3291results about How to "Reduce leakage" patented technology

Tailored doping of barrier layers enables balancing of the radiative recombination among the multiple-quantum-wells in III-Nitride light-emitting diodes. This tailored doping enables more symmetric carrier transport and uniform carrier distribution which help to reduce electron leakage and thus reduce the efficiency droop in high-power III-Nitride LEDs. Mitigation of the efficiency droop in III-Nitride LEDs may enable the pervasive market penetration of solid-state-lighting technologies in high-power lighting and illumination.

The invention belongs to the technical field of data security, and discloses a data management method based on a data resource security identification level, and the method achieves the automatic and intelligent decision making: achieves the data classification and the automatic identification of the security level through a machine learning and deep learning model, remarkably reduces the manual intervention, and improves the efficiency and accuracy. And dynamic real-time performance: in combination with a risk assessment model, the system can detect abnormal behaviors in real time and dynamically adjust a security policy in a data flow process, so as to ensure that the sensitive data is properly protected in different scenes. And security and compliance: a log auditing module ensures the traceability of all data operations, improves the response capability to potential risks through an anomaly detection algorithm, and provides effective compliance guarantee for data security governance. And the system can be compatible with various data sources, supports configuration and execution of various security policies, and is suitable for data security management requirements of different industries (such as finance and medical treatment).

The invention provides a database adaptive migration method and system based on a credential environment, and relates to the technical field of data processing.The method comprises the steps that an intelligent migration model is used for analyzing the structure, including a table structure, index configuration, constraint conditions and data types, of a source database, data size distribution is calculated, and a source database structure feature result is generated; according to a source database structure feature result, automatically selecting and configuring a target database type, adjusting environment parameters of a target database, and generating target database configuration information; according to the structure of a source database and configuration information of a target database, a data mapping rule is automatically established by utilizing an intelligent migration model, and the data mapping rule comprises automatic correspondence of table names and field names, automatic conversion of data types, and an automatic migration scheme of indexes and constraints. According to the method, automatic and intelligent migration from the source database to the target database is realized through the intelligent migration model, the performance is automatically optimized, the migration report is generated, and the migration efficiency and quality are improved.

The invention relates to the technical field of data supervision, in particular to a data security protection supervision system, which comprises an access monitoring module, a behavior abnormity monitoring module, a security configuration module and a data risk management module, and is characterized in that based on user access behavior data, access frequency and security level information are collected, and user behavior characteristics are automatically extracted; an access control snapshot is obtained. According to the method, through dynamic permission configuration and real-time abnormal activity monitoring, data access safety is remarkably improved, user behavior characteristics are automatically extracted, behavior deviation is analyzed, quick response to potential risks is ensured, and through the continuously-updated safety strategy and risk assessment, the safety of data access is greatly improved. The security measures are allowed to timely adapt to the constantly changing threat environment, and through detailed risk management, the processing speed and accuracy are improved, so that the data supervision is more efficient, the possibility of data leakage and abuse is reduced, and the flexibility and reliability of the system in the aspect of protecting data privacy and integrity are ensured.

The invention discloses a security protection method and system for an information management system and a storage medium, and relates to the technical field of security protection.During operation of the system, when a user logs in or carries out sensitive operation, multiple identity verifications are carried out, an identity verification coefficient AC is obtained through calculation, various security parameters in the system are collected and updated in real time, and the security protection efficiency is improved. A high-strength encryption algorithm is applied to data to be transmitted, an encrypted data packet is generated, a transmission encryption coefficient EC is obtained through calculation, corresponding access permissions are set for different data based on user roles, identities and access content, an abnormal monitoring coefficient ADC is obtained, and a comprehensive safety coefficient SEC is obtained through calculation according to an identity verification coefficient AC, the transmission encryption coefficient EC and the abnormal monitoring coefficient ADC. The overall safety of the system is dynamically evaluated, abnormal behaviors are recognized and logs are recorded by comparing the comprehensive safety coefficient SEC with a preset threshold value, and when the system detects an abnormal access mode, a safety alarm is triggered and countermeasures are taken.

The invention relates to the technical field of metal bearings, in particular to a reinforced liquid metal sliding bearing. The enhanced liquid metal sliding bearing comprises a rotor, a stator and liquid metal filled in an assembling gap between the rotor and the stator. The fixed positions of the rotor and the stator are provided with a spiral groove structure, a textured microstructure, an infiltration coating and a sealing coating. By adopting the enhanced liquid metal sliding bearing provided by the invention, the wettability and the wear resistance of a bearing rotating pair can be improved, and the problems of coating falling, wear, poor lubrication and the like of the enhanced liquid metal sliding bearing in a high-vacuum, high-temperature, high-pressure, high-speed and high-load use environment are effectively solved. High-pressure sealing is formed on the gaps between the stator and the rotor and between the limiting rings of the stator and the rotor, the liquid metal is kept in the bearing, the assembled bearing does not need a vacuum environment in the transfer process, meanwhile, external gas is prevented from entering the bearing structure, and the possibility that the liquid metal leaks or gets stuck is reduced.

The invention relates to the field of group quality management, in particular to a group quality management system and method based on a dynamic data source. Comprising a data source management module, a quality data acquisition module, a quality data storage and management module, a quality data analysis and statistics module, a quality control and decision support module, a user management and authority control module and a system setting and management module which are connected through data interfaces, the data flow, the use frequency and the updating condition are monitored, and an early warning mechanism for data source connection abnormity, data access timeout and data conflict is arranged. According to the method, data integration and sharing can be improved, the accuracy of data quality is improved, user experience is improved, and safety is enhanced. According to the method, quality abnormity and fluctuation can be quickly and accurately found, targeted control measures are taken in time, quality problems are restrained in the bud state, and defective products and waste products are effectively reduced.

The invention discloses a hydraulic system and equipment for testing a hydraulic valve, and belongs to the technical field of hydraulic systems. An oil inlet of the hydraulic pump is connected with the oil tank; the tested valve comprises a plurality of inlets and outlets; one oil way of an oil outlet of the hydraulic pump is connected with the pressure regulating oil way, and the other oil way is connected with an oil inlet of the cartridge check valve; the pressure adjusting oil way adjusts the oil outlet pressure of the hydraulic pump; one oil way inserted into the oil outlet of the one-way valve is connected with a control oil way; the control oil way is used for adjusting the on-off and pressure of control oil of the tested valve; the other oil way is connected with an oil inlet of a proportional speed regulating valve, an oil outlet of the proportional speed regulating valve is connected with an oil inlet of a plug-in mounting type direction valve group, an oil outlet of the plug-in mounting type direction valve group is connected with an inlet of a tested valve, and a control cavity of the plug-in mounting type direction valve group is connected with an electromagnetic directional valve; an outlet of the tested valve is connected with the hydraulic cylinder and the throttling oil way. The hydraulic valve testing device can be suitable for testing high-pressure environments of various types of hydraulic valves.

The utility model discloses a corrosion-resistant metal lining socket type multilayer pipe, which belongs to the technical field of pipes and comprises an inner pipe, a middle layer and an outer pipe which are sequentially sleeved from inside to outside, steps and / or grooves are arranged on the inner wall of a socket end, and the inner pipe, the middle layer and the outer pipe are adhered to form the pipe or compressed to form the pipe. The outer pipe comprises a socket end, a pipe body and a spigot end which are connected in sequence, the outer pipe is made of metal, the inner pipe is made of a corrosion-resistant material, each end of the pipe is provided with a sealing layer and a lining ring made of a corrosion-resistant metal material, and the length of each lining ring extending into the pipe is not less than 20mm. The anti-corrosion pipeline is good in anti-corrosion effect, and the water conveying efficiency of the pipeline is improved. The corrosion-resistant metal lining ring prevents each layer of material from being stripped; and the strength and the deformation resistance of the pipe are improved.

The invention relates to a full-temperature-range polymer-based solid electrolyte, a solid-state battery and a preparation method. Mixing alkali metal salt, a polymer monomer and a plasticizer to obtain an electrolyte precursor; the polymer monomer comprises a fluorinated acrylate compound; the plasticizer comprises a fluorinated carboxylic ester compound, a fluorinated carbonic ester compound or a fluorinated amide compound; and adding an initiator into the electrolyte precursor, heating and polymerizing to obtain the polymer-based solid electrolyte with the polar functional group forming the dipole group, namely the full-temperature-range polymer-based solid electrolyte. A polymer monomer with a soft long side chain is used, and plasticizer molecules are anchored between polymer chains, so that leakage of the plasticizer molecules and parasitic reaction between the plasticizer molecules and an electrode are reduced, and the interface stability of the electrolyte in a high-temperature environment is improved; a polar functional group in the solid electrolyte has relatively high electronegativity, and the formed dipole interacts with alkali metal ions, so that the ions are quickly decoupled from a polymer matrix, and the low-temperature conductivity is favorably improved.

The invention relates to the technical field of annealing furnaces, in particular to a swirl injection type energy-saving annealing furnace. The device comprises outer shell plates and an air duct, the outer shell plates are spliced to form a hearth, the air duct is arranged in the outer shell plates to form an air path for convective circulation, the air duct is connected with a circulating fan, and air in the air duct and an inner cavity of the hearth is driven by the circulating fan to actively convectively circulate. The air direction of air convection circulation of the air channel faces the side face and the lower portion of the workpiece needing annealing, and a heat preservation layer is attached to the inner surface of the outer shell plate. The shell plate is used for supporting a main body structure of the furnace body, the air duct is used for achieving circulation convection of air flow, the annealing efficiency and the annealing quality of the metal coiled materials are improved through circulation convection of high-temperature air flow, the heat preservation layer is used for storing internal heat, reducing energy leakage and effectively reducing loss, and the circulation fan is used for providing power for circulation convection of the air flow.

The embodiment of the invention discloses illness state detection equipment based on a multi-modal image, an illness state detection method and a medium. A specific embodiment of the method comprises the following steps: acquiring a patient historical medical record information set and current patient physical state information; sensitive data desensitization processing is conducted on the historical medical record information set of the patient, and a desensitized historical medical record information set of the patient is obtained; inputting the current patient physical state information and the desensitized patient historical medical record information set into an illness state detection model to obtain current illness state information; performing causal relationship extraction on the desensitized patient historical medical record information set to obtain a disease condition time sequence causal diagram; inputting the disease time sequence causal diagram, the desensitized patient historical medical record information set and the current disease information into a disease prediction model to obtain disease development prediction information; and performing illness state grade evaluation on the illness state development prediction information, and sending illness state early warning information. According to the embodiment, the accuracy of illness state detection and prediction can be improved, and the accuracy of early warning information sending is improved.

The invention discloses a low-temperature sintering asymmetric porous silicon carbide ceramic membrane separation layer and a preparation method thereof, the preparation method comprises the following steps: a) preparation of a coating liquid: firstly dispersing a binder in a solution, adding silicon carbide particle powder, carrying out magnetic stirring dispersion for a period of time, then adding a dispersant, and stirring; then putting the stirred and mixed film coating liquid and the grinding balls into a ball milling tank for ball milling; and adjusting the pH value of the ball-milled silicon carbide coating liquid with ammonia water, and carrying out vacuum defoaming to finally obtain the high-stability and uniformly-dispersed silicon carbide coating liquid. Wherein the addition amount of the silicon carbide coarse particles is 0.5-50 wt% of the mass of silicon carbide; b) coating; c) drying; and d) sintering. The asymmetric porous silicon carbide ceramic membrane prepared by the method is low in sintering temperature, and the prepared separation layer membrane is controllable in pore size and uniform in pore size distribution; the method has excellent application prospects in the field of membrane separation.

The invention discloses a surface acoustic wave device, which comprises a substrate, a first dielectric layer, a piezoelectric layer, an interdigital transducer and a second dielectric layer, the first dielectric layer is arranged on the substrate; the piezoelectric layer is arranged on the first dielectric layer; the interdigital transducer is arranged on the surface of the piezoelectric layer, an overlapping area is formed between the two bus bars in the extending direction of the electrode fingers, a gap area is formed between the overlapping area and the bus bars, and the gap area is adjacent to the ends, close to the overlapping area, of the bus bars; the second dielectric layer is located in at least one gap region and covers the piezoelectric layer and the electrode fingers located in the gap region; wherein the propagation speed of the sound waves in the first dielectric layer and the propagation speed of the sound waves in the second dielectric layer are larger than the propagation speed of the sound waves in the piezoelectric layer, and the thickness of the first dielectric layer and the thickness of the second dielectric layer meet the condition that h2 is smaller than or equal to 0.3 h1. The surface acoustic wave device solves the problem that the Q value of the surface acoustic wave device cannot be improved and the high-frequency impure-mode suppression effect near the anti-resonance point cannot be improved in the prior art.

The invention discloses a spoken English man-machine conversation interaction training method and system, and relates to the technical field of spoken English training, spoken English audio signals of a user are monitored in real time through a microphone, and the frequency spectrum information of the audio signals is refined into each frame of spectrogram and cepstrum coefficient feature vectors by using Fourier transform and feature extraction technologies; therefore, the voice signal characteristics of the user can be completely captured; three core dimensions of semantic similarity, grammatical structure similarity and fluency are incorporated into an evaluation model, a comprehensive oral English training evaluation system is formed, a text sequence is generated by analyzing a time sequence dependency relationship through a convolutional neural network, and the oral English training evaluation model of a deep learning technology is combined, so that the oral English training evaluation accuracy is improved. According to the method, the expressions of the user in the aspects of semantics, grammar and fluency can be accurately measured, the oral training level of the user can be comprehensively judged by the system by comparing the comprehensive evaluation coefficient with the preset qualified threshold value, and a personalized learning guide is provided according to a result.

The invention relates to a plant steel truss floor support plate, and belongs to the field of building steel structures, the plant steel truss floor support plate comprises a first bottom plate and a second bottom plate, the first bottom plate is arranged on the second bottom plate, the size of the second bottom plate is larger than that of the first bottom plate, and a plurality of first vertical rib positioning grooves are formed in the second bottom plate; the first vertical rib positioning grooves are formed close to the side face of the first bottom plate, second vertical rib positioning grooves are formed in the two sides of the first bottom plate, the second vertical rib positioning grooves penetrate through the bottom and the top of the first bottom plate, the second vertical rib positioning grooves correspond to the first vertical rib positioning grooves in a one-to-one mode and are communicated with the first vertical rib positioning grooves, and the first vertical rib positioning grooves in the two sides of the second bottom plate correspond to each other in a one-to-one mode. The floor support plate has the advantages that the vertical steel bars can be accurately and rapidly positioned, the vertical steel bars are not prone to deviation in the welding process, meanwhile, splicing of the adjacent bottom plates is facilitated, the machining difficulty of the floor support plate is lowered, and the situation of slurry leakage in the concrete pouring process is reduced.

The present invention relates to the field of tire processing technology, in particular to an environmentally friendly processing device for recycling and utilizing waste tire rubber, comprising a crushing box, a first material guide block is provided at the lower left end of the crushing box, a first belt conveyor is provided on the first material guide block, a crushing assembly is provided inside the crushing box, a screening box is provided at the left end of the first belt conveyor, a disc screen assembly is provided inside the screening box, two support blocks are fixedly provided on the outer wall of the screening box in a symmetrical structure, a reflux block is installed at the lower end of the screening box, the reflux block is in an inclined structure, the lower right end of the reflux block is connected to the upper end of the crushing box, a second material guide block is provided at the lower end of the screening box, and a steel wire processing box is provided at one end of the second material guide block. It is convenient to crush and separate steel wire and rubber in waste tires, ensure the efficient separation of steel wire and rubber, improve the processing efficiency and crushing effect of waste rubber tires, improve the quality of recycled rubber, and provide strong technical support for the recycling and utilization of waste tires.

The invention belongs to the field of drug preparation, and particularly relates to a preparation method and application of a drug delivery system based on hollow mesoporous polydopamine nanoparticles. The drug delivery system comprises hollow mesoporous polydopamine nanoparticles, a drug loaded inside and / or outside the hollow mesoporous polydopamine nanoparticles, and pectin wrapping the hollow mesoporous polydopamine nanoparticles, the medicine is a medicine with a nerve protection effect and an acetylcholin esterase inhibitor. The drug delivery system can reduce proinflammatory cytokines, regulate functions of target immune cells, synergistically reduce necrosis of neurons in intestinal tracts and induce neural crest stem cells in the intestinal tracts to be differentiated into neurons.

The invention relates to the technical field of lithium battery diaphragms, and discloses a water-soluble gel electrolyte, a preparation method thereof, water-based slurry and application. The preparation method of the water-soluble gel electrolyte comprises the following steps: in the presence of an initiator, carrying out first polymerization reaction on methyl methacrylate and N-isopropylacrylamide to obtain an intermediate I; carrying out second polymerization reaction on the polymer solution A and the polymer solution B to obtain an intermediate I; the polymer solution A contains an intermediate I with the concentration of 8-12wt%; the polymer solution B contains neopentyl glycol diglycidyl ether with the concentration of 0.5 to 1.2 weight percent; and carrying out heating treatment on the intermediate I to obtain the water-soluble gel electrolyte. When the water-soluble gel electrolyte is applied to the battery diaphragm, the addition amount of the electrolyte can be reduced during electrolyte injection in a battery cell, and the cost is effectively reduced; battery leakage is reduced, and the safety performance of the battery cell is improved; and the internal resistance can be reduced, and the cycle performance of the battery cell can be improved.

The invention discloses a method for transforming a depleted or nearly depleted unconventional oil and gas reservoir into a compressed air energy storage system, which is applied to the technical field of underground energy storage and aims to solve the problem that the existing main compressed air energy storage system is mainly a salt cavern reservoir, but salt caverns capable of being used for compressed air energy storage are insufficient from comprehensive factors. According to the invention, an existing exhausted or nearly exhausted unconventional oil and gas reservoir is transformed as an energy storage place for compressed air. Due to the fact that the exhausted or nearly exhausted unconventional oil gas fracturing well is adopted, the existing fracturing well can be effectively utilized, resource waste is avoided, and economic benefits are increased. Due to the fact that the complex fracture network space formed by fracturing and the pore space, disturbed by fracturing, of the unconventional oil and gas reservoir are utilized, high-pressure gas can be effectively sealed, leakage is reduced, and the pressure maintaining capacity is improved.

The invention relates to a paper roll feeding mechanism, a register embossing device and a printing production process of decorative paper, and relates to the field of printing mechanisms, the paper roll feeding mechanism comprises a rack, a frame body, a material separating frame, a material separating paper tube, a first paper tube, a second paper tube, a first driving assembly, a second driving assembly, a mounting assembly and a clutch assembly, the first paper tube is provided with an air expansion shaft in a penetrating mode, the end of the air expansion shaft is detachably and rotationally matched with the supporting seat through an installation assembly, and the first driving assembly is used for driving the air expansion shaft to rotate; the second paper tube is located under the first paper tube, the top of the peripheral face of a paper roll of the second paper tube abuts against the bottom of the peripheral face of the paper roll of the first paper tube, the second paper tube is detachably connected with the frame body through a clutch assembly, the second driving assembly is used for driving the second paper tube to rotate, and the material distributing paper tube is arranged on a material distributing frame. The material distributing paper tube is used for supplying paper to the second paper tube. The supporting stability of the first paper tube can be improved.

The sealing cup is of a cup-shaped structure which is made of a thin-wall plate body and comprises an annular side plate portion and a bottom plate portion, the top of the side plate portion is turned outwards to form an annular groove capable of being assembled to an opening of a certain container, and a first installation hole is formed in the center of the bottom plate portion. A first type of annular pressing groove surrounding the first mounting hole is formed on the first inner surface of the bottom plate part, and a first type of annular bulge is formed at the corresponding position on the first outer surface of the first wrinkle; one or more second-type annular pressing grooves surrounding the first-type annular pressing grooves are formed in the first inner surface of the bottom plate part, and one or more second-type annular protrusions are formed in the corresponding positions of the first outer surface of the bottom plate part. Compared with the most similar prior art, the valve provided by the utility model has the advantages that materials and cost can be saved on the premise of ensuring the sealing performance; leakage caused by long-time storage can be reduced; and blockage caused by repeated use can be reduced.

An embodiment of the present specification discloses a speaker, comprising: a vibration assembly including a vibration element and a vibration housing, the vibration element converting an electrical signal into mechanical vibration, the vibration housing being in contact with a face skin of a user; and the first elastic element is elastically connected with the vibration shell.

The invention discloses a gallium oxide-based MOSFET device and a preparation method thereof, and relates to the field of semiconductor devices. The device has the characteristics of high voltage resistance and low electric leakage, and comprises a conductive region and an edge terminal region connected with the conductive region, the conductive region comprises a first drain metal layer, a first gallium oxide substrate, a first gallium oxide epitaxial layer, a gallium oxide current barrier layer and a highly-doped gallium oxide N + region which are sequentially stacked from bottom to top, and a groove which is positioned on the surface of the highly-doped gallium oxide N + region and of which the bottom is propped against the first gallium oxide epitaxial layer; the conductive region further comprises a first p-type semiconductor buried layer located at the bottom and on the side wall of the groove, a gate dielectric layer located on the surface of the first p-type semiconductor buried layer, the side wall of the groove and the surface of the highly-doped gallium oxide N + region, and a gate metal layer located on the surface of the gate dielectric layer. The first interlayer dielectric layer covers the surface and the side face of the gate metal layer and the side face of the gate dielectric layer, and the source metal layer is located on the surface of the first interlayer dielectric layer and the surface of the highly-doped gallium oxide N + region.

The invention relates to the technical field of automobile air conditioners, in particular to an air inlet structure with a compensation air opening and an automobile air conditioner. The ventilation structure with the compensation air opening comprises a ventilation box and a ventilation device, wherein an outer circulation air inlet, an inner circulation air inlet, the compensation air opening and an air outlet are sequentially formed in the ventilation box; the air conditioner filter element is installed on the inner wall of the ventilation box in an abutting mode and located between the inner circulation air inlet and the compensation air opening. The air door is rotationally installed on the inner wall of the ventilation box, and the driving piece drives the air door to rotate so as to seal the outer circulation air inlet or the inner circulation air inlet. The structure can reduce the filtering burden of the air conditioner filter element, prolong the service life of the air conditioner filter element, reduce air noise, serve as a partition plate, reduce leakage of cold air or hot air, save energy consumption and remarkably improve the refrigerating or heating effect of an air conditioner.

The invention provides a frequency mixer and signal transmission equipment, and belongs to the technical field of communication. In the scheme provided by the invention, the mixer can transmit the local oscillator signal through the slot line, and transmit the first signal, the second signal and the third signal through the microstrip line. Therefore, it can be ensured that the transmission mode of the local oscillator signal is different from the transmission mode of the first signal and is different from the transmission modes of the second signal and the third signal, that is, the transmission mode isolation of the local oscillator signal from the first signal and the transmission mode isolation of the local oscillator signal from the second signal and the third signal can be realized. The transmission modes of the local oscillator signal and other signals are isolated, so that the leakage of the local oscillator signal at other signal ports can be effectively reduced, and the performance of the mixer is effectively improved.

The utility model provides a rock drill impact hydraulic control valve group and a rock drill, the valve group comprises a hydraulic control reversing valve, a first throttling hole, an electric proportional overflow valve, an overflow valve, a second throttling hole, a valve body and an electromagnetic reversing valve, the valve body is provided with a pressure oil port P, an oil return port T, an oil drainage port L, an LS oil port and a working oil port A; the pressure oil port P is communicated with an oil inlet of the overflow valve and an oil inlet of the second throttling hole through a hole channel in the valve body. An oil outlet of the second throttling hole is communicated with an oil inlet of the electromagnetic reversing valve; a working oil port of the electromagnetic reversing valve is communicated with a control oil port of the hydraulic control reversing valve; the oil return port T is communicated with an oil outlet of the overflow valve; and the oil drainage port L is communicated with an oil drainage port of the electromagnetic reversing valve, and is communicated with an oil drainage port of the hydraulic control reversing valve, an oil outlet of the electric proportional overflow valve and a control oil port at the same time. Damage of pressure building to a system and elements is eliminated, and residual impact pressure existing after oil cut-off is eliminated.

The invention relates to the technical field of multi-stage centrifugal compressors, and discloses a multi-shaft multi-stage centrifugal compressor for a high-temperature heat pump, which comprises an input shaft, an output shaft and a gear box, the input shaft and the output shaft are arranged on the gear box, the input shaft is in transmission connection with the output shaft through a gear set, one end of the output shaft is provided with a first-stage compressor, and the other end of the output shaft is provided with a second-stage compressor. A first-stage compressor is installed at one end of the output shaft, a second-stage compressor is installed at the other end of the output shaft, a first-stage sealing device is arranged at the joint of the first-stage compressor and the gear box, a second-stage sealing device is arranged at the joint of the second-stage compressor and the gear box, and the first-stage sealing device is communicated with the second-stage sealing device. The secondary sealing device is communicated with an air exhaust compressor through an air exhaust pipeline, the air exhaust compressor is installed on the input shaft, and the air exhaust compressor conveys a working medium to a working medium system. The sealing device is arranged between the compressor and the gearbox, so that leakage of working media is reduced, and the sealing effect is improved.

The invention provides a method for improving lubricating property and wear resistance of base oil and a method for improving dispersion stability of graphite in the base oil. A telechelic polymer is adopted, the telechelic polymer is composed of an oil-soluble central chain and two non-oil-soluble pyrene functionalized end-group chains, and the telechelic polymer can be self-assembled into a completely cross-linked, rodlike and stable gel network through pi-pi stacking interaction. The telechelic polymer is added into the base oil, so that stable oil gel can be formed, on one hand, leakage and wriggling of the base oil can be remarkably relieved, and on the other hand, the lubricating property and wear resistance of the base oil can be improved; when graphite or a derivative thereof is also added, the lubricating property and the wear resistance can be further improved, particularly when the graphite is added, the graphite can be stripped into graphene in situ under the assistance of ultrasonic waves, the cost is low, the method is simple and easy to implement, and the dispersion stability of the graphite is improved.

A greenhouse environment control and field management integrated system comprises an irrigation system, an aerial fog system, a conveying pipeline and a sensing control system. According to the utility model, various agricultural production management such as irrigation, pesticide application, ventilation, heating, dehumidification, cooling and the like can be carried out according to the growth requirements of crops, a frame is provided for hanging vine crops such as tomatoes, cucumbers and the like for supporting, and meanwhile, wind power can be provided for solanaceous crops for pollination. The system is high in integration level and rich in function, the greenhouse space can be effectively saved, the crop production efficiency is improved, the labor amount in the production process is reduced, and help is provided for intelligent management and control of facility agriculture.