622results about How to "Meet application needs" patented technology

The invention provides a distributed AGV system traffic control and scheduling method realized based on ROS2, and the method comprises the steps: building AGV vehicle nodes, building a traffic control module, developing a scheduling module, building a communication network, integrating a sensor data processing module, providing a central control board / man-machine interaction interface, and building a database / log module. According to the method, efficient data interaction and collaborative operation between AGVs are realized by using a distributed communication framework of ROS2, and by constructing a traffic control module and an optimized scheduling algorithm, the position and state of each AGV can be monitored in real time, the running path of each AGV can be dynamically adjusted, and traffic congestion and collision events are avoided. Compared with a traditional centralized control system, the system has the advantages that the expandability and fault-tolerant capability of the system are improved, the system is suitable for a complex and changeable industrial logistics environment, and the efficiency and reliability of logistics transportation are remarkably improved.

The invention relates to the technical field of polymer synthesis, in particular to polyaryletherketone resin containing imide side groups and a preparation method of the polyaryletherketone resin. By introducing an imide structure into aryl diphenol containing amino, a plurality of polyaryletherketone resins containing imide side groups are designed and synthesized, and are used for meeting various application requirements, such as high-performance materials, electronic materials, optical materials and the like; meanwhile, the performance of the polyaryletherketone material is also improved, so that the polyaryletherketone material is more suitable for various application environments.

The invention provides a high-resolution small-angle measuring device based on laser frequency measurement, which comprises a laser generating device, a reflecting mirror group and a beat frequency measuring module, and is characterized in that a narrow-band interference sheet (3) and a transparent solid medium (4) are fixed on a high-precision horizontal rotating table (5); the fixing positions of the narrow-band interference sheet (3) and the transparent solid medium (4) are axially symmetric and are not parallel to each other by taking the diameter, perpendicular to the light path, of the rotating table as the axis; and when the high-precision horizontal rotating table (5) rotates to cause the frequency change delta f of the measured laser, the variable quantity of the beat frequency is equal to delta f. According to the small-angle measuring device, angle measurement is converted into frequency measurement by means of the high sensitivity of laser frequency to the rotation angle of the transparent solid medium, and the cavity mode frequency and the transmission frequency of the interference piece are synchronously changed by adding the interference piece; the problem that the tunable range of laser frequency is small due to rotation of a transparent solid medium is solved, and continuous measurement of micro angles is achieved.

The invention discloses a copper alloy pipe and a preparation method and application thereof, and the copper alloy pipe comprises the following components in percentage by mass: 0.01%-0.80% of Sn, 0.005%-0.05% of P, 0.01%-0.10% of Zr, 0.001%-0.01% of B, 0.001%-0.01% of Mn and the balance of Cu and inevitable impurities. Wherein the copper alloy pipe contains MnZr and BMn compound particles, the number of the MnZr compound particles on the cross section of the copper alloy pipe is 0.005-0.15 / mu m < 2 >, and the number of the BMn compound particles on the cross section of the copper alloy pipe is 0.005-0.2 / mu m < 2 >. By adding Zr, B and Mn and controlling the content of Zr, B and Mn, the preparation process and the like, the number and uniformity of MnZr and MnB compounds are regulated and controlled, and the tensile strength, ductility, corrosion resistance, bending, flaring, welding, pressure resistance and other machining performance of the copper alloy pipe are improved; and the prepared copper alloy pipe fully meets the application requirements of heat conduction pipes of air conditioner heat exchangers, air conditioner indoor and outdoor unit connecting piping and the like.

The invention discloses a high-integration-level and efficient-cooling external rotor motor ducted fan system, which belongs to the technical field of ducted fans and comprises a motor stator winding and a fan external rotor integrated part integrally formed by fan blades and a motor external rotor turntable, the integrated shell is integrally formed by a motor inner stator sleeve, a ducted nacelle, a motor controller main shell and a plurality of groups of ducted stationary blades; a cooling structure is mounted on the integrated shell; a motor stator winding is fixedly connected to the outer wall of one end of the integrated shell, the front flow guide cover is fixedly connected to the fan outer rotor integrated part, and the rear flow guide cover is installed at the other end of the integrated shell. And the integrated shell is rotationally connected with the fan outer rotor integrated piece. The system is low in noise, high in integration level, high in system reliability, high in system cooling efficiency, high in power level compatibility and high in expandability.

The invention discloses a high-heat-dissipation integrated ducted fan electric propulsion system, which belongs to the technical field of ducted fans and comprises a motor controller, a motor, a motor front bearing, a motor rear bearing, a front fairing, a rear fairing and an integrated fan rotating shaft integrally formed by fan blades and a motor rotating shaft. The integrated nacelle motor shell is integrally formed by a motor shell, a ducted nacelle and a plurality of groups of ducted stationary blades; cooling devices are mounted on the motor shell and the motor controller; the cooling device comprises a cooling water channel and a water cooling cavity; a cooling water channel is arranged on the motor shell; the motor controller is provided with a water cooling cavity, and the cooling water channel is communicated with the water cooling cavity; the front fairing is connected to the left end of the integrated fan rotating shaft, and the rear fairing is connected to the right end of the motor controller. The integrated level is high, the size and the weight are reduced by reducing connecting parts, and the power density is high; the system reliability is high; the system cooling efficiency is high; and the power level compatibility and the expandability are high.

The invention provides a common-mode denoising dual-laser frequency measurement ultrahigh-precision small-angle measurement reference device, which comprises a first light path mechanism, a second light path mechanism and a beat frequency measurement module, the first light path mechanism and the second light path mechanism are arranged in parallel, and the light path mechanism comprises a laser generation device, a narrow-band interference sheet, a microprism array and a first annular piezoelectric module. And the components are fixed on a high-precision horizontal rotating table (7). According to the ultrahigh-precision small-angle measurement benchmark device for common-mode noise elimination double-laser frequency measurement, the cavity length is changed by rotating the cavity mirror to cause frequency change, the variable quantity of the angle is converted into the change of the frequency difference of laser output by the two devices, the narrow-band interference sheet is used for assisting adjustment to perform mode selection, the cavity mode change and interference frequency selection are highly synchronous, and the measurement accuracy is improved. According to the invention, mode hopping of the laser output frequency is avoided, continuous tunability of the output frequency along with the rotation angle is ensured, the problem of continuous measurement is solved, and small-angle ultra-high-precision measurement is realized.

The invention discloses a heat exchange structure design method based on three-period minimal curved surface space subdivision. The invention provides a heat exchange structure design method based on a three-period minimal curved surface (TPMS) structure, and aims to improve the performance of efficient heat dissipation equipment. According to the method, by generating the Gyandroid structure and conducting multi-layer subdivision, the fluid flowing path is optimized, and the heat exchange efficiency is improved. Meanwhile, by adopting the lightweight composite material for construction, the structural weight is remarkably reduced, and the composite material is suitable for high-efficiency heat dissipation application in the fields of new energy automobile battery heat management, electronic equipment, aerospace and the like. Through finite element simulation analysis, the heat dissipation performance and mechanical strength of the structure are verified, efficient heat dissipation can be achieved in a limited space, and the service life of equipment is prolonged.

The embodiment of the invention provides a role playing model training method, and the method comprises the steps: obtaining a dialogue data set and a role setting set of a plurality of roles, and constructing a plurality of groups of training data based on the dialogue data set and the role setting set of the plurality of roles; on the basis of the multiple groups of training data, performing supervision and fine tuning on a pre-trained base model to obtain an initial role playing model; and obtaining a preference data set, and performing preference optimization on the initial role playing model based on the preference data set to obtain a target role playing model. The training method provided by the embodiment of the invention is carried out in stages, and different training samples are constructed in each stage to optimize the base model, so that the model can be aligned with role playing tasks, human preferences and value views, and finally a role playing model with excellent performance in the aspects of dialogue ability, role consistency, role playing attraction and the like is obtained.

The invention relates to the technical field of intelligent robots, and discloses a face recognition method of an intelligent robot, which comprises the following steps: step 1, lightweight face detection and feature extraction: performing face detection and feature extraction through a lightweight neural network structure, and combining model compression and edge calculation to reduce calculation complexity; and step 2, illumination and attitude adaptability is realized through multi-modal fusion, and face processing under different illumination and attitude conditions is carried out based on the extracted face features by utilizing fusion of an RGB image and an infrared image, adaptive illumination enhancement and 3D attitude correction. Through a multi-modal fusion technology, 3D attitude correction and self-adaptive illumination enhancement, different illumination conditions and attitude changes can be adapted, then the recognition stability of the system in a complex environment is remarkably improved, it is ensured that face recognition has high accuracy and robustness under the conditions of insufficient illumination, strong light or multi-angle offset, and the face recognition accuracy and robustness are improved. And the application requirements of the intelligent robot in multiple scenes are met.

The invention discloses a knowledge base information processing method and device, a storage medium and computer equipment, relates to the technical field of information processing, and mainly aims at solving the problems that an existing literature retrieval method is low in efficiency, poor in retrieval result correlation and low in accuracy. Obtaining standard text data; building a journal paper knowledge base based on the standard text data; performing vector representation processing on the standard text data, and constructing a mixed index corresponding to the standard text data based on the obtained knowledge vector; receiving a query text of a user, and rewriting the query text based on a preset hybrid retrieval strategy to obtain a target query text; and determining target journal paper data corresponding to the target query text from the journal paper knowledge base based on a pre-trained retrieval enhancement generation model and the mixed index, and generating a reply text based on the pre-trained retrieval enhancement generation model and the target journal paper data.

The invention relates to the field of aluminum alloy plates, and discloses a high-strength corrosion-resistant marine aluminum alloy plate and a processing technology thereof.The aluminum alloy plate comprises an aluminum alloy base material and a corrosion-resistant coating, and the aluminum alloy base material is prepared from, by weight, 0.4%-0.8% of Si, 0.5%-0.7% of Fe, 0.15%-0.4% of Cu, 0.1%-0.15% of Mn, 0.8%-1.2% of Mg, 0.04%-0.35% of Cr, 0.1%-0.25% of Zn, 0.05%-0.15% of Ti and the balance Al and inevitable impurities; the anticorrosive coating comprises the following raw materials in parts by weight: 40-65 parts of epoxy resin, 5-15 parts of a composite nano material, 3-7 parts of a modified curing agent, 1-5 parts of a curing agent, 1-3 parts of a wetting agent, 0.5-1 part of a defoaming agent, 0.1-1 part of a flatting agent and 0.1-0.5 part of a dispersing agent; the surface of the prepared aluminum alloy base material is coated with the anti-corrosion coating, the plate is subjected to subzero treatment after casting forming, and the composite nano material and the modified curing agent are added, so that the plate is endowed with excellent impact strength, corrosion resistance and flame retardance.

The invention provides a multi-channel radio frequency front-end module and a communication system, and the method comprises a local oscillator module which is used for generating a local oscillator signal; the up-conversion transmitting module is connected with the local oscillator module to receive the local oscillator signal; the down-conversion receiving module is connected with the local oscillator module to receive the local oscillator signal; the control system is respectively connected with the up-conversion transmitting module and the down-conversion receiving module and is used for generating a first radio frequency signal, sending the first radio frequency signal to the up-conversion transmitting module and receiving a second radio frequency signal from the down-conversion receiving module; wherein the up-conversion transmitting module is used for performing frequency mixing processing on a first radio frequency signal and a local oscillator signal and then outputting a first W-band signal, and the down-conversion receiving module is used for performing frequency mixing processing on a received second W-band signal and the local oscillator signal and then outputting a second radio frequency signal to a control system. Therefore, the embodiment of the invention can meet the application requirements in the millimeter wave radar field.

The invention relates to the technical field of lithium battery protection boards, in particular to an intelligent charging and discharging management system based on a lithium battery protection board, and solves the problems that in the prior art, although important guarantee is provided for safe use of a lithium battery, some defects still exist, the protection board fails, and the lithium battery protection board is prone to damage in the long-term use process. And potential safety hazards such as over-charging, over-discharging, short circuit and the like of the battery cannot be effectively prevented. An intelligent charging and discharging management system based on a lithium battery protection board comprises system initialization, real-time battery state monitoring, charging management, discharging management, battery cell balance management, fault diagnosis and early warning, data recording and analysis, and system dormancy and awakening. According to the intelligent charging and discharging management system based on the lithium battery protection board, the service efficiency of the battery is improved, the service life of the battery is prolonged, through accurate electric quantity monitoring and intelligent charging and discharging management, the system can avoid the phenomena of over-charging, over-discharging and over-current of the battery, and therefore the service life of the battery is effectively prolonged.

The invention discloses a magnetorheological polishing processing method for a NiP modified reflector, which comprises the following steps of: preparing a NiP modified layer, and carrying out ultra-precision turning processing and magnetorheological polishing modification processing on the NiP modified layer until the NiP modified layer meets index requirements. According to the magnetorheological polishing machining method for the NiP modified reflecting mirror, the NiP modified reflecting mirror blank workpiece is machined through ultra-precision turning and magnetorheological polishing, so that surface defects generated in the machining process of the NiP modified reflecting mirror blank workpiece can be effectively eliminated, and the machining efficiency can be improved; meanwhile, the surface shape precision and the surface quality of machining can be improved, the NiP modified reflector blank workpiece can be machined into the high-quality NiP modified reflector, and the method has the advantages of being few in machining defect, high in machining quality, high in machining efficiency, good in repeatability and the like; the method is of great significance in promoting wide application of the NiP modified reflector in the optical fields of visible light wave bands, shorter wavelength wave bands and the like.

The invention relates to the technical field of alloy materials, in particular to a high-strength alloy material based on a rail transit vehicle and a processing technology of the high-strength alloy material. Raw materials are smelted and cast to obtain a cast ingot; the cast ingot is sequentially subjected to solution treatment and aging treatment, and an alloy material is obtained; uniformly mixing the compound, mica powder, a curing agent and an epoxy diluent, adding epoxy resin, a defoaming agent and a flatting agent, and performing ultrasonic treatment to obtain a corrosion-resistant coating; the high-strength alloy material is obtained by sequentially grinding, polishing, cleaning and drying the surface of an alloy material, coating a corrosion-resistant coating, and curing to form a corrosion-resistant coating. The prepared high-strength alloy material has excellent mechanical properties, corrosion resistance and hydrophobicity, and is suitable for application requirements of rail transit vehicles.

The invention discloses a multi-speaker voice separation method and a related device, and relates to the technical field of voice processing, and the method comprises the steps: obtaining multi-speaker voice signals collected by a two-microphone array for a first speaker and a second speaker located in different directions; the phase difference of the two microphones is determined according to the multi-speaker voice signals, fixed beam forming processing aiming at a first area and fixed beam forming processing aiming at a second area are carried out on the multi-speaker voice signals, the first area is the area where a first speaker is located, and the second area is the area where a second speaker is located; determining voice time-frequency masks of speakers in two different directions according to the phase difference and the beam forming signals corresponding to the two areas respectively; and separating the voice signal of the first speaker and the voice signal of the second speaker from the signal of any channel of the voice signals of the multiple speakers according to the determined voice time-frequency mask. The multi-speaker voice separation method disclosed by the invention has a relatively good separation effect.

The invention relates to a process for gradient extraction of seaweed protein, algin and fucoidin in brown algae. The invention relates to a process for extracting seaweed protein, algin and fucoidin in brown algae, which comprises the following steps: carrying out superfine grinding on seaweed, adding water for extraction, filtering and separating to obtain water extraction filtrate, repeatedly dissolving the water extraction filtrate in the next batch of superfine ground seaweed, and circulating for 7 times to obtain saturated or supersaturated water extraction filtrate; adjusting the pH value of the water extraction filtrate to be acidic, and filtering and separating through a micro-filtration membrane to obtain seaweed protein and first filtrate; adding calcium chloride into the first filtrate, and settling to obtain algin and supernate; filtering the supernate through a polyethersulfone composite membrane to obtain a fucoidin concentrated solution; and carrying out spray drying on the concentrated solution to obtain fucoidin powder. The method solves the problem that other functional components are wasted due to the fact that only a single component can be extracted in an existing brown algae functional component extraction method, and also solves the problems of secondary pollution, poor product quality and high cost in an existing extraction method.

The invention discloses an underground space intelligent layout method and system, and the method comprises the following steps: S1, generating an initial layout through employing a graph theory method based on preset underground space layout knowledge and constraint conditions inputted by a user; s2, optimizing the initial layout through a comprehensive evaluation index by using a multi-objective optimization algorithm; and S3, visually displaying the layout result and the evaluation data. The layout system comprises a layout module, an optimization module and a visualization module, and the optimization module uses a multi-objective optimization algorithm to optimize the generated initial layout through comprehensive evaluation indexes. According to the method, the efficiency of underground space layout design is greatly improved, multiple key indexes such as function compatibility, people flow organization efficiency, average accessibility and space utilization rate are comprehensively considered, and it is ensured that the generated layout scheme achieves optimal balance in all dimensions.

The invention provides a borate loaded alpha-Fe2O3 photo-anode as well as a preparation method and application thereof, and belongs to the technical field of material science and photoelectrocatalysis. The preparation method comprises the following steps: S1, growing a beta-FeOOH film on FTO (Fluorine-doped Tin Oxide) conductive glass by utilizing a hydrothermal method; s2, the beta-FeOOH thin film is subjected to high-temperature annealing treatment in an inert atmosphere, and an alpha-Fe2O3 thin film is obtained; and S3, the alpha-Fe2O3 thin film is put into a boric acid solution to be soaked, then the soaked alpha-Fe2O3 thin film is subjected to low-temperature annealing treatment in an inert atmosphere, a borate thin film is formed on the surface of the alpha-Fe2O3 thin film, and the borate-loaded alpha-Fe2O3 photo-anode is obtained. According to the preparation method, the problems that alpha-Fe2O3 is poor in conductivity, low in charge transfer efficiency, high in overpotential of oxygen evolution reaction and the like are solved by means of the strategies of ion doping and surface loading of borate in the step S3, the photoelectrochemical performance of alpha-Fe2O3 is improved, and the borate loaded alpha-Fe2O3 photo-anode meets the application requirement in a photoelectrochemical cell.

The invention relates to a digital twin model construction method and device of a converter station and computer equipment. The method comprises the following steps: processing a visible light image of a converter station by adopting a motion recovery structure model and a multi-view stereoscopic model to obtain dense point cloud data of the converter station; fusing the dense point cloud data and the laser scanning point cloud data of the converter station to obtain geometric point cloud data of the converter station; constructing a grid model of the converter station according to the geometric point cloud data; according to the visible light image and the grid model, obtaining a visible light texture mapping relation corresponding to the visible light image, and according to the visible light image, performing registration processing on other multi-source images of the converter station to obtain other texture mapping relations corresponding to the other multi-source images; and obtaining a multi-source texture digital twin model of the converter station according to the grid model, the visible light texture mapping relation and other texture mapping relations. By adopting the method, the precision of the digital twin model of the converter station can be improved.

The invention belongs to the technical field of waveguide engraving, and particularly relates to a lightweight micro-nano femtosecond waveguide engraving process, which comprises the following steps of: designing a laser scanning path according to the size and the shape of a required waveguide; adjusting parameters of a femtosecond laser, then scanning the material substrate along a laser scanning path, monitoring the position of a laser focus in real time, and adjusting laser parameters or scanning speed according to monitoring feedback; the controllable local refractive index change is generated in the material substrate by using the ultrashort pulse generated by the femtosecond laser, so that the direct waveguide structure formation without chemical etching is realized. By accurately controlling the position, the intensity and the scanning path of a laser beam, a waveguide element with high consistency and stability can be created on the submicron scale; according to the invention, while the preparation process is simplified, the precision and consistency of the waveguide structure are improved, the production cost is reduced, and the environmental pollution is reduced, so that the application requirements of high-performance photonic devices are met.

The invention relates to a ship ultra-high pressure water rust removal and wall-climbing cleaning equipment, comprising a cleaning disc, a first rotating wheel, a second rotating wheel and a third rotating wheel of a hub motor type arranged outside the cleaning disc, a magnetic adsorption component and a rotatable ultra-high pressure nozzle component are arranged on the cleaning disc, a first driving mechanism for driving the first rotating wheel and the second rotating wheel to synchronously change direction is arranged between the first rotating wheel, the second rotating wheel and the cleaning disc, a second driving mechanism for driving the third rotating wheel to change direction is arranged between the third rotating wheel and the cleaning disc, a shock absorbing mechanism is arranged between the first rotating wheel, the second rotating wheel and the first driving mechanism, and between the third rotating wheel and the second driving mechanism, a third driving mechanism for driving the second rotating wheel to change direction is arranged between the second rotating wheel and the shock absorbing mechanism, based on the ultra-high pressure water rust removal, a rotating wheel type is adopted to replace a crawler type structure, and a shock absorbing mechanism is carried to obtain better space utilization, which is beneficial to automation efficiency and stability, and meets the application requirements of green ship repair surface treatment.

The invention discloses a modified allyl benzoxazine resin composition, a layer-adding film as well as a preparation method and application of the layer-adding film, and belongs to the technical field of composite materials. The modified allyl benzoxazine resin composition comprises modified allyl benzoxazine resin, functional resin, a curing agent, a curing accelerator, an inorganic filler and an auxiliary agent, the modified allyl benzoxazine resin is prepared from the following raw materials: a modifier and allyl benzoxazine resin, the modifier comprises a first modifier; the first modifier is an amine fluorine-containing compound; the amine fluorine-containing compound is 2, 2-bis (4-allyloxyphenyl) hexafluoropropane, and the amine fluorine-containing compound is 2, 2-bis (4-allyloxyphenyl) hexafluoropropane. According to the invention, the amine fluorine-containing compound is adopted to modify the allyl benzoxazine resin, so that the modified allyl benzoxazine resin composition with low dielectric constant, low dielectric loss and low water absorption rate can be prepared, and the application requirements of a film increasing layer are met.

The invention discloses an enterprise computing power resource allocation scheduling method and system, and particularly relates to the technical field of resource allocation scheduling. A test task is generated by simulating a real scene, scheduling success rate fluctuation features and conflict resolution efficiency features are extracted, scheduling accuracy is evaluated through a machine learning model, and accuracy scheduling, incomplete accuracy scheduling and inaccuracy scheduling are classified according to results; for accurate scheduling, an existing strategy is kept, and continuous monitoring is carried out; for inaccurate scheduling, an algorithm is reconstructed; for incomplete accuracy scheduling, the proportion of the resource pool is dynamically adjusted by predicting the abnormal degree, and the low-priority task is switched to the standby resource pool when the abnormal degree is high, so that the rationality of resource allocation and the scheduling accuracy are remarkably improved, and the real-time performance and the resource utilization efficiency of the key task are guaranteed; and the system scheduling failure rate and the economic loss caused by resource conflicts are reduced.

The invention discloses a method for monitoring the bonding slip performance and deterioration evolution of an interface in a combined member, and the method comprises the following steps: carrying out the degreasing cleaning pretreatment of a section with relatively high rigidity in a to-be-detected combined member, and obtaining a pretreated section; distributed optical fiber sensors based on Rayleigh scattering are arranged on the surface of the pretreated profile in the direction of measured cohesive force; bonding the profile on which the distributed optical fiber sensors are arranged with a to-be-detected matrix through an adhesive to prepare a combined component; a uniaxial tensile test is conducted on the combined component, distribution and evolution of steel bar strain in the test process are recorded through a distributed optical fiber sensor, distribution and evolution of the bond-slip relation are obtained, the local bond-slip relation can be researched, and the applicability and precision of a bond-slip model are improved; before uniaxial stretching, working conditions are applied to the composite structure to degrade the structure, and the influence of degradation on the bonding performance of the composite structure can be evaluated.

The invention belongs to the technical field of high-dielectric composite materials, and provides a terahertz-band high-dielectric low-loss composite material and a preparation method thereof.The composite material comprises a first composite master batch material; the raw materials of the first composite master batch material comprise a modified first filler, a modified first insulating material and a non-polar polymer; a second composite master batch material; the raw materials of the second composite master batch material comprise a modified second filler, a modified second insulating material and a non-polar polymer; and a non-polar polymer matrix; wherein the surface of the modified first filler is grafted with a polystyrene monomer; the surface of the modified second filler is grafted with an epoxy functional group; grafting a silica group and an amino group on the surface of the modified first insulating material; the surface of the modified second insulating material is grafted with an epoxy functional group and an amino group; by adopting the multi-particle-size modified high-dielectric-constant filler and combining with the modified insulating filler, the problem that an existing terahertz-band high-dielectric composite material is difficult to have low loss at the same time can be solved.

The invention discloses photocuring 3D printing metal slurry and a preparation method thereof.The photocuring 3D printing metal slurry is prepared from, by mass, 30%-77% of organic monomers, 0.001%-20% of dispersing agents, 0.1%-6% of photoinitiators and 10%-67% of composite powder; the composite powder comprises an organic shell and a metal core. The compatibility of an organic matter shell and an organic monomer of the composite powder in the slurry is better, and the chemical interaction force of the surface is larger, so that the dispersion of the composite powder in an organic monomer solution is promoted, and good stability is provided for the photocuring slurry; the refractive index of the organic matter serving as the shell is close to the refractive index of the organic monomer solution, the refractive index difference between the powder and the organic monomer solution is reduced, the curing thickness of the slurry is greatly increased, and the stable photopolymerization slurry with the good curing characteristic is obtained.

The invention discloses polypropylene resin, a preparation method thereof and a polypropylene material, the polypropylene resin is a binary copolymer of propylene and 1-hexene, and the impact strength at-20 DEG C is 3-7 KJ / m < 2 >. The polypropylene resin is prepared by adopting a solution polymerization method, and a titanium-containing Ziegler-Natta catalyst is adopted and comprises a main catalyst, a co-catalyst and an external electron donor; the internal electron donor in the main catalyst comprises a dicarboxylic acid ester compound and a 1, 3-diether compound. The polypropylene resin itself has high low temperature impact strength and low haze. The antioxidant, the deacidification agent and the anti-reflection agent are simultaneously added into the polypropylene resin base material, and the prepared polypropylene material has the characteristics of high low-temperature impact strength, high transparency, low ash content and the like, and meets the preparation of injection molding products in the fields of medical tube materials, medical packaging, food packaging and the like with relatively high requirements on low-temperature impact and transparency.

The embodiment of the invention discloses a vehicle information processing method and device and a medium, and the method comprises the steps: responding to a received configuration file issued by a cloud, generating a scene triggering model based on the configuration file, and determining a target signal related to the scene triggering model; processing real-time bus data of the vehicle according to the scene triggering model and the target signal to obtain a processing result; and uploading the processing result to a cloud. The purpose that the vehicle end can efficiently and flexibly change the data acquisition strategy according to the requirements of the cloud end is achieved, and therefore the requirements of vehicle full-life-cycle data application such as vehicle development testing, mass production operation, user experience improvement and after-sales troubleshooting can be met.