77results about How to "Long-term stability" patented technology

The invention discloses a multistage sewage treatment device and method combining biological treatment and electro-Fenton, and relates to the field of water pollution control, the device is composed of a three-chamber microbial fuel cell reactor, and the three-chamber microbial fuel cell reactor is sequentially composed of a microbial anode chamber, an electro-Fenton cathode chamber and a photosynthesis chamber from left to right. The biological anode chamber consists of filled anaerobic granular sludge and a carbon brush electrode serving as an electron collector; and the core structure of the electro-Fenton cathode chamber is a gas diffusion cathode loaded with nano FeCo2O4. The microbial anode chamber and the electro-Fenton cathode chamber are isolated by a proton exchange membrane, and the gas diffusion electrode separates the electro-Fenton cathode chamber and the photosynthesis chamber at the same time. According to the invention, the combination of two clean energy sources, namely microbial energy and light energy, is realized, the efficient removal capability of aerobic and anaerobic biological treatment technologies and the synergistic mechanism of microorganisms and algae for purifying sewage are combined, the efficiency of the microbial fuel cell is further optimized, and the removal of ammonia nitrogen and refractory organic pollutants in the sewage is realized.

The invention discloses a clock product assembly quality data analysis system, and relates to the technical field of clock assembly quality evaluation management. According to the clock product assembly quality data analysis system, a data acquisition module is used for acquiring data after a to-be-analyzed clock product is assembled, a first data analysis module is used for performing data analysis on the acquired data to obtain an appearance integrity index and an assembly accuracy index, and a second data analysis module is used for acquiring function test data. And the comprehensive analysis module is used for carrying out comprehensive analysis on the appearance integrity index, the assembly accuracy index and the function reliability index to obtain an assembly quality index. The assembly quality index is judged and analyzed through the assembly repair management module, and corresponding assembly repair measures are taken; therefore, tiny errors in the assembled clock can be accurately evaluated, so that the precision and the stability of the clock product are ensured, and the product quality is comprehensively evaluated.

The invention discloses a coal mine shaft crack identification method in a non-illumination environment based on an optical fiber sensing grating, and belongs to the field of coal mine shaft disease detection. According to the method, distributed optical fibers form an optical fiber sensing grating, the optical fiber sensing grating is fixed on the surface of a well wall, an optical fiber demodulator is used for collecting strain along the optical fibers, a blank blind area of the optical fiber sensing grating is filled through an interpolation algorithm, and a strain field image data set of the well wall is obtained; and a CCD industrial camera is matched to shoot a well wall crack image sample at the optical fiber sensing grating, binarization processing is carried out, and a well wall crack image data set is established. And establishing a well wall crack identification model based on deep learning, introducing two parallel feature extraction branches, respectively receiving an optical fiber strain field image data set and a well wall crack image data set, and performing feature extraction and fusion of the two different types of data sets through training. Because the strain data is sensed through the optical fiber, the illumination environment is not needed, and after the model training is completed, the identification and early warning of the well wall crack in the illumination-free environment can be realized only by inputting the optical fiber strain data acquired in real time into the trained model.

The invention provides a bicontinuous phase solid polymer electrolyte and a preparation method thereof, and belongs to the technical field of secondary batteries, the solid electrolyte is composed of a porous polymer reinforced matrix and an ion transport phase dispersed in the polymer reinforced matrix; the polymer reinforced matrix is made of thermosetting resin; the ion transmission phase is composed of an ionic liquid and a lithium salt, the mass ratio of the lithium salt to the ionic liquid is 1: (3-5.5), and the mass ratio of the ionic liquid to the thermosetting resin is 1: (0.4-2.4); the ionic liquid is one or a combination of more of azole ionic liquid, quaternary ammonium salt ionic liquid or pyrrole ionic liquid; and the lithium salt is an imine lithium salt. The high-concentration lithium salt is used as a curing agent, so that the transmission efficiency of ions is improved, and the mechanical property of the solid electrolyte is also improved.

The invention provides a positive electrode material, a preparation method thereof and a battery, the positive electrode material comprises an inner core and a shell coating the inner core, the inner core comprises a lithium-rich manganese-based positive electrode material, and the shell comprises manganese dioxide and aluminum fluoride; the chemical formula of the lithium-rich manganese-based positive electrode material is xLi2MnO3. (1-x) LiMO2, M is transition metal, the transition metal comprises at least one of Ni, Co and Mn, and x is more than or equal to 0 and less than or equal to 1. The positive electrode material is a modified lithium-rich manganese-based positive electrode material and has relatively good structural stability and relatively low charge transfer resistance, so that the rate capability and the cycling stability of the battery can be effectively improved.

The invention relates to an intelligent photovoltaic curtain wall which has the function of adjusting light transmission intensity. The surface of the photovoltaic curtain wall is fully covered by the photovoltaic module, the supporting body is installed behind the photovoltaic battery module, and the photovoltaic module is fixed on the supporting body through the module fastener. Air hole channels are arranged among the photovoltaic modules to adjust temperature, and air holes can be connected with external constant-temperature systems such as a central air conditioner, so that the photovoltaic curtain wall has good constant-temperature capability. The photovoltaic cell is located between the guide rails, and the controller controls the driving motor to achieve movement of the cell position, so that the light transmission intensity is adjusted in good time. A mechanical arm and a control motor are arranged in the photovoltaic cell storage box and used for storage and output of photovoltaic cells, and the control motor receives instructions of the controller to operate. The controller is connected with the driving motor and the control motor through data lines, the shielding area ratio of the photovoltaic cell is automatically adjusted according to user requirements, and automatic adjustment of the light transmission intensity is achieved.

The invention discloses a TTE integrated Ethernet test data time delay deterministic transmission method, which comprises the following steps that: a time synchronization core module is designed in a TTE protocol by utilizing an FPGA (Field Programmable Gate Array), and the module can process a received protocol control frame (PCF) to realize multi-node high-precision time synchronization; the state and other core signals are controlled by adopting a command-condition interaction method; a maximum matching algorithm combined with cut-off priority is used for generating a scheduling table, and the method comprises the eight steps of scheduling parameter input, period calculation, shortest path calculation, cut-off priority preprocessing, maximum matching sorting, message distribution, conflict detection and scheduling table loading. The FPGA is used for loading the scheduling table to the scheduling configuration module, Ethernet transmission is fused, periodic time slot distribution is carried out on links, and the stability of time synchronization and the time delay certainty of test data transmission are ensured. According to the method, the link load can be balanced on the premise of reducing the real-time data packet loss rate.

The invention provides a construction method and device of a digital cell model, equipment and a storage medium, and relates to the technical field of biological artificial intelligence. The construction method of the digital cell model comprises the following steps: carrying out cell language compiling through an intelligent processing module, and obtaining recompiled data; generating a digital cell model based on the recompiled data; finely adjusting the digital cell model; and obtaining a simulation result through the fine-tuned digital cell model, and verifying the simulation result. According to the embodiment of the invention, the real cell dynamic state can be preliminarily simulated, and the dynamic change and interaction of molecules in cells can be accurately reflected.

The invention belongs to the field of power station discharge monitoring, and particularly relates to a multi-compartment GIS equipment discharge source positioning straddle collaborative layout structure, which comprises a core sensor group arranged in each main compartment of GIS equipment and used for collecting UHF pulse signals of a main compartment discharge source and taking the UHF pulse signals as main positioning data; the edge sensor group is arranged at the flange interface between the compartments and is used for collecting UHF pulse signals transmitted across the compartments and taking the UHF pulse signals as auxiliary positioning data; and the signal fusion module is used for establishing a compartment-sensor incidence matrix, and fusing the time delay data of the core sensor group and the edge sensor group through a weighted fusion algorithm. According to the multi-compartment GIS equipment discharge source positioning straddle collaborative layout structure provided by the invention, four functional modules of signal fusion, attenuation calibration, time delay compensation and dynamic calibration are combined, and the core problems of straddle coverage, insufficient precision and too high cost of multi-compartment GIS equipment discharge source positioning are effectively solved.

The utility model discloses a pressure sensor MEMS chip calibration and test tool, which comprises a chip tool module and a test circuit board corresponding to the chip tool module, and is characterized in that the chip tool module comprises a chip slot plate provided with a plurality of chip slots; wherein ventilation pipelines corresponding to the chip slots are arranged in the chip slot plate; wherein a probe is arranged between the test circuit board and each chip slot; the chip tool module can adjust the size of the positioning groove so as to be suitable for MEMS chips of different specifications. The integrated equipment integrating MEMS pressure sensor testing and high and low temperature calibration is developed by utilizing modular design in cooperation with an automatic testing and data processing technology, batch processing can be carried out, and great attraction is achieved for the industry needing a large amount of necessary standardization and repeated testing.

The invention discloses a PVC color master batch with excellent weather resistance and a preparation method thereof. The PVC color master batch is prepared from PVC resin, magnesium oxide, a nitrogen-substituted hindered amine light stabilizer, a flexibilizer, a heat stabilizer, a lubricant and a pigment according to a certain ratio. The preparation method of the PVC color master batch comprises the following steps: S1, uniformly mixing the PVC resin, the magnesium oxide, the nitrogen-substituted hindered amine light stabilizer, the flexibilizer, the stabilizer, the lubricant and the pigment to obtain a mixed material; and S2, adding the mixed material into a double-screw extruder, and carrying out extrusion granulation, so as to obtain the PVC color master batch with excellent weather resistance. The PVC color master batch has good weather resistance and toughness, other properties can meet the requirements of the national standard, the PVC color master batch is applied to outdoor engineering and has long-term stability, and the service life is greatly prolonged.

The invention relates to an aromatic nano material based on biomass waste as well as a preparation method and application thereof, and the preparation method comprises the following steps: pretreating the biomass waste to obtain biomass waste particles; the biomass waste particles obtained in the step S1 are dissolved and subjected to ultrasonic dispersion, and dispersion liquid is obtained; performing microwave treatment on the dispersion liquid obtained in the step S2 to obtain a reactant; resuspending the reactant obtained in the step S3 in deionized water to obtain a reaction solution; and S4, filtering, centrifuging, dialyzing and freeze-drying the reaction liquid obtained in the step S4 to obtain the aromatic nano material. Compared with the prior art, the preparation method disclosed by the invention is simple and easy to implement, waste is adopted as a base material, maximum utilization of resources is realized, large-scale batch preparation is easy, and the aromatic material with the nanoscale size can be prepared. The nano-material has the advantages of higher oxidation resistance, more obvious aroma characteristic and obvious blue fluorescence, and has a good application prospect.

The invention provides an in-vitro induction and purification method for Giardia lamblia cysts. The induction method is characterized in that Giardia lamblia trophozoite is cultured in a TYI-S-33 culture medium containing pulvis fellis suis to obtain the Giardia lamblia cysts. According to the in-vitro induction method for the Giardia lancea cysts, the pig gall powder is added into the TYI-S-33 culture medium to induce the Giardia lancea trophozoite, and it is found that compared with common ox gall powder, the proportion of converting the Giardia lancea trophozoite into the cysts can be remarkably increased, and the generation rate of the induced cysts stably reaches 50%; according to the giardia lamblia cyst purification method disclosed by the invention, protease K is utilized for purification, so that pure cysts can be obtained, long-term stability and activity can be maintained, and the cysts can be stably stored for several weeks to several months at 2-8 DEG C and can be prepared into giardia lamblia cyst standard substances; the method is used for method verification, quality control, disinfection efficiency research, filtration efficiency evaluation and the like.

The invention discloses an identity recognition information generation method and device of Bluetooth equipment and electronic equipment, and relates to the technical field of electromagnetic supervision safety, and the method comprises the steps: determining a broadcast event interval and an interval type according to a timestamp sequence of a broadcast packet; determining a broadcast event interval parameter, a broadcast delay generation parameter and a time drift value according to the broadcast event interval and the jump discontinuity point in the interval category; and obtaining the identity recognition information of the Bluetooth equipment by combining the parameters. The problems that identity recognition information generated according to load information is prone to failure or counterfeiting and poor in safety, and identity recognition information generated according to the characteristics of data packet signals is low in accuracy and poor in stability can be solved. According to the method, broadcast event interval parameters are extracted from an application layer, broadcast delay generation parameters are extracted from a protocol layer, time drift values are extracted from a hardware layer, cross-layer fingerprints are jointly formed to serve as identity recognition information, the identity recognition information has long-term stability, and accurate, stable and repeatable recognition can be conducted on Bluetooth equipment.

The application discloses a kind of children language cognitive rehabilitation auxiliary system and method based on adaptive co-creation mechanism, belong to medical artificial intelligence and psychological rehabilitation engineering field.The system includes five big core modules, and is connected in the form of data stream closed loop between modules, forms sustainable optimization interactive system, which is by fusing the semantic vector of children voice, emotion vector and task vector, via dynamic weight generation network and cross-modal attention mechanism to construct fusion state vector, and using attention enhanced gated recurrent unit and strategy network to generate co-creation control instruction, and then synthesis interactive voice signal with emotional expressiveness.The application can realize the synchronous fusion and linkage feedback of semantic understanding and emotion recognition, dynamically adjust interactive strategy according to the real-time state of children, and optimize strategy network parameters through online self-learning, improve the naturalness, coherence and individual adaptability of rehabilitation interaction.

The application provides an oral instant tablet containing Morinda citrifolia oil, which comprises the following components in parts by mass: Morinda citrifolia oil microemulsion 10 parts, carrier 30-40 parts, coating material 2-4 parts, and disintegrating agent 2-5 parts. The coating material is selected from Aeroperl and / or Sylysia; the carrier is selected from one or more of microcrystalline cellulose MCC PH101, microcrystalline cellulose MCC PH102, starch and lactose; and the disintegrating agent is selected from carboxymethyl starch sodium and / or low-substituted hydroxypropyl cellulose. The microemulsification technology is used to wrap the essential oil to reduce the volatilization of the essential oil; the microemulsion is made into a tablet to cover the acidity, increase the compliance of the public, and realize the form change of the Morinda citrifolia oil microemulsion from liquid to solid. The application studies and prepares the oral instant tablet containing Morinda citrifolia oil, which not only solves the inherent defects of traditional dosage forms, but also provides a more convenient taking mode compared with common tablets.

The utility model provides a fermentation tank beneficial to improving the density of halophilic strains, belongs to the technical field of halophilic strain fermentation, and aims to solve the problems that the inner wall of the conventional fermentation tank is relatively smooth and the halophilic strains are inconvenient to adhere. Comprising a tank body; a control module is fixedly arranged at the top of the tank cover; a ventilation structure is fixedly arranged between the outer side of the tank body and the interior of the tank cover, a stirring assembly is rotationally arranged in the bottom side of the tank body, and an automatic pressure relief structure is fixedly arranged in the top side of the tank cover; by means of the annular array type attachment protrusions and the attachment grooves, a microstructure can be formed on the inner wall of the tank body, and attachment and growth of halophilic bacteria are facilitated; meanwhile, a ventilation structure and an oxygen sensor are utilized, so that sufficient supply of oxygen in the culture solution can be ensured; a fermentation environment capable of improving the density of halophilic bacteria is provided.

The invention discloses a cloud platform monitoring system for corrosion of the outer wall of a long-distance heat supply pipe network and a using method, and belongs to the field of material corrosion protection research in a heat supply pipe network system.The cloud platform monitoring system comprises a long-distance heat supply pipe network cathode protection device, a cathode protection state monitoring device and a cloud platform monitoring module; the cathode protection device for the long-distance heat supply pipe network comprises a plurality of sacrificial anodes installed in a valve well along the heat supply pipe network; the cathode protection state monitoring device comprises a plurality of pipeline protection state monitoring devices, a pipeline potential monitoring cable, a reference electrode, a reference electrode testing cable and a cloud platform signal transmitting device; and the cloud platform monitoring module receives and displays the digital signal transmitted by the cloud platform transmitting device. According to the system, valve wells along the long-distance heat supply pipe network are used for implementing cathode protection, stray current corrosion can be avoided, and the protection state can be uploaded to a cloud platform in real time to be mastered by a user in time; excavation is not needed, and an anti-corrosion layer and a heat preservation layer are prevented from being damaged.

The invention discloses a method and a device for data access control in an energy safety operation system, which are beneficial to timely discovery and prevention of unauthorized data access by analyzing a historical data access data set so as to enhance the access safety, subdivide data access attributes into three dimensions of a main body, an environment and resources, and improve the data access efficiency. A corresponding attribute data matrix is constructed, so that an access control strategy can be more accurately formulated according to specific conditions, the fine-grained control is beneficial to reducing unnecessary permission granting, a graph clustering algorithm is utilized to perform clustering analysis on the attribute data matrix to form a data cluster, and the access control strategy can be more accurately formulated according to the specific conditions. Strategy making based on the data cluster makes strategy adjustment more flexible and can quickly adapt to changes of a system environment, the technical scheme is a continuous iteration process, and along with continuous accumulation and deep analysis of historical data access data sets, a data access strategy can be continuously optimized and adjusted so as to adapt to new security threats and access requirements.

The invention discloses a single-resonant-cavity double-optical-frequency-comb light source based on double phase shifters, and the light source comprises a polarization-maintaining optical fiber coupler, a polarization-maintaining gain optical fiber, the double phase shifters and an output device which are sequentially connected through polarization-maintaining optical fibers, the output module is used for outputting optical signals input by different input ends through corresponding output ends according to requirements; the polarization-maintaining gain optical fiber is used for amplifying an optical signal excited by the pumping laser output by the polarization-maintaining optical fiber coupler; the double phase shifters are used for constructing nonlinear amplification loop reflectors on the fast axis and the slow axis of the polarization maintaining optical fiber at the same time and generating cross-polarization double optical frequency combs in a single resonant cavity in a polarization multiplexing mode; and the output device is used for outputting the dual-optical frequency comb. Therefore, the double-phase shifter can be used for realizing large-range flexible adjustment of the repetition frequency difference of the double-optical frequency comb.

The invention discloses a preparation method of a hydrogen production microchannel based on asymmetric wettability gradient and efficient gas-liquid separation, and relates to the technical field of new energy microfluids. The invention aims to solve the technical problem that hydrogen production by electrolyzing water is difficult to realize in the existing microchannel and microgravity environment. According to the method, a micro-channel and a micro-pore channel are prepared by utilizing a surface projection-based micro-stereolithography 3D printing technology, and the micro-pore surface interface of the micro-channel is treated to form an asymmetric wettability interface with a super-hydrophobic top and a hydrophilic bottom of the micro-pore channel. The obtained micro-channel has excellent gas-liquid separation performance and exerts excellent performance in micro-channel electrolytic hydrogen production and microgravity gas-liquid separation application, the process is simple, and operability is high. The hydrogen production microchannel based on asymmetric wettability gradient and efficient gas-liquid separation prepared by the invention is used for producing hydrogen by electrolyzing water.

This invention relates to the field of optical measurement equipment technology, specifically disclosing a mirror fixing device for optical measurement, comprising: a base, wherein a support rod is slidably connected to the base, and a fixing frame is fixedly connected to the support rod; a rotating shaft, rotatably connected to the fixing frame, a connecting frame being fixedly connected to the rotating shaft, and two support shafts being rotatably connected to the connecting frame, with a fixing shell fixedly connected between the two support shafts; two fixing columns, each fixedly connected to both sides of the fixing frame, each fixing column being slidably connected to a sliding rod, and a guide ring being fixedly connected between the two sliding rods; and a connecting shell, fixedly connected to one side of the fixing shell, with a ball-end rod slidably connected to the connecting shell. This invention eliminates the need for easily fatigued springs, employing a fully mechanical threaded sleeve and worm gear transmission mechanism to achieve angle and direction adjustment. This mechanical structure eliminates the problem of elasticity attenuation and has strong resistance to vibration interference.

The present invention discloses a copolymer containing PVDF units, a preparation method thereof, a humidity-sensitive film and an application of the humidity-sensitive film. A copolymer containing PVDF units, wherein the raw materials for preparing the copolymer include modified PVDF containing unsaturated bonds, aromatic vinyl monomers, silicon-containing comonomers and initiators; a preparation method for the copolymer containing PVDF units; and the humidity-sensitive film is obtained by forming the copolymer containing PVDF units. The humidity-sensitive film obtained by the present invention has excellent mechanical properties and hydrolysis resistance stability, is not easy to fall off under high temperature and high humidity, and can maintain long-term stability under high humidity. The humidity sensor prepared by using the humidity-sensitive film obtained by the present invention has accurate measurement and excellent linearity.

The utility model belongs to the technical field of motion capture, and discloses an inertial parameter capture device which comprises a shell, an inertial capture assembly and a pressing connection assembly, grooves are symmetrically formed in the surface of the shell, rod grooves are symmetrically formed in the inner walls of the two sets of grooves respectively and are communicated, mounting grooves are formed in the inner walls of one set of grooves, and the pressing connection assembly is arranged in the mounting grooves. The inertia capturing assembly comprises a sliding frame and an inertia capturing mechanism, the sliding frame is slidably connected to the inner wall of the mounting groove, and the inertia capturing mechanism is arranged on the surface of the sliding frame; the pressing connecting assembly comprises two connecting mechanisms and two pressing plates, the two connecting mechanisms are arranged in the two rod grooves correspondingly, and the two pressing plates are arranged in the two grooves correspondingly. According to the device, an innovative bidirectional push-in fixing mechanism is adopted, the installation process of the circuit board is ingeniously simplified through the design, the potential damage risk caused by using screws is effectively avoided, and therefore the working efficiency and the overall reliability of the device are improved.

The present invention discloses a deflection actuator for a rudder surface with adjustable deflection angle, comprising a rudder surface, a rudder shaft, a clamping claw, an eccentric cam, a motor, and a fixing seat. The rotation speed of the motor is changed by controlling a motor control signal, thereby changing the deflection frequency of the rudder surface, and the entire device does not need to be changed. In the present invention, the angle between the small cylinder on the eccentric cam and the plane is fixed, and the maximum deflection angle of the rudder surface can be changed by replacing the eccentric cam with different angles, thereby increasing the application range of the device, increasing the flexibility of use of the device, reducing the manufacturing difficulty, and making it more practical in engineering.

The utility model belongs to the technical field of industrial dust removal equipment, and particularly relates to a cyclone cloth bag combined dust remover which is characterized by comprising a box body assembly, a tube nest is arranged in the box body assembly, and a stepped hole is formed in the tube nest; the filter bag assembly is arranged on the tubesheet, the filter bag assembly comprises a framework cage, and a connecting ring is arranged at the top of the framework cage; a groove is formed in the bottom surface of the connecting ring; the connecting ring is matched with the upper part of the stepped hole; the framework cage is sleeved with the filter bag, a clamping hoop is arranged at the top of the filter bag, the upper portion of the clamping hoop is arranged in the groove of the connecting ring, and the lower portion of the clamping hoop is matched with the lower portion of the stepped hole. The bag-type cyclone dust collector is used for solving the technical problems that the filter bag of the existing bag-type cyclone dust collector is only connected and mounted through a filter bag supporting plate, is lack of stability and poor in sealing performance during blowing, and is inconvenient to mount, dismount and replace.

The invention discloses a method for regulating and controlling the performance of a two-port solar charging device through electrolyte, and the method comprises the following steps: S1, enabling a conductive polymer to be supported on the surface of a light-absorbing semiconductor material through a photoelectric deposition method to form an energy storage layer of a photo-anode, the energy storage layer is one or a compound of more than two of polyacetylene, polyaniline, polypyrrole, polymethylpyrrole and the like; and S2, selecting Si as a light absorption semiconductor layer of the photo-anode. According to the invention, the design is reasonable, the HClO4 electrolyte is selected to replace the traditional H2SO4, H3PO4 and HCl electrolyte, and the charge-discharge current and the light output voltage are more excellent than those of the traditional electrolyte. A basic device structure is selected, a photoelectrode is composed of two parts, namely n-Si serving as a light absorption layer and polymethylpyrrole (PNMPy) serving as an energy storage layer, WO3 is selected as a counter electrode, an electrolyte is replaced by HClO4 from traditional H2SO4, H3PO4 and HCl, and the formed device has long-term stability.

The invention provides a flexible neural electrode composite coating and a preparation method and application thereof, the flexible neural electrode composite coating comprises polycaprolactone containing an anti-inflammatory drug minocycline and a nanofiber of methacrylated silk fibroin, the surface of the nanofiber is modified with a conductive polymer poly (3, 4-ethylenedioxythiophene) in situ, and the conductive polymer poly (3, 4-ethylenedioxythiophene) is modified with a conductive polymer poly (3, 4-ethylenedioxythiophene). Cured methacrylated silk fibroin hydrogel is formed on the surface of the modified material. According to the composite coating, the electrochemical performance is remarkably improved, the inflammatory reaction is relieved, and the biocompatibility is improved through the hydrogel. The composite coating has high charge storage / injection capacity, low interface impedance and good biocompatibility, and can stably record bio-electricity signals for a long time. The invention provides the invasive flexible neural electrode composite coating with remarkable anti-inflammatory action, excellent electrochemical performance and long-term stability, and reliable technical support is provided for clinical application of neural electrodes.

The invention discloses a compound agent for deep phosphorus removal of domestic sewage, a preparation method and a use method, and aims to solve the technical problem that the phosphorus removal effect of a current agent is unsatisfactory, the compound agent comprises polyaluminum ferric chloride and aluminum sulfate according to the ratio of 1%-10%: 90%-99%; the method comprises the step of uniformly mixing polyaluminum ferric chloride and aluminum sulfate, the use method comprises the following steps: (1) adding the compound agent into raw water to be treated in the efficient sedimentation tank of the domestic sewage treatment plant; mixing by using a stirrer; (2) adding a coagulant aid and stirring; (3) standing and precipitating, wherein supernate is treated water; the invention aims to optimize the phosphorus removal performance by scientifically proportioning two main components, namely PAFC (polyaluminum ferric chloride) and aluminum sulfate, overcome the defects in the prior art and realize a more efficient and economical phosphorus removal effect so as to meet the requirements on deep phosphorus removal in current and future domestic sewage treatment.

The application discloses a solid waste-based cementing material and a preparation method and application thereof, and belongs to the technical field of building materials. After grading pretreatment of industrial by-product gypsums of different sources, the industrial by-product gypsums are dry-mixed with active mineral admixtures, heavy metal stabilization components and sulfate activators, water is added for first-stage hydration and standing, the sulfate activation is preferentially caused to form ettringite and dihydrate gypsum crystal framework, and then silicate activators are added for second-stage hydration to generate C-(A)-S-H gel, so that the ordered generation of hydration products is realized. Through step-by-step cooperative activation, the early compressive strength is increased by 30%-50% compared with one-time addition of activators, the 28d softening coefficient can reach more than 0.76, meanwhile, the heavy metal ion leaching concentration is reduced by more than 80%, the quality standard requirement of underground water is met, and through the design of special pretreatment processes for desulfurization gypsum, phosphogypsum, fluorogypsum and citric acid gypsum respectively, the same set of modifier composition can adapt to various gypsum sources, and the quality stability is greatly improved.