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96results about How to "Give full play to the superiority" patented technology

Process for preparing arene selectivity by enhancing methanol aromatizatian and process for preparation of catalyst thereof

The invention relates to a process for preparing arene selectivity by enhancing methanol aromatizatian. The process uses methanol as raw material, compositely modifies HZSM-5 molecular sieve catalyst by active ions like Ga, Zn, Cu, Cr and Ag for catalyzing methanol aromatizatian, employs the fixed bed continuous process or the floating bed continuous process, wherein the reaction pressure is 0.1-3.5MPa; the reaction temperature is 380-500 DEG C; the space velocity of raw material liquid is 0.1-10.0 h; and N2 space velocity is 120-800 h. The advantages of the invention lie in collocation combination of mixing ion modification, and arene selectivity reaches to 70%.
Owner:TIANJI COAL CHEM IND GROUP +1

Traffic signal controller and traffic signal control method

The invention relates to a traffic signal controller and a control method. The traffic signal controller comprises a control main machine, a traffic volume acquisition module, a signal input / output module and an IO output module, wherein the control main machine comprises a main control module adopting an ARM11 embedded processing chip and a PDA microprocessor; the traffic volume acquisition module adopts a TTL electric level and a serial traffic volume acquisition module; and the signal input / output module comprises an electric carrier and a serial signal input / output module. The control method adopts a token communication system, a variable lane, tide lane and traffic signal light scheduling module is arranged in the main control module, and a traffic signal equipment set comprises a variable lane electronic directional signboard, a tide lane identifier indicator light and a traffic signal light and performs variable lane control, tide lane control and traffic signal light control. The controller and the control method overcome the drawbacks of the prior art and have the advantages of realizing variable lane sign automatic scheduling, supporting tide lane control, along with reasonable circuit design, convenient operation and use and the like.
Owner:杭州普乐科技有限公司

Facial expression recognizing method based on Gabor transform optimal channel blur fusion

The invention provides a facial expression recognizing method based on Gabor transform optimal channel blur fusion, comprising the following steps of: S1, dividing a Gabor filter into 11 channels, carrying out Gabor wavelet transform on a facial expression image subjected to normalization by the Gabor filter to extract texture characteristics of the facial expression image; S2, establishing classifiers corresponding to the channels one by one, respectively sending the texture characteristics extracted from the channels into the classifiers for classifying and recognizing, calculating the recognition rate and the definition of each classifier to various expressions, selecting 4 classifiers with top comprehensive ranking of the recognition rate and the definition to be used as optimal classifiers; and S3, carrying blur fusion on the four optimal classifiers to obtain a facial expression recognition result. The facial expression recognition method has the advantages of small calculated amount, high calculating speed and high recognition precision.
Owner:BEIJING PICOHOOD TECH

Blast furnace chute polycyclic distributing method

The invention discloses a blast furnace chute multi-ring burden distribution, which comprises firstly calculating the distance from the center of furnace burden from the center of a blast furnace after furnace burden fell into an xy plane, secondly deciding largest and smallest burden distribution angles in theory, thirdly deciding the actual burden distribution angles of outer ring and inner ring of ores and coke, fourthly deciding the burden distribution ring number of ores and coke, determining the burden distribution angle of middle ring of ores and coke and the angel difference of adjacent rings, and sixthly determining the burden distribution rings of each ring in ores and coke. The process largely enriches the regulating method on the upper portion of the blast furnace, changes coal gas distribution, effectively increases the coal gas usage of the blast furnace, reduces coke ratio, realizes the stable and long term operation of the blast furnace, has strong loading material capacity, can eliminate furnace burden gravity segregation and the existing of pile top, much reasonably distributes furnace burden, is beneficial for strengthening smelting, and improves the press amount relationship and further increases the air quantity of the blast furnace.
Owner:CHONGQING IRON & STEEL (GRP) CO LTD

Preparation method of carbon material surface boride-modified silicon-based antioxidation coating layer

The invention relates to a preparation method of a carbon material surface boride-modified silicon-based antioxidation coating layer, and belongs to a preparation method of a carbon material surface high-temperature antioxidation coating layer. The preparation method of the antioxidation coating layer comprises the following steps of firstly, preparing a boride MB2 slurry with controllable content, wherein M in MB2 is Zr (zirconium), Ta (tantalum) or Hf (hafnium); brushing, impregnating or spraying a preset layer of MB2 slurry to the surface of a carbon material substrate with an SiC (siliconcarbide) inner coating layer; after the preset layer is obtained, performing superhigh-temperature heat treatment sintering, so as to obtain the coating layer. The preparation method is characterizedin that by regulating, controlling and designing a proportional ratio of the slurry powder of composite ceramic, the content of component in the MB2-SiC (M is Zr, Ta or Hf) coating layer can be controlled; by controlling the brushing, impregnating or spraying times, the thickness of the MB2-SiC (M is Zr, Ta or Hf) coating layer can be controlled; the preset layer is subsequently subject to superhigh-temperature sintering heat treatment, so that the density of the coating layer is improved, and the bonding strength of interface of the inner coating layer is improved. The preparation method hasthe advantages that the preparation technology is simple, the coating layer is dense and uniform, the production cost is lower, and the preparation method is suitable for carbon material parts with various shapes and sizes.
Owner:CHINA UNIV OF MINING & TECH

Heat treatment wireless virtual meter central controlling system

The invention relates to a thermal process wireless virtual instruments integrating control system used in thermal process technology field. It includes virtual instrument host computer, host computer wireless communicator, a set of slave wireless communicator, a set of A / D converter, a set of input / digital converter, a set of D / A converter, and a set of digital / output converter. The host computer connects to the host wireless communicator. The main wireless communicator communicates with slave wireless communicator. The slave wireless communicator connects to A / D converter or input / digital converter or D / A converter or digital / output converter. The invention has the advantages of flexible, good adaptability, strong function, convenient to use, low cost, etc.
Owner:SHANGHAI JIAO TONG UNIV

method for diagnosing the damage degree of a bearing under different working conditions based on a GS-SVM

The invention relates to a method for diagnosing the damage degree of a bearing under different working conditions based on a GS-SVM. The method comprises the following steps: S1, acquiring vibrationacceleration signals of the bearing under different working conditions; S2, setting parameters of a VMD algorithm; S3, calculating a time domain index and a frequency domain index of the obtained vibration acceleration signal, carrying out VMD decomposition on the obtained vibration acceleration signal, and calculating a sample entropy based on a decomposition result; S4, forming a feature vectoraccording to the obtained time domain index, frequency domain index and component sample entropy of the vibration acceleration signal, and performing normalization; S5, optimizing the penalty coefficient C and the radial basis kernel function parameter g of the support vector machine by adopting a grid search method, and inputting the training set into the support vector machine for training; AndS6, inputting the test set into the trained support vector machine, and judging the damage degree of the faulted bearing. According to the method, the optimal SVM can be constructed, and the diagnosis of the damage degree of the bearing is more accurate.
Owner:FUZHOU UNIV +1

Mixed municipal sewage and fecal sewage A2/O-biomembrane nitrogen and phosphorus synchronous removing device and method thereof

InactiveCN101935132AImprove the function of nitrogen and phosphorus removalSolve the problem of mud age contradictionTreatment using aerobic processesTreatment with aerobic and anaerobic processesFecesNitration
The invention discloses mixed municipal sewage and fecal sewage A2 / O-biomembrane nitrogen and phosphorus synchronous removing device and method thereof. In the device, a second aerobic tank is connected with an anoxic tank through a pipeline and a mixed-liquid reflux pump; a sedimentation tank is connected with an anaerobic tank through a pipeline and a sludge reflux pump; and suspended filling materials are dispersed into a first aerobic tank and the second aerobic tank and are three-dimensional hollow light porous porcelain granules. By filling the suspended filling materials into an aeration tank of the traditional AAO (Anaerobic, Anoxic and Oxic) technology, carriers of an attaching and growing surface of microorganism are provided, biomass in the aeration tank is increased, processing ability of waste water is improved and sewage bulking is overcome, and attached phases and suspended phases simultaneously exist in the aeration tank to sufficiently exert superiority. On the premise that the volume of a reactor is not increased, the invention intensifies a nitration generating condition, improves the function of removing nitrogen and phosphorus of the traditional active sludge method technology, solves the problem of sludge age contradiction of the traditional AAO technology in a nitrogen and phosphorus removing process and has good water processing effect.
Owner:SOUTH CHINA UNIV OF TECH

Coal mine wet method guniting process

InactiveCN103244148AContinuously adjustable particle size distributionRegular shapeUnderground chambersTunnel liningFiberDry mixing
The invention provides a coal mine wet method guniting process and belongs to the technical field of coal mine wet method guniting. The coal mine wet method guniting process comprises the following steps of 1.1 manufacturing mixed dry materials, namely performing dry mixing of a sand and stone mixed material, cement, coal ash, a water reducing agent, fiber and an accelerator to form the mixed dry materials; 1.2 performing dry material transportation, namely transporting the mixed dry materials to a guniting working face under a coal mine; 1.3 manufacturing wet slurry, namely pouring the mixed dry materials into a stirring, conveying and guniting integrated machine and simultaneously adding water to perform stirring to form evenly-mixed wet slurry; 1.4 performing guniting operation, namely utilizing a plunger type wet spraying machine (11) to perform continuous and quick guniting operation to the working face needing guniting; and 1.5 cleaning a pipeline, namely cleaning the guniting pipeline of the plunger type wet spraying machine (11), keeping the pipeline to be clean and preventing blockage. By means of the coal mine wet method guniting process, dry mixing, conveying, stirring, guniting and other processes are tightly combined integrally, the processes are compact, manpower is saved, the efficiency is improved, guniting materials are even and consistent in proportion, and the guniting effect is remarkable.
Owner:ZIBO MINING GRP

Soil thermal conductivity factor detection device and its method

The invention relates to a soil thermal conductivity measuring device and the method thereof, which comprises a small heat pump unit (1), a warm keeping water tank (2), two circulating pumps (3), two flow quantity sensors (4), four temperature sensors (5) and a data gathering system (6). The invention has the advantages that the structure is compact, the scene measuring is stable, the test data is accurate, and the soil thermal conductivity under the two modes of heat discharging and heat charging can be measured. The invention is conducive to the development and research of the ground source heat pump air-conditioning system, and the reasonable design of the underground pipe installation system in different areas and different geological conditions nationwide. The promotion and application of the ground source heat pump air-conditioning system is promoted, and the application prospect of the soil thermal conductivity measuring device is very good.
Owner:DONGHUA UNIV

Hybrid electric vehicle compound power supply with maximally optimized energy efficiency and method of hybrid electric vehicle compound power supply

The invention discloses a hybrid electric vehicle compound power supply with maximally optimized energy efficiency and a method of the hybrid electric vehicle compound power supply. The compound power supply comprises a storage battery, a super-capacitor and a DC / DC converter, wherein the super-capacitor is serially connected with the DC / DC converter and then parallelly connected with the storage battery. The optimization method includes the steps: building mathematic models of the storage battery, the super-capacitor and the DC / DC converter; solving the loss of each model and the total power loss; concluding limiting conditions of the total loss to obtain an energy efficiency maximizing optimization model; solving by an approximate programming method; approximating a target function and constraint conditions of the optimization model as a linear function, solving the linear function by a simplex method, and taking an optimal solution meeting original conditions as a final solution of the optimization model. Power loss of an optimized compound power supply energy storage system is greatly reduced as compared with power loss before optimization, and energy use rate is increased. Working points of high-efficiency areas of the storage battery and the super-capacitor are increased and more densely distributed.
Owner:JIANGSU UNIV

Solar power supply control system and control method

The invention relates to a solar power supply control system, which comprises a solar photovoltaic panel, a storage battery, a direct current stable-voltage power supply and a controller, wherein the controller is connected with the solar photovoltaic panel, the storage battery and the direct current stable-voltage power supply and can control the on and off of the solar photovoltaic panel, the storage battery and the direct current stable-voltage power supply. The invention also relates to a solar power supply control method. In the method, when sunlight is sufficient, photovoltaic power is used preferably; when the voltage or current of the photovoltaic panel reduces to a preset value, the lead-acid storage battery is switched to and used; and the direct-current stable-voltage power supply is switched to only when both the photovoltaic power and the lead-acid storage battery can be used. In the invention, the solar power supply, the storage battery and the common stable-voltage direct-current power supply are integrated to form a diversified solar power supply system which can be switched automatically without disturbance, and the solar power supply system is free from the influences of weather conditions such as season turning, day and night alternation, weather change and the like.
Owner:HUNAN XINYASHENG PHOTOELECTRIC CO LTD

Secondary synthesis method of calcium sulfoaluminate minerals in metasilicate cement clinker

The invention relates to a secondary synthesis method of calcium sulfoaluminate minerals in a metasilicate cement clinker, comprising the following steps of: mixing a plaster in a metasilicate cement raw material and calcining; and carrying out thermal treatment on the metasilicate cement clinker containing the calcium sulfoaluminate minerals to enable the decomposed calcium sulfoaluminate minerals in the clinker is re-formed at a high-temperature state. Therefore, the invention improves the content of the calcium sulfoaluminate minerals in the clinker, sufficiently develops the superiority of the calcium sulfoaluminate minerals in the cement clinker, improves the early and long-term perofmrance of the cement clinker and increases the mixture quantity of a mixed material in the cement.
Owner:NANJING TECH UNIV

Bolt ball welding ball mixed node large span cantilever grid structure construction method

The invention provides a bolt ball welding ball mixed node large span cantilever grid structure construction method. The method comprises the steps that 1 a bolt ball welding ball mixed node space grid cell, namely the size and structure of a middle-size cell grid are determined according to the design; 2 a ground assembly moulding bed is arranged; 3 ground assembling is conducted on the middle-size cell grid; 4 coating and numbering are conducted on the middle-size cell grid; 5 a lifting point of the middle-size cell grid is determined and support profile steel is added; 6 a steel wire rope used for lifting and a chain block are arranged, and trying of lifting is conducted; 7 the middle-size cell grid is lifted and installed. The construction period can be greatly shortened, the using amount of construction revolving materials is reduced, the construction efficiency is improved, the safe hidden trouble brought by high altitude construction of constructors can be reduced at the same time, and meanwhile the special requirements on loading, span, forms and the like of a large-scale building grid structure can be met conveniently.
Owner:CHANGZHOU NO 1 CONSTR GRP

Construction method of impacting and rolling

The invention discloses an impact rolling construction method, belonging to the technical field of roadbed reinforcement construction, comprising the steps of leveling the surface of the impact rolling section, detecting the degree of compaction and water content, and when the degree of compaction and the water content of the surface of the impact rolling section are After the water content meets the design requirements, use an impact compactor to impact and roll 3 to 9 times, and at the same time use a bulldozer to level it, remove excess earthwork, arrange the roadbed, and use a vibratory roller or smooth wheel roller to roll 1 to 2 times. The secondary deformation modulus Ev2 value of the foundation soil after impact rolling; the present invention accurately limits which geological conditions are suitable for the impact rolling reinforcement construction method, more fully exerts the effect of impact rolling, and greatly reduces the impact of rolling. The number of times of rolling is generally 3 to 9 times. The detection index after rolling reaches the German high-speed railway foundation standard, which reduces the project cost and speeds up the project progress. The present invention is especially suitable for the foundation reinforcement construction of high-speed railways and highways.
Owner:CHINA RAILWAY NO 8 ENG GRP CO LTD

Walking training device for electric power training based on VR system and training method

The invention provides a walking training device for electric power training based on a VR system and a training method. The device comprises an operation platform, a PC main unit, a large screen, a chair and a VR helmet, the PC main unit is connected with the operation platform, the large screen, the chair and the VR helmet respectively, and the PC main unit is used for generating various failure virtual scenes and synchronously displaying the scenes through the large screen and the VR helmet; a touch screen displayer is arranged on the operation platform, all the failure scenes are displayed on the touch screen displayer, a cross operating crank is arranged on a handrail on one side of the chair and is used for controlling the main visual angle to move forward, backward and conduct left displacement and right displacement, and two or more buttons are arranged on a handrail on the other side of the chair and are used for selecting and judging the scenes; a vibration device and an air supply device are further arranged on the chair. Compared with an existing complex VR system, the walking training device is simple in logic of the operation process, the superiority of the VR system is sufficiently achieved, so that an operator completes walking training for electric power training more comfortably and conveniently, and the effective, safe and harmless training aims are achieved.
Owner:STATE GRID CORP OF CHINA +2

Prestressed pipe pile upright

The invention discloses a prestressed pipe pile upright. The prestressed pipe pile upright comprises a steel lattice post, a pipe pile and a pipe pile core insert. The pipe pile core insert is coaxially and fixedly connected with the lower end of the steel lattice post and fixedly inserted into the pipe pile in an annular column shape. The lower end of the steel lattice post is fixedly connected with the upper end of the pipe pile core insert. The upper end of the pipe pile core insert is connected with a pipe pile end plate on the top of the pipe pile. The lower end of the pipe pile core insert is fixedly provided with a layer board. A pouring space is formed by the layer board and the inner side gap, above the layer board, of the pipe pile and is filled with expansive concrete in a poured mode. The prestressed pipe pile and the steel lattice post are combined together to serve as an upright system for a deep foundation pit horizontal support, the system is high in construction speed, expenses are reduced, large moment of inertia is provided, the function of improving the whole rigidity is achieved, and the superiority that the steel lattice post is connected with the support at the upper portion of a foundation pit and penetrates through a bottom board for waterproof construction is fully played at the same time.
Owner:江苏九如建设有限公司

Lipid microsphere, lyophilized lipid microsphere containing docetaxel and preparation process thereof

The invention relates to a liposome micro-sphere agent with Doxitasa, and dry liposome micro-sphere, wherein the mass density of Doxitasa is 1-40mg / ml; the liposome micro-sphere component comprises Doxitasa, oil component, emulsifier, and injection water, to be prepared into vein injection. The invention also provides a relative Doxitasa dry liposome micro-sphere agent, with high load, high packing rate, better stability, and little side effect, which can be stored and transmitted easily, with target property. The inventive agent supports batch production.
Owner:金耀

MBBR (Moving Bed Biofilm Reactor) packing material negative pressure and positive pressure conveying method and device

The invention relates to an MBBR (Moving Bed Biofilm Reactor) packing material negative pressure and positive pressure combined conveying method which is characterized by comprising the following steps of: collecting an MBBR packing material via an inlet water collecting pipeline in a vacuum type and connecting to a vacuum tank, connecting the top of the vacuum tank with a negative pressure generating apparatus via a pipeline, cutting off the vacuum after the MBBR packing material is collected to the vacuum tank, and opening a positive pressure pipeline communicated with the vacuum tank. A positive air pressure pipeline is also arranged at the top of the vacuum tank, the MBBR packing material is ejected to a water pool from a packing material ejection pipeline, and a water outlet pipe connected with the vacuum tank is communicated to the water inelt end of the MBBR water pool. With the method, the packing material is not easy to break, microorganisms on the surface of the packing material are not easy to flush away, and thus, the aerobic biochemical efficiency of a carrier is greatly improved. The purpose of conveying the MBBR packing material to a long distance can be achieved.
Owner:高晓华 +3

Method for specifically and semiquantitatively detecting benzopyrene

The invention discloses a method for specifically and semiquantitatively detecting benzopyrene, which comprises the steps of antigen synthesis, antigen fixation, benzopyrene detection and detection signal acquisition. The key points are that a chemiluminescence substrate added with horseradish peroxidase reacts in a darkroom, a signal is developed and exposed by using a photosensitive film and the detection signal is analyzed. In addition, the invention also gropes a condition suitable for detection. Compared with the general method for detecting the benzopyrene, the method has the advantages of simple and convenient process, rapidness, practicability, no need of any instrument, cost saving and accurate result and provides a new path for detecting the benzopyrene in the environment.
Owner:HUNAN UNIV

Pesticide waste residue fluidized bed incinerating process and pesticide waste residue fluidized bed incinerating device

The invention provides a pesticide waste residue fluidized bed incinerating process and a pesticide waste residue fluidized bed incinerating device. The process comprises the following steps: charging pesticide waste residues into an incinerating device to incinerate at 900 DEG C-950 DEG C at pressure of minus 100-minus 200Pa; then charging smoke into a waste heat boiler to carry out heat exchange; leading the cooled smoke to be in contact with water and absorbing residual HCl and Cl2 in the smoke by alkali. The incinerating device comprises a fluidized bed incinerator body, wherein an explosive prevention door and an ammonia water spray gun are arranged on a sparse phase incinerating area; the lower part of a dense phase incinerating area is provided with a wind allotting plate, the lower part of the wind allotting plate is provided with a wind chamber, and the bottom end is provided with a residue discharge pipe; the top of the incinerator body is communicated with the upper part of a cyclone separator; the top of a center cylinder of the cyclone separator is connected with the top of a smoke channel at the tail part, and the bottom is communicated with the dense phase incinerating area of the incinerator body by a material return device. The invention can ensure the thorough incineration of pesticide waste residues, prevent secondary pollution and realize decontamination and recycling of wastes.
Owner:BEIJING HANGHUA ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD

Kit and detection method for specifically detecting lily cucumber mosaic virus

The invention provides an IC-RT-LAMP (Immune Capturing-Reverse Transcription-Loop-Mediated Isothermal Amplification) kit and detection method for specifically detecting a lily cucumber mosaic virus CMV. The kit mainly comprises a specific CMV antibody IgG, a specific RT reverse primer CMV-R, a specific LAMP primer group, a first-chain cDNA (complementary Deoxyribonucleic Acid) synthesis reagent, an LAMP amplification reaction reagent, a fluorescent dye detection solution, a negative reference substance and a positive reference substance; the specific LAMP primer group is composed of a frontward outer primer F3, a backward outer primer B3, a frontward inner primer FIP, a backward inner primer BIP, a positive loop primer LF and a backward loop primer LB; the negative reference substance is ddH2O and the positive reference substance is a Lanzhou lily CMV CP gene standard product. According to the kit provided by the invention, RNA (Ribonucleic Acid) does not need to be extracted and molecular biology special instruments and equipment including an enzyme labeling instrument, a PCR instrument or a fluorescent quantitative PCR instrument and the like are not needed; amplification reaction can be finished in a constant-temperature water bath, and the specificity and sensitivity are high; the kit is convenient to operate and has high applicability; the kit can be used for monitoring generation, spreading and prevalence of the lily CMV and is suitable for being popularized and applied in grassroots.
Owner:NORTHWEST INST OF ECO-ENVIRONMENT & RESOURCES CAS

Gearbox compound fault diagnosis method based on VMD and OMEDA

InactiveCN109238717AAvoid Modal AliasingOvercome Difficult Choice ProblemsMachine part testingCharacter and pattern recognitionFrequency bandVibration acceleration
The invention relates to a gearbox compound fault diagnosis method based on VMD and OMEDA. The gearbox compound fault diagnosis method comprises the steps that firstly, a vibration acceleration signalof a fault gearbox is obtained, the penalty factor alpha in VMD is set to be 2000, thus the modal-aliasing angle is avoided, and the decomposing number K is determined; secondly, on the basis of determined VMD parameters, VMD decomposing is conducted on an original vibration signal, and all components are subjected to envelope demodulation analysis; then, whether protruding frequency lines and the double frequency exist in envelope spectrums of all the components or not is observed, if yes, the protruding frequency lines are compared with the fault character frequency of the gearbox, and if not, the components are subjected to OMEDA noise reduction continuously and then subjected to envelope demodulation analysis; and finally, the comparing results of the protruding spectrum lines of theenvelope demodulation spectrums of all the components and the fault character frequency are synthesized, and the compound fault type of the gearbox and the parts where faults are located are judged. Signal noise reduction and separation of all frequency bands are achieved through VMD, fault impact components covered by noise are further enhanced through OMEDA, and gearbox compound fault diagnosisis more accurate.
Owner:FUZHOU UNIVERSITY

Method and device for implementing auxiliary access control judgment

The invention discloses a method and a device for implementing auxiliary access control judgment. In the scheme of the invention, a base station gateway acquires an access mode of User Equipment (UE) in a mixed mode base station, and auxiliary access control judgment is performed according to the access mode of the UE in the mixed mode base station. Therefore, the problem that the base station gateway cannot judge whether the UE can be accessed to a target base station when the UE is switched between the base stations in the base station gateway is solved by the scheme of the invention. Because the base station gateway can acquire the access mode of the UE in the mixed mode base station, the base station gateway can effectively assist the access control judgment, the corresponding switching flow can be finished in the base station gateway, the purpose of auxiliary access control judgment is really fulfilled, signaling interaction between the base station gateway and a communicating net (CN) and system load are reduced, the capability judgment of the CN on accessing the UE to a CSG is reduced, and the superiority of the auxiliary access control judgment is fully exerted.
Owner:福建省永阳国有资本投资集团有限公司

K clustering intelligent selection microwave signal multipath interference suppression method

The invention discloses a K clustering intelligent selection microwave signal multipath interference suppression method, and relates to an interference suppression method. The method comprises the following steps: 1) establishing and training a multipath interference suppression model; 2) setting test conditions of the antenna in the anechoic chamber; 3) adding reflection plate interference sources of different materials or shapes to establish an interference model; 4) dividing the difficulty condition of the interference degree; and 5) correspondingly and respectively selecting proper algorithms according to interference degree classification to complete K-clustering intelligently-selected microwave signal multipath interference suppression. When the multipath interference mode is simple,a polynomial regression algorithm is used, a gradient descent method is used to train the model until the error converges, the current optimal multipath interference suppression model is stored, theoperation is simple, and the precision is improved. And when the multipath interference mode is medium, multipath interference suppression under the condition of three interference paths is realized by adopting a random forest. When the multipath interference mode is difficult, the neural network is adopted to realize multipath interference suppression under the condition of five interference paths, and finally, the optimization efficiency of the antenna is improved.
Owner:XIAMEN UNIV

Method for impregnating graphite by using polytetrafluoroethylene

The invention discloses a method for impregnating graphite by using polytetrafluoroethylene. The method provided by the invention adopts a manner of three-time immersion-drying and one-time plasticization of graphite by using the polytetrafluoroethylene to fully exert superiority of the polytetrafluoroethylene, and the obtained impregnated graphite is impregnated impervious graphite, can be used for equipment manufacture heat exchangers, and improve corrosion resistance and high-temperature resistance of the graphite heat exchangers, thereby broadening the application range of the product, wherein the temperature resistance can reach 200 DEG C.
Owner:GUIZHOU UNIV

Kit used for specific detection of LiLy mottlt virus, and detection method thereof

The invention discloses an IC-RT-LAMP kit used for specific detection of LiLy mottlt virus (LMoV), and a detection method thereof. The IC-RT-LAMP kit mainly comprises a specific LMoV antibody IgG, a specific RT reverse primer LMoV-R, a specific LAMP primer pair, a first chain cDNA synthesis reagent, an LAMP amplification reaction reagent, a fluorescent dye detection solution, a negative control, and a positive control; the specific LAMP primer pair is composed of a forward outer primer F3, a reverse outer primer B3, a forward inner primer FIP, a reverse inner primer BIP, a forward loop primerLF, and a reverse loop primer LB; the negative control is ddH2O, the positive control is Lilium davidii LMoV CP gene standard substance. In the detection method, extraction of RNA is not needed, no molecular biology profession instrument such as enzyme-labeled instrument, PCR instrument, or fluorescent quantitation PCR instrument is needed, amplification reaction can be completed in constant temperature water bath, the specificity and the sensitivity are high, operation is convenient, the applicability is high, and the IC-RT-LAMP kit can be used in monitoring of infection, diffusion, and epidemic of lily LMoV, and is suitable for popularization.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS

Kit for detection of arabis mosaic virus (ArMV) of lilies and detection method of arabis mosaic virus

Disclosed is a kit for detection of IC-RT-LAMP of arabis mosaic virus (ArMV) of lilies and a detection method of the arabis mosaic virus and a detection method of the arabis mosaic virus. The kit mainly comprises a specific ArMV antibody IgG, a specific RT reverse primer ArMV-R, a specific LAMP primer group, a first chain cDNA synthesis reagent, an LAMP amplification reaction reagent, fluorescentdye detection fluid, a negative reference substance and a positive reference substance; the specific LAMP primer group is formed by a positive external primer F3, a reverse external primer B3, a positive internal primer FIP, a reverser internal primer BIP and a positive loop primer LF; the negative reference substance is ddH2O, and the positive reference substance is an ArMV gene standard substance for cut-flower lilies. Extraction of RNA (ribonucleic acid) is omitted, professional instruments and equipment for molecular biology of microplate readers, PCR (polymerase chain reaction) instruments are not needed, amplified reaction can be completed in thermostatic waterbath, and the kit is high in specificity and sensitivity, convenient in operation, high in applicability, applicable to monitoring of the occurrence, spread and prevalence of the ArMV virus in the lilies, and suitable for grassroots application.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS

Preparation method and application for SiO2/artemisinin antibacterial nanoparticles

The invention belongs to the fields of antibacterial agents and food additives, and specifically relates to a preparation method and application for SiO2 / artemisinin antibacterial nanoparticles. According to the invention, antibacterial nanoparticles are prepared by using nanometer SiO2 to adsorb artemisinin; meanwhile, plasma is combined to assist treatment, so the solubility of artemisinin in water can be improved, and a certain slow-release effect is obtained; thus, the bioavailability of artemisinin is improved, and the purposes of highly-efficient utilization and long-acting antisepsis are achieved.
Owner:JIANGSU UNIV
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