55results about How to "Reach homeostasis" patented technology

The invention discloses a cellular network base station and relay station joint sleep scheduling method based on business traffic predictions. The method comprises the following steps: (1) historic business traffic data of cellular network base stations and cellular network relay stations is obtained, and a support vector machine learning and prediction model is established; (2) a prediction value rho<m> for a business traffic within a station coverage of each of the cellular network base stations and relay stations at a moment m is obtained; (3) rho<m> and a threshold rho-bar for the business traffic within the station coverage of each of the cellular network base stations and relay stations are compared, and whether the cellular network base stations and the cellular network relay stations are to enter a sleep status or not is determined; for the cellular network base stations and the cellular network relay stations that are in the sleep status, if rho<m> is greater than rho-bar, then the cellular network base stations and the cellular network relay stations are waken up, wherein rho-bar is greater than zero and smaller than or equal to 1. Through the method, an aperiodic sleep mechanism and a wake-up mechanism for the cellular network base stations and the cellular network relay stations can be effectively determined, so that real-time sleep scheduling can be guaranteed, and a dynamic balance between spectrum efficiency and energy efficiency can be achieved.

The invention discloses an automatic gain control system and control method for an AGC (Automatic Gain Control) loop. Cascading cooperation of an attenuator, a coupler, a detector and an amplifier is adopted to form the AGC loop, wherein an output power signal of a microwave source enters the attenuator, an output power of the attenuator is coupled by the coupler to enter the detector, the detector detects an input signal, the signal is controlled to be output to the operational amplifier by controlling a voltage, and the operational amplifier receives an output voltage of the detector and according to a working mode of the detector, feeds the output voltage into a control voltage port of the attenuator. The control voltage of the detector in the loop has a quantitative relationship with an input power, and a user can directly obtain the control voltage of the detector according to the size of a required output power, thereby obtaining the parameter ranges of other devices. According to the parameter ranges, the suitable devices are selected to set up the circuit; the automatic gain control system and control method are simple, rapid, convenient, time-saving and labor-saving.

The invention relates to the technical field of biological products, and discloses a fermentation method for lactobacillus with high cell density. The fermentation method comprises the steps of constructing a fibrous bed reactor, preparing a culture medium, inoculating, culturing by fermenting, detecting microbial content, collecting fermentation liquor and the like. According to the fermentation method, fiber materials are successfully arranged inside the reactor as carriers of immobilized lactobacillus cells, and the number of the lactobacillus cells can be substantially enhanced in fermentation of lactobacillus with the fibrous bed and under specific fermentation conditions. The biological reactor can be separately used or be taken as a seed fermentation tank to be combined with a common reactor for carrying out sequence fermentation in batches or continuous fermentation, and has the characteristics of being high in production efficiency and stable in batch production, shortening a fermentation period, ensuring high cell density and the like; fiber materials used by the method are cheap; the device is simple and convenient to operate, the production cost is low, and the fermentation method can be well applied to industrialized production of cells of lactobacillus such as lactobacillus acidophilus, lactobacillus bulgaricus and bifidobacterium.

The invention provides a bucket closing lifting control system of a four-rope grab bucket crane. The bucket closing lifting control system of the four-rope grab bucket crane comprises a main control unit, an on / off frequency converter and a support machine frequency converter, wherein the main control unit comprises a speed control subunit and a torque obtaining subunit; the speed control subunit is used for inputting an operation frequency instruction into the on / off frequency converter so that the on / off frequency converter to conduct the operation frequency instruction and to drive an on / off motor to operate; the torque obtaining subunit is used for obtaining an output torque of the opening and closing machine frequency converter, outputting the output torque of the opening and closing machine frequency converter to the support machine frequency converter and enabling the output torque of the support machine frequency converter to drive the motor to operate. The invention also provides a corresponding method. According to the bucket closing lifting control system and method of the four-rope grab bucket crane, the support machine frequency converter operates along with the torque of the on / off frequency converter, so that the support machine frequency converter is capable of quickly and automatically adjusting output frequency, thus dynamic balance of the grab bucket state can be reached and the application efficiency of the grab bucket can be improved.

The invention discloses an oil balancing device which comprises an oil separator and an electromagnetic valve, wherein the oil separator is provided with a mixed liquor input end, a cooling medium output end, an oil back flow end and an oil balancing end; the oil balancing end is provided with an oil balancing isolating valve, and an oil balancing one-way valve is arranged between the oil balancing isolating valve and the oil separator; and one end of the electromagnetic valve is communicated with a parallel compressor unit, and the other end of the electromagnetic valve is communicated with the oil balancing one-way valve. When the lubricating oil in the individual air-conditioning equipment in a multi-split air conditioning system is excessive, the oil balancing device enables the excess lubricating oil to be sent to other air-conditioning equipment, and the distribution of lubricating oil of each air-conditioning equipment in the multi-split air conditioning system is more uniform; and in addition, an unloading valve is added so as to avoid that the booster danger is generated because of overhigh pressure in the oil balancing device under the occasion of working condition acute variation or bad transportation, and the reliability of the multi-split air conditioning system is improved. The invention further discloses the multi-split air conditioning system.

The invention discloses a forage-use green probiotic acidifier. The forage-use green probiotic acidifier is prepared from the following components in mass percent: 0-5% of 60% phosphoric acid solid powder, 28-60% of 35% lactic acid solid powder, 3-14% of 60% n-butyric acid solid powder, 30-45% of solid organic acid, 0-6% of disodium hydrogen phosphate, 0-13% of calcium formate, 0-10% of prebiotics and 0-6% of filling carriers. According to the invention, the disodium hydrogen phosphate and an organic acid or an inorganic acid (citric acid or phosphoric acid or the like) are added to the forage-use green probiotic acidifier to form a buffer pair, so that the buffering capacity of the acidifier is enhanced to sustainably maintain pH to be about 3-4 in a gastric phase, feed change or weaning stress is effectively perfected, and the growth of harmful bacteria in an intestinal phase is inhibited.

The invention relates to an ecological system suitable for deepwater environment restoration and a construction method thereof. According to the ecological system, the underwater illumination system, the photocatalysis bionic net and the aquatic vegetation are matched, light energy of the underwater illumination system is absorbed by utilizing a photocatalysis material on the photocatalysis bionic net, water body pollutants are continuously adsorbed and degraded, microflora is enriched, water body organic pollutants are decomposed into nutrition ingredients for growth of the aquatic vegetation, and the aquatic vegetation starts photosynthesis through underwater illumination, and growth is accelerated. The whole system depends on a photocatalytic material with visible light response, photosynthetic water ecology natural recovery is started, and the power of nature is started to purify a water body and restore ecology. In addition, the photocatalytic bionic net can absorb light energy and is used for decomposing water to generate oxygen, a large amount of newly-generated oxygen can attract fishes and shrimps, breeding of surrounding aquatic ecological plants is promoted, and dynamic balance of aquatic ecology is achieved.

The invention provides an energy-saving battery formation device including a rectifying circuit, a controller, a voltage measurement module, a super capacitor, a plurality of bi-directional DC / DC circuits and a storage battery; the controller is in communication connection with the voltage measurement module and the plurality of bidirectional DC / DC circuits; the input end of the rectifying circuit is connected with an alternating current interface, after alternating current is rectified and filtered, stable direct current is formed and is outputted to the super capacitor and the plurality of bidirectional DC / DC circuits; the controller acquires a voltage signal collected by the voltage measurement module, and calculates the battery electric quantity according to battery characteristics. The invention provides the energy-saving battery formation device with the built-in super capacitor and the DC / DC conversion circuits; the super capacitor is used as a component for temporary storage of electric energy, electric energy released by discharging in the battery formation process is stored, and the stored electric energy is circularly converted into electric energy required by charging in the battery formation process, so as to achieve dynamic balance, save electric energy, and reduce operation costs of storage battery production enterprises.

The invention discloses a normally-closed proportional one-way flow valve comprising a valve body provided with an opening A and an opening B. A thread sleeve is connected to the upper portion of thevalve body in a threaded mode; a proportional electromagnet is assembled on the upper portion of the thread sleeve; an armature is arranged at the center of the proportional electromagnet; a spring isarranged on the large-hole-diameter part of an inner hole of the armature and enables a convex ring at the upper end of a pilot valve element in the thread sleeve to abut against a step of the innerhole; the lower end of the pilot valve element penetrates through a throttling hole in the center of a positioning sleeve; a pressure feedback cavity is formed in the upper portion of the throttling hole, and a hydraulic control cavity is formed in the lower portion of the throttling hole; a valve sleeve is arranged in the position, on the lower portion of the positioning sleeve, in the valve body; a main valve element is arranged at the center of the valve sleeve; a side oil hole communicating with the opening B and a lower oil hole communicating with the opening A are formed in the valve sleeve; a first damping hole communicating with the opening B is formed in the side wall of the thread sleeve; a second damping hole communicating with the lower oil hole is formed in the center of the main valve element; and the open degree of the throttling hole in the positioning sleeve is changed through up-down movement of the pilot valve element. The normally-closed proportional one-way flow valve has the advantage that the flow is kept stable when the load is changed.

The invention discloses an energy-saving cooling system for a wind driven generator. The energy-saving cooling system comprises the wind driven generator, an absorber, an energy conversion device andtwo coil pipes. A steam outlet of the wind driven generator is connected with a steam inlet of the energy conversion device, a steam outlet of the energy conversion device is connected with an inlet of the first coil pipe, and an outlet of the first coil pipe is connected with a steam inlet of the absorber. A dilute binary solution outlet of the wind driven generator is connected with an inlet ofthe second coil pipe, and an outlet of the second coil pipe is connected with a dilute binary solution outlet of the absorber. A concentrated binary solution outlet of the absorber is connected with aconcentrated binary solution inlet of the energy conversion device, and a concentrated binary solution outlet of the energy conversion device is connected with a concentrated binary solution inlet ofthe wind driven generator. The energy-saving cooling system for the wind driven generator has the advantages that harmful heat energy in a wind driven generator engine cabin is converted into usablemechanical energy to serve as an energy source for driving the cooling system, so that the goal of energy saving is achieved.

The invention relates to the fruit tree planting technology, and specifically relates to a fruit tree one-trunk-multi-branch tree form reconstruction method comprising the following steps: a top-prosperous bottom-fake prosperous fruit tree needs to be reconstructed, and the reconstruction needs to be done before spring germination; 1, removing 1-2 large branches, shielding most sunlight and overly absorbing nutrition, on the top of the fruit tree, so the top and bottom of the fruit tree are even in vigour, and sun illumination is good; 2, processing large branches affecting fruit tree line spacing passing and strain spacing ventilation light transmission, thus reducing a tree crown; removing a branch shaft front portion affecting line spacing passing on the fruit tree, causing many wounds in the front portion, thus preventing or alleviating front portion nutrition growth vigour, and promoting flowering and fruiting. If flowering is predicted, fruits are kept so as to lower the crown; if flowering is difficult, more than two annular cuts are simultaneously done in a strong-weak joint 15-20 days before the germination, and the interval between the cuts is 1-2 cm, and the cuts reach to the xylem; tree form reconstruction can be realized, so the tree form is more reasonable, and tree body ventilation light transmission is good.

The invention belongs to the field of gas engines and particularly relates to a system and a method for reducing the temperature of the cooling water of a gas engine through the LNG (Liquefied Natural Gas) cold energy. A large circulation supply pipeline and a small circulation pipeline are arranged in an LNG supply system and a large circulation heat exchanger and a small circulation heat exchanger are arranged in the two pipelines in an additional mode respectively; the temperature of the circulating water can be reduced through the LNG cold energy and the self-temperature of the circulating water is utilized through each heat exchanger to serve as an LNG gasifier; the two-stage utilization on the LNG cold energy is achieved due to the fact that an engine cooling system is corresponding to different working conditions of the engine and accordingly the rapid use on the gas supply of the gas engine and the temperature of the cooling water is facilitated so as to achieve the dynamic balance. The gas engine which is modified from a diesel engine is simple in modification, high in cold energy utilization rate and broad in application prospect.

The invention discloses a hob layout adjustable cutter disc of a tunnel boring machine and an operation method of the hob layout adjustable cutter disc. The hob layout adjustable cutter disc comprisesa rotary disc structure, wherein the rotary disc structure is sequentially provided with a first-stage rotary disc, a second-stage rotary disc and a third-stage rotary disc from inside to outside; the second-stage rotary disc is rotatably arranged on the peripheral wall of the first-stage rotary disc in a sleeve mode, and the third-stage rotary disc is rotatably arranged on the peripheral wall ofthe second-stage rotary disc in a sleeve mode; a plurality of radial guide rails are fixedly arranged on the first-stage rotary disc, the second-stage rotary disc and the third-stage rotary disc, andeach radial guide rail is provided with a locking mechanism; and each radial guide rail is movably provided with a hob seat, and each hob seat is fixedly provided with a hob. According to the hob layout adjustable cutter disc and the operation method thereof, the technical problem of poor geological adaptability of an existing TBM (tunnel boring machine) can be solved.

The invention discloses a precision overprinting mechanism of a unit-type flexo machine. The precision overprinting mechanism comprises a roller and a base roller. The base roller is arranged below the roller, and slightly contact with the base plate during printing. The precision overprinting mechanism is characterized in that a pressing roller is arranged below the base roller; the pressing roller is arranged movably, is pushed through a pneumatic element, and contacts with the base roller during printing; a print length adjusting device is arranged on a feeding and conveying channel before a print is pressed through the roller for printing and is driven through a motor; a photoelectric tracker is arranged on a discharging and conveying channel after the print is printed; the motor is controlled according to output of the photoelectric tracker. The precision overprinting mechanism is designed for high-quality flexo printing for films, and is adaptive to flexo printing for paper.

The invention discloses a normally-open proportional one-way flow valve. The normally-open proportional one-way flow valve comprises a valve body provided with a port A and a port B. The upper portion of the valve body is in screw joint with a screw sleeve. A proportional electromagnet is assembled to the upper portion of the screw sleeve. An armature is arranged at the center of the proportional electromagnet. The lower end of the armature abuts against and is matched with a piloted valve element in the screw sleeve through an ejector rod. A spring is arranged between the upper portion of the piloted valve element and a stop ring. The lower end of the piloted valve element penetrates a throttling hole in the center of a positioning sleeve. A pressure feedback cavity is formed above the throttling hole. A hydraulic control cavity is formed below the throttling hole. A valve sleeve is arranged in the part, below the positioning sleeve, in the valve body. A main valve element is arranged at the center of the valve sleeve. The valve sleeve is provided with a side oil hole communicating with the port B and a lower oil hole communicating with the port A. A first damping hole is formed in the side wall of the screw sleeve and communicates with the port B. A second damping hole is formed in the center of the main valve element and communicates with the lower oil hole. The aperture of the upper throttling hole of the positioning sleeve is changed through the up-down movement of the piloted valve element, and the beneficial effect that flow stability is kept when loads change is achieved.

The invention discloses a flowing type high-temperature high-pressure solubility online measuring device and a measuring method thereof. The system comprises a feeding system, a balance kettle, a sampling system and a pressure control system. A Hastelloy C276 material is adopted as the balance kettle body so that the balance kettle body can resist a high temperature of 823K and a high pressure of35MPa, and a stable phase balance state can be obtained in a relatively large temperature and pressure range; the reasonable feeding system ensures that reagents entering the balance kettle are consistent in composition and are uniformly mixed; a precise temperature and pressure control system and a mechanical stirring device ensure that a fluid phase in the balance kettle is fully balanced; the reasonable sampling system ensures that the phase balance of the flow system is not influenced in the sampling process, the high-voltage conductivity detection pool can detect the conductivity of the sample on line, and the solubility data of the fluid is further obtained.

The invention provides a temperature control system and a temperature control method for the microbial decomposition process of organic matters, and aims to provide a temperature control system and a temperature control method for the microbial decomposition process of organic matters. According to the technical scheme of the invention, the fact that the microbial activities of different microflora in different temperature conditions are diversified is fully utilized. Therefore, the decomposition treatment effect of organic matters is improved. The temperature control system comprises a material temperature sensor, an oxygen supply temperature sensor, an ambient temperature sensor, an exhaust gas temperature sensor, a material temperature signal processor corresponding to each temperature sensor, an oxygen supply temperature signal processor, an ambient temperature signal processor, an exhaust gas temperature signal processor, a material heater, an oxygen supply heater, an exhaust device, a dust-removing heater and a stirring device. The signal line of each temperature signal processor is respectively connected with an input module. An acquired data signal is analyzed and processed by a programmable logic controller (PLC), and then the temperature in a decomposition chamber is adjusted by a temperature adjusting assembly under the control of an output module.

The invention relates to the technical field of modern agricultural cultivation, and discloses a water quality regulator for fish cultivation in rice fields. The prepared water quality regulator can guarantee the maximum supply of nutrients in the rice growth period by intervening the element content of rice field culture water in the rice growth process, and improve the fish culture environment,and a rice field-fish composite ecological system is constructed, so that the yield and quality of aquatic products are improved, and the rice field water eutrophication problem is solved. By means ofthe culture mode, the whole rice field system has high self-purification capacity, benign growth and reproduction of organisms in water are kept, the water environment is stable, the water changing frequency is remarkably reduced, the cost is reduced, culture losses caused by water quality pollution are avoided at the same time, mutual utilization of rice and aquatic metabolites is achieved, andthe dynamic balance of a rice culture system is realized; and the adverse effects of eutrophication on aquaculture are reduced, the cost investment can also be reduced, the fish culture benefit is improved, and the problems of low quality, poor benefit and large pollution of the aquatic products cultured in the existing rice field are solved.

The invention belongs to the technical field of wastewater treatment, and more particularly, relates to methods for preparing a wave absorbing catalyst and for degrading organic wastewater. The invention provides the methods for preparing the wave absorbing catalyst and for degrading the organic wastewater. A zero valence transition metal is loaded on a silicon carbide profile to prepare the wave absorbing catalyst which can be repeatedly used, high-price H2O2 and O3 are not required to be additionally added, and organic pollutants in the wastewater can be quickly and effectively degraded by using O2 in air. At the same time, activated-form oxygen species (.OH and .O2<->) generated from activation have reactivity much larger than that of basic-state molecular oxygen. Common powder catalysts are avoided; the catalyst is convenient to prepare and easy to separate and recycle; the basal profile silicon carbide has the advantages of stable performance and high mechanical strength and can be repeatedly used; the method is simple and easy to operate, wide in application scope and suitable for all kinds of organic wastewater difficult to degrade, and has no secondary pollution.

The invention relates to a visual back pressure spray test device used for optical measurement and a method thereof and especially relates to a back pressure environment spray test device which carries out atomized mixing characteristic research and is used for an optical measurement technology. The device is generally located on a downstream of a liquid flow test supply system. A spray test condition possessing stable environment pressure can be formed so as to simulate back pressure states in various kinds of combustion chambers. A visual function and an optical coordinate system are possessed, which is convenient for using various kinds of laser measurement devices to carry out non-contact measurement. The device is installed on a fan blowing device above a sight mirror so as to continuously output a fan air blade downwardly so that water mist is brought to an outfall. Under the condition that an optical path is not influenced, the sight mirror is protected from being immersed by the water mist and normal propagation of the optical path is ensured.

The invention relates to a hydraulic drag device which is structurally like a symmetric flying bird as a whole. The hydraulic drag device comprises a body and two wings. The front end of the body is provided with a water inlet. The rear ends of the two wings are provided with water outlets. Smooth cavities which are communicated with each other are arranged between the water inlet and the water outlets. The hydraulic drag device can be better suitable for different flow states. When flowing into a supercharger cavity, the water ascends along the wall of the inner cavity, thereby reaching dynamic equilibrium. The hydraulic drag device has good effect on removing the pressure of water and can be suitable for the requirements of different occasions.

The invention belongs to the field of microorganisms, and particularly relates to a microbial antibacterial deodorant preparation, and a preparation method and application thereof. The microbial antibacterial deodorant preparation disclosed by the invention is prepared from functional bacteria including bacillus aceticus, halomonas, lactobacillus casei and saccharopolyspora chrysosporium; and theratio of colony count of the acetobacter aceticus to the halomonas to the lactobacillus casei to the saccharopolyspora chrysosporium is (3-7):(3-8):(1-6):(0.5-2). The microbial preparation disclosed by the invention does not contain chemical additives; all functional bacteria surviving in the microbial preparation are dominant bacteria; a microorganism interspecific competition principle is utilized; the killing effect of metabolic products of the strains on pathogenic microorganisms is also achieved; the microbial antibacterial deodorant preparation shows excellent antibacterial and virus inactivation effects, the antibacterial effects on pseudomonas aeruginosa, B hemolytic streptococcus, shigella dysenteriae, staphylococcus aureus and escherichia coli all reach 93% or above, and the inactivation rate on influenza A H1N1 viruses reaches 99% or above.

The invention relates to a preparation method of water-swelling rubber, and belongs to the technical field of rubber materials. An acrylamide copolymer is grafted with maleic anhydride, starch is gelatinized and then is used to graft the obtained maleic anhydride-acrylamide in order to prepare a starch-maleic anhydride-acrylamide copolymer used as a water-absorbing component and a compatibilizer for the water-swelling rubber, and nitrile butadiene rubber used as a matrix is combined with a vulcanizing agent dicumyl peroxide, a reinforcing agent white carbon black and an antioxidant 4010 to prepare the water-swelling rubber with good salt tolerance. -CONH2 in the acrylamide is a nonionic group, does not dissociate in water, and is less affected by ions, so the introduction of acrylamide cansignificantly improve the salt tolerance of the water-swelling rubber; and the water-absorbing component and water with different salinities form a large amount of hydrogen bonds, and the water-absorbing component is repeatedly soaked to stretch hydrophilic chains, so the rubber interpenetrating network structure becomes perfect, the flexibility is enhanced, and the tensile strength is increased,thereby the water-swelling has good salt tolerance.

The invention relates to the technical field of distributed energy regulation and control, and further discloses a control system of the 5G technology on distributed energy regulation and control. Thesystem comprises a photovoltaic panel and a first shell. A supporting rod is fixedly connected to the top of the photovoltaic panel, a shell is fixedly connected to the top of the supporting rod, a supporting column is fixedly connected to the inner bottom of the shell, a threaded rod is fixedly connected to the interior of the shell, and a motor is fixedly connected to the top of the photovoltaic panel. Under the interaction of a processing chip, a shell III, a rotating rod, a rotating plate, a connecting rod, a gear and a toothed plate, when the processing chip senses that the temperature of the refrigerating and heating device is inconsistent with the temperature signal transmitted by the 5G signal, through adjusting the rotating direction of the rotating shaft, different temperature adjusting contacts on the toothed plate are in contact with the induction contacts to enable the refrigerating and heating device to adjust along with the corresponding temperature, dynamic adjustmentof cold energy and heat energy is achieved, and it is guaranteed that a user can use the most suitable cold energy and heat energy at any time.

The invention relates to liquid tea tree nutrients applied to tea planting as well as a preparation method and application of the liquid tea tree nutrients. The liquid tea tree nutrient is prepared from 15-50 parts of seawater, 30-100 parts of macroelements, 1-8 parts of first trace elements, 0.15-4 parts of second trace elements, 0.001-0.1 part of ultramicroelements and 80-500 parts of purified water. The preparation method comprises the following steps: adding all the components into water according to the requirement, and stirring until the obtained water solutions are clear. The application method of the liquid tea tree nutrient comprises the steps of respectively applying the root nutrient, the spraying foliar nutrient for the budding stage, the spraying foliar nutrient for the middlestage and the foliar nutrient for the later stage at the different stages of tea. After the liquid tea tree nutrients are used, the resistance of the soil and the tea is improved, the yield is greatly increased, pesticides do not need to be used, diseases and insect pests as well as pathological changes do not occur, and production increment, high efficiency, green and health are realized indeed;furthermore, the cost is greatly lowered, and the income of tea farmers can be increased.

The invention relates to the field of robot technology, and discloses a biped robot, which includes a trunk, a left leg and a right leg, and also includes a balance control system, a pressure module group and a balance fine-tuning system, and the pressure module group includes a left leg pressure module and a right leg The pressure module, the balance fine adjustment system includes the total liquid storage tank, the solenoid valve, the electric pump, the connecting ring and the regulating pipe. A branch pipe is arranged between the conduit, the electric pump and the regulating pipe, and an electromagnetic valve is arranged on the conduit and the branch pipe; the invention also discloses a walking control method of a biped robot. The invention adjusts the center of gravity of the robot by adjusting the amount of liquid in the regulating tube and adjusting the distance between the regulating tube and the left or right leg, and can sense the direction in which the robot falls in time. The cost of the control parts is low, and the control process is simple and effective. to make the robot achieve dynamic equilibrium.

The application provides a nitrogen-containing compound represented by Chemical Formula 1, an organic electroluminescent device and an electronic device, which belong to the technical field of organic materials. The nitrogen-containing compound can improve the performance of the organic electroluminescence device.

The application provides a compound, an electronic component and an electronic device, which relate to the technical field of organic materials. The compound is shown in formula I, wherein, X 1 、X 2 and X 3 The same or different, and each independently selected from: carbon or nitrogen, where X 1 、X 2 and X 3 Not simultaneously carbon; L is selected from: single bond, arylene, heteroarylene, aralkylene, heteroaralkylene; Ar 1 is selected from: alkyl, cycloalkyl, aryl, heteroaryl, alkoxy, alkylamino, arylamino, aralkylamino; Ar 2 、Ar 3 The same or different, and each independently selected from: cycloalkyl, aryl, heteroaryl, alkoxy, alkylamino, arylamino, aralkylamino. The compound of the present application can reduce the working voltage of the electronic components, improve the luminous efficiency of the electronic components and prolong the service life of the devices.

The invention relates to a machine tool cutting auxiliary device, in particular to an ultrasonic gas static electric spindle. The ultrasonic gas static electric spindle comprises an air bearing shell,an air bearing body and a rotary shaft core, wherein the air bearing shell, the air bearing body and the rotary shaft core are sequentially sleeved from outside to inside. The air bearing body is fixed into the air bearing shell, the rotary shaft core is rotationally arranged in the air bearing body, and the rotary shaft core can move in the axial direction of the air bearing body. A thrust plateis fixedly arranged on the rotary shaft core. The air bearing body comprises a radial bearing body used for cooperating with the periphery of the rotary shaft core, an axial rear thrust bearing bodyused for cooperating with one side of the thrust plate and an axial front thrust bearing body used for cooperating with the other side of the thrust plate. The radial bearing body, the axial rear thrust bearing body and the axial front thrust bearing body are made of nano carbon fiber materials with uniform open air holes, and the densities of the open air holes are different. The ultrasonic gas static electric spindle is simple in structure and simple in control manner, can be in butt joint with a universal tool clamp, and has great economic benefits and application and popularization prospects.

The invention discloses a preparation method of ball clay for a ceramic body, which comprises the steps of preparing kaolin into slurry with the concentration of 15%, adding a dispersing agent sodiumsilicate, grading by a phi75-type cyclone to obtain underflow, and carrying out stripping and magnetic separation on the underflow to obtain coarse-grained kaolin; and carrying out magnetic separationon the kaolin secondary tailings to obtain the ceramic white sand. Coarse-grained kaolin and ceramic white sand are compounded to replace a raw ore soil raw material, the coarse-grained kaolin subjected to magnetic separation and the ceramic white sand subjected to magnetic separation are uniformly mixed according to the ratio of 3: 1-17: 3, the ball clay for the ceramic body is obtained throughthe steps of stripping, reselection, filter pressing and the like, and the single-sample whiteness value is not lower than 75% after calcination at the temperature of 1280 DEG C. According to the preparation method, the comprehensive cost of manpower, material resources, chemical material expenses and the like is reduced, the self-made general composite ball clay is adopted to replace natural rawore soil raw materials under the condition that the whiteness and the quality of daily porcelain are not affected, dynamic balance between raw material supply and consumption is achieved, and coordinated development of the ceramic industry and the non-metal industry is promoted.