34results about How to "Achieve concentration" patented technology

The invention provides a method for detecting the concentration and molecular weight of residual anionic polyacrylamide in machine-made sand, which comprises the following steps: establishing a database of dual thresholds of anionic polyacrylamide standard aqueous solution under the conditions of different concentrations and different molecular weights on the basis of an I-V relation curve of a standard sample, fitting the database of the dual thresholds of the anionic polyacrylamide standard aqueous solution into a nonlinear curved surface formula; the method comprises the following steps: obtaining characteristic points V1 and V2 from an I-V relation curve of a to-be-detected sample, and respectively substituting V1 and V2 into a nonlinear curved surface formula formed by fitting a database of dual thresholds of an anionic polyacrylamide standard aqueous solution to obtain the molecular weight Mr and concentration phi of anionic polyacrylamide in the to-be-detected sample; according to the mass ratio of the machine-made sand to the deionized water, the concentration phi 0 of the anionic polyacrylamide attached to the machine-made sand is obtained through calculation. The problem that the limitation that the molecular weight of anionic polyacrylamide is unknown lacks in the current machine-made sand detection field is effectively solved.

The utility model belongs to the technical field of mirror boxes, and particularly relates to a circular intelligent mirror box. The device comprises a box body which is circular; the mirror door comprises a mirror frame hinged to the box body and a mirror door piece installed on the side, away from the box body, of the mirror frame; the mirror frame is provided with a beauty mirror and a storage rack, the mirror door piece comprises a circular mirror door body and a lamp strip installed on the mirror door body, a clamping groove is formed in the mirror door body, and the lamp strip is installed in the clamping groove of the mirror door body in an embedded and clamped mode. Compared with the prior art, the mirror box disclosed by the utility model integrates the functions of a mirror, illumination, storage and the like on the mirror door, so that the concentration and integration of the functions are realized, and the mirror box is more convenient and smoother to use.

The invention relates to a bottom discharge-lifting type adult fish sucking and catching device for industrial aquaculture. The bottom discharge-lifting type adult fish sucking and catching device comprises a closed fish collecting tank, the closed fish collecting box comprises a fish collecting box shell, an inclined table which inclines downwards is arranged at one end adjacent to the fish collecting box shell, a fish collecting cavity is formed above the inclined table, a top plate of the fish collecting cavity is a transparent observation plate which inclines downwards, and the fish collecting cavity is communicated with the fish collecting box shell through a fish filtering plate. At least one side of the fish collecting cavity is communicated with a fish discharging channel device of the culture pond through a fish inlet pipe; a fish guiding housing is arranged at the lower part of the fish collecting cavity and is connected with a fish discharging channel connected to the outside; a fish collecting box water outlet pipe and a water suction pump are arranged at the other end adjacent to the fish collecting box shell; during fish discharging, the water suction pump on the water outlet pipe of the fish collecting box is firstly started, after adult fishes enter the fish collecting cavity of the closed fish collecting box, the density of the adult fishes in the fish collecting cavity is detected by the visual detection device, and when the density of fish schools reaches a set value, the control system automatically starts fish discharging operation of the fish collecting cavity and closes the water suction pump.

The present invention relates to the field of air dust reduction equipment, and in particular to an environmentally friendly dust reduction device for green and environmentally friendly building construction, including an air dust reducer, the air dust reducer includes a top bin, an air inlet is opened on one side of the top of the top bin, an exhaust fan is installed inside the top bin, a connecting tube is fixedly connected to the bottom of the top bin, a filter bin is fixedly connected to the bottom of the connecting tube, a guide bin is installed in the upper part of the filter bin, a filter screen is arranged in the upper part of the guide bin, a uniformly distributed connecting pipe is fixedly connected to the outer side of the bottom of the guide bin, a ring bin 2 is fixedly connected to the bottom of the filter bin, a ring bin 1 is arranged on the top of the ring bin 2, a water inlet is installed at the rear part of the outer periphery of the filter bin, the water inlet is used to connect a water source, and a uniformly distributed water inlet is arranged on the inner side of the ring bin 2. The present invention can utilize direct water washing of the air to achieve filtering and purification of the air in an indoor construction site, which is beneficial to the health of workers on the construction site.

The invention discloses a distributed optical fiber longitudinal difference box transformer substation protection measurement and control system, which adopts an enhanced unit case, is designed according to strong vibration resistance and strong interference resistance, and mainly comprises a power supply output plug-in, an input plug-in, a communication plug-in, a CPU plug-in, an alternating current plug-in and a man-machine conversation plug-in, through the transformer protection measurement and control unit, the switch cabinet protection measurement and control unit and the central monitoring unit, functions of data acquisition and control, electric quantity protection, non-electric quantity protection, optical fiber differential protection, arc light protection, temperature monitoring and gas leakage monitoring are completed, and data communication functions of equipment such as a communication management machine and an optical fiber switch can be integrated. Communication information of intelligent equipment to which the power generation subsystem belongs is centralized and transmitted, and the self-healing ring optical fiber Ethernet is accessed to a booster station integrated automation system, so that remote management and automatic monitoring of the booster station on the wind power plant are realized, and a comprehensive and intelligent operation management mode of the wind power plant is satisfied.

The utility model discloses a bus duct with a heat dissipation structure, which relates to the technical field of bus ducts and comprises a bus duct main body, mounting sheets are fixedly mounted on two sides of the top of the bus duct main body, heat absorption plates are mounted in the mounting sheets, and two PE bus bars penetrating through the heat absorption plates are arranged in the middle of the bus duct main body. Heat conducting plates are fixedly connected to the two sides of the bottom of the heat absorbing plate, and heat conducting mechanisms are arranged on one sides of the heat conducting plates; the heat conduction mechanism comprises two heat conduction pieces, a plurality of heat conduction thin pipes and a heat collection block. The two heat conduction pieces are fixedly connected to the two ends of one side of the heat conduction plate. According to the technical scheme provided by the utility model, heat generated in the bus duct can be effectively dissipated, and potential safety hazards caused by over-high temperature of a traditional bus duct are avoided. And meanwhile, the heat dissipation path of the product is optimized, so that the heat dissipation is more uniform, and the heat dissipation performance of the product is further improved.

The invention discloses a method for improving the SAGD (Steam Assisted Gravity Drainage) development effect of a super heavy oil reservoir. The method comprises the following steps: drilling a steam injection well and a production well which are vertically opposite in position in an oil layer; steam is injected into the steam injection well and the production well, the steam injection well and the production well are communicated in a heating mode, an oil drainage channel is built between the steam injection well and the production well, and when the communication degree between the steam injection well and the production well meets the requirement, an SAGD production stage is started; closing the production well, injecting high-temperature, high-pressure and high-speed superheated steam into the steam injection well, and expanding the volume of a reservoir above the steam injection well; after the steam injection pressure of the steam injection well reaches a required value, soaking the steam injection well, and building a liquid level by soaking energy storage; underground environment parameters of the production well are collected, when it is judged that production conditions are met, the steam injection well is kept closed, the production well is opened for production, and liquid drainage energy release extraction is completed; and repeating for multiple rounds until the oil production level of the production well is not increased any more, and then turning to a conventional SAGD production stage. According to the method, the initial yield of SAGD production can be rapidly increased, and the problems that the expansion speed of the steam cavity is slow and underground steam channeling is likely to happen are solved.

The application provides a method for constructing a regulation network of a potato JA pathway in response to Cd stress. The method relates to the technical field of data processing, and comprises the following steps: obtaining multi-omics time series data of potatoes under the conditions of cadmium stress and methyl jasmonate treatment; performing signal decomposition and feature purification on the multi-omics time series data by using a weak stationary signal decomposition method based on sequence patterns to obtain a plurality of intrinsic mode components; constructing a dynamic regulation network model to capture multi-scale change patterns of response characteristics in the time dimension and the concentration dimension, thereby extracting deep features; inputting the intrinsic mode components into the trained dynamic regulation network model to output an attention weight matrix, thereby forming a regulation network representing the dynamic regulation intensity of the jasmonic acid pathway; and solving the optimal exogenous methyl jasmonate concentration for promoting biomass and inhibiting cadmium accumulation by optimizing an objective function. The application provides a high-precision model tool for analyzing the regulation mechanism of plant hormone signals under heavy metal stress.

This invention provides a salt-resistant evaporator and its preparation method that utilize a dual-scale structure to achieve salt migration and bidirectional water replenishment, belonging to the field of saline wastewater treatment such as seawater desalination. The salt-resistant evaporator of this invention includes: an evaporation main frame, composed of an array of micron-sized unit cells connected together, with micron-sized pores between each pair of micron-sized unit cells; millimeter-sized channels passing through the evaporation main frame and located at its geometric center, communicating with the micron-sized pores between each pair of micron-sized unit cells; and a hydrophilic photothermal conversion coating disposed on the outer surface of the evaporation main frame. The salt-resistant evaporator of this invention forms a temperature gradient and a concentration gradient inside, thereby triggering Marangoni convection, pumping salt from a high-concentration region (micron-sized unit cells) to a low-concentration region (millimeter-sized channels), and finally returning it to the solution to be evaporated, ultimately achieving real-time salt migration.

The utility model relates to a car technical field especially, it is a kind of central hand box refrigeration structure, including central hand box, condenser pipe, semiconductor refrigeration module, shroud and heat dissipation pipeline, wherein, central hand box inside is equipped with refrigeration space;Condenser pipe is embedded in the lateral wall of refrigeration space, and its both ends are communicated with the refrigerant circulation pipeline of car air conditioning system by pipeline;Semiconductor refrigeration module cold end is embedded in the lateral wall of refrigeration space, and hot end is placed in the inside of shroud;Shroud is fixed in the inside of central hand box;One end of heat dissipation pipeline is communicated inside shroud, and the other end is communicated to engine cabin, and exhaust fan is embedded in the inside of heat dissipation pipeline;The utility model proposes a kind of central hand box refrigeration structure, it is additionally equipped with semiconductor refrigeration module as auxiliary cold source, can carry out cold supplement to refrigeration space under the condition that vehicle is temporarily extinguished, effectively inhibits the temperature rise in refrigeration space, and reduces temperature fluctuation, guarantees the continuity and stability of refrigeration effect.

The breeding box comprises a box body, a rectangular feed changing opening is formed in the right side face of the box body, a feed changing barrel is arranged in the feed changing opening, a rotating disc is rotationally connected to the lower side face in the box body, a partition plate is arranged on the upper side face of the rotating disc, and the upper side face of the partition plate is rotationally connected with the feed changing barrel. A rotating shaft is arranged on the lower side face of the rotating disc, the lower end of the rotating shaft penetrates through the box body and is located below the box body, and the right side face of the box body is connected with a blocking door for sealing the material changing barrel in a front-back sliding mode. A feeding assembly located on one side of the partition plate is arranged on the upper side face of the rotating disc. The device has the advantage that the chrysopa can be prevented from escaping when food is supplemented.

The utility model belongs to the field of cleaning, and particularly relates to vortex type air pump cleaning equipment which comprises two vertical plates. A collecting box is fixedly connected to the middle of every two adjacent vertical plates. The middle parts of the adjacent vertical plates are fixedly connected with transverse plates; the top of the transverse plate is fixedly connected with an air pump body; the top of the transverse plate is fixedly connected with a watering assembly. A plurality of first connecting rods are fixedly connected to the bottom of the transverse plate; the end parts of the adjacent first connecting rods are fixedly connected with connecting plates; the output end of the air pump body is fixedly connected with an air pipe; the air pipe and the transverse plate are arranged in a penetrating mode. The air pipe is communicated with the connecting plate; the bottom of the connecting plate is fixedly connected with elastic cloth; the bottom of the elastic cloth is fixedly connected with a pressing plate; by arranging the elastic cloth, airflow blown out by the air pump body can flow along the elastic cloth and reach the surface of the workpiece, the airflow concentration of the device is achieved, the airflow amount reaching the surface of the workpiece is increased, and the drying effect of the device on the workpiece is improved.

The utility model discloses a single well pipeline, hydrogen sulfide closed automatic monitoring device of oil gathering trunk line, including detection casing, the detection casing top sets up linear drive arrangement, the detection casing inside sets up sealing device, sealing device is connected to the output shaft of linear drive arrangement, the detection casing is divided into air cavity, detection cavity by sealing device, the detection casing sets up exhaust port in air cavity, the detection casing sets up gas guide port in detection cavity, the detection casing sets up detection mouth, and the detection mouth is communicated with air cavity or detection cavity under the control of sealing device, and the gas guide port is connected gas -liquid separation collection device. The utility model will collect the gas in the pipeline, measure the hydrogen sulfide content in natural gas, and push the measurement gas back to the original flow after measuring, and the hydrogen sulfide gas that escapes a little is absorbed through the hydrogen sulfide removing agent, which fundamentally eliminates the environmental air pollution.

The invention relates to a valve block, a control cover plate and a cartridge valve. Compared with the prior art, the second pressure buildup oil port of the pressure buildup oil way is used for obtaining hydraulic oil from the second main oil way of the valve block, and the first pressure buildup oil port is used for conveying the obtained hydraulic oil to the first main oil way of the valve block through the pressure buildup oil way; the first pilot oil way is connected with the pressure buildup control valve and drives the pressure buildup control valve to be opened through a hydraulic signal so as to conduct the pressure buildup oil way. Due to connection of the pressure buildup oil circuit, bypass connection of the second main oil circuit and the first main oil circuit is achieved, then oil pressure between the second main oil circuit and the first main oil circuit is balanced, the oil pressure difference between the two sides of the valve element assembly is reduced, the initial potential energy of oil flowing out can be reduced after the valve element is opened, and hydraulic oil can flow gently; and the pressure impact problem of the system at the conduction moment is improved.

The present invention discloses a method for simultaneously detecting multiple precocious puberty biomarkers; the method comprises the following steps: 1) taking a urine sample and adding an internal standard solution; 2) enzymolysis: adding a glucuronidase solution to the sample solution of step 1) for enzymolysis; 3) the samples after enzymolysis are respectively loaded on an HLB solid phase extraction plate and a MAX solid phase extraction plate, and after washing with a rinsing liquid to remove interfering substances, the samples are eluted with an eluent, and the eluents of the HLB solid phase extraction plate and the MAX solid phase extraction plate are combined, and UPLC-MS detection is performed to obtain the contents of multiple precocious puberty biomarkers; the multiple precocious puberty biomarkers include exogenous hormone compounds, plasticizers, bisphenol A compounds, and endogenous hormone compounds; the detection types of the multiple precocious puberty biomarkers are 102 or more. The present invention is easy to operate and greatly improves the detection speed, throughput, and types and quantity of precocious puberty biomarkers covered.

The application relates to the technical field of unmanned aerial vehicles, in particular to a throwing device and an unmanned aerial vehicle thereof, which comprises a base, an accommodating cavity for accommodating a control panel is formed in the base; a support frame extends outwardly with the base as the center, the support frame is provided with a wiring cavity communicating with the accommodating cavity; a quick-release assembly is arranged at the top of the base and / or the support frame, and a wire passing channel communicating with the accommodating cavity is arranged in the quick-release assembly; a plurality of throwing assemblies are correspondingly arranged at the ends of the support frame, so that the center of gravity of the base is kept balanced, the cables of the throwing assemblies sequentially pass through the wiring cavity of the support frame, enter the accommodating cavity and are connected with the control panel, and the cable of the control panel is led out through the wire passing channel and is used for electrically connecting with the unmanned aerial vehicle. The application realizes centralized, orderly and concealed arrangement of the cables of the multiple throwing assemblies, and the structured wiring mode solves the problem of disorder of the internal cables of the traditional multiple throwing end devices.

The utility model discloses a multipurpose lifting lug of a slipway launching sliding plate. The lifting lug comprises a bottom plate, a binding main plate is perpendicularly and fixedly connected to the bottom plate, a first main plate lifting hole is formed in the front section of the binding main plate, a second main plate lifting hole is formed in the front section of the binding main plate, first reinforcing webs are perpendicularly and fixedly connected to the middle of the bottom plate and the middle of the binding main plate respectively, first web lifting holes are formed in the first reinforcing webs, and second web lifting holes are formed in the second reinforcing webs. Second reinforcing webs are vertically and fixedly connected to the middle of the bottom plate and the middle of the binding main plate respectively, second web lifting holes are formed in the second reinforcing webs, and side plates are vertically and fixedly connected to the rear ends of the bottom plate and the binding main plate respectively. The lifting lug integrates the functions of different lifting lugs and is long in service life.

The invention provides an on-chip variable resistance device structure and electronic equipment. The on-chip variable resistance device structure comprises a substrate, a nitride epitaxial layer, an electrode structure layer and a gate structure layer, wherein the nitride epitaxial layer is formed on the substrate; the electrode structure layer and the gate structure layer are formed on the nitride epitaxial layer; the electrode structure layer comprises a first electrode and a second electrode, the nitride epitaxial layer comprises a channel layer and a barrier layer which are used for forming a heterojunction interface, and the gate structure layer comprises a first semiconductor layer and a third electrode which are stacked and formed on the barrier layer, and a separation groove formed in the first semiconductor layer. By regulating and controlling the extension path and the structure parameter of the separation groove on the barrier layer and combining the applied voltage of the third electrode, the concentration and the distribution of two-dimensional electron gas at the heterojunction interface and the dynamic control of a conductive channel can be realized, so that the wide-range and high-precision dynamic adjustment of the on-chip resistance device structure on-resistance is realized, and the on-chip resistance device is suitable for large-scale production. The technical requirements of a high-performance integrated system on the on-chip variable resistor are met, and the on-chip variable resistor has important application value.

The invention discloses cyclic crushing equipment for bamboo powder production, and relates to the technical field of bamboo powder production. The device comprises a mounting bottom frame, and a crushing mechanism is fixedly mounted on one side of the top end of the mounting bottom frame; through the arrangement and use of the crushing mechanism, bamboo sections can be sliced and then crushed, so that the slicing and crushing functions are integrated, two pieces of equipment do not need to be input for step-by-step operation during production, the production cost is reduced, and the production efficiency is improved. The bamboo powder at the bottom end of the inner cavity of the crushing barrel can be guided into the upper end of the inner cavity of the crushing barrel again for cyclic crushing during the crushing operation period, so that the crushing effect of the crushing equipment is effectively improved, mud blocks attached to the outer walls of bamboo sections of different sizes can be effectively scraped through the arrangement and use of an impurity removal mechanism, and the practicability is high. And therefore, mud blocks can be effectively prevented from entering the crushing mechanism and being crushed and doped in the bamboo powder, the processing quality of the bamboo powder is effectively improved, and the practicability and functionality of the crushing equipment are effectively improved.

The invention discloses an integrated aircraft nest and an aircraft launching method. The integrated aircraft nest comprises a storage device, a link landing gear, a rocket supporting assembly, a front lodging supporting assembly and a rear guide rail supporting assembly. The connecting rod undercarriage is rotationally connected to the interior of the storage device; the rocket supporting assembly, the front lodging supporting assembly and the rear guide rail supporting assembly are all detachably connected with the storage device. When the aircraft is in the recovery state, the connecting rod landing gear is located at the first position and abuts against the aircraft; when the aircraft is in a launching state, the link landing gear returns to the first position, the rocket supporting assembly, the front lodging supporting assembly and the rear guide rail supporting assembly abut against the aircraft, and the aircraft is configured to be launched under the action of the rocket supporting assembly, the front lodging supporting assembly and the rear guide rail supporting assembly. The storage, transportation and launching functions of the aircraft can be integrated, and centralized and efficient management of the aircraft in a limited space is achieved.

The application discloses a front-mounted natural gas oil removal drying device applied to the technical field of oil removal devices, and the natural gas is conveyed into a drying tank body, so that the natural gas is floated in the form of bubbles through a gas surge pipe into a clean water tank, and the flowing direction of the pure water in the clean water tank to the drying tank body effectively prevents the water in the drying tank body from entering the clean water tank along with the bubbles, further effectively prevents oil from entering the clean water tank, realizes the separation of the natural gas and the oil, utilizes the natural gas bubbles which are concentrated and floated by the extension pipe, and drives the pure water in the clean water tank to rise along with the bubbles in the extension pipe by the water guide paddle wheel, so that the natural gas is released from the top end of the extension pipe, the pure water which rises along with the bubbles is overflowed from the top end of the extension pipe, the pure water is effectively prevented from staying in the natural gas release area, the oil which is left on the liquid surface of the pure water is effectively prevented from contacting the natural gas, and the oil removal effect of the natural gas is further improved.

This invention discloses an air particulate matter separation device and method. The device includes a fan, a purified water chamber, and a multi-stage separation chamber. A filter element is installed within the multi-stage separation chamber. The fan blows air carrying dust particles into the multi-stage separation chamber, causing the dust particles (calcium carbonate particles) to be filtered onto the filter element. The multi-stage separation chamber is connected to a first gas separation mechanism, which in turn is connected to the purified water chamber. The purified water chamber stores distilled water. The first gas separation mechanism separates carbon dioxide from the air and inputs the carbon dioxide into the purified water chamber, converting the distilled water into carbon dioxide-containing water. The purified water chamber is connected to the multi-stage separation chamber, and the filter element is rinsed using this carbon dioxide-containing water. During physical rinsing, carbon dioxide, water, and calcium carbonate react to form calcium bicarbonate dissolved in the water, effectively removing dust particles adhering to the filter element, preventing filter pore clogging, extending filter element life, and avoiding frequent filter element replacements.

The utility model belongs to the technical field of food processing, and discloses a food processing machine which comprises a stirring cup, a stirring piece installed in the stirring cup and a main machine installed above the stirring cup, a motor assembly for driving the stirring piece is arranged in the main machine, and the motor assembly comprises a motor and a reduction gearbox. An ultraviolet lamp and a lampshade covering the outer side of the ultraviolet lamp are further arranged in the main machine, ozone is generated in the lampshade through the ultraviolet lamp, a ventilation opening is formed in the bottom of the lampshade, an air outlet communicated with the ventilation opening is formed in the bottom wall of the main machine, and the air outlet is communicated with an inner cavity of the stirring cup. The lampshade is arranged on the outer side of the ultraviolet lamp, so that the ultraviolet lamp is prevented from being exposed, direct irradiation of ultraviolet rays to components in the host is avoided, and internal plastic parts are protected; according to the ultraviolet lamp, generated ozone is firstly concentrated in the lampshade, then escapes to the air outlet along the ventilation opening and flows to the inner cavity of the stirring cup from the air outlet, so that the generated ozone is prevented from being dissipated everywhere, concentration and flow direction guide of the ozone are realized, and the sterilization efficiency of the ultraviolet lamp is improved.

This utility model discloses an integrated endoscopic culture anti-contamination device with infusion delivery function, belonging to the field of endoscopic culture devices. It includes a base, with multiple sets of culture tubes connected to the top of the base. Each set of culture tubes has a guide tube connected to its outer surface, and the end of the guide tube is connected to a delivery tube. Each set of culture tubes has a diversion tube connected to its bottom end, and the end of the diversion tube is connected to a drain tube. A protective component is provided at the top of each set of culture tubes to seal and protect the culture dishes inside. Through the automatic diversion structure of the delivery tube and guide tube, combined with an infusion pump, the culture medium is delivered centrally and uniformly, eliminating the need for manual injection of each set, thus solving the problem of low efficiency in traditional devices. Furthermore, the use of an electronic valve enables automated and independent control of waste liquid discharge, allowing for flexible adjustment of the draining timing according to the progress of each set of culture tubes, avoiding cross-contamination caused by simultaneous draining of multiple sets.

The invention discloses a cover body of a liquid packaging box and the liquid packaging box. The cover body of the liquid packaging box comprises a cover cap, an internally-cutting piece and a cover base. The cover base is fixed to the liquid packaging box, the cover cap is located on the outer side of the cover base, the internally-cutting piece is located in the cover base, and the cover cap, the internally-cutting piece and the cover base are provided with force transmission devices, so that the cover cap firstly drives the internally-cutting piece to axially move from a first position to a second position in the cover base and pierce a sealing layer of the liquid packaging box during first-time opening; then, the inner cutting piece is driven by the cover cap to rotate around the axial direction to cut a sealing layer of the liquid packaging box, and an opening is formed; and at least one drop is generated when the contents in the liquid packaging box flow out of the cover body. According to the cover body of the liquid packaging box and the liquid packaging box, contents can flow out slowly, the dumping distance of the contents is shortened, and the situation of choke throat is prevented; in addition, the drinking experience feeling can be improved.

The application relates to the technical field of semiconductor packaging, in particular to a radio frequency unit; the unit comprises a substrate; a semiconductor device module is arranged on the substrate, and the semiconductor device module comprises a filter chip and a to-be-filled device; the filter chip has a first end closest to a first edge of the substrate and a second end farthest from the first edge of the substrate, the first end is arranged at a first distance from the first edge of the substrate, and the second end is arranged at a second distance from the first edge of the substrate; the to-be-filled device has a third end closest to the first edge of the substrate and a fourth end farthest from the first edge of the substrate, the third end is arranged at a third distance from the first edge of the substrate, and the fourth end of the to-be-filled device is arranged at a fourth distance from the first edge of the substrate; the third distance and the fourth distance are not simultaneously between the first distance and the second distance. The radio frequency unit adopting the application can centrally arrange the filter chip in the module, realizes centralized film coating area, saves the film coating area, and reduces the cost.

A kind of gel material for reducing bladder stone formation and its preparation method and application, the raw materials of the gel material include temperature-sensitive component Pluronic F127, photo-crosslinking component methacrylated gelatin and active functional ingredient cerium dioxide nanoparticles.The gel material is liquid at low temperature, which is convenient for perfusion into bladder through catheter;It quickly changes into physical gel at body temperature, realizing in-situ forming;Then it occurs photo-crosslinking through ultraviolet irradiation, forming chemical crosslinking gel with high mechanical strength and good stability, which can resist urine flushing and realize long-term residence.Loaded cerium dioxide nanoparticles continuously remove reactive oxygen species in stone formation microenvironment by simulating catalase and superoxide dismutase activity, thereby inhibiting the nucleation, growth and aggregation of crystals.The material has excellent biocompatibility, simple preparation method, can significantly reduce bladder stone formation, and has broad application prospect in preventing postoperative recurrence of bladder stone and conservative treatment.

The utility model relates to the technical field of dust removal, in particular to dust removal equipment which comprises a dust removal box, a cleaning device is arranged in the dust removal box and close to the upper portion, the cleaning device comprises a motor and a plurality of sweeping rollers, an air blower is embedded in the right end face of the dust removal box and close to the middle, and a collecting box is arranged in the middle of the left end face of the dust removal box. According to the dust removal equipment, the cleaning device is arranged, under the cooperation of a plurality of cleaning rollers, corn kernels entering the dust removal equipment are fully cleaned and matched, a plurality of gears are meshed with a central gear, the central cleaning roller drives the four surrounding cleaning rollers to rotate synchronously, a motor provides power, an air blower is arranged and connected with a power source, and air is continuously blown into the dust removal equipment; corn kernels are separated from dust particles, shreds and bract chippings under the action of gravity, a storage box collects falling corn kernels, a dust collection box is matched in a collection box, the blown dust particles, shreds and bract chippings can be collected easily, overall combination and installation are convenient and fast, and corn dust removal cooperation can be carried out rapidly and conveniently.

The invention relates to a valve (6) for a liquid system (2) of a vehicle, having a valve housing (8) comprising a plurality of valve housing openings, a valve body rotatably arranged in the valve housing (8) about an axis of rotation (10), the valve body comprising at least one flow-conducting connection channel for flow-conducting connection of at least two valve housing openings of the plurality of valve housing openings, a valve sealing device arranged between the valve housing (8) and the valve body, the valve sealing device comprising valve sealing openings corresponding to the valve housing openings, a valve drive device for automatic rotation of the valve body about the axis of rotation (10), and a plurality of flow channels (12, 14, 16, 18, 20) corresponding to the valve housing openings for flow-conducting connection of the valve (6) to the remainder of the liquid system (2), wherein the flow channels (12, 14, 16, 18, 20) are jointly formed by a unique first channel housing part and a unique second channel housing part (22), wherein the first channel housing part simultaneously constitutes the valve housing (8).