises an outer frame and the filter belt arranged inside the outer frame, wherein the filter belt is a coiled filter belt; and the two end parts of the outer frame are provided with a winding device for automatically winding the coiled filter belt and a driving motor for driving the winding device to wind a blocked filter belt and drawing out a new filter belt. The filtering device can automatically replace the blocked filter belt in time and the outer frame does not need detaching, so that the filtering device is simple and convenient to operate and saves time and labor. Moreover, a coil of filter belt can be used for a plurality of purification periods and has a long service life, so that the delay of a completion period due to frequency replacement of the filter belt is reduced and purifying efficiency is improved effectively.

The invention relates to a dedusting, purifying and filtering process for waste incineration flue gas, which is mainly completed by matching a dedusting, purifying and filtering device for waste incineration flue gas, and specifically comprises the following steps: S1, mounting the device, S2, filtering flue gas, S3, washing the device, and S4, carrying out recycling. The device can solve the problems that when existing equipment is used for purifying flue gas, the filtering equipment cannot be cleaned and replaced in time, after being used for a long time, smoke dust impurities easily block the filtering equipment and affect the filtering effect of smoke, and when the existing equipment is used for cleaning the filtering equipment, the cleaning effect is poor, cleaning is inconvenient, dust adhering to the outer side of a filtering net is easily extruded into the filtering net, and the service life of the filtering net is affected are solved.

The invention discloses a filter, which belongs to the technical field of manufacturing of water supply apparatuses. The filter comprises a PVC shell, wherein the upper part of the PVC shell is provided with an opening, the bottom part of the PVC shell is provided with a water outlet, the outer side of the upper part of the PVC shell is connected with a lower fixed part, a stainless steel wire filter cylinder is arranged in the shell, the water inlet part of the filter cylinder is connected with an upper fixed part, the upper fixed part is in threaded connection with the lower fixed part, a replaceable disposable non-woven fabric filter bag is arranged in the filter cylinder, the water inlet part of the filter bag sleeves the outer wall of a lower snapping member which is provided with a snapping groove, the snapping groove of the lower snapping member is in movable connection with the bayonet lock of an upper snapping member, the water inlet part of the upper snapping member has a flange, and the flange is arranged on a corresponding bearing table of the upper fixed part in the manner of pressure welding. The filter can overcome the probable problems of blockage in drainage pipelines, difficult cleaning and influence on other apparatuses caused by accumulation of dirt during usage of a washing container.

The invention provides a tea screening and drying finish processing device. The tea screening and drying finish processing device comprises a processing box; a fixed feed port is welded to the middlepart of the upper surface of the processing box; a material guide plate is arranged below the feed port; a magnetic plate is arranged below the left side of the material guide plate; a secondary screening net plate is arranged below a primary screening net plate; the left end of the secondary screening net plate and the left end of the primary screening net plate are fixed to a transmission plate,and the transmission plate is inlaid in the inner wall of the left side of the processing box; a transmission rod is fixed to the left end of the transmission plate and is leftwards connected into ascreening box; transmission hinges are arranged at the end part of the transmission rod; a partition plate is vertically welded to the inner upper wall and the inner lower wall of the middle part of the processing box; material guiding ports are formed in the positions below the secondary screening net plate and the primary screening net plate separately; a drying box is welded to the right uppercorner of the processing box; and a drying resistance wire is arranged in the drying box. The tea screening and drying finish processing device has the advantages of being simple and convenient to useand operate, capable of carrying out screening and drying simultaneously, good in finish processing effect and high in practicability.

The invention discloses a voice storage and classification system based on a memristor and relates to the field of digital audio information storage and classification in electronic techniques. The voice storage and classification system comprises a pickup module, an amplification module, a memory resisting filter module, an A/D conversion module, a control module and a storage module based on memristor cross arrays, the control module is further connected with a voice classification module, the voice classification module is a neural network based on the memristor, and a hardware circuit of neurons of the neural network is a memory resisting bridge neuron circuit.

The invention relates to a ship air conditioner which comprises an air conditioner box and a fresh air box, wherein a fresh air and return air mixing box, an air filter, an air heat exchanger, a water retaining device, a humidifier and an air sending fan are sequentially arranged in the air conditioner box, a return air port is arranged on the front surface of the fresh air and return air mixing box, a toxicity-filtering fresh air port is arranged at the upper end of the fresh air and return air mixing box, and the air sending fan is connected with an air outlet static pressure box; and a fresh air adjusting port, a fresh air dust filter and a dual-speed fan are sequentially arranged in the fresh air box from top to bottom, wherein an air outlet port of the dual-speed fan is communicated with the fresh air and return air mixing box in the air conditioner box. The ship air conditioner respectively controls the dual-speed fan used for fresh air inlet and the fresh air adjusting port to be in the opening state or the closing state through an electric control box and controls the toxicity-filtering fresh air port used for air inlet after toxicity-filtering to be in the opening state or the closing state according to air environment located by a ship, thereby immediately switching the different air inlet sources on the air conditioner box and the fresh air box, meeting the air regulation of the ship under the normal or accidental working conditions, having the advantages of strong applicability, good filtering effect and long service life and being applicable to the ships during voyage and wartime.

The invention provides a disposable precision filter infusion set for children, which is characterized by comprising a bottle stopper puncture outfit, a drip bucket, an injection part, a liquor filter, a flow regulator, a conical joint and a deep vein trocar which are successively connected by pipelines, wherein the bottom part of the bottle stopper puncture outfit is connected with an air filter with a filtering aperture of 0.2mu m; and the filtering aperture of the liquor filter is 0.2-2mu m. The invention has the advantages of no toxicity or harm and good liquor filtering effect, and is suitable for infants and children to use.