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175results about How to "Achieve innovation" patented technology

Moderate and high strength large-thickness component electromagnetic controlling narrow gap or ultra-narrow gap pulse efflux molten electrode gas-shield welding method and equipment

The invention relates to a gas shielded welding method and device of a narrow gap or a super-narrow gap impulse jet current consumable electrode controlled by electromagnetic of the heavy section part with middle and high strength. The invention uses a magnetic coil (3) to provide excitation current processed by an excitation source, which can generate an extra magnetic field. Under the conditions of narrow gap or super-narrow gap, high feed rate, fused drop spray transfer and impulse welding current, the process of the gas shielded welding of the rotating jet current consumable electrode with high-melting frequency pulse that is controlled by the electromagnetic for the heavy section part with middle and high strength can be realized. The device of the invention comprises the excitation source, excitation equipment, auxiliary equipment and a water cooling system. The excitation equipment is the magnetic coil (3) with or without a conducting core (5). The excitation equipment is fixed on a welding burner (6), which is positioned above a work piece (9). The excitation current provided by the excitation source (10) produces stationary or time-varying electromagnetic mixing magnetic field that has the combination control over the processes of arc welding, wire burn-off, drop transfer, melting bath flow and welding line coagulation, which finally forms the welding line of good quality.
Owner:CHONGQING UNIV

A type foot-and-mouth disease recombinant vaccine strains and preparation method and application thereof

ActiveCN103266091AMultiple phenotype improvements and enhancedPhenotype Improvement and EnhancementMicroorganism based processesAntiviralsAntigenDisease
The invention relates to A type foot-and-mouth disease recombinant vaccine strains prepared by using a reverse genetic manipulation technology and a preparation method and application of the strains. One strain is an A type foot-and-mouth disease recombinant vaccine strain with high titer, antigen matching property and immune protection rate, and the other strain is an A type foot-and-mouth disease recombinant non-pathogenic vaccine strain with high titer, antigen matching property and immune protection rate and without pathogenicity for a host; an antigen nucleotide sequence of each of the vaccine strains is shown as SEQ ID NO: 1; eukaryotic plasmids of viruses can be saved by using a reverse genetic manipulation system; after pigs and cattle are immunized by using the inactivated vaccines prepared from the prepared recombinant vaccine strains, the bodies can be effectively stimulated to produce immune response, and an immune protection effect is provided for the bodies of the pigs and the cattle; through a 10,000-times cattle median infectious dose (BID50) challenge assay of A type AISA topological strains, the immune protection rate reaches 100 percent, and the median protective dose (PD50) is 10.81 to 13.59; and the recombinant vaccine strains can be applied to prevention and control of A type foot-and-mouth disease viruses of China and neighboring countries.
Owner:LANZHOU INST OF VETERINARY SCI CHINESE ACAD OF AGRI SCI

Digital simplified molding process for sculpture sample manuscript

InactiveCN101274577ALow costCompact process stepsOrnamental structures3D modellingGraphicsEngineering
The invention relates to a manufacturing process of a sculpture sample, in particular to a digitized simple shaping manufacturing process of the sculpture sample, which solves the problems that the traditional manual realistic sculpture technique can not precisely grasp the space structure and the positions of the characteristics of the archetype of a sculpture, and the existing fast shaping art can not be directly applied to the sculpture field, and comprises the following steps that: 1. collecting the three-dimensional data of the sculpture archetype; 2. building a three-dimensional digital model of the sculpture archetype through the three-dimensional data obtained from step 1; 3. conducting a layered cutting process to the three-dimensional digital model obtained from step 2; 4. conducting a complanation process to the three-dimensional contour line data obtained from step 3, then generating a plane profile graphics file; 5. conducting an entity ply process and a structural combination process to the plane profile graphics file obtained from step 4; 6. shaping a plastic sculpture sample. The process steps of the invention are compact, reasonable, scientific and practical; equipment adopted by the manufacturing process is mature, the production costs are lower, the application range is wide, and the development potential is huge.
Owner:徐鸿斌

Method and equipment for electromagnetic composite double-face submerged arc welding of diphase stainless steel thick plate

The invention discloses a method for welding a dual-phase stainless steel and a device thereof. The method comprises: dual-side surfacing of heavy current submerged arc is controlled by an electromagnetic-composite field of the dual phase stainless steel of heavy plates without a grooveb; excitation current is provided by an excitation power supply to generate an additional longitudinal electromagnetic field; and a submerged arc welding process of the dual-phase stainless steel of the heavy plates without the groove is comprehensively controlled and realized by the electromagnetic field. The welding device is provided with the excitation power supply, a welding power supply, an excitation welding device, a device of an auxiliary electric field and a water cooling system. The excitation device consists of excitation coils, is fixed on a welding torch, and generates the additional longitudinal electromagnetic field which is coaxial with the welding torch, and the water cooling system is arranged in a bracket of the excitation coils. The device can realize the submerged arc welding of the dual-phase stainless steel of the heavy plates without the groove, with high efficiency, high quality and low cost through the electromagnetic-complex submerged arc welding; meanwhile, the device can be used for welding the dual-phase stainless steel of the heavy plates in industries, such as shipbuilding, chemical industry and so on.
Owner:CHONGQING UNIV

Asia1 type foot-and-mouth disease recombinant virus and preparation method and application thereof

The invention relates to an Asia1 type foot-and-mouth disease recombinant virus without pathogenicity for a host and a preparation method and application thereof. A saving system is efficient eukaryotic plasmids which are constructed by gene engineering and can express exact foot-and-mouth disease virus genome RNA (Ribonucleic Acid), and therefore the foot-and-mouth disease recombinant virus can be constructed and prepared; vaccine strains with high titer and good antigen matching property can be prepared by using the plasmids, can be prepared into live vaccines or inactivated vaccines and can effectively stimulate bodies to produce immune response after being used for immunizing pigs and cattle, provide an immune protective effect on the pigs and the cattle and effectively protect GV and GII prevalent strains, the immune protection rate can reach 100 percent, and the median protective dose (PD50) is 6.34 to 13.59; and the recombinant virus has the advantages of high titer, high antigen matching property with the prevalent strains, wide antigen spectrum and high immune protection rate, does not have pathogenicity for pig and cattle hosts, does not form toxemia or expel toxin, and can be applied to prevention and control of Asia1 type foot-and-mouth disease viruses of China and neighboring countries.
Owner:LANZHOU INST OF VETERINARY SCI CHINESE ACAD OF AGRI SCI

Professional skill training auxiliary teaching system with closed-loop deviation rectification control of deviation automatic feedback data and auxiliary teaching method

The invention discloses a professional skill training auxiliary teaching system with closed-loop deviation rectification control of deviation automatic feedback data and an auxiliary teaching method.The system comprises an intelligent training teaching material, a special facility for skill training, a field information acquisition device, a system server and an auxiliary teaching terminal. The method, with the intelligent training teaching material as a navigation, obtains resources of a related subject training or determines an operation track process of a training subject by scanning or touching a different ID identity in the teaching material. The method subdivides a skill training process into a recognizable track data acquisition point, and generates deviation feedback information by comparing similarities of the subdivided operation data of a learner and a demonstrator, thereby realizing a closed-loop derivation rectification control process of data with the ID identity as a link: "starting subject training - acquiring data in a training process - comparing similarities of template data - tracking and evaluating the training process - pushing a suggestion for deviationrectification - acquiring learning and observation material associated with ID - restarting the subject training".
Owner:石虹

Filter core for environment-friendly type air purifier

The invention discloses a filter core for an environment-friendly type air purifier, and belongs to the field of air purifiers. The filter core comprises a housing, a supporting layer, a preliminary filtering layer, a microfiltration layer and a nanofiltration layer; the supporting layer is used to support the housing structure; the preliminary filtering layer is used to intercept large-granule suspended matter in air; the microfiltration layer is used to separate micrometer-size particles in air, and comprises two micrometer fibrous layers both prepared from a chitosan solution through an electrostatic spinning technology, a micrometer fibrous filter membrane which is sandwiched between the two micrometer fibrous layers and is doped with a photocatalyst; and the nanofiltration layer is used to remove nanometer-level dust particles in air and also adsorb heavy metal ions and decompose organic harmful gases and inhibit bacteria, and is a nanometer fibrous layer prepared from a chitosan solution through an electrostatic spinning technology. According to the technical scheme, multi-layer structure design is employed, the material characteristics are ingeniously combined, and thus the filtering effect of the filter core is substantially optimized, and air purification effect is enhanced.
Owner:MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS

Intelligent floor sweeping garbage can

PendingCN105775480AIntuitive real-time remote monitoringImprove safety and reliabilityRefuse receptaclesEngineeringAutomation
The invention relates to an intelligent floor sweeping garbage can. The intelligent floor sweeping garbage can comprises a can body, and a can cover arranged on the can body; and the can body includes an inner can and an outer can. The intelligent floor sweeping garbage can is characterized in that a first walking mechanism provided with a first driving part, a sweeping mechanism provided with a dust collecting box and a second driving part and a floor mopping mechanism provided with a lifting part are mounted at the bottom of the can body; the upper end of the dust collecting box is communicated with the inner can of the can body through a garbage transportation pipe; a dust absorbing mechanism is arranged on the garbage transportation pipe; a camera is mounted on the outer side surface of the garbage can, and is connected with user equipment through a wireless communication module; a controller is mounted on the garbage can; an input end of the controller is connected with the user equipment through the wireless communication module; and an output end of the controller is respectively connected with the first driving part, the second driving part, the camera, the lifting part and the dust absorbing mechanism through circuits. Compared with the prior art, the intelligent floor sweeping garbage can has the characteristics of automatic transfer of garbage to the garbage can, patrol monitoring and high intelligent automation.
Owner:QINGDAO SHENGHAODA INTELLIGENT TECH CO LTD

Cooperative interaction control system for craniotomy robot

The invention discloses a cooperative interaction control system for a craniotomy robot. The cooperative interaction control system comprises a motion limiting module, a doctor-robot interaction module, a robot-patient interaction module and a solver. The motion limiting module is used for tracking the position of the robot in real time and is compared with a limited area, so that the robot is limited within a certain area for movement. The doctor-robot interaction module is used for completing real-time speed control over the robot by doctors. In the skull milling process, the robot-patient interaction module is used for keeping a certain contact force between the tail end of a milling cutter and the bottom face of a skull and further keeping a certain drilling force in the skull drilling process. The solver is used for completing inverse kinematics resolving of the robot and further used for inputting and outputting robot motion and joint motion speeds separately so as to drive the robot to move. According to the cooperative interaction control system, the advantages that the flexibility of the doctors is high and the precision of the robot is high are integrated, operation efficiency and quality can be improved while operation safety is improved, and the craniotomy fatigue degree of the doctors is lowered.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Electromagnetic direct-drive high-speed three-wire magnetic-field compound flux copper-gasket submerged arc welding device and method thereof

The invention discloses an electromagnetic direct-drive high-speed three-wire magnetic-field compound flux copper-gasket submerged arc welding device and a method thereof. The device comprises a wire feed system, a welding power source, a magnetic field power source, a copper gasket system, a torch system, an electromagnetic compound system and a numerical control system, wherein the wire feed system is formed by integrating the rotor of the electromagnetic direct-drive rotating servomotor and the main wire feed rolls into an integral body; the torch system comprises an eccentric current contact nozzle which is divided into an upper part and a lower part; the electromagnetic compound system is integrated with the nozzle of the torch system and a water cooling system into an integral body; and the copper gasket system is an air-pressure copper-gasket one-side-welding double-side one-step molding system, the back side of which uses flux. The invention can cancel the mechanical transmission link between the traditional motor and the wire feed rolls, greatly enhances the wire feed stability and the control response precision, and eliminates the noise, oil sludge and vibration, thereby realizing the three-wire high-speed electromagnetic compound submerged arc welding one-side-welding double-side molding high-efficiency welding method. The method has the advantages of simple structure, small size, high stability and reliability, and precise numerical control, and can be used for welding huge and thick plates.
Owner:ANHUI HONGLU STEEL CONSTR (GROUP) CO LTD

Sewage treatment process for realizing sludge reduction by taking elemental sulfur as medium

The invention discloses a sewage treatment process for realizing sludge reduction by taking elemental sulfur as the medium. The sewage treatment process comprises the following steps: allowing the sewage to be treated to flow into a sulfur reduction reactor for anaerobic biological treatment, removing the organic matters in the sewage during the sulfur reduction process to produce a minus bivalence sulfide, introducing the minus bivalence sulfide into a sulfur oxidation reactor inoculated with sulfur oxidizing bacteria for reoxidizing the minus bivalence sulfide into elemental sulfur, and then allowing the elemental sulfur to reversely flow to the sulfur reduction reactor. The sulfur reducing bacteria are first applied to the field of water treatment to form various sewage treatment processes with less sludge production, thereby realizing the innovation of the sewage treatment method; in the traditional anaerobic sulfate sewage treatment process, the sulfate is used as the electron acceptor during the COD (chemical oxygen demand) mineralization, however, the process utilizes the elemental sulfur for replacing the sulfate and sulfite; and in the whole process, the equipment is simple, the energy consumption is low, and the cost is saved.
Owner:SOUTH CHINA NORMAL UNIVERSITY

Cultivation method of triploid Dendrobium officinale

The invention relates to a method for cultivating triploid dendrobium candidum. The method comprises the following steps of: (1) firstly widely collecting dendrobium candidum seed resources in which good dendrobium candbium is selected; (2) carrying out artificial mutagenesis on the selected dendrobium candbium to obtain autotetraploid dendrobium candbium; (3) carrying out sexual hybridization based on the autotetraploid dendrobium candbium as a female parent and diploid dendrobium candbium as a male parent to obtain triploid dendrobium candbium seeds; (4) carrying out non symbiosis germination culture on the triploid dendrobium candbium seeds; (5) carrying out induction and differentiation culture on the protocorms (PLBs) of the triploid dendrobium candbium seeds; (6) carrying out differentiation on triploid dendrobium candbium mature seedling; (7) transplanting triploid dendrobium candbium seedlings in bottles; and (8) carrying out cultivation management on the triploid dendrobium candbium mature seedling. In the invention, a triploid having the advantages of a polyploid and a hybrid cultivar can be obtained through genome triplication, and the triploid is giant and non substitutable; the yield of dendrobium candbium medicinal material can be greatly improved; and meanwhile, the triploid dendrobium candbium is a permanent hybrid, and hybrid vigor can be fixed.
Owner:NANKAI UNIV

Construction external scaffold deformation monitoring method

The invention discloses a construction external scaffold deformation monitoring method. The method comprises the following steps that: the BIM model of a scaffold is established according to a scaffold installation drawing; holographic three-dimensional laser scanning is performed on a mounted scaffold, and the three-dimensional point cloud data of the scaffold are acquired; the three-dimensionalpoint cloud data are processed through point cloud data processing software, so that a complete scaffold point cloud model is obtained; and fitting and analysis are performed on the scaffold point cloud model and the BIM model, so that the deviation data of the scaffold point cloud model and the BIM model can be obtained. According to the prior art, when a total station and other measuring instruments are used, two persons or a plurality of persons are required to perform pilot testing on measurement point positions, and certain measurement errors can be caused by multiple times of pilot testing, however, with the construction external scaffold deformation monitoring method of the invention adopted, the above defects in the prior art can be eliminated. When the total station and other measuring instruments are used to perform monitoring, the workload of field operation is large, monitoring cannot be realized under conditions of adverse weather, night and the like, while, a three-dimensional laser scanner is adopted to collect scaffold data in the method of the invention, and therefore, the above problem can be solved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Electromagnetic direct-drive high-speed double-wire magnetic-field compound flux copper-gasket submerged arc welding device and method thereof

The invention discloses an electromagnetic direct-drive high-speed double-wire magnetic-field compound flux copper-gasket submerged arc welding device and a method thereof. The device comprises a wire feed system, a welding power source, a magnetic field power source, a copper gasket system, a torch system, an electromagnetic compound system and a numerical control system, wherein the wire feed system is formed by integrating the rotor of the electromagnetic direct-drive rotating servomotor and the main wire feed rolls into an integral body; the torch system comprises an eccentric current contact nozzle which is divided into an upper part and a lower part; the electromagnetic compound system is integrated with the nozzle of the torch system and a water cooling system into an integral body; and the copper gasket system is an air-pressure copper-gasket one-side-welding double-side one-step molding system, and the back side uses flux. The invention can cancel the mechanical transmission link between the traditional motor and the wire feed rolls, greatly enhances the wire feed stability and the control response precision, and eliminates the noise, oil sludge and vibration, thereby realizing the double-wire high-speed electromagnetic compound submerged arc welding one-side-welding double-side molding high-efficiency welding method. The method has the advantages of simple structure, small size, high stability and reliability, and precise numerical control, and can be used for welding huge and thick plates.
Owner:CHONGQING UNIV

Aluminum electrolytic bath anode current distribution-based online measuring device and measuring method thereof

The invention discloses an aluminum electrolytic bath anode current distribution-based online measuring device and a measuring method thereof, which can solve the problem that the existing measurement mode can not truly reflect the distribution condition of the aluminum electrolytic bath anode current. The online measuring device comprises a control system, a substrate, an anode current collector, a signal transmission device, a feed mechanism, and a signal collecting device, wherein the substrate is provided with a mounting hole, the anode current collector, the signal transmission device and the feed mechanism are arranged on the substrate, the signal collecting device is arranged on the feed mechanism; and the anode current collector is connected with the control system through wireless communication. Through the scheme, according to the aluminum electrolytic bath anode current distribution-based online measuring device and the measuring method thereof, the measurement on the voltage and temperature of an anode guide rod can be measured, so that the purpose of obtaining the current distribution condition of the anode guide rod can be achieved, and by combining the practice with theories perfectly, the aluminum electrolytic bath anode current distribution-based online measuring device has the advantages of being smart in design, low in production cost, simple in flow, high in measurement accuracy, convenient to use, and high in working efficiency.
Owner:SICHUAN HUASUO AUTOMATION INFORMATION ENGCO

Teaching experiment system and experimental method suitable for communication type specialties

The invention discloses a teaching experiment system and an experimental method suitable for communication type specialties. The system comprises an experimental apparatus, communication equipment, an application server and a Web server, wherein control programs of the experimental apparatus and the communication equipment are installed on the application server for transmitting control instructions to the experimental apparatus or the communication equipment or receiving data information returned by the experimental apparatus or the communication equipment; the Web server bilaterally exchanges data with the application server through a local area network and bilaterally exchanges data with a client through the local area network or Internet; system management software is installed and a knowledge database is stored in the Web server for providing the functions of inquiring and browsing a webpage and observing and controlling experiments in real time for learners; and a plurality of relational tables of curriculum knowledge, experimental apparatus function information, communication equipment structure function information, signal protocol information and the like are established in the knowledge database, so that the inquiry requirements of the learners can be met in real time.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Method of producing solid organic carbon fertilizer

The invention discloses a method of producing a solid organic carbon fertilizer and relates to a method of producing an organic fertilizer by using a fermenting technology. The method comprises the following steps: adding concentrated liquor of biological organic wastewater which accounts for 15% of the weight of a main ingredient which is prepared from biological crushed aggregates and has a moisture content of 45-55%; then adding zymophyte powder which accounts for 0.5% of the total weight of the materials and sufficiently mixing; directly piling up to form a material fermenting pile which is 1.0-1.2m high and not turning over the pile within 6-8 days; cooling the pile; spreading out the pile and spraying the concentrated liquor of biological organic wastewater which accounts for 18-25% of the weight of the main ingredient; adding the zymophyte powder according to the last dosage and uniformly mixing; piling up to from a material fermenting pile, not turning the pile within 6-8 days, and cooling the pile; then transferring the pile and building up a braising dry pile which is 2.5-3.0m high, not turning over the pile within 20-30 days and spreading out when the pile is slowly cooled and the moisture content of the fermented materials in the pile is reduced to 30%; and crushing and packaging the fermented materials. The zymophyte powder is biologic humic acid bacterial powder or straw composting powder.
Owner:FUZHOU LYUZHOU BIOCHEM CO LTD

Preparation method of superabsorbent proton exchange membrane

The invention discloses a preparation method of a superabsorbent proton exchange membrane. The preparation method of the superabsorbent proton exchange membrane comprises the following steps: (1) stirring for mixing hollow mesoporous silica microspheres with fluorous perfluorinated sulfonic acid polymers according to a mass ratio of 1 to (9-99) to obtain a mixture; (2) adding the mixture obtained in the step (1) into an extruder for melting and extruding so as to form a membrane under the conditions that the temperature of the head of a membrane casting machine is 180-200 DEG C, the rotation speed of a screw rod is 20-35r/min and the linear speed of a roller press is 60-100cm/min; (3) putting the membrane obtained in the step (2) into 0.1-1wt% sodium hydroxide solution for soaking at the temperature of 60-80 DEG C for 4-12 hours so as to obtain a sodium perfluorinated sulfonic acid membrane; (4) putting the sodium perfluorinated sulfonic acid membrane obtained in the step (3) into 0.1-1wt% hydrochloric acid for soaking at the temperature of 20-30 DEG C for 1-6 hours, then washing the membrane with deionized water so as to obtain the superabsorbent proton exchange membrane. Compared with a membrane prepared by adopting a casting method using the solution, the superabsorbent proton exchange membrane prepared by adopting the method has higher conductivity and mechanical strength.
Owner:JUHUA GROUP TECH CENT

Method and device for cooperative flue gas desulfurization and sewage organic matter degradation and denitrification

The invention discloses a method and a device for cooperative flue gas desulfurization and sewage organic matter degradation and denitrification. Flue gas is subjected to desulfuration and purification through a spraying tower, and desulfurized waste liquid and sewage flow into a sulfite reduction reactor to be subjected to anaerobic biological treatment, so that organic matters in the sewage are degraded, and meanwhile sulfite is reduced; then the sewage and a reflux liquid in a nitration reactor are mixed, and flow into a denitrification reactor, nitrate in the sewage is reduced into nitrogen gas to realize nitrogen element removal, and sulfide in the sewage is oxidized into sulfate or elemental sulfur in an oxygen deficiency manner to realize part desulfuration; then the sewage flows into the nitration reactor again, organic matters in the sewage is further degraded, meanwhile ammonia nitrogen is oxidized into nitrate, and is removed after flowing back into the denitrification reactor; the rest sulfide is completely oxidized into sulfate, and the sewage is purified, and can be directly discharged. The average removal rate of the organic matters in the sewage is 95%, the ammonia nitrogen removal rate is 90%, the total nitrogen removal rate is above 70%, and the sulfide removal rate is 99.9%. The flue gas-sewage cooperative treatment process capable of realizing efficient flue gas desulfuration, sewage decarbonization and denitrogenation at the same time is established, flue gas desulfurized waste liquid is treated, and sewage is purified.
Owner:SOUTH CHINA NORMAL UNIVERSITY
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