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The present invention relates to a method and system of capturing a three-frequency multichannel radio measurement system signal. The method comprises the steps of S1: adopting three high speed analog-to-digital converters to carry out the low pass sampling on three frequency band analog intermediate frequency signals simultaneously to obtain the digital intermediate frequency signals; S2: carrying out the down-conversion processing on the three frequency band digital intermediate frequency signals simultaneously according to the respective set carrier frequencies to obtain three frequency band to-be- despread data flows; S3: capturing three frequency band multichannel signals in a time division multiplexing capture manner; S4: carrying out the code phase search; S5: waiting for the next memorizer switching moment; S6: converging a Doppler frequency search range step by step by utilizing the speed of searching one frequency unit within one data sampling cycle to obtain the carrier parameters of the signals; S7: searching the code phase time delay of a time evaluation peak point signal; S8: obtaining an accurate instant code phase, and outputting a capture result. The system is used to realize the above method. The method and the system of the present invention have the advantages of being easy to realize, being high in precision, being able to satisfy the current engineering conditions, etc.

An image processing method, device and equipment are disclosed. The method includes sequentially acquiring N frames of images which are images captured by photographing a motion of a light source in a preset background by a photographing device, with the N being an integer greater than or equal to 2; and when the i-th frame image in the N frames of images is acquired, combining the light source image information in the i-th frame image with the light source image information extracted from each of the images in the previous i-1 frame images to obtain a first motion trail of the light source and displaying the first motion trail of the light source, with the i being more than 1 and not more than N. An image drawn by a user can be displayed in real time through the method, so that a user can preview a light painting image drawn by the user, thus achieving an effect of drawing while watching, and improving flexibility of light painting photographing.

In view of the demand of microwave photonics, astronomical spectrometric measurement and parallel optical fiber communication systems for a high-frequency spaced optical frequency comb source, especially the demand for an optical frequency comb source which can be integrated on a chip, the invention provides an optical soliton crystal optical frequency comb generation system and method based on amicro-ring resonator. The system includes a pump laser, an optical amplifier, a polarization controller, an optical frequency comb generator and a temperature controller which are sequentially connected through a single-mode optical fiber. The output wavelength of the pump laser is in accordance with the wavelength of a required optical frequency comb, and the operating wavelength of the optical amplifier is in accordance with the output wavelength of the pump laser. The polarization controller is a polarization controller which can withstand the power of the pump light signal. The optical frequency comb generator includes a package shell, a micro-ring resonator and a temperature regulator. The micro-ring resonator and the temperature regulator are packaged in the package shell. The working temperature of the micro-ring resonator is controlled by the temperature controller which is set outside the package shell and connected with the temperature regulator. The optical soliton crystal optical frequency comb generation system has the advantages of low cost, high reliability and small size.

Chemical synthesis of diiursaponin W3 is simple, cheap and fast. The diiursaponin W3 contains Chinese medicine pasqueflower active ingredients. 1,2-diose is connected with oleanol 3-bit hydroxyl group by beta-structure mode. It's practicable and stable, and the purity reaches to 96%. It's simple, cheap and fast. It can be used to control diiur medicine, its extracts and related preparations quality and research rheumatisms Chinese medicinal preparation.

The invention discloses a tow tension detection device in linear movement, which is characterized in that two ends of a guiding roller are provided with a connecting component and a supporting component respectively, a ribbon turning angle selects an obtuse angle of 145-165 degrees, the connecting component is connected with the roller by adopting a rolling bearing, and the supporting component is fixedly connected to a spinning machine base. An elastic full-bridge strain gauge is further connected between one group of the connecting components and supporting legs, and sensed stress N and front-section tension F1 and rear-section tension F2 in a ribbon can be calculated and displayed through the detection method. According to the invention, online measurement for the tension of the ribbon can be realized, detection is carried out in real time, and abnormal problems are discovered timely, thereby being conducive to control the tow production quality.

The invention relates to an information terminal for reducing D2D signaling overhead and spectrum resource interference and a communication method thereof. Firstly, a D2D server is implanted into a mobile terminal to be a public server. Secondly, the mobile terminal is implanted into a mobile phone kernel by using an SDN local controller. Finally, a forwarding entity Open vSwitch virtual switch with a forwarding function and a wireless resource mapping device of a wireless resource mapping of mobile equipment responsible for D2D communication are embedded into the mobile terminal. The number of interactions of signaling and delay between the mobile terminal and a network terminal can be effectively reduced, at the same time, the interference between a D2D user and a D2D user, between D2D users in WiFi connection, between a D2D user in a WiFi connection and a cellular network user, and between the D2D user and the cellular network user is effectively avoided, and the while the utilization rate of a spectrum resource is improved while the spectrum resource interference is reduced.

The present invention discloses a speech recognition network multimedia player system and method, wherein the system is provided with an audio information receive module, an audio information storage module, an instruction information storage module, and a control module. The audio information receive module receives an user speech command and then transfers the user speech command into audio information received by a network multimedia player, the control module searches whether the audio information storage module has the audio information or not, if having, a corresponding instruction stored in the instruction information storage module is executed, otherwise, the user is prompted to execute a related instruction. After executing the related instruction, the control module stores the audio information and the instruction information in the audio information storage module and the instruction information storage module separately. The system enlarges the function of the network multimedia player, is convenient to user and achieves an aim of numeric household intelligent.

The invention discloses a glycine max plant containing a glycine max transformation event SHZD32-01 and a unique DNA molecule in the glycine max transformation event SHZD32-01 and further provides a detection method for the unique DNA molecule. The glycine max transformation event SHZD32-01 contains a molecule comprising at least one of the following nucleic acid sequences: SEQ ID NO.1, SEQ ID NO.2, SEQ ID NO.3, SEQ ID NO.4, and SEQ ID NO.9 as well as complete complementary sequences; the detection method comprises the following steps: 1), mixing samples comprising DNA and primers; 2), carrying out nucleic acid amplification reaction so as to generate an amplification product; 3), detecting the amplification product, wherein the amplification product comprise SEQ ID NO.1 or SEQ ID NO.2. The glycine max plant containing the glycine max transformation event SHZD32-01 shows great glyphosate tolerance, and is beneficial to control over weeds; and the DNA detection of the glycine max transformation event SHZD32-01 has a high value for identifying the glycine max transformation event SHZD32-01 in the sample and breeding of the glycine max containing the DNA.

The invention relates to a bending insensitive multimode fiber and a manufacturing method thereof. The bending insensitive multimode fiber comprises a core layer and a cladding coating the core layer, wherein the refractivity profile of the core layer presents alpha power exponent function distribution. The bending insensitive multimode fiber is characterized in that the cladding comprises an inner cladding layer, a depressed cladding layer and an outer cladding layer sequentially from inside to outside; the core layer distribution exponent alpha is 1.9 to 2.2, the radius R1 is 23 to 27 mum, and the maximum relative refractive index difference delta1max is 0.9 to 1.2%; the radius of the inner cladding layer is R2, the unilateral radial thickness is 1 to 3 mum, and the refractive index difference delta2 is 0 to 0.05%; the radius of the depressed cladding layer is R3, the unilateral radial width is 10 to 20 mum, and the relative refractive index difference delta3inner at the place close to the inner cladding layer along a diameter direction is -0.29 to -0.42%; and the outer cladding layer is a pure silica glass layer. Thus, the structure is reasonably designed, the anti-bending and the bandwidth performance are excellent, the process is convenient to control, and the manufacturing and the production are easy.

The present invention relates to an electron lens for use in an microcolumn, and more particularly to a multipole electron lens wherein the electron lens includes two or more electrode layers, each of the electrode layers has a slit extending from a central axis through which an electron beam passes, and the two electrode layers are aligned on an electron optical axis such that the slits are staggered with each other. Further, the present invention relates to a microcolumn using the multipole lens. The multipole lens according to the present invention can be manufactured and controlled in a simple fashion, reduces blurring of the focus of the microcolumn, and increases an active deflective area.

The invention discloses a CNG (compressed natural gas) engine ignition advancer on the basis of closed-loop control and a method for controlling the CNG engine ignition advancer. The CNG engine ignition advancer which is an ignition angle advancer comprises an ignition advance angle measuring module, a crankshaft position signal modifying module, a crankshaft position signal conditioning circuit and an ignition pulse signal conditioning circuit. Ignition signals are inputted to the ignition pulse signal conditioning circuit, ignition signals outputted by the ignition pulse signal conditioning circuit and throttle valve position signals outputted by a throttle valve position sensor are respectively inputted to the ignition advance angle measuring module, signals outputted by the ignition advance angle measuring module are inputted to the crankshaft position signal modifying module, original crankshaft position signals outputted by a crankshaft position sensor are processed by the crankshaft position signal conditioning circuit and then are respectively inputted to the crankshaft position signal modifying module and the ignition advance angle measuring module, and signals outputted by the crankshaft position signal modifying module are inputted to an ECU (electronic control unit) of an engine. The CNG engine ignition advancer and the method have the advantages that continuous change of ignition advance angles of a dual-purpose fuel automobile can be controlled, and accordingly stable combustion of natural gas can be guaranteed.

The invention relates to a security risk state analysis method for a sensing layer of an electric power internet of things, which is characterized by comprising the following steps of: step 1, acquiring and storing related information of all terminal equipment in the sensing layer of the electric power internet of things; step 2, acquiring a plurality of equipment state type tags based on the related information, and judging the security risk of the terminal equipment; step 3, acquiring a network flow abnormal condition and a network access abnormal behavior of the terminal equipment based on a pre-generated network flow feature model and a pre-generated network access behavior feature model; and step 4, displaying the equipment state type information, the security risk information, the network flow abnormal condition information and the network access abnormal behavior information obtained in the step 2 and the step 3 in a classified manner by adopting a visualization method. According to the method, the analysis result is comprehensive and accurate, the analysis process is intelligent and rapid, meanwhile, the good visualization effect is achieved, and the safety degree of the system is improved.

The invention discloses a soil heavy metal stabilizer functioning as a nitrogen and phosphorus fertilizer, and a preparation method and application thereof. The soil heavy metal stabilizer is an organic matter-ferrous sulfide nanoparticle suspension; the mass percentage concentration of the organic matter is 0.05-5%, and the organic matter is one or more selected from a group consisting of sodiumphytate, 1-hydroxyethylidene-1,1-diphosphonic acid tetrasodium salt, amino trimethylene phosphonate, ethylenediamine tetramethylene phosphonate and 1-hydroxymethylene phosphonate; and the particle sizes of ferrous sulfide nanoparticles are in a range of 250 to 500 nm. The soil heavy metal stabilizer can passivate and fix various heavy metal ions such as chromium, arsenic, lead and zinc in soil atthe same time, increases the content of organic matters in the soil, provide nutrient elements N and P needed by plant growth and improve soil fertility, and has potential application and popularization value.

The invention discloses lightweight aggregate concrete and a preparation method thereof, wherein the lightweight aggregate concrete comprises, by weight, 300-400 parts of cement, 45-70 parts of mineral powder, 700-740 parts of sand, 420-470 parts of lightweight aggregate, 160-178 parts of water, 55-72 parts of fly ash, 5-9 parts of a water reducing agent, and 0.04-0.12 part of an air entraining agent. According to the present invention, with the lightweight aggregate concrete, the weight of the structure can be reduced, and the frost resistance durability of buildings built in cold regions canbe improved.

The invention relates to a glass processing method. The method is characterized in that a grinding head or a cutting line or another processor contacts with the processing surface of glass before grinding, cutting or other machining processes of the glass, the glass obtains heat through generating heat due to friction between the glass and the grinding head or through heating the grinding head or the cutting line to reach a softening temperature and is softened, and then cutting or grinding is carried out. The glass in a softened state is processed under optional cooling conditions, and the softened glass can automatically repair micro cracks formed due to machining during grinding or cutting in order to ensure the strength of a glass processing product, so further reinforcement processing is omitted.

Methods and devices are provided whereby a controlled personal breathing zone is maintained using temperature controlled laminar air flow (TLA) of filtered air. A substantially laminar, descending flow of filtered air is maintained with a velocity determined by the air-temperature difference between the supplied air and the ambient air at the level of the personal breathing zone. The air-temperature of the filtered supply air can be carefully adjusted to maintain the velocity-determining difference in air-temperature within the optimum range of 0.3 to 1 0 DEG C. Thus being able to at the same time displace body convection and achieve comfort.

The invention provides an information display method and device. The method comprises the steps of acquiring the office efficiency indication information, wherein the office efficiency indication information is related to the usage condition of the office management function of the preset application by a current user and at least one user associated with the current user; when the management page of the preset application is triggered, displaying the office efficiency indication information on the management page. According to the technical scheme of the invention, the office efficiency can be displayed, so that users can know the corresponding information. Meanwhile, the working efficiency is further improved.

A pueraria powder coated rice is prepared from rice and pueraria powder proportionally through immersing them in water, stirring for coating pueraria powder on the surface of each rice grain, and baking at 40-60 deg.C. Its advantages are nutritive health-care function and supplementing trace elements.

In a configuration in which a driving shaft 8 supported in a cantilever manner is connected with a drive plate 15 through a link mechanism 57 and a wobble plate 19 capable of rotating relatively for it is connected with the central shaft 32 through a rotation stopping mechanism 56 including the universal joint 37, load in the radial direction which is component of force of compression reaction force acts on the rotation stopping mechanism 56. By providing projections 53 and 55 which can be mutually engaged between the driving shaft 8 and the drive plate 15 and a special load supporting part composed of an inclined face 54 and engaging the load supporting part in the vicinity of operation region for bringing the maximum discharge capacity, load in the radial direction is supported by the driving shaft 8.

The invention discloses a meat food examination and tracing system based on Internet of Things and relates to the technical field of food safety. The system comprises an information acquisition unit, a meat food examination center processor, a quarantine unit and a meat quality data unit. The information acquisition unit comprises a feeding information module, a logistical transmission information module, a production and processing information module and a sales information module. According to the invention, the information acquisition unit is used for acquiring feeding information of meat products, logistical transmission information, production and processing information and sales information, and the quarantine unit records and detects disease conditions, illness conditions and meat quality condition during sales of the meat products in real time, so real-time monitoring of disease conditions of the meat products is achieved, control of diseases is facilitated, meat product supplying information is precisely recognized, the control of the whole supply chain is achieved, everyone has the responsibility, quality and all kinds of indexes of the meat products can be precisely known, information sharing with consumers is achieved, bacteria-carrying meat products are avoided so that health of the people is protected, and tracing management of the food safety is achieved.

The invention discloses a purification smelting process for nickel-based high temperature alloy rich in active element, and belongs to the technical field of metal smelting and casting. The process comprises the step of firstly, preparing intermediate alloy ingot rich in active element. The intermediate alloy ingot is prepared from, by weight percentage, 10-50% of Cr, 5-30% of Ti, 0-1.0% of Al, 0.01-0.05% of C, 0.001-0.01% of Y, 0-5% of A and the balance Ni. A refers to the trace element. The intermediate alloy ingot is utilized for smelting mother alloy. According to the cutting principle ofthe intermediate alloy, elementary substance raw materials of the Cr or Ti element are not added during mother alloy smelting. By means of the process, the requirement for the components, impurities and gas of the mother alloy can be met while the smelting time is shortened, the smelting efficiency and product quality of the mother alloy are greatly improved, and the economic benefit is significant.

The invention provides a mechanical stirring cooling-type crystallization device. The mechanical stirring cooling-type crystallization device comprises an upper cover body, a cover body seat, a coverbody support, an argon receiving opening, a fixed button, a slide groove, a main rotating shaft, a slide groove, a locking block, a transmission bolt hole, a transmission motor, a motor plate, a fixedhole, a motor sealing groove and a transmission belt; the top of the periphery of the upper cover body is provided with an annular groove; one side of the fixed button is provided with the slide groove, one side of the fixed button is provided with a square hole, and a locking plate is movably arranged in the slide groove by virtue of the square hole; and one side of the fixed button is providedwith a propelling bolt hole, a lower cover body adopts a bolt to penetrate through the propelling bolt hole to lock the locking plate, so as to be fixed on the bottom of the upper cover body, the inner side top of the upper cover body is provided with the argon receiving opening and an airflow baffle plate, the mechanical stirring cooling-type crystallization device can be connected with argon soas to inject argon, a crystal can be crystallized in a pollution-free manner by utilizing the chemical characteristic that argon does not react with other elements, and the direct flow direction of argon is limited, so that argon is prevented from directly blowing the crystal and from causing the cracking of the crystal.

The invention discloses a bird flu and newcastle disease double-droplet digital PCR absolute quantitative detection kit. A primer probe combination is provided and consists of a primer probe set AIV-F1R1P1 and a primer probe set NDV-F1R1P1; the primer probe set AIV-F1R1P1 consists of a primer AIV-F1, a primer AIV-R1 and a probe AIV-P1; the primer AIV-F1 is as shown in the sequence 1, and the primer AIV-R1 is as show in the sequence 2; the nucleotide sequence of the probe AIV-P1 is the sequence 3; the primer probe set NDV-F1R1P1 consists of a primer NDV-F1, a primer NDV-R1 and a probe NDV-P1; and the primer NDV-F1 is as shown in the sequence 4, the primer NDV-R1 is as shown in the sequence 5, and the nucleotide sequence of the probe NDV-P1 is the sequence 6. The bird flu and newcastle disease double-droplet digital PCR absolute quantitative detection kit has a significant application value on prevention and control of bird flu virus and / or newcastle disease virus, and contributes to controlling epidemic situations from the source and effectively preventing large-scale outbreak of bird epidemic diseases.

The invention relates to the technical field of valve detection, and in particular, relates to valve detection equipment and a use method thereof. The valve detection equipment comprises a base table, a smoothness detection assembly, a pressure testing assembly, a fixing assembly and a supporting table, a first hydraulic cylinder is used for driving, the height of a pressing block is adjusted, and the pressing block can slowly extrude a valve; the pressure resistance degree of the valve is obtained by extruding the valve, clamping teeth are arranged at the bottom end of the pressing block, the clamping teeth can protect the valve, the valve does not slide under the pressing block, meanwhile, valve fragments can be prevented from splashing, and thus the use safety of the valve detection equipment is improved; through matching of the clamping teeth and slotted holes, the pressing block can be better close to the supporting table, so that the valve can be better extruded, the pressure application range of the pressure test of the equipment is expanded, and the application range of the equipment is further expanded.

The invention provides a steering prompting device, comprising a movable part, a detection assembly and a prompting assembly, wherein the movable part is movable freely; the detection assembly comprises a plurality of position sensors; the position sensors are arranged separately; the position sensors are used for detecting the position of the movable part; the prompting assembly is connected withthe detection assembly; and the prompting assembly is used for sending a prompting signal. A steering prompting device can be arranged on the steering wheel to rotate with the steering wheel. When rotating, due to the free movement of the movable part, the movable part is generally vertically downward under the action of gravity, rotation of the ring groove also causes rotation of the sensing assembly, so that the different position sensors detect the movable parts in turn. Therefore, the invention can obtain the rotation direction and the number of turns, and then can utilize the prompting assembly to prompt the return alignment. Through the arrangement of the ring groove, the movable part and the detection assembly, the invention has the advantages of simple structure, low cost, and theprecision of the rotation direction and the number of turns, so that the rotation prompting can be clearer and the driver can be effectively assisted in controlling the vehicle.

The invention discloses a method for measuring content of calcium sulfite in sintering desulfurization and denitrification ash, and mainly solves the technical problem that the content of calcium sulfite in the existing sintering desulfurization and denitrification ash cannot be accurately measured. The technical scheme is as follows: the method for measuring the content of calcium sulfite in sintering desulfurization and denitrification ash comprises the following steps: preparing a washing solution, dissolving sodium pyrophosphate in water, and then adding ethanol, wherein the washing solution comprises the following components in percentage by mass: 68-72% of ethanol, 0.8-1.2% of sodium pyrophosphate and the balance of water; cleaning a sample; transferring filter paper with the sampleinto a beaker with the volume of 300mL, adding 100mL of water, 20mL of iodine standard solution and 4 6mL of HCL solution into the beaker, placing the beaker in a dark place for 8-12 minutes, and titrating the solution in the beaker by using sodium thiosulfate; and calculating the mass content of calcium sulfite in the sintering desulfurization and denitrification ash. The method disclosed by theinvention is simple and convenient to operate and high in accuracy.

The invention discloses a detection device for an engine crankshaft. The detection device comprises a detection platform and a detection component, wherein the detection platform is equipped with a mounting bracket for mounting a crankshaft; a rotating rod is arranged in the detection platform; the rotating rod is equipped with a plurality of discs spirally arranged at equal intervals along the axial direction; each disc is connected with a crankshaft journal of the crankshaft through a connecting component; and one side of the detection platform is also provided with a driving component connected with the rotating rod. The detection device is compact in structure, and reasonable in design. Through use of the device to detect the engine crankshaft, the simulation of a crankshaft working environment can be realized, the change in the crankshaft working state can be reflected, the accuracy of crankshaft detection can be improved, and the quality of the crankshaft can be controlled. The detection device has the characteristics of convenience in operation and high practicability.

The invention provides an unmanned aerial vehicle detection method and system based on radio frequency spectrum identification and a storage medium, and the method comprises the steps: monitoring a radio signal in real time through employing a radio detection device, searching information messages related to a suspicious radio signal if the suspicious radio signal exists, and corresponding to an original publishing unit of each information message, and the forwarding quantity of each piece of information message, inquiring according to the issuing unit authority level list to obtain authority levels of all original issuing units; performing neural network semantic analysis on each piece of information, and determining the category of the suspicious radio signal fed back by each piece of information; and obtaining a final judgment result according to the affirmed category of the suspicious radio signal by integrating all the information messages, determining whether the unmanned aerial vehicle is a forbidden unmanned aerial vehicle or not according to the judgment result, and performing management and control measures on the forbidden unmanned aerial vehicle. According to the invention, the effect of automatically and accurately judging the communication signal of the disabled unmanned aerial vehicle is realized.

The invention relates to a mechanical room and pillar mining method for a gentle dip and medium thickness orebody. The mechanical room and pillar mining method comprises the following several steps ofdividing the gentle dip and medium thickness orebody into a plurality of panels in the strike, arranging four layered mining roadways from top to bottom in each panel, enabling a heading machine to enter the bottom of each panel through a trackless equipment linking taxiway from a slope gradient outside the panels, developing a slope gradient inside each panel along the trackless equipment linking taxiway, and enabling the slope gradients in the panels to communicate with the layered mining roadways; enabling the heading machine to perform mining from the intersection of the slope gradients of the panels and the layered mining roadways to the direction of isolated ore pillars along the uppermost layered mining roadway in a manner of being from top to bottom, and firstly mining ore rooms and then mining ore pillars; remaining one ore room or ore pillar while mining one ore room or ore pillar, and repeating the operation until the ore rooms and the ore pillars are arranged in a fishboneshape; and after the heading machine completes mining, inspecting top boards, and performing top board supporting in a supporting manner of prestressed resin anchor rods and slotted screens. According to the mechanical room and pillar mining method disclosed by the invention, the heading machine is used as orebody mining equipment for the first time, so that the carrying problem during ore exploitation by a room and pillar mining method is solved, and the problems of top board management and operation safety for a tall and large open stope are solved.