542results about How to "Increase loss" patented technology

The invention belongs to the technical field of back contact cells, and particularly relates to a back contact cell with a passivated specific light receiving surface and a preparation method and application thereof.The back contact cell comprises a substrate, the substrate is provided with a backlight surface and a light receiving surface, the light receiving surface of the substrate is sequentially provided with a first tunneling oxide layer, a doped amorphous silicon layer and a silicon medium anti-reflection layer, the thickness of the first tunneling oxide layer is 0.2-1.5 nm, and the thickness of the doped amorphous silicon layer is 0.2-1.5 nm; the doped amorphous silicon layer is doped with an oxygen element and a hydrogen element, the first tunneling oxide layer is doped with a hydrogen element, and the content of the hydrogen element close to the side of the doped amorphous silicon layer in the first tunneling oxide layer is greater than the content of the hydrogen element close to the side of the substrate. According to the invention, good passivation effect and optical loss can be taken into account, and the passivation effect is enhanced, so that the passivation effect and current of the battery are improved, the efficiency of the battery is improved, and the equipment cost is low.

The invention relates to the technical field of air purification and discloses an air handling unit which comprises an air return unit, a first fan is arranged in an inner cavity of the air return unit, a fresh air unit is fixedly installed on the lower surface of the air return unit, and a second fan is arranged in an inner cavity of the fresh air unit. By means of the filtering assembly, a filtering net can be automatically cleaned when the filter is blocked, dust can be collected in a centralized mode during cleaning, secondary blocking of the collected dust can be reduced, meanwhile, the filter is limited in a flexible fixing mode, and therefore the risk that the filter is damaged due to vibration is reduced, and the service life of the filter is prolonged. The filter can be quickly disassembled and assembled through the flexible fixing mechanism, the filter can be conveniently maintained, and the pressure intensity change in the air handling unit can be timely and accurately observed through the pressure detection unit, so that the air handling unit can be timely maintained when the pressure intensity of the air handling unit is changed.

The invention relates to a low-loss corner-lifting and movement tearing cooperative type film tearing process of a screen display glass protective film. The process comprises the following steps: S1, tearing a film on an A surface; s2, transferring the screen display glass; and S3, tearing the film on the surface B. On one hand, in single-face film tearing, based on cooperation of the film tearing clamping jaw, the rolling wheel and the air nozzle, angle lifting is completed while the film tearing angle adhesive force is kept larger than the protective film tearing force, the damage and fracture rate of an adhesive tape and a corner is reduced, the high angle lifting success rate is achieved, meanwhile, through movement cooperation of the screen display glass and the film tearing clamping jaw, the film tearing difficulty is low, control is easy, and the film tearing efficiency is improved. The integrity and continuity of film tearing are high; on the other hand, overturning of the screen display glass is not needed in double-sided film tearing, transferring of the screen display glass is achieved in the protective film tearing process, the accidental friction rate in the glass overturning process is reduced, the structure is optimized, the layout space is greatly reduced, the equipment is miniaturized, and the double-sided film tearing efficiency of the equipment for treating the screen display glass is also improved.

The invention relates to a compact three-phase superconductive air-core reactor which comprises a vacuum heat insulation container, a cooling medium is contained in the vacuum heat insulation container, the vacuum heat insulation container comprises a vacuum heat insulation shell and a vacuum heat insulation cover, and a plurality of hanging rods extending into the vacuum heat insulation shell are arranged on the vacuum heat insulation cover; the three-phase superconducting magnet is immersed in the cooling medium, the three-phase superconducting magnet is formed by vertically stacking three single-phase superconducting magnets which sleeve the plurality of suspenders at intervals, and each single-phase superconducting magnet is of an iron-core-free hollow structure; the three low-temperature sleeve assemblies correspond to the single-phase superconducting magnets one to one, each low-temperature sleeve assembly comprises two low-temperature sleeves, the low-temperature sleeves partially extend into the vacuum heat insulation shell from the vacuum heat insulation cover, and the ends, located outside the vacuum heat insulation shell, of the low-temperature sleeves are connected into a power grid; and one end in the vacuum heat insulation shell is connected with the corresponding single-phase superconducting magnet through a current lead. The application scene of the reactor is expanded, and the problem that reactive compensation of a power grid is insufficient is effectively solved.

The invention provides a polyvinylidene fluoride-based nanofiber yarn wave-absorbing fabric as well as a preparation method and application thereof, and belongs to the technical field of preparation of wave-absorbing composite materials. The preparation method comprises the following steps: preparing nanofiber yarns or nanofiber core-spun yarns by adopting a conjugate electrostatic spinning technology, directly adding a conductive substance into a spinning solution to form conductive nanofibers, and further coating the nanofiber yarns or the nanofiber core-spun yarns with a PDA shell layer to improve the wear resistance and reduce silver nanoparticles in situ; finally, the yarns are woven into fabric through a weaving or knitting technology, and the fabric is applied to the fields of buildings, electromagnetic protective clothing, flexible electronics and the like. Compared with an existing microwave absorbing material, the fabric-based material is light in weight and good in mechanical flexibility and processability. Fabrics formed of nanofiber yarns or nanofiber core spun yarns facilitate the induction of interfacial polarization and multiple reflections, and can deeply design material properties. The material provided by the invention has better wear resistance, wearability and microwave absorption performance, and is suitable for actual production and application.

The invention discloses a construction process and a driving mechanism of an artificial muscle massager imitating a squid suction cup structure. An artificial muscle device imitating the squid suction cup structure is constructed through four main steps: firstly, a squid suction cup imitating electric actuating film mold is manufactured by adopting a 3D printing and evanescent mode-like casting technology; secondly, dissolving carrageenan and sodium alginate, and then adding the multiwalled carbon nanotubes to prepare an electrode membrane solution; then, polyacrylamide is added, carrageenan and sodium alginate are mixed, and an electrically-actuated membrane solution with high mechanical performance is prepared; finally, the dried and formed electric actuating film and the electrode film are attached layer by layer, the artificial muscle device of a four-layer structure is formed, the device achieves the deflection massage effect under stimulation of external direct current, the process is simple and controllable, and the device is efficient and environmentally friendly.

The invention discloses a speaking digital human generation method based on a large model learnable text latent code, which comprises the following steps: acquiring a plurality of face voice videos according to actual needs and extracting training samples to form a training sample set, each training sample comprising a reference video and a corresponding Mel spectrogram sequence and mouth reference image; constructing a general speaking digital human generation model based on learnable text latent codes, and training by adopting the training sample set; and when a speaking digital person video needs to be generated, framing is carried out on to-be-generated voice data, a Mel spectrogram sequence is extracted, a mouth reference image and a reference video are set according to actual conditions, the reference image and the reference video are input into the trained general speaking digital person generation model together, and the speaking digital person video corresponding to the to-be-generated voice data is generated. According to the method, robust text latent codes are continuously learned from mouth reference images of different speakers, the method is used for guiding the synthesis process of a general speaking digital human video, and the quality of a speaking digital human generation model is improved.

The invention discloses an ultra-wideband carbon / boron doped high-entropy alloy wave-absorbing material which is prepared by adjusting Fe and Ni elements, adding Si and Al elements and doping a small amount of C or B. The specific component of the wave-absorbing material is (FeaCobSicAldNie) 100-xMx. In addition, the invention also discloses a preparation method of the wave-absorbing material, and the preparation method comprises the following steps: 1, high-entropy alloy smelting; 2, preparing high-entropy alloy spherical powder; 3, carrying out flaky treatment; and 4, stress relief annealing. On the basis of FeCoNi medium-entropy alloy, the content of the Fe element with low cost is increased, the content of the Ni element with high cost is reduced, the Si element and the Al element are added at the same time, then a small amount of non-metal C and B elements are doped to serve as interstitial atoms, lattice distortion is increased, the wave-absorbing performance and corrosion resistance are improved, and the ultra-wideband carbon / boron doped high-entropy alloy wave-absorbing material is obtained.

According to the thin-layer sound absorption superstructure composite acoustic enclosure and the using method, the acoustic enclosure is composed of the cover plate, the conformal frame, the thin-layer sound absorption superstructures and the porous sound absorption materials, the variety of the thin-layer sound absorption superstructures is not limited to one, and the broadband noise reduction effect can be achieved through the parallel superposition design of the thin-layer sound absorption superstructures and the porous sound absorption materials. Wherein the thin-layer sound absorption superstructure can absorb noise in different frequency ranges of medium and low frequency bands, the porous sound absorption material can absorb noise in medium and high frequency bands, and the working bandwidth of the composite acoustic shield after parallel connection and superposition can cover the low, medium and high wide frequency bands. The thin-layer sound absorption superstructure composite acoustic shield further has the advantages of being high in space utilization rate, high in space adaptability, small in thickness, low in surface density and high in material replaceability. Compared with an existing sound insulation cover, on the premise that the thickness is small and the surface density is low, the working frequency band is wider, the sound insulation effect is better, and the sound insulation cover has wide application prospects in noise control of various mechanical and electrical products.

The invention discloses a new energy automobile charging management system, and aims to improve the charging efficiency, prolong the service life of a battery and improve the user experience. The system comprises a battery monitoring module, a charging mode management module, an intelligent scheduling module, a remote control module, a safety protection module, a big data analysis module and a billing management module. The battery monitoring module collects data such as battery voltage, current and temperature in real time; the charging mode management module dynamically selects a fast, standard or slow charging mode according to the battery state and the user demand; the intelligent scheduling module optimizes a multi-vehicle charging sequence to realize reasonable resource allocation; the safety protection module provides overvoltage, overcurrent and temperature protection to ensure charging safety; the remote control module enables a user to monitor and adjust the charging state in real time. According to the invention, through intelligent charging management, resource configuration optimization, charging efficiency improvement, safety risk reduction in the charging process and battery life prolonging, convenient charging experience is provided for users.

The invention provides a grounding system of a long-wave transmitting antenna, and relates to the technical field of grounding systems. The system comprises a top wire ground screen, a high-voltage feeder ground screen, a tuning pavilion ground screen, an iron tower ground screen, a grounding well and a ground screen outer edge bus bar, the loss resistance of a high-voltage and high-intensity magnetic field in a grounding system is reduced aiming at the problem of the density of current borne by a top line, a high-voltage feeder line and a tuning booth, so that the grounding loss resistance is reduced to a great extent. In addition, aiming at the problem of large current density of the tuning booth, the ground net of the tuning booth is arranged by utilizing a plurality of dense and radially laid wires, so that the loss of the ground net is improved. The problem that grounding loss resistance is large due to the fact that a grounding system is designed through a large-scale dense ground net at present is solved.

The invention discloses a preparation method of a metalized vertical glass through hole. The preparation method comprises the following steps: modifying a target area of a glass substrate by adopting a laser irradiation method to form a denatured area; forming a first metal layer on the glass substrate in a sputtering manner; ablating the first metal layer corresponding to the denatured region by adopting an ultraviolet radiation method so as to expose the denatured region; etching the denaturation region by using a corrosive liquid to form a first blind hole; cleaning and drying the glass substrate; forming a second metal layer on the glass substrate in a sputtering manner; ablating the second metal layer at the bottom of the first blind hole by adopting an ultraviolet radiation method; etching the first blind hole by using a corrosive liquid to form a second blind hole; cleaning and drying the glass substrate; and repeating the steps (6)-(9) to obtain the metalized vertical glass through hole. According to the preparation method, the glass through hole with high depth-diameter ratio and good perpendicularity can be prepared, and meanwhile, the metal layer can be stably and uniformly attached to the inner wall of the glass through hole.

The invention discloses a W-band coupling multi-band filter parameter optimization method, which is characterized in that each step from the determination of an ideal characteristic function to the adjustment of a final performance index has a clear guidance and optimization target through a systematic design process, so that the design efficiency is improved, and the design cost is reduced. And the frequency response characteristic of the filter can accurately meet the expectation. The design indexes of the filter, such as center frequency and bandwidth, are determined, so that the design process is more accurate, and the filter can meet the requirements of a specific communication system. And the accurate coupling matrix is automatically generated by utilizing the coupling matrix comprehensive software, so that the design efficiency and accuracy are improved. By converting the coupling matrix into specific physical design parameters, detailed guidance is provided for actual manufacturing of the filter, and seamless joint from design to manufacturing is ensured. The resonant frequency of the resonant cavity is calculated to ensure that the filter works at the predetermined frequency, and the selectivity and insertion loss performance of the filter are improved.

The invention relates to the technical field of battery heat dissipation devices, and discloses a battery heat dissipation method, a battery heat dissipation device and a battery pack, the battery heat dissipation device comprises a shell, a sealing cover is arranged on the inner wall of the shell, and a water cooling plate is fixedly assembled at the top of the sealing cover. By means of the shell, the sealing cover, the water cooling plate and the fan structure, in the operation process of the device, when the temperature of the body rises rapidly due to rapid rising, air pressure can be increased through the internal temperature, a piston is pushed to move, a second reset spring is compressed, and the space where one body is located is communicated with the space where the other body is located; meanwhile, a water cooling plate is controlled to operate through a controller, energy loss caused by continuous operation of water cooling in the normal operation state of the body is prevented from being increased, a movable plate is pushed to conduct bump detection operation on the body in cooperation with movement of a piston, and then the operation temperature of the body is accurately monitored, and the bump condition of the body is detected; therefore, a user can maintain the device and the body in time.

Provided is a glass having a low dielectric loss tangent in a high-frequency region and excellent chemical resistance and moisture resistance. A glass having, in mol% on the basis of oxides, 68% or more of SiO2, 0.1-8% of Al2O3, 88% or more of [SiO2] + [B2O3], 27% or less of [B2O3]-([RO] + [R2O]-[Al2O3]), a relative dielectric constant of 4.5 or less at 25 DEG C and a frequency of 10 GHz, a dielectric loss tangent of 0.005 or less at 25 DEG C and a frequency of 10 GHz, [Delta] Abs-OH of 4.0 or less, 0.1-4% of SrO, a total content (RO) of MgO, CaO, SrO and BaO of more than 0% and 6% or less, and a total content (R2O) of Li2O, Na2O and K2O of 0-1%, [Al2O3]-[RO] is-3% or more and less than 8%, [Al2O3] * [RO] is greater than 0 and 30 or less, [MgO] + [CaO] is 0.1-5.9%, and [MgO] / ([MgO] + [Al2O3]) is 0-0.45.

The invention provides a stator core, a permanent magnet synchronous motor, a compressor and an air conditioner, and the stator core comprises a stator yoke ring, and the radial inner circumferential wall of the stator yoke ring is uniformly provided with a plurality of stator teeth at intervals in the circumferential direction. Each stator tooth comprises a tooth boot and a connecting column connected between the tooth boot and the stator yoke ring, and a stator slot is formed between two adjacent stator teeth; extending lines, facing one side of the circumferential wall of the radial inner ring, of the side walls of two circumferential tooth shoes close to each other of two adjacent stator teeth divide the stator groove into a middle winding groove in the middle and side winding grooves located in the two circumferential sides of the middle winding groove, the groove area of the middle winding groove is S1, and the groove area of the side winding grooves is S2. The groove area of each side winding groove is S2, and S1 / S2 is larger than 0 and smaller than or equal to 0.537. The invention can avoid the reduction of the effective slot area S2 of the stator, the reduction of the number of windings and the reduction of the counter electromotive force of the motor caused by the overlarge area S1 of the middle winding slot in the stator core.

The invention discloses a band elimination filter based on a printed ridge gap waveguide. The band elimination filter comprises a bottom dielectric substrate; a periodic mushroom unit; a metal top plate; the microstrip line transmission line is placed on the upper surface of the bottom dielectric substrate; the periodic mushroom units are uniformly arranged on the two sides of the feed network, M columns and N rows are respectively arranged on the left and right sides in the wide edge direction of the dielectric substrate, M and N are integers, M is greater than or equal to 2, and N is greater than or equal to 5. The energy in the band elimination filter is transmitted in the air gap, so that the dielectric loss can be effectively reduced, the transmission efficiency is improved, especially in a millimeter wave frequency band, the structure is simple, the processing difficulty is low, and the miniaturization and high-efficiency design of a millimeter wave system can be realized.

The invention discloses an unsupervised anomaly detection method for time series data, and relates to the technical field of anomaly detection of the time series data, which comprises the following steps of: filling a current null value by using an average value of a forward value and a backward value of the current null value data, and performing data normalization processing on numeric data in a data set. The method comprises the following steps: normalizing data to standard normal distribution with a mean value of 0 and a standard deviation of 1, and separating a training set and a test set from a given time sequence data set; according to the unsupervised anomaly detection method for the time series data, potential representation is performed on the data through a beta-VAE encoder, a long-term and short-term memory network module is adopted to estimate the long-term correlation of the potential representation, the forward and backward dependency relationship of the data is captured, and time series prediction is performed on the data. And finally, through average fusion of prediction results and reconstruction of a beta-VAE decoder, a reconstruction error is calculated to detect time sequence abnormity. The method has excellent anomaly detection performance on a plurality of public time series data sets.

The invention discloses an oblique flow impeller, a fan and ventilation equipment, the oblique flow impeller comprises a bottom plate, a top plate and a plurality of blades, and the bottom plate is used for being connected with a driving motor; the top plate is provided with an air inlet; an air inlet is formed in the top plate, the multiple blades are connected between the bottom plate and the top plate and arranged around the axis of the air inlet, an air outlet is formed between the bottom plate and the top plate, in the axial direction of the air inlet, the diameters of circumferences defined by the blades are different, and the outer diameter of the bottom plate is smaller than that of the top plate. According to the technical scheme, efficiency can be improved, and noise is reduced.

The invention relates to the technical field of reactive compensation, in particular to a reactive compensation control method and device for a weak power grid, and the method comprises the steps: carrying out the transient voltage monitoring of a plurality of monitoring nodes in a target weak power grid through transient voltage monitoring equipment, so as to obtain the transient voltage of the plurality of monitoring nodes, calculating a transient voltage stability index of the monitoring node based on the transient voltage of the monitoring node; and comparing the transient voltage stability index of the monitoring node with a preset stability threshold, and if the transient voltage stability index of the monitoring node is lower than the preset stability threshold, constructing a first coordination control model of the monitoring node. By monitoring the transient voltage stability index of the node and calculating and adjusting the compensation scheme according to the real-time data, the voltage stability of each node in the weak power grid can be effectively maintained, so that potential damage to equipment and users caused by voltage fluctuation can be avoided.

The invention provides a multi-element graded composite hollow microsphere wave-absorbing agent as well as a preparation method and application thereof. The multi-element graded composite hollow microsphere is composed of a hollow core and a composite spherical shell, wherein the hollow inner core is an air cavity, and the composite spherical shell is composed of porous amorphous carbon serving as a continuous phase and carbon nanohorn and magnetic metal composite particles serving as a dispersed phase. According to the scheme, the hollow core of the multi-element graded composite hollow microsphere is the air cavity, the density is low, and electromagnetic waves can be induced to enter the hollow cavity for multi-reflection; the composite spherical shell is composed of porous amorphous carbon serving as a continuous phase and carbon nanohorn-magnetic metal composite particles serving as a dispersed phase, tiny pores in the amorphous carbon can provide more interface polarization, and meanwhile, the amorphous carbon and the carbon nanohorn-magnetic metal composite particles can form a multi-element heterogeneous interface on the surface of the composite spherical shell; through a multi-interface effect and a multi-loss mechanism among the carbon nanohorn, the magnetic metal and the amorphous carbon, the electromagnetic wave loss is effectively enhanced and increased, and the electromagnetic wave absorption capability is enhanced.

The invention relates to a high-voltage-withstanding integrally-formed inductor and a preparation method thereof.The high-voltage-withstanding integrally-formed inductor comprises a magnet and a winding, the magnet is prepared from iron-based nanocrystalline and composite powder, and the iron-based nanocrystalline comprises, by weight, 10-15% of cobalt, 7-15% of nickel, 1-3.5% of manganese, 3-6% of silicon, 0.3-1% of copper and the balance iron; the composite powder comprises any one or a mixture of more of carbonyl iron, iron-silicon-chromium and iron-silicon-aluminum. The method has the effect of improving the quality of an inductor product.

The invention belongs to the technical field of filters, and relates to a high-roll-off rectangular micro coaxial line low-pass filter which comprises a rectangular micro coaxial line. The two rectangular micro coaxial line-coplanar waveguide transition structures are located at the two ends of the rectangular micro coaxial line respectively to form an input port and an output port which are used for being connected with external elements. The loading structure based on the stepped impedance open-circuit branch knot and the defected ground loading structure are positioned in the middle of the rectangular micro coaxial line; the loading structure based on the stepped impedance open-circuit branches comprises a plurality of open-circuit branches which are uniformly distributed on the two sides of the rectangular micro coaxial line and are in a mirror image arrangement state by taking the center line of the rectangular micro coaxial line as a reference line, and the lengths of the open-circuit branches are gradually reduced from the middle to the two sides; the defected ground loading structure comprises a plurality of defected grounds, each defected ground is correspondingly arranged between two adjacent open circuit branches, and the lengths of the plurality of defected grounds are gradually reduced from the middle to the two sides. The low-loss and high-suppression band-pass filter has the advantages of being low in loss, high in roll-off, high in suppression degree, wide in stop band and good in transmission performance.

The invention relates to the technical field of environment-friendly cabinets, and discloses an environment-friendly cabinet which comprises an environment-friendly cabinet body, and an external cable connecting system and a control system are arranged in the environment-friendly cabinet body. The external cable connection system is connected with an external cable and a controller of the environment-friendly cabinet body and comprises an integrated guide plate. The integrated guide plate is connected with a high-voltage switch of the environment-friendly cabinet body, and an independent mounting cavity and a binding post are arranged on the integrated guide plate; the binding posts are respectively positioned in the mounting cavity and are connected with the integrated guide plate and the binding posts; connecting units are respectively arranged in the mounting cavities; the connecting unit comprises a connecting module and a sensing module, the connecting module sleeves the external cable, and the sensing module is located between the mounting cavity and the connecting module and is connected with the control system. According to the invention, the connection module is arranged at the connection part of the external cable and the connection column, and the connection module deforms along with the temperature of the connection part; and the induction module is triggered to make corresponding actions and send a signal to the processing module, so that a fault line can be found at the first time to realize rapid repair.

The invention discloses a viscosity-reducing fast-dispersing polycarboxylate superplasticizer for high-strength concrete and a preparation method thereof, and relates to the technical field of polycarboxylate superplasticizers. The viscosity-reducing fast-dispersing polycarboxylic acid water reducer for the high-strength concrete comprises the following components in parts by weight: 400 parts of unsaturated polyether macromonomer, 20-40 parts of unsaturated acid monomer and 10-20 parts of unsaturated functional monomer. The invention also provides a preparation method of the polycarboxylate superplasticizer. The water reducer can reduce the viscosity of high-strength concrete, improve the dispersing performance of the concrete and shorten the mixing time, so that the problems of high plastic viscosity and the like of the concrete are solved under the condition of not reducing other performances such as the strength of the concrete.

The invention provides a preparation method of carbon-loaded MOF (Metal Organic Framework) derivative aerogel. The preparation method comprises the following steps: S1, preparing ZIF-67 with a rhombic dodecahedron structure; s2, preparing cellulose aerogel; s3, preparing a ZIF-67 at cellulose compound by using the ZIF-67 with the rhombic dodecahedron structure and the cellulose aerogel; s4, the ZIF-67 at cellulose compound is carbonized, and the carbon-loaded MOF derivative aerogel is obtained. The problems that in the prior art, a wave-absorbing material is poor in performance, does not have good heat insulation performance, and is high in raw material cost are solved.

The invention discloses a brassica rapa alkali extract with anti-hypoxia activity as well as a preparation method and application of the brassica rapa alkali extract. The method comprises the following steps: by taking brassica rapa tuberous roots as a raw material, rinsing, slicing, drying, crushing, extracting with a food-grade calcium oxide alkaline solution, carrying out centrifugal separation to obtain supernate, and carrying out spray drying on the supernate to obtain the brassica rapa alkali extract. The method is easy to operate, low in cost and high in extraction rate, starch and crude fiber auxiliary components in the brassica rapa tubers can be removed to a large extent, the most important components with health-care functions of brassica rapa are reserved, and the biological activity of nutritional components of brassica rapa is kept. Results of evaluation and biochemical index determination of a normal-pressure closed experiment and a sodium nitrite poisoning experiment show that the brassica rapa alkali extract can remarkably prolong the survival time of mice, improve the activity of superoxide dismutase in the mice and reduce the content of malondialdehyde, and shows a relatively good hypoxia tolerance effect. The alkali extract can be used for developing hypoxia-resistant functional foods such as tabletted candies and biscuits, and has a wide application prospect.

The invention discloses an agricultural product image quality enhancement method based on a visual large model. The method comprises the following steps: S1, acquiring an original agricultural product image data set of agricultural products during picking and transportation; s2, inputting the original agricultural product image data set of the agricultural product into a pre-trained large-scale visual model; s3, carrying out transfer learning fine tuning on the pre-trained large-scale visual model; s4, processing the original agricultural product image data set of the agricultural product by using the fine-tuned large-scale visual model; s5, using a super-resolution reconstruction algorithm to restore the detail part of the agricultural product image; s6, based on the multi-task processing capability of the large-scale visual model, executing a bureau partial region enhancement strategy on the agricultural product images of different agricultural product categories; and S7, outputting the finally enhanced agricultural product image. According to the method, surface details and texture information of agricultural products are clearer, and an accurate data basis is provided for quality detection and identification.

The invention discloses a processing method of frying oil. The processing method comprises the following steps: providing the frying oil; detecting the acid value of the frying oil and / or the content of polar components; according to the acid value of the frying oil and / or the content of the polar components, providing an adsorbent with matched weight and corresponding proportion to treat the frying oil to obtain qualified frying oil, the acid value of the qualified frying oil is less than or equal to 0.5 mg / g, and the content of the polar components of the qualified frying oil is less than or equal to 2wt%. The frying oil treatment method provided by the invention overcomes the defects of long frying oil treatment time, large oil filter powder addition amount, large frying oil loss, high processing cost and the like in the existing frying oil treatment, and can realize accurate addition of the adsorbent by improving the frying oil treatment method, thereby saving the adsorbent dosage, avoiding large oil loss, and improving the frying oil treatment efficiency. Meanwhile, the color and luster of oil for frying can be reduced.

The invention discloses a circularly polarized light beam splitter based on a spiral double-core anti-resonance hollow-core optical fiber, a cladding of the circularly polarized light beam splitter comprises six circular nested tubes and two elliptical nested tubes dividing the interior of the optical fiber into two symmetrical fiber cores, and when light is propagated in one fiber core, the light is coupled to the other fiber core mainly through gaps of the elliptical tubes; meanwhile, the optical fiber is designed into a double-core spiral chiral structure along the light transmission direction, so that four super-mode fundamental modes of the optical fiber are changed into circular polarization modes, namely a left circular polarization odd mode and a coupling mode and a right circular polarization odd mode and an even mode; afterwards, the effective refractive indexes of two odd-even modes of different polarization are adjusted by optimizing optical fiber structure parameters, so that a proper mode coupling length is obtained, and a good beam splitting effect on circular polarization is achieved. And finally, by adjusting the size of the nested inner tube, the coupling of a fiber core high-order mode and a cladding mode is increased, so that the high-order mode limiting loss is increased, and the single-mode performance of the optical fiber is ensured.