25results about How to "Easy to filter" patented technology

The invention relates to a fence, in particular to an aquaculture fence. In order to solve the technical problems, the aquaculture fence which can save time and is beneficial for screening is provided. The aquaculture fence comprises an installation plate, supporting columns, a guide plate, first connecting plates, a first baffle, a second baffle and the like, wherein the supporting columns are installed on the left side and the right side of the top of the installation plate respectively, the tops of the two supporting columns are connected with the guide plate, a first strip-shaped opening with a guiding effect is formed in the top of the guide plate, a second strip-shaped opening is formed in the rear side of the guide plate and communicated with the first strip-shaped opening, and thetwo first connecting plates are connected between the two supporting columns. Through the effect of the second baffle and the second baffle, fish fry small in size can be screened and does not need tobe fished up by people or screened by people with naked eyes, and therefore screening can be convenient and time can be saved.

This utility model discloses a flexible cable connection device with a sealing structure, belonging to the technical field of cable connection devices. It includes an upper housing and a lower housing installed at the bottom of the upper housing. Both ends of the upper housing are fixedly connected to pressure rings, and a sealing gasket A is adhered to the inner surface of the pressure ring. When connecting two adjacent cables, the cables are first installed and fixed, then inserted into the interior of the lower housing. The upper housing is pressed down relative to the lower housing, and the upper housing is inserted into the mounting platform. The insertion end of the upper housing extends to the surface of the rubber frame. Positioning cylinders are symmetrically installed on the inner surface of the upper housing, and positioning posts are symmetrically installed on the inner surface of the lower housing. During insertion, the positioning posts and positioning cylinders are inserted into each other, thus the rubber frame improves the sealing performance at the connection between the upper and lower housings. The sealing gasket A of the pressure ring and the sealing gasket B of the support ring adhere to the outer surface of the cable, providing excellent sealing and good waterproof and seepage-proof performance.

The application discloses a microphone array sound pickup method, electronic equipment and computer readable storage medium. The sound pickup method comprises the following steps: fixed beam forming is performed on a voice signal received by a microphone array, and a beam forming direction of the microphone array is pointed to an estimated expected direction of arrival; blocking processing is performed on the processed voice signal, so that the voice signal from the expected direction of arrival is blocked, and only the voice signal from a non-expected direction of arrival is reserved; the processed signal is used as a reference signal, a first filter is used to filter out the signal from the non-expected direction of arrival and reserve the signal from the expected direction of arrival; and an update factor of the first filter is calculated according to the following formula (I), wherein the update factor of the first filter of the mth microphone channel is SNR f,d (ω, l) is Y f,d (ω, l) is a signal-to-noise ratio of Y f,d (ω, l) is a delay signal obtained by delaying the signal processed in the step S1, SNR m (ω, l) is a signal U m (ω, l) is a signal-to-noise ratio of Y. The application further improves voice quality.

The utility model relates to the technical field of bean curd production, and disclose a kind of suction equipment for bean curd production, including bearing table, the lower end of bearing table is fixedly arranged with support bottom mat, and one end of bearing table is fixedly arranged with anti-collision strip, and the upper end of bearing table is fixedly arranged with suction treatment box, and the upper end of suction treatment box is fixedly arranged with extension frame, and the inside of extension frame is fixedly arranged with storage tank, and one end of storage tank is movably arranged with movable disc, and one end of movable disc is fixedly arranged with movable vane.The suction equipment for bean curd production, by the improvement of production suction equipment, the suction treatment and grouting capacity of the production suction equipment are improved, in the actual use process of the production suction equipment, the bean curd raw materials can be suction filtered according to the needs, the bean curd raw materials are conveniently grouted, and the bean curd production effect of the suction equipment for bean curd production is improved.

This invention belongs to the field of biotechnology, specifically relating to the cassava transcription factor MeWRKY30 and its applications. This invention cloned the transcription factor gene of MeWRKY30 from cassava. Overexpression of this gene in cassava can improve the resistance of transgenic cassava plants to low-temperature and drought stress. The effects of qRT-PCR on cassava... MeWRKY30 Gene expression was significantly upregulated after drought and treatment with the plant hormone abscisic acid (ABA). After recovery from low temperature treatment, the malondialdehyde content of the overexpressing cassava lines decreased, wilting was reduced, root growth inhibition was lessened, and the number of cortical cells in the root tip meristem was significantly increased.

This invention provides a method for mutagenesis of *Aspergillus cristatus* and its application, belonging to the field of microbial technology. The mutagenesis method provided by this invention includes the following steps: first, pretreating *Aspergillus cristatus* suspension by mixing it with a compound enzyme solution; then culturing the pretreated *Aspergillus cristatus* in a culture medium supplemented with a mutagen; the compound enzyme solution consists of a cell-lysing enzyme solution and a β-glucanase solution; the mutagen includes ethyl methanesulfonate and / or diethyl sulfate. This invention can improve the efficiency of the mutagen entering the bacterial cells, thereby enhancing the mutagenesis effect; the mutant strains obtained by mutagenesis, compared to the original strain, exhibit more vigorous colony growth on plates, larger average diameter, denser hyphae, and / or better morphological stability. Furthermore, it can achieve ideal mutagenic selection pressure at lower mutagen concentrations and shorter treatment times, reducing sublethal damage, which is beneficial for the recovery and screening of mutant strains and improving the efficiency of mutagenesis experiments.

The utility model discloses an air filter cartridge structure of adjustable air intake and exhaust volume belongs to air purification technical field, including outer frame, one end fixed with adjusting filter mechanism of outer frame, adjusting filter mechanism includes equipment frame, the inside fixed circuit control board of equipment frame, one side electric connection of inside of circuit control board has hot formula air velocity transducer. This filter cartridge structure forms the regulation and control through the shaft stem and servo motor of one end connection of inner filter cartridge, can monitor the circulation air flow in the air purification equipment through hot formula air velocity transducer, can according to different wind speed sensing, control servo motor and adjust rotating inner filter cartridge, can form staggered and pasted according to the inner filter screen groove of inner filter cartridge outer wall and the outer filter screen groove of pasted outer filter cartridge, and then regulate and control the size size of inner filter screen groove and outer filter screen groove gap, form the regulation and control to air intake and exhaust volume, thereby avoid the sustained load under the low pollution environment, save filter material resource waste.

The utility model provides a kind of mixed and compost integrated device of biogas slurry preparation solid organic fertilizer, belong to the field of biogas fertilizer preparation production, including compost bin, the filter feeding assembly of being arranged on the surface of compost bin and the stirring material pile assembly of being arranged on the surface of compost bin, filter feeding assembly includes the box of being arranged on the top of compost bin, filter port is opened in one side inside box, feeding port is opened in other side inside box, pump body is detachably connected inside filter port, feeding port inside movably connected has plug, the utility model pump body works through water inlet pipe from outside and extracts biogas slurry, then biogas slurry is discharged into compost bin inside by water outlet pipe, when needing to carry out mixed compost, user carries out extraction by moving handle and plug from the aperture of being opened on the surface of box, it is convenient to pour the material of feeding port to compost bin, to carry out multiple import mixing, increase the overall usability.

This utility model discloses a mobile spray device for heat dissipation of soil-covered cables, including a housing, a water pump, and a spray pipe. Multiple spray nozzles are installed at the lower end of the spray pipe. A filter cylinder is fixedly connected to the upper left end of the housing, and a cover plate is provided at the upper end of the filter cylinder. A mounting mechanism for fixing the cover plate is symmetrically installed on the filter cylinder. A filter screen is installed at the lower end of the cover plate, and the filter screen is placed in the middle of the filter cylinder. The water pump is connected to both the filter cylinder and the spray pipe. Two connecting columns are symmetrically fixedly connected to the spray pipe. A lifting mechanism is installed between the connecting columns and the housing. This utility model, through the arrangement of the filter cylinder and filter screen, facilitates the filtration of the sprayed water, preventing impurities such as mud in the water from clogging the spray nozzles. Combined with the mounting mechanism, it facilitates the disassembly, cleaning, and replacement of the filter screen. The height of the spray nozzles can be adjusted by the lifting mechanism, thereby allowing the spray range to be adjusted according to needs.

The application provides a FIR low-pass digital filtering method for reducing resource consumption, which comprises the following steps: determining the filtering condition required when the filtering effects of the average filtering method and the FIR filtering method are consistent by comparing the filtering form of the average filtering method with the filtering form of the FIR filtering method; determining the filtering times according to the design parameters of the filtering effect; obtaining the filtering operation point number ratio according to the required filtering condition and the filtering times; filtering the to-be-filtered signal according to the filtering times by using the filtering operation point number ratio. The application uses the average filtering with twice optimal operation point number ratio continuously, can effectively inhibit the influence of various interference signals in the data acquisition process, improves the filtering effect, greatly reduces the resource consumption, can perform high-performance calculation under the condition of consuming extremely low calculation resource, and is convenient for designers to filter.

The application provides a tea raw material screening method for rolled tea, comprising the following steps: S1, providing a tea raw material, and performing simulation treatment on the tea raw material, wherein the simulation treatment is performed in a simulation box; a simulation cavity is formed in the simulation box, the simulation cavity has a structure of being narrow at the top and wide at the bottom, and the bottom of the simulation cavity is concave; a heating fan is arranged at the top of the simulation cavity, and a stirring assembly is arranged at the bottom of the simulation cavity; the simulation treatment comprises the following steps: placing the tea raw material in the simulation cavity, starting the heating fan, and running the stirring assembly to disperse and stir the tea raw material; S2, performing electronic tongue detection on the product obtained after the simulation treatment of the tea raw material; and taking the data obtained by the electronic tongue detection as the basis for screening the tea raw material. The screening method can evaluate the taste index of the tea raw material, and accurately screen the tea raw material in a simple and controllable manner.

The utility model belongs to the technical field of powder concentrator, especially involves a powder concentrator is with feeding screening device, including casing, feed inlet, discharge gate and material return, feed inlet is installed in the top of casing, discharge gate is installed in the bottom of casing, material return is installed in the right side of casing, the inside of casing is provided with screening device, and screening device includes vibration mechanism, dismounting mechanism and scattering mechanism, vibration mechanism sets up in the inside of casing, dismounting mechanism sets up in the front and back two sides of casing, scattering mechanism sets up in the inside upper end of casing. The powder concentrator is with feeding screening device, is set up vibration mechanism through the motor one drive shaft and cam rotation, makes the lobe intermittent and the filter screen bottom collision, makes the filter screen vibrate, thereby speeds up the screening of material, is set up scattering mechanism, when material enters the inside of casing, through scattering rod, the agglomerate is scattered, makes it become small granule, thereby facilitates the subsequent screening, improves screening accuracy and quality.

This utility model relates to the field of rapeseed oil production technology and discloses a rapeseed oil raw material screening device, including a screening barrel. The top of the screening barrel has a feeding ramp, and the lower interior of the screening barrel has a collection chamber. The bottom of the feeding ramp has a discharge port connected to the collection chamber. The upper inner wall of the collection chamber has a feeding port and a feeding channel. A spiral conveying assembly is installed inside the collection chamber to transport the rapeseed raw material to the feeding channel. In this utility model, a rotating stepped conveying platform is used to screen the rapeseed oil raw material. The suction of a fan absorbs fine and lightweight impurities from the rapeseed oil raw material. Finally, the screened rapeseed oil raw material is discharged from the outlet, making the screening process simpler.

This invention provides a method and system for mixing substances inside a magnetically controlled droplet. The method includes: adding a droplet containing the substance to be mixed onto a hydrophobic solid substrate infused with a magnetic fluid, causing the magnetic fluid to rapidly envelop the contacting droplet to form a magnetically responsive liquid shell; controlling the movement of the magnetically responsive liquid shell to drive the movement of the enveloped droplet, thereby accelerating the mixing of the substances inside the droplet. The system includes: a hydrophobic solid substrate and a magnetic fluid spread on the surface of the hydrophobic solid substrate. This invention, by causing the magnetically responsive shell enveloping the droplet to rotate around the droplet, generates shear flow at the two-phase interface, increasing the internal dynamics of the droplet and significantly accelerating the mixing process of the substances inside the droplet.

According to the device, a conveyor belt is arranged on a machine body in a penetrating mode, a partition plate is arranged on the upper surface of the conveyor belt, a vibration motor is arranged on the left side of the machine body, the output end of the vibration motor is fixedly connected with a flow guide frame, the flow guide frame is located above the partition plate, and an electric telescopic rod is fixedly connected into the machine body. An electric telescopic rod is arranged on the machine body, a C-shaped plate is fixedly connected to the output end of the electric telescopic rod, a sponge block is arranged on the lower surface of the C-shaped plate, a cleaning assembly and a screening assembly are arranged on the machine body, and two robots are arranged in the machine body and located on the two sides of the conveying belt correspondingly. The sedum aizoon is cleaned to remove soil and then screened, so that the appearance is clearer, screening is facilitated, improvement of subsequent seedling raising and transplanting uniformity is facilitated, meanwhile, the sedum aizoon can be limited, and displacement during cleaning is avoided.

This application relates to the field of fire hydrant valves and discloses a precision ductile iron casting for a stainless steel fire hydrant valve, comprising a fire hydrant valve body and a sludge discharge pipe. A control frame is rotatably mounted on the top of the fire hydrant valve body, and a threaded ring is welded to the bottom end of the sludge discharge pipe. A connecting cap is threadedly connected to the surface of the threaded ring, and the inner wall dimensions of the connecting cap are adapted to the surface dimensions of the threaded ring. A storage rack is fixedly mounted on the top of the connecting cap, and an inlet is provided at one end of the storage rack. The top of the sludge discharge pipe is welded to the bottom end of the fire hydrant valve body. This application uses a threaded ring connected to the bottom end of the fire hydrant valve body via a sludge discharge pipe, and a storage rack is mounted on the surface of the threaded ring via a connecting cap. An inlet is provided at one end of the storage rack to facilitate the separation of sludge in the water flow via the inlet. Furthermore, separating the sludge discharge pipe from the threaded ring facilitates the treatment of the sludge.

This invention discloses a tracer solution for displaying the internal flow field morphology of suspended droplets based on acoustic suspension and its preparation method, belonging to the field of flow field visualization technology. The method involves obtaining candidate solvents based on their performance parameters; determining a target solvent from the candidate solvents; obtaining candidate solutes based on the solubility and saturation concentration of the solute in the target solvent; obtaining the target solute from the candidate solutes based on the interfacial energy between the solute and solvent; dissolving the target solute in the target solvent to prepare a tracer solution for displaying the internal flow field morphology of suspended droplets; and suspending the tracer solution using ultrasonic suspension technology after preparation. This invention achieves convenient screening and preparation of tracer solutions for convenient visualization of the internal flow field of droplets, significantly improving observation efficiency and applicability.

This utility model discloses an automatic welding equipment for SMT production and processing, including a working base plate. A conveying mechanism is mounted on the working base plate, and a testing station, an auxiliary material loading station, and a welding station are sequentially arranged on the side of the conveying mechanism. The welding station includes a mounting base plate, on which a welding machine base plate is mounted. An ultrasonic welding assembly is mounted on the welding machine base plate. The mounting base plate is equipped with a first lifting cylinder adapted to the welding machine base plate and a second lifting cylinder adapted to the ultrasonic welding assembly. A lower mold welding head assembly adapted to the ultrasonic welding assembly is also mounted on the welding machine base plate. This utility model has a simple structure and can realize a series of operations such as automated workpiece detection, calibration, waste removal, loading, welding, and adjustment. Compared with single welding equipment on the market, it has more complete functions and a wider range of applications.

The application discloses a multi-stage screening device for flour processing and a working method thereof, which comprises a mounting rack, a flour milling machine is mounted on the mounting rack, a pre-processing sieve cylinder is mounted on the top of the mounting rack, a rotating disc is rotationally connected to the bottom of the inner side of the pre-processing sieve cylinder, two internally hollow stirring rods are fixedly connected to the top of the rotating disc, and two change processing assemblies for pre-milling and stirring are arranged on the inner side of the rotating disc; the processing rod is in a rotating state, the first screening area generates suction wind, the wheat can be crushed to pass through the sieve hole of the pre-processing sieve cylinder and enter the first screening area to be discharged into the flour milling machine for fine processing, and the extruded and sheet-shaped germ can be collected in the second screening area, so that the pretreatment of part of the wheat bran and germ impurities is realized before flour processing, fine milling and screening of the flour are facilitated, the quality of the produced flour is easy to control, and the working efficiency of the processed flour is improved.

The utility model discloses a kind of automatic cleaning device for gamma knife treatment head, it is related to gamma knife treatment technical field, including gamma knife main body, gamma knife main body side is provided with treatment bed, and the inside two sides of treatment bed are provided with sliding slot, sliding slot inside is provided with moving plate, and one end moving plate top is provided with treatment head body, gamma knife main body top is provided with mounting bracket, and the top of treatment head body is located the bottom of mounting bracket and is provided with telescopic cleaning tank, one end cleaning tank inside two sides and top are all provided with adjustable high-pressure cleaning nozzle, and the other end cleaning tank outside two sides are provided with drying mechanism, treatment head body below is located treatment bed and moving plate inside and is provided with multiple groups of drain hole, the utility model is good to meet complex treatment head cleaning demand, improve cleaning efficiency and effect, prolong the service life and maintenance period of equipment.

This utility model discloses a sintered colored sand mixing device for processing colored stone metal tiles, including a processing box with a feed inlet at the top center. A crushing mechanism is located inside the processing box, and a screening component is located below the crushing mechanism via a reciprocating assembly. A slot is formed on the side wall of the processing box, and electric push rods are equidistantly arranged within the slot. A lifting plate is fixed to the output end of the electric push rod, and a sealing plate is located below the lifting plate. A guide plate matching the screening component is located on the side wall of the processing box. A mixing component is located inside the processing box and is connected to the crushing mechanism via a synchronization assembly. A discharge port is located at the bottom of the processing box. This utility model facilitates the crushing of materials, and by using the synchronization assembly in conjunction with the mixing component, the mixing component can operate simultaneously with the crushing mechanism. Using the same drive source, it is relatively energy-efficient and also facilitates the mixing of screened materials, making subsequent production more convenient.

The application discloses a molecular marker of a white trait of a pepper at a green-ripe stage and a detection method thereof, and belongs to the field of crop molecular marker assisted breeding. The marker targets a key gene functional mutation site for controlling the trait, and a matching specific primer can identify the genotype through conventional PCR combined with electrophoresis. The application can complete accurate screening of the trait at a pepper seedling stage, the detection result is co-segregated with the target trait, is not interfered by environmental factors, is high in accuracy, is simple to operate, is suitable for high-throughput detection, and can be widely applied to molecular breeding, germplasm resource identification and the like of the white trait pepper, and greatly improves breeding efficiency.

This utility model relates to the field of sweet potato starch processing technology, and provides a starch filtration device for sweet potato starch processing production. The device includes a base plate, a support column fixedly installed on the top of the base plate, a support plate hinged to the support column, a spring fixedly installed on the support plate, a basin fixedly installed on the spring, and a filter screen for screening sweet potato starch fixedly installed on the inner wall of the basin. An electric push rod is hinged to the base plate, and the output rod of the electric push rod is hinged to the support plate. A vibration motor is fixedly installed at the bottom of the basin. A discharge pipe for discharging sweet potato starch is fixedly installed on the basin. A moving mechanism for moving bagged starch is mounted on the base plate. This solution solves the technical problem that screening bagged starch in the sweet potato starch production process is physically demanding and easily leads to worker fatigue.

This invention discloses a bifunctional engineered magnetotactic bacterium. The engineered magnetotactic bacterium is constructed using a recombinant PmamC-MamC-(Gly₄Ser)₃-MagLov fusion gene fragment to construct the expression plasmid pBBR1-MagLov-MamC. Using Magnetospirillum gryphiswaldense MSR-1 as a host, the recombinant expression plasmid pBBR1-MagLov-MamC is conjugated to obtain the bifunctional engineered magnetotactic bacterium MSR-1-MagLov capable of expressing the MagLov-MamC fusion protein. This invention also discloses the construction method and its applications. This invention overcomes the technical bias of exogenous proteins inhibiting magnetosome synthesis, achieving the integration of magnetotactic motility and magnetosensitive fluorescence.

This utility model discloses a soil sample collection device for environmental monitoring, belonging to the technical field of collection devices. It includes a collection frame for collecting soil, with a sieving mechanism beside the collection frame. The sieving mechanism includes a sieving box above the collection frame, an inlet pipe on the sieving box, a sieving plate inside the sieving box, and a cylinder for driving the sieving plate to slide. The bottom of the sieving box has an outlet, and the collection frame is located below the outlet. An installation groove is provided inside the sieving box, communicating with the outlet. The inlet pipe is also connected to the installation groove. The cylinder is located inside the sieving box, and a sliding plate is provided on the sieving plate, fixed to the output shaft of the cylinder. The sieving plate is slidably positioned within the installation groove, below the inlet pipe. This application has the effect of saving manpower and improving the efficiency of soil sample collection.