11results about How to "Stable physical properties" patented technology

The invention provides a spirotetramat polyurethane / polyurea microcapsule suspending agent as well as a preparation method and application thereof, and belongs to the technical field of pesticide preparations. The preparation method comprises the following steps: mixing an oil-phase solution containing spirotetramat raw medicine and polyisocyanate with a water-phase solution containing an emulsifier and a dispersant, carrying out shear emulsification, adding a water-soluble wall material monomer water solution containing polyamine and / or polyol, and carrying out an interfacial polymerization reaction; after the polymerization is finished, sequentially carrying out curing treatment and cooling, then adding an auxiliary agent, and blending to obtain the spirotetramat polyurethane / polyurea microcapsule suspending agent. The spirotetramat microcapsule suspending agent is prepared through an interfacial polymerization method, spirotetramat is coated in a polyurethane or polyurea capsule wall, and the spirotetramat microcapsule suspending agent has the advantages of being high in encapsulation efficiency, good in physical and chemical stability, long in pesticide effect lasting period, safer to non-target organisms (such as bees) and the environment and the like. The preparation method is stable in process, easy for industrial production and excellent in product performance.

This invention discloses a method and system for predicting kidney stone hardness based on cross-modal aligned knowledge distillation, comprising: training a teacher network using multi-channel DECT data, enabling the teacher network to predict stone hardness and extract the physical attribute vector Φ. DECT ;Φ DECT The dimension is d p Each dimension corresponds to a physical attribute that plays a decisive role in hardness prediction; a student network is constructed, which, after receiving a single-channel SECT image, first generates a latent physical attribute vector and then performs hardness prediction based on the latent physical attribute vector; an alignment loss is constructed, which, during the training of the student model, allows the distribution and geometry of to approximate Φ. DECT The SECT image to be predicted is input into the trained student model to predict the hardness of the kidney stone. This invention can transfer rich information from dual-energy CT to a plain CT model to improve the predictive ability of plain CT for kidney stone hardness.

The invention belongs to the technical field of machine learning, and particularly relates to an emulsifier production process temperature control method and system based on machine learning, and the method comprises the steps: obtaining the operation data of an emulsification kettle, and removing the no-load loss to construct a shearing power density sequence; obtaining an embedded vector representing viscosity and heat retardation through the rheological state mapping network; the embedded vector is injected into a gate control circulation unit updating gate, and a temperature prediction sequence is output; calculating a consistency index based on the thermodynamic entropy yield, and combining sensible heat temperature rise power residual error to construct a correction term to rectify the prediction sequence; and inputting the consistency temperature into a model prediction controller to generate a valve instruction. According to the method, deep learning is constrained through a physical mechanism, and the problems of temperature control lag and overshoot of the non-Newtonian fluid caused by shear heat are solved.

The invention discloses a phosphonic acid group modified phenazine negative electrode electrolyte as well as a preparation method and application thereof, and relates to the technical field of flow batteries. The phenazine negative electrode electrolyte has a structure shown in the specification, wherein R, R1, R2, R3, R4, R5 and R6 are respectively one of-H,-OCH3,-OCnH2nCH3,-Me,-F,-Cl,-Br,-I,-CnH2nCH3,-OCnH2nPO3H2 and-CnH2nPO3H2, at least one of R, R1, R2, R3, R4, R5 and R6 is-OCnH2nPO3H2, and n is a positive integer. The phenazine negative electrode electrolyte material disclosed by the invention realizes relatively high solubility, stable chemical properties and physical properties and relatively high battery cycle stability, and is suitable for near-neutral aqueous organic salt cavern flow batteries.

This application relates to the field of silicone rubber, and more specifically, to a high-performance weather-resistant and anti-fouling silicone rubber for encapsulation / bonding of electronic components and its preparation method. It comprises the following raw materials in weight percentages: 50-65% base compound; 20-30% insulating filler; 5-8% A synergist; 2-5% B synergist; the balance being processing aids; A synergist is a hydrogen-containing silicone resin; B synergist is composed of cage-type polysilsesquioxane containing activating groups, tetravinyltetramethylcyclotetrasilazane, and silicone wax in a weight ratio of 1:(0.5-1):(1-3); and the compound system of synergist and B synergist can bond with the silicone rubber obtained from the base compound and insulating filler to form a dense and stable three-dimensional cross-linked network after curing. This not only possesses superior physical properties but also excellent bonding strength, low shrinkage, weather resistance, and anti-fouling properties, improving the structural stability and long-term reliability of electronic components.

This application relates to a foaming system, including an air supply unit, a foaming unit, and a host computer control system. The air supply unit includes an air source and an air delivery pipeline. A proportional valve, an air flow regulating valve, and an air flow meter are connected in series on the air delivery pipeline. A pressure acquisition element is installed inside the air delivery pipeline, configured to monitor the downstream pressure value of the proportional valve in real time. The host computer control system is configured to set the air flow value and control the opening degree of the proportional valve and the air flow regulating valve, while simultaneously controlling the loading pressure value of the air source, ensuring that the loading pressure value of the air source is maintained at least 0.2 MPa higher than the downstream pressure value of the proportional valve. This application also relates to a method for controlling the compressed air flow rate of the foaming system, applied to the foaming system disclosed in this application. This application ensures that compressed air is stably delivered to the foaming system at the set flow rate through the coordinated control of the proportional valve and the air flow regulating valve, combined with a dynamic balance design between the air compressor loading pressure and the downstream pressure of the proportional valve.

The present application relates to the technical field of seamless steel pipe processing, and specifically discloses a normalizing process for improving the corrosion resistance of a seamless steel pipe. The normalizing process for improving the corrosion resistance of a seamless steel pipe comprises the following steps: Step 1), surface cleaning of a 45# steel pipe, drying, and then immersing the 45# steel pipe in a treatment liquid to obtain a pretreated steel pipe; Step 2), sequentially performing 1st heating, 2nd heating, 3rd heating, 4th heating, and 5th heating on the pretreated steel pipe, and then sequentially performing 1st cooling, 2nd cooling, 3rd cooling, 4th cooling, and 5th cooling to obtain a seamless steel pipe; the treatment liquid is a compound of manganese dihydrogen phosphate, potassium dihydrogen phosphate, sodium dihydrogen phosphate, ammonium hexafluorophosphate, sodium molybdate, and a solvent; and the present application has the advantage of better improving the corrosion resistance of a seamless steel pipe under the premise of reducing costs, improving, and reducing the performance stability of a seamless steel pipe.

The invention belongs to the technical field of inositol production and packaging, and particularly relates to an inositol pipeline full-automatic metering and packaging device which comprises an air pipe. The inositol powder is conveyed to the stacking bin for temporary storage and buffering through the air pipe by an external pump machine. The motor I is started to drive the screw rod to rotate, and the twisting blade pushes the powder into the flow meter at a constant speed through the extrusion pipe for accurate metering; meanwhile, the conveying frame is driven by external transmission equipment to stably move through cooperation of an embedded groove in the bottom of the conveying frame and a strip rod on the fixing frame, and the opened plastic package bag is accurately conveyed to the position below a discharge port of the flow meter. And when the flowmeter detects that the passing powder reaches the preset weight, the full plastic package bags are transferred to the plastic package space between the two groups of grinding wheels along with the conveying frame. In the plastic packaging link, firstly, a second motor is started, a second gear is driven to rotate, a first gear meshed with the second gear is driven, and a coaxial driving side grinding wheel starts to rotate; and then, a synchronous wheel I at the top of the grinding wheel on the driving side transmits power to a synchronous wheel II on the driven side through a synchronous belt.

The utility model relates to the technical field of polyurethane plate production, in particular to a raw material feeding device for polyurethane plate production, which comprises a raw material box and two pairs of supporting legs, the top of the raw material box is fixedly connected with a feeding nozzle, and the side wall of the raw material box is provided with a discharging assembly. The discharging assembly comprises a material guiding pipe fixedly connected with the side wall of the raw material box, a material guiding opening is formed in the side wall of the material guiding pipe, a stopping block is slidably connected to the interior of the material guiding pipe, one end of the stopping block is fixedly connected with a first linkage column, the first linkage column penetrates through the material guiding pipe, and the first linkage column is fixedly connected with a second linkage column. Through cooperative arrangement of a material guide pipe, a first linkage column and a stop block, when a new quantitative cup is replaced every time, a flow guide pipe can stop discharging, it is ensured that the amount of discharged materials is kept consistent every time, it is ensured that the proportion of polyurethane plate raw materials produced every time is consistent, and therefore all indexes such as the physical performance and the chemical performance of a product are kept stable, and the production efficiency is improved. Product quality fluctuation is reduced, and the overall product quality is improved.

A liquid level and temperature control system for an anhydrous magnesium chloride particle melting and purifying furnace comprises a furnace charge blending system, a furnace charge loading system and a temperature control system, the furnace burden blending system comprises an anhydrous magnesium chloride stock bin, an anhydrous magnesium chloride rotary feeder, an anhydrous magnesium chloride continuous impact type weighing device, a carbon powder stock bin, a carbon powder rotary feeder and a carbon powder continuous impact type weighing device; the furnace charge loading system comprises an anhydrous magnesium chloride screw feeder, a carbon powder screw feeder, a mixture screw feeder and a chute; the temperature control system comprises a melting chamber temperature transmitter, a melting chamber transformer, a chlorination chamber temperature transmitter, a chlorination chamber transformer and a clarifying chamber liquid level transmitter. The device has the beneficial effects that the purity and the physical performance stability of magnesium and magnesium chloride are ensured by dynamically adjusting temperature parameters in real time, and the process fluctuation caused by a coupling effect is reduced through the cooperative control of the temperature and the liquid level, so that the molten state is more uniform, and the defect rate of products is reduced.

The application provides a polypropylene composite material and a preparation method and application thereof, and relates to the technical field of electrical materials. The application comprises the following steps: S1: dissolving polyetherimide in a solvent to form an electrospinning solution; S2: adding nano magnetic particles into the electrospinning solution to perform electrospinning; S3: collecting the same-direction nano fibers to perform hot pressing to form a functional layer; S4: hot pressing the functional layer and a polypropylene film in the order of functional layer-polypropylene film layer-functional layer to form a composite layer; and S5: performing directional magnetization on the composite layer to obtain the polypropylene composite material. The electrospinning technology is used to prepare the functional layer, which not only solves the problem of uniform dispersion of the magnetic particles in the polymer, but also provides abundant interface areas for charge capture through the construction of the nano fiber network. The problem of space charge accumulation in the polypropylene material under a high-voltage direct-current system is solved.