48results about How to "Time-consuming optimization" patented technology

A method for reconstruction of a 3D volume from a set of projection images recorded by a tomography apparatus using penetrating radiation in the field of dental medical applications takes into account a given value of at least one parameter. Simulated projection images are generated which correspond to at least a subset of the recorded projection images by simulating a projection of the penetrating radiation through the reconstructed 3D volume taking into account said given value of the at least one parameter. A re-projection error is determined by comparing the simulated projection images (with the corresponding recorded projection images. The re-projection error is then minimized by changing the value of the at least one parameter and by iterating over the above steps.

A finished molded metal part is produced by an injection molding system includes a feeder in which a metal is melted and a first chamber into which a desired amount of melted metal is introduced. The molded metal parts can have extremely fine dimensions, small thicknesses, and indented or protruding surface features that are molded with such low porosity that no further milling/finishing operation is required before the part is used in its finished state.

A network management system (100) includes a setting module (10), a scheduling module (20), a connection module (30), and a detection module (40). The setting module configures parameters of network devices (200) to be tested. The scheduling module schedules testing for at least one network device. The connection module connects to the network device a first testing time. The detection module detects whether the network device is idle. If the network device is idle, the detection module transmits at least one testing parameter to the network device.

The invention provides a digital image classification method. Firstly, the method executes a discrete cosine transform aiming at a candidate region of a digital image for producing a group of discrete cosine transform coefficients. Then, the method produces a group of texture parameters according to the group of discrete cosine transform coefficients. Finally, the method produces a classification result of the digital image according to the group of texture parameters.

The invention discloses a skeleton line extraction method based on a projection matching group, which comprises the following steps: mapping tooth point cloud to a two-dimensional plane by utilizing a grid projection technology, denoising by utilizing morphological operation to obtain a tooth structure, and then obtaining a three-dimensional tooth skeleton line by utilizing a coordinate matching group technology; compared with a traditional method, the skeleton line extraction method provided by the invention has the advantages that the effect and the consumed time are obviously improved, and the accuracy and the reliability of overlapping region positioning are greatly improved.

The invention discloses a fluorescent PCR (polymerase chain reaction) kit and a method for detecting 13 subtypes of a human papillomavirus. The kit comprises a PCR liquid, a PCR mixed liquid, a positive standard substance, an internal reference substance and a negative reference substance. According to the fluorescent PCR kit disclosed by the invention, a unique quadruple fluorescent quantitative PCR technology is adopted, PCR amplification primers and detection probes corresponding to the 13 subtypes of the human papillomavirus are respectively designed, six high-risk subtypes of the human papillomavirus are quantitatively detected in two tubes by one step in a typing mode, and unusual seven high-risk subtypes in the Chinese population which are detected in the typing mode are combined.

The invention discloses a laser additive manufacturing molten pool structure evolution in-situ observation device which comprises an environment chamber, a synchrotron radiation X-ray source, a laser and a plane detector, the environment chamber is communicated with a molecular pump, an infrared transparent window is arranged at the top of the environment chamber, and the environment chamber is located between the synchrotron radiation X-ray source and the plane detector. A first beryllium window and a second beryllium window are arranged on the side wall of the environment chamber. The invention discloses a laser additive manufacturing molten pool structure evolution in-situ observation method which comprises the following steps: (1) placing alloy powder to be measured on a powder bed, and then placing the powder bed in an environment chamber; (2) starting a synchrotron radiation X-ray source and a laser, meanwhile, recording an X-ray beam image when the powder is melted by a plane detector, converting the X-ray beam image into an X-ray beam projection picture and storing the X-ray beam projection picture in the computer; and (3) processing the projection picture by using image processing software. According to the invention, in-situ observation and on-line nondestructive testing of the molten pool structure evolution process in the additive manufacturing process can be realized.

The invention relates to the field of bioanalysis of analytical chemistry, and in particular relates to a device and a method for heterogeneous immunization rapid analysis. The device comprises a capillary tube, a reagent tube and a program-controlled micro pump which are sequentially connected into a channel, and the program-controlled micro pump drives all liquids in the capillary tube and the reagent tube. By using the characteristic of large specific area of the capillary tube, the capillary tube is used as a carrier of a heterogeneous immunoreactions, the incubating time of immunoassay is greatly shortened. The operation in an analysis implementation phase is greatly simplified, the time of on-the-site analysis is reduced, and the full-process automation of liquid control of the liquids in multiple steps of heterogeneous immunoassay is realized. Compared with the traditional heterogeneous immunoassay, the method is remarkably improved in time consumption and operation convenience.

The invention relates to a needle filter solid-phase extraction device for a metal organic framework filler, and belongs to the technical field of analytical chemistry sample pretreatment. According to the invention, a metal organic framework dispersion liquid is filled into a needle filter to prepare a solid phase extraction filter head, and a miniaturized solid phase extraction method taking a metal organic framework as an adsorbent and taking the needle filter as an extraction container is developed on the basis of solid phase extraction and adsorbent filling micro-extraction. According tothe method, estrogen can be rapidly enriched through pi-pi action, electrostatic adsorption, space matching and other actions, compared with traditional distributed solid-phase extraction, the extraction time is shortened, the use amount of an extraction agent is reduced, the operation steps are simplified, solid-liquid separation is facilitated, and the device has practical application value.

The invention relates to a nanoparticle single chain DNA amplification method based on streptavidin coating. The conventional PCR technology is suitable for double chain DNA amplification and enrichment; in single chain DNA amplification, problems that amplification products are mixed with double chain DNA, and the steps are complex are induced. According to the nanoparticle single chain DNA amplification method, nanoparticles coated by streptavidin are used for fixing biotin labeled PCR amplimers onto the surfaces of metal nanoparticles, and then single chain DNA amplification reaction is carried out. According to the nanoparticle single chain DNA amplification method, single chain DNA amplification is realized via irreversible combination of biotin with streptavidin coated nanoparticles,selective obtaining of sample DNA positive chains or inverse chain DNA can be realized, the nanoparticle single chain DNA amplification method is simple and rapid, is high in efficiency, and is capable of improving the amplification efficiency of single chain DNA obviously.

The invention discloses a method for preparing cellulose supported hollow SiO2 microsphere catalytic carrier. The method mainly comprises the steps of using the microsphere aggregates formed by polyelectrolyte polyacrylic acid in a poor solvent thereof as the mold, using ethyl silicate as the precursor, conducting hydrolysis and polymerization to obtain SiO2/PAA core-shell microsphere, centrifuging and washing the product to remove the polyelectrolyte polymer to form hollow SiO2 microspheres, and loading the hollow SiO2 microspheres onto cellulose to obtain cellulose supported hollow SiO2 microsphere catalytic carriers. The method for preparing cellulose supported hollow SiO2 microsphere catalytic carrier has the advantages that the method is simple and fast; the hollow SiO2 microspheres are scattered with uniform particle size; the preparation cost is low; the application value is high. The method uses natural cellulose as the support carrier, thus not only the degradable green materials are utilized, the environmental pollution is mitigated, but also at the same time, the cellulose macromolecule has good adsorbing function with good support performance.

The invention discloses an automatic detection waterproof air tightness and inflation protection method of an outdoor lamp. The automatic detection waterproof air tightness and inflation protection method of the outdoor lamp comprises the following steps that an air nozzle of an air extraction inflation mechanism and an air vent of the lamp are sealed; the lamp is filled with air and subjected toleakage detecting, the lamp is filled with the air through a compressor, and an air pressure difference value in the lamp is detected so as to judge the waterproof air tightness of the lamp; the lampis vacuumized and subjected to leakage detecting, and the lamp is vacuumized by the compressor to detect the air pressure difference value in the lamp so as to judge the waterproof air tightness of the lamp; the vacuumized lamp is filled with nitrogen; the nitrogen in a nitrogen tank is decompressed by a buffer gas tank first and then pressurized by the compressor, and the lamp with qualified waterproof air tightness is filled with nitrogen; and a vent hole is sealed with a waterproof joint. According to the automatic detection waterproof air tightness and inflation protection method of the outdoor lamp, the waterproof air tightness and inflation protection of the lamp are continuously carried out, the time consumption is short, the waterproof air tightness is detected under the positive pressure state and the negative pressure state of the lamp, the waterproof air tightness is quickly and effectively detected, and the detection accuracy is high; and the anti-oxidation of the lamp is good, and the service life of the lamp is prolonged.

The invention provides a high-precision drop real-time judgment system, which comprises a drop sensor arranged on a robot, a microprocessor, an adaptive filter, an acquisition module and a bus, the drop sensor is used for collecting an original drop signal of the robot; the acquisition module is used for receiving the original drop signal and generating original drop data; the microprocessor receives original drop data through a serial port; an embedded operating system is arranged in the microprocessor; the self-adaptive filter acquires original drop data through a serial port and filters white noise in the original drop data so as to generate filtered drop data; the microprocessor receives the filtering drop data through a serial port and outputs the filtering drop data to a decision endof the robot through a bus; the system is developed on the basis of a microprocessor platform, an original embedded operating system is improved, the processing performance and time consumption of athread pool are optimized, low power consumption and high real-time performance can be achieved, adaptive filtering denoising is conducted on a data layer, and the precision is high.

The invention discloses a capacitive touch screen signal receiving circuit. The circuit comprises N one-out-of-eight multiplexers, N operational amplifiers and N ten-bit AD converters, wherein one oneone-out-of-eight multiplexer, one operational amplifier and one ten-bit AD converter form a basic unit for receiving one path of signal; the one-out-of-eight multiplexers are enabled to be controlledto input signals for the operational amplifiesr; and a charge transfer method is used for detecting an induction capacitor, the operational amplifiers output following analog signals, the analog signals are converted into binary numbers with the bit width of ten bits through the ten-bit AD converters, and the binary numbers are transmitted to subsequent operation, so that multichannel analog signals are quickly and efficiently received and converted into digital signals in parallel. The capacitive touch screen signal receiving circuit is simple in basic unit structure, simple in repeated structure, high in reliability and high in transmission speed, and sufficient time is reserved for subsequent operation of the whole system.

The embodiment of the invention provides a feature processing method and device, and the method comprises the steps: carrying out the digital coding of an operation behavior under the condition that the terminal equipment detects the operation behavior of a user for the terminal equipment, and obtaining a corresponding behavior feature; storing the behavior features in a first feature pool, and configuring the plurality of service prediction models to perform corresponding service prediction by using the coded behavior feature sequence read from the first feature pool.

The invention belongs to the field of intelligent equipment, and discloses a content query method and device, electronic equipment and a storage medium, and the method comprises the steps: when a voice instruction is obtained, matching a high-frequency question method list with the voice instruction; when the matching is successful, performing content query based on prediction intention information obtained based on the voice instruction and a touch position on a learning page after the voice instruction is received; matching initial intention information obtained by recognizing the voice instruction with the predicted intention information; and when the matching is successful, carrying out content query. In combination with the characteristic that a high-frequency voice instruction is relatively fixed and regular when a user uses a smart eye to query, in the voice instruction recognition process, a voice recognition result is matched with a high-frequency instruction list in real time to predict the voice instruction intention of the user in advance, and the time consumption of a whole link is optimized in a mode of preposing the processes of fingertip positioning, content recognition, searching and the like.

The invention provides a touch panel module and an electronic computer; the touch panel module comprises a touch panel assembly, a towing bracket, an elastic member and a spacer; the towing bracket is arranged below the touch panel assembly, the elastic member is arranged between the touch panel assembly and the towing bracket, and the spacer is arranged between the elastic member and the touch panel assembly; when the touch panel assembly is touched and pressed, the touch panel assembly extrudes and pushes the spacer against the elastic member, so that the elastic member deforms and extends towards the perforation of the towing bracket. In addition, the invention further provides an electronic computer with the touch panel module.

The invention discloses a smoothening treatment method and a smoothening treatment structure for an outer scratch (scrape) of a vehicle body. The vehicle body has a shallow outer scratch which only reaches an original baked paint layer without damage to a primer on a made-up paint layer on the vehicle body. The scratch treatment structure comprises the made-up paint layer, a golden oil layer and a wax layer, wherein the made-up paint layer is formed by spraying a paint (a coating special for a vehicle) on a primer layer, and the primer layer can be ground before the paint is made up, and can also be not ground according to the circumstances; the golden oil layer is positioned above the made-up paint layer, and is constructed by spraying paint baking golden oil special for the vehicle after the made-up paint layer is cured; after the sprayed golden oil is cured, an adhesive tape is adhered beside the golden oil layer, and after the golden oil layer and the adhesive tape have the same thickness in a way of fine grinding with fine sandpaper, the adhesive tape can be removed, and the surface of the made-up paint layer is finely ground to be smooth; the wax layer is arranged above the golden oil layer in a covering way, and is formed above the scratch directly by polishing with wax special for the vehicle.