230 results about "Primary level" patented technology

The invention provides a vehicle working condition online monitoring system for a rail transit, and belongs to the technical field of rail transits. The monitoring system provided by the invention comprises a vehicle working condition data acquisition module, a composite sensor, a vehicle-mounted working condition information preprocessor, a driver information display system, a regional information processor, a ground center information processor and a network communication transmission system; and the fault region of a vehicle can be divided into a primary level, a regional level and a central level, and the state data can be sent to the ground through the network communication transmission system, so that the fault of the primary level is analyzed and processed through the correspondingvehicle-mounted working condition information preprocessor, the fault of the regional level is analyzed and processed through the regional information processor of the corresponding ground, and the fault of the central level is analyzed and processed through the ground center information processor of the corresponding ground. Therefore, different fault types can be timely and effectively solved at the most proper places, networking and intelligence of the monitoring system are realized, and running reliability and safety of the rail transit can be finally improved.

The invention relates to a protection method suitable for the high and steep side slope ecological restoration technology. The protection method is characterized by comprising the following steps that, 1, the slope surface is tidied, and a side slope is measured; 2, an anchor rod is driven into a high and steep side slope and grouting is conducted for support; 3, vertical and horizontal support lines are installed, and a grille net is laid and hung on the slope surface; 4, a steel wire rope net is laid and hung on the grille net; 5, an angle steel bracket is installed, in addition, the angle steel is fixedly welded with the anchor rod; 6, a gabion mesh and a nutrient geotextile are laid in a layered mode; 7, primary level vegetation concrete is seeding-sprayed; 8, a nutrient substrate is seeding-sprayed on the primary level vegetation concrete; 9, top-level vegetation concrete is seeding-sprayed on the nutrient substrate; 10, an independent planting groove is formed in the top-level vegetation concrete to plant seedlings; and 11, maintenance and management are conducted. According to the protection method for the high and steep side slope ecological restoration technology, the ecological restoration problem of the side slope with the slope being greater than 60 degrees can be solved effectively, the ecological environment is restored, and a new method is provided for solving the problems of high and steep side slope ecological restoration and side slope stability.

The use of a fall arrest lanyard that provides fall arrest forces at least two primary levels is disclosed. One example provides a lanyard with a pair of shock absorbers of different capacities in series. Other examples use a single shock absorber that provides at least two distinct levels of arrest force. Varying the strength of the attachment area that is to be separated to provide the arrest force and by varying the amount of area being separated at one time varies the levels of arrest force.

The invention discloses a pneumatic primary level graded low-pollution combustion chamber, which consists of a shunting diffuser, a combustion chamber outer case, a combustion chamber inner case, a fuel nozzle rod, a flame tube head, a flame tube outer wall and a flame tube inner wall, wherein the flame tube head mainly comprises a precombustion level, a main combustion level, an isolation section, a head splashing disc and a head end wall; the precombustion level stabilizes flame through a low-speed return flow zone generated by cyclone air which enters the combustion chamber through a cyclone assembly at the precombustion level; fuel at the main combustion level before a main combustion level graded ignition state is atomized under the action of airflow of an inner ring channel of the main combustion level; and the fuel after a main combustion level graded ignition state impacts the inner side of an inner ring of the main combustion level, and a pre-film vaporization mode is formed under the action of airflows of the inner ring and outer ring channels of the main combustion level. Therefore, main-level air fuel premixed gases before the main combustion level graded ignition state can stop for enough time in a main combustion zone, most of the main-level air fuel premixed gases after the combustion level graded ignition state do not enter the low-speed return flow zone stabilized flame, and complete combustion in the combustion chamber in various working states and reduction of pollution emission are guaranteed.

The invention provides a hand-written Chinese character rotation-independent identifying method based on a convolution neural network. The method includes the steps of building a Caffe deep learning framework platform containing a plurality of convolution neural network models on a graphics processor, preparing a training data set and a test data set with labels, training the convolution neural network models to identify primary-level hand-written Chinese characters on the graphics processor by using the data sets, and inputting original images of hand-written Chinese characters in HCL2000 database and images rotated randomly in various directions into the convolution neural network models to train the network, and finally inputting unknown rotated Chinese characters for testing to obtain the identification result of the Chinese character images. The method has the advantages of high smart level, simple method, accurate classification and rapid detection speed. The method has good identification performance for low-magnitude databases and has excellent identification performance for hand-written Chinese characters rotated by any angle.

The invention discloses a modular complementary type primary permanent magnet linear motor and a motor module formed thereby. The primary permanent magnet linear motor comprises a primary level and a secondary level; the primary level and the secondary level are respectively in a salient-pole structure, and an air gap is formed between the two levels; the primary level comprises a rotor module which comprises a first module and a second module; a first non-magnetic material is arranged between the first module and the second module; the first module and the second module both comprise two salient-pole magnetic materials and a permanent magnet arranged between the two salient-pole magnetic materials; the salient-pole magnetic material is provided with m numbered primary teeth, and a central armature winding is arranged on the primary teeth; the relative displacement between the first module and the second module is calculated as follows: lambda2=(k+/-0.5) tau s; the relative displacement between the adjacent two salient-pole magnetic materials is calculated as follows: lambda1=m*tau m; and the ratio of the primary polar distance to the secondary polar distance is as follows: tau m: tau s=(m+/-1):m. The invention has the advantages of symmetric back electromotive force, relatively small positioning force, low thrust fluctuation and the like and is applicable to the application occasion of a linear motor with a long-stator structure.

The invention provides a train working condition on-line monitoring method for rail transit, which belongs to the technical field of rail transit. In the working condition on-line monitoring method provided by the invention, the train failure can be divided into primary level, regional level and central level, and status data can be transmitted to the ground through a train-ground wireless communication transmission system, so that the primary level failure is analyzed and handled by a vehicle-mounted failure information preprocessor on a train correspondingly, the regional level failure is analyzed and handled by a regional information processor on the ground correspondingly, and the central level failure is analyzed and handled by a ground central information processing system on the ground correspondingly. Therefore, different types of failures can be effectively eliminated in the most appropriate place in time, intelligentized and networked train working condition on-line monitoring can be realized, and operation reliability and safety of rail transit can be finally improved.

The invention relates to a long-stroke permanent magnet linear eddy current brake, belongs to the technical field of motors and aims at solving the problems of an existing permanent magnet linear eddy current brake that a size of the magnetic field cannot be adjusted, and a high speed and a lower speed cannot be considered for the same time for the braking force characteristic. The long-stroke permanent magnet linear eddy current brake comprises a primary level part and a secondary level part between which an air gap is formed; the primary level part comprises a primary substrate and primary permanent magnets, wherein the primary substrate is of a flat plate type; the surface of the air gap side of the primary substrate is provided with the strip-shaped primary permanent magnets uniformly along a rotor movement direction; the magnetizing direction of each primary permanent magnet is parallel to the primary substrate and vertical to the rotor movement direction, and the magnetizing directions of the every two adjacent primary permanent magnets are opposite; the secondary level part comprises a secondary conductor plate which is a composite metal plate. The long-stroke permanent magnet linear eddy current brake serves as an eddy current brake.

The invention discloses a working platform leveling device of a hydraulic aerial cage. The working platform leveling device comprises a link-type crank arm, a bracket, a crank arm derricking cylinder, a primary leveling hydraulic cylinder and a secondary leveling hydraulic cylinder, wherein the link-type crank arm comprises a first link span, a first pull rod, a second pull rod and a second link span; a first pull rod and a second pull rod in a left-right direction are parallelly and respectively articulated with the first link span and the second link span in a staggered manner; and hinge joints B, C, G and F jointly define a first four-link mechanism, hinge joints C, D, H and G jointly define a second four-link mechanism, and the shared hinge joints C and G of the two four-link mechanisms entirely constitute a double-parallel four-link mechanism. The working platform leveling device of the hydraulic aerial cage is capable of realizing rotation (greater than 180 degrees) without dead points of the link-type crank arm, is large in operation range, high in flexibility, simple and compact in structure and low in manufacturing cost, has the advantages of beautiful appearance, reverse inclination prevention capability, anti-seizing capability and large operation range, and is applicable to various hydraulic aerial cages.

The invention discloses an information management system, which consists of a material management module, a production process management module established on the basis of a construction working procedure, a financial management module, an ideological and political work management module, a checking management module, an equipment management module, a primary level management module, a human resource management module, a basic data sharing module, a statistical analysis module, to-do-list reminding module and a notification announcement module. The information management system has the advantages of production cost reduction, business process informatization, integrative cooperative office, uniform sharing whole process control and the like.

A plate heat exchanger comprises a plurality of heat exchanger plates (1) formed of a metal sheet and permanently joined to each other by means of a braze material to form a plate package having first plate inter spaces (4) and second plate inter spaces (5). Each heat exchanger plate has a pattern forming a heat transfer area and a plurality of porthole areas. Each heat exchanger plate extends along a main extension plane (p). The areas extend, on one side of the heat exchanger plate, between a primary level (p′) at a distance from the main extension plane and a secondary level (p′) at a distance from and on an opposite side of the main extension plane. Each heat exchanger plate has a depth (d) defined by the distance between the primary level and the secondary level. The depth is equal to or less than 1.0 mm.

The invention provides a bionic bone tissue engineering scaffold material and preparation method thereof, and the scaffold material has multi-level micropore structure similar to the natural bone tissue. The scaffold has multi-level bionic bone three-dimensional pore structure which can be adjusted in the range from 500 nm to 1000 mum. The preparation method of the bone tissue engineering scaffold with multi-scale controllable micropore structure includes performing three-dimensional printing with medical polymer material by using a rapid proto-typing technology, customizing the primary-level micrometer scale three-dimensional pore structure and the shape of the scaffold, and preparing the second-level micrometer and nanometer scale micropore inside of the scaffold by using supercritical gas foaming. The prepared bone tissue engineering scaffold with multi-scale micropore structure can provide the three-dimensional supporting needed by the bone tissue regeneration, can meet the requirements of protein adsorption, nutriment/metabolite transportation, cell migration, and tissue growing in different scales, and has wide application prospect in orthopedic clinic.

The present invention provides a method and a control system for controlling an adsorbent bed unit in which an adsorbent bed concentration of an impurity within an adsorbent bed of the adsorbent bed unit is measured. The adsorbent bed concentration is controlled by manipulating the feed cycle time during which an adsorbent bed is adsorbing the impurities to maintain the adsorbent bed concentration at a targeted adsorption bed concentration. The targeted adsorption bed concentration is determined such that the product impurity concentration is maintained at product impurity concentration targets. The method and control system can incorporate a supervisory level of control reactive to product impurity concentration levels and related targets to determine the targeted adsorption bed concentration and a primary level of control that calculates the feed cycle time based upon an error between the measured and targeted adsorption bed concentrations. Proportional integral control can be used for such purposes.

The invention discloses a magnetic levitation vibration isolation platform, relating to the technical field of a magnetic levitation vibration isolation platform. Through the invention, the shortcoming that the existing vibration isolation platform has a natural frequency is overcome. In the vibration isolation platform disclosed by the invention, a static bearing unit comprises a rotor and a stator; the primary level of a Z-direction adjustment unit is formed by coaxially connecting multiple circular coils in series sequentially along the Z direction, and the secondary level is in a bilateral structure; and an X-direction adjustment unit comprises a primary level and a secondary level. The rotors of multiple static bearing units, the secondary level of the Z-direction adjustment unit, the secondary level of the X-direction adjustment unit and the secondary level of the Y-direction adjustment unit are fixed on the bottom surface of a moving substrate; the stators of multiple static bearing units, the primary level of the Z-direction adjustment unit, the primary level of the X-direction adjustment unit and the primary level of the Y-direction adjustment unit are fixed on a fixed substrate; and the planes of the moving substrate and the fixed substrate are parallel to each other, and an air gap exists between the two. The magnetic levitation vibration isolation platform disclosed by the invention easily forms a large magnetic levitation vibration isolation platform, has simple structure and high vibration isolation precision, is easy to control and can be applied to vacuum environment.

The invention discloses a back light source drive circuit directly driving a lamp strip circuit by using a primary half-bridge resonance circuit. The back light source drive circuit comprises a primary resonance circuit, a secondary lamp strip circuit and an optical isolating feedback circuit having an optical coupling feedback function, wherein the primary resonance circuit generates a driving pulse signal according to the received external voltage and a current signal fed back by the optical isolating feedback circuit, and provides needed work voltage for the secondary lamp strip circuit according to the driving pulse signal; and the optical isolating feedback circuit samples the loaded current in the secondary lamp strip circuit in real time, and feeds back the current signal to the primary resonance circuit. The back light source drive circuit directly lightens and controls the back light source by using the primary half-bridge resonance circuit; and optical coupling is used as the feedback control from the secondary level to the primary level. The drive circuit is simplified so as to eliminate a secondary side LED driving chip, and reduce device number of the whole system.

The invention discloses a comprehensive energy source management system for peak shifting power supplying and a method thereof. The comprehensive energy source management system for peak shifting power supplying comprises an air compressor (1), a power generator (2), an air precooling device (3), a primary level cooler (4), a secondary level cooler (5), a throttling valve (6), an air-liquid separator (7), a liquid state air storage tank (8), a liquid state air pressurizing pump (9), a nitrogen oxygen separator (10), a heating water tank (11), a high-pressure turbine (12), a low-pressure turbine (13), a power generating set (14), a nitrogen storage tank (15), a nitrogen exhaust pipe (16), a heat return pipeline (17) and a liquid oxygen pipe (18). The comprehensive energy source management system for peak shifting power supplying is characterized in that the whole system takes energy storage as a core, at the electricity using valley, energy generated by the power generator (2) is converted into liquid air to store, and is converted into a high-pressure gas by the heat exchanger in the electricity using peak, a turbine expansion machine is driven to generate electricity, and peak shifting power supplying is realized.

The invention discloses primers and a probe assembly for rapidly detecting mycobacterium paratuberculosis on site. A forward primer sequence is shown as SEQ ID No.1, a reverse primer sequence is shown as SEQ ID No.2, and a probe sequence is shown as SEQ ID No.3. The invention further discloses a kit for detecting the mycobacterium paratuberculosis. The primers, the probe assembly and the kit for detecting mycobacterium paratuberculosis RPA-nfo are high in sensitivity and strong in specificity, and mycobacterium paratuberculosis DNA of 8 copies/reaction can be detected at the minimum. The special instruments and equipment are not needed, by virtue of a thermostat water bath kettle or the temperature of the human armpit, the sensitive, specific and rapid detection for the mycobacterium paratuberculosis DNA can be carried out on the coarse lysate of a to-be-detected sample within 25min, and the primers, the probes and the kit are suitable for the on-site or primary-level diagnosis work of paratuberculosis.

The invention discloses a duck hepatitis virus type I LAMP (loop-mediated isothermal amplification) detection kit. A LAMP technology is adopted; and two specific inner primers, two specific outer primers and two specific ring primers are designed according to a gene conserved region shared by duck hepatitis viruses type I. Due to the application of the duck hepatitis virus type I LAMP detection kit and a detection method established by the invention, the defects of long detection time, large workload, cross pollution, complex operation and the like in the prior art are overcome. The duck hepatitis virus type I LAMP detection kit has the strong specificity and high sensitivity, is rapid, has low cost and simpler operation method and is particularly suitable for the requirement on field rapid detection of the duck hepatitis virus type I in the primary-level areas.

The invention discloses a PCR (Polymerase Chain Reaction) amplification primer for quickly detecting klebsiella pneumonia and application thereof, and belongs to the field of animal bacteriology and molecular biology. The PCR amplification primer is prepared from an upstream primer having a nucleotide sequence as shown in SEQ ID NO:1 and a downstream primer having a nucleotide sequence as shown inSEQ ID NO:2; the PCR amplification primer is used for preparing a PCR amplification kit for detecting the klebsiella pneumonia. A PCR detecting method provided by the PCR amplification kit has high specificity and sensitivity, good repeatability and high credibility and is capable of specifically detecting the klebsiella pneumonia and quickly and accurately obtaining a detecting result; meanwhile, the PCR amplification kit is low in cost and simple in operation, is suitable for being used at the primary level and can be used as a quick, accurate and simple detecting tool for quick laboratoryidentification of the klebsiella pneumonia and large-scale epidemiological investigation.