99results about How to "Precise regulation" patented technology

This application discloses an intelligent reflective surface and a covert communication system, belonging to the field of wireless communication technology. The intelligent reflective surface includes multiple intelligent reflective surface units arranged in an array; each intelligent reflective surface unit includes: a first substrate, a second substrate, and a third substrate; a metal patch and a varactor diode, located on the side of the third substrate opposite to the second substrate; the metal patch includes a first patch and a second patch, and the varactor diode is located between the first patch and the second patch, with its negative and positive terminals electrically connected to the first patch and the second patch, respectively; a metal ground plane, located between the first substrate and the second substrate; a first bias line and a second bias line, located on the side of the first substrate opposite to the second substrate; the first bias line is electrically connected to the metal ground plane and the first patch, respectively, and the second bias line is electrically connected to the second patch. This application can achieve precise control of electromagnetic waves, reduce electromagnetic energy loss, improve energy transmission efficiency, suppress electromagnetic wave leakage, and improve communication covertness.

The application relates to the alloy preparation technical field and provides a preparation method of a high-performance tin-copper alloy wire, which comprises the following steps: tin and copper are smelted in a vacuum environment, and then cooled to obtain a tin-copper intermediate alloy; pure copper and the tin-copper intermediate alloy are smelted and refined in a vacuum environment, and then the alloy solution after the refining is drawn to prepare a tin-copper alloy rod; the tin-copper alloy rod is vacuum heat-treated, vacuumizing is stopped after the heat treatment temperature reaches 750-900 DEG C, nitrogen-oxygen mixed gas is filled, tin on the surface layer of the tin-copper alloy rod reacts with oxygen to generate tin oxide, heat treatment is carried out after the heat treatment, heating is stopped after the heat treatment is completed, and natural cooling is carried out to obtain a tin-copper alloy rod blank; the tin-copper alloy rod blank after the vacuum heat treatment is subjected to rough drawing treatment. The preparation method disclosed by the application obtains a high-strength high-conductivity copper-tin alloy wire through a vacuum heat treatment internal oxidation technology, and realizes accurate regulation and control of the composition of a copper-tin alloy wire blank.

This application discloses a digital twin control method for facility poultry farming environments based on deep spatiotemporal data fusion, relating to the field of poultry farming technology. It proposes a spatiotemporal sequence prediction model for environmental parameters using a bidirectional long short-term memory network (VMD-Attention-BiLSTM) that integrates variational mode decomposition and attention mechanisms, effectively overcoming the system's large time lag. A digital twin decision engine based on nonlinear model predictive control is constructed, and the optimal control sequence for energy consumption and environmental quality is solved under multiple constraints by establishing a joint state equation for thermodynamics and gas diffusion. Specifically, for complex winter conditions, a ventilation-heating collaborative game strategy based on real-time heat loss compensation is designed. Adaptive sliding mode control with radial basis function neural network compensation is introduced into the underlying execution unit, significantly enhancing the system's anti-disturbance capability. This achieves precise environmental control under complex conditions, improving poultry welfare and energy efficiency.

The utility model relates to the technical field of steam extraction flow stabilizing equipment of steam turbines, and particularly discloses a power station industrial steam extraction small-flow adjusting device which comprises a steam extraction main pipe and an adjusting pipeline, the steam extraction main pipe is communicated with the adjusting pipeline, a sunken U-shaped pipe is arranged in the middle of the adjusting pipeline, and an automatic adjusting valve is installed on a bottom pipeline of the U-shaped pipe. A filter and a drain pipe are further installed on the U-shaped pipe, the filter is located in front of the automatic regulating valve, and the drain pipe is located behind the automatic regulating valve; the design of the U-shaped pipe is adopted, steam conveyed by a low-pressure steam pipe network is collected and climbs through the U-shaped pipe, pressure relief and drainage are conducted through timing opening of the drainage pipe, air in the pipeline is discharged, the arrangement pressure and flow in the pipeline are adjusted to be more stable, and the problems of adjustment oscillation and large pressure fluctuation are avoided; an automatic regulating valve is adopted for starting control at the bottom full pipe position, the flexible regulating capacity of an energy system is improved, the resource utilization rate is increased, and economic benefits are created for companies.

The invention discloses an accurate flat steel positioning device for steel grating welding, and belongs to the technical field of stainless steel plate machining, the accurate flat steel positioning device for steel grating welding comprises a positioning conveying platform used for supporting a conveying belt support, and a distance adjusting structure used for adjusting flat steel is arranged above the conveying belt support. By arranging the distance adjusting structure, the two pieces of vertical flat steel can be fixed according to the preset distance, the transverse flat steel is automatically inserted into the corresponding grooves of the vertical flat steel to be welded, and the welding efficiency and the welding precision can be effectively improved.

The application provides a rotating hook, relates to the technical field of hooks, and comprises a hook body, a shell, a hoisting shaft, rotating shafts, a transmission mechanism and a switch mechanism, a hook seat capable of supporting the hook body is fixedly installed in the shell, the hoisting shaft is rotatably connected to the hook seat, the hook body is installed at the bottom end of the hoisting shaft, two rotating shafts are arranged, the two rotating shafts are rotatably connected to the two sides of the hook seat respectively, pulley mechanisms are installed on the two rotating shafts and are used for supporting the hook body to move up and down, the transmission mechanism is arranged on the hook seat and is used for driving the two rotating shafts and the hoisting shaft to rotate in linkage, and the switch mechanism is arranged on the shell and is used for controlling the start and stop of the transmission mechanism. Through the technical scheme, the technical problem that the hook rotating technology in the related art is difficult to consider precision, efficiency, structural simplicity and practicality and is difficult to meet the demand of modern port hoisting operation is solved.

The invention discloses a pressure-controllable clamping and dipping device and method for rock sample cementing treatment, and belongs to the technical field of rock sample tests. The device consists of a radial centering pressurizing module, an independent heating container and a hydraulic control system, the independent heating container and a saucepan with a built-in thermometer are fixed on a base, and a heating wire is arranged at the bottom of the base. An annular hydraulic oil groove is integrated in the base and connected with an internal pushing rod through multiple sets of hydraulic oil pipes, a sample contact plate is installed at the tail end of the pushing rod, and a supporting block is arranged on the outer side for positioning. The radial centering and pressurizing module is erected above the circumferential centering and pressurizing module; and an internal pushing rod is connected with the pressure transmission plate and the sample contact plate. A manual hydraulic pump is connected with an oil pump pressurization connector through a quick connector, a hydraulic oil pipe is provided with a high-precision pressure gauge and a control valve, a separator is laid in a sample contact area, and all the components cooperate to achieve cementing treatment of a rock sample at constant temperature and constant pressure.

The application belongs to the technical field of biological medical materials, and discloses a polydopamine modified modified nano-graphyne and a preparation method and application thereof. In the method, the polydopamine coating is combined with the nano-graphyne for the first time to construct a GDY@PDA composite system, and the core defects of the blocky graphyne, such as easy agglomeration, poor water solubility and insufficient biocompatibility, are solved. The graphyne-based material is applied to the near-infrared two-region photothermal regulation of neural cell calcium influx for the first time, the calcium ion channel is activated through the local thermal effect of the material, and precise, remote and reversible calcium influx regulation is realized; the limitation that the traditional biocompatibility modification is easy to fall off and difficult to functionalize is broken through, the polydopamine modification makes the material have both photothermal efficiency and biological safety, and the application of the graphyne in the treatment of neural diseases (such as neural cell injury repair) is expanded.

The invention discloses an intelligent crystal growth regulation and control system based on real-time oxygen and carbon detection, and particularly relates to the technical field of crystal growth regulation and control. The system comprises an oxygen-carbon and growth state signal acquisition module, a crystal growth stage judgment module, an oxygen-carbon detection signal calibration module, a crystal growth environment regulation scheme generation module and a growth environment regulation and control execution module, wherein the crystal growth stage judgment module further comprises a signal reference extraction sub-module and a difference comparison and adjustment sub-module; according to the invention, oxygen-carbon signals and growth state related signals are synchronously collected, growth stages are discriminated in combination with growth duration and heating power, oxygen-carbon detection signals are calibrated by adopting corresponding standards for different stages, the change rate is calculated according to the calibrated signals, and an environment adjustment scheme is generated by matching an adjustment proportion, so that the growth environment is accurately regulated and controlled; the accuracy of detection signals is improved, the stability of crystal growth parameters is guaranteed, the crystal growth quality is optimized, and the regulation adaptability and pertinence are enhanced.

This disclosure relates to the field of titanium extraction technology from blast furnace slag, and particularly to a method for controlling the titanium carbide content using iron oxide powder, comprising the following steps: Step 1, when the slag generated by the carbon-blending of titanium-containing blast furnace slag reaches the smelting endpoint, a sample is taken to detect the mass percentage of titanium carbide in the slag; Step 2, when the mass percentage exceeds a set threshold, iron oxide powder is added to the slag to control the mass percentage within a reference range. This disclosure solves the problem of easy bending of titanium slabs with large aspect ratios during the upsetting process. This disclosure also solves the problem of high TiC content in existing titanium-containing blast furnace slag carbon-blending processes. By adding iron oxide powder to react with excess TiC in a directional manner, the TiC content can be stably controlled within a reference range, effectively reducing slag viscosity, ensuring smooth slag discharge, and avoiding safety hazards such as equipment blockage; at the same time, it improves the temperature control effect of the subsequent boiling chlorination reaction, and improves the efficiency and quality of subsequent titanium resource recovery.

The application discloses application of tamibarotene in preparation of a medicine for preventing and / or treating liver fibrosis, and belongs to the technical field of biological medicine. The application finds that tamibarotene has a significant anti-liver fibrosis effect for the first time. Experimental results show that in two kinds of liver fibrosis animal models induced by CCl4 and TAA, tamibarotene can significantly down-regulate the expression of alpha-SMA and type I collagen, reduce the liver inflammatory response, and improve liver function. In particular, the anti-fibrosis effect of tamibarotene is significantly better than that of RARbeta selective agonist KCL-286 and RARalpha selective agonist Am580, and an unexpected technical effect is achieved. The application provides a new medicine selection for the treatment of liver fibrosis, and has a good clinical application prospect and development value.

This invention discloses a multimodal real-time control system and method for novel power systems. Relating to the field of power system technology, it solves the problem of achieving precise control under complex and variable operating conditions. This invention deeply mines monitoring parameters with data correlations within the power system, accurately identifying the trend characteristics between correlated monitoring parameters from historical operating data. This process not only considers the correspondence between numerical changes of monitoring parameters but also calculates the precise change value BH based on detailed analysis of numerical control segments and auxiliary data segments, forming a comprehensive record of trend characteristics. This allows for full consideration of multiple influencing factors during actual control, avoiding control deviations caused by ignoring changes in correlated parameters, thereby greatly improving the accuracy of the multimodal control process and ensuring the stable operation of the power system.

The invention relates to the technical field of water treatment equipment multi-dimensional management, and discloses a water treatment equipment multi-dimensional management system based on an intelligent water affair cloud platform, and the system comprises the steps: calculating a dynamic alpha factor in real time through on-site off-gas detection data and a clear water reference mass transfer coefficient, and carrying out the real-time calculation of a dynamic alpha factor based on the monotonous relation between a bubble stagnation cap and mass transfer resistance; and performing inversion to obtain continuous parameters for quantifying the gas-liquid interface state. And further calculating the real-time sensitivity of the parameter to the air volume of the air blower, constructing an air volume and mass transfer nonlinear model, and solving the target air volume with the minimum energy consumption under the condition of meeting the technological oxygen demand constraint condition. And finally, the target air volume serves as a control instruction to be issued, meanwhile, interface recovery time is output according to the time change rate of the gas-liquid interface parameters, and dynamic energy saving and interface state collaborative management of the water treatment aeration system is achieved.

The invention discloses a polypeptide module for promoting protein expression. The polypeptide module is polypeptide with an amino acid sequence as shown in SEQ ID NO: 2, wherein the polypeptide is formed by connecting a C end of a saccharomyces cerevisiae source signal peptide alpha-factor Pro section with two acidic residues EA; the composite signal peptide is formed by connecting a signal peptide OST1 from saccharomyces cerevisiae to the polypeptide module at the C end, the fusion expression of the composite signal peptide and the exogenous recombinant protein in saccharomycetes can improve the expression and secretion of the exogenous recombinant protein, and the composite signal peptide has popularization and application prospects.

The invention provides an intelligent control method for heat balance in the aluminum alloying process. The intelligent control method comprises the steps that S1, the target aluminum content of molten steel in an RH refining device, the total mass of the molten steel and the specific heat capacity of the molten steel are obtained; s2, according to the actual production state and the production steel type, the oxygen value of the molten steel before alloying and the refining entering temperature are collected according to the time sequence, and the aluminum yield is calculated; s3, based on the aluminum yield, heat balance operation judgment conditions are set, and if yes, calculation is conducted according to an empirical formula; if yes, executing the step S4; s4, calculating the heat effect of the aluminum dissolving process, the heat effect of the aluminum melting process and the heat effect of the aluminum-oxygen reaction; s5, calculating the total heat effect; s6, the temperature change value of the molten steel system in the alloying process is calculated; and S7, according to the difference value between the temperature change value of the molten steel system in the alloying process and the target refining final temperature, a compensation heating or cooling instruction is output, the actual final temperature is made to be consistent with the target value, the instruction is automatically executed to complete aluminum alloy affiliation, and the temperature-controlled molten steel with the aluminum content reaching the standard is obtained.

The invention belongs to the technical field of mirror image additive manufacturing of a composite material component, and relates to a mirror image additive manufacturing method of a composite material component considering an interlayer heat effect, which comprises the following steps of: firstly, determining a geometric central surface of the component, generating a mirror image symmetry printing path and arranging double printing tail ends; then the double printing tail ends are controlled to synchronously move along the printing path so as to deposit the strip layer by layer from the geometric center to the two sides; and in different deposition processes, the thermal power Q of the two heating devices conveyed to the strip is adjusted along with the change of the number of deposition layers, so that the temperature of the strip consolidation area is stabilized at the target temperature. According to the method, the temperature of a strip consolidation area can be stabilized at a target value, the interlayer quality consistency of the component is guaranteed, and the forming precision and the performance stability of the composite component are improved.

This invention discloses a stable combustion control system based on a multi-dimensional furnace combustion measurement method, specifically relating to the field of furnace combustion measurement. This includes multi-dimensional sensor data acquisition, feature parameter quantification and extraction, combustion stability modeling, intelligent graded stable combustion control, iterative optimization of control effect, and dynamic evaluation of combustion state. Multi-dimensional sensor data acquisition involves synchronously acquiring data through an array of sensors. Feature parameter quantification and extraction involves preprocessing the acquired data to extract key feature parameters. Combustion stability modeling involves constructing a quantitative evaluation model of the combustion stability index based on the key feature parameters. Intelligent graded stable combustion control involves triggering a three-stage direct injection response mechanism for the fuel gun based on the combustion stability index, combined with an adaptive energy matching algorithm to dynamically adjust the stable combustion energy injection. This invention, through a multi-dimensional sensor array and feature extraction algorithm, achieves advanced identification of early combustion deterioration, solving the problem of lag in single flame detector monitoring.

The utility model discloses an anti-condensation high-voltage switch cabinet sealing structure, which belongs to the technical field of high-voltage switch cabinets, and is characterized in that the anti-condensation high-voltage switch cabinet sealing structure comprises a cabinet body, the front side of the cabinet body is rotatably connected with a cabinet door, and a sealing assembly is arranged between the cabinet door and the cabinet body. The trapezoid sealing strip, the reinforcing sealing ring and the square sealing strip cooperate with one another to form a multiple sealing structure, the trapezoid sealing strip is embedded in a groove of the cabinet body and tightly attached to the cabinet door, and the reinforcing sealing ring is clamped into a reinforcing groove of the trapezoid sealing strip, so that the sealing effect is further enhanced, moisture is effectively prevented from invading from the joint of the cabinet body and the cabinet door, and the service life of the cabinet door is prolonged. The square sealing strip located on the inner side provides secondary sealing guarantee, the sealing performance of the contact position of the cabinet body and the cabinet door is greatly improved, the possibility that external moisture enters the cabinet body is reduced from the source, and then the condensation generation probability is reduced.

The application relates to the technical field of intelligent transportation and carbon governance, in particular to a passenger car carbon emission monitoring and regulation system and method based on multi-source spatio-temporal data. The application solves the problem of scattered and inconsistent data by preprocessing and uniformly mapping multi-source spatio-temporal data. A three-dimensional carbon emission calculation model of vehicle-space unit-time period is constructed to realize accurate calculation of single-trip carbon emission of a single vehicle and positioning of high-carbon emission hotspots. A clustering algorithm is used to complete differentiated division of user groups. A dynamic early warning threshold is generated based on a warning threshold prediction model, regional carbon emission targets and historical data to reduce false positives and false negatives. A warning type-policy tool-adaptation object mapping rule library is established, and a regulation strategy is generated by combining early warning signals and real-time data to realize automatic and accurate generation of regulation strategies from problem identification. The model parameter, early warning threshold and mapping rule are optimized by using policy implementation effect data to form a monitoring, early warning, regulation, optimization closed-loop management and realize accurate regulation.

This invention discloses a zinc thiocate modified copper current collector for electrodeless lithium metal batteries and its preparation method. Thioctic acid and zinc acetate are dissolved in solvents, and a composite solution is prepared by the coordination interaction between zinc ions and the carboxyl groups of thiocate. This composite solution is then spin-coated onto the surface of the copper current collector to form an ordered protective coating. This invention synergistically regulates the interface through the dual functions of zinc ions: firstly, zinc ions act as divalent coordination centers, cross-linking with thiocate molecules to construct a stable and regularly arranged protective coating; secondly, zinc ions act as lithiophilic nucleation sites, reducing the lithium nucleation overpotential, inducing uniform lithium ion deposition, and significantly inhibiting lithium dendrite growth. The modified current collector of this invention achieves a synergistic improvement in interface stability and electrochemical activity, enabling the battery to possess excellent cycle life and high safety, providing a novel interface design strategy for high-performance electrodeless lithium metal batteries.

The invention discloses a self-reconfiguration constant force arm and a self-reconfiguration variable rigidity constant force auxiliary exoskeleton, and relates to the technical field of wearable exoskeleton robot driving. Comprising a large arm shell, a small arm, an adjusting motor, a gear, a linear groove cam provided with a plurality of linear grooves, a pulley adjusting assembly, a pre-tightening force adjusting assembly and the like. The second gear is provided with a plurality of guide grooves, and a pin shaft of the movable pulley correspondingly penetrates through the linear groove and the guide grooves. A controller is linked with an adjusting motor based on load pressure collected by a forearm pressure sensor, changes the rotation angle of a second gear through gear transmission, and is linked with movable pulleys to move in a linear groove under the guidance of a guide groove, so that the number of the movable pulleys entering an effective working state is changed, the joint rotation rigidity is improved, and the constant force output range is expanded. And meanwhile, the pre-tightening force adjusting assembly is linked to adjust the tightness of the rope, and the pre-tightening force within the target range is output. A fixed-configuration constant-force mechanism is converted into a variable-stiffness structure capable of being autonomously reconstructed, and wide-range accurate adjustment of constant-force output is achieved.

This invention relates to the field of new energy power generation technology, and in particular to a method, device, terminal, and storage medium for a micro-inverter self-organizing network. The method first acquires multiple data packets; then determines the current location based on the multiple data packets; finally, it sends the current location and joins the communication network according to a received network access instruction. In this embodiment, the location information sent by an already networked inverter is used to locate an inverter awaiting network access. After the inverter completes its location, it sends the location information to the master station, which assigns an identification code and communication time node. The entire process requires no manual intervention, resulting in high efficiency. Because the grid node where the inverter is located can be determined, the master station can adjust the grid operation status based on the inverter's state, leading to more accurate control.

The invention relates to the technical field of coal-fired power plant boilers, and provides a boiler instantaneous energy quality accurate regulation and control rapid load changing system and a control method.The system comprises a main steam system and a reheat steam system and further comprises a first bypass steam system, a second bypass steam system and a control unit; an inlet of the first bypass steam system is connected to a water-cooled wall outlet of the main steam system, and an outlet of the first bypass steam system is connected to a platen superheater inlet of the main steam system; an inlet of the second bypass steam system is connected to a low-temperature reheater outlet of the reheat steam system, and an outlet of the second bypass steam system is connected to a high-temperature reheater inlet of the reheat steam system; the control unit is configured to adjust the steam working medium flow of the first bypass steam system and the second bypass steam system according to a load instruction during the unit load increasing period. According to the scheme, the transformation cost is low, the implementation difficulty is small, and a feasible technical path is provided for an active-service unit to achieve rapid load change and energy quality accurate regulation and control standard reaching.

The utility model belongs to the technical field of automobile shock absorber, specifically relates to a linear motor shock absorber, which comprises an electromagnetic coil, a permanent magnet, a core shaft and a sleeve outside the electromagnetic coil, one of the electromagnetic coil and the permanent magnet is connected on the outer side wall of the core shaft, and the other is arranged on the inner side wall of the sleeve, further comprises a displacement sensor, the upper end of the sleeve is equipped with a guide sleeve, the lower end of the sleeve is equipped with a lower limit plate, the core shaft is located inside the guide sleeve and protrudes upwards, a first sliding bearing and a sealing ring located on the top surface of the first sliding bearing are arranged between the core shaft and the guide sleeve, the first sliding bearing and the sealing ring are fixedly arranged on the inner side wall of the guide sleeve, and the first sliding bearing and the sealing ring are in sealed contact with the outer side wall of the core shaft and axially slide. The electromagnetic coil and the permanent magnet are always located in the sleeve, the sealing ring and the core shaft are matched to seal the through hole on the guide sleeve, impurities are prevented from entering the sleeve to damage the electromagnetic coil and the permanent magnet, and the working reliability of the linear motor shock absorber is improved.

The application relates to the technical field of data transmission, in particular to a socket control system based on an intelligent home Internet of Things, which comprises a central control unit used for centrally receiving instructions, an identification unit used for identifying characteristic information of the instructions, a conversion unit used for converting the identified instructions into corresponding electric signals, a transmission unit used for transmitting the electric signals, a smart socket used for receiving the electric signals and performing corresponding operations based on the received electric signals, and a checking unit used for determining whether control of the socket is qualified according to the running state of the smart device and determining unqualified reasons for unqualified cases. The application effectively improves the sensitivity of the socket control system to instruction perception.

The invention relates to the technical field of power electronics, in particular to a multi-element heterogeneous hydrogen production power supply and a control method. The power supply includes a main branch and an auxiliary branch. The main branch comprises a first rectification circuit and a Buck converter. The input end of the first rectifying circuit is connected with a first output winding of the transformer, the output end of the first rectifying circuit is connected with the input end of the Buck converter, the output end of the Buck converter is connected with the first end of the direct-current bus, and the main branch is used for providing steady-state power. The first rectifying circuit is an uncontrolled rectifying circuit. The auxiliary branch comprises a second rectification circuit and a full-bridge circuit. The input end of the second rectifying circuit is connected with a second output winding of the transformer, the output end of the second rectifying circuit is connected with the input end of the full-bridge circuit, the output end of the full-bridge circuit is connected with the first end of the direct-current bus, and the auxiliary branch is used for transmitting fluctuating power or alternating-current excitation. According to the embodiment of the invention, balance between steady-state high efficiency and dynamic quick response can be achieved.

The application discloses a macrobrachium rosenbergii three-dimensional flat plate recirculating aquaculture system and method, which comprises a system support, a three-dimensional flat plate aquaculture unit and a recirculating water treatment unit. The three-dimensional flat plate aquaculture unit comprises a plurality of flat plate water tanks arranged on the system support. A water inlet pipeline is arranged above the top of the flat plate water tank and supplies water to the flat plate water tank in a downward spraying manner. A water level control overflow port is arranged on the side wall of the flat plate water tank. A sewage discharge hole array is arranged on the bottom of the flat plate water tank. A water collecting tank is fixedly connected to the outside of the bottom of the flat plate water tank. The sewage discharge hole array is in communication with the water collecting tank. The water collecting tank and the overflow port are connected to a recirculating water pipeline. The recirculating water pipeline is connected to the input end of the recirculating water treatment unit. The output end of the recirculating water treatment unit is connected to the water inlet pipeline, thereby forming a closed loop circulation, and the specific growth rate and the weight gain rate of the macrobrachium rosenbergii are greatly improved.

The utility model discloses a kind of thin permanent magnet brake, including by flange, armature, inner magnetic pole, permanent magnet, magnetic shell coaxial setting composition brake body, the flange is equipped with pre-stretching elastic element between armature, the elastic element continuously pulls armature and moves to flange direction;Permanent magnet and coil are equipped with magnetic shell, the coil diameter is greater than permanent magnet diameter, the permanent magnet is placed inside coil;The permanent magnet is also fixedly connected inner magnetic pole, the inner magnetic pole, permanent magnet, magnetic shell form accommodating groove, the coil is equipped in accommodating groove, the inner magnetic pole and magnetic shell are equipped with at least one gap. The utility model does not destroy the appearance size of brake geometric body, can greatly compress brake thickness, output brake force is big, and performance is more stable.

This invention discloses a bio-fermentation tank system for the harmless treatment of livestock and poultry manure and its usage method, belonging to the field of manure bio-fermentation treatment technology. The system includes an inclined and rotatable fermentation tank, an openable and closable cover, and supporting components. An installation plate with microbial filler holes is embedded inside the tank, with the holes pre-filled with adsorption substrate to fix the microbial community. A rotatable turbulence component is provided, which pushes the manure into the cutting chamber, where it is squeezed and segmented before flowing back to the main chamber, achieving cyclic treatment. The system is equipped with an independent gas control structure, supporting switching between aerobic and anaerobic fermentation modes. Through the synergistic effect of tank rotation and internal turbulence, thorough mixing of manure, mechanical cutting, and slow-release contact with the microbial community are achieved, significantly improving degradation efficiency and harmless treatment effect. This invention solves the problems of uneven mixing, low microbial activity, poor solid-liquid separation, and incomplete resource conversion in traditional processes, and is suitable for the efficient, harmless, and resource-based treatment of large-scale manure.

The invention belongs to the technical field of compositions of high-molecular compounds, and discloses a polyurethane-based light composite material and a preparation method thereof. According to the composite material, a bio-based dynamic foaming regulating agent based on a carboxymethylated tannic acid derivative is introduced to have a synergistic effect with a micro-fluidic nucleation guide liquid, so that pH response triggering and spatial positioning nucleation are realized in a micro-fluidic chip, and a highly uniform closed-cell structure is formed. The obtained material is high in density and compression strength batch stability, low in heat conductivity coefficient, free of halogenated hydrocarbon and environmentally friendly. The invention provides a polyurethane-based light composite material which is controllable in structure, stable in performance and environment-friendly and a preparation method of the polyurethane-based light composite material. According to the method, through the synergistic effect of a bio-based dynamic foaming regulation and control system and a micro-fluidic nucleation guide technology, precise molding of a foam structure from a nucleation source is achieved, the inherent problem of a traditional foaming process between uniformity and greenness is broken through, and a technical means is provided for green manufacturing of a high-performance light composite material.