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Multifunctional power distribution terminal integrated test system and operating method thereof
Owner:STATE GRID FUJIAN ELECTRIC POWER CO LTD +3
Electromagnetic induction type metal part neglected loading detection and detection method
InactiveCN101907730AGreat application valueEasy to operateElectric/magnetic detectionAcoustic wave reradiationReal time acquisitionType metal
The invention relates to an electromagnetic induction type metal part neglected loading detector which is characterized by comprising an induction device (1), a data acquisition and processing device (2) and a man-machine interaction device (3). The invention also relates to a detection method of the electromagnetic induction type metal part neglected loading device. In the invention, the moves of a metal part near an induction coil are accurately monitored in real time through identifying the changes of the induced electromotive force of the induction coil. Aiming at the change characteristics of induction signals, the invention proposes a time-domain multi-characteristic value identification method for judging signal changes, and the method comprises the following steps of: firstly, filtering out power frequency interference signals by utilizing wavelet transforms; comparing signal data acquired in real time with a reference signal according to the periodic change rule of basic signals; identifying and establishing an abnormal multi-characteristic value to reconstruct the signal data within a time-domain range; and carrying out multi-stage optimization intelligent identification and judgment after the acquisition of all characteristic values is completed. The invention can be applied to the diagnosis of the neglected loading of metal parts and realizes open type on-line detection in a non-contact and real-time mode.
Owner:CHONGQING UNIV
Method and device for welding tube type heat exchanger by using laser scanning
InactiveCN101590570AIncreased heat exchange area and heat transfer efficiencyGreat application valueLaser beam welding apparatusTubular articlesHigh power lasersContact type
The invention discloses a method and a device for welding a tube type heat exchanger by using laser scanning. Under the control of a computer program and according to tube parameters of the tube type heat exchanger, data such as laser parameters, dynamic focusing scanning control parameters, and the like is determined, and the heat exchanger components are welded and processed by adopting a laser beam deflection scanning method. The device for realizing the method comprises a high power laser, a collimated beam expander, a diaphragm with water cooling, a dynamic focusing system, an XY beam positioning scanner, a CCD photographing system, a Z-axis liftable workbench and a computer control system. The invention has the advantages that after the welded workpiece is fixed, only the focused laser beam is arranged in a determined three-dimensional processing space under the control of the computer program, and the tube type heat exchanger is subjected to non-contact type welding along a welding seam locus in a dynamic focusing laser beam scanning welding method. The invention overcomes the difficulty in the manufacturing of the tube type heat exchanger and realizes the precision manufacturing of a stainless steel ultrathin-wall tube type miniature heat exchanger.
Owner:SHANGHAI INST OF LASER TECH
Method and device for identifying small-scale geologic body through diffraction refocusing
InactiveCN104730571AEfficient separationGreat application valueSeismic signal processingKarstWave field
The invention provides a method and device for identifying a small-scale geologic body through diffraction refocusing. The method includes the steps that a reflecting interface dip angle field is obtained according to earthquake imaging data; residual earthquake data without reflecting interface information are obtained through a linear filtering operator according to the reflecting interface dip angle field obtained through the earthquake imaging data; migration velocity analysis on over-excursion or under-excursion diffracted waves is carried out again through an isolated non-completely-focused diffracted wave field with the velocity analysis method; diffracted wave refocusing is completed through the excursion algorithm according to the residual earthquake data and the residual diffracted wave excursion speed. The device corresponds to the method. By means of the method and device, the small-scale geologic body with the bead-like karst, fissures, small-scale breakage and the like which are directly related to a carbonate reservoir can be effectively isolated, and the technical effect has the good application value on evaluating an oil and gas resource reservoir in the oil industrial circles.
Owner:INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
Wireless device testing method based on wireless ad hoc network
ActiveCN102238608ASave manpower and timeGreat application valueNetwork topologiesTransmission monitoringReal-time computingProduct testing
The invention discloses a wireless device testing method based on a wireless ad hoc network. In the method, a test controller, a detecting wireless device connected with the test controller and a plurality of wireless devices to be detected are comprised in an applied hardware environment, wherein the wireless devices to be detected are respectively connected with the detecting wireless device; the test controller is used for controlling the detecting wireless device to broadcast a network grouping message to all the wireless devices to be detected; the detecting wireless device is used for allocating time slots for the wireless devices to be detected, which receive the network grouping message and then reply response messages, and testing the performances of the wireless devices to be detected in respective allocated time slots; after testing, the detecting wireless device reports the performance testing result information of all the wireless devices to be detected to the test controller; and the test controller displays the received performance testing result information. By using the wireless device testing method disclosed by the invention, the product testing speed and efficiency are greatly improved, and a large amount of time cost and manpower cost are greatly saved.
Owner:无锡感知金服物联网科技有限公司
Power grid black start-up system and black start-up participation method of photovoltaic power station
InactiveCN104836254AGreat application valueFully restore the gridSingle network parallel feeding arrangementsPhotovoltaic energy generationPower qualityBlack start
The invention discloses a power grid black start-up system and a black start-up participation method of a photovoltaic power station, which aims to recover a thermal power plant auxiliary machine system, considers power dynamic balance and a power quality problem in the black start-up process of the photovoltaic power station, adopts photovoltaic power generation equipment, an energy storage device and SVC coordination control, and ensures the feasibility of using the photovoltaic power station as a black start-up power supply through orderly inputting photovoltaic arrays. Compared with a traditional black start-up power supply, the photovoltaic power station has the advantages of short response time, quick power adjustment and economical operation. Therefore, the research on the black start-up participation method of the photovoltaic power station not only is conducive to providing a quick and efficient black start-up scheme for a power grid to deal with emergency accidents, but also is benefit for further exploring an implementation scheme of using a new energy power station as the power grid black start-up power supply.
Owner:SOUTHEAST UNIV
Breeding method of high-protein Hermetia illucens pupae
InactiveCN106305631AGreat application valueImprove survival rateFood processingAnimal feeding stuffProtein contentEcology
The invention relates to a breeding method of high-protein Hermetia illucens pupae, and belongs to the technical field of breeding. The breeding method comprises the following steps: prompting Hermetia illucens male pupae and female pupae to lay eggs; collecting Hermetia illucens eggs, and breeding to incubate larvae; breeding the larvae with kitchen waste; after breeding, cleaning; putting the bred larvae into a culture dish; adding substances such as peptone, discarded dead fish and corn flour; breeding at a controlled temperature; adding the peptone and skim milk every day till the breeding reaches a pre-pupa stage; collecting husked Hermetia illucens pupae; performing cryopreservation to obtain the high-protein Hermetia illucens pupae. The Hermetia illucens pupae bred by the method are 65 percent or above in protein content, are rich in nutrition, and have a wide application value on the aspects of facial care and foods; the breeding method has a high survival rate, and is easy to operate.
Owner:仇颖超
Preparation and application of Fe-Gd double-mode magnetic resonance contrast agent with targeting function
InactiveCN101912623AGood biocompatibilityGreat application valueNMR/MRI constrast preparationsEmulsion deliveryTumor tissueWater soluble
The invention relates to preparation and an application of a targeted nano contrast material, in particular to preparation and an application of a Fe-Gd double-mode magnetic resonance contrast agent with a targeting function. The existing clinic magnetic resonance contrast agent has the defects of no targeting and incapacity of enabling the contrast material to access into tumor cells accurately so as not to distinguish the normal tissues from the tumor tissues. The invention adopts the method that amino groups are coupled with active groups so as to enable the water-soluble Fe3O4 to have T1 and T2 double-mode imaging and targeting functions, and can realize specificity identification for tumor cells and tissues by targeted moleculars. The invention has the advantages of simple preparation method, accurate tumor diagnosis and wide applications in fields of medicine and biology, and the contrast agent has the T1 and T2 double-mode magnetic resonance imaging and targeting functions.
Owner:SHANGHAI NORMAL UNIVERSITY
Motion identification method based on human bone joint point distance
InactiveCN107392131AGreat application valueAction features are obviousCharacter and pattern recognitionColor-codingSacroiliac joint
The invention relates to a motion identification method based on a human bone joint point distance. The method comprises the following steps of (1) projecting each frame of a bone sequence on three planes of a Cartesian orthogonal system and generating a human bone distribution map; (2) extracting bone joint points in the human bone distribution map; (3) calculating a euclidean distance among the bone joints of each frame of the bone sequence and making the distances of all the joint points form frame distance vectors; (4) making all the frame distance vectors of the bone sequence form a sequence distance matrix according to a time sequence; (5) using a pseudo-color coding method to carry out color coding on a distance two-dimensional matrix and acquiring a color texture map; and (6) using a depth learning method to carry out picture classification so as to complete a human motion detection identification task. The motion identification method based on the bone joint point distance is not influenced by an environment and interaction motion and is suitable for interactive motion identification under a complex scene so that the method possesses a wide application value.
Owner:TIANJIN UNIV
Recombinant Bacillus subtilis for producing chondroitinase and application thereof
ActiveCN106148265AHigh enzyme activityGreat application valueBacteriaMicroorganism based processesSignal peptideBioengineerings
The invention discloses recombinant Bacillus subtilis for producing chondroitinase and application thereof and belongs to the technical field of bioengineering. Chondroitinase of common Proteus origin is heterologously expressed in Bacillus subtilis, signal peptide amyX is selected, 3 strong constitutive promoters and strong RBS (ribosome binding site) of pP43NMK vector itself are utilized, histidine tags are added to facilitate subsequent purification, and expressive enzyme activity of chondroitinase in Bacillus subtilis is improved. Certain basis is laid for efficiently producing chondroitinase from food-grade microbes, and the recombinant Bacillus subtilis is suitable for industrial application.
Owner:JIANGNAN UNIV
Raw material coupling system and process method for making fresh water and salt from seawater by membrane method
InactiveCN102701493AIncrease concentrationGreat application valueGeneral water supply conservationSeawater treatmentChemical industryChemistry
The invention relates to a raw material coupling system and a process method for making fresh water and salt from seawater by a membrane method. The system comprises a raw water tank, an ultra-filtration device, an ultra-filtration water tank, a brine electrodialysis separation device, a concentrated brine box, a dilute brine box, a seawater reverse osmosis desalting device and an output water tank; the raw water tank, the ultra-filtration device, the ultra-filtration water tank, the brine electrodialysis separation device, the concentrated brine box, the dilute brine box, the seawater reverse osmosis desalting device and the output water tank are connected with each other in order by pipes or pipes and pumps; and the concentrated brine box is connected with the brine electrodialysis separation device by the pipe. By the treatment of the process of the invention, the high-quality refined salt or the raw materials for salt chemical industries and high-quality fresh water are obtained; meanwhile, the negative effects on marine ecological environment caused by the SWRO (seawater reverse osmosis) concentrated brine are avoided, the cost in making salt from the seawater and the cost in desalting seawater are reduced; and the raw material coupling system and the process method for making the fresh water and salt from the seawater by the membrane method have good use value in northern water-deficient regions of our country.
Owner:BEIJING SCINOR WATER TECH CO LTD
Terahertz wave pulse amplitude modulation signal and optical pulse amplitude modulation signal conversion amplifier
InactiveCN105572797ALow costGreat application valueRadiation pyrometryMaterial analysis by optical meansPhysicsVIT signals
The invention discloses a terahertz wave pulse amplitude modulation signal and optical pulse amplitude modulation signal conversion amplifier. The terahertz wave pulse amplitude modulation signal and optical pulse amplitude modulation signal conversion amplifier is composed of a rectangular cavity, an absorption cavity, a metal block, a vertical waveguide, a horizontal waveguide, three metal films, a terahertz wave and horizontally-transmitted reference light; the rectangular cavity is located at the input end of the terahertz pulse wave; the incident end of the terahertz pulse wave is located at the upper end of the absorption cavity; the absorption cavity is connected with the vertical waveguide; the metal block is arranged in the vertical waveguide and can move; the vertical waveguide is connected with the horizontal waveguide; and the output power of the reference light is in one-to-one correspondence with power inputted into the terahertz pulse wave. The terahertz wave pulse amplitude modulation signal and optical pulse amplitude modulation signal conversion amplifier can convert terahertz wave pulse amplitude modulation signals into optical pulse amplitude modulation signals, so that the cost of a demodulation device of the terahertz wave pulse amplitude modulation signals can be greatly decreased. The amplifier has a very high application value.
Owner:欧阳征标
Arabidopsis AtPGK2 gene for enhancing salt tolerance of plants and application of arabidopsis AtPGK2 gene
InactiveCN104120138AImprove salt toleranceGreat application valueFermentationPlant genotype modificationMolecular biologyPhosphoglycerate kinase
The invention clones an arabidopsis 3-phosphoglycerate kinase gene AtPGK2 for enhancing salt tolerance of plants, and discloses an application of the arabidopsis 3-phosphoglycerate kinase gene AtPGK2. The nucleotide sequence of the gene is shown in SEQIDNO: 1, and the gene also comprises genes which have homologies of 90-100% with the SEQIDNO: 1 nucleotide sequence. Meanwhile, the invention also provides a construction and transgenosis method of a recombinant vector to apply the gene. The method can be used for cultivating new varieties of transgenic plants with stronger salt tolerance, and has wide application values.
Owner:JIANGXI AGRICULTURAL UNIVERSITY
Material screening device
InactiveCN104324886AThe principle is novelEffective screening actionGas current separationEngineeringMaterial storage
The invention discloses a material screening device which comprises a swing box rack, wherein a screening box is arranged on the swing box rack; an air blowing device is arranged at the top end of the screening box; an air suction device is arranged at the bottom end of the screening box; a material storage device is arranged at the upper part of the air blowing device; each of the air blowing device and the air suction device comprises a fan; the screening box comprises a screening box outer wall, discharge hole open / close doors and screens; a plurality layers of the screens are arranged in the screening box; the screening box outer wall at the upper end of each screen is provided with one discharge hole open / close door; the screening box can swing in an inclining manner on the swing box rack. According to the material screening device disclosed by the invention, a negative pressure airflow is formed at the inner part of the device in a fan blowing manner, so that materials and the airflow enter the material screening device in a rotating manner, so that the screening action can be more effectively performed. The material screening device can be used at relatively stable places, as well as can be used at some places with special requirements where the site conditions are relatively complicated and the screening needs to be detected in real time.
Owner:CHINA THREE GORGES UNIV
Fish composition detection real-time PCR (polymerase chain reaction) detection primer, kit and detection method
InactiveCN103103281AGreat application valueGood applicabilityMicrobiological testing/measurementDNA/RNA fragmentationFluorescenceReal-time polymerase chain reaction
The invention discloses a real-time florescent PCR (polymerase chain reaction) detection primer of fish composition in food, a kit and a detection method. The method comprises the following steps of: designing a primer for detection of fish genes and a probe SEQ ID (sequence identification) NO.1-3 aiming at the specific gene sequence of fish; and detecting fish composition in food quantitatively by adopting a real-time florescent PCR method. The real-time florescent PCR method quantitative detection method of fish composition in researched food has great significance for improving the detection efficiency and flexibility of fish composition in food, lowering the detection cost, detecting relevant false products in the market, monitoring food safety, and improving detection technique, and has wide development prospect.
Owner:曹际娟 +3
New coronavirus RBD specific monoclonal antibody and application
ActiveCN111909260AGreat application valueImprove specific binding abilityBiological material analysisImmunoglobulins against virusesAntiendomysial antibodiesMonoclonal
The invention belongs to the technical field of monoclonal antibodies, and particularly discloses a new coronavirus RBD specific monoclonal antibody and application thereof. The new coronavirus RBD specific monoclonal antibody has the important scientific significance and application prospect for prevention and clinical treatment of diseases caused by the new coronavirus SARS-CoV-2 and research and development of diagnostic reagents.
Owner:CHONGQING MEDICAL UNIVERSITY +1
Method of preparing purslane polyunsaturated fatty acids from purslane residues
ActiveCN104059774AOvercoming technical bottlenecksGreat application valueFatty acid chemical modificationFatty acids production/refiningUnsaturated fatty acidSoft gel capsule
The invention discloses a method of preparing purslane polyunsaturated fatty acids from purslane residues. The method comprises the following steps: selecting the purslane residues; raising the extraction pressure of subcritical fluid extraction by 0.8MPa and raising the extraction temperature by 40 DEG C, and extracting for 150 minutes; saponifying and hydrolyzing to prepare a fatty acid mixed before enrichment; heating and stirring urea and anhydrous ethanol for reflux at 60 DEG C in a ratio m / m of urea and fatty acid mixed before enrichment of 1 to 1 and in a ratio m / v of fatty acid mixed before enrichment and ethanol of 1 to 16; after dissolving urea and uniformly mixing with the fatty acid mixed before enrichment, heating and stirring for reflux for 20 minutes; cooling to room temperature; crystallizing for 24 hours at 4 DEG C; filtering to obtain the fatty acid mixed after enrichment. Verified by diabetic rat test, the prepared purslane polyunsaturated fatty acid microcapsule and soft capsule can effectively reduce the levels of blood glucose and insulin and have wide application value and prospect in preparing foods or medicines for preventing and treating diabetes.
Owner:XINJIANG UNIVERSITY +1
Preparation method of carbon nano tube yarn flexible super capacitor composite electrode material
InactiveCN105244188AEasy to makeGreat application valueHybrid capacitor electrodesHybrid/EDL manufactureCarbon nanotube yarnCathode material
The invention discloses a preparation method of a carbon nanotube yarn flexible super capacitor composite electrode material. The method comprises the steps of textile process preparation of carbon nanotube yarns, electroplating composite preparation of an electrode material raw product, and heating and purifying processing of an electrode material; and finally a carbon nano tube loaded transition-state metal oxide composite electrode material can be obtained; and transition-state metal oxides attached onto the cathode material include Co3O4 nanoparticles, NiO nanoparticles or MnO2 nanoparticles. The preparation method of the carbon nanotube yarn flexible super capacitor composite electrode material has the advantages of broad application prospect, excellent mechanical performance and green and environmentally-friendly process.
Owner:DONGGUAN HONGXUAN IND CO LTD
Consultation system for chemical accident emergencies
InactiveCN101800822AGood social benefitsGreat application valueSpecial service for subscribersTransmissionChemical industryTechnical support
The invention discloses a consultation system for chemical accident emergencies, comprising an alarm receiving device, a recording device, a teleconference device, a geographic information management device, a basic database, a professional chemical accident emergency response database and a control device. The control device is connected with the alarm receiving device, the recording device, the teleconference device, the geographic information management device, the basic database and the professional chemical accident emergency response database and used for analyzing the alarm information received by the alarm receiving device, controlling the recording device to record, inquiring and processing the information according to the alarm information and generating an alarm accident processing scheme according to the process result. The system can provide 24-hour information and technical support for chemical accident emergency response in the petroleum and chemical industry referring to the links of chemical production, usage, transportation, operation, storage, abandonment and the like.
Owner:CHINA PETROLEUM & CHEM CORP +1
W-type low-and-medium temperature NTC-PTC binary composite thermistor material and preparation method thereof
InactiveCN101962294AGreat application valueSolve the problem that NTC characteristics are not obviousSolid phasesToxic material
The invention relates to a W-type low-and-medium temperature NTC-PTC binary composite thermistor material and a preparation method thereof and belongs to the technical field of the preparation process of the low-temperature thermistor material. The material consists of (1-omega)La2 / 3Sr1 / 3MnO3+omegaLa1.85Sr0.15CuO4, wherein omega is equal to 0.015 to 0.025mol percent. The preparation process is a solid-phase synthesis process. The preparation process of the W-type low-and-medium temperature NTC-PTC binary composite thermistor material comprises steps of selecting components, blending a main-phase component and doping components in a certain proportion, grinding, calcining, sintering and the like, and finally blending, grinding and sintering the main-phase component and the doping components, and the like. A good binary composite thermistor material can be obtained in a relatively wide temperature range at the low temperature. The material can be used at the temperature of between 2 and 380k, has a relative low resistivity, contains no toxic substance, namely lead, is environment friendly and is applicable in the field of space equipment and low temperature measuring apparatus equipment.
Owner:SHANGHAI UNIV
Spinel type mesoporous high-entropy oxide nanosphere with hollow structure, preparation method and application thereof
ActiveCN111333124ACost controlGreat application valueOther chemical processesNickel compoundsAir atmosphereOxide
The invention discloses a spinel type mesoporous high-entropy oxide (NiCoCrFeMn)3O4 nanosphere with a hollow structure, a preparation method and application thereof, and belongs to the technical fieldof advanced nano materials. The preparation method comprises: carrying out a covalent cross-linking reaction on formaldehyde and tannic acid in weakly alkaline water / alcohol mixed solvent by using pluronic F127 to control morphology, using the tannic acid as an organic ligand and using the formaldehyde as a cross-linking agent to prepare a tannic acid-formaldehyde oligomer; then carrying out a hydrothermal reaction on a metal precursor containing equimolar Ni<2+>, Co<2+>, Cr<3+>, Fe<2+> and Mn<2+> and the prepared tannic acid-formaldehyde oligomer to obtain nickel (II)-cobalt (II)-chromium (III)-iron (II)-manganese (II)-tannic acid-formaldehyde polymer nanospheres; and roasting in an air atmosphere to obtain the spinel type mesoporous high-entropy oxide (NiCoCrFeMn)3O4 nanosphere with thehollow structure. The prepared mesoporous high-entropy oxide (NiCoCrFeMn)3O4 nanosphere has a hollow structure, a high specific surface area, a large pore volume and superparamagnetism, so that the mesoporous high-entropy oxide (NiCoCrFeMn)3O4 nanosphere can be applied to the aspects of catalysis, separation, electrode materials and the like.
Owner:XI AN JIAOTONG UNIV
Pedestrian re-identification method based on label uncertainty and a human body component model
ActiveCN109829414AImprove performanceGreat application valueCharacter and pattern recognitionIdentification rateRe identification
The invention discloses a pedestrian re-identification method based on label uncertainty and a human body component model. The pedestrian re-identification method comprises the following steps: (1) constructing a deep neural network model based on a human body component; (2) initializing the constructed deep neural network model, and performing training according to the constructed deep neural network structure to obtain another model; (3) training the initialized deep neural network model and updating parameters in the network; (4) carrying out feature extraction on the target pedestrian image and pedestrian images in a pedestrian image library by adopting the trained deep neural network; And (5) performing cosine similarity calculation and sorting on the extracted features to obtain a recognition result. According to the method, the problems that local component information is not completely accurate and classification confidence coefficients of all local components are large in difference are effectively processed, the correct rate of pedestrian re-identification can be effectively improved, and / or the false identification rate can be effectively reduced.
Owner:SOUTH CHINA UNIV OF TECH
Method for measuring amylase content and amylopectin content of rice with half grains
The invention belongs to the technical field of food detection and particularly relates to a method for measuring the amylase content and amylopectin content of rice with half grains. The method comprises the following steps that firstly, rice flour is prepared, wherein single rice grains are taken and manually hulled, seed coats and aleurone layers are removed with a knife blade to obtain polished rice grains, then each polished rice grain is transversely cut into two half grains, and the half grains without the germ parts are taken and ground into polished rice flower with a grinding stick; secondly, fat and soluble sugar of the polished rice flour are removed, wherein the polished rice flour obtained in the first step is weighed and evenly mixed with 100% chromatographically-pure methyl alcohol, the mixture is heated for 10 min at 100 DEG C and then centrifuged at 10000 g, then precipitate is collected, the step is repeated 2-3 times, and the precipitate is mixed, wherein the dosage ratio of the polished rice flour to methyl alcohol is 0.6 mg / 1.0 ml; thirdly, starch is gelatinized, and linear chains and branch chains are separated; fourthly, parameters of a gel permeation chromatograph are set; fifthly, the ratio of amylase content / amylopectin content is directly obtained according to the ingredient outlet peak area ratio of amylase to amylopectin.
Owner:CHINA NAT RICE RES INST
Shale capillary pressure and water saturation measurement method
InactiveCN106644875AGreat application valueEfficient development and utilizationPermeability/surface area analysisWeighing by absorbing componentShale gasCapillary pressure
The invention discloses a shale capillary pressure and water saturation measurement method. The method includes the steps of shale sample grinding, drying, cooling, moisture adsorption by a saline solution, desorption by a saline solution and measurement. The shale capillary pressure and water saturation measurement method can be used for pore structure studies and determination of porosity, relative permeability, shale wettability and irreducible water saturation of shale reservoir strata, and has extensive application value in terms of reservoir stratum performance evaluation and reserve calculation of shale. Measuring a relationship curve between capillary pressure and water saturation of the shale is of great significance to efficient development and utilization of unconventional shale gas resources.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI
Automatic control device for realizing multi-stage utilization of motor vehicle exhaust
ActiveCN104879199ARealize the utilization functionGreat application valueNon-fuel substance addition to fuelInternal combustion piston enginesAutomatic controlExhaust gas
The invention discloses an automatic control device for realizing multi-stage utilization of motor vehicle exhaust. The automatic control device comprises a booster, a gas mixing pump and an exhaust pipe, wherein the booster comprises a turbine and an impeller which are coaxially arranged, a transmission mechanism linked with a turbine shaft is arranged on one side of the booster, and an output shaft of the transmission mechanism is connected with a fan; the gas mixing pump is arranged on the other side of the booster, and the impeller is arranged in the gas mixing pump; the booster and the gas mixing pump are provided with exhaust inlets communicated with the exhaust pipe; the gas mixing pump is also provided with an air inlet communicated with the atmosphere and a mixed gas outlet communicated with an engine gas inlet; proportional regulating valves are arranged at the exhaust inlets of the booster and the gas mixing pump and electrically connected with an electric control unit. The automatic control device can realize multiple motor vehicle exhaust utilization functions and can realize multi-stage automatic control according to use requirements.
Owner:SHANGHAI UNIV OF ENG SCI
Safety anti-counterfeiting system and method based on two wireless radio frequency tags
InactiveCN102411748AGreat application valueEnsure safetySensing record carriersCommerceRadio frequencyEngineering
The invention discloses a safety anti-counterfeiting system and method based on two wireless radio frequency tags. The system comprises a tag issuing device, an object tag, an owner tag, a tag validator, a data server and a database, wherein both the object tag and the owner tag are issued by the tag issuing device and authenticated by the tag validator; data in the tag issuing device and the tagvalidator are synchronized through the data server; the data server is connected with the tag issuing device, the tag validator and the database; and the owner tag and the object tag are issued in pair so as to form a tag pair.
Owner:SOUTH CHINA NORMAL UNIVERSITY
Rapid high-precision defect detection method based on visual image
ActiveCN112381827AWide range of application scenariosGreat application valueImage analysisVision basedNuclear medicine
The invention discloses a rapid high-precision defect detection method based on a visual image, and the method comprises the following steps: positioning a reference standard object, collecting an image, creating a matching template, determining a detection region, positioning a to-be-detected object, collecting an image, comparing a standard region image with a to-be-detected region image, obtaining a defect detection result.Extracting abnormal areas, and extracting and screening abnormal area features. According to the rapid high-precision defect detection method based on the visual image, the detection process is simple and rapid, a high-precision calibration plate or an auxiliary tool does not need to be specially customized, the requirement for the assembly precision of the alignmentmodule is low, calculation of the translation position and the rotation angle can be completed through one-time photographing of multiple cameras, and the alignment process is high in efficiency and precision, therefore, rapid and high-precision defect detection of the target object can be realized.
Owner:CASI VISION TECH (BEIJING) CO LTD +1
Nuclear power plant radioactive fluid waste online sampling device and method
InactiveCN105547746AImprove safety and economyGreat application valueWithdrawing sample devicesEngineeringNuclear power plant
The invention discloses a nuclear power plant radioactive fluid waste online sampling device which comprises a sampling part sealedly connected to a fluid pipeline, a movable rod sealedly accommodated in an accommodating space, and a driving device sealedly mounted on the sampling part; the sampling part is provided with the accommodating space and a sample discharge port communicating with the accommodating space; the movable rod is provided with a concave sampling space and can perform reciprocating motion between a sample discharge position and a sampling position; the driving device drives the movable rod to perform reciprocating motion between the sample discharge position and the sampling position in the accommodating space; when the movable rod is located at the sampling position, the movable rod enters the fluid pipeline, and a fluid sample enters the concave sampling space; when the movable rod is located at the sample discharge position, the concave sampling space corresponds to the sample discharge port, and the fluid sample carried in the concave sampling space flows into a shield sampling bottle sealed connected on the sample discharge port from the sample discharge port. In addition, the invention also discloses a nuclear power plant radioactive fluid waste online sampling method.
Owner:中广核工程有限公司 +1
Cotton long non-coding RNA-lnc973 and application thereof in plant salt tolerance
ActiveCN108795944AImprove salt toleranceGreat application valueVector-based foreign material introductionAngiosperms/flowering plantsLong non-coding RNAAgricultural science
The invention discloses a lncRNA-lnc973 sequence of cotton long non-coding RNA and application thereof in plant salt tolerance. The nucleotide sequence of the lncRNA-lnc973 is shown by SEQ ID NO.1. According to the cotton long non-coding RNA disclosed by the invention, objective existence of lncRNA-lnc973 is proved by PCR, and the expression amount of the lncRNA-lnc973 is remarkably increased in the condition of salt stress. The full-length transcript of cotton lncRNA-lnc973 is cloned to establish overexpression vector transformed wild type arabidopsis thaliana, and the transgenic arabidopsisthaliana enhances the salt tolerance; by establishing a VIGS (virus-induced gene silencing) knockout vector and transfecting cotton leaves with the VIGS technology, the result proves that the expression amount of cotton lnc973 after VIGS knockout is remarkably lowered, and the salt tolerance is reduced, thus indicating that the plant salt tolerance can be enhanced by overexpression of the cotton lncRNA-lnc973.
Owner:SHANDONG AGRICULTURAL UNIVERSITY
Seagull stone PVC-fly ash composite material
The seagull stone polyvinyl chloride-fly ash composite material prepared by the invention is a new type of functional material, which can be applied to floor tiles, prefabricated houses, inner lining materials of safety helmets and the like. Not only can it meet the requirements of daily use, but also endow the material with functionality, so that it can release negative air ions that are beneficial to the human body. The most successful part of the invention is that most of the experimental raw materials are industrial wastes, thus responding to the country's call for "low carbon", "energy saving", "environmental protection" and "health", and realizing the reuse of industrial wastes.
Owner:郭彬
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