22results about How to "Widely distributed" patented technology

This invention belongs to the field of medical device technology and discloses a foot pressure relief device for diabetic foot. It includes a base, a pressure relief plate and a motor connected to the base, and a foot pedal and a transmission assembly connected to the pressure relief plate. The transmission assembly includes a crank, a first connecting rod, and a sliding seat. The crank is fixedly connected to the output shaft of the motor, and the sliding seat is connected to the pressure relief plate. The two ends of the first connecting rod are respectively connected to the crank and the sliding seat. The sliding seat is connected to a foot rolling shaft and a second connecting rod, and the second connecting rod is connected to a foot massage roller. A buffer spring is provided between the pressure relief plate and the base. The foot pedal has a through groove, and the foot rolling shaft is connected to a foot massage roller. This invention utilizes the foot rolling shaft / foot massage roller and the foot massage roller to simultaneously perform rolling massage on the sole and instep of the foot. The periodic oscillation of the pressure relief plate causes the heel and toes to alternately rise, resulting in good pressure relief for the foot.

This invention belongs to the field of hard carbon technology, specifically relating to a bamboo-based and lignin-based hard carbon composite material, its preparation method, and its applications. The process involves pretreating raw materials to obtain pretreated material; pretreating the pretreated material with an acidic oxidant to obtain acidic oxidant pretreated material; pre-oxidizing the acidic oxidant pretreated material to obtain pre-oxidized material; pre-carbonizing the pre-oxidized material under a protective atmosphere to obtain pre-carbonized material; pulverizing the pre-carbonized material to obtain pulverized material; acid washing followed by water washing to obtain purified material; soaking the purified material in acid, filtering, and drying to obtain soaked material; mixing the soaked material with a modifier, and high-temperature coating and carbonizing under a protective atmosphere to obtain bamboo-based coated hard carbon or lignin-based coated hard carbon. Mixing the two types of hard carbon and carbon coating yields a bamboo-based and lignin-based hard carbon composite material, which is used in negative electrode sheets and batteries. When applied to batteries, the hard carbon composite material of this invention can improve battery energy density.

A catalyst for the direct synthesis of acetic acid and ethanol from CO2 via a non-hydrogenation route, its preparation method, and its application are disclosed. This invention belongs to the field of catalyst technology and overcomes the shortcomings of existing acetic acid synthesis technologies. The solution involves using TiO2 nanotubes as the catalyst support, and the active component being a single metal Co or Pd, or a bimetallic composition of Co and Pd, with a loading of 3-7%. wt The catalyst is prepared by first using a hydrothermal method to prepare TiO2 nanotubes, and then using the TiO2 nanotubes as a carrier, impregnating, drying, and calcining to obtain the catalyst. When applied to a dual-channel fixed-bed step-by-step continuous reactor, the catalyst enables the one-step conversion of CO2 to ethanol and acetic acid via a non-hydrogenation route at low temperature and atmospheric pressure, avoiding the problem of insufficient hydrogen source in the CO2 hydrogenation route. The process of this invention is short, the conditions are mild, it does not require a high-energy-consuming syngas production step, the product composition is simple, and the subsequent separation energy consumption is low.

The invention relates to the technical field of biology, in particular to an SNP (Single Nucleotide Polymorphism) molecular marker related to soybean mosaic virus resistance, an amplification primer and application of the SNP molecular marker in soybean breeding. The SNP molecular marker is located at the 910489bp site of a No.7 chromosome of a soybean genome, and the polymorphism of the SNP molecular marker is C / A. The invention provides application of the SNP molecular marker related to the soybean mosaic virus resistance in identification or auxiliary identification of the soybean mosaic virus resistance. By providing the accurate, simple, convenient and low-cost SNP molecular marker and the detection method thereof, early-stage, rapid and efficient molecular-assisted selection of soybean mosaic virus resistance characters is realized, so that the breeding process of a new variety of disease-resistant soybeans can be remarkably accelerated, and the SNP molecular marker has important breeding application value.

The embodiment of the invention relates to the technical field of federated learning and information security, in particular to a federated multi-target scheduling method and system for industrial control crowdsourcing testing, which is characterized in that sensitive data such as ability, experience and the like of a tester are only reserved at a local terminal by constructing a framework combining local feature coding and federated model training, so that the test efficiency is improved, and the test efficiency is improved. Outward transmission is not carried out; only the model update quantity after the privacy enhancement processing such as gradient cutting and differential privacy noise injection is uploaded to the federated matching learning server, and only the model update quantity after the privacy enhancement processing is uploaded to the federated learning server, so that the leakage risk of concentrated data storage is avoided from the source, the requirements of privacy regulations such as GDPR and the like are completely met, and the reliability of the system is improved. Compared with traditional privacy technologies such as homomorphic encryption, the method has the advantages that the calculation and communication overhead is greatly reduced, the design of local matching degree calculation is matched, the task matching response speed is greatly increased, and the real-time requirement of industrial control system testing is met.

This invention discloses an alloy catalyst, comprising a support and a copper-ruthenium alloy supported on the support, wherein the copper-ruthenium alloy is: Cu 0.7 Ru 0.3 The alloy catalyst prepared by this invention can be used to prepare cyclopentanone. The catalyst has high activity, good stability, and low price. The reactants used in the reaction are renewable, widely distributed, and inexpensive. The preparation of cyclopentanone using the catalyst of this invention does not require the introduction of acid or alkali, which solves the problem of difficult acid treatment in the prior art. Furthermore, it is not corrosive to the reaction equipment, which is conducive to large-scale production.

This utility model discloses a road dust suppression spraying device, belonging to the field of road management technology, which solves the problems of poor dust suppression effect and high water cost on existing roads. The spraying device includes a double-arm lamp post, with symmetrically arranged mounting rods on both sides of the upper end of the lamp post. A water delivery pipe is provided on one side of the lamp post, and a spray pipe connected to the upper end of the water delivery pipe is provided on the mounting rod. The spray pipe is equipped with multiple multi-head low-pressure atomizing nozzles with different spray angles. The lower end of the water delivery pipe is connected to a main water supply pipe, which is connected to a water supply pump station. A control component for controlling the opening and closing of the pipeline is provided between the water delivery pipe and the main water supply pipe, and the control component is electrically connected to an environmental monitoring station. This utility model's road dust suppression spraying device effectively improves the dust suppression effect, solves the problems of small operating area and large water droplets caused by fog cannons, and has the characteristics of wide applicability and strong practicality.

The application relates to the technical field of industrial waste gas purification, and discloses an activated carbon adsorption industrial volatile gas purification equipment, which comprises an industrial volatile gas purification cabinet, a partition plate is fixedly installed in the industrial volatile gas purification cabinet, a waste gas inlet pipe located below the partition plate is fixedly communicated with the left side of the industrial volatile gas purification cabinet, two volatile gas purification treatment boxes located above the partition plate are fixedly installed in the industrial volatile gas purification cabinet, and the sides, away from each other, of the two volatile gas purification treatment boxes both extend to the outside of the industrial volatile gas purification cabinet. The application has the following advantages and effects: the two volatile gas purification treatment boxes are alternately used to comprehensively and efficiently adsorb and purify volatile gas in industrial waste gas, the activated carbon particles in the volatile gas purification treatment boxes can be replaced without stopping the machine, the work efficiency is improved, and the continuity of industrial production and waste gas purification treatment is ensured.

The invention discloses a ferric sodium pyrophosphate composite positive electrode material and a preparation method and application thereof. The composite positive electrode material is composed of ferric sodium phosphate pyrophosphate and carbon, the surface of the ferric sodium phosphate pyrophosphate is coated with the carbon, the molar ratio of sodium to iron to phosphorus is 4: (3-y): 4, y is larger than 0 and smaller than or equal to 0.5, the carbon content is 1-10 wt%, and the composite positive electrode material does not contain associated phases. The preparation method comprises the following steps: adding water into an iron source, a sodium source, a phosphorus source and a carbon source to prepare a mixed solution, and drying to obtain precursor powder; sintering under the protection of inert gas to form a semi-finished body, carrying out ball milling or sand milling on the semi-finished body, and then carrying out spray drying; and finally sintering under the protection of argon or nitrogen to obtain a finished product. The raw materials are cheap and easy to obtain, process parameters are accurately controlled through a two-step heat treatment method, the compaction degree and the compaction degree of the material are remarkably improved, the electrochemical performance is optimized, and the preparation method has important application value in the field of sodium ion secondary batteries.

The invention discloses a method for preparing a sodium-ion battery hard carbon negative electrode material from sulfur-doped modified bamboo-based biomass and application of the sodium-ion battery hard carbon negative electrode material, and belongs to the technical field of sodium-ion battery negative electrode material preparation. The bamboo-based biomass is used as a raw material, a sulfur source is used as a modifier, water is used as a solvent, and the hard carbon negative electrode material for the sodium ion battery is obtained through mixing, drying, medium and low temperature pretreatment and high temperature carbonization. According to the preparation method disclosed by the invention, S has a relatively large covalent radius, so that the carbon layer spacing can be obviously enlarged, insertion, separation and diffusion of sodium ions are facilitated, and meanwhile, an active C-S bond is added, so that additional sulfur group redox active sites are provided; and the process is simple, the cost is low, and the sodium ion battery has the characteristics of high capacity and high rate performance.

The application discloses a red clay phosphorus adsorbent, which comprises 115-145 parts of red clay particles, 20-30 parts of diatomite, 10-15 parts of glass powder and 3-10 parts of marble powder; and the preparation process comprises the following steps: preparing the red clay particles, weighing the raw materials, crushing, calcining and mixing. The red clay has good adsorption performance on phosphorus, is rich in resources, has a wide distribution range and low cost, and is a natural environment-friendly material. When the red clay is put into sewage, no secondary pollution and other problems are caused, so the red clay has great development potential in the aspect of adsorbing phosphorus.

The application provides a molecular marker and identification method for identifying genuine producing areas and non-genuine producing areas of Astragalus membranaceus. The molecular marker contains a nucleotide sequence with a polymorphism of A / T at the 131st base of the sequence shown in SEQ ID NO: 1 of the 5th exon of Am02G035490 of the Astragalus membranaceus genome. The application also provides a method for identifying the genuine producing areas of Astragalus membranaceus by using the SNP molecular marker, which provides technical support for the precise traceability, stable quality and healthy and orderly development of the Astragalus membranaceus industry of the genuine producing areas of Astragalus membranaceus.

The application discloses a kind of lentinus edodes factory directional single side cultivation method, belong to lentinus edodes cultivation technical field, the application adds hydrated silica in lentinus edodes liquid culture medium, effectively controls lentinus edodes ball size using its high friction value, make its flowability stronger, and sodium calcium phosphosilicate can effectively improve lentinus edodes mycelium amount.Red and blue double film bag is used simultaneously with the characteristics of light transmission and oxygen injection, causing the difference in maturity of the surface of the stick, so as to realize the mature face mushroom, non-mature face energy supply.Through the special mushroom cultivation layer frame setting stick independent liquid supplement component, it can not only increase the connection firmness of lentinus edodes stick and frame, but also realize liquid supplement on cultivation layer frame.The application overcomes the difference in evaporation speed of the mushroom surface caused by the stick layer block in the layer frame mode, significantly shortens the lentinus edodes cultivation period, realizes the stable synchronization of stick color change, directional mushroom, precise water replenishment, and has good economic benefits and application prospect.

The utility model discloses a raw material processing device for aluminum alloy production relates to aluminum alloy production technical field, including smelting furnace, the top of smelting furnace is connected with top cover, and the top cover is connected with stirring mechanism between smelting furnace, and stirring mechanism includes rotary rod and stirring vane. The utility model discloses rotary plate side edge is connected with the fender, to prevent the raw material overflow, and the top of feeding box is connected with rotary plate, and the board is equipped with pressure sensor, is used for monitoring the feeding pressure of raw material, when adding to certain weight, and the rotary plate is connected through the rotating mechanism between feeding box, and is driven rotation by rotary motor, and the gear ring is engaged in the outer periphery of gear, and is connected on the rotary plate through the rotary frame, and the gear ring drives the rotary frame rotation, imports the raw material on the rotary plate into feeding box, and the raw material is guided to realize raw material input through the guide plate, and rotary motor drives the rotary plate rotation, and raw material is conveyed from the rotary plate to feeding box through the rotating mechanism, realizes the automation of feeding process, and improves production efficiency.

The invention discloses application of fiveleaf gynostemma herb polysaccharide in preparation of medicine for treating ulcerative colitis, the main structure of the fiveleaf gynostemma herb polysaccharide is shown in the specification, research proves that the prepared fiveleaf gynostemma herb polysaccharide has an excellent treatment effect on ulcerative colitis for the first time, activation of NLRP3 inflammasome is inhibited by activating an NRF2 anti-oxidation pathway, and the curative effect of the fiveleaf gynostemma herb polysaccharide on ulcerative colitis is improved. The bacterial flora abundance of bacteroides and thick-walled mycophylum is increased, and the bacterial flora abundance of proteobacteria is reduced, so that the ROS level is reduced, the inflammatory response is reduced, and the intestinal mucosal barrier repair of DSS mice is promoted.

This application discloses an indoor fireproof distribution box, relating to the field of distribution box technology. The fireproof distribution box has a hinged door on its front and ventilation windows on its side walls. A fire extinguishing assembly is installed on the top of the fireproof distribution box. The fire extinguishing assembly includes a mounting base, the lower end of which is fixedly connected to the top of the fireproof distribution box. A gas storage tank is fixedly connected to the surface of the mounting base. The gas storage tank stores fire extinguishing gas, and a gas delivery pipe is fixedly connected to the surface of the gas storage tank. A switch assembly is installed on the surface of the gas delivery pipe. This application delivers fire extinguishing gas into the fire extinguishing pipe via the gas delivery pipe. The gas is then rapidly ejected through multiple exhaust ports on the surface of the fire extinguishing pipe, covering the interior space of the distribution box. Because the fire extinguishing pipe is S-shaped, it can be more widely distributed within the box, allowing the fire extinguishing gas to be more evenly distributed, quickly and effectively extinguishing the fire source, preventing the spread of fire, and reducing damage to the fireproof distribution box and its internal electrical equipment.

The utility model discloses a device for collecting greenhouse gas in a greenhouse, and solves the technical problem that the greenhouse gas in the greenhouse is difficult to collect due to high temperature when the existing gas concentration detection method is difficult to be applied to the greenhouse closing period. The device comprises a supporting pipe, a silica gel hose, an air exhaust pipeline, an air exhaust device and an air storage bag, a plurality of small holes are sequentially formed in the supporting pipe, the silica gel hose is arranged in the supporting pipe, one end of the silica gel hose extends out of the small holes of the supporting pipe to be communicated with the interior of the greenhouse, the other end of the silica gel hose is communicated with the air exhaust pipeline, the air exhaust pipeline is communicated with the air exhaust device arranged outside the greenhouse, and an air outlet of the air exhaust device is connected with the air storage bag. The air exhaust device provides power, and air in the greenhouse is exhausted out of the greenhouse through the silica gel hose and the air exhaust pipeline. The greenhouse gas collecting device is low in manufacturing cost, simple in structure and convenient to disassemble and assemble, the storage battery is arranged on the greenhouse gas collecting device so that the greenhouse gas in the greenhouse can be conveniently used outdoors, and the function of automatically collecting greenhouse gas in the greenhouse during the high-temperature greenhouse closing period in summer is achieved.

This utility model discloses a front-end pipeline arrangement structure for online sludge removal from raw brine tanks, belonging to the field of heat pump salt production technology. Its features include: a raw brine tank body, sludge removal pipes, and auxiliary pipes connected to the sludge removal pipes at the front end; at least two sludge removal pipes and a corresponding number of auxiliary pipes form a sludge removal pipe group. The sludge removal pipes and auxiliary pipes of the sludge removal pipe group penetrate the tank wall from the outside of the raw brine tank body and form a Y-shaped distribution on the inside of the raw brine tank body. The sludge removal pipe groups are evenly distributed circumferentially on the raw brine tank body, and the inner openings of all the sludge removal pipes of the sludge removal pipe groups are evenly distributed circumferentially on the inside of the raw brine tank body. This front-end pipeline arrangement structure exhibits excellent performance in terms of structural rationality, sludge removal effect, system maintainability, and operational safety, and is a key technical support for achieving efficient online sludge removal from raw brine tanks.

This application discloses a rectifying electrostatic precipitator, belonging to the field of dust collector technology. By sequentially setting a guide layer, a mixing layer, and a stabilizing layer in the inlet conical section of the outer shell, multiple airfoil-shaped guide elements in the guide layer evenly distribute the airflow, directing it across the entire inlet conical section of the outer shell. Multiple sets of grid holes in the mixing layer employ a staggered grid design to break up large-scale eddies in the flue gas guided by the guide layer, reducing them to smaller sizes and achieving initial velocity equilibrium. The stabilizing layer features a honeycomb open-cell design; the honeycomb structure effectively manages the airflow and stabilizes the velocity. Thus, the flue gas undergoes a three-stage process of "guidance-breakup-management" to achieve refined flow field treatment, improve velocity distribution uniformity, and reduce inlet local resistance.

The invention provides a magnetic drive pump impeller multi-objective optimization design method, and relates to the technical field of impeller multi-objective optimization design methods.The magnetic drive pump impeller multi-objective optimization design method comprises the steps that optimal Latin hypercube sampling is adopted to sample a design parameter space to generate a first sample set, and the total rotational inertia corresponding to each sample point is obtained through a total rotational inertia model; randomly generating a target number of new sample points by adopting an NSGA-III algorithm, and selecting a next generation of parent sample points from the leading edge levels; generating a filial generation sample point until the maximum evolution algebra of the sample point is reached; and setting a magnetic transmission stability dominant screening criterion, and obtaining geometric parameters corresponding to the leading edge sample points meeting the screening condition as optimization data. The total rotational inertia is used as a preposed physical screening criterion, so that the optimization process synchronously considers the specific transmission stability requirement of the magnetic drive pump from the source, and a set of efficient intelligent optimization process is formed in combination with optimal Latin hypercube sampling, rotational inertia-based physical pre-screening and an NSGA-III multi-objective evolutionary algorithm.

The application is based on the aerofoil ceramic core trimming path consistency evaluation method based on point cloud segmentation, which comprises the following steps: firstly, obtaining the ceramic core point cloud data and the elliptical hole trimming path, preliminarily segmenting the point cloud near the elliptical hole, then completing the establishment of the local coordinate system based on RANSAC, realizing the coordinate conversion of the point cloud near the elliptical hole from the world coordinate system to the local coordinate system, then establishing the elliptical hole arc chamfer model under the local coordinate system, realizing the point cloud segmentation and model fitting of the elliptical hole arc chamfer based on particle filtering, and finally completing the aerofoil ceramic core trimming path consistency evaluation combined with the model parameters and the trimming path. The application simultaneously considers the influence of the shrinkage deformation of the ceramic core and defects such as burrs, flash and hole blockage on the parameter fitting and point cloud segmentation, and the influence of the position deviation of the path points and the deviation of the laser trimming direction on the alignment degree of the path edges, thereby improving the accuracy, robustness and reliability of the path consistency evaluation, and meeting the accuracy requirements of the feedback index for improving the trimming path generation algorithm.

The present application relates to the technical field of bulk material structure, and particularly relates to a vertical cement raw material mill spraying material device, which comprises a feeding pipe, a first disc and a second disc, the first disc and the second disc are arranged in an up-down distribution, and the first disc and the second disc are coaxially arranged, a space between the first disc and the second disc is set as a material uniformizing space, the feeding pipe is vertically installed on the top of the first disc and is used for feeding material into the material uniformizing space, a baffle ring is arranged at the edge position of the second disc, and the first disc is in contact with the baffle ring; the second disc is designed to rotate and spread the raw material outward, combined with the annular distribution of the plurality of bulk material long groove plates, so that the raw material is not only evenly scattered in the circumferential direction, but also achieves more extensive distribution in the radial direction, and the "planar" falling mode greatly improves the distribution uniformity of the raw material in the raw material mill, which is beneficial to improve the grinding quality and efficiency.