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30results about How to "Overcoming rate" patented technology

TiAlN/TiAlCN multilayer coating of substrate surface and preparing method thereof

ActiveCN102011090AMitigate defectsAlleviate dislocationVacuum evaporation coatingSputtering coatingSputteringHardness
The present invention discloses a TiAlN / TiAlCN multilayer coating of substrate surface and preparing method thereof, wherein a transitional layer is between a substrate and a TiAlN / TiAlCN multilayer coating; the multilayer coating is formed by alternating periodic arrangement of TiAlN films and TiAlCN films; in a period, the thickness sum of the TiAlN films and the TiAlCN films is 1-20 nano; the percentage by weight of C atom in the TiAlCN films is 0.1-5%. The multilayer coating of the present invention has the advantages of high hardness, low internal stress and high tenacity; the cutting efficiency and corrosion resistance of the substrate can be improved, and the service life of the substrate can be prolonged. In the present invention, the multilayer coating is deposited by high power pulse magnetron sputtering technique; the problems that cathode arc ion plating and depositing speed is too fast to prepare a nano epitaxial film and that target poisoning is caused during the procedure for preparing films by DC magnetron sputtering are solved; the nano modulation period is controlled via adjusting the autorotation and revolution speeds of the substrate and adjusting the quantity of targets.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Gelatin hydrogel and preparation method and application thereof

InactiveCN107236135AIncrease satietyIncrease the amount of double bondsAerosol deliverySurgeryCross-linkUltraviolet lights
The invention discloses gelatin hydrogel, which is of a water molecule filled porous three-network structure, wherein the first network is a cross-linked network between the modified gelatin; the second network is a cross-linked network between polyethylene glycol diacrylate; the third network is a cross-linked network between the modified gelatin and the polyethylene glycol diacrylate. The invention also discloses a preparation method of the gelatin hydrogel. By using an ultraviolet light catalytic crosslinking technology, the modified gelatin is cross-linked with the polyethylene glycol diacrylate; the gelatin hydrogel is obtained through preparation. The gelatin hydrogel provided by the invention has the advantages that the elasticity modulus and the degrading performance of the support frame can be regulated and controlled through changing the modification degree of the modified gelatin and the addition quantity of the polyethylene glycol diacrylate; the structure regulation can be better performed according to the requirements of different tissue engineering support frames; the proper space and the intensity can be provided for the growth of the cells; the ordered space structure is formed.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Device for optically generating radar pulse compression signals

The invention discloses a device for optically generating radar pulse compression signals. The device comprises a laser, a coding signal generator, a microwave signal generator, a polarization multiplexing double-parallel Mach-Zehnder modulator, a direct-current power supply, a photoelectric detector, a polarizer and a polarization controller; and, by utilization of the frequency-shifting characteristic and the phase modulation characteristic of the polarization multiplexing double-parallel Mach-Zehnder modulator, after being coupled through the polarizer, polarization orthogonal modulated optical carrier signals and unmodulated optical first-order sideband signals output by the polarization multiplexing double-parallel Mach-Zehnder modulator are detected through the photoelectric detector, so that phase coded or linearly frequency-modulated radar pulse compression signals can be generated. On the basis of the integrated modulator structure, the device disclosed by the invention is simple in system composition and steady in performance; and, the following disadvantages can be overcome: the traditional manner of generating pulse compression signals in the electric domain is limited by the rate and the bandwidth of an electronic device; high-frequency signals are generated difficultly or cannot be generated; the time-bandwidth product is limited; the reconfigurability and the frequency adjustability of the system are poor, etc.
Owner:EAST CHINA NORMAL UNIV

Cloning, expression and application of Lactobacillus brevis glutamate decarboxylase gene

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.
Owner:NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG

Water purifying and sterilizing disinfectant

The invention discloses a water purifying and sterilizing disinfectant, which comprises the following components: a potassium monopersulfate triple salt, a peroxide activation catalyst and an active halide preparation, wherein the mass ratio of the potassium monopersulfate triple salt to the peroxide activation catalyst is 500:1 to 5,000:1; and the mass ratio of the potassium monopersulfate triple salt to the active halide preparation is 1:1 to 10:1. The disinfectant has high water toxic matter removal capacity and high microorganism killing performance, avoids damaging human beings, animals and ecological environment, overcomes the drawbacks of relatively low oxidability, large using amount and generation of a large amount of by-products of chlorine, the drawbacks caused by the extremely short acting period and relatively high oxidability of ozone, has an extremely high sterilizing capacity that helps to reduce the using amount and acting period. And the disinfectant is free from residue and odor and is high in stability and extremely low in use cost.
Owner:CHENGDU ROSUN DISINFECTION PHARMA

Preparation method for a porous graphene microelectrode and applications

The invention discloses a preparation method for a porous graphene microelectrode and applications. The provided method is a one-step electrodeposition method, namely, oxidized graphene is subjected to electrochemical reduction into graphene, and the graphene is assembled on Pt wires at the same time. The employed Pt has a high conductivity, and the graphene has excellent conductivity and good biocompatibility. Thus the obtained graphene microelectrode has a porous structure, the internal cavity and pores are interlaced mutually and a three-dimensional structure is formed. Because the graphene microelectrode has a porous structure, after the glucose oxidase is fixed, direct electrochemistry of the enzyme can be achieved and the porous graphene microelectrode can be used for rapid electrochemical measurement of glucose directly. The sensor has good stability and a long service life.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Method for reducing exhausted carbon dioxide by using microalgae

The invention relates to a method for reducing exhausted carbon dioxide by using microalgae, and solves the problems of high treatment cost, large energy consumption, poor environmental protection and the like in the prior process for reducing exhausted carbon dioxide. The invention adopts a technical proposal that the method comprises the following steps: removing dust, washing, pressurizing and adjusting industrial exhausted gas containing CO2 to obtain gas to be treated meeting microalgae requirement; and carrying out microalgae conversion for the gas to be treated to fix the CO2 and reduce the concentration of the CO2 in the exhausted gas. The method has the advantages of simple process, simple and convenient operation, low treatment cost, less energy consumption and environmental protection; and the rate of reducing the exhausted CO2 in the industrial exhausted gas can reach over 50 percent.
Owner:武钢集团有限公司 +1

Preparation method and application for iron oxyhydroxide

The invention belongs to the technical field of preparation of metal oxyhydroxides, and specifically relates to a preparation method and an application for iron oxyhydroxide. The preparation method comprises the following steps: under the condition of supergravity, mixing a Fe2+ metal salt solution with an alkaline solution, and allowing oxygen to reversely contact with a reaction solution at thesame time so as to obtain a mixed reaction slurry; subjecting the mixed reaction slurry to gas-liquid separation, and subjecting an obtained liquid to aging under the conditions of stirring and bubbling oxidation so as to prepare a suspension containing the iron oxyhydroxide; and subjecting the suspension to liquid-solid separation, and subjecting an obtained solid phase to washing and drying so as to obtain the iron oxyhydroxide. According to the invention, the precipitation process and the bubbling aging process of a supergravity reaction are performed in different reactors, so the processesof crystal nucleus generation and crystal nucleus growth are separated; through adjustment of parameters of temperature, time and stirring degree in bubbling aging, the environment of crystal nucleusgrowth is controlled; and preferably, nanoscale or submicron iron oxyhydroxide can be prepared, and has the characteristics of small average particle size, large specific surface area and uniform particle size distribution.
Owner:FUZHOU UNIV +1

Method for processing porous starch through dual-frequency ultrasonic assisted acid hydrolysis

The invention relates to a method for processing porous starch through dual-frequency ultrasonic assisted acid hydrolysis, belonging to the field of modified starch processing. The method comprises the steps of: by taking starch (such as corn starch, sweet potato starch, mung bean starch, chickpeas starch and pea starch) as raw materials, preparing starch milk by using a hydrochloric acid solution with a certain concentration, putting the starch milk in a dual-frequency ultrasonic reactor for ultrasonic processing, stirring continuously, stopping ultrasonic after reaction for a certain time, adjusting the pH value to be neutral by using a saturated sodium carbonate solution, repeatedly centrifugal washing, drying, and grinding to obtain a porous starch product. The porous starch provided by the invention has deep and dense pores with uniform pore size, the pore volume accounts for above 70% of the particle volume, and the porous starch is strong in adsorbability, short in production cycle and low in processing cost, and can be widely applied in the fields of foods, medicine and health care, agriculture, paper making, printing, cosmetics, detergents and the like.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Preparation method of corn porous starch

The invention discloses a preparation method of corn porous starch. The preparation method comprises adding a disodium hydrogen phosphate-citric acid buffer solution into raw corn starch, carrying outmixing to obtain starch milk, preheating the starch milk, adding glucoamylase and alpha-amylase into the starch milk, carrying out enzymatic hydrolysis along with intermittent ultrasonic treatment, then adding a NaOH solution to stop the reaction, washing the enzymatic hydrolysis product through distilled water until pH of 7, carrying out suction filtration, putting the filtrate into an oven, carrying out natural drying and carrying out crushing to obtain corn porous starch. The corn porous starch contains uniform pores, has moderate pore depth, integrated particles and strong adsorptivity and can be widely used in the fields of foods and medicines.
Owner:ZHEJIANG SHUREN UNIV

Laminating device and integrated die laminating device

The invention discloses a laminating device. The laminating device comprises a diaphragm conveying mechanism for discharging and conveying rolled diaphragms; a positive electrode feeding mechanism which is used for continuously conveying single positive electrode plates; a negative electrode feeding mechanism which is used for continuously conveying single negative electrode plates; a laminating mechanism which reciprocates between the positive electrode feeding mechanism and the negative electrode feeding mechanism and receives the diaphragms, the positive electrode plates and the negative electrode plates, so that the diaphragms are pressed on the laminating mechanism and then move along with the laminating mechanism to form a Z-shaped diaphragm, wherein the positive electrode plates andthe negative electrode plates are alternately laminated on the Z-shaped diaphragm to form a Z-shaped laminated sheet; a diaphragm cutting mechanism which is used for cutting off the diaphragm supplyof the diaphragm conveying mechanism to the laminating mechanism after the laminating mechanism finishes laminating; and a rubberizing mechanism which is used for rubberizing the Z-shaped laminated sheet to form a battery cell. The defects of low speed and high labor intensity of manual feeding are overcome, the production cost is reduced, the lamination efficiency is improved, and modern automatic production integrated with die cutting and lamination is realized.
Owner:哈工大机器人(中山)无人装备与人工智能研究院

Quick heating and gasifying test device and application thereof

ActiveCN103293177AGet gasification propertiesRapid heating and gasificationInvestigating phase/state changeSolid carbonBiochemical engineering
The invention relates to a quick heating and gasifying test device; the middle part of a reaction tube (3) is positioned in a tubular electric heating furnace (4); an air inlet hole (6) is formed in the bottom end of the reaction tube (3); a filler layer (7) is arranged in the lower part of the reaction tube (3); a cooling water device (10) is arranged outside the reaction tube (3) on the tubular electric heating furnace (4); a charging valve (2) is arranged on the reaction tube (3) on the cooling water device (10); an air outlet hole (1) is formed in the charging valve (2); a side air outlet hole (9) is formed in the reaction tube (3) between the cooling water device (10) and the charging valve (2); a thermocouple (8) is arranged in the middle of the reaction tube (3) on the filler layer (7). The quick heating and gasifying test device is simple in structure, convenient to operate, and suitable for quickly heating and gasifying various solid carbon-containing matters such as coal and petroleum coke in various atmospheres at a certain temperature; the device also has the advantages of continuously measuring a gasified product and automatically recording the gasification reactivity.
Owner:SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI +1

Synthetic fiber modified pavement asphalt and its preparing process

The invention disclosed a kind of asphalt material that is used in paving the highway as well as its preparing method, especially a kind of synthon reshaped asphalt as well as its preparing method which belongs to the high polymer material domain. The ingredient of the asphalt includes 30-98.95wt% of synthon, 0.5-60wt% of way asphalt, 0.05-3wt% anti-oxidant and 0.5-30wt% of filling. After previously mix the materials, charge them into the high speed shearing device, shearing the material at 80-220 DEG C for 3-120min to prepare the product. Because of the high speed shearing device and the add of fillings such as talcum powder, during the melting, shearing, leveling, mixing and dispersing process of the materials, the invention has overcome the problem of tangling of the synthon; because of the antioxidant, the comprehensive qualities of the asphalt concrete has been substantially improved. The preparing procedure is simple, practical, and needs low investment and operating cost which is easier to be extended and universalized.
Owner:SUZHOU UNIV +1

Synthesis method of SAPO-34 type molecular sieve of CHA structure and obtained MTO (Methanol To Olefins) catalyst

The invention discloses a synthesis method of a SAPO-34 type molecular sieve of a CHA structure and an obtained MTO (Methanol To Olefins) catalyst, belongs to the technical field of molecular sieve materials and aims to solve the technical problem that a conventional hydrothermal synthesis method is long in crystallization time and slow in synthesis velocity in SAPO-34 type molecular sieve synthesis. According to the technical scheme, on the basis that the SAPO-34 type molecular sieve is synthesized by using the hydrothermal synthesis method, after a phosphorus source is mixed with deionized water and before an aluminum source is added, acetylacetone, which is used as an aid, is added into the synthesis system, and then the synthesis velocity of the SAPO-34 type molecular sieve is increased. The SAPO-34 type molecular sieve prepared with the method can be effectively applied to MTO processes.
Owner:GUANGDONG SITONG GROUP

Preparation method and application of bimetallic Prussian blue analogue catalyst

The invention discloses a preparation method and application of a bimetallic Prussian blue analogue catalyst. According to the catalyst, a surfactant, potassium ferricyanide and rare earth metal cerium salt are used as precursors, and a bimetal Prussian blue analogue structure rich in unsaturated active sites is grown by adopting a one-step method through regulation and control of parameters such as time, pH (Potential of Hydrogen), a solvent and temperature; by adopting the catalyst, hydrogen peroxide can be efficiently activated and refractory organic matters in water can be removed under visible light and near-neutral conditions; furthermore, the catalyst gives full play to the multi-effect synergistic effect of unsaturated active sites, photon-generated carriers and bimetallic redox pairs, and successfully overcomes the problems of slow iron circulation rate, low hydrogen peroxide utilization rate and the like in the traditional Fenton oxidation process; besides, the catalyst is prepared from iron salt and cerium salt which are rich in reserves and low in cost through a one-step method, has the advantages of being high in activity and stability, environmentally friendly and the like, and is wide in application prospect.
Owner:NANJING UNIV

Low-frequency damping visco-elastic material

The invention relates to a low-frequency damping visco-elastic material which is a low-frequency vibration high-energy consumption visco-elastic material used in civil engineering structures, high-voltage transmission systems, machinery, vehicle shock (vibration) reduction projects. The visco-elastic material is prepared by mixing by using a main body rubber, a reinforcing system, a vulcanization system, an anti-aging system, and a softening-plasticizing system. As a result of large amounts of tests, the low-frequency damping visco-elastic material has good energy consumption and anti-aging performances under an application environment with a frequency of 0.1-10Hz and a temperature of -20 DEG C to 50 DEG C. Loss factor is 0.5-1.0, and a durability life reaches 80 years.
Owner:东南大学常州研究院

A moving target motion track prediction method based on hyper-spectrum and an autonomous tracking method

PendingCN109712169ARealize autonomous tracking measurementOvercome widthImage analysisColor/spectral properties measurementsComputer visionOrbit
The invention relates to a moving target motion track prediction method and an autonomous tracking method based on hyper-spectrum, and the method comprises the steps: carrying out the rapid hyper-spectrum abnormity detection of the hyper-spectrum detection data of a target prediction region through an on-orbit real-time processor, and determining the possible position of a target according to a detection result; according to the obtained possible position of the target, fitting the movement track of the associated target by adopting a least square curve method, removing the movement position of the false alarm target, and determining the real position of the current target; and according to the determined current target position, fitting the associated target motion track by adopting a least square curve method, and predicting the possible position of the target at the next moment according to the target motion track. The hyperspectral-based moving target motion track prediction methodis adopted, the problems that the scanning breadth and the scanning rate are insufficient when a hyperspectral imager conducts autonomous tracking on a moving target are solved, and autonomous tracking measurement on the moving target is achieved.
Owner:SHANGHAI SATELLITE ENG INST

Method for treating UF permeation liquor during membrane extraction of water-soluble fertilizer containing humic acid from landfill leachate MBR+NF concentrated solution

The invention belongs to the field of treatment of landfill leachate and particularly relates to a method for treating UF permeation liquor during membrane extraction of a water-soluble fertilizer containing humic acid from a landfill leachate MBR+NF concentrated solution. Refractory organics in the UF permeation liquor are decomposed through catalytic ozonation, a part of the organics are directly inorganized, a part of the organics are converted into floc and removed through coagulation sedimentation and sand filtration, and a part of the organics are converted into degradable organics and further purified through a biological aerated filter; ammonia nitrogen produced in the oxidation process and total nitrogen in the UF permeation liquor are purified through the biological aerated filter, finally, effluent meets standards and is discharged, and the secondary pollution problem during resource utilization of humic acid in the leachate MBR+NF concentrated solution is solved. The method is advanced, practical, economical and free of secondary pollution.
Owner:FUZHOU URBAN CONSTR DESIGN RES INST CO LTD +1

Novel cryo-scanning electron microscope sample table and sampling method

The invention discloses a novel cryo-scanning electron microscope sample table, which comprises a base, lower sample tubes and upper sample tubes, wherein a plurality of sample mounting grooves are formed in the base and vertically penetrate through the upper side surface and the lower side surface of the base; the lower sample tubes and the upper sample tubes are identical in size and matched innumber, the flat ends of the lower sample tubes and the flat ends of the upper sample tubes are in butt joint pairwise and then inserted into the sample mounting grooves, and the inner diameter of theupper ends of the sample mounting grooves is smaller than the outer diameter of the flat ends of the lower sample tubes; and the base is further provided with an adapter for transferring the base toa cooling table in a sample preparation cabin of a freezing transmission system and realizing fixation. The novel cryo-scanning electron microscope sample table is suitable for scanning electron microscope observation and analysis of various liquid, semi-liquid or foam samples, and has the advantages of simple structure and convenience in use and operation; the samples are directly in contact witha refrigerant, the freezing rate is high, and the generation of ice crystals is avoided or reduced; and a plurality of samples are simultaneously introduced, so that the working efficiency is high and the applicability is wide.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

A bridge crane reliability optimization design method

The invention discloses a bridge crane reliability optimization design method which comprises the following steps: S1, defining uncertain structure parameters in a crane, and describing the uncertainparameters as interval variables; S2, establishing a limit state function according to the structural failure form, and solving a reliability index in the optimization model by adopting a Vparalove function in MATLAB based on an interval analysis method; S3, introducing a non-probabilistic reliability index, and establishing a non-probabilistic reliability optimization design model by taking a given required reliability index as a constraint condition; S4, solving an optimization problem;. According to the method, the reliability index can be effectively, quickly and accurately solved; Secondly, the common defects of low iteration rate, low optimization precision, large storage space and the like of an optimization algorithm in the actual solving process are considered; On the basis of researching a traditional moth flame algorithm, the method is effectively improved, and the convergence rate and the convergence precision of the outer layer optimizer are remarkably improved. And the method has an important value in structural reliability optimization design in engineering practice.
Owner:ZHUZHOU TIANQIAO CRANE

Zigbee wireless communication device

ActiveCN101969318AOvercoming the short communication distanceOvercome distanceNetwork topologiesTransmissionEngineeringSingle chip
The invention discloses a Zigbee wireless communication device, which comprises a CC2530 single chip, an antenna, a crystal oscillator with the frequency of 32MHz and a terminal, wherein in the CC2530 single chip, an RFN end and an RFP end are connected with the antenna; a P2.3 end and a P2.4 end are connected with the crystal oscillator with the frequency of 32MHz; and a P0.2 end and a P0.3 end are connected with the terminal. The Zigbee wireless communication device can overcome the defects of short communication distance, low communication speed, low penetrating power and the like in the prior art so as to achieve the advantages of long communication distance, high communication speed and high penetrating power.
Owner:WUXI XINJIE ELECTRICAL

Underwater communication system

The invention discloses an underwater communication system, which comprises a sender and a receiver, wherein the sender consists of a first power module, a sensor signal detection module, an MCU maincontrol module and a light emission module; the sensor signal detection module is connected with a monitoring unit of the MCU main control module through a serial port; the light emission module is connected with a data output / input unit of the MCU main control module through a serial port; the receiver consists of a second power module, a signal processing module, a light receiving module and a decoding modulator; the output end of the light receiving module is connected with the input end of the signal processing module; and the output end of the signal processing module is connected with the input end of the decoding modulator. The underwater communication system overcomes the shortcomings that an acoustic wireless scheme is extremely narrow in bandwidth and attenuation of electromagnetic waves of relevant bands for ground bandwidth wireless transmission in water is too large.
Owner:四川久久合创信息技术有限公司

Unmanned aerial vehicle testing platform

The invention relates to the technical field of unmanned aerial vehicles and discloses an unmanned aerial vehicle testing platform. The unmanned aerial vehicle testing platform comprises a flange plate, a rotating bearing, a base and a conductive slip ring. A mounting hole is formed in the flange plate and used for mounting an unmanned aerial vehicle; the flange plate is rotationally mounted on the base through the rotating bearing; the conductive slip ring comprises a rotor end and a stator end; and the rotor end is electrically connected with the unmanned aerial vehicle; and the stator end is connected with the base. Through the rotating of the rotating bearing, degree of freedom needed to test yawing movement is provided for the unmanned aerial vehicle; the unmanned aerial vehicle is inwire connection with a power supply and signal receiving device through the conductive slip ring so that the unmanned aerial vehicle gets rid of limitation of limited battery capacity and overcomes defects that the wireless transmission speed is low and the unmanned aerial vehicle is easy to be interfered; and therefore, the unmanned aerial vehicle can efficiently and accurately transmit and receive information; and the rotor end and the stator end of the conductive slip ring can relatively rotate to avoid bending distortion of a transmission lead. According to the unmanned aerial vehicle testing platform, an efficient and reliable testing platform is provided for the yawing movement of the unmanned aerial vehicle; and moreover, the structure is simple, the operation is convenient, and the practicability is very high.
Owner:WUHAN UNIV OF SCI & TECH

Sulfur-containing benzophenone modified hyperbranched self-initiation light-curable resin

The invention relates to sulfur-containing benzophenone modified hyperbranched self-initiation light-curable resin and a preparation method thereof. The self-initiation UV resin provided by the invention takes TMP as a core, has a hyperbranched three-dimensional structure, and contains a plurality of functional active groups, a plurality of sulfur-containing benzophenone photo-initiation groups and a plurality of branched chain bulk alkane groups. The resin has pigment bearing performance, high solid content, low viscosity and storage stability. The self-initiation efficiency is high, and the defects of low curing rate, easy yellowing of a coating, surface migration, strong volatility, large heat loss, generation of harmful substances and pungent smell and the like of an additional BP initiator are overcome. The sulfur-containing benzophenone hyperbranched self-initiation light-curable resin prepared by the invention has excellent flexibility, adhesive force, chemical resistance, heat resistance, aging resistance, oil resistance, wear resistance, pollution resistance and impact strength, is odorless in coating, and can be used for UV colored floor coatings, UV wood coatings, UV alloy coatings, UV circuit board ink, UV plastic coatings and the like.
Owner:SHAOGUAN HEZHONG CHEM CO LTD +1

Method for strengthening short-cut nitrification reactor by embedded cathode dynamic membrane

The invention relates to a method for strengthening a short-cut nitrification reactor by an embedded cathode dynamic membrane. The method comprises the following steps: preparing a continuous flow reactor, successfully domesticated short-cut nitrification sludge, a dynamic membrane assembly, an iron plate, an electrochemical workstation, a water inlet tank, a peristaltic pump, an aeration pump, a differential pressure gauge and a water outlet pump; installing the dynamic membrane assembly in the continuous flow reactor, adopting a stainless steel lining as a cathode in the dynamic membrane assembly, adopting the iron plate as an anode, and respectively connecting the cathode and the anode with the electrochemical workstation; arranging the aeration pump in the continuous flow reactor, and adding the short-cut nitrification sludge; enabling the continuous flow reactor to operate in a continuous water inlet mode, controlling high ammonia nitrogen load and low dissolved oxygen concentration of inlet water, performing intermittent aeration in different periods, and controlling the aeration intensity; and enhancing the operation effect of the reactor by combining an electrochemical means of controlling current and electrifying time, increasing the content of bacteria related to short-cut nitrification, and reducing the membrane pollution rate. The method is beneficial to reducing the membrane pollution rate and prolonging the membrane operation cycle.
Owner:福建省环境科学研究院福建省排污权储备和技术中心

Remote sensing image weak and small target fusion multi-level feature target detection method

The invention relates to a remote sensing image weak and small target fusion multi-level feature target detection method, and the method improves the detection precision of a remote sensing image weak and small target through an end-to-end target detection network based on a convolutional neural network and the multi-level features of the remote sensing image weak and small target. The invention provides a detection method for weak and small targets based on the characteristics of small size, such as dozens of pixels and weak characteristics of the weak and small targets of remote sensing images in actual engineering. According to the method, target features are extracted layer by layer through a convolutional neural network, cross-level channel fusion target features, position attention mechanism aggregation target features and double-branch feature map prediction targets are performed, and an end-to-end target detection network is formed, so that the purpose of performing high-precision and high-speed detection on weak and small targets in remote sensing images is achieved. Experiments show that the recall ratio and precision ratio of remote sensing image weak and small target detection can be effectively improved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Live television and multimedia information publishing system and method

The invention discloses a live television and multimedia information publishing system and method, and the system comprises DTMB receiving equipment, signal conversion equipment, an information publishing terminal, and a cloud server. The output end of the DTMB receiving equipment is connected with the signal conversion equipment; the output end of the signal conversion equipment is connected withthe information publishing terminal; the cloud server is connected with the signal conversion equipment; the signal conversion device communicates with the information publishing terminal in a WIFI mode. Meanwhile, the invention further discloses a live television and a multimedia information publishing method. According to the invention, WIFI communication is set between the signal conversion equipment and the information publishing terminal, and fourth-generation communication or higher-level wireless transmission standard communication is set between the cloud server and the signal conversion equipment. The technical problems of low live television information and multimedia information transmission rate, complex wiring process and high cost in the prior art are solved, and the beneficial effects of high transmission rate, easy wiring operation and low cost are achieved.
Owner:深圳城视互联科技有限公司

Wireless real-time transmission node type seismograph system and synchronous calibration method

The invention relates to a wireless real-time transmission node type seismograph system, which comprises at least one first-level acquisition network, a second-level network wireless control host and a control terminal which are connected in series, and is characterized in that each first-level acquisition network comprises a first-level network wireless control host and a plurality of wireless node instruments connected with the first-level network wireless control host; and after the second-level network wireless control host collects data collected by the first-level network wireless control hosts, the data are forwarded to the control terminal in real time through a high-speed network interface of the second-level network wireless control host, and the control terminal displays and stores seismic data in real time. The invention also designs a method for carrying out synchronous calibration by adopting the wireless real-time transmission node type seismograph system. According to the wireless real-time transmission node type seismograph system and the wireless real-time transmission node type seismograph system, the application range and the construction efficiency of a wireless seismic acquisition system are greatly improved, and wireless real-time acquisition and transmission of seismic data are realized.
Owner:湖南奥成科技有限公司

High-frame-rate video SAR (Synthetic Aperture Radar) real-time imaging processing device and method

The invention discloses a high-frame-rate video SAR (Synthetic Aperture Radar) real-time imaging processing device and method, and the method comprises the steps: generating an intermediate frequency analog signal, and processing the intermediate frequency analog signal to obtain a transmitting signal; performing down-conversion processing and signal acquisition preprocessing on the echo signal to obtain a zero-intermediate-frequency baseband signal; the signal is divided into two paths of same data, one path is used for data storage, and the other path is used for real-time imaging processing; and the real-time signal processing module receives a path of zero intermediate frequency baseband signal, and the signal is subjected to range direction FFT, range direction dechirp, range-Doppler algorithm, motion error estimation and compensation processing to obtain a real-time imaging result. According to the high-frame-rate video SAR real-time imaging processing device and method, in the signal processing process, parallel processing is adopted for algorithms, hardware system design is optimized at the same time, the correctness of algorithm processing and the high efficiency of division are guaranteed, the algorithm is matched with a hardware system, and the real-time imaging processing efficiency is improved. And a basis is provided for airborne and satellite-borne real-time imaging of the video SAR and subsequent target detection and tracking.
Owner:XIDIAN UNIV

Wood flexible combined machining system based on network control

ActiveCN103692528AReal-time unified controlReal-time independent modification controlWood working apparatusNumerical controlControl system
The invention discloses a wood flexible combined machining system based on network control. The wood flexible combined machining system comprises multiple sets of wood flexible combined machining devices, a vision sensor and a network control system. According to the wood flexible combined machining system disclosed by the invention, multiple sets of wood machining devices which are in independent work are connected together through a network, accurate, efficient and fully-automatic control on each set of combined type work machining devices through an embedded type programmable memorizer numerical control technology, and the defects that a general wood machining device has poor manual control operability and low machining accuracy, and the independent working efficiency of each machine device is low are overcome.
Owner:SOUTH CHINA AGRI UNIV
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