115results about How to "Simplify requirements" patented technology

The invention discloses a three-dimensional speckle strain measurement method, comprising: (1) speckle preparation; (2) camera calibration; (3) state information acquisition; (4) computational domaindesignation; (5) initial point setting; (6) speckle matching; (7) three-dimensional reconstruction; and (8) strain computation. By the above operation steps, the invention provides a three-dimensionalspeckle strain measurement method, which can effectively obtain high preciseness measurement results in measurements of material characteristic parameters such as full-field vibration measurement, dynamic strain measurement, high speed deformation measurement, fracture mechanics, impact excitation and dynamic material experiments. The invention has the characteristics of convenient measurement operation, high automation degree, exact and reliable results, high efficiency and non-contact measurement.

The invention provides a multi-polarization SAR compact polarimetry calibration method which comprises a calibration field compact polarimetry SAR data preprocessing process and a polarization distortion parameter calibration process. In the calibration field compact polarimetry SAR data preprocessing process, compact polarimetry SAR data radiation correction and Faraday rotation correction are mainly completed. In the polarization distortion parameter calibration process, four different types of common corner reflectors are used as reference calibrators, and a compact polarimetry calibration method (namely, a compact polarimetry polarization distortion parameter calibration method) is deduced based on a calibration model. Through the method, a polarization distortion parameter can be calibrated precisely. The calibration algorithm does not depend on the absolute RCS values of the corner reflectors, and calibration error caused by RCS inconsistency of different corner reflectors can be avoided effectively. The algorithm is of high robustness and practicability.

The invention discloses an ablation test method of a thermal protection structure of a high supersonic velocity aircraft. The ablation test method of the thermal protection structure of the high supersonic velocity aircraft includes the following steps: placing the thermal protection structure of the high supersonic velocity aircraft in an electric arc wind tunnel to conduct an ablation test. In the ablation test process, a computer utilizes a synchronous device to drive two cameras to conduct collection on an image pair, a filter device is adjusted in real-time to conduct light intensity adjustment to obtain an optical image quality when collection is conducted, and the computer processes the image pair which is collected at the same moment to obtain a three-dimensional morphology information of a measured object at the moment. According to three-dimensional morphology information of the measured object at different moment, ablation amount of the measured object is calculated. The ablation test method of the thermal protection structure of the high supersonic velocity aircraft is simple in operation and low in cost, can overcome extremely bad experiment conditions of the electric arc wind tunnel and can obtain surface morphology change course and ablation of the thermal protection structure of the high supersonic velocity aircraft in real-time.

The invention discloses a standard model aerodynamic layout for transition research of a hypersonic boundary layer and a design method. The standard model aerodynamic layout for transition research ofthe hypersonic boundary layer comprises a head ellipsoidal head and a cone body; the head ellipsoidal head and the cone body are in smooth transition with each other; one section, corresponding to the leeward side, on a bottom molded line of the cone body is an upper half molded line; the upper half molded line is linear combined overlapping of an elliptic curve and a CST curve; one section, corresponding to the bottom of an aircraft, on the bottom molded line of the cone body is a lower half molded line; and the lower half molded line is an elliptic curve. The invention further provides thedesign method of the standard model aerodynamic layout for transition research of the hypersonic boundary layer; and the design method of the standard model aerodynamic layout for transition researchof the hypersonic boundary layer can be used for obtaining the standard model aerodynamic layout. The standard model aerodynamic layout for transition research of the hypersonic boundary layer has theadvantages that the standard model aerodynamic layout has typical characteristics of a real aircraft aerodynamic layout, and meanwhile, the whole appearance can be completely analyzed and described by using a mathematical expression to satisfy simplifying demands of flight test and numerical calculation on the aerodynamic layout.

The invention relates to high-performance zinc oxide composite ceramic voltage dependent resistor material and a preparation method, which belongs to the technical field of electronic ceramic preparation and application. The ceramics takes zinc oxide as main phase, adopts praseodymium oxide as nonlinear initial phase, adopts a small amount of oxides of Co, Cr, Fe or W as potential gradient and nonlinear reinforcing agent, and comprises the following components by mole percent: 80 to 95 percent of ZnO, 0.01 to 15 percent of Pr6O, 0.01 to 10.0 percent of CoO, 0.01 to 8.0 percent of Cr2O3, 0.0 to 5.0 percent of Fe2O3 and 0.0 to 3.0 percent of WO3. The material preparation method comprises the following processing step in sequence: mixing->high-energy ball milling->drying->mixing and pelletizing->sifting->compression moulding forming->sintering->silver-layer coating. The voltage dependent resistor material has the advantages that the crystal grain is fine, the microscopic structure is uniform, the potential gradient E (the potential gradient value corresponding to 1 mA / cm<2> current density) is increased to 570 to 750 V / mm, the nonlinear coefficient alpha is 24 to 32, and the leakage current IL (the current density value corresponding 75 percent E) is 0.004 to 0.006 mA / cm<2>, and has excellent over-all electrical properties. The voltage dependent resistor material can be used for manufacturing the lightning arresters of ultra high voltage / extra high voltage power systems, and can realize the miniaturization of the lightning arrester. The invention can also be used for manufacturing cell phones and household appliance chip or multiplayer chip voltage dependent resistors.

The invention establishes a calibration-free modulation spectrum measuring software system based on a tunable diode laser absorption spectrum by virtue of a wavelength modulation technique adapted to a severe environment. The system comprises a digital phase-locking signal demodulation module, a modulation spectrum simulation module and a measured parameter extraction module which comprise 14 sub-modules. The system has the specific functions that a photoelectric signal is demodulated by virtue of a digital phase-locking algorithm so as to obtain a harmonic signal; a simulation database of the harmonic signal can be obtained by carrying out accurate theoretical calculation; the speed, temperature and constituent concentration of a flow field can be extracted by combining the harmonic signal with the simulation database.

The embodiments of the present invention provide a method for changing the interpretation style of music, comprising the following steps of: analyzing an audio file to obtain a waveform audio file; acquiring behavior information of a user, and converting the behavior information into control parameter information; and, processing the waveform audio file according to the control parameter information and outputting music that has been changed in terms of interpretation style. The embodiments of the present invention further provide a device for changing the interpretation style of music, comprising: an analysis module, a control information acquisition module and a processing and outputting module. By the technical solutions provided by the present invention, a user may change the interpretation style of music according to the current emotional needs, so that the diverse demands of the user are satisfied, and the user experience is improved; further, outputting a waveform audio file in real time solves the problem on time delay in the prior art, so that a user can better interact with friends in real time to share the music that has been changed in terms of interpretation style.

The invention provides a novel coronavirus SARS-CoV-2 detection primer group and a kit, and belongs to the technical field of virus detection. The primer group comprises a primer group aiming at an orf1a / b fragment and / or a primer group aiming at an S gene; the primer group aiming at the orf1a / b fragment comprises F3-inside, B3-inside, FIP-inside, BIP-inside, LF-inside and crRNA-inside-R, and theprimer group aiming at the orf1a / b fragment comprises F3-inside, B3-inside, FIP-inside, BIP-inside, LF-inside and crRNA-inside-R; and the primer group for the S gene comprises S gene-F3, S gene-B3, Sgene-FIP, S gene-BIP, S gene-LF, S gene-LB and crRNA-Sgene-R. The primer group and the kit are used for detecting the novel coronavirus, the consumed time is short, the cost is low, the detection sensitivity is high, and the specificity is good.

The invention belongs to the technical field of nanometric machining, and specifically relates to a method for preparing a nanoscale thickness thin film and structure on a curved surface substrate. The method comprises the steps of (1) preparing a composite nanometer impressing template which is reused many times; (2) coating a layer of ultraviolet light polymerization glue on a silicon slice; (3) attaching the composite nanometer impressing template to the silicon slice with the glue layer, adsorbing for a while, separating the composite template from the silicon slice, and contacting the composite template with the ultraviolet light polymerization glue and a target substrate which needs embossing, thus forming the uniform liquid film by liquid drops between the composite template and the target substrate; and (4) carrying out ultraviolet exposure on the structure, and separating the template and the substrate after finishing the exposure so as to obtain the nanostructure, wherein the nanostructure and the composite template are complementary. The method provided by the invention utilizes the composite nanometer impressing template to transfer the glue layer, and thus that the uniform nanoscale thickness thin film is formed on the surface of a non-planar substrate or a high curvature substrate.

The invention relates to a mobile type energy storage system of a lithium iron phosphate battery and a control method thereof. The mobile type energy storage system of the lithium iron phosphate battery is installed in a container, and is characterized by comprising a battery component, a confluence cabinet, a bidirectional current converter and a monitoring component, wherein the battery component is connected with the confluence cabinet through a direct current power line, the confluence cabinet is connected with the bidirectional current converter through the direct current power line and an alternating current power line, and the bidirectional current converter is connected with the monitoring component. Compared with the prior art, the mobile type energy storage system of the lithium iron phosphate battery and the control method therefore have advantages.

The invention relates to cervical disc prosthesis, an implantable device, a cervical disc prosthesis and implantable device combination device and a method of implanting a cervical implant to cervical vertebra. The combination device comprises the cervical disc prosthesis and the implantable device, wherein the cervical disc prosthesis is composed of an upper endplate, nucleus pulposus and a lower endplate, the upper endplate and the nucleus pulposus form a ball and socket joint, and the nucleus pulposus and the lower endplate are in interference fit to form a cylinder fitting structure; the implantable device is composed of a clamping rod, a sleeve, a rotation handle and a stop pin, the clamping rod is sleeved inside the sleeve in an empty mode, the stop pin prevents relative rotation between the clamping rod and the sleeve, the rotation handle in rotation bolted connection onto the tail end of the clamping rod promotes relative axial movement generated between the clamping rod and the sleeve whose tail end is embedded inside the rotation handle fitting groove, the sleeve squeezes the clamping head of the clamping rod in the case of axial movement of the clamping rod, and relaxation and clamping of the prosthesis are realized through opening and closing of the clamping head.

The invention relates to a lumbar intervertebral disc prosthesis, an implanting instrument, a device composed of a waist prosthesis and the implanting instrument and a method for inserting a lumbar vertebra implantation material. The device comprises the waist prosthesis and the implanting instrument, a nucleus pulposus is arranged between an upper end plate and a lower end plate of the waist prosthesis in a sandwiched mode, the upper end plate and the nucleus pulposus form a kinematic pair of a ball socket structure, and the nucleus pulposus and a guide groove structure of the lower end plate form a moving pair; an elastic clamping head in a sleeve of the implanting instrument is connected with one end of a connecting rod through threads, and a nut located at the tail end of the sleeve and in threaded connection with the other end of the connecting rod rotates to force the connecting rod and the sleeve to move relatively and drive the sleeve to extrude the elastic clamping head to be opened or closed so as to clamp or release the prosthesis.

The invention provides a method and a device for judging ozone generation sensitivity based on observation data, which relate to the technical field of ozone generation sensitivity judgment. The method comprises the following steps of obtaining observation data of a plurality of continuous time periods, the observation data comprising VOCs concentration and NOx concentration, calculating the equivalent propylene concentration of the VOCs in each time period according to the VOCs concentration, determining the ratio of the equivalent propylene concentration to the NOx concentration in the firsttime period as a first parameter and the average value of the sum of the ratios of the equivalent propylene concentration to the NOx concentration as a second parameter, and finally judging the sensitivity of ozone generation based on the first parameter and the second parameter. By means of the method, the ozone sensitivity can be judged based on a small amount of existing observation data and simple calculation, the requirements for early-stage data, professional models, codes and the like can be simplified, and therefore consumption of hardware resources such as computers is reduced, and the calculation efficiency is improved.

The invention discloses a network simplifying method for keeping network performance reliability, and aims to solve the problem of high complexity in large-scale network performance reliability evaluation calculation. The method comprises the following specific steps: I, establishing a network performance model based on a Markov reward model, and determining a network performance index; II, evaluating network performance reliability by a Monte Carlo simulation method; III, on the basis of a graph change simplifying method for keeping communication reliability, performing network simplification specific to invariable network performance reliability; and IV, performing simulation verification by a performance reliability evaluation method. Through adoption of a method for simplifying a large-scale communication network and a performance reliability evaluation method thereof, the performance reliability of the network is kept, and the algorithm complexity and test cost of network performance reliability evaluation are lowered effectively.

A print job is preferably displayed using a visual job ticketing application. An operator is enabled to create multiple job tickets describing print parameters to be applied to the print job. Using the visual job ticketing application, the operator may select a previously created job ticket to be used to display and / or print the print job. Alterations made to the print job are automatically propagated across all associated print job tickets. When creating new print job tickets, the operator may choose to start with a blank job ticket, a default job ticket, the last active job ticket or any previously created job ticket.

This invention is a new non-support, long distance compensating method of underground pipe and its system. First, the pipes to be laid are arranged on the underground foundation. Then, two or more than two rotating compensators are assembled at the set compensating positions to compensate the pipe length change owing to expansion with heat and contraction with cold. The system includes conveying pipeline, which is buried underground and is composed of several main pipelines and branch pipelines; compensating device which is arranged between main pipelines, between main pipelines and branch pipelines or between branch pipelines. The compensating device is composed of rotating compensator and connecting pipe. This invention makes construction easy and convenient. The pipeline is safe.

The invention provides a method for size renovation of aerospace parts, and belongs to the field of aerospace part repairing. The method comprises the following steps: 1) removing surface corrosion through machining; 2) surface roughening; 3) surface cleaning and finishing; 4) colloid preparation: adopting an epoxy resin adhesive material comprising a component A and a component B, and fully stirring the epoxy resin adhesive material at 20 DEG C to show the best viscous state, wherein the component A is epoxy resin, the component B is a hardening component, and the weight ratio of the component A to the component B is 100:17; 5) colloid applying; 6) colloid curing: adopting a room temperature method or a heating method to realize colloid curing; 7) size machining. According to the method, a wearproof epoxy colloid material which is maturely used in industry and can meet aerospace part utilization requirements is used for realizing effective size renovation of the aerospace parts, so that the parts can be reused, and higher cost generation caused by replacement of new parts is avoided.

The invention discloses a method for manufacturing high-temperature speckles applied to a hypersonic flight vehicle wind tunnel test. The method comprises the following steps: 1, manufacturing a speckle template on which sizes, number and location of speckles are randomly distributed; 2, treating the surface of a metal model for manufacturing speckles, removing metal chips or antirust oil layer onthe metal surface; 3, placing the speckle template on the metal model for manufacturing speckles to enable the speckle template to contact the maintaining surface of the metal model and keep stable;4, fixedly connecting the corrosion cathode of electrochemical corrosion equipment onto the metal model for manufacturing speckles, and soaking the corrosion head of the electrochemical corrosion equipment into a metal corrosion solution matched with the metal model, and taking out the corrosion head after the corrosion head is completely immersed; and finally, connecting the power supply of the electrochemical corrosion equipment, selecting the corrosion mode and corrosion voltage, and putting the corrosion head onto the speckle template for speckle treatment.

The invention provides a wall-attachment cell culture method. The method comprises the following steps of: a, inoculation, wherein cell inoculum in a cell inoculation bottle is fed into a wall-attachment cell culture device by circulation of a peristaltic pump, and vertically passes through a cell growing layer and a cell trapping layer, so that the cell is closely contacted with the cell growing layer, and the cell is adhered to the cell growing layer after standing for a period in a constant temperature environment; b, culture, wherein the flowing direction of culture solution is parallel to the cell growing layer through the peristaltic pump in a stable culture condition, while nutrition is supplied to the cell, cell metabolized products are carried away; and c, digestion. The method has simple requirements on equipment and convenience in operation, and is easily implemented as long as a plurality of incubators are connected in series or parallel when the culture scale is required to be enlarged. The wall-attachment cell culture method can be widely applied in multiple fields, such as cell seed screening, culture solution development, gene medicinal expression and production and vaccine research and production, and has great marketing value.

The invention relates to a preparation method of CdS / ZnO core-shell-structure nanowires. The preparation method comprises the following steps: 1. preparing a seed crystal layer on a clean substrate surface; 2. putting the substrate with the seed crystal layer obtained in the step 1 in a high-temperature tube furnace, and heating a reaction source (composed of thoroughly mixed high-purity ZnO and C powder) to 900-950 DEG C, thereby obtaining a ZnO nanowire array, wherein the substrate temperature is 600-650 DEG C; 3. carrying out surface vulcanization treatment on the ZnO nanowires; and 4. coating a CdS shell structure. The ZnO nanowire surface is subjected to vulcanization treatment, so the process is simple and is an improvement of the existing preparation technique. The ZnO surface is subjected to vulcanization treatment to form S dangling bonds, thereby receiving and depositing CdS molecules more effectively, implementing the smooth transition of the interface between the ZnO and CdS, and enhancing the electron transport property of the structure.

The present invention relates to an integrated circuit for smoke alarm. The integrated circuit includes three detection function pins, two power supply pins, an alarm pin, and two pins for implementing calibration, keys and instruction. The invention also comprises a smoke alarm system. The system includes the above integrated circuit and peripheral circuits. The peripheral circuits include a power supply module, a smoke sensor module, an alarm module and a key and indication module. The integrated circuit for smoke alarm and the system with the above structure have fewer pins and simple peripheral devices, the smoke alarm sensitivity and consistency are better according to a digital calibration method, a single-pin driving alarm function is achieved by a special buzzer driving mode, the calibration mode is simpler and is easier to implement, the overall cost is reduced, and the integrated circuit and the system have a wide range of applications.

The invention relates to a preparation method of alpha-lactalbumin-rich whey. The method comprises the following steps of: carrying out heat treatment on skim milk and then separating casein through enzyme coagulation treatment. Through heating the skim milk, the alpha-lactalbumin and beta-lactoglobulin are respectively denaturized, the proper denaturation degree can be reached through controlling heating conditions, and meanwhile the beta-lactoglobulin is agglomerated on casein micelles to the greatest extent; and through the enzyme coagulation treatment, such as adding rennin to the skim milk and the like, the casein enzyme coagulation can be ensured so as to realize the separation of the alpha-lactalbumin from the beta-lactoglobulin agglomerated on the casein. The concentration ratio of the alpha-lactalbumin to the beta-lactoglobulin in the whey obtained by adopting the method can be improved to 2-4 from about 0.3 of raw milk, therefore, the alpha-lactalbumin enrichment is realized to a greater degree.

The invention provides a method and a device for calculating contribution of a pollution source to PM2.5 and electronic equipment, and relates to the technical field of atmospheric environment pollution prevention and control, the method comprises the following steps: calculating the molecular transformation ratio of gaseous pollutants according to PM2.5 component monitoring data, simulating the primary PM2.5 concentration of a target pollution source at an acceptor point and the primary contribution concentration of the gaseous pollutants to PM2.5, multiplying the primary contribution concentration of the gaseous pollutants by the molecular transformation ratio and multiplying the converted molecular mass to obtain secondary contribution concentration, and finally adding the secondary contribution concentration and the primary PM2.5 concentration to obtain the total PM2.5 contribution concentration of the target pollution source to the receptor point. By means of the method, the PM2.5 total contribution concentration can be obtained based on the secondary contribution concentration and the primary contribution concentration calculated according to the molecular transformation proportion, the requirements for hardware resources and lists can be simplified, therefore, the time for evaluating the PM2.5 total contribution concentration of a pollution source is shortened, and the calculation efficiency is improved.

The invention relates to a preparation method of high-purity sodium ozagrel, which comprises the following steps: dissolving ozagrel in a sodium hydroxide solution, filtering, concentrating, and carrying out vacuum filtration to obtain the high-purity sodium ozagrel. The method is simple to operate, and has the advantages of low cost and simple equipment requirements; and the produced sodium ozagrel has the advantages of high concentration and favorable clarity.

The invention discloses a fishery breeding intelligent control system and a fishery breeding intelligent control method. The fishery breeding intelligent control system comprises a main control system (1), a feeding system (3) and a monitoring system (2), wherein the monitoring system (2) comprises a monitoring device and a signal generating device, the monitoring device comprises a dissolved oxygen sensor (22), a pH value sensor (23), a water temperature sensor (24), an ultrasonic sensor (25), an ammonia-nitrogen sensor (26), a high-definition camera (21) and a weight sensor (27); the dissolved oxygen sensor (22), the pH value sensor (23), the water temperature sensor (24) and the ammonia-nitrogen sensor (26) are placed underwater for detecting water quality situation; the ultrasonic sensor (25) is placed underwater for detecting fish school gathering numbers; the high-definition camera (21) is used for monitoring fish schools; the weight sensor (27) is used for monitoring the amount of feed; and the signal generating device is used for receiving sensor information and transmitting information.

The invention relates to a detection method and a detection device for conversion ratio of a nitrogen oxide detector of a diesel vehicle. The detection method comprises the following steps: first, introducing NO2 gas of constant concentration into a conversion device; then acquiring an indicating value of concentration of a nitrogen and oxygen channel to calculate the conversion ratio; and correcting the conversion ratio by means of the indicating value of concentration of the nitrogen and oxygen channel by pre-introducing NO gas of constant temperature into an analyzing platform. The detection device comprises a gas source, a gas circuit switching module, a flow monitoring module and upper computer control software. The gas source is connected to the gas inlet end of the gas circuit switching module, the gas outlet end of the gas circuit switching module is connected to the air inlet of the flow monitoring module, and the gas outlet end of the flow monitoring module is connected to the gas inlet end of the nitrogen oxide detector of the diesel vehicle. The detection method and the detection device provided by the invention have good field operability and traceability, so that influence of measuring errors caused by the analyzing platform is solved effectively and the accuracy of a conversion ratio detection result is guaranteed.

The invention discloses a preparation method of an activated carbon loaded nano zero-valent iron composite material. The preparation method comprises the following steps that 1, an activated carbon electrode slice is prepared by adopting a diaphragm roller pressing method; 2, an electrodeposition liquid is prepared; 3, the electrodeposition liquid obtained in the step 2 is placed in a constant-temperature water bath state, the activated carbon electrode slice in the step 1 is taken as a cathode, a pure iron sheet serves as an anode, a direct current with constant current density is additionally used for carrying out electrodeposition reaction, and nitrogen is continuously fed in the process; and 4, after electrodeposition is completed, the activated carbon electrode slice is taken out, ultrapure water is used for washing, then ultrasonic oscillation is carried out, the ultrapure water and ethanol are adopted for alternate washing, and the activated carbon loaded nano zero-valent iron composite material is obtained after vacuum drying. According to the activated carbon loaded nano composite material which is prepared based on the electrodeposition method, the equipment is simple, operation is convenient, the reaction temperature is low, the time is short, the cost is low, and the prepared activated carbon loaded nano composite material is good in dispersibility, large in specific surface area and controllable in load amount.

The invention provides a force feedback equipment handle posture measuring method based on an inertia measuring device. According to the method, firstly, due to the inertia characteristics of the inertia measuring device, any posture of a handle in the space can be obtained only through a single measuring device; secondly, a posture calibration algorithm and a posture interpolation algorithm are used so that the measured posture can meet the requirement of force sensing rendering for high-frequency high-precision posture information. Meanwhile, in the virtual reality simulation environment with force feedback, it is verified that the method can meet the requirement for force sensing interaction. The inertia measuring device is used for measuring the postures, the postures of three degreesof freedom of the tail end can be measured through just one device, and the requirement for mechanism simplification of the equipment handle can be met; the inertia measuring device is directly connected with the force feedback equipment handle and does not need to be connected with a rotary joint through a mechanism structure, the measured azimuth angle is only related to the space posture of thehandle and is irrelevant to the placement mode of a force feedback equipment mobile platform, and measurement is more precise.

The invention discloses an air-conditioner and an indoor unit thereof. The indoor unit of the air-conditioner comprises a shell and an air outlet which is formed in the shell in a liftable mode. In particular, when the air outlet rises to a first preset position, the air outlet side of the air outlet and the shell can be sealed. Due to the fact that sealing between the air outlet side of the air outlet and the shell is guaranteed when the air outlet rises to the first preset position, the effect that airflow can only be exhausted out of an air outlet grille of the air outlet instead of being exhausted out of the gap between the air outlet and the shell can be guaranteed, and thus airflow adjustment can be realized. In addition, for the reason that the air outlet side of the air outlet and the shell are sealed, the effect that wind is exhausted out of the air outlet grille all the time can be guaranteed, and the requirement for blowing people can be met easily.