40results about How to "Big room for improvement" patented technology

The invention relates to a multi-document auto-abstracting method facing to inquiry, which comprises the following steps: performing preprocessing on the inquiry and documents; performing topic segmentation and semantic paragraph clustering on the preprocessed documents to obtain subtopics; expressing the inquiry and the sentences in each of the subtopics in the form of a word frequency vector, and calculating the correlation measurement of the inquiry and the subtopics; screening the subtopics according to the correlation measurement of the inquiry and the subtopics, sequencing the subtopics according to the importance of the subtopics, and selecting the front T important subtopics to obtain an ordered sequence of the subtopics correlative with the inquiry; and circularly obtaining representative sentences from the subtopic sequence in turn, and connecting the representative sentences together to generate an abstract. The method uses the topic segmentation technique so that the abstract is in a limited length range and comprises the important information in a document set as much as possible, provides more targeted services, can adjust the content of the abstract according to a user inquiry topic, and can achieve the interactions with users.

The invention discloses a method for separating and extracting sterol from wool fat. The method comprises the following step of: (1), carrying out saponification reaction on the wool fat in an alkali-alcohol solution; (2), carrying out saponification double decomposition on calcium chloride and the product obtained in the last step to obtain a calcium soap and wool alcohol; (3), filtering the obtained filtrate in vacuum, extracting under refluxing filter residue by utilizing low-level fatty alcohol, collecting filtrate and adding fatty acid to the filtrate to remove the residual calcium ion; (4), acidifying and bleaching filter cake to obtain the wool acid; and (5), carrying out recrystallization to obtain a refined product. The steps are carried out, so that the purity of obtained cholesterol is higher than 93% and the yield is more than 78%. The method disclosed by the invention has the advantages that the obtained product is high in purity and yield, excellent in color and crystal form and free of peculiar smell, the process flow is simple and easy to operate, and the solvent and the chromatography media in the process flow can be recycled without generating wastes, so that the process cost is low and the industrial production can be realized.

The present invention relates to a temperature-resistant type transfer aluminized paper and its production process. Said process successively includes the following steps: coating release layer on the film; coating anchoring layer on release layer; vacuum aluminizing on the anchoring layer; coating adhesive on the aluminized layer; then making them be combined with paper; stripping film from release layer so as to obtain the invented temperature-resistant type transfer aluminized paper.

The invention provides an image super-resolution and image quality enhancement method and relates to the technical field of digital image processing in a space remote sensing imaging system. The image super-resolution and image quality enhancement method solves the problems that optimization elements which can be utilized are less, the improvement space of the image quality is limited, and accordingly the image quality cannot be effectively improved in the existing Wiener filtering image restoration method. The image super-resolution and image quality enhancement method comprises utilizing a light beam splitter to collect in-focus images and out-of-focus images in two channels respectively and collect N staggered in-focus images which enable 1 / N pixels to be staggered in the horizontal and vertical direction relative to the in-focus images; performing PD (Phase Diversity) processing on the in-focus images and the out-of-focus images; utilizing a conjugate gradient algorithm to obtain an aberration coefficient; obtaining restored target images after the PD processing and calculating an objective function; performing Wiener filtering processing on the staggered in-focus images and the restored target images; and performing sub-pixel integration on the two restored images to obtain a restored image with ultrahigh resolution. The image super-resolution and image quality enhancement method achieves super-resolution and high definition of images and improves the resolution by 1.4 times.

The invention discloses an underwater IOT (Internet of Things) system of VLC (Visible Light Communication) based on blue LEDs (Light Emitting Diodes). The underwater IOT system is characterized in that underwater devices, underwater sensors, underwater terminals or underwater gateways are used as node units; the underwater IOT system is formed by the multiple node units according to a certain network interconnection topological structure, and the VLC based on the blue LEDs is used as an information transfer means between every two node units; the network interconnection topological structure of the underwater IOT system comprises a basic chain type network, a daisy chain type network or an AdHoc network. In the underwater IOT system disclosed by the invention, a high-brightness blue LED is adopted as a light emitting unit carrying a bidirectional blue LED receiving and transmitting module, so that three problems of low underwater communication reliability, high cost and high-frequency modulation difficulty are solved; a silicon-PIN photodiode having high flexibility in a visible light wave band is adopted as a light receiving unit, so that the problems of difficulties in realizing high-speed response, low price and high reliability are solved; through the measures, a high-speed information interconnection IOT system is provided for devices and terminals in underwater movement and underwater operation.

The invention relates to a manufacturing method of an N-type TOPCon solar cell. The manufacturing method comprises the following steps: a, double-sided texturing; b, single-sided spin coating; c, single-sided oxidation: forming a boron-containing silicon oxide layer on a spin coating surface; d, forming a heavily doped region substrate and a lightly doped region substrate: forming an organic masklayer for protecting a heavily doped region at a position corresponding to the metal gate line by using a mask mode, completely removing the boron-containing silicon oxide layer and the boron source outside the coverage area of the organic mask layer by using HF, and then removing the organic mask layer; and e, heavy doping and light doping: specifically, completely pushing the spin-coated boron source into the silicon substrate through a tubular low-pressure diffusion method, forming a heavy doping region is formed, carrying out whole-surface source-through deposition to form a lightly dopedregion, and finally, carrying out high-temperature oxidation to form a BSG layer with the thickness of 80-100nm, and then carrying out normal subsequent processes. According to the invention, a boronselective emitter can obtain higher photoelectric conversion efficiency, so that the conversion efficiency of the solar cell is improved.

A pure water supplier is connected with an inlet of the nitrogen dissolving unit. Further, there is another inlet formed in the nitrogen dissolving unit, and this inlet is connected with a nitrogen gas supply source. Nitrogen gas from the nitrogen gas supply source is dissolved in pure water supplied from the pure water supplier, thereby producing nitrogen-rich pure water. Thus nitrogen-rich rinsing liquid is produced immediately prior to rinsing. This reduces the concentration of dissolved oxygen in the rinsing liquid. This also slows down an increase of the concentration of dissolved oxygen in the rinsing liquid which has been discharged at a nozzle.

The invention discloses a method for preparing graphene from amorphous carbon. The method comprises the following steps: preheating the amorphous carbon; adding a catalyst to the preheated amorphous carbon; pyrolyzing the amorphous carbon under the action of the catalyst; depositing cracked carbon atoms on a layered carrier to obtain graphene containing the carrier; and removing the carrier to obtain graphene. The method for preparing graphene from amorphous carbon with wide sources has the advantages of low cost, convenient obtaining of the above raw material, and high resource utilization rate; and the method is directly realized through a screw extruder, and has great industrial prospect.

The invention belongs to the field of production of renewable spices and foods, and chemical raw materials and in particular relates to a method for producing nerol through microorganism fermentation.The method comprises the following step: expressing neryl pyrophosphate synthase and nerol synthase genes in microorganisms to produce the nerol. By adopting the method provided by the invention, thenerol is directly synthesized through modifying the microorganisms and can be obtained, without the need of chemical synthesis, and the pollution to the environment is reduced; the method is a renewable, low-consumption and environment-friendly technology. The method for producing the nerol through the microorganisms can be directly applied to industrial production.

The invention discloses portable small satellite power supply and distribution testing equipment. The portable small satellite power supply and distribution testing equipment includes a portable PXI integrated assembly, a highly integrated interface adapting module and a power supply module. According to the portable small satellite power supply and distribution testing equipment, an integrated control crate based on PXI is adopted for the first time, power supply and distribution cable parameter measuring, instruction controlling, a display module, a controller and a display are integratedlydesigned, interconnection links among all the modules are reduced, time for system configuration, building and preparation is greatly shortened, the test efficiency is improved, and manual operation is reduced.

The invention relates to a crane and a transport wagon using the crane, wherein a hanging bracket is assembled on a main beam of the crane in a guiding manner in a left-right direction movably, a reversing fixed pulley is arranged on the hanging bracket, a flexible transmission member is fixedly connected to the left end of the main beam, the flexible transmission member bypasses the upside of the reversing fixed pulley, the right end of the flexible transmission member extends to the right end of the main beam, a hanging appliance is assembled to the flexible transmission member at the left side of the reversing fixed pulley along an extending direction of the flexible transmission member, and a lifting motor used for tightening or releasing the flexible transmission member to lift or put down the hanging appliance is arranged at the right end of the main beam. When the crane is used for hanging a weight, the flexible transmission member is pulled to be tightened by virtue of the lifting motor so that a movable pulley is lifted by virtue of the reversing fixed pulley, the movable pulley can be lifted to a height which is the same with that of the reversing fixed pulley; compared with the prior art, the crane has the advantages that as long as the movable pulley or a lifting hook is lifted to the lower end of a coiling block, the lifting space is relatively large, and the super clearance can be realized.

A tandem wing layout solar long-endurance and high-altitude aircraft comprises a tandem wing system front wing, a tandem wing system rear wing 3, a vertical empennage 6 and a plane body 4, motors are arranged at the left and the right of the front wing, an electrical system 1 is arranged in the plane body, solar cell panels 3 are arranged in the front wing and the rear wing, and the surfaces of the front wing and the rear wing use transparent film sheaths. The problem of insufficient power is solved through increasing the laying area of the solar cell panels. Pneumatic layout of the solar plane with excellent pneumatic performances provided by the invention makes the solar plane have a good structure layout. The tandem wing solar unmanned plane has the following advantages: the layout configuration has the advantages in structure and quality, and the flight induction resistance of the airplane wings is obviously reduced through changing the lift distribution of the two front wing and the rear wing; the pneumatic performances of tandem wing layout are better than those of single-wing layout, so the upside potential of the pneumatic performances is large; and the laying of the solar cell panels is convenient, the geometric dimension is small, and the tandem wing solar unmanned plane is simple to make and has high practicality.

The invention relates to a coaxial type all-terrain wheel-legged mobile robot comprising a vehicle body, front legs symmetrically arranged at two sides of the front of the vehicle body, rear legs symmetrically arranged at the rear of the vehicle body and a control part arranged on the vehicle body and used for realizing the control of the front legs and the rear legs, wherein the front legs and the rear legs are connected to the vehicle body through metallic rudder disks; the front legs consist of front main arm lifting motors, front wheel steering motors, the front metallic rudder disks, front hub motors, front right-angle supports, front U-shaped supports, front motor holders, front wheels, front leg connectors and front steering motor holders; and the rear legs consist of rear main armlifting motors, rear wheel steering motors, the rear metallic rudder disks, rear hub motors, rear right-angle supports, rear U-shaped supports, rear motor holders, rear wheels, rear leg connectors andrear steering motor holders. The coaxial type all-terrain wheel-legged mobile robot has higher obstacle-negotiation ability and wider adaptability under complex road conditions.

The invention relates to an OSC, in particular to the application of SrTiO3 of perovskite oxide in an OSC. According to the application, the SrTiO3 of perovskite oxide serves as a cathode modifying layer of the OSC. The OSC prepared by using the SrTiO3 of perovskite oxide as the cathode modifying layer shows the stable photovoltaic property curve. An SrTiO3 nano-particle of perovskite oxide is prepared according to a solution method, annealing is carried out at different temperatures, then the SrTiO3 nano-particle of perovskite oxide is coated with an active layer of the OSC in a spiral mode, the active layer is plated with electrodes, and then the complete OSC is obtained. An acid anode modifying layer PEDOT: PSS in a normal structure is avoided, namely, the recombination action on a current carrier from the interface defect of the PEDOT: PSS / the active layer is avoided, and the stability of the OSC is potentially enhanced.

The invention provides a flexible pressure sensing structure and a flexible pressure sensor, and solves the technical problems that the sensitivity of an existing piezoresistive pressure sensor is reduced along with the increase of pressure, and the stability is poor. The flexible pressure sensing structure comprises a conductive film, an upper electrode and a lower electrode, wherein the upper electrode and the lower electrode are respectively adhered to the upper surface and the lower surface of the conductive film and are arranged in a face-to-face staggered manner; when the flexible pressure sensing structure is under pressure, the conductive film generates strain along the direction vertical to the electrode plane, so that the resistance is increased, that is, when the pressure is applied to the structure, the stress of the upper electrode acting on the conductive film enables the film to pass through the hollow part (namely the gap) between the electrodes to generate strain vertical to the electrode plane, and the resistance of the sensing unit is increased along with the increase of the pressure.

The invention discloses a differential mode-locked laser phase-locked loop, comprising a phase discriminator, a proportional-integral loop filter, a differential loop filter module, a voltage-controlled oscillator, a photodetector and a band pass filter that are connected in sequence. The band pass filter is connected with the phase discriminator. The invention provides a scheme of multiple differential loop filter phase-locked loop. In the phase-locked loop, the two or more differential loop filters are used to compensate for the phase lag caused by a piezoelectric transducer and a high-voltage driver, thereby improving the upper limit of the bandwidth of the phase-locked loop by more than one order of magnitude, greatly expanding the improvement space for the phase-locked bandwidth whileensuring the stability of the phase-locked loop.

The invention discloses an aviation bus test card based on FlexRIO. The aviation bus test card is connected between an aviation bus and an avionics test system to implement tests for the aviation bus. The aviation bus test card comprises an adapter and a FlexRIO FPGA card which are connected to each other, wherein the adapter is connected with the aviation bus, and the FlexRIO FPGA card is connected with the avionics test system through a PXI bus. The aviation bus test card disclosed by the invention has the beneficial effects as follows: the adapter disclosed by the invention can be adapted to various FlexRIO FGPA cards, has strong universality, can make good use of the existing test resources, ensures that the utilization rate of the resources can be increased, also adopts a common functional IP module in the FlexRIO FGPA cards, and ensures that the reusability of the technology and the maturity of products can be improved; and as the existing FlexRIO FGPA cards are adopted, when the aviation bus test card needs to be modified or upgraded, only the adapter part needs to be modified or upgraded, and thus a large improvement and promotion space can be achieved, the development of the products can be accelerated, and the difficulty of the development can be reduced.

The invention discloses a preparation method of polyurethane waterproof paint. The preparation method comprises the following steps: S1, dehydrating and cooling 15.04-17.8 parts by weight of polypropylene oxide glycol and 1.54-2.81 parts by weight of propylene oxide to 68-70 DEG C, then mixing with 20 parts by weight of diphenylmethane diisocyanate, raising the temperature to 76-78 DEG C, reactingfor 3.5-4.5 hours, keeping stirring in the reaction process to obtain a prepolymer; adding a surfactant and a solid filler into a ball mill, conducting ball milling for 45-60 minutes, keeping the ball milling temperature at 90-98 DEG C, then cooling to 40-50 DEG C, adding 0.5-0.7 part by weight of a defoamer, 12-15 parts by weight of methyl ethyl ketone and 0.6-0.8 part by weight of dioctyl phthalate, conducting ball milling for 30 minutes to obtain a component A; and sequentially adding 1.7-2.5 parts by weight of polyurethane acrylic resin, 17-19 parts by weight of the component A, 0.8-1.3 parts by weight of o-phenylenediamine, 0.021-0.023 part by weight of di-n-butyltin dilaurate and 0.6-1.1 parts by weight of dibutyl phthalate into 20-24 parts by weight of a prepolymer, and stirring evenly at the temperature of 52-55 DEG C to obtain the waterproof paint. The preparation method solves the problem of poor mobility of the existing single-component polyurethane waterproof paint.

The invention discloses a non-contact man-machine interactive space 3D display device and a display control method. A composite technique of combining infrared control and image identification is adopted. An infrared control technique is that infrared ray signals received by a receiver are changed through influencing propagation of infrared rays, further digital signals output by the receiver generate hopping transition, the signals are input in a computer 4, and therefore, corresponding assemblies of a video player are controlled. The image identification technique is that when fingers go deep into a special region, an image collection camera photographs images of collected gestures and transmits the images to the computer through a USB interface, a built-in function is invoked by the computer for identifying and analyzing the transmitted images and changing the images on the display screen, and a purpose of controlling the images by an audience is realized. The method and the device have the advantages that non-contact interaction is realized by using simple and available raw materials, the numbers of transmitting tubes and receiving diodes are increased, more complex gestures can be identified, and the method and the device has great development prospects.

The application of perovskite oxide SrTiO3 in organic solar cells relates to an organic solar cell. The application is to use the perovskite oxide SrTiO3 as a cathode modification layer of an organic solar cell. Organic solar cells prepared with perovskite oxide SrTiO3 as the cathode modification layer exhibit stable photovoltaic characteristic curves. The titanium oxide SrTiO3 nanoparticles are prepared by a solution method, annealed at different temperatures, and then the active layer of the organic solar cell is swirled on the titanium oxide SrTiO3 nanoparticle layer, and electrodes are plated to form a complete battery. The use of the acidic anode modification layer PEDOT:PSS in the upright structure is avoided, that is, the recombination of the PEDOT:PSS / active layer interface defects on the carriers is avoided, which has a potential enhancement effect on the stability of the organic solar cell.

The present invention relates to a temperature-resistant type transfer aluminized paper and its production process. Said process successively includes the following steps: coating release layer on the film; coating anchoring layer on release layer; vacuum aluminizing on the anchoring layer; coating adhesive on the aluminized layer; then making them be combined with paper; stripping film from release layer so as to obtain the invented temperature-resistant type transfer aluminized paper.

The invention discloses a bottom die movement control mechanism of a rotary bottle blowing machine die rack. The bottom die movement control mechanism comprises a die rack support, a swing arm, a horizontal guide rail and a bottom die support, wherein a crank connecting rod structure capable of driving the bottom die support to reciprocate along the vertical direction is arranged between the swing arm and the bottom die support; a ball sliding block capable of restricting the bottom die support to move along the vertical direction and a ball guide rail are arranged between the bottom die support and the die rack support. By virtue of reciprocating swing of the swing arm along the locus of the horizontal guide rail, the crank connecting rod structure drives the bottom die support to reciprocate along the vertical direction; by use of only one horizontal guide rail, the opening and closing of a forehead die rack on the die rack support and the ascending and descending of the base on the bottom die support are completely controlled, a bottom die guide rail which is traditionally used for controlling the ascending and descending of the bottom die support is omitted; under a condition of same rotation speed, the noises and vibration of the bottom die movement control mechanism are more less than those generated by a die rack when two different guide rails are respectively used for controlling respective movement of the movement bottom die and the opening and closing of the die rack in the prior art, so that a great improvement space is provided for the operation reliability and speed of machines.

The invention discloses an underwater IOT (Internet of Things) system of VLC (Visible Light Communication) based on blue LEDs (Light Emitting Diodes). The underwater IOT system is characterized in that underwater devices, underwater sensors, underwater terminals or underwater gateways are used as node units; the underwater IOT system is formed by the multiple node units according to a certain network interconnection topological structure, and the VLC based on the blue LEDs is used as an information transfer means between every two node units; the network interconnection topological structure of the underwater IOT system comprises a basic chain type network, a daisy chain type network or an AdHoc network. In the underwater IOT system disclosed by the invention, a high-brightness blue LED is adopted as a light emitting unit carrying a bidirectional blue LED receiving and transmitting module, so that three problems of low underwater communication reliability, high cost and high-frequency modulation difficulty are solved; a silicon-PIN photodiode having high flexibility in a visible light wave band is adopted as a light receiving unit, so that the problems of difficulties in realizing high-speed response, low price and high reliability are solved; through the measures, a high-speed information interconnection IOT system is provided for devices and terminals in underwater movement and underwater operation.

The invention discloses a high-shear mixing and emulsifying device for paint and coating processing and a working method thereof. The device includes a plurality of stirring motors fixedly arranged on a workbench, and a first emulsification tank is constructed in the center of the workbench. One side of the first emulsification tank is installed and fixed with the second emulsification tank, both the first emulsification tank and the second emulsification tank can be fixed in the workbench body by welding, the first emulsification tank and the second emulsification tank The interior of each is equipped with a mixing mechanism; the high-shear emulsification device of the present invention uses the structure of the steel frame umbrella hoop of the mixing mechanism, the first steel frame arm, the second steel frame arm, a scraping rod, an inwardly facing stirring paddle, and a blowout cap. It is instantly subjected to strong filling, stirring and shearing action. Through the comprehensive remixing structure, the secondary paint coating can be rotated again and centrifugally, and the reaction efficiency and quality preservation effect can be accelerated by adding the function of the designed heat drying lamp. Viscosity, humidity, and temperature control can all be improved to a certain extent.

The invention discloses a precipitation phenomenon instrument software quality control method. The method comprises the following steps: establishing a discrimination model according to observation data of 20 stations capable of representing rainfall conditions in the north and south of 9 provinces and cities; receiving original data; judging data; correcting abnormal data; outputting correction data. The invention also discloses a precipitation phenomenon instrument software quality control system. The system comprises a global control unit; a peripheral communication unit; a data acquisitionunit; a data management unit; a data determination unit; a model library; a statistical analysis and evaluation unit; and a data output unit. By means of the method and system, rainfall types of allplaces can be objectively fed back, false alarms and false alarms are removed to a certain degree through the rainfall phenomenon instrument after quality control, the recognition accuracy is improved, and the workload of manual intervention or correction is reduced.

The invention provides a method for determining a running frequency of a heat discharge fan of a metro shielding door system. A tunnel temperature sensor is adopted for monitoring a tunnel wall surface temperature t in real time; a temperature rise rate is calculated; and when the temperature rise rate is greater than a temperature rise rate threshold, the heat discharge fan is started. Accordingto the method, a control policy for a tunnel heat discharge fan and a large system fan is optimized mainly; policy optimization is performed in an initial stage, so that energy is saved by about 7.7%and electricity is annually saved by 388,000KWh in total; the policy optimization is performed in a recent stage, so that the energy is saved more remarkably and is saved by about 17.6%, and the electricity is annually saved by 1,161,000KWh in total; and the policy optimization is performed in a future stage, so that the energy is saved more remarkably and is saved by about 21.2%, and the electricity is annually saved by 1,950,000KWh in total.

The invention belongs to the field of biological medicine, and discloses a neoantigen prediction method, which comprises the following steps: collecting a sample of a neoantigen to be predicted, extracting genome DNA and RNA of the sample, carrying out whole exon sequencing and transcriptome sequencing, carrying out HLA typing analysis according to whole exon sequencing data of the sample, and carrying out RNA expression level detection according to transcriptome sequencing data. Comparing and splicing whole exon sequencing data with a human reference genome, and analyzing somatic mutation of tumor-normal paired samples to obtain a mutant peptide chain sequence and a flanking sequence thereof; and inputting the HLA typing, the mutant peptide chain sequence and the flanking sequence thereof, and the gene expression level value into a deep learning model to obtain a predicted neoantigen. The invention further provides a neoantigen prediction system, a corresponding device and application. The accuracy of neoantigen prediction can be remarkably improved.