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183results about How to "Cost effective" patented technology

Network threat deduction system and method based on Transform and graph attention network model

The invention discloses a network threat deduction system and method based on Transform and a graph attention network model. The system mainly comprises four modules including a threat intelligence extraction module, a network threat entity construction module, a network threat deduction module and a deduction result application module. The method comprises the following steps: preprocessing and mining network security threat intelligence data by utilizing a graph attention network (GAT) model, constructing a complete network threat intelligence knowledge graph based on a data association relationship, and determining a vulnerability utilization weight in the graph; modeling is carried out on a reasoned path sequence based on a Transform model, a next reasoning sequence is predicted in a generative mode, and rapid and efficient network threat intelligence reasoning is achieved. According to the method, the complexity of attack deduction calculation is reduced, the deduction efficiency is improved, and security risk investigation and early warning can be carried out for a large-scale network environment.
Owner:CHINESE PEOPLES LIBERATION ARMY 92493 UNIT INFORMATION TECH CENT

Data acquisition method and device based on multi-order queue and electronic equipment

The invention provides a data acquisition method and device based on a multi-order queue and electronic equipment, and the method comprises the steps: obtaining production data generated by industrial control equipment; according to the acquisition frequency, the production data is distributed to each level queue of the multi-level queue, the queue number of each level queue is adjusted according to the real-time data volume of each queue in each level queue, and each level queue is used for caching the production data of different acquisition frequencies; according to a data packaging strategy, the production data in the multi-order queue is packaged, and the data packaging strategy comprises a timing packaging strategy and a quantitative packaging strategy; and uploading the packaged production data to an industrial Internet of Things platform. Production data acquisition is performed through the multi-order queue, so that the processing pressure of a single queue can be effectively relieved, the data transmission frequency is reduced, and the resource consumption is reduced, thereby improving the efficiency and reliability of data acquisition.
Owner:CISDI INFORMATION TECH CO LTD

Porous substrate reinforced anion exchange membrane as well as preparation method and application thereof

The invention discloses a porous substrate reinforced anion exchange membrane and a preparation method and application thereof, and relates to the technical field of anion exchange membranes. The porous substrate reinforced anion exchange membrane is prepared by the following steps: uniformly mixing a polyarylene alkylene type cationic polymer solution and a C1-C10 alcohol solvent, then coating two sides of a porous substrate with the mixture, and drying to obtain the porous substrate reinforced anion exchange membrane. And removing the solvent to obtain the product. According to the method, the porous substrate can be well infiltrated by the cationic polymer solution without pre-treating the porous substrate, so that the porous substrate reinforced anion exchange membrane with a sandwich-like structure is obtained. The film has outstanding swelling resistance and excellent mechanical properties, has good electrochemical properties, and has good application prospects in alkaline film energy conversion devices.
Owner:HEFEI UNIV OF TECH +1

Organic pigment drying equipment

The utility model discloses organic pigment drying equipment which comprises a box body, a smashing assembly used for smashing organic pigment is arranged in the box body, a drying assembly used for drying the organic pigment is arranged on the outer surface of the box body, and an extracting assembly used for extracting the unsmashed organic pigment is arranged on the outer surface of the box body. A screening assembly for screening the organic pigment is arranged in the box body; the collection frame is arranged to collect uncrushed organic pigment, the pump body is utilized to drive the extraction pipeline to extract the organic pigment in the collection frame, then the organic pigment is conveyed back into the main box body to be reprocessed, and the uncrushed pigment is recycled, so that waste of raw materials is reduced, and the cost benefit of the whole production process is improved; all pigment blocks can be completely crushed and dried, so that the overall performance and efficiency of the organic pigment drying equipment are improved, and the quality and uniformity of final products are improved.
Owner:HUNAN MUYANG NEW MATERIALS CO LTD

SNP (Single Nucleotide Polymorphism) molecular marker related to pig daily gain character on No.17 chromosome and application of SNP molecular marker

The invention discloses a novel SNP (Single Nucleotide Polymorphism) molecular marker related to a pig daily gain character and an application of the SNP molecular marker in breeding. The SNP molecular marker is Agt located at the 15401211bp position of the No.17 chromosome of a pig genome Ensembl Sscrofa11.1 version; g mutation. Through the application of the SNP molecular marker, the daily weight gain performance of large Duroc commercial pigs and Duroc boars thereof can be improved, so that the growth speed is increased, the on-the-market time is shortened, and the economic benefits are improved; and through the SNP molecular marker and the application thereof, the breeding period can be greatly shortened, the breeding cost is saved, and the market competitiveness is improved.
Owner:GUANGXI YANGXIANG AGRI & ANIMAL HUSBANDRY +1

Waste mine pit resource utilization mining method based on sludge solidification

The invention provides a waste mine pit resource utilization mining method based on sludge solidification, and relates to the technical field of mine exploitation and resource recovery, and the method comprises the steps of sludge and water body composition analysis, layered water body extraction, wastewater heavy metal treatment, multi-stage filtration and centrifugal separation, solidified body putting and gradual slow release, multi-stage stirring, and layered exploitation. And waste rock and tailings are backfilled. According to the method, environment-friendly treatment and resource mining of the waste mine pit sludge are effectively achieved, environmental pollution is reduced, the recovery rate of mineral resources is increased, and good economic and social benefits are achieved.
Owner:UNIV OF SCI & TECH BEIJING

Large model self-adaption method under heterogeneous cloud edge end scene

The invention discloses a large model self-adaption method under a heterogeneous cloud edge end scene, the method is based on a cloud server, an edge server and equipment groups, the cloud server distributes a personalized backbone architecture to each equipment group according to the equipment attribute of each group; the edge server starts a first NAS stage according to a local shared data set so as to generate a coarse-grained Header architecture, and the architecture data of the first NAS stage is issued to a device group linked with the first NAS stage; the device group uses local data to refine the Header architecture through a second NAS stage to generate an architecture matrix, and uploads the architecture matrix back to the edge server; the edge server aggregates all matrixes of the group, and customizes and issues a final personalized model architecture for each device; according to the method, the large model can be gradually refined from the coarse granularity to be gradually matched with different devices, and the local model architecture is perfected by utilizing the collaboration among multiple devices.
Owner:TIANJIN UNIV

Hyperbaric oxygen chamber management method and system based on multi-dimensional data

The invention discloses a hyperbaric oxygen chamber management method and system based on multi-dimensional data, and belongs to the technical field of medical health management, and the method comprises the steps: collecting the multi-dimensional data of a hyperbaric oxygen chamber and a patient in real time, providing atmosphere adjustment for selection, and relieving the inadaptability of the patient; analyzing according to the multi-dimensional data, identifying key influence factors of treatment requirements and treatment effects of the patient, and recommending an optimal treatment scheme; performing layered management on the hyperbaric oxygen chamber; setting a deployment period, and analyzing treatment requirements of patients and utilization rates of the hyperbaric oxygen chambers to perform dynamic resource deployment of the hyperbaric oxygen chambers of different levels. According to the system, the inadaptability of a patient is effectively relieved, the treatment compliance and experience are improved, the treatment interruption is reduced, the medical service quality and satisfaction are improved through hierarchical management and resource allocation of the hyperbaric oxygen chamber, the resource allocation is optimized, the waiting time is shortened, and meanwhile, the resource utilization maximization is realized.
Owner:JILIN UNIV FIRST HOSPITAL

Method for preparing multi-scale reinforced carbon aerogel composite material by reducing carbonization shrinkage rate under assistance of expansible graphite

The invention discloses a method for preparing a multi-scale reinforced carbon aerogel composite material by using expandable graphite to assist in reducing carbonization shrinkage rate, which comprises the following steps: by taking phenolic resin as a matrix, blending an expandable graphite reinforcement body to prepare an impregnation liquid, performing vacuum impregnation on PAN-based pre-oxidized fiber felt, curing and drying, and performing high-temperature annealing to prepare the multi-scale reinforced carbon aerogel composite material. Carbon aerogel matrix construction, PAN fiber felt carbonization and in-situ expansion of expandable graphite are realized in one step, so that the heat insulation-bearing integrated carbon aerogel composite material with low shrinkage rate, light weight and high strength is prepared. The technological process is simple and easy to operate, and the obtained composite material has good mechanical strength and high-temperature heat insulation performance and is suitable for large-size preparation and batch production.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Bimetal-based catalyst for synthesizing 2-methoxy-4-methylphenol through vanillin hydrogenation as well as preparation method and application of bimetal-based catalyst

The invention belongs to the technical field of synthesis of 2-methoxy-4-methylphenol, and particularly discloses a bimetallic-based catalyst for synthesizing 2-methoxy-4-methylphenol through vanillin hydrogenation as well as a preparation method and application of the bimetallic-based catalyst. Molybdenum carbide (alpha-MoC) is adopted as a carrier, cobalt and iron are loaded by an impregnation method to obtain the bimetallic-based catalyst, and the bimetallic catalyst can be used for obtaining a 2-methoxy-4-methylphenol product with high added value at high yield by taking vanillin as a raw material under mild reaction conditions. The method is short in synthesis process, low in cost, economical, effective, high in universality, environment-friendly, free of corrosion to equipment and high in product quality. The bimetallic-based catalyst not only has excellent catalytic hydrodeoxygenation performance on vanillin, but also has relatively high selectivity on 2-methoxy-4-methylphenol, and in addition, the bimetallic-based catalyst also has excellent cycle stability, wide market prospect and remarkable economic potential.
Owner:HUNAN KOSEN NEW MATERIAL

Durable composite anti-corrosion coating for concrete structure of road in cold region and preparation method of durable composite anti-corrosion coating

A durable composite anticorrosive coating for a concrete structure of a road in a cold region belongs to the technical field of building materials, and adopts the specific scheme that the composite anticorrosive coating comprises an inner coating and an outer coating, the inner coating is coated on a concrete base surface, the outer coating is coated on the inner coating, and the outer coating is coated on the outer coating. The inner coating is a single-component epoxy resin interface bonding layer, and the outer coating is a single-component MMA resin sand-containing anti-corrosion layer. Through the composite structure design of the epoxy resin interface bonding layer and the MMA resin sand-containing anti-corrosion layer, the advantages of high permeability and strong bonding characteristics of epoxy resin and the advantages of rapid curing, high wear resistance, wide temperature range (still keeping toughness at-40 DEG C) and good weather resistance of MMA resin are fully played, and the efficient and lasting protection effect is achieved.
Owner:CHINA RAILWAY 19TH BUREAU GRP 3RD +1

Tail gas treatment system for methyl propionate synthesis process

The utility model relates to a tail gas treatment system for a methyl propionate synthesis process. The system comprises a reaction kettle (1), a gas-liquid separator (2), an evaporator (3), a rectifying tower (4) and a washing tower (5), wherein a tail gas pipeline of the methyl propionate synthesis process is connected with the reaction kettle (1); the reaction kettle (1) is connected with the gas-liquid separator (2); a gas phase outlet is formed in the top of the gas-liquid separator (2) and is connected with the washing tower (5); a liquid phase material flow outlet is formed in the bottom of the gas-liquid separator (2) and is connected with the evaporator (3); a liquid phase outlet in the bottom of the evaporator (3) is connected with the reaction kettle (1), and a gas phase material flow outlet in the top of the evaporator (3) is connected with the rectifying tower (4). The methyl propionate recycling device can effectively recycle methyl propionate products in recycle gas and purge gas, methanol entering the reaction kettle along with the recycle gas can be used as a reaction raw material, and the methyl propionate recycling device is simple in process, economical, efficient and good in application prospect.
Owner:SOUTHWEST RES & DESIGN INST OF CHEM IND

Circuit structure for realizing pin multiplexing

ActiveCN114520653Bcost-effectiveSolve the problem of multiplexingMultiplexingHemt circuits
The application relates to a circuit structure for realizing circuit pin multiplexing, which comprises an MCU module, a temperature sensing circuit and a functional module circuit, the output end of the temperature sensing circuit is connected with an enable signal port of the MCU module, the output voltage of the temperature sensing circuit is always higher than the threshold voltage of the enable signal, and the MCU module is connected with the functional module circuit. The circuit structure for realizing circuit pin multiplexing adopts the application, aiming at the problem of circuit pin multiplexing, a temperature sensing output curve is designed, analog signal output and digital signal transmission are influenced mutually, the problem of single pin multifunction multiplexing is solved, analog signal output and input signal can share a pin, the problem of pin quantity limitation is solved, signal transmission is effectively solved, and the performance-cost ratio of the circuit is improved.
Owner:CRM ICBG (WUXI) CO LTD

Flexible protection device for treating collapsed cavity at top of tunnel

The utility model discloses a flexible protective device for treating a collapsed cavity at the top of a tunnel, which comprises at least two flexible protective nets which are arranged from top to bottom and connected to the inner wall of the collapsed cavity, and the aperture of the lower part of each flexible protective net is smaller than that of the upper part of each flexible protective net. The protective net is composed of a steel wire rope protective net body and a twisted-pair hexagonal flexible net body, the steel wire rope protective net body is formed by rhombic weaving of Galfan coating steel wire ropes, and the twisted-pair hexagonal flexible net body is formed by weaving of A-grade Galfan coating steel wires, overlaps the edge of the steel wire rope protective net body by 10-20 cm and is tied. The steel wire rope protective net is formed by splicing meshes of different specifications, splicing follows a specific principle, and steel wire rope buckles are used for connection. The device is further provided with anchor rods, spring hooks and other components, and the number and size of the components are determined according to the three-dimensional data of the collapsed cavity. Compared with a traditional protective net, the device can effectively absorb rockfall energy, is good in buffering effect, high in adaptability to different collapse cavities, easy and convenient to install and capable of reducing construction risks and guaranteeing tunnel construction and operation safety.
Owner:THE SECOND ENG CO LTD OF CHINA RAILWAY 14TH CONSTR BUREAU CO LTD +1

Reinforcement cage skeleton structure of ecological T-shaped pile

The utility model discloses a reinforcement cage skeleton structure of an ecological T-shaped pile, which comprises a web plate and a flange plate, the flange plate is fixed on the web plate, the web plate is formed by combining a stirrup body and a main reinforcing steel bar, the stirrup body and the main reinforcing steel bar penetrate along the center of the flange plate, the flange plate is formed by combining a transverse reinforcing steel bar and a longitudinal reinforcing steel bar, and the transverse reinforcing steel bar and the longitudinal reinforcing steel bar are fixed on the web plate. An end plate is installed at the upper end of the web plate and is of a T-shaped structure, and S-shaped splicing heads are arranged at the two transverse ends of the T-shaped structure. According to the reinforcement cage skeleton structure of the ecological T-shaped pile, the rectangular main keels and the reinforcement meshes form a half-T-shaped structure, and compared with a traditional full-T-shaped structure, the performance of the pile body can be guaranteed, meanwhile, materials are greatly saved, the production cost is reduced, and the cost performance is improved; due to the fact that the rectangular main keel is large in main rib distance and reasonable and effective in main rib arrangement structure, after the rectangular main keel and concrete are coagulated, a small amount of reinforcing steel bars are formed, and the large mechanical property is achieved, and the whole reinforcing steel bars are firmer.
Owner:SHANGHAI LONGYING ECOLOGICAL TECH CO LTD

Application of lactobacillus plantarum p101 in adsorption and removal of nano-plastic in environmental water

This invention belongs to the field of microbial technology and discloses the application of *Lactobacillus plantarum* P101 in the adsorption and removal of nanoplastics in environmental water. The *Lactobacillus plantarum* P101 strain is deposited at the China Center for Type Culture Collection (CCTCC), accession number CCTCC NO: M 2021108, deposit date January 19, 2021. This strain exhibits an adsorption rate of ≥85% for nanoplastics with a particle size of 100-1000 nm. The strain was isolated from fermented sauerkraut. The *Lactobacillus plantarum* P101 provided by this invention demonstrates significant adsorption capacity for nanoplastics in both live and inactivated states, which is of great significance for the environmental remediation of nanoplastics.
Owner:NANCHANG UNIV

A water replenishment device for arid desert ecosystems based on micro-water vapor self-circulation

This utility model discloses a water replenishment device for arid desert ecosystems based on micro-moisture self-circulation in the field of soil replenishment equipment technology. It includes a water replenishment pipe with a seepage port at its bottom, buried within the desert soil. A rain collection tray and an air supply mechanism are connected to both ends of the water replenishment pipe, respectively, both located above the desert soil. A humidity sensor for detecting soil moisture is installed on the water replenishment pipe, and a humidity sensor for detecting air humidity is installed on the air supply mechanism. This utility model delivers water to the water replenishment pipe deep in the soil through the rain collection tray and delivers micro-moisture into the water replenishment pipe through the air supply mechanism. The warm air carrying the micro-moisture condenses in the water replenishment pipe, and the condensed water seeps into the soil through the seepage port, replenishing the desert soil's moisture and improving the desert ecological environment.
Owner:ORDOS INTERNATIONAL DESERTIFICATION CONTROL TECHNOLOGY INNOVATION CENTER +1

Sparse sensor optimization layout method for battery thermal safety monitoring

The invention discloses a sparse sensor optimization layout method for battery thermal safety monitoring. The method comprises the following steps: constructing a full-working-condition temperature field data set through high-fidelity simulation data; defining a multi-task loss function fusing the overall reconstruction error, the hotspot monitoring error and the spatial dispersion; and with minimization of the loss function as a target, an optimal sensor distribution point is automatically searched by adopting an optimization algorithm. According to the method, the problems of sensing blind areas and early warning lag existing in empirical layout are solved, high-precision temperature field reconstruction and early thermal safety early warning can be achieved with the minimum number of sensors, the reliability is high, the cost is low, and the method is suitable for thermal management design of various lithium ion battery systems.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

enclosure sealing machine, sealing head and can equipped with a cover enclosure

This invention relates to a sealing machine and related improved sealing heads, as well as cans equipped with corresponding covering seals. The sealing head applies a covering seal (1) to the surface (3s) of a can (3) to be sealed, the can including an edge (3b) and an opening (3a) covered by a pull ring (31) for dispensing the contents of the same can. The sealing head (10) includes: a plurality of circular sealing sectors (20), an elastic device (30), and a heating device (12). A feature of this invention is the inclusion of elastic devices (31-36) with different stiffnesses when connected to the circular sealing sectors; that is, elastic devices with higher stiffness when connected to circular sectors (21-23) positioned corresponding to a distal point (D) of the edge (3i) adjacent to the opening of the can, and elastic devices with lower stiffness when connected to circular sectors (24-26) positioned at a proximal point (P) of the can edge adjacent to the can opening.
Owner:ECOCAPS SRL

A locking slide switch

This utility model discloses a lockable sliding switch, comprising: an upper shell and a lower shell, the upper shell and the lower shell being connected to form a closed outer shell structure; a rotary lock seat, rotatably disposed within the upper shell and the lower shell; and a fixed lock seat, fixedly disposed within the upper shell and the lower shell, forming a relative rotational relationship with the rotary lock seat; the rotary lock seat is provided with a first locking plate, and the fixed lock seat is provided with a second locking plate; when the rotary lock seat is rotated to the locked position, the first locking plate and the second locking plate abut face to face, blocking the rotation of the rotary lock seat; the rotary lock seat is provided with a lock hole, and when the rotary lock seat is in the locked position, an external lock can be inserted into the lock hole and locked. This lockable sliding switch has the characteristics of double locking to prevent misoperation, stable gear switching, and reliable contact.
Owner:ZHEJIANG YADE PNEUMATIC CO LTD

Multi-dimensional intelligent garment pressure test dress form apparatus and system, and multi-dimensional intelligent garment pressure test method

A multi-dimensional intelligent garment pressure test dress form apparatus and system, and a multi-dimensional intelligent garment pressure test method. The intelligent garment pressure test dress form apparatus comprises an apparatus main body and a human body model (2), wherein the human body model (2) is circumferentially segmented into a plurality of model units (21) around an axis; and the apparatus main body comprises a plurality of movable members (6) and a control base (1). Each movable member (6) is circumferentially distributed on the control base (1) around the center of a circle, and each movable member (6) is movably arranged in a straight line where a connecting line between the center of the movable member and the center of a circle is located; the model units (21) are respectively mounted on the movable members (6) on a one-to-one basis; and the control base (1) is used for driving the movable members (6) to move together or separately, so that multiple dimensions of the size and shape of the human body module (2) can be adjusted and changed. Therefore, when applied to a garment pressure test, the dress form apparatus can implement an intelligent, dynamic and shape-adjustable garment pressure test which includes a plurality of human body sizes, without frequently changing the human body module (2), thereby realizing economic and effective garment functionality measurement.
Owner:THE HONG KONG POLYTECHNIC UNIV +1

A multi-channel dimmable light-off non-afterglow BUCK control circuit

A multi-channel dimmable light-off non-afterglow BUCK control circuit comprises a first output end, wherein the positive and negative electrodes of the first output end are respectively connected to the two endpoints of one end of a conduction end of a dual-channel relay K1, the two endpoints of the other end of the conduction end of the dual-channel relay K1 are commonly connected and connected to the drain of a MOS tube Q1, the source of the MOS tube Q1 is grounded, and the gate is connected to the control end of a main control unit U1; further comprising an optical coupler U3, wherein the positive electrode of the light-emitting end is connected to a control signal SW1 through a resistor R15, the negative electrode is grounded, the collector is connected to a voltage VDD, the emitter is grounded, the emitter is also connected to the base of a triode Q3, the collector of the triode Q3 is connected to the voltage VDD, the emitter outputs a voltage VCC1 and is connected to one end of a diode D3, the other end of the diode D3 outputs a first relay control signal and a signal RL1 through a resistor R13; further comprising a second BUCK circuit, wherein the BUCK circuit is connected to the signal RL1 through a diode D5.
Owner:GUANGDONG HUAHAODE ELECTRONIC TECHNOLOGY CO LTD

New energy power station planning method and system

The invention provides a new energy power station planning method and system, and the method comprises the steps: obtaining the static characteristics of a plurality of candidate points, the static characteristics including the seismic activity frequency, the altitude, the gradient and the underground water burial depth; calculating a static abnormal score of each candidate point based on the static features of the candidate points, and performing a first round of screening on all the candidate points according to the static abnormal scores to obtain remaining candidate points; obtaining dynamic characteristics of each residual candidate point, wherein the dynamic characteristics comprise wind speed, sunlight intensity, environment temperature, environment humidity and precipitation; and performing a second round of screening on all the remaining candidate points based on the dynamic feature of each remaining candidate point and the static abnormal score of each candidate point to obtain a final point location. According to the method, multi-dimensional quantitative evaluation of new energy power station site selection is realized through a static and dynamic dual screening and clustering optimization mechanism, and site selection scientificity and engineering reliability are remarkably improved.
Owner:STATE GRID LIAONING ECONOMIC TECHN INST

Functional fabric preparation method and finishing equipment

The invention discloses a functional fabric preparation method and finishing equipment for realizing fabric functionalization, and relates to the technical field of textile fabric functionalization and finishing equipment. According to the preparation method of the functional fabric, the functional finishing agent and fabric fibers can be triggered to be subjected to chemical grafting reaction through ultraviolet irradiation and / or heating, and the textile fabric is subjected to one-time continuous multifunctional finishing; the finishing equipment comprises two functional modules, an ultraviolet light initiation module and a thermal initiation module, can support different finishing processes of fabrics, realizes chemical covalent bond grafting reactions of different principles, has strong production operability and high flexibility, and has ideal popularization and application values in the fields of textile fabric finishing and engineering.
Owner:SHENZHEN UNIV

Consumable detection device for 3D printing extruder

The utility model discloses a consumable detection device for a 3D printing extruder. The consumable detection device comprises a printing head shell, a wire extruding channel is vertically formed in the inner side of the printing head shell in a penetrating mode, and a detection channel, an adjusting groove and a square groove are formed in the inner side of the printing head shell. The inner wall of the detection channel is fixedly connected with a first fixing shaft and a clamping block. Through an innovative mechanical conduction structure, when the consumables are inserted from the top, the balls are pushed and eject the deflector rod, so that the distance between the magnet block on the deflector rod and the Hall sensor is changed, the entry state of the consumables is detected in real time, and meanwhile, the detection accuracy is improved. The Hall sensor can accurately sense the actual diameter of the consumables according to the difference of the shifting distance of the shifting rod caused by small change of the diameters of the consumables, real-time accurate control over the extrusion flow is achieved in combination with the driving motor and the transmission gear set, and the problem that in the prior art, the extrusion amount is unstable due to uneven diameters of the consumables is solved; and the consistency of printing quality is obviously improved.
Owner:WUHU AISANDI ELECTRONICS TECH CO LTD

A laboratory ultrapure water and acid-base water preparation system and device

ActiveCN224646820UMeet the needs of useReduce laying costs
The utility model discloses a laboratory is with ultrapure water and acid -base water system of making water, include: pretreatment module, the input of pretreatment module connects water inlet of tap water, reverse osmosis pure module, reverse osmosis pure module includes high pressure pump, reverse osmosis device and pure water tank, the input of high pressure pump is connected with the output pipeline of pretreatment module, the output of high pressure pump is connected with the input of reverse osmosis device, and the output pipeline of reverse osmosis device is connected with the input of pure water tank, multi -water quality preparation module, multi -water quality preparation module includes and is connected with pure water tank's acid -base water preparation unit, ultrapure water preparation unit and pure water direct -feed unit who sets up in parallel. The utility model discloses a laboratory is with ultrapure water and acid -base water making water device. The water system that the present application provides will prepare the function of four water qualities of pure water, ultrapure water, acid water, alkali water and integrate in one, discard the mode of the dispersed setting of traditional split type equipment, and the overall land area of equipment is greatly reduced, especially adapts the laboratory scene of space nervous.
Owner:CHONGQING BOCHUANG WATER TREATMENT EQUIP CO LTD

A split brake and drive mechanism for bicycle assembly

ActiveCN224727131Ureduce in quantitySimplify structural complexity
The utility model discloses a separate brake and transmission mechanism for bicycle assembly, its structure includes the frame, the frame front end integral fixed link frame front fork, rear end integral fixed link frame rear fork, the one end installation front brake integrated assembly of frame front fork far from the frame, the one end installation rear brake integrated assembly of frame rear fork far from the frame, and the front brake integrated assembly includes the front disc brake mounting seat and the cylinder axle installation auxiliary ware of symmetrical setting in the inside both sides of frame front fork, and the transmission of both is installed with front hub, and the rear brake integrated assembly includes the transmission tower base and rear disc brake mounting seat of symmetrical setting in the inside both sides of frame rear fork, and the transmission of both is installed with rear hub, and the transmission tower base outside sets up the clamping freewheel, and this structure realizes the separate layout of brake and transmission, simplifies the overall structure and is convenient for separate dismounting maintenance, guarantees the braking and transmission cooperation of front wheel and rear wheel, improves the braking response speed and power transmission efficiency.
Owner:SHANGHAI CHUANGSHEN WORKSHOP CHUANGMENG HIGH-TECH CO LTD

Array buoy and method for wave directional spectrum data collection

ActiveCN119284044Bavoid confictManage communications effectivelyWaterborne vesselsMeasuring open water movement
The present invention belongs to the technical field of buoy structure, and discloses an array buoy and method for wave directional spectrum data collection. The buoy body includes lugs installed on different directions of the outer shell; the lugs are connected to the swing arm through a rotating joint; a sub-buoy is installed at the outer end of the swing arm; a carbon-based flexible sensor is installed inside the rotating joint; a plurality of wires are arranged inside the flat slot to connect the carbon-based flexible sensor with the main control system installed in the buoy body; a sub-control system is installed in the sub-buoy, and the sub-control system exchanges data with the main control system through communication signals. The array buoy of the present invention is simple to deploy, and the cost is greatly reduced compared with the traditional buoy array for obtaining wave spectrum data. The sub-buoy and the main buoy of the array buoy can be easily integrated into one system, so as to achieve better consistency.
Owner:OCEAN UNIV OF CHINA

LVDT analog simulation circuit and signal simulation method thereof

PendingCN121956617AEasily implement static point testingImprove test coverageSimulator controlAviationCommunication interface
The invention belongs to the technical field of avionics testing and signal simulation, and discloses an LVDT analog simulation circuit and a signal simulation method thereof, and the LVDT analog simulation circuit comprises a main control module, a communication interface module, an excitation signal processing module and a sensor signal simulation output module. The main control module receives an external displacement setting instruction through the communication interface; the excitation signal processing module comprises a DAC unit and an excitation conditioning unit and is used for generating amplitude control voltage and conditioning an external LVDT excitation signal; the sensor signal simulation output module serves as a core and comprises a difference value control unit, a sum value control unit, a summation unit and a differencing unit, a conditioned excitation signal and amplitude control voltage are synthesized through an analog multiplier and an operational amplifier circuit, and finally three-phase differential signals (a high end, a low end and a center tap) simulating a real LVDT sensor are output. A mechanical LVDT is replaced by a full-electronic mode, high-precision, programmable and flexible simulation of displacement signals is achieved, the device is particularly suitable for occasions needing high-reliability LVDT interface testing and verification such as an aviation flight control system, and the device has the advantages of being low in cost, high in flexibility and easy to integrate automatic testing.
Owner:XIAN E FLY AVIONICS TECH

An Optimization Design Method for Sandbag Revetment Structures on Eroding Beaches

This invention belongs to the field of water conservancy and marine engineering technology, and specifically relates to an optimized design method for sandbag revetment protection structures on erosive beaches. The method includes: basic data collection, material selection and determination, optimized design of individual sandbag dimensions, and determination of the structural assembly and installation method. To better utilize sandbag protection structures for the protection of erosive sandy beaches, this application, through theoretical derivation, optimizes the stability design formula for beach sandbag structures, improves the design process for beach sandbag revetment structures, and enhances the applicability of the protection structure.
Owner:CHINA COMM CONSTR FIRST HARBOR CONSULTANTS +1