26results about How to "Achieve coupling" patented technology

The invention belongs to the technical field of sewage treatment, and discloses a DO-ORP coordinated regulation artificial tidal food web sludge in-situ reduction and phosphorus recovery method. Aiming at the problems of high energy consumption, serious phosphorus resource loss and the like of traditional sludge treatment, a multi-stage food chain consisting of microorganisms, protozoa and metazoan is implanted by constructing an artificial tidal environment with periodic alternation of wetting and drying; according to the method, the metabolic activity of sludge hydrolysis flora and phosphorus-accumulating bacteria is activated by utilizing cooperative regulation and control of DO concentration and ORP, microbial extracellular polymeric substances are triggered to be depolymerized by adopting tidal periodic oscillation, in-situ reduction of sludge biomass is realized by combining a food web cascade predation effect, and phosphorus is synchronously removed by virtue of an anaerobic phosphorus release-aerobic phosphorus uptake coupled struvite crystallization process. The method is suitable for treating the excess sludge of a municipal sewage treatment plant, and the high-purity magnesium ammonium phosphate fertilizer is produced while the dehydration energy consumption is reduced by 40%.

The application provides a node device anti-theft device for hard ground coupling, which comprises a connecting main plate, a first side of the connecting main plate is used for being fixed to a hard ground, and a coupling interface is arranged on a second side of the connecting main plate, which is opposite to the first side; a node device is fixed on the connecting main plate through the coupling interface; wherein the first side of the connecting main plate is matched with the ground shape of the hard ground to realize the fixing and coupling between the node device and the hard ground. Through the device, the eSeis node device can be stably and effectively coupled with the hard ground in a complex environment, and the loss of the device can be effectively prevented.

The application discloses a kind of microscale microplastic migration occurrence multi-physical field coupling simulation method, belong to ecological environment field.The method aims at solving the problem that existing microplastic migration model ignores interface adsorption process, is difficult to couple the action of multiple physical fields and is not suitable for the problem of insufficient adaptability to heterogeneous environment.Its main points are: in the Lagrangian framework, by constructing seepage field, and comprehensively calculating the stokes drag, dielectrophoresis force and Brownian force suffered by microplastic particles to track its movement, while explicitly introducing the adsorption and desorption between particles and pore wall, to simulate the migration trajectory and occurrence state of microplastic in heterogeneous porous medium.The application provides a high-precision simulation tool for revealing the environmental fate and health risk of microplastics in groundwater systems.

The application provides a fermentation mechanism with multi-layer tray fixation, relates to the fermentation technical field, and comprises a hydraulic damping and oil path locking system formed by the cooperation of a groove, a piston block and a push spring; and a linkage mechanism which converts linear motion of a tray into a hydraulic drive signal by the cooperation of a fixing frame, the tray, a moving wheel, a fixing wheel, a belt, a rotating shaft, an intermediate sleeve, an extension rod, an extension sleeve, a double pulley and a tension spring. The mechanism automatically limits the speed by the flow damping of hydraulic oil when the tray is pulled out, and the oil path is locked by the cooperation of the elastic sheet and the groove and the blocking of the intermediate groove by the sealing sleeve when fixation is needed, so that the dough displacement or falling caused by too fast pulling out of the tray is effectively avoided, and the stability and safety of the fermentation operation are significantly improved.

The application discloses an insect exoskeleton morphological layup composite panel, a sandwich structure and a preparation method. The sandwich structure comprises two pieces of bionic layup composite panels and a piece of aramid honeycomb core layer. The bionic layup composite panel draws lessons from the spiral stacking microstructure of the insect exoskeleton, the layup design considers the symmetry and balance requirements of the composite material, a fixed rotation angle is introduced between adjacent fiber layers, and the rotation angle is taken as a period of 180 degrees, and after a plurality of periods are laid and heat-pressed and cured, the bionic layup composite panel is obtained. The bionic layup design effectively reduces the interlaminar shear stress of the composite material, weakens the inherent anisotropy of the composite material, and improves the transverse bearing capacity and impact resistance. The bionic layup composite panel and the aramid honeycomb core layer have the advantages of high specific strength, high specific stiffness, impact energy absorption, vibration and noise reduction, electromagnetic shielding and the like, and a structure and function integrated material with more excellent comprehensive performance is obtained, and the structure and function integrated material is expected to be widely used in main load-bearing structures of various spacecrafts.

The utility model belongs to the technical field of separation, and particularly relates to an ethyl acetate and butanone separation device, which comprises a butanone separation tower, an ethanol separation tower and an ethyl acetate separation tower which are connected in sequence, in the utility model, the tower top produced liquid of the ethyl acetate separation tower returns to the butanone separation tower, so that the purity of the product can be further improved; the gas phase of the butanone separating tower is used as a heat source of a reboiler at the bottom of the ethyl acetate separating tower, the gas phase at the top of the ethyl acetate separating tower is used as a heat source of a reboiler at the bottom of the ethanol separating tower, heat coupling can be realized between the rectifying towers with different operating pressures, the energy consumption in the rectifying and separating process is further reduced, and the method has higher operability.

The invention discloses a semiconductor laser-based heterogeneous integrated coupling structure and a preparation method thereof, and belongs to the technical field of optoelectronic integrated devices. The heterogeneous integrated coupling structure comprises a chip and a laser; the chip is provided with a bonding groove, a silicon nitride conical waveguide and a silicon nitride single-mode waveguide, and the wide end of the silicon nitride conical waveguide is connected with the silicon nitride single-mode straight waveguide; the laser includes a contact layer, a ridge waveguide, a first tapered waveguide, and a second tapered waveguide. According to the invention, a double-layer tapered waveguide structure composed of a first tapered waveguide and a second tapered waveguide is designed, a silicon nitride tapered waveguide and a silicon nitride single-mode waveguide are arranged on a chip, and the second tapered waveguide and the silicon nitride tapered waveguide are optically interconnected in a vertical coupling manner; the problem of mode adaptation of an existing laser and a silicon nitride chip can be effectively solved, efficient on-chip coupling of heterogeneous integration of the laser is achieved, and the coupling efficiency of the heterogeneous integration coupling structure is improved.

This invention relates to the field of tunnel and underground engineering safety monitoring technology, and discloses a method and system for graded early warning of water-soil coupled disasters in soft strata tunnels based on mechanism inversion. The method includes: using multi-scale coupling technology to parametrically couple a pre-constructed macroscopic continuous medium model and a microscopic constitutive model, and generating a mechanism inversion model based on the parameter coupling results to simulate the water-soil coupled disaster response of the tunnel surrounding rock; inputting pre-processed historical monitoring data into the mechanism inversion model, iteratively adjusting the parameters of the mechanism inversion model through inverse analysis to generate a combination of inversion parameters; and inputting pre-processed real-time monitoring data into the corrected mechanism inversion model. This invention, through local mesh refinement and erosion interface mapping based on level set functions, accurately embeds a microscopic constitutive model capable of describing soil particle migration and pore evolution into high-risk areas of the surrounding rock, achieving coupling of macroscopic and microscopic physical processes at key locations.

The application discloses a kind of implementation dissolution-precipitation dynamic coupling's saline aquifer CO2 mineralization storage pore scale numerical simulation method, comprising: constructing geometric model under pore scale;The flow velocity distribution and pressure distribution of geometric model in time and space are calculated;Reaction migration model of the CO2 mineralization storage of saline aquifer is constructed;Kinetics reaction rate equation and porosity dynamic evolution equation are established, ion product-solubility product judgment statement is introduced, the reaction migration model is solved, and CO2 deep saline aquifer mineralization storage reaction migration numerical simulation is completed.The application is coupled by DBS equation and ADE equation, realizes the solution reaction migration numerical simulation under pore scale, simplifies the complex reaction migration numerical simulation solving process;In the process of solving reaction migration, dissolution and precipitation process are coupled simultaneously, more close to real situation;It is suitable for operation under a variety of working conditions, extracts solute transport and dissolution-precipitation rule under different conditions, and provides support for experimental research.

This invention relates to the field of medium- and low-voltage distribution network technology, and discloses a spatiotemporal multidimensional coordinated control method for source-load-storage in medium- and low-voltage distribution networks that considers flexibility margin. The method includes: defining flexibility margin and establishing a spatiotemporal distribution matrix of flexibility margin; establishing a step-by-step reservation and transmission mechanism for flexibility margin and a cross-regional real-time mutual assistance mechanism for flexibility margin; and imposing time and spatial constraints on the spatiotemporal distribution matrix of flexibility margin; and introducing the alternating direction multiplier method to solve for the optimal coordinated scheduling scheme. By uniformly quantifying flexibility resources through the spatiotemporal distribution matrix of flexibility margin and imposing time and spatial constraints on them respectively, and then introducing the alternating direction multiplier method for joint spatiotemporal solution, the optimal coordinated scheduling scheme can be ensured to be optimal in both time and spatial dimensions, filling the theoretical gap in spatiotemporal coordinated control of distribution networks.

The application discloses an electric heat pump mixed water heater and an evaporator, and relates to the technical field of water heaters. The electric heat pump mixed water heater comprises a shell, an electric heating system, a heat pump system and a fan. The shell is provided with a first air inlet, a second air inlet and an air duct. The first air inlet is arranged to face a first direction, and the second air inlet is arranged to face a second direction. One of the first air inlet and the second air inlet is an air inlet, and the other is an air outlet. A water tank liner is arranged in the shell. The electric heating system is arranged in the shell and comprises an electric heating element. The electric heating element is arranged in the water tank liner. The heat pump system is arranged in the shell and comprises a condenser and an evaporator. The condenser is arranged in heat exchange with the water tank liner. The evaporator is arranged in the air duct and close to the first air inlet. The evaporator is arc-shaped and is arranged to bend towards the second air inlet for cooling the air entering the shell from the air inlet. The fan is arranged in the air duct. The application can reduce the space occupied by the evaporator and realize more efficient heat exchange.

This application discloses a pump combiner and an erbium-doped fiber amplifier, which achieves coupling of pump light and signal light with a large mode field, improving coupling efficiency. The pump combiner includes a cladding structure, a first optical fiber, and a second optical fiber. The first optical fiber penetrates the cladding structure and extends from a first port and a second port. The first port is located on a first end face of the cladding structure, and the second port is located on a second end face of the cladding structure, with the first and second end faces parallel to each other. The area of ​​the first end face is larger than the area of ​​the second end face. The second optical fiber is connected to a third port, and the orientation of the third port is different from that of the first and second ports. The signal light propagates along the first optical fiber from the first port to the second port. The first pump light enters the cladding structure from the third port along the second optical fiber and, after reflection by a reflective surface, propagates towards the second port. The second port is used to output the coupled light of the first pump light and the signal light.

The application relates to the computer technical field, in particular to a rotating target detection method and device based on Gaussian distribution. The method comprises the following steps: acquiring image data, labeling a target in the image data by using a rotating frame, and constructing a training data set and a test data set according to the image data; constructing a target pre-detection model according to a deep residual network, a feature pyramid network, a classification subnetwork and a regression subnetwork; using a two-dimensional Gaussian distribution to replace the rotating frame to represent the target, and designing a loss function based on the two-dimensional Gaussian distribution; training the target pre-detection model according to the loss function and the training data set, obtaining a rotating target detection model; and testing the test data set according to the rotating target detection model, obtaining a final target detection result. The method can solve a series of problems, such as angle periodicity, caused by a rotating angle and affecting positioning accuracy.

The invention discloses a mathematical model-based wave visual simulation method and simulation system. The mathematical model-based wave visual simulation method comprises the following steps of: constructing a consistent wave spectrum model; initializing a wave spectrum model, and calculating and generating a wave amplitude array; acquiring the position, speed and course of the ship, and calculating encounter frequency; a wave height field is calculated and generated, and the height of encountered waves is calculated according to the position of the ship; wave force is calculated, the wave height field is accelerated through a GPU to generate a wave height map, and a wave scene is generated; calculating the position, speed, course and attitude of the ship, and updating the three-dimensional model display of the ship; according to the method, the problem that visual simulation and a dynamic response model are disjointed is effectively solved, the ship motion visual scene is highly consistent with a physical calculation result, immersive ship motion visual scene experience can be provided for a user, real interaction between a ship and waves can be accurately simulated, and the ship motion visual scene experience is improved. The practical value of visual simulation in the fields of ship control system design, seakeeping analysis and sailor safety training is improved.

This invention discloses a thermal management system for a lithium iron phosphate (LFP) and vanadium redox flow coupled energy storage unit, relating to the field of energy storage battery thermal management. The system includes a refrigerant storage tank, a compressor, a heating wire, a LFP battery, an electromagnetic four-way reversing valve, a first three-way reversing valve, a condenser, a first fan, a second three-way reversing valve, an expansion valve, a second fan, a third fan, an evaporator, a fourth fan, a positive electrode electrolyte storage tank, a negative electrode electrolyte storage tank, a first circulation pump, a second circulation pump, and a fuel cell stack. The refrigerant storage tank, compressor, electromagnetic four-way reversing valve, condenser, expansion valve, and evaporator form a refrigerant circulation loop through pipelines. This invention employs the aforementioned thermal management system for a LFP and vanadium redox flow coupled energy storage unit, achieving coupling between the LFP and vanadium redox flow thermal management systems. Simultaneously, the activation of the heating wire and the directional migration of waste heat from the LFP battery ensure efficient and stable operation of the coupled energy storage unit in cold environments.

The application belongs to the technical field of fine chemical industry, and discloses a synthesis method of malonic acid ester compounds, which comprises the following steps: under the action of a heterogeneous catalyst, cyanoacetic acid and alcohol are subjected to hydrolysis-esterification reaction, and after the reaction is completed, post-treatment is performed to obtain the malonic acid ester compounds; the heterogeneous catalyst comprises a carrier and an active component; the active component comprises an ionic liquid and an active metal; the carrier is an ordered mesoporous material; and the active metal is an alkaline earth metal. The method can obtain malonic acid ester products, solves the problems of low yield, serious equipment corrosion and large amount of "three wastes", realizes efficient synthesis of malonic acid ester compounds, improves production efficiency, and greatly reduces environmental pollution.

The invention relates to the field of communication, and provides a filter, which comprises a first resonator, the first resonator at least has two resonance modes of a TE mode and a TM mode, the first resonator comprises a resonator shell and a dielectric resonance piece arranged in the resonator shell, and the dielectric resonance piece is connected to a first wall of the resonator shell; the filter further comprises a first coupling structure arranged in the resonator shell, the two opposite ends of the first coupling structure are both grounded, the first coupling structure comprises a first coupling part and a second coupling part, one end of the second coupling part is connected to the end, away from the central axis of the dielectric resonance piece, of the first coupling part, and the other end of the second coupling part is grounded. The first coupling part intersects in the circumferential direction of the dielectric resonance part, and the second coupling part intersects in the radial direction of the dielectric resonance part, so that a TE mode and a TM mode of the first resonator are coupled. According to the filter, the TE mode and the TM mode of the first resonator can be coupled through the first coupling structure which is simplified and optimized, the coupling effect is good, and simulation design of the filter can be facilitated.

The invention provides a reservoir area floating type photovoltaic array anchoring system coupled with ecological water purification. The reservoir area floating type photovoltaic array anchoring system comprises floating type photovoltaic array units, a net-shaped main cable system, a multifunctional ecological anchor chain unit and multiple demersal fixing devices. The floating photovoltaic array unit is arranged on the water surface of a reservoir and serves as a power generation main body of the system; the net-shaped main cable system is connected below the floating photovoltaic array units to form a flexible connection and global load transmission network; the upper end of the multifunctional ecological anchor chain unit is connected to the net-shaped main cable system, and the multifunctional ecological anchor chain unit is internally integrated with a porous columnar carrier and is filled with a slow-release ecological mineral material; the benthic fixing device provides final anchoring force for the system. According to the invention, an anchoring solution which is high in reliability and adapts to a complex hydrodynamic environment is provided for floating photovoltaic in a reservoir area, multifunctional coupling of photovoltaic power generation, efficient utilization of a water surface space and ecological purification of a reservoir water body is synchronously realized, and comprehensive benefits and environmental friendliness of the system are remarkably improved.

The application discloses a power backflow and confluence transmission system for a tracked platform, which comprises a gearbox, a differential motor, a differential gear ring, a left sun gear, a right sun gear, a planetary gear and a reverse mechanism; the differential gear ring, the left sun gear and the right sun gear are coaxially connected to the gearbox, the planetary gear is rotationally connected to the differential gear ring, and the left sun gear and the right sun gear are symmetrically engaged on the two sides of the planetary gear; the differential motor is connected in transmission with the differential gear ring, the left sun gear is connected with a left electric transmission mechanism, and the right sun gear is connected with a right electric transmission mechanism in sequence. The application is applied to the field of engineering machinery, simplifies the structure, and can realize dynamic adjustment of backflow power, can dynamically change the output power by adjusting the output torque of the differential motor according to the characteristics that the differential bevel gear in the differential axle has a large reverse force and is equal to half of the output force of the intermediate differential motor, and realizes efficient differential control.

This invention belongs to the field of oil and gas field wastewater treatment, and specifically relates to a shale gas fracturing flowback wastewater treatment system and method, including treatment units such as equalization and homogenization, dissolved air flotation, multi-stage chemical sedimentation, coagulation separation, electrochemical catalytic oxidation, membrane treatment, and magnetron evaporation crystallization. The dissolved air flotation unit generates micro-nano bubbles through a Venturi-cyclone coupling device, achieving efficient flotation in conjunction with PAC / PAM; the multi-stage sedimentation tank adds softening agents in stages and implements closed-loop control to remove soluble barium, boron, fluorides, and hardness; the electrochemical oxidation unit enhances mass transfer through ultrasound to degrade recalcitrant organic matter; the membrane treatment uses an integrated system of hollow fiber membrane bioreactor, spiral wound ultrafiltration membrane, and antifouling reverse osmosis membrane to achieve compliant wastewater discharge; the magnetron evaporation crystallizer utilizes the synergistic regulation of magnetic field gradient and temperature gradient to control the crystallization process, achieving membrane separation and fractional treatment of concentrated brine to produce high-purity salt products. This invention can effectively achieve the standard discharge treatment of shale gas fracturing backflow wastewater and the resource utilization of evaporated crystallized salt. It is also applicable to the treatment of shale gas production wastewater with similar water quality characteristics, and has good prospects for promotion and application.

The invention discloses a cracking device for waste plastics, and relates to the technical field of cracking of waste plastics, the cracking device comprises a reaction tube, a back pressure container is arranged above the reaction tube, the top end of the back pressure container is connected with a pressure pump through a first gas delivery pipe, and a discharge pipe extending into the reaction tube is fixed at the bottom end of the back pressure container; high-pressure airflow is injected into the backpressure container through the pressure pump, so that waste plastic particles can be instantaneously brought into the discharge pipe by the high-pressure airflow, second-level feeding of gram-level plastic is realized, the plastic can quickly perform heat transfer with a high-temperature heat carrier in a thermal cracking section in the reaction pipe, the heat transfer rate is increased, coke is reduced, and the energy consumption is reduced. The defect that more coke is generated due to the fact that plastic is slowly heated and cracked from the room temperature is overcome, pyrolysis product distribution can be effectively improved, the subsequent catalytic modification reaction is facilitated, meanwhile, reaction products obtained after thermal cracking can rapidly enter the catalytic modification section to be subjected to the catalytic modification reaction, coupling of thermal cracking and catalytic modification is achieved, and the service life of the catalytic modification section is prolonged. And the conversion efficiency of the waste plastics to high-added-value products is effectively improved.

The invention discloses a dual-mode single-pin power supply communication multiplexing interface circuit and a test method, and the circuit comprises a main control module which is used for outputting a first control signal, a second control signal, a coding signal, an enabling signal, and a packaging selection signal; the programmable pin driving circuit is used for generating a first adjustable voltage signal according to the first control signal, outputting the first adjustable voltage signal to the chip to be tested and generating a second adjustable voltage signal according to the second control signal; the communication / power supply multiplexing pin driving circuit is used for enabling transmission of the coded signal according to the enable signal, generating a modulation signal according to the coded signal and a second adjustable voltage signal, selecting a path signal from the modulation signal and a fixed level according to a packaging selection signal, and transmitting the path signal to the communication / power supply multiplexing pin driving circuit; and coupling the path signal with a reference voltage and then outputting a multiplexing signal to a power supply communication multiplexing pin of the chip to be tested. According to the circuit and the test method, the universality, the reliability and the test efficiency of the test system are improved.

The application relates to a spacecraft system simulation method and system based on an intelligent behavior rule model, and the method comprises the following steps: according to simulation task requirements, designing a behavior rule model and constructing a graphical description of the behavior rule model; according to the graphical description of the behavior rule model, constructing a standardized rule model language of the behavior rule model based on the Backus notation; performing serialization of a control sequence of the standardized rule model language of the behavior rule model, and outputting the control sequence for spacecraft model and planning model control; acquiring an execution result of the spacecraft model and the planning model, performing deserialization of the control sequence, and judging the execution result; and repeating the above steps until the simulation task requirements are completed. The application effectively solves the shortcomings of traditional behavior rule modeling based on rules or finite state machines, and improves the automation level and confidence of spacecraft system confrontation simulation.

The invention relates to the field of communication, and provides a filter, which comprises a first resonator, the first resonator at least has two resonance modes of a TE mode and a TM mode, the first resonator comprises a resonator shell and a dielectric resonance piece arranged in the resonator shell, and the dielectric resonance piece is connected to a first wall of the resonator shell; the filter further comprises a first coupling structure arranged in the resonator shell, the first coupling structure comprises a first coupling part and a second coupling part, the first coupling part and the first wall are spaced in parallel, the second coupling part is connected between one end of the first coupling part and the first wall, and the first coupling structure is used for coupling the TE mode and the TM mode of the first resonator. According to the filter, the TE mode and the TM mode of the first resonator can be coupled through the first coupling structure with the simplified and optimized structure, and the coupling effect is good, so that the structure and the performance of the filter can be optimized, and simulation design of the filter can be facilitated.

The present application belongs to the field of catalyst regeneration, and particularly relates to a catalyst regeneration device, which comprises a bucket elevator, a screw feeder and a reaction kiln body, the inside of the reaction kiln body is provided with a reaction kiln drum, the rear end of the reaction kiln drum is provided with the screw feeder, the top of the screw feeder is provided with a weighing hopper, the rear end of the screw feeder is provided with the bucket elevator, the rear end of the bottom of the reaction kiln drum is provided with a discharge hopper, the front end of the reaction kiln drum is provided with a pipeline rotary joint, and the front end of the bottom of the reaction kiln drum is provided with a driving device. The present application introduces carbon dioxide and oxygen to form a regeneration reaction gas, controls the reaction temperature in the reaction kiln, avoids the local high-temperature problem prone to occurring in the pure oxygen regeneration process, solves the irreversible damage problem of the catalyst carrier caused by high-temperature sintering in the prior art, guarantees the activity and service life of the regenerated catalyst, and improves the qualified rate of catalyst regeneration.