211results about How to "Overcome the cycle" patented technology

The invention discloses a fire-proof adhesive and application thereof. The fire-proof adhesive comprises the following components by parts: 100 parts of high-temperature bonding agent, 10-70 parts of fire retardant, 0.5-50 parts of flame retardant synergist, 5-50 parts of strength enhancer, 0.05-20.0 parts of water-proof modifying agent and 0.01-2.0 parts of curing modifying agent. By adopting the fire-proof adhesive and a preparation method of a fire-retardant EPS (Expandable Polystyrene) foam heat-insulating plate, the combustion performance and physicochemical performance of the fire-retardant EPS foam heat-insulating plate can be improved remarkably. For example, the heat-conducting coefficient can be lowered below 0.055w / m.k, the specific gravity can be lower than 150Kg / M<3>, the compressive strength is higher than 150KPa, and the heat value is less than 3MJ / kg.

The invention discloses a method for preparing nano copper conductive ink, which can be applied in the field of printing electronic technology, in particular ink jet printing technology. The preparation method comprises the following steps of: dissolving copper salt and protective agent into a solvent, heating and stirring the solution, adding a small amount of alkali solution to adjust the pH ofthe solution to between 7 and 10, dripping a reducing agent into the solution, continuously stirring the solution to react for 30 to 60 minutes, and then cooling the reaction solution to room temperature to obtain nano copper dispersion; performing centrifuging, washing and vacuum drying at room temperature on the nano copper dispersion to obtain nano copper granules; and dispersing the nano copper granules into an organic solvent, and ultrasonically treating the solution to obtain the nano copper conductive ink. The method solves the problems of complex preparation process and long preparation period in the prior art, has the advantages of simple and convenient operation, low production cost, short flow and no harmful waste generation, and realizes the goals of environmental protection and economy; and the prepared nano copper conductive ink has good dispersion property and high stability.

A multi-operating mode frame type portable landslide testing device for a geomechanical model belongs to the field of geological hazard model test. The testing device comprises a frame-beam-type testing bed, a rainfall simulator, a water level regulator and a self-weight horizontal loading mechanism, wherein the frame-beam-type testing bed mainly comprises a cuboid framework, a front panel, a rear panel and a base plate; the rainfall simulator is arranged at the top of the frame-beam-type testing bed and comprises a plurality of spraying pipes and nozzles on the spraying pipes and is used for simulating rainfall in the frame-beam-type testing bed; the water level regulator comprises a left-side trough and a right-side trough respectively formed on the left and the right sides of the frame-beam-type testing bed, and a plurality of drainage holes are respectively formed on the right panel of the left-side trough and the left panel of the right-side trough and used for changing the water levels of water level simulation libraries in the left-side trough and the right-side trough; and the self-weight horizontal loading mechanism is arranged above the right-side trough and used for bearing weights, so as to exert horizontal load to the landslide model in the frame-beam-type testing bed.

The invention relates to a multi-micronano detector networking joint demonstration verification system based on an intelligent mobile robot, comprising a ground synergic control workstation, a synergic control model library, a satellite wireless communication equipment simulator, an intelligent mobile robot, a GPS (Global Positioning System) receiver, video navigation equipment and a display terminal, wherein the ground synergic control workstation controls the synergetic work and the formation transform and maintenance of the whole system; the synergic control model library provides a control algorithm and a control model for the ground synergic control workstation; the satellite wireless communication equipment simulator provides a communication link between satellites and the workstation; the intelligent mobile robot as a carrier of the GPS receiver and the satellite wireless communication equipment simulator is controlled by the control workstation to move and used for simulating the relative position change among the satellites; the GPS receiver and the video navigation equipment realize the relative navigation among the satellites; and the display terminal displays a networking joint verification result in real time. The invention can effectively decrease the test cost of a multi-micronano detector networking detection system, shortens a research and development period and has important engineering application values.

The invention discloses a multifunctional high efficient organic material decomposition agent and a preparation method thereof. The decomposition agent of the invention comprises composite original strains consisting of bacillus amyloliquefaciens, Aspergillus oryzae, Trichoderma viride, and Saccharomyces cerevisiae and an organic material carrier, and an inorganic carrier. Strains of the decomposition agent can be mutualistic, and have complementary advantages. The adaptation is wide, and a plurality of organic matter clastic enzymes can be produced by metabolism. The decomposition agent has high activity and can be used for fermentation and conversion of a plurality of organic materials such as livestock and poultry excrements, crop straws, city sludge, food waste, food processing and pharmaceutical waste residues, and has fast fermentation start, fast deodorization, low temperature resistance, and low moisture resistance. The fermentation period is shorter by 5-7 days than that in the same technology. Fermented and converted organic fertilizers have the obvious rhizosphere ecological regulation and control function, promote the root growth, and improve the root vitality. A plurality of soil borne diseases are prevented by improving the flora diversity, hyperparasitism and biological antagonism.

One embodiment of the invention provides a question answering device and method for vehicles, belonging to the field of vehicles. The device comprises a receiving module for receiving questions brought out by users; an application scene classification module for performing application scene classification on the questions brought out by the users, wherein the application scene comprises one or many of the followings: fault type, general knowledge type, handbook type, car purchasing type and insurance type; a semantic comprehension module for semantic recognition of the questions brought out by the users according to the classified application scene to obtain feature information; an answer assuring module for determining answers corresponding to the questions brought by the users according to the feature information; and an answer outputting module for outputting the answers corresponding to the questions brought by the users. The method and device effectively solve the problem of low accuracy of FAQ-based question answering mode.

The invention discloses a closed-loop test system of a flexible direct current transmission system control and protection system. The closed-loop test system includes a real-time digital simulator, interface hardware equipment and control protection equipment of a modularized multi-electric level-based flexible direct current transmission device; the interface hardware equipment includes a power amplifier, a terminal type relay and a converter valve internal analog quantity and pulse expansion plate; the real-time digital simulator is connected with the control protection equipment of the modularized multi-electric level-based flexible direct current transmission device through the interface hardware equipment; and as a result, the closed-loop test system can be formed. The closed-loop test system is simple and flexible. With the closed-loop test system adopted, an entire modularized multi-electric level-based flexible direct current transmission actual control protection system can be tested conveniently and quickly.

The invention relates to a novel normal-pressure room-temperature plasma induced mutation breeding device. The novel normal-pressure room-temperature plasma induced mutation breeding device comprises a sample processing system, a cooling system, a control system and a detection system; the sample processing system comprises a clean working chamber without bioactive contaminants; a step motor and an object stage are arranged in the clean working chamber; the object stage is arranged on the step motor; at least one sterilizing device mounting position is reserved in the inner cavity or on the wall of the clean working chamber; the detection system comprises a gas flow controller, a temperature sensor and a position sensor; and the control system comprises an operating panel and a controller, and the controller is used for controlling the step motor to realize rising and falling or horizontal rotation of the object stage so as to automatically process a plurality of samples. The novel normal-pressure room-temperature plasma induced mutation breeding device is capable of realizing the functions of continuous automatic processing, automatic sterilization, automatic monitoring and control on the samples, and also capable of completing the plasma induced mutation breeding in the normal pressure and room temperature environment at higher efficiency.

The invention discloses a high-speed variable point FFT (Fast Fourier Transform) processor based on FPGA (Field-Programmable Gate Array) and a processing method of the high-speed variable point FFT processor. The FFT processor disclosed by the invention comprises a multi-stage processing module and a first-stage output module; the multi-stage processing module and the output module are cascaded together in pipeline manner. The processing method disclosed by the invention comprises the following steps: 1, initially configuring; 2, receiving data; 3, saving data; 4, carrying out butterfly processing; 5, judging whether the FFT operation is finished or not; and 6, outputting result. The invention mainly solves the problems that the conventional FFT processor is complicated to control, the module is poor in transportability, and the hardware is hard to realize. Through the adoption of radix-2 algorithm with an improved structure, the structures of all stages of the FFT processor of the invention are firm, the control logic is simple, the module is high in transportability, and the high-speed variable point FFT processor is very suitable to realize in one-chip FPGA, and can obtain characteristics of high speed and high precision at the same time.

The invention discloses a high-pressure separator and a method for high-pressure separation, and is characterized in that: a cyclone gas-liquid separator is disposed on the middle-upper part of a housing of the high-pressure separator; the cyclone gas-liquid separator is connected to the housing of the high-pressure separator through a column tray plate or a gas-collecting pipe; mixed gas entering the high-pressure separator is cyclone-separated by the cyclone gas-liquid separator; after oil, water and few solid particles are removed, the gas is discharged from the high-pressure separator. The invention can reduce the gas phase molecular weight of the high-pressure separator, eliminate physical factors which cause foaming of desulfurizers in a desulfurization tower, and prolong the continuous operation period of the whole device.

The invention relates to a method for preparing traditional Chinese medicine health-care liquor, which belongs to the technical field of liquor brewing. The method is characterized by being carried out according to the following procedures: pulverizing medicinal materials, sieving, saccharifying starch, filtering or centrifugalizing to remove medicine residues, fermenting saccharification liquid to prepare alcohol and ethanol, separating double water phases of inorganic salt and collecting an upper phase, wherein the medicinal materials are peltate yam, ussuri fritillary, yam, radix puerariae, yam, ginseng and the like which are rich in starch, the starch in the medicinal materials is saccharified by a double-enzyme method, the saccharification liquid is inoculated with a strain which produces the ethanol to carry out alcohol fermentation, the inorganic salt is added into fermentation liquid after the fermentation is finished, the ethanol is replenished according to requirements to form the double water phases, and the upper phase is separated so as to obtain the health-care liquor. At different periods of saccharification or different periods of alcohol fermentation, the assistant materials of other medicinal materials are added for assisting or enhancing the health-care function of the health-care liquor. The invention overcomes the defects of long consumed time of production, incomplete dissolution of the traditional Chinese medicine effect components of the medicinal materials and the like of the traditional health-care liquor, omits a traditional distilling technology, saves energy resources and retains the natural and pure taste of the original liquor.

The invention relates to a detecting method of water environment pollution source based on wireless sensor networks. The technical scheme is that, firstly, n sensor nodes are uniformly arrayed in a to-be-detected water environment area, the sensor nodes are all connected with a sink node in a wireless multi-hop method, the sink node is wirelessly connected with a gateway, and the gateway is connected with a data management center through a data wire; a management software is mounted in the data management center and includes a detecting module and a positioning module of the water environment pollution source; and finally, as long as the collected data of the sensor nodes is substituted into the detecting module and the positioning module of the water environment pollution source by the management software of the data management center, the pollution source can be detected and the position coordinates of the pollution source can be calculated. Therefore, the invention has the advantages of simplicity and convenience for carrying out, high precision, strong operability, low cost and short-time efficiency, and provides a more advanced method for the actual detecting and positioning of the water environment pollution source.

The invention discloses an ethylene cracking furnace of two range radiant furnace tube, which is characterized by the following: adopting special radiant furnace tube; bending the bent (10) of the first range pipe and the bent (12) of the second range pipe in two plans of F and G; possessing flexible inclination of the bent. This invention can occupy less fire box space, which can provide bigger production capability.

The invention belongs to the technical field of chemical engineering synthesis, and particularly relates to a preparation method of biologically degradable thermoplastic polyurethane elastomer. According to the invention, a simple one-stage method is adopted, and polymer polyol, diisocyanate, and a chain extender are used to synthesize the biologically degradable thermoplastic polyurethane elastomer. The synthesized elastomer keeps excellent mechanical property, wear resistance, oil resistance, high strength, high modulus and other performance, and has the prominent characteristic of being able to achieve auto-biodegradation for a proper duration or under a proper natural environment, so that no toxic material or pollution is generated, and the pollution of the environment by the waste material is effectively avoided. The preparation method can overcome the defects of long degradation period in the conventional aliphatic polyester TPU and of high manufacturing cost in polycaprolactone TPU, and is widely applied to various fields.

The present invention relates to a metal material preparation method, particularly to a method for preparing a metal through continuous reduction in a molten salt medium. According to the method, a molten alkali metal and alkaline earth metal mixing halide MaY-MeY2 is adopted as the flux of a molten salt medium, an alkaline earth metal oxide MeO / alkaline metal halide MaY mixture capable of being dissolving in the flux of the molten salt medium is used to replace an alkaline metal so as to be adopted as a reduction agent, the specifically-selected MeO / MaY mixture is added to the molten MaY-MeY2 flux to form a MeO-MaY-MeY2 molten salt, the molten salt medium is subjected to electrolysis to decompose the MeO dissolved in the medium so as to finally obtain the Ma-MaY-MeY2 molten salt medium, an oxide MO is added to the formed Ma-MaY-MeY2 molten salt medium under the support of the electrolysis process performing under the conditions, and the alkali metal Ma instantly performs thermal reduction on the added oxide MO so as to prepare the metal M. According to the present invention, the disadvantages of complex operation and danger of the direct alkali metal reduction agent adding in the traditional thermal reduction are overcome; the excessive use of the alkali metal reduction agent is solved, and the continuous production can be achieved; and the cost is low, and the energy consumption is low.

The invention discloses a method for rapidly testing casting blank segregation by utilizing a direct-reading spectrometer, which is suitable for the quantitative and trending detection in the casting blank segregation, belonging to the technical field of metallurgy analyzing and detecting. In the method, the direct-reading spectrometer is adopted to simulate an in-situ analyzer to detect the casting blank segregation; and the direct-reading spectrometer segments and dots a test sample, and simulates the in-situ analyzer to analyze the test sample, so as to quantitatively detect the continuously cast blank macrosegregation. The method can overcome the defects that the in-situ analysis sample preparation is complex, the testing period is long, the detection cost is high and the like, satisfies the generalized quantitative detection to the casting blank in the continuous casting production, and provides a good popularization and reference method for the iron and steel enterprises owning rapid spectrum analyzers in the trending and quantitative detection of the continuously cast blank segregation. Compared with the traditional pickling method for detecting the casting blank segregation, the method has the same trend on the description of the casting blank segregation as that of the pickling method; the casting blank segregation result detected by the direct-reading spectrometer not only can describe the casting blank segregation condition, simultaneously can clearly describe the component segregation curve of each element, and has the visual digitized function.

A frame synchronization method of a GPS receiver comprises the following steps: (1) after the GPS receiver is turned on and is fixed firstly, the local clock is adjusted periodically to ensure that the times and variation periods of the local clock and the GPS clock are consistent, the current position of the GPS receiver is recorded; (2) after the channel of the GPS receiver is unlocked and recaptured, the local time and ephemeris are read, the preliminary position of the satellite is calculated according to the ephemeris and the approximate launch time of satellite signals; (3) the uncorrected approximate distance of the GPS receiver and the satellite is calculated according to the recorded initial position of the GPS receiver and the preliminary position of the satellite so as to obtain pseudorange; (4) the local time is corrected according to the time used for executing the step (2) and the step (3) to obtain the satellite launch time of the current teletext; and (5) the frame count, bit count and millisecond count of the current teletext are calculated according to the result of the step (4), and frame synchronization is performed to extract the teletext.

The invention relates to the technical field of image stitching, in particular to a 3D image stitching method and apparatus. The method includes the steps of obtaining images which are to be stitched and shot by a distributed camera in a target monitoring area, wherein an overlapping area in a set ratio is arranged between every two stitched images; determining the position correspondence of image feature points of the images to be stitched; determining a geometric projection plane through overall orientation information of the image feature points; projecting all of the images to be stitched to the geometric projection plane according to the position correspondence of the image feature points to determine an overall diagram framework; stitching the images according to overall coordinates of the image feature points to obtain a three-dimensional panoramic image. The3D image stitching method and apparatus can quickly perform stitching for images in the target monitoring area to achieve 3D scene display and effectively overcomes the deficiencies of heavy workload, long cycle and model re-use difficulty of existing reverse three-dimensional modeling so as to perfectly meet the actual needs of three-dimensional scene display of users.

The invention discloses a hyperspectral measurement method of the nitrogen content of wheat plants. The method comprises the following steps: selecting test samples, collecting data, processing the data and screening models, constructing a most suitable monitoring model of the nitrogen content of the wheat plants, optimizing the monitoring model of the nitrogen content of the wheat plants, and testing and inspecting the monitoring model of the nitrogen content of the wheat plants. According to the method, different wheat genotypes are used as materials, hyperspectral remote-sensing technologyis utilized to measure the nitrogen content of the wheat plants under different conditions of planting locations, years, growth development time periods, fertilization levels, planting density and thelike, the hyperspectral remote-sensing technology overcomes the disadvantages of cumbersomeness, troubles and manpower consuming of traditional measurement methods, a large amount of continuous spectral information can be quickly, effectively and non-destructively obtained, and possibility is provided for real-time monitoring of crop growth trends and nutritional status and estimation of crop nitrogen content, yield, quality and the like.

A process for preparing globeflower flavone, luxtexin, vitexin and quercetin-neohesperidoside from Chinese globeflower flower includes such steps as reflux extract in alcohol solution, adsorbing by macroreticular resin, cluting, concentrating, drying to obtain globeflower flavone, and separating and purifying, luxtexin, vitexin and quercetin-neohesperioside by HSCCC.

The invention relates to a normal pressure low temperature leaching production method for alumina comprising the steps of, (1) subjecting the bauxite to extraction reaction in alkaline solution, filtering to obtain queous alkali and slags containing sodium aluminate, (2) subjecting the queous alkali to compression and cooling down for crystallization, filtering to obtain hydrated sodium aluminate coarse-grain and the filtrated stock solution, dissolving the hydrated sodium aluminate coarse-grain with water or diluted alkaline liquor, obtaining aluminum hydroxide through desiliconization operation, and calcining the obtained aluminum hydroxide.

The invention relates to a method for producing alumina from bauxite. The method adopts sodium hydroxide solution in high molecular ratio, can efficiently extract alumina from indissolvable-diasporite type bauxite at low temperature under the normal / low pressure, is mild in operation conditions, and has actual dissolution rate up to over 90 percent. After stripped slag-containing suspension is subjected to flash evaporation cooling to crystallize and precipitate sodium aluminate hydrate crystals, the sodium aluminate hydrate crystals are dissolved in water or dilute alkali solution and then subjected to desilication, seed precipitation and calcination so as to obtain alumina meeting the requirements of metallurgical grade. Slag is dealuminized through sodium aluminate hydrate crystallization mother liquor and then is subjected to sodium removal so as to effectively reduce the content of sodium oxide and alumina in red mud, enable the composition, alkali content and other main indexes of obtained red mud physical phase to meet the requirements of raw materials for producing cement, reduce the loss amount of alkali solution and raise the resource utilization rate of bauxite. Dealuminized stripping solution can be recycled for stripping bauxite, so that industrial operability is greatly improved.

The invention discloses a treatment method for tunnel local collapse. A supporting body with the cross-section shape which is identical to that of a tunnel is produced by a corrugated pipe, the supporting body is pushed into a tunnel collapse affected section and a collapse body, cleaning of the collapse body can be performed, or grouting and solidification are performed on tunnel surrounding rock of the collapse affected section and surrounding rock at the position of the collapse body and then the supporting body is pushed into the collapse body so as to perform cleaning on the collapse body. By means of the treatment method for tunnel local collapse, defects of complicated construction processes, large resource consumption and long construction period in the prior art can be overcome, particularly, defects that totally sealed protection of loose rock and earth mass can not be achieved and personal safety of constructors and device safety are severely threatened in the prior art can be overcome, and construction safety can be effectively improved. According to the treatment method for tunnel local collapse, totally sealed protection is achieved in the tunnel by means of a steel corrugated pipe, the construction period is effectively saved, the tunnel stability and safety can be guaranteed, and processes and steel quantity of I steel supporting, steel grating supporting and the like can be effectively reduced. Besides, the treatment method for tunnel local collapse is suitable for engineering application.

The invention discloses cloning, expression and application of a Lactobacillus brevis glutamate decarboxylase gene. The gene is derived from Lactobacillus brevis CGMCC No.1306, and is obtained by amplifying a Lactobacillus brevis genome DNA through PCR (polymerase chain reaction); and the full length of the gene is 1407bp. BamH I and EcoRI restriction enzyme recognition sequences are respectively added to both ends of the gene; and the gene is connected with pET-28a(+) which is digested by the same restriction enzymes, and is converted into colibacillus expression host bacteria BL21 (DE3), thereby realizing the recombinant expression in the colibacillus; and the molecular weight of the expression product glutamate decarboxylase is 53538.6Da. The recombinant glutamate decarboxylase, or the engineering bacteria for expressing the recombinant glutamate decarboxylase can convert L-glutamic acid or salt thereof into gamma-aminobutyric acid by decarboxylation, and has the advantages of high conversion efficiency, high product purity and high production efficiency.

The invention relates to the filed of precise agricultural research, and discloses an observation device and method. The device comprises a movable device and an observation scaffold (5) with adjustable height, wherein the observation scaffold (5) with adjustable height is fixed on the movable device; the movable device is provided with a storage battery at the side opposite to the observation scaffold (5); the observation scaffold (5) comprises a support frame (3); an arc-shaped track (8) with an adjustable azimuth angle and an adjustable zenith angle is arranged on the observation scaffold (5); the arc-shaped track (8) comprises an instrument platform (10) which can carry a plurality of different sensors; and the observation scaffold (5) is provided with a hydraulic jack (2). In the invention, by means of omnibearing and multi-angle movements of different sensors on the arc-shaped track, tridimensional spatial information of a same target ground object can be continuously collected.

The invention discloses a voice encryption method, which includes the following steps that digital voice signals are varied from a time domain to a frequency domain according to set length in sectional mode, varied voice signals are encrypted according to a secret key, performing conversion from a transformation domain to the time domain on encrypted voice signals, and encrypted time domain signals are obtained. The voice encryption method can guarantee safety of a mobile communication system and can confront effects of encoding problems in 2G and 3G standard on the secret key well. The invention further discloses a voice decryption method.

The invention relates to a verification method for indirect measurement of a ground leaf area index (LAI). The method includes the steps that a virtual plant geometric model base and a virtual vegetation scene base are set up; an observation scheme is designed, simulation implementation is carried out in a virtual vegetation scene according to the principles of all indirect measurement methods of the ground LAI and the observation scheme to form a simulation database; the sum total of the area of xylon parts and the area of triangular patches of leaves in the scene is counted to obtain true values of the LAI, the WAI, the PAI, the parameter of the xylon total area ratio, base components of canopies and the xylon component aggregation index; simulation results of all the measurement methods of the LAT are calculated, the true values of the scene are taken as the simulation calculation results to verify reference values, and the existing indirect measurement methods of the ground LAI are improved, realized in the virtual vegetation scene base and repeatedly circulated to obtain the final existing indirect measurement method of the ground LAI. The verification method does not need to destructively sample vegetation, manpower and material resource investments are small, and verification efficiency, precision and expandability are improved substantially.

The invention provides a preparation method of 2, 3, 3, 3-tetrafluoropropene, which comprises the following steps: taking monochlorodifluoromethane (R22) and methane chloride (methyl chloride) as raw materials and carrying out thermal cracking reaction at a high temperature of 600-1000 DEG C under the condition that N2 exits to prepare the 2, 3, 3, 3-tetrafluoropropene, wherein the volume ratio of the monochlorodifluoromethane to the methane chloride is 1-3:1, and the retention time of a reactant is 0.01-0.2 seconds. The reaction raw material used in the preparation method is easy to obtain, the defect of high cost of the used raw material in the prior art is overcome, the production cost is greatly reduced, and the reaction process is simple. The prepared 2, 3, 3, 3-tetrafluoropropene has the advantages of zero ODP and low GWP and can be used as a substitute of an automotive air-conditioning refrigerant.

The supercritical CO2 process of extracting proanthocyanidin from grape seed includes the following steps: adding anhydrous ethyl alcohol as entrainer and grape seed after being supercritical deoiled in certain ratio into extracting kettle for extraction at 35-55 deg.c and 30-50 MPa; soaking statically for 30-90 min; adding entrainer continuously in certain ratio and discharging dynamically; twice separating the extracted solvent to obtain proanthocyanidin containing solvent; and evaporating the solvent to obtain proanthocyanidin product. The process of the present invention has reduced entrainer consumption, short production period, high yield and high proanthocyanidin content in the product.

The invention discloses a method for producing a polyurethane micropore elastic body taking TODI as an isocyanate component, which aims at improving the heat resistance and wear resistance of the polyurethane micropore elastic body produced by the prior art. The product prepared by the method is mainly used as a high strength damping element bearing dynamic fatigue, such as buffering and damping elements in means of transportation such as automobile, damping blocks in bridges and the like.