18results about How to "Adjustable parameters" patented technology

The invention discloses a laser scanning imaging detection system for a large belt conveyor, and relates to the technical field of laser scanning imaging, a laser scanning module is used for carrying out full-width laser scanning on the running surface of a conveyor belt, and a data acquisition module obtains continuous point cloud data frames and caches the continuous point cloud data frames to form a sliding point cloud sequence; the reference modeling module performs curved surface fitting on the point cloud sequence to establish a band body reference model; the defect positioning module identifies a local abnormal region based on the height deviation; the feature extraction module extracts multi-dimensional morphology parameters of the abnormal region to form defect candidate vectors; the defect identification module inputs the vector into a lightweight convolutional neural network, and outputs a defect type and a confidence score; the alarm output module triggers an alarm when the threshold value and the inter-frame continuity condition are met; the system has the characteristics of high detection precision, strong robustness and intelligent recognition, and is suitable for online detection of surface defects of the conveyor belt in a complex environment.

The application discloses a kind of based on fan available kinetic energy and energy storage SOC state of wind storage collaborative frequency support control method, comprising: establishing direct-drive permanent magnet synchronous wind generator grid-connected model;Based on direct-drive permanent magnet synchronous wind generator grid-connected model, in direct current side and into energy storage device and carry out energy storage grid-connected DC / DC converter direct current voltage control design;Design direct-drive permanent magnet synchronous fan side converter and grid-side converter control strategy, combined with direct current side energy storage device constructs wind storage integrated system architecture;According to wind storage integrated system operating condition calculation fan rotor kinetic energy and energy storage available energy, obtain wind storage system total available kinetic energy;Based on wind storage system total available kinetic energy carries out wind storage grid-connected system side converter and grid-side converter control parameter design, proposes wind storage collaborative frequency support grid-connected strategy.The application aims at providing a kind of wind storage collaborative frequency support control method considering operating condition, can significantly improve the frequency stability of high proportion wind power system.

The invention relates to the technical field of biomedical materials, in particular to a double-network hydrogel material for bionic cartilage and subchondral bone and a preparation method of the double-network hydrogel material. According to the double-network hydrogel material for the bionic cartilage and the subchondral bone, polyvinyl alcohol is adopted as a first network skeleton, and a high-toughness hydrogel structure is formed through a circulating freezing and thawing method; sulfobetaine methacrylate and a calcium chloride solution are introduced as a second network cross-linking system, so that the material is endowed with excellent hydrophilic lubrication performance; furthermore, liposome microspheres are compounded to form a self-renewal liposome boundary layer, so that the friction coefficient is remarkably reduced; the material has high strength, high toughness, low friction, self-lubrication and biocompatibility, is suitable for precise repair and functional reconstruction of osteochondral defects such as femoral head necrosis and the like, and has a wide clinical application prospect.

The application discloses a rare earth cloth distributing machine and relates to the technical field of cloth distributing equipment; the rare earth cloth distributing machine comprises a main frame, a transverse frame, a material guiding mechanism and a cloth distributing mechanism, a sealed bin is arranged above the transverse frame in the middle of the main frame, the transverse frame is located at the lower end of the main frame, the material guiding mechanism and the cloth distributing mechanism are located in the middle of the sealed bin, the material guiding mechanism is located above the cloth distributing mechanism, the cloth distributing mechanism comprises positioning rods, bottom plates are fixedly installed at the middle portions of the two positioning rods, blanking holes are formed at the two ends of one side of the middle portion of each bottom plate, and transmission rods are rotatably installed at one end of each positioning rod; the rare earth cloth distributing machine is adjustable in parameters, high in cloth distributing precision, and strong in adaptability; the blanking rate can be accurately controlled by adjusting the inclination of the blanking plate through a screw rod; the mold is accurately positioned by matching a lead screw, a guide rod and a position sensor; full coverage cloth distribution is realized by matching the discharge cover; the cloth distribution is good in uniformity and can be adapted to the production of molds of various specifications.

This invention relates to a high-performance lithium-ion battery anode material, Si@void@C@NC, and its preparation method, belonging to the field of composite material technology. First, powdered Si@SiO2 is prepared using an air oxidation method. Second, Si@SiO2 is dispersed in a mixed solution of deionized water and ethanol, and Si@SiO2@RF is synthesized via a sol-gel method. Then, Si@SiO2@RF@MOFs are prepared using a MOF self-templating method. Finally, the Si@SiO2@RF@MOFs are calcined and etched to obtain the product Si@void@C@NC. This invention uses silicon as the core, and through oxidation, coating, in-situ growth of bimetallic MOFs, high-temperature carbonization, and etching, a yolk-double-shell structure with a reserved cavity is formed. After calcination, the bimetallic MOF is transformed into a porous carbon framework doped with NiCo alloy. The yolk-double-shell structure provides a buffer space for the volume expansion of silicon, the porous carbon layer can alleviate expansion stress, improve conductivity, and shorten the ion and electron transport path, and the NiCo alloy combines the synergistic effect of bimetals with the reinforcing effect of a concrete-like structure. The structural stability and electrochemical performance of the material are optimized by adjusting the proportion of nickel and cobalt ions added.

The application is a kind of impeller blade for full hydrogen strong convection cover type annealing furnace platform fan, which is used to increase the heat obtained by steel coil during the use of full hydrogen strong convection cover type annealing furnace. The blade body of the impeller blade for full hydrogen strong convection cover type annealing furnace platform fan includes vertical flat piece and curved piece, and the curved piece is connected to the upper side of the vertical flat piece. The rear surface of the curved piece is part of a conical surface, and the front surface is parallel to the rear surface. The generatrix of the conical surface is the intersection line of the rear surface of the vertical flat piece and the rear surface of the curved piece. The apex of the conical surface is located between the center line of the impeller and the intersection line. The rotation axis of the conical surface is arranged on the plane perpendicular to the vertical flat piece, and the rotation axis is located behind the curved piece. The optimization design of the structure of the impeller blade makes the impeller meet the requirements of fluid mechanics, high speed and high temperature. In full hydrogen atmosphere, the air volume can reach 60000m 3 / h.

The utility model discloses a kind of based on double-acting cylinder's ricefield eel fertilized egg hatching device, it is related to aquaculture equipment technical field, by hatching frame, lifting frame, hatching net, air compressor, PLC controller, air pipe, signal line, two-position five-way solenoid valve composition, lifting frame is located on hatching frame, hatching net is connected in the lower portion of lifting frame and is in hatching barrel, air pipe is connected two-position five-way solenoid valve after from air compressor, then connect double-acting cylinder, signal line connects PLC controller and two-position five-way solenoid valve and then controls movement action.The device can be automated, realize fertilized egg to carry out sustained, uniform lifting, effectively promote dissolved oxygen, prevent water mould, to improve hatching rate.

This utility model discloses a test stand for I-V curve diagnosis with adjustable light source, relating to the field of I-V curve diagnostic testing technology. It includes a main unit, a first cover plate, a second cover plate, a control panel, and a second adjustment block. A dimming mechanism is provided above the main unit, comprising a lamp disk, an adjustment bolt, a limiting flap, and an orientation groove. The orientation groove is located on the side of the main unit, the limiting flap is located on the side of the lamp disk, the adjustment bolt is located on the side of the limiting flap, and the limiting flap is installed in the orientation groove. The test stand is equipped with a dimming mechanism including a lamp disk, an adjustment bolt, a plum blossom-shaped limiting flap, and an orientation groove. Twisting the adjustment bolt causes the limiting flap to rotate within the orientation groove, achieving precise adjustment of the lamp disk angle and stable positioning, avoiding vibration and deviation. Three different types of light source beads are evenly distributed on the side of the lamp disk, allowing for switching of light source types without disassembly to adapt to different sample testing needs.

This utility model discloses a regulated power supply circuit. The circuit includes: a power supply module, an LDO module, an output adjustment module, and an output feedback module; the input terminals of the power supply module and the LDO module are electrically connected; the output terminal of the LDO module is electrically connected to the control terminal of the output adjustment module; the power supply module is also electrically connected to the input terminal of the output adjustment module; the output terminal of the output adjustment module is electrically connected to the input terminal of the output feedback module; the output terminal of the output feedback module is electrically connected to the feedback terminal of the LDO module; the output feedback module detects the real-time voltage signal output by the output adjustment module and feeds it back to the LDO module; the LDO module adjusts its output voltage control signal to the output adjustment module according to the real-time voltage signal; the output adjustment module, under the voltage control signal of the LDO module, stably outputs the voltage signal from the power supply module; wherein, the parameters of the output adjustment module are adjustable to make the output current of the regulated power supply circuit adjustable.

The present application relates to a kind of phosphorus-based bifunctional positive electrode lithium supplement material and its preparation and application, the positive electrode lithium supplement material includes the following weight percentage of raw material components: elemental phosphorus 10~50%, lithium fluoride 50~90%, ketchen black 1~10%.Compared with prior art, the phosphorus-based bifunctional positive electrode lithium supplement material provided in the present application can further prepare lithium supplement diaphragm and lithium supplement positive electrode and be used in lithium ion battery, which not only has higher theoretical capacity, can effectively compensate the irreversible capacity loss in the first cycle of battery, but also generates LiPF6 in situ under electrochemical conditions through the synergistic reaction of red phosphorus and lithium fluoride, realizes the synchronous supplement of active lithium and electrolyte lithium salt, improves battery initial coulomb efficiency and long-term cycle performance etc..

The application discloses a kind of complex disc aromatic substance separation column systems, it is related to aromatic substance extraction and separation technical field, including disc type rotary separation host computer, variable frequency driving motor, flowmeter, gas-liquid separator, condenser, collection tank and electric box controller etc.Modular, each component is connected by pipeline and electrical system and constitutes closed loop structure.The host computer is staggered with guide liquid disc and rotating disc inside, bottom is linked with variable frequency motor by rotating shaft, top is equipped with feed inlet and discharge port, side wall is equipped with steam heating port.When using, material enters host computer, forms liquid film on the surface of guide liquid disc, steam directional heating promotes aromatic component to volatilize, and rotating structure enhances centrifugal separation, and volatile gas is collected by collection tank after being condensed by gas-liquid separation and condensation system.The application is combined by multistage disc structure and steam heating technology etc., improves the extraction efficiency and condensation recovery rate of volatile component, solves the problem of low aromatic recovery efficiency in traditional device.

This invention discloses a method for preparing a self-supporting alkaline water-splitting electrode material, belonging to the technical field of water electrolysis catalytic materials. Using high-porosity nickel foam as a self-supporting substrate, after surface pretreatment to remove impurities and oxide layers, a nickel-iron binary metal precursor nanosheet array is grown in situ on the substrate via a hydrothermal method. Then, a low-temperature phosphating modification combined with annealing crystallization process is used to prepare a nickel-iron-phosphorus oxide composite self-supporting water-splitting electrode material. This invention abandons the traditional binder molding process, ensuring a strong bond between the active components and the substrate, effectively reducing electrode interfacial impedance and enriching catalytic active sites. The synergistic effect of the nickel-iron bimetallic material and phosphating modification optimizes the electrode's electronic structure, giving the electrode excellent dual-function catalytic performance for hydrogen and oxygen evolution. It exhibits strong corrosion resistance and good cycle stability in strongly alkaline electrolytes. The preparation process of this invention is mild, simple to operate, highly reproducible, and low in production cost, enabling large-scale industrial production. The resulting electrode can effectively reduce energy consumption in alkaline water splitting and is suitable for various applications such as industrial green hydrogen preparation and water electrolysis energy storage, possessing broad market application prospects.

The application provides a preparation method and an electrolyte of a semi-solid energy storage composite electrolyte for gas turbine black start, belongs to the technical field of electrochemical energy storage and power system black start, and can at least partially solve the problem that existing composite electrolytes cannot meet the four core working condition requirements of instantaneous high-power impact, wide temperature range adaptation, long-period standing standby and high safety without thermal runaway during black start, the application prepares La2Ti2O7@SnO2 piezoelectric heterojunction nanofibers, and based on the La2Ti2O7@SnO2 piezoelectric heterojunction nanofibers, an electrolyte precursor solution is prepared by combining a composite polymer matrix, a composite plasticizer, a conductive lithium salt and a coordination self-assembly agent, and a composite electrolyte is prepared through natural gradient solvent regulation and a segmented curing process, and the four core working condition requirements of instantaneous high-power impact, wide temperature range adaptation, long-period standing standby and high safety without thermal runaway during black start are simultaneously solved.

The present application relates to the technical field of biomedical materials and the technical field of treating osteoarthritis, and particularly relates to a metabolism reprogramming hydrogel system targeting chondrocytes and a preparation method and application thereof; the preparation steps are as follows: (1) extracting chondrocyte membranes and co-extruding FGF21 to prepare targeted nanoparticles; (2) synthesizing Prussian blue nanoszyme; (3) preparing benzene boronic acid modified hyaluronic acid and constructing a ROS responsive hydrogel matrix with polyvinyl alcohol; (4) loading the two functional nanoparticles in the hydrogel precursor solution, and crosslinking to obtain a composite hydrogel system. The hydrogel system constructed by the present application has multiple functions of chondrocyte homologous targeting, ROS response on-demand release, inflammation microenvironment remodeling and cell metabolism reprogramming, can significantly prolong the intra-articular retention time of FGF21, improve the targeting enrichment efficiency, synergistically restore the arginine metabolism homeostasis of chondrocytes, repair cartilage damage and improve joint function, and has excellent biocompatibility.

The present application relates to a kind of multi-dimensional variable hysteresis damper based on S-shaped shape memory alloy metal plate, belong to bridge damping technical field.It includes upper connecting plate, box-like connecting piece, first S-shaped metal plate, second S-shaped metal plate, center displacement sleeve, inner cylinder, bolt and nut.The first S-shaped metal plate and the second S-shaped metal plate are made of low yield soft steel material and shape memory alloy material respectively;Upper connecting plate and box-like connecting piece bottom panel are connected with the cap beam and the main beam of bridge respectively, when the relative displacement of main beam and cap beam occurs, inner cylinder will drive center displacement sleeve movement, then drive the first and second S-shaped metal plate deformation, play self-resetting function and energy dissipation function.There is an oval hole in the center of center displacement sleeve, oval hole and inner cylinder have interval, when inner cylinder displacement exceeds certain limit value, center displacement sleeve can be driven to move.The present application can deform in multiple directions, has multidimensional seismic capacity, can realize stage seismic effect.

The invention relates to an end system adaptive time slot escorting and synchronous control method based on a Linux kernel. The method comprises the following steps: establishing a unified time reference of an end system based on a time service mechanism; based on a unified time reference and a secure transmission constraint condition, constructing an inner-layer schedule on a kernel side through a time-aware queue rule, forming outer-layer escort on a port side through a gating list, and constructing to obtain a double-layer time slot escort structure; and constructing an adaptive guard band and phase compensation control law based on the jitter state and the alignment error of the clock, and adaptively adjusting the guard time band and windowing phase compensation of the double-layer time slot escort structure based on the control law so as to realize adaptive time slot escort and synchronous control of the end system. In the prior art, jitter exists in a transmission process from an end system kernel to a physical port, which may cause transmission time slot border crossing; and the problems of drifting of a dispatch table, non-uniform corresponding relation between service priority and a time slot table and the like caused by master clock switching or time service lock losing are solved.

The utility model relates to the technical field of feeding equipment, in particular to a horn vibration feeding machine which comprises a machine frame, a vibration feeding mechanism arranged on the machine frame, a material conveying track and a linear vibration mechanism, and the vibration feeding mechanism is provided with a vibration disc, a spiral feeding track arranged in the vibration disc and a vibration source providing power for the vibration disc. The input end of the material conveying track is connected with the tail end of the spiral feeding track, and the output end is connected with the rack through a linear vibration mechanism; the vibration source drives the vibration disc to vibrate, the horns are conveyed to the input end of the material conveying rail through the spiral feeding rail in the vibration disc, the linear vibration mechanism drives the material conveying rail to vibrate linearly, and the horns move in order towards the output end in the material conveying rail. According to the horn vibration feeding machine, automatic feeding and orderly conveying are achieved, the feeding efficiency is improved, and the labor cost is reduced; personal errors are reduced, and product quality is guaranteed; the structure adapts to various working conditions, the universality is high, and the stability is high.

The invention relates to an acid-base-rich site composite hybrid structure catalyst and a preparation method and application thereof, and belongs to the technical field of polyester chemical recovery and solid catalysis. The invention provides an acid-base-rich site composite hybrid structure catalyst which comprises calcium carbonate and calcium titanate, the mass ratio of the calcium carbonate to the calcium titanate is (1-21): 9, and the catalyst is a mesoporous material with the pore diameter of 2-50 nm. The catalyst has both Lewis acid site and alkaline site and contains detectable oxygen vacancy, the mesoporous structure and the high specific surface area of the catalyst are beneficial for improving diffusion and site utilization rate of macromolecular substrates, the catalyst shows excellent alcoholysis activity to polyester materials at proper temperature, high-selectivity recovery of monomers is achieved, and the catalyst can be used for continuous reaction of a fixed bed and can be applied to industrial production. The excellent continuous use stability is realized.