44results about How to "Quick and efficient extraction" patented technology

The invention discloses a keyword extracting method based on Word2Vec and a Query log, and relates to the field of information processing. The method includes the steps of S1, building a specific word list of a target field; S2, obtaining candidate keywords of documents in a document set; S3, obtaining word vectors of a plurality of dimensions of each candidate keyword; S4, calculating the cosine similarities between the word vectors of any candidate keyword L and a center vector, judging whether the candidate keyword L exists in the specific word list or not, if the candidate keyword L exists in the specific word list, directly implementing the step S5, and if the candidate keyword L does not exist in the specific word list, directly implementing the step S6; S5, multiplying the obtained cosine similarities by a weighting factor i to obtain new cosine similarities, and implementing the step S6; S6, ranking the values of the cosine similarities from large to small, outputting the values of m cosine similarities from the cosine similarity with the largest value, and obtaining final keywords. By means of the keyword extracting method, the keywords with the ideal quality can be rapidly and efficiently extracted for texts in specific fields, oral words are prevented from being introduced, and the extracted keywords are high in quality.

The unmanned vehicle acquires three-dimensional mass point cloud data (point cloud field) through multiline laser radar for hundreds of MB per second, and the data storage space and processing timeliness have extremely high requirement for the computing resource. The invention provides a multiline laser radar three-dimensional point cloud data rapid and effective extraction method without influencing vehicle and lane line feature recognition. The r layer point cloud data of the vehicle multilayer point cloud data in the area of interest of the unmanned vehicle acquired through multiline laser radar are extracted by adaptive distance. Besides, the invention also provides a lane line extraction method through the return light intensity based on distance and angle correction. The requirement of mass point cloud data processing for the computer hardware can be reduced, the storage space and cost can be saved, the timeliness of point cloud data processing can be accelerated and rapid and effective extraction and feature recognition of the vehicle and lane line point cloud data in the area of interest of the unmanned vehicle can be realized. The method is suitable for multiple urban roads so as to be high in anti-interference capability and great in algorithm robustness.

The invention relates to an apparatus for performing gel protein extractions and methods of using the apparatus.

The invention relates to a method for directly detecting medicinal molecules on a magnetic imprinting immobilized substrate by surface enhanced Raman spectroscopy technology. In the method, molecular imprinting technology is better combined with magnetic separation technology by using nano particles which comprise Fe3O4 serving as nuclear molecules and imprinted polymers serving as shells and have a nuclear shell structure so as to fulfill the aims of quickly and efficiently extracting and separating the medicinal molecules in a mixed system. In-situ and high-sensitivity detection can be directly performed on the medicinal molecules which are imprinted on the immobilized substrate of the molecule imprinted polymers by the surface enhanced Raman spectroscopy technology on the premise that the molecule imprinted polymers on which the medicinal molecules are imprinted are not processed to acquire related spectral information. By the method, the molecular imprinting technology, the magnetic separation technology and the surface enhanced Raman spectroscopy technology are combined. The invention provides the method which has the advantages of high extraction efficiency, simplicity in separation and high sensitivity for detecting the medicinal molecules.

A mechanism for introducing pressurized air into an extracting cartridge comprises an air pump, an on-off valve, and a pressure sensor for detecting an internal pressure within the extracting cartridge. The on-off valve is turned on in order to introduce the pressurized air into the extracting cartridge. When the internal pressure detected by the pressure sensor has become equal to a predetermined pressure range for a pressurization upper limit, the on-off valve is turned off in order to confine the area within the extracting cartridge in the pressurized state, the pressure being thereby exerted upon a sample liquid, a washing liquid, or a recovery liquid having been injected into the extracting cartridge.

A loading mechanism holds at least one extracting cartridge provided with a filter member, at least one waste liquid vessel for accommodating a discharged liquid of a sample liquid and a discharged liquid of a washing liquid, which discharged liquids have been discharged from the extracting cartridge, and at least one recovery vessel for accommodating a recovery liquid, which contains a recovered nucleic acid and has been discharged from the extracting cartridge. A pressurized air supplying mechanism introduces pressurized air into the extracting cartridge. A liquid injecting mechanism injects each of the washing liquid and the recovery liquid into the extracting cartridge.

The method and extractor relate to dentistry and are intended for extraction of metal instruments fragments from a root canal of the tooth, as these instruments may be broken and may get stuck here, for example, during endodontic treatment. According to the invention, two insulated metal electrodes assembled as a cylinder are inserted into the root canal until electric contact with the fragment to be extracted. Then electric current impulse is ran through the circuit formed by the first electrode, metal fragment and second electrode; the intensity and duration of the electric impulse shall be sufficient for welding of the fragment to the electrodes by means of heating at the contact points; this time a heating of the surrounding tissues remains at the physiologically acceptable level; afterwards the electrodes are extracted from the root canal together with the fragment. Depending on a clinical situation, electrodes of various size and configuration are used. Electric impulse is generated by the unit comprising a capacitor chargeable by a battery and dischargeable in pulsed mode via controlled electronic switch. The unit also has an indicator of contact resistance between the fragment and the electrodes for a better alignment of their relative positions.

The invention discloses an automatic test script generation system and method based on train control engineering data, according to the scheme, the ground train control engineering data can be quicklyand efficiently extracted and stored, a train control engineering data test script can be automatically generated, errors caused by manual compiling of the train control engineering data test scriptby the test personnel can be greatly reduced, the time for manufacturing the test script is shortened, and the work efficiency is improved. The line train control engineering data is stored in a database, and a unified line train control engineering data management system is constructed, efficient management of the line train control engineering data is achieved, and the user can further conveniently analyze and process the line train control engineering data.

The invention discloses a local deformation analysis method based on building point cloud curved surface feature constraints, and the method comprises the steps: firstly carrying out the preprocessingand data segmentation of obtained building dense point cloud data, and obtaining the point cloud data of each surface of a building; secondly, performing curved surface feature recognition on the segmented point cloud data, judging the curved surface type of the surface of the building, and performing curved surface fitting calculation on the point cloud data according to the curved surface typeto obtain curved surface feature parameters of each surface of the building; then, according to the characteristic parameters of the building curved surface, the size constraint and the structure constraint of the building curved surface are calculated; and finally, judging the spatial position relationship between the building curved surfaces according to the building curved surface feature constraint relationship, and analyzing the local change between the curved surfaces. According to the method, the local deformation conditions of different parts of the building can be judged, the safety of the building is analyzed and evaluated from multiple local angles, and the accuracy and reliability of building deformation analysis are improved.

The invention discloses a swinging combing corn-ear-picking device. The swinging combing corn-ear-picking device comprises a machine frame with a left machine wall and a right machine wall, at least one rotating combination crankshaft is horizontally installed between the left machine wall and the right machine wall, at least one end of the combination crankshaft is connected with another crankshaft through a connecting rod to form a four-bar linkage mechanism, the upper end of another crankshaft is hinged to the machine walls through a pin shaft, the position of the pin shaft is higher than the position of the top end of the combination crankshaft, and comb teeth evenly distributed at intervals are horizontally installed on the combination crankshaft. The comb teeth are driven by the combination crankshaft to enable free ends of the comb teeth to swing vertically. The swinging combing corn-ear-picking device is simple and reasonable in structure, light in gravity and small in energy consumption, corn ears can be picked off rapidly and effectively, and the picked corn ears have few lagging covers and do not need peeling.

The invention discloses a vegetable leaf disease image segmentation method and system and a computer readable storage medium. The vegetable leaf disease image segmentation method includes the following steps that 1, superpixel clustering processing is conducted on vegetable leaf images to obtain superpixel segmentation images; 2, significance region detection processing is conducted on the superpixel segmentation images to obtain lesion significance images; 3, the lesion significance images are processed to obtain non-lesion pixel sets; 4, region growing an region merging are conducted on pixel points in the non-lesion pixel sets to obtain lesion areas and normal areas of the vegetable leaf images. By the adoption of the vegetable leaf disease image segmentation method and system and the computer readable storage medium, leaf diseases in greenhouses can be rapidly and effectively detected and extracted under the conditions that no chemical reagents are in use and diseased vegetable leaves are not damaged, and therefore the vegetable leaf disease image segmentation method and system and the computer readable storage medium can be well applied in monitoring greenhouse vegetable diseases.

The invention provides a disease symptom extraction method based on an AC automaton, and the method comprises the steps: 1, constructing a dictionary tree through using a symptom word dictionary; 2, constructing a failure pointer to implement an AC automaton algorithm; 3, converting the format of electronic medical record information into an UTF-8 encoding format; 4, performing the matching of thesymptom words in the electronic medical record information through the AC automaton algorithm: performing the marking and extracting the symptom words if the complete matching is achieved, and continuing to read the electronic medical record information until a termination symbol is read; 5, taking a failed node up along a parent node of the location in the symptom dictionary tree if the matchingof one or more words is achieved but the successful matching is not achieved, and switching to step 4. The method can effectively and quickly extract symptom words in the unstructured electronic medical record, thereby facilitating the research of automatic monitoring of adverse drug reactions, and facilitating the design and optimization of the spontaneous reporting system for adverse drug reactions.

The invention discloses a face feature data obtaining system. The system comprises a comparison unit, an encoding unit, a calculation unit, a calibration unit and a combination unit, wherein the comparison unit obtains and compares grey values of pixel points and surrounding pixel points of a face image in an image library; the calculation unit is used for calculating grey difference value codes in a local binary pattern so that feature vectors in the horizontal direction and feature vectors in the vertical direction can be obtained. The face feature data obtaining system can well meet requirements of an on-line network system for the calculation speed and the recognition speed of a face recognition algorithm. Besides, grey difference value codes obtained by means of the face feature data obtaining system are more accurate, and the recognition rate is much improved though calculation complexity is not improved.

The invention relates to a method for extracting and purifying baicalin from radix scutellariae. A flash extraction method is adopted to extract the radix scutellariae, the extract is concentrated, apolymeric flocculant is added into the concentrated liquid for absorbing and clarifying, the supernatant liquid is continuously concentrated, and acid is added for adjusting acidity, so that the high-purity baicalin is obtained. The preparation process is simple and convenient to operate as well as energy-saving and environmentally-friendly; the product is free from residue of toxic solvents; themethod is suitable for industrial production of the high-purity baicalin by utilizing the radix scutellariae.

The invention discloses a concrete pile head crushing device. The device comprises a machine body, a movable base and supporting arms, wherein the movable base is arranged at the bottom of the machinebody, rolling wheels are installed at four corners of the bottom of the movable base, and the supporting arms are welded on the two sides of the upper surface of the movable base; a rotating shaft ishorizontally arranged at the upper part of the machine body, and the machine body is characterized in that the left end of the rotating shaft is rotationally connected with the supporting arms on theleft side, and the right end of the rotating shaft penetrates through the supporting arms on the right side and extends to the right side of the machine body; and a first servo motor is arranged on the right upper portion of the machine body, the right end of the rotating shaft is welded with an output shaft of the first servo motor, the rotating shaft is provided with two first bevel gears withthe same size, an inner threaded pipe is vertically arranged below the rotating shaft, and the lower end of the inner threaded pipe is connected with a screw rod in a rotating mode. According to the device, the design is reasonable, the pile head which can be crushed is quickly realized, time and labor are saved, the construction difficulty is lowered, the life safety of constructors is guaranteed, and the device is suitable for popularization.

The invention discloses a fast shift invariant CPD (canonical polyadic decomposition) method applicable to multi-testee fMRI (functional magnetic resonance imaging) data analysis, and belongs to the field of medical signal processing. Based on a shift invariant CPD algorithm, testee shared SM (spatial map) components, shared TC (time course) components and all testee strength are updated and estimated by an alternating least square method, high-dimensional shared SM components and original multi-testee fMRI data are subjected to matrix multiplication and conversion into low-dimensional data without affecting time delay estimation performances, so that algorithm operation is accelerated, and operation memory is reduced. Needed memory is obviously reduced, and task related components of taskportion multi-testee fMRI data can be rapidly and effectively estimated.

The invention belongs to the technical field of food quality and safety detection, and particularly discloses a fluorogenic quantitative PCR detection kit and detection method for detecting the mass percent of the beef component in a mixed meat product. The kit comprises a total DNA extraction reagent, a DNA purification reagent, a 18S fluorogenic quantitative PCR premixed liquid reagent, a Beef fluorogenic quantitative PCR premixed liquid reagent and a standard substance. The detection method includes the steps of pretreatment on a sample to be detected, DNA extraction and purification, fluorogenic quantitative PCR reactions and detection. The kit can be used for quantitatively determining the mass percent of the beef component in the mixed meat product and has the advantages of being convenient to use, low in cost and high in specificity and sensitivity, the detection time is short, and the extraction reagent is safe.

In a method for extracting microbial DNA from milk, the extracted DNA can be directly used for PCR amplification. The method includes the following steps: treating milk with TE solution, fully disrupting microbial cells by bead milling, immobilizing proteins in the middle layer between the aqueous and organic phases with high-vacuum silicone grease so as to prevent impurities in the middle layer from entering the aqueous phase, etc. The extracted DNA has a high degree of intactness, high concentration and purity.

The invention belongs to the technical field of container cleaning, and particularly relates to a drawing platform and a cleaning detection method using the same. Aiming at shortcomings in the prior art, the invention provides a method for completely taking out liquid injected into a container during cleanliness inspection in the closed container, and the problems that cleaning liquid cannot be completely taken out of the container in the industry, cleanliness in the container cannot be accurately tested, and meanwhile, foreign matters such as oil stains, sewage and dust impurities entering the closed container cannot be quickly and completely cleaned, so that the container is scrapped are solved. The drawing platform comprises a case, wherein a pressure gauge and a power switch are arranged on one side of the case, an operation table is arranged in the case, a conical bottle and a detected object are arranged on the top surface of the operation table, a rubber plug is arranged at thetop of the conical bottle, a liquid inlet pipe and a liquid outlet pipe are arranged on the rubber plug, the liquid inlet pipe is connected with one end of a liquid inlet rubber pipe, the liquid outlet pipe is connected with one end of a liquid outlet rubber pipe, and the other end of the liquid inlet rubber pipe is connected with the detected object.

The invention provides a defoaming type stirring device, and relates to the field of production of textile strips. The defoaming type stirring device comprises a cover body, a barrel body, a foam pumpand a defoamer; the cover body and the barrel body are detachably connected, and the cover body comprises a cover main body, a rotating cylinder and foam sucking pipes; the rotating cylinder is rotatably embedded in the cover main body and driven by a driver, the side, close to the barrel body, of the rotating cylinder protrudes to be in a conical shape, and the degree of the semiapex angle corresponding to the side is 55-85 degrees; one ends of the foam sucking pipes are attached to the conical wall of the rotating cylinder and extend in the circumferential direction of the conical wall, themultiple foam sucking pipes are evenly arranged in the circumferential direction of the conical wall at intervals, and the other ends of the foam sucking pipes extend to the side, away from the barrel body, of the rotating cylinder and communicate with a sucking-in opening of the foam pump; and the other end of the foam pump communicates with an inlet of the defoamer, and a purified liquid outletof the defoamer communicates with the barrel body. The defoaming type stirring device is simple in structure and convenient to use, and has the quite high stirring efficiency and stirring effect, meanwhile, foam is effectively eliminated, and the positive effect is achieved on improving the production efficiency.

The invention relates to a method for extracting and purifying total anthraquinone from rheum officinale. According to the method, rheum officinale is extracted by adopting a flash extraction method, the extracted solution is concentrated, acid is added into the concentrated solution for hydrolysis, then the hydrolysate is purified by adopting a macroporous adsorption resin, and thus the high-purity free total anthraquinone of rheum officinale is obtained. The preparation process is easy and convenient to operate, and is energy-saving and environmentally friendly, no residue of a toxic solvent exists in the product, and the method is suitable for the industrial production of the free total anthraquinone of rheum officinale by adopting rheum officinale.