376results about How to "Various methods" patented technology

A process for producing a fine silver particle colloidal dispersion which can simply form conductive silver layers and antimicrobial coatings by screen printing or the like. The process is characterized by having a reaction step of allowing an aqueous silver nitrate solution to react with a mixed solution of an aqueous iron(II) sulfate solution and an aqueous sodium citrate solution to form an agglomerate of fine silver particles, a filtration step of filtering the resultant agglomerate of fine silver particles to obtain a cake of the agglomerate of fine silver particles, a dispersion step of adding pure water to the cake to obtain a first fine silver particle colloidal dispersion of a water system in which dispersion the fine silver particles have been dispersed in the pure water, and a concentration and washing step of concentrating and washing the first fine silver particle colloidal dispersion of a water system.

The invention relates to a technology for identifying and analyzing stratums in VR (Virtual Reality) geological environment. On the basis of data explanation and identification, the technology comprises the following steps of: (1) pretreating geological data; (2) identifying and constructing three-dimensional stratum models; and (3) visually analyzing and correcting space. Each step needs to be correspondingly verified and detected according to a space information quality detecting model. The invention provides a brand-new high-technology measure for geologists, which realizes the form representation (space representation) of the geological data by adopting three-dimensional stratum geometrical identification and multi-dimensional attribute identification and combining with a static simulation visualization technology and realizes the dynamic representation (space-time representation) of geological models by adopting application models related to physical rules, an identification and analysis method and knowledge representation and combining a dynamic simulation visualization technology, thereby finally realizing the reality sense construction of VR geological realities, and in the other words, the technology is used for simulating realizable geological environment in practice or geological environment actually difficult to realize or geological environment which can not be realized fundamentally in a VR environment generated by a computer.

The invention relates to the field of metamaterial devices and provides a switching-controllable THz wave metamaterial perfect absorber (MPA) and a control method thereof. The switching-controllable THz wave metamaterial perfect absorber comprises a substrate, an MIT (metal-insulator transition) layer positioned on the substrate, a dielectric layer positioned on the MIT phase change layer and metal opening resonance units positioned on the dielectric layer and being in cyclic arrangement, and the on/off of the absorber at the resonance frequencies of the metal opening resonance units is realized through changing the conductivity of the MIT phase change layer. According to the invention, the variation of the conductivities of the MIT phase-change material before and after phase change is utilized to change the absorptivity of the absorber, so that the THz MPA can be turned on/off near the resonance frequency of the metal opening resonance units, initiative control of the electromagnetic transfer characteristics of THz wave bands at the specific frequency, and accordingly, a larger on-off ratio or modulation depth can be obtained; and the switching-controllable MPA adopting the substrate-vanadium dioxide-dielectric layer-SRRs (Split Ring Resonators) four-layer structure can control the conductivity of vanadium dioxide through an external field so as to control the absorptivity of the MPA.

A varnish containing a charge-transporting organic material and a solvent is used as a charge-transporting varnish. The charge-transporting organic material is composed of a charge-transporting substance comprising a charge-transporting monomer, or charge-transporting oligomer or polymer having a number average molecular weight of 200 to 500,000, or is composed of such a charge-transporting substance and an electron- or hole-accepting dopant substance. The solvent contains at least one type of high-viscosity solvent having a viscosity of 10 to 200 mPa·s at 20° C. The charge-transporting substance or the charge-transporting organic material is dissolved or uniformly dispersed in the solvent. The varnish has a high uniform film forming capability even in a system using a charge-transporting substance of low molecular weight and a charge-accepting dopant substance. When the varnish is used in, particularly an OLED device or PLED device, excellent EL device characteristics, namely a low drive voltage, a high luminance efficiency, and a long life are realized.

The invention discloses a failure analysis method for a numerically-controlled machine tool. The failure analysis method overcomes the defects that in the prior art, failure relevance is not considered in machine tool failure analysis. A DEMATEL-ISM method is integrated, related failure statistics data are combined, failure correlation between subsystems is taken into consideration, a digraph and matrix operations are applied to obtain a comprehensive influence matrix between the subsystems and relevancy, an overall influence matrix and a reachable matrix are obtained through the comprehensive influence matrix between the subsystems, and the reachable matrix is decomposed so that a multilevel hierarchical structure model can be obtained. The relevancy and the multilevel hierarchical structure model are synthesized to obtain a numerically-controlled machine tool key subsystem; possible failure modes of components of the key subsystem and influences of the failure modes on operation of a numerically-controlled machine tool are determined by means of FMECA technical analysis, a single point of failure is found, and perniciousness of the failure modes is determined according to the severe degree of the failure modes and the probability of occurrence of the failure modes.

The application provides a testing method and device for software interface state change time, and is used for solving the problem that the software interface change time tested in the prior art is inaccurate. The method comprises the steps of: triggering the operation of changing the testing interface state, and recording the triggering time as starting time; detecting the preset change of a reference object of the testing interface, and recording the detection time as terminal time; and recording the time interval of the terminal time and the starting time as the interface state change time. According to the characteristic that the reference object changes when the testing interface state changes, the time of the software interface presented to the user is obtained, namely the true starting time of the software is obtained.

The precent invention discloses a poly-o-phthalonitrile resin and a preparetion method. After the solution blending, fusion blending or physical blending of 1 to 99 percent of o-phthalonitrile derivative with amino group or hydroxyl group and 1 to 99 percent of polyethernitrile with amino group or hydroxyl group, or 1 to 99percent of o-phthalonitrile derivative with amino group or hydroxyl group and 1 to 99 percent of o-phthalonitrile derivative, or 1 to 99 percent of polyethernitrile with amino group or hydroxyl group and 1 to 99 percent of o-phthalonitrile derivative, or 1 to 98 percent of o-phthalonitrile derivative with amino group or hydroxyl group, 1 to 98 percent of polyethernitrile with amino group or hydroxyl group and one to ninety eight percent of o-phthalonitrile derivative, the compound is solidified, so that the poly-o-phthalonitrile resin is prepared. Because the invention uses the o-phthalonitrile derivative with amino group or hydroxyl group or / and the polyethernitrile to prepare the poly-o-phthalonitrile resin, the performance of the resin can be regulated and controlled in a wide range, and the tenacity of the poly-o-phthalonitrile resin can also be increased, thus broadening the application field of the resin. The invention also has the advantages of simple steps and low cost.

The present invention relates to one kind of externally applied Chinese medicine lotion for treating pain caused by wind, cold and damp. The externally applied Chinese medicine lotion is prepared with over 30 kinds of Chinese medicinal materials, including long-noded pit viper, prepared aconite root, wild aconite root, notopterygium, pubescent angelica root, etc. and white spirit. It possesses the functions of warming meridians, expelling cold, dispelling wind, eliminating dampness, dredging meridians and stopping pain, and can treat pain in neck, shoulders, waist and legs.

The invention discloses an IGBT overcurrent protection apparatus and method of a PFC circuit. The IGBT overcurrent protection apparatus comprises: a PWM control module; an input voltage detection module detecting an input voltage, setting a hardware protection voltage, comparing the input voltage with the hardware protection voltage, generating a hardware voltage protection signal and outputting the hardware voltage protection signal to the PWM control module; an output voltage detection module detecting an output voltage; a current detection module detecting an input current; a current overcurrent protection module setting a hardware protection current, comparing the input current with the hardware protection current, generating a first hardware current protection signal and a second hardware current protection signal and transmitting the second hardware current protection signal to the PWM control module, wherein the PWM control module outputs a PWMout signal according to the hardware voltage protection signal and the second hardware current protection signal; and a PFC control module separately connected with the above modules, receiving the input voltage, the input current, thefirst hardware current protection signal and the output voltage, setting a software protection current, outputting a PWM signal to the PWM control module according to various values, and controllingthe PWM control module to output the PWMout signal.

The invention belongs to the field of medical biological technique and discloses a method for digitally detecting micro-mutation by using a micro-emulsion clone amplified bound water gel microsphere chip. The method detects the micro-mutation by combining the microsphere mediated micro-emulsion clone amplifying technique with the water gel chip fixing microsphere fluorescence detection and digitization analysis techniques. The method promotes the positive relevance ratio of micro-mutation, has low cost, high sensitivity and fine specificity and is applied to quantitatively measuring micro-mutation of various low abundance tumor relative genes.

The invention discloses a thunderstorm kernel identification and tracing method based on a hybrid clustering algorithm. The method specifically includes the following steps of utilizing deployed thunder and lightning monitoring points to conduct exploration and record cloud-to-ground lightning data, conducting preprocessing on the recorded cloud-to-ground lightning data and dividing the data intolightning data sets of each equal time interval; adopting a GPS clock synchronization technology and an algorithm of time differences of arrival for figuring out spatial positioning coordinates of lightning according to the time differences of arrival of changeable radiation pulses of an electric field generated by the lightning to each station; on the basis of thunder and lightning positioning data figured out by means of the procedures above, utilizing a DBSCAN algorithm and a KMEANS algorithm to figure out the relevance of the thunder and lightning positioning data among a thunderstorm kernel center-of-mass coordinate position, the lightning frequency and a thunderstorm kernel. An experimental result indicates that the method can accurately reflect the change tendency of thunder and lightning on thunderstorm days, and great effects of identifying the thunderstorm kernel and movably tracing a thunderstorm are achieved.

The invention discloses a house checking, renting and selling method of a house sharing platform. The method comprises following specific steps that an owner logs in the platform, uploads full-view pictures or videos and publishes the full-view pictures or the videos enclosed with augmented reality sand table three-dimensional graphs; a demander logs in the platform, looks over the full-view pictures or the videos and the augmented reality sand table three-dimensional graph of the community and near the house, and makes an online appointment and freely selects transaction modes; the owner freely selects transaction modes; the demander pays; and the owner collects the money and visits the platform again. In this way, time of the demander to go to the to-be-sold house can saved; cost of the demander can be reduced; the demander can comprehensively know the house, the community and the supporting facilities around the community in advance; the house can be looked over, rent and sold online; ability of the owner receive demanders is improved; difficulty level in selling the house is reduced; and convenience degree of house buying and selling is increased.

The invention discloses a method for preparing antihypertensive peptides through enzymolysis of ground meat proteins of a tuna. The method comprises the steps of: (1) regarding the ground meat of the tuna as the raw material, mixing and homogenizing the raw material and a buffer solution according to a weight/volume ratio of 1 g: 3-5 ml, and then adjusting the pH value to 9.5-10 to obtain a mixed solution; (2) heating the mixed solution to 55-60 DEG C for pre-heating, and adding alcalase according to 1.0%-1.5% of the raw material for enzymolysis at an enzymolysis temperature of 55-60 DEG C for 4-6 h; and (3) performing enzyme deactivation on the obtained enzymolysis product to obtain an enzymolysis solution and then enabling the enzymolysis solution to sequentially suffer from ultrafiltration, desalination, freeze drying and chromatography to obtain the antihypertensive peptides. The method for preparing the antihypertensive peptides through the enzymolysis of the ground meat proteins of the tuna, disclosed by the invention, has the advantages of abundant source of the raw material, low price, simple preparation process, relatively strong activity of the prepared antihypertensive peptides; compared with a chemosynthetic ACE (Angiotensin Converting Enzyme) inhibitor, the ACEP (ACE Inhibitive Bioactive Peptide) prepared through enzymolysis of the ground meat of the tuna has the advantages of being safe and nontoxic, specific in antihypertensive efficacy, easy to digest and absorb and the like.

The present invention reduces existent safety snag of intelligent communication terminal inputting code through 'direction key select input code' and 'key place redefinition inputting code' etc method in intelligent. The present invention can combine with existing variety encryption technique, wireless communications transmission technique to ensure user input data security and prevent input data illegally used, capable of being used in intelligent communication terminal code inputting field.

The invention discloses a seepage experiment system for gas-containing coal under the action of an impact load. The system comprises a coal sample fixing device, an impact load applying device as well as a high-pressure gas source device, an axial pressure loading device, a confining pressure loading device, a vacuumizing device and a metering and data acquisition device connected with the coal sample fixing device, wherein the impact load applying device is a split Hopkinson pressure bar device. The split Hopkinson pressure bar device is adopted to apply the impact load for simulating rock burst, three-dimensional loaded conditions of coal-rock masses in coal mine can be simulated by applying different axial stresses and radial stresses, and seepage experiment of a coal sample in a three-dimensional stress state under the action of the impact load is successfully carried out, so that the system has relatively important meaning in both theory and practice.

The invention discloses a sample processing device for soil heavy metal detection and a processing method thereof. The processing device comprises a hopper, a screen-out device, a preprocessing device, an allocation device, a sample rack and a digestion device. The screen-out device comprises a separating base, a positive electrode suction device, a screen-out fan and a collecting groove. The preprocessing device comprises a drying chamber, an electric heating wire, a lifting crushing screen and a sample suction port. The suction pump of the allocation device is connected with the sample suction port through a pipeline. The allocation device is connected with a metering valve. The sample rack comprises a rotating base used for rotating the sample rack at a fixed angle. A plurality of sample tubes are circumferentially arranged on the rotating base. An ultrasonic generator is arranged at the connection between the sample tubes and the rotating base. The digestion device comprises a storage tank and a digestion liquid peristaltic pump. In a word, the sample processing device has the advantage of novel structure, perfect method, good processing effect, small detection error and the like.

The invention discloses an electric energy meter manufacturer evaluation method based on multiple evaluation indexes, which relates to an evaluation method. The invention comprises the following steps: acquiring the original data of the electric energy meter and determining an evaluation index; Calculating each index value of the electric energy meter, construct the index matrix, forming the decision matrix; Calculating the information entropy and Spearman grade correlation coefficient of each index value of watt-hour meter, determine the objective weight of the quality evaluation index according to CRITIC method, processing the decision matrix and obtain the watt-hour meter supplier evaluation matrix; Calculating the positive ideal solution and negative ideal solution of the watt-hour meter supplier, and calculating the Euclidean distance from each watt-hour meter supplier to the positive ideal point vector and the negative ideal point vector. Calculating the relative approximation degree between each watt-hour meter supplier and the ideal solution, and determine the quality level of each watt-hour meter supplier from high to low. The technical scheme provides an objective and scientific basis for the electric energy meter quality evaluation and supervision of the power grid company.

Disclosed is a virtual experimental platform of an unmanned underwater vehicle mission planning system and an experimental method. The experimental platform comprises a virtual experimental scene display terminal, a virtual experimental user operating terminal, a desktop type work station, a principle computer control module and an unmanned underwater vehicle simulation module; the desktop type work station comprises a peripheral component interconnect express (PCI Express) high-performance graph acceleration processing card, a PCI Express disk array card, and a plurality of PCI Express data acceleration processing cards; the principle computer control module is integrated and operates in the desktop type work station, and the unmanned underwater simulation system module is integrated and operates in the PCI Express data acceleration processing card in the desktop type work station. The experimental method includes experimental methods of 'full digital virtual experiment' and 'half material virtual experiment' on the basis of the virtual experimental platform. The virtual experimental platform of the unmanned underwater vehicle mission planning system and the experimental method have the advantages of simple structure, simple and convenient operation, high function integration, wide application range, high experimental efficiency, and the like.

The invention discloses a point cloud indoor scene layout reconstruction method based on structural analysis. The method is specifically implemented according to the following steps: step 1, carryingout preprocessing operation on an indoor scene; step 2, performing coarse segmentation on the indoor scene preprocessed in the step 1, and extracting a contour of a room; step 3, dividing the layout of the indoor scene room according to the contour of the room extracted in the step 2 to obtain a room layout; and step 4, dividing walls of different surfaces of the indoor scene preprocessed in the step 1 and reconstructing, and then reconstructing a global structure of the indoor scene in the room layout divided in the step 3 to reconstruct a complete indoor structure. According to the point cloud indoor scene layout reconstruction method based on structural analysis, the problems that in the prior art, due to the fact that a large number of data characteristics in a scene need to be considered, algorithm design is complex, and the processing speed is low are solved.

The invention relates to a fuel oil suspension subsidence detection system, including a computer, a numerical control coordinate frame and a camera, wherein, the computer connects with the numerical control coordinate frame through a central controller connection, the camera is arranged on a portable plate on the cross arm of the numerical control coordinate frame, the camera connects with the computer, and a settling column stands in front of the camera; when examining, the camera on the numerical control coordinate frame is controlled by the direction key of the computer to do two-dimensional motion so as to track the movement of the suspension in the subsidence column, which can fast and accurately examine the settling velocity and the settling regularity of the suspension in each jet fuel oil, enhance the automaticity of the research work about the suspension of the jet fuel oil, enrich the research tool and method, provide essential technology for completely solving the problem of the suspension in the jet fuel oil, and make the contribution for the fuel oil examination enterprise of our country.

The invention discloses a decryption and recovery method of document object model (DOM) raster data, and belongs to the field of geography information safety. The decryption and recovery method of the DOM raster data comprises the following steps of (1) a key generation process: confirming a data range, confirming data conversion amount, computing linear and nonlinear transformation parameters; (2) a decryption process: reading a key file, processing each pixel according to the key file, and saving raster data after decryption; and (3) a recovery process: opening the raster data after decryption, and processing each pixel in a circular mode. Aiming at a safety protection problem of the DOM raster data, the decryption and recovery method of the DOM raster data is capable of carrying out decryption to the data according to the key under the premise of ensuring that no change occurs in a data topological relation, and the data after decryption can be recovered according to the key. The decryption and recovery method of the DOM raster data has the advantages of having randomness, gradual change property, reversibility and the like, improving reliability of decryption of the DOM raster data, completing a theory and method system of geographic information safety protection, and being applicable to public release of the DOM raster data, and the like.

The invention discloses a method for cultivating cold-resistance gift tilapia. The method adopts the establishment of a plurality of pedigrees and selects a pedigree of which an average cold-resistance variance is higher than a total variance as a primitive pedigree through a cold-resistance test. In the May of the following year, a female and a male of the primitive pedigree mate for propagation. After emergency from eggs, fish fry passes through growth selection and cold-resistance selection as well as a growth comparison test to select a pedigree growing faster than a reference gift tilapia and having a cold-resistance variance higher than a cold-resistance total variance of the time as the first pedigree. The selection and the test are both carried in a mesh box. The first pedigree is protected as parent stock in winter and passes the selection of a second pedigree in the same way in the following year. Researches show that the total variance of the cold-resistance selection is obviously higher year by year. Through selection generation by generation, gift tilapia which grows fast and is fully improved in cold resistance can be obtained.