43results about How to "Strong application" patented technology

The present invention provides a compact current sensor capable of measuring a current to be detected with high precision. A current sensor includes: a first magnetoresistive element including a plurality of element patterns which extend in an X axis direction at a first level, are disposed so as to be adjacent to each other in a Y axis direction orthogonal to the X axis direction, and are connected in parallel with each other; and a thin film coil which includes a plurality of winding body portions extending in the X axis direction in correspondence with the element patterns and winds at a second level different from the first level, and applies a current magnetic field to each of the element patterns when a current to be detected is supplied. Therefore, the absolute value of the resistance change amount in the magnetoresistive element increases. While realizing a compact configuration, the current to be detected, flowing in the thin film coil can be measured with high precision.

The present invention provides a current sensor capable of sensing a current to be detected with high precision while realizing a compact configuration. The current sensor includes a first MR element including element patterns disposed at a first level, a second MR element including element patterns disposed at a second level, and a thin film coil which winds at a third level provided between the first and second levels while including winding body portions extending in an X axis direction in correspondence with the element patterns of the first and second MR elements, and which applies a current magnetic field to each of the element patterns when a current to be detected is supplied. Therefore, by using both of the first and second MR elements, the current magnetic field can be detected with high sensitivity and high precision.

A high-speed, three-dimensional, gamma-ray imaging method and system as well as a detector and array of such detectors for use therein are provided which characterize radioactivity distributions in nuclear and radioactive waste and materials facilities by superimposing radiation images on a view of the environment using see-through display screens or shields to provide a stereoscopic view of the radiation. The method and system provide real-time visual feedback about the locations and relative strengths of radioactive sources. The method and system dynamically provide continuous updates to the displayed image illustrating changes, such as source movement. A pair of spaced gamma-ray cameras of a detector subsystem function like “gamma eyes”. A pair of CCD cameras may be coupled to the detector subsystem to obtain information about the physical architecture of the environment. A motion tracking subsystem is used to generate information on the user's position and head orientation to determine what a user “sees”. The invention exploits the human brain's ability to naturally reconstruct a 3D, stereoscopic image from 2D images generated by two “imagers” separated by a known angle(s) without the need for 3D mathematical image reconstruction. The method and system are not only tools for minimizing human exposure to radiation thus assisting in ALARA (As Low As Reasonably Achievable) planning, but also are helpful for identifying contamination in, for example, laboratory or industrial settings. Other optically-invisible radiation such as infrared radiation caused by smoldering fires may also be imaged. Detectors are manufactured or configured in curvilinear geometries (such as hemispheres, spheres, circles, arcs, or other arrangements) to enable sampling of the ionizing radiation field for determination of positional activity (absolute or relative amounts of ionizing radiation) or spectroscopy (energy distributions of photons). More than one detector system may be used to obtain three-dimensional information. The detector systems are specifically suitable for direct visualization of radiation fields.

The present invention is process of preparing 3-hydroxy propionate and 1, 3-propylene glycol with epoxide as material. The present invention prepares 3-hydroxy propionate with epoxide, CO and alcohol under the action of cobalt catalyst and co-catalyst, and prepares 1, 3-propylene glycol under the action of 3-hydroxy propionate hydrogenating catalyst. The present invention has the advantages of simple reaction apparatus, simple operation, mild reaction condition, high catalyst activity, no environmental pollution, low production cost, etc.

An acrylic urethane (meth)acrylate oligomer is provided, which has an acrylic urethane backbone comprising a reaction product of an acrylic polyol and a diisocyanate, which backbone is capped with a hydroxy(meth)acrylate. The acrylic urethane (meth)acrylate oligomer has residues in the following order: hydroxy(meth)acrylate−(diisocyanate−acrylic polyol)n−diisocyanate−hydroxy(meth)acrylate where n is 1 to 10. The oligomer is useful in ink compositions.

The invention discloses a driver of a light emitting diode (LED) light source, comprising a main circuit and a backup circuit. A loop of a first rectifier and filter circuit of the main circuit is also connected with a field-effect tube in series, and the field-effect tube is connected with an output circuit. The field-effect tube is used as an electronic switch to finish the switching between the main circuit and the backup circuit, and prevents a rectifier diode in the first rectifier and filter circuit from influencing the backup circuit after short circuit. In the invention, the backup circuit also comprises a programmable logic controller (PLC) multifunctional control part. The invention has the technical effects of improving the reliability of the system, reducing the cost, intelligently adjusting the output power, and the like.

A discharge electrode using carbon fibers, nanofibers and / or nanotubes to generate the corona discharge. The invention contemplates carbon fiber electrodes with or without a polymer matrix to form a composite, and a supporting configuration in which the fibers are wrapped helically around a supporting rod that extends along the length of the electrode. Another supporting configuration includes the fibers stretched across the gas flow path. Yet another supporting configuration includes mounting the fibers along the length of the support rod substantially parallel to the rod.

The invention relates to the technical field of electrorheological fluid materials, in particular to high-conductivity electrorheological fluid and a preparing method thereof.Liquid metal and electrorheological fluid synthesized in situ serve as raw materials and are uniformly mixed to prepare the high-conductivity electrorheological fluid, good fluidity of the liquid metal is used for uniformly dispersing liquid metal particles into the electrorheological fluid synthesized in situ, and therefore conductivity of the electrorheological fluid is improved; as the liquid metal in the electrorheological fluid synthesized in situ is not effectively communicated, the prepared high-conductivity electrorheological fluid still keeps the insulation characteristic.The preparing method of the high-conductivity electrorheological fluid is simple, the materials are wide in source and easy to obtain, and applicability is high.

Disclosed herein is a nano-powder extraction apparatus using the rotation of a hollow impeller, which is configured to extract nano-powder according to particle size thereof by effectively dissolving the nano-powder contained in plasma gas into a surfactant solution, and to prevent the aggregation of nano-powder as the nano-powder is absorbed in and collected by a surfactant of solution, thereby enabling the application of strongly reactive materials.

The invention discloses an enhanced relay protection testing system which comprises a relay protection software platform and a relay protection testing device. The relay protection software platform is used for selecting a plurality of testing projects and inputting setting values of parameters of selected testing projects by a user. One end of the relay protection testing device is connected with the relay protection software platform, the other end is connected with a relay protection device to be measured and used for outputting corresponding three-phase current and voltage to the relay protection device to be measured of each selected testing project according to the plurality of testing projects and the setting values of the parameters of the selected testing projects. The relay protection device to be measured is used for feeding back a testing result to a relay protection software platform each time the three-phase current and voltage are received. The relay protection software platform is further used for calculating testing errors according to the fed back testing result and generating a test report after the testing is finished. The system is high in testing efficiency.

The invention relates to a technical method for separating abnormal subdomain fault in chemical production, which is a novel fault separating method and is realized by using statistical analysis theory. The method comprises the following steps: extracting a principal element from data information acquired by a process; classifying data into information related with the principal element and information in weak relation with the principal element according to the correlation of a variable and the principal element; establishing a statistical process control limit for diagnosis of the fault respectively according to the two classes of data; determining a domain of normal data as a normal subdomain and a domain of abnormal data as an abnormal subdomain; and iterating the processes in the abnormal subdomain until the fault is converged to be separated. The method classifies the process data according to the correlation of the process data and a principal element array, can reflect characteristics and presentation of the fault information better, and improve relative accuracy and reliability of fault separation by statistical analysis. The method has the advantages of advanced technique, theoretical principle existence, and strong actual application and operability.

The invention discloses a high-concentration erbium ion doped tellurium tungstate glass capable of emitting light at mid-infrared 2.7 microns. The glass comprises the following components by molar percent: 58-70% of TeO2, 15-25% of WO3, 0-15% of La2O3, 0-15% of LaF3 and 2-4% of Er2O3. The glass is prepared by adopting an electric furnace melting method of a corundum crucible and a silicon carbide rod. The glass is high in doping concentration of erbium ion, high in infrared transmittance near to the mid-infrared 2.7 microns and good in physicochemical properties; and the stability parameter delta T is not less than 180 DEG C. Strong mid-infrared 2.7 microns fluorescence is obtained under pumping of a laser diode with a wavelength of 980 nm; and the glass is suitable for preparation and application of erbium ion doped special glass and optical fiber materials capable of emitting light at mid-infrared 2.7 microns.

Synthesis of aromatic hydrocarbons from synthesis gas in a fixed bed or a moving bed reactor loaded with a composite catalyst comprising Catalyst Component A and Catalyst Component B mixed via a mechanical mixing mode, wherein the active ingredient of the Catalyst Component A is active metal oxides; and the Catalyst Component B is one or both of ZSM-5 zeolite and metal modified ZSM-5; the pressure of the synthesis gas is 0.1-6 MPa; the reaction temperature is 300-600° C.; and the space velocity is 500-8000 h−1. The reaction process has a high product yield and selectivity, with the selectivity of aromatics reaching 50-85%, while the selectivity of the methane byproduct is less than 15%.

The present invention provides a compact current sensor capable of measuring a current to be detected with high precision. A current sensor includes: a first magnetoresistive element including a plurality of element patterns which extend in an X axis direction at a first level, are disposed so as to be adjacent to each other in a Y axis direction orthogonal to the X axis direction, and are connected in parallel with each other; and a thin film coil which includes a plurality of winding body portions extending in the X axis direction in correspondence with the element patterns and winds at a second level different from the first level, and applies a current magnetic field to each of the element patterns when a current to be detected is supplied. Therefore, the absolute value of the resistance change amount in the magnetoresistive element increases. While realizing a compact configuration, the current to be detected, flowing in the thin film coil can be measured with high precision.

The present invention provides a current sensor capable of sensing a current to be detected with high precision while realizing a compact configuration. The current sensor includes a first MR element including element patterns disposed at a first level, a second MR element including element patterns disposed at a second level, and a thin film coil which winds at a third level provided between the first and second levels while including winding body portions extending in an X axis direction in correspondence with the element patterns of the first and second MR elements, and which applies a current magnetic field to each of the element patterns when a current to be detected is supplied. Therefore, by using both of the first and second MR elements, the current magnetic field can be detected with high sensitivity and high precision.

The invention discloses a path edge identification method and system for a metal structure climbing robot of a crane, and the method comprises the steps: firstly carrying out the preprocessing of a path image collected by a robot CMOS camera, and obtaining a path grey-scale map; adopting a line segment segmentation detection algorithm to detect the path grey-scale map, all straight line segments meeting constraint rules in the path image are detected, and a straight line segment detection image is obtained; then, performing feature extraction on all straight line segments contained in the straight line segment detection image, performing clustering operation by adopting an affinity propagation clustering algorithm based on the extracted features, and screening out straight line segments forming a path edge; and finally, for all the screened straight line segments forming the path edge, extracting endpoint coordinates as fitting points, fitting by adopting a least square method, and taking the straight line segment obtained by fitting as a finally identified path edge line. The technical effect of improving the accuracy of straight line segment clustering and the accuracy of edge path recognition is achieved.

The invention discloses a carboxymethyl chitosan-nano magnesium oxide composite membrane material and a preparation method thereof. The preparation method comprises the following steps: dissolving carboxymethyl chitosan powder in deionized water to obtain a carboxymethyl chitosan solution; adding glycerol into the carboxymethyl chitosan solution, and uniformly stirring and mixing the carboxymethylchitosan solution to obtain a mixed solution; slowly adding nano magnesium oxide powder into the mixed solution to obtain a carboxymethyl chitosan-magnesium oxide premixed solution; adding the stirred premixed solution into an ultrasonic crusher, and ultrasonically mixing the components uniformly until nano magnesium oxide is uniformly dispersed; and drying the mixture in a drying oven to obtainthe composite membrane. The carboxymethyl chitosan-nano magnesium oxide composite film material has the beneficial effects that the preparation efficiency can be greatly improved by a pre-stirring and ultrasonic method, the decay of food is inhibited by the relatively strong antibacterial property, and the shelf life of the food is prolonged, so that the carboxymethyl chitosan-nano magnesium oxide composite film material has a wide application prospect in the field of food fresh keeping and corrosion prevention.

The invention provides an imaging and electrical parameter testing system of a transmission-type unit detector. The system comprises a shielding case and an upper computer; a spatial light source is arranged in the shielding case, an objective table is arranged under the spatial light source, a rotating platform is arranged under the objective table and provided with a camera lens, a three-dimensional scanning platform is arranged under the rotating platform and connected with a detector, and the detector is connected with a collimator. According to the system, focusing operation on the detector is completed in the Z-axis direction by adopting a three-dimensional scanning array, the imaging scanning process on a two-dimensional plane is completed through an X axis and a Y axis, control is easy, the cost is low, and the real-time collimation work on the focusing position can be completed; meanwhile, unit detector parameter testing including testing on detector property parameters such as the dark currents, the responsivity and the breakdown voltage can be completed through a simple power-adjustable transmission-type optical path.

The invention discloses a preparation method for oat beta-glucan extract. The preparation method includes the steps of 1), washing and filtering; 2), enzymolysis and filtering; 3), freezing and thawing and filtering; 4), wine sinking and filtering; 5), supercritical CO2 removal; 6), redissolving. The preparation method is simple in process, low in cost, convenient in application, stable in product and free of pesticide residue.

Disclosed herein is a nano-powder extraction apparatus using the rotation of a hollow impeller, which is configured to extract nano-powder according to particle size thereof by effectively dissolving the nano-powder contained in plasma gas into a surfactant solution, and to prevent the aggregation of nano-powder as the nano-powder is absorbed in and collected by a surfactant of solution, thereby enabling the application of strongly reactive materials.

The invention discloses a method and system for co-processing waste incineration fly ash through a rotary hearth furnace, and the system for co-processing waste incineration fly ash through the rotary hearth furnace comprises a material mixing machine, a ball press machine, a drying machine, the rotary hearth furnace, a waste heat boiler and a dust removal device.The method comprises the steps that after ferrous metallurgy dust and mud, waste incineration fly ash, a binder and water are evenly mixed, the mixture is heated to the room temperature; the method comprises the following steps: firstly, preparing a metal pellet, pressing into pellets to obtain carbon-containing pellets, then drying the carbon-containing pellets, feeding the carbon-containing pellets into a rotary hearth furnace, carrying out reduction roasting to obtain metallized pellets and zinc-containing flue gas, and then carrying out heat exchange and dust removal on the zinc-containing flue gas to obtain zinc-containing dust. According to the method, the waste incineration fly ash and the ferrous metallurgy dust sludge are cooperatively treated in the rotary hearth furnace, the dezincification rate and the metallization rate of the ferrous metallurgy dust sludge are increased through the waste fly ash, the using amount of a binder is saved, the cost is reduced, meanwhile, the content of dioxin in the waste incineration fly ash is reduced, and the environment friendliness is achieved. And harmless treatment and resource utilization of the waste incineration fly ash and the ferrous metallurgy dust sludge are achieved.

The invention discloses a hydraulic anti-loosening bolt and a hydraulic anti-loosening bolt and nut fastening device. A hydraulic anti-loosening column system is arranged in a nut of the bolt, an adjustable pin shaft is arranged on the hydraulic anti-loosening column system, and the purpose that an anti-loosening mechanism of the bolt fixes the bolt to prevent loosening of the bolt is achieved bycontrolling the pin shaft to pop up and contract. The nut and the hydraulic anti-loosening column system are controlled simultaneously through a specially-designed tightening device, and then loosening and tightening action of the bolt is achieved. The hydraulic anti-loosening bolt and nut fastening device is simple in structure, easy to operate, good in anti-loosening effect and capable of beingreused.

The invention discloses a multi-angle adjusted and locked multi-link connection device in mechanical equipment. The lower ends of links are provided with ball heads, the upper ends are all provided with cylindrical bosses, the center of the surface of the cylindrical boss of the first link is provided with a first spherical groove with an inner diameter size equal to the size of the outer diameterof a second ball head of the second link, the upper surfaces of the cylindrical bosses are coaxially and fixedly connected to ring-shaped link covers, central holes of the link covers are coaxially and tightly provided with ring-shaped bearings in a sleeve mode, the bearings each are composed of two identical half-ring bodies in a radial direction folding manner, the middle of a bearing shell ofeach half-ring body is provided with a semicircular arc-shaped groove in a semicircular ring shape, the interior of each semicircular arc-shaped groove is internally provided with a permanent magnet,a bearing spring and an electromagnet, the two permanent magnets are both radially magnetized and are opposite in magnetizing direction, during an initial state, the two permanent magnets attract andlock the second ball head, when an angle of the links is adjusted, coils of the electromagnets are energized, the two permanent magnets loosen the second ball head, multi-angle adjustment of a multi-link structure is achieved, and disassembly is convenient.

The invention provides a positioning device capable of performing grouting connection of reinforcing steel bars and metal corrugated pipes in a batch manner. The positioning device comprises a corrugated-pipe positioning system and a reinforcing-steel-bar positioning system and is characterized in that the corrugated-pipe positioning system comprises a corrugated-pipe positioning seat, a pipe-bodypositioning plate and a plurality of screws; the corrugated-pipe positioning seat is provided with a plurality of pipe-end positioning blind holes, and the pipe-body positioning plate is provided with pipe-body positioning holes corresponding to the pipe-end positioning blind holes; the position of the pipe-body positioning plate can be locked by fasteners at the screws; when corrugated-pipe positioning is performed, the pipe-body positioning plate is located at the screws and the distance between the pipe-body positioning plate and the upper end face of a pipe-orifice positioning seat is smaller than the length of corrugated pipes; the reinforcing-steel-bar positioning system comprises more than one reinforcing-steel-bar positioning plate, the screws penetrate the reinforcing-steel-bar positioning plates, and each reinforcing-steel-bar positioning plate is provided with reinforcing-steel-bar positioning holes corresponding to the pipe-body positioning holes; the distance between thelowermost reinforcing-steel-bar positioning plate and the pipe-body positioning plate is larger than the length of the corrugated pipes. The positioning device is suitable for lab operation, convenient in construction and reusable.

The invention discloses a path edge recognition method and system for a crane metal structure climbing robot. First, the path image collected by the robot CMOS camera is preprocessed to obtain the path grayscale image; The path grayscale image is detected, and all straight line segments satisfying the constraint rules in the path image are detected, and the straight line segment detection image is obtained; then, feature extraction is performed on the straight line segment detection image including all straight line segments, and based on the extracted features, the nearest neighbor propagation clustering is used The algorithm performs a clustering operation and screens out the straight line segments that constitute the edge of the path; finally, for all the selected straight line segments that constitute the edge of the path, the coordinates of the endpoints are extracted as the fitting points, and the least square method is used for fitting, and the fitted straight line The segment is used as the final identified path edge line. The invention realizes the technical effect of improving the accuracy of straight line segment clustering and edge path identification.

The invention relates to a method for improving the color and flavor of dry red wine. The method utilizes nano bubbles to stably regulate the aerobic environment of the dry red wine during storage, so as to achieve the purpose of improving the color and flavor of the dry red wine. The dry red wine obtained after being processed according to the method is stable ruby ​​red, soft and moist in the mouth, rich in aroma, outstanding in fruit, moderate in acidity and delicate and balanced in taste. The sensory evaluation of wine treated with nanobubbles was better than that of untreated wine, and its advantages expanded with the prolongation of storage time.

A discharge electrode using carbon fibers, nanofibers and / or nanotubes to generate the corona discharge. The invention contemplates conductive fiber, such as carbon strands with or without a polymer matrix to form a composite, and a supporting configuration in which the strand is extended along or wrapped helically around a supporting rod that extends along the length of the electrode. A mechanical bias is applied to each strand to maintain tension on the strand. Preferably this includes coil springs extending between bushings mounted on the rod and moveable hemispherical supports slidably mounted on the rod that seat against the strand.

The invention discloses a technical method for extracting and matching mixed fault information in chemical production, and relates to the chemical technology. The technical method for extracting and matching diagnosis mixed fault information comprises the following steps: using measured variable, control variable and operating variable in a technical process as mixed resources of process information, applying and counting analysis of related information to extract principal element information so that a parameter of the fault information in each node of a closed loop of a control system is dominant and the characteristic of the fault is magnified; and on this basis, applying regular dynamic time to carry out characteristic match of the fault information, and carrying out mode match of the related information based on the optimal path of Euclidean distance. The method uses the measured variable, the control variable and the operating variable as the mixed information source of a principal element, so that the information resources are more comprehensive and accurate, the capacities of the normal information and the fault information are increased, and performances of control and diagnosis are improved. The method has the advantages of advanced technique, theoretical principle existence, and strong actual application and operability.