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557results about How to "Guaranteed Features" patented technology

Fermentation pepper sauce and preparation thereof

InactiveCN101238875AMild spicinessSoft and long mouthfeelFood preparationPreservative freeAlcohol
The invention discloses a fermented pepper sauce and preparation method thereof, comprising cleaning and cutting the greenly red pepper; blanching; pulping; adding ginger, garlic, tomato, carrot, carbon source, salt as additive materials; sterilizing; and then inoculating the mold or yeast or compound bacteria of mold and yeast to perform alcohol fermentation; and then sterilizing; inoculating the acetic acid bacteria to perform acetic acid fermentation; finally adding sweeting agent and thickener to be canned. After blanching, the pulping is not necessary and the calcium salt is added to produce the products during process of preparing. The fermented pepper sauce has gentle pungent taste, delicious taste, fermentation flavor. The preparation method thereof can quickly produce the fermented pepper sauce with good and stable quality, fine flavor, safety without antiseptic, suitable for industrialized mass production with excellent market application foreground.
Owner:GUIZHOU UNIV

Fire video detection and early warning method based on image multi-feature fusion

The invention discloses a fire video detection and early warning method based on image multi-feature fusion, and the method comprises the steps: firstly carrying out the preprocessing after an image sequence of a video is obtained; extracting a foreground region, and obtaining a detected candidate region; secondly, extracting static features and dynamic features from the candidate areas, judging whether flames are contained or not by taking the static features and dynamic features as input of an SVM classifier when the flames are detected, and obtaining whether smoke is contained or not afterlogic combination selection and calculation are conducted on feature judgment results when the smoke is detected; finally, if it is detected that flames or smoke exists, carrying out fire judgment according to the growth trend of the flames or smoke; when it is judged that a fire occurs, carrying out fire alarm on the monitoring site, and otherwise carrying out fire alarm only on the background. The method can be combined with an existing monitoring system to be applied to places such as shopping malls and warehouses, the fire detection and early warning cost is reduced, the detection method is good in generalization ability and applicability, reliable fire detection and early warning functions can be provided, and the method has practical value.
Owner:NANJING UNIV OF POSTS & TELECOMM

Deep neural network target detection method based on multi-scale receptive field feature fusion

The invention relates to a deep neural network target detection method based on multi-scale receptive field feature fusion, and the method comprises the steps: collecting a training sample image whichcomprises three RGB channels, and attaching object detection box labels and the category label information of each object; converting image data and label data in the collected image data set into aformat required by training the deep convolutional neural network through preprocessing; designing a deep convolutional neural network structure based on multi-scale receptive field feature fusion; designing a deep neural network structure applied to target detection, determining an input layer and an output layer of the network according to the structure of input and output data during design, determining the number of multi-scale receptive field feature fusion modules and the number of convolution layers in the neural network, and determining the number of times of network training loop iteration and the final convergence condition of the network; and according to the structure of the trained target and model, defining a required loss function, and in the training stage, carrying out regression on the category of the target and the offset of the detection frame.
Owner:TIANJIN UNIV

Road network limitation capacity determining method based on pressure test

The invention relates to a road-net ultimate capacity determination method based on pressure measurement, which belongs to the field of road-net traffic capacity control techniques and which is characterized in that: the method comprises the following steps of adopting the observation network of a computer to collect the traffic parameters of a road net; adopting a macroscopic traffic simulation and planning software Cube and a geographic information system software ArcGIS to generate road-net files and initial values of pressure measurement in the computer; adopting the software Cube to generate a pressure measurement model which performs the pressure measurement in a preset measurement period; calculating the road-net average saturation and the road-net average velocity; comparing the two calculated valves to the preset index values of the road-net average saturation and the road-net average velocity; judging whether the calculated valves meet the preset requirements; and if either fails, increasing the road-net traffic capacity and continuing the pressure measurement until both meet the requirement; and determining the road-net traffic capacity at the time as the road-net ultimate capacity. The road-net ultimate capacity determination method increases the calculation accuracy, reliability and efficiency and fills the blank of determining the road-net ultimate capacity based on pressure measurement.
Owner:BEIJING UNIV OF TECH

Carbon nanotube/short-fiber composited nano-carbon paper and continuous preparation method thereof

The invention provides a kind of carbon nanotube / short-fiber composited nano-carbon paper and a continuous preparation method thereof. The nano-carbon paper mainly comprises disordered carbon nanotubes and short fibers, and is in a non-woven form. The preparation method of the nano-carbon paper comprises the following steps that: the disordered carbon nanotubes are dispersed in a solvent so as to form a dispersion liquid; then, mixing and dispersing the short fibers so as to form a size; preparing an initial film through vacuum assisted flow-casting film-forming; and then, removing polymers in the initial film through subsequent processing so as to obtain a target product. The composited nano-carbon paper disclosed by the invention integrates the huge specific surface areas, superior conductivity and functional characteristics of the carbon nanotubes and the enhancement effect of the short fibers on the strength and flexibility of the carbon paper, therefore, the composited nano-carbon paper is good in self-supporting property and flexibility; meanwhile, through the direct film-forming implemented by using a flow-casting method, the continuous film-forming of the nano-carbon paper is realized, therefore, the nano-carbon paper has the advantages of high efficiency, rapidness and easy large-scale preparation. The composited nano-carbon paper disclosed by the invention has a wide application prospect in the fields of energy electrodes, catalytic carriers, environmental management, static resistance, electromagnetic shielding, wave-absorbing camouflage, and the like.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Fishbone bioactive polypeptide calcium powder and preparation method

InactiveCN101731666AGuaranteed FeaturesIncreased bioabsorptionFood preparationFood additiveFood grade
The invention discloses fishbone bioactive polypeptide calcium powder and a preparation method, belonging to the field of functional food or food additives. The preparation method comprises the following steps: freezing fishbone, coarse grinding, fine grinding, adding water, stirring, adding a compound protease to hydrolyze, centrifugating, and respectively collecting the supernatant and the precipitate; ultrafiltering the supernatant by a filter membrane, concentrating the filtrate, and freeze-drying to obtain the fishbone protein polypeptide powder; washing the precipitate, drying and pulverizing; activating by using citric acid, and drying to obtain the soluble calcium; and mixing the fishbone protein polypeptide powder and the soluble calcium to obtain the fishbone bioactive polypeptide calcium powder. The fishbone bioactive polypeptide calcium powder enables the biological absorptivity of calcium to reach above 65%, and meanwhile, maintains the functional characteristics of polypeptide. Hydrolysis is carried out by using the food-grade protease, and thus, the fishbone bioactive polypeptide calcium powder has the advantages of high safety and no side effect. The method of the invention has the advantages of simple and feasible realization, and low cost. The fishbone bioactive polypeptide calcium powder can be used as a food additive or directly eaten as nutritional food.
Owner:ANSHAN JIAXIAN AGRI DEV

Polyarylether carbonitrile industrial production method

The industrial process of polyarylethernitrile, this invention relates to the Synthesis of polyarylethernitrile. Adding 2, 6-dichlorocyanobenzene, polyhydric phenol, anhydrous potassium carbonate, solvent NMPA, toluene in autoclave, heating-up the autoclave to 100-200 deg C in the condition of 2. 0-2. 5MPa in autoclave, heating-up the autoclave to 150-300deg C after 2-6h heat preservation, taking out the fixed object of autoclave after 1-6h heat preservation, getting the polyarylethernitrile after washing by boiling-water, desiccation and granulation. The production condition of this invention is easy to realize, the industrial process is easy to control, and the produced polyarylethernitrile is low in cost and suit to use of multirealm.
Owner:YANGZHOU TIANCHEN FINE CHEM

Edible insect full-powder and the production process and application thereof

The present invention relates to a method to fabricate a full edible insect powder, with the main raw material as the edible insects with the represent of the flour weevil, the cicada, the cryptympana atrata, the locust and the silkworm pupa. The exploited products in both domestic and international markets at present include the specific animal feeds and the dishes of edible insects, as well as the animal feed made from a certain amount of raw materials of insects. The present invention aims to exploit a full edible insect powder as well as the fabrication method and application thereof to accomplish the industrialized production with a large scale. The technical proposal is that the insects which undergoes both elimination of foreign bodies, toxins and cleaning up in the latter phase of cultivation are killed, dehydrated, roasted, (or dried through refrigeration) dried and refrigerated in vacuum, and then smashed and filtrateed to be the final product. The effect of the present invention is that the full insect powder contains all nutritious elements thereof, including proteins, lipids, vitamins and various trace elements. The present invention has unique characteristic, safety without toxins, wide application fields, feasibility to be the nutrition of serious snacks, and feasibility to be the stuffing of food of various cakes and candies.
Owner:西安市轻工业研究所

A server load equalizing method

InactiveCN1570903AGuaranteed Weighted CoverageReduce continuous impactRandom number generatorsMultiple digital computer combinationsOperating systemHigh weight
This invention discloses a kind of server load balancing method. It can realize load balancing based on server weight value and probability statistics theory. The technical project is: making sure the corresponding relation of the servers in server group and the distribution range that complied with the first presetting rule. When there is a new service request enters, it generats a random number and determines one located distribution range of this random number. Then it determines the dispatched server according to the determined one located distribution range and its corresponding relation and forwards the access request to this server. This invention can make sure the rapid load balancing dispatching speed and make the high weight value server providing more access service statistically, so to realize high-powered network transmission.
Owner:HUAWEI TECH CO LTD

Grain-compounded soybean protein snack dried bean curd and preparation method thereof

The invention belongs to the field of food processing and relates to processing and application of soybean protein isolate, specifically to a grain-compounded soybean protein snack dried bean curd. The grain-compounded soybean protein snack dried bean curd comprises the following raw materials: soybean protein, plant oil, modified starch, salt, sugar, monosodium glutamate, salty essence, complex gum, grain particles, transglutaminase (TG) and water. Through controlling the integral processing technology of the dried bean curd, especially chopping and mixing time and material adding sequence of the processing technology and process parameters like marinating temperature and time, the dried bean curd which is good in moisture and temperature control and taste and hard to deteriorate in production and consumption is prepared.
Owner:SHANDONG YUWANG ECOLOGY FOOD IND

Universal construction method for protein-targeting chimeric molecule compound

The invention discloses a universal construction method for a protein-targeting chimeric molecule compound. The objective of the invention is to provide a method for adjusting the level of proteins by degrading the proteins through targeted ubiquitination. The construction method mainly comprises the following steps: 1) locating and analyzing a three-dimensional structure of a target protein and predicting active sites; 2) selecting a compound database; 3) virtually screening ligand compounds having high degrees of adaption to the target protein by using a computer; 4) acquiring the screened ligand compounds and screening an optimal ligand compound of the target protein through detection of interaction between micromolecules and the proteins; 5) constructing a protein-targeting chimeric molecule compound composed of the optimal ligand compound of the target protein, ubiquitin ligase E3 identification ligand and Linker connecting the optimal ligand compound of the target protein to the ubiquitin ligase E3 identification ligand by using a combination manner simulated by the computer; and 6) chemically synthesizing the protein-targeting chimeric molecule compound. With the method provided by the invention, the protein-targeting chimeric molecule compound can be rapidly and highly efficiently prepared, and specific degradation of intracellular target proteins is realized.
Owner:THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV

Nucleic acids of liquid-phase gene chip for synchronously detecting five porcine viruses and detection method thereof

The invention provides a set of nucleic acids of a liquid-phase gene chip for synchronously detecting five porcine viruses, which comprise forward and reverse primers and hybrid probes for porcine reproductive and respiratory syndrome virus (PRRSV), porcine circovirus type 2 (PCV2), porcine pseudorabies virus (PRV), classical swine fever virus (CSFV) and porcine parvovirus (PPV). The invention also provides a multiplex liquid-phase chip high-flux molecular biology detection method of the five porcine viruses. According to the method, porcine virus nucleic acids in the sample to be detected are extracted to perform multiplex unsymmetric nucleic acid amplification / multiplex liquid-phase gene chip (suspension chip) combined detection, thereby synchronously and accurately detecting and identifying the five porcine viruses in the sample to be detected. The method has the advantages of high specificity, high sensitivity, high stability, high flux and high detection speed, and is simple to operate.
Owner:INSPECTION & QUARANTINE TECH CENT OF GUANGDONG ENTRY EXIT INSPECTION & QUARANTINE BUREAU

Zika virus fluorescent PCR detecting kit

The invention provides a Zika virus fluorescent PCR detecting kit, and relates to a kit for detecting Zika virus, in particular to simultaneous detection of Zika virus RNA by using a real-time fluorescent polymerase chain type reaction technology.The kit mainly comprises RT-PCR reaction liquid, primer probe mixed liquid, an RT-PCR reaction enzyme system, DEPC H2O and a packaging box for separating and packaging reagent bottles or tubes in a centralized manner.The kit adopts a Taqman probe detection mode and a one-step real-time fluorescent PCR reaction mode, can accurately and quickly detect the Zika virus RNA, and can be widely applied to various fields such as Zika virus disease clinic early diagnosis, disease prevention and scientific research.
Owner:DAAN GENE CO LTD

Foot-shaped three-dimensional surface reconstruction method based on image segmentation and grid subdivision

The invention relates to a foot-shaped three-dimensional surface reconstruction method based on image segmentation and grid subdivision, comprising the steps of: carrying out statistics and analysis on a shoe last sample set to obtain a statistic deformation model, using a plurality of cameras to obtain images of a foot, then using the statistic model to fit the foot-shaped images, obtaining a sparse grid model, then segmenting image characteristic points from all the images, reducing the planar characteristic points into spatial points, finally using the spatial characteristic points subdivide the grid model and carrying out the subdivision iteratively, thus obtaining a foot-shaped model consistent to a target object. In the foot-shaped three-dimensional surface reconstruction method, marking points do not need to be arranged on the foot, high-accuracy laser measurement equipment is also not needed, artificial participation is not needed, only the cameras and a computer and other devices are used, and the reconstruction risk is finished by software in a full-automatic manner. A reconstruction network can be consistent to a target foot shape automatically, can capture the detail characteristics in the images automatically and can adapt to information provided by the images automatically.
Owner:WENZHOU UNIVERSITY

Split type micro-electric mechanic system and preparation method thereof

The invention relates to a micromachining process, and particularly relates to a biological micro-electric mechanic system. The invention provides a split type micro-electric mechanic system and a preparation method thereof. The split type micro-electric mechanic system comprises separate polymer microfluidic chips on the structure and a functional base, wherein, the functional base has the advantages of stable structure, reliable performance and repeat application by adopting the process technology of the high-precision silicon-based micro-electric mechanic system; and the microfluidic chips have the advantages of extremely low cost and disposable application by adopting the micro process technology of the high-flux polymer. Therefore, the micromachining process can be applied under different situations, and is particularly suitable for the design of the low-cost, rapid, multifunctional integrated and portable clinical biological micro-electric mechanic system.
Owner:PEKING UNIV

Cross-chain interoperation system and method, medium and data processing terminal

InactiveCN113965329AImprove safety and fairnessEnsure safetyUser identity/authority verificationTrunkingBlockchain
The invention belongs to the technical field of block chains, and discloses a cross-chain interoperation system and method, a medium and a data processing terminal, the cross-chain interoperation system comprises a relay alliance chain, a cross-chain gateway, a CCIP protocol and an application chain; the relay alliance chain is a center of the whole cross-chain system and is responsible for management of an application chain and users thereof and management of cross-chain transactions; the cross-chain gateway serves as an intermediate routing node, is used for communicating the application chain with the relay alliance chain, and has a protocol conversion function; the CCIP protocol is used for message transmission between the relay alliance chain and the application chain; and the application chain is a block chain platform participating in cross-chain interaction, and a public chain, the alliance chain and a private chain can participate in the cross-chain system. The blockchain cross-chain interoperation system based on alliance autonomy provided by the invention provides a safe, reliable and efficient universal platform for interaction requirements between different blockchains, and has advanced technical significance and wide application value.
Owner:ZHEJIANG NORMAL UNIVERSITY

Blueberry kombucha beverage and preparation method thereof

The invention discloses a blueberry kombucha beverage and a preparation method thereof. Raw materials and auxiliary materials comprise: blueberry fruit juice, white sugar, lactose, common black tea, Chrysanthemum morifolium, corn syrup, honey, mixed infusion of fresh ginger, mint and licorice, purified water, angel dried yeast, lactobacillus bulgaricus, bifidobacteria, lactobacillus acidophilus, Shanghai wine 1.01 acetobacter rancens, sodium erythorbate, yeast nutrient salt and dimethyl sodium bicarbonate. The raw materials and auxiliary materials need pretreatment steps of fermenting for 3-4t with a sandwich fermentation cylinder, shearing 5-10min with a high speed shearing machine, and then fermenting for 3-4t. A quantitative fermentation technology is used, and clarifying filtration and aseptic filtration are co-used, to raise biological stability of products. By regulation, product efficacies are strengthened, and goods performances are raised. Low temperature degasification and aseptic cold-filling are preformed, to guarantee product characteristics and quality.
Owner:HEILONGJIANG JINDI WINE IND

Test kit for detecting nucleic acid of respiratory tract pathogens, detection method and application

ActiveCN111534643AEfficient detection/diagnosisRapid Test/DiagnosisMicrobiological testing/measurementAgainst vector-borne diseasesInfluenza A antigenMedicine
The invention provides a test kit for detecting nucleic acid of respiratory tract pathogens. The kit comprises a CRISPR-Cas detection system: crRNA, a primer pair, Cas protein and a nucleic acid probethat are described in the invention. The invention further provides a detection method of the nucleic acid of the respiratory tract pathogens, a combination of the crRNA and the primer pair and application of the combination. The test kit and the detection method disclosed by the invention can be used for directly observing results by naked eyes without depending on a large instrument, and detection can be realized under a mild condition, so that the detection is more convenient; the test kit and the detection method provided by the invention can be used for efficiently and rapidly detecting / diagnosing the respiratory tract pathogens (such as flu A, flu B and COVID-19), have relatively high specificity and sensitivity, and can be used for detecting and screening the respiratory tract pathogens, for example, rapidly distinguishing various respiratory tract pathogens including the flu A, the flu B and the COVID-19.
Owner:SHANGHAI TECH UNIV

Reactive power configuration method for wind power base

The invention provides a reactive power configuration method for a wind power base. Based on coordination of resources in a system such as adjustable spare capacity and an interruptible load, a reactive power configuration scheme for the wind power base is optimized by the aid of a genetic algorithm by considering various limitations of reactive power optimization of a wind power station and taking the minimum operation risk generated in a dynamic process after dropping of grid-connected point voltage of the wind power station as an optimal object. Compared with a minimum active power network loss configuration scheme frequently used by an existing wind power station, the reactive power configuration method has the advantages that the reactive power configuration capacity of the wind power base can be reduced, the active power spare capacity of the system is reduced, so that the operation cost of the system is reduced, various regulatory resources of the system can be sufficiently invoked, and steady state voltage level and transient voltage characteristics of a grid-connected point can be ensured.
Owner:SOUTHEAST UNIV

Method and equipment for drying and carbonizing wood integrally on vacuum condition

The invention provides equipment for drying and carbonizing wood integrally. The equipment comprises a pressure adjusting system, a heating and cooling system, a material loading, transporting and pressurizing system and a water drainage system; an exo-box heat conduction oil pipe of the heating and cooling system penetrates through a treatment box and is welded to a wall of the treatment box for being sealed; a water inlet valve of the water drainage system is connected to the treatment box and a water drainage box through connection pipelines; and an outer wall of a hydraulic cylinder of the material loading, transporting and pressurizing system is welded to the treatment box in a sealed mode. The equipment has the advantages that the repeated loading, stacking, heating and cooling steps of the drying and heat treating steps of wood are reduced, so that the processing efficiency is improved, and the energy consumption is lowered; a processing method is flexible and multipurpose and the equipment is multifunctional; the whole drying and carbonizing treatment is carried out on the vacuum and negative pressure conditions, the content of air in the treatment box is small, and the oxygen content is low; carbonized wood making contact with a hot plate can be fast cooled; and the wood can be prevented from being deformed, warped and cracked in the vacuum drying and vacuum carbonizing stages.
Owner:GUANGDONG YIHUA TIMBER IND

Method for constructing actual machining curve of small-curvature part based on point cloud boundaries

The invention belongs to the field of robot vision detection, and discloses a curve discretization method based on point cloud boundary geometrical characteristics. The curve discretization method comprises the following steps: (a) encrypting a three-dimensional ordered boundary curve of a part to be processed; (b) fitting the encrypted boundary points into a plane, and projecting each boundary point into the plane to obtain a projection point; (c) carrying out straight line Euclidean clustering and line point sets in a plane, and fitting the obtained point sets into a straight line; (d) carrying out Euclidean clustering on the projection points which are not fitted into the straight line to obtain a corner point set, and carrying out sharp corner or round corner fitting on the corner point set to obtain a fitted boundary curve in a plane; and (e) mapping the fitted boundary curve to the curved surface of the three-dimensional ordered boundary curve to obtain the actual machining curveof the to-be-processed part. By means of the curve discretization method, the actual machining curve is obtained through the point cloud data of the to-be-machined part, and sharp corner and round corner characteristics are reserved, and the machining precision is high.
Owner:HUAZHONG UNIV OF SCI & TECH

Colloidal gold test strip for fast detecting rheumatoid factors

The invention discloses a colloidal gold test strip for fast detecting rheumatoid factors, belonging to medical test consumables. The colloidal gold test strip is characterized in that human denatured IgG with a colloidal gold label is enveloped on a gold label fiber pad; anti-mu chain IgM and human denatured IgG are enveloped on a T line, and the ratio of unit area envelop quantity of the human denatured IgG on the colloidal gold label, the anti-mu chain IgM and human denatured IgG on the T line on the gold label fiber pad is 0.133-0.889 to 5 to 1. The test strip uses an antibody capture method and a double antigen sandwich method principle during detection, has sensitivity and specificity, can fast detect the rheumatoid factors in human serum, plasma or whole blood by combining with an immune colloidal gold technique and has the advantages of simplicity, sensitivity and accuracy.
Owner:蓝十字生物药业(北京)有限公司

Method and equipment for controlling coexistence interference coordination in time division multiplex (TDM) equipment

The embodiment of the invention discloses a method and equipment for controlling coexistence interference coordination in time division multiplex (TDM) equipment. By utilizing the technical scheme of the embodiment, coexistence interference coordination in the TDM equipment can be executed, so the coexistence interference coordination in the TDM equipment adopted by terminal equipment can be guaranteed to adjust immediately according to the variation of signal channels of a long term evolution (LTE) system, variation of a data transmission state and variation of current service demand, while the coexistence transmission performance of multiple wireless systems in the equipment can be guaranteed, and the connection property and systematic performance of the LTE system can be better guaranteed.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Forward and reverse ABO typing and RhD blood type detecting card

The invention discloses a forward and reverse ABO typing and RhD blood type detecting card comprising a detecting card with six micro-columns, wherein the first three micro-columns in the six micro-columns are respectively filled with equivalent A-resistant gel, B-resistant gel and D-resistant gel, and the left three micro-columns are filled with equivalent blank gel. The forward and reverse ABO typing and RhD blood type detecting card is prepared by using the following method comprising the steps of swelling dextran gels; preparing all antibody diluents; preparing all antibody working solutions; washing the gels; and subpackaging to form the RhD blood type detecting card. According to the forward and reverse ABO typing and RhD blood type detecting card, crosslinked dextran gels with different sizes and sieving ranges are mixed and swelled by using purified water, so that the specificity is effectively ensured, meanwhile, the forward and reverse ABO typing and RhD blood type detecting card has very high sensitivity, and the ion strength of a system is effectively ensured.
Owner:合肥天一生物技术研究所有限责任公司

Method, oligonucleotide and kit for detecting high-risk HPV (human papilloma viruses)

The invention provides a method, oligonucleotide and kit for detecting common high-risk HPV (human papilloma viruses). A fluorescence PCR (polymerase chain reaction) technology is adopted, HPV16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 68, 26, 53, 66, 73 and 82 which possibly exist in a sample are subjected to initial detection and type identification. By the method, oligonucleotide and kit for detecting the common high-risk HPV, 18 high-risk types can be detected simultaneously, and the HPV 16 and 18 can be subjected to genetic typing simultaneously. On the basis of 18 types of high-risk HPV and affinity of other types on a phylogenetic tree, a high-risk HPV primer and a probe are designed, a background fluorescence value is reduced remarkably while detection accuracy, sensitivity and specificity are guaranteed, detection flux is increased remarkably, and detection cost is greatly reduced.
Owner:ACON BIOTECH (HANGZHOU) CO LTD

Method for preparing anti-virus molecularly imprinted polymer

The invention discloses a method for preparing an anti-virus molecularly imprinted polymer. The method comprises the steps of modifying dopamine nanofilm on a carrier material, then combining a target virus with the carrier material modified with the dopamine nanofilm, forming a virus-dopamine-carrier material compound, eluting the target virus from the compound, and obtaining the corresponding anti-virus molecularly imprinted polymer. According to the anti-virus molecularly imprinted polymer, imprinted holes left after the virus is eluted can be utilized, the target virus is combined in a specific mode, and the target virus is prevented from multiplication and infecting a host; the anti-virus molecularly imprinted polymer has the advantages of being good in using specificity, friendly in service environment and simple in regenerate, and a good using prospect in the biological immunity field is achieved.
Owner:HUAZHONG UNIV OF SCI & TECH

Broadband dual-mode plane end-on-fire circularly polarized antenna

The invention discloses a broadband dual-mode plane end-on-fire circularly polarized antenna. Fan-shaped annular first electric dipole arm and second electric dipole arm which are identical in structure, same in size and arranged in an anti-symmetric manner are designed on a dielectric substrate having a relative dielectric constant in a range of 1-20. A semi-circular magnetic dipole structure is introduced for connecting with the first electric dipole arm and the second electric dipole arm and the magnetic dipole is concentric with the two electric dipole arms. At the same time, two pairs of tuning stubs are added at identical positions of the two electric dipole arms correspondingly. The tuning stubs added on the electric dipole arms are used for antenna bandwidth expansion. A polarized beam synthesized by the plane magnetic dipole and the plane electric dipole is parallel to the plane with the antenna. According to the invention, the combined antenna adopt a single-point feed method, the bandwidth of the antenna is over two times greater than that of antennas of the same kind. The antenna provided by the invention has characteristics of simple structure, low profile, small size, low manufacture cost and the like and the application range is very wide.
Owner:NANJING UNIV OF POSTS & TELECOMM

Gene chip and method for detecting classical swine fever virus (CSFV), porcine circovirus virus type 2 (PCV-2) and porcine reproductive and respiratory syndrome virus (PRRSV)

The invention provides a gene chip detection method for a classical swine fever virus (CSFV), a porcine circovirus virus type 2 (PCV-2), a porcine reproductive and respiratory syndrome virus Europe type (PRRSVE) and a porcine reproductive and respiratory syndrome virus America type (PRRSVA). A gene chip is shown as a probe sequence in the table of the specification. The invention discloses a method for simultaneously detecting three diseases, namely classical swine fever (CSF), a porcine circovirus type 2 (PCV-2) and a porcine reproductive and respiratory syndrome (PRRS) by using the gene chip. By the method, the problems that the conventional detection technology is time-consuming and labor-consuming and has low specificity, or only can be used for detecting a single disease are solved. All probes provided by the invention are synthesized into a connecting amino group at a 5' end, a poly T connecting arm with the length of 15 bp is provided, and a result shows that fixing efficiency is relatively high. By a polymerase chain reaction (PCR) amplification technology with mark primers, various kinds of fluorescent mark deoxyribonucleic acid (DNA) complementary to corresponding probescan be amplified at a time, and the high specificity and sensitivity of nucleic acid hybridization in a solid-liquid phase can be ensured. In addition, by a mark method, detection time is greatly shortened, the cost of chip detection is lowered, and the detection method is more suitable to be popularized in clinical application.
Owner:CHONGQING UNIV OF TECH
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