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48results about How to "Break through dependence" patented technology

Singing synthetic method for tone conversion

The invention relates to a singing synthetic method for tone conversion. The method comprises the steps: calculating the frequency spectrum features (shown in the description), a fundamental tone frequency (shown in the description) and an aperiodic component (shown in the description) of a singing audio without makeup and acting of a singer through a STRAIGHT algorithm; constructing a singing tone conversion model, wherein the model is generated through a variational self-encoding-generative confrontation network; training the model through the spectrum features of the singer's singing data without makeup and acting, and obtaining a trained singing tone conversion model; finally inputting the spectrum of a to-be-converted singer's singing audio without makeup and acting into the trained singing tone conversion model, wherein the model output is the spectrum with the tone of a target singer (shown in the description), and synthesizing the converted spectrum (shown in the description),fundamental tone frequency (shown in the description) and aperiodic component (shown in the description) into the singing sound through the STRAIGHT algorithm after tone conversion. The method achieves the many-to-many singing conversion under a non-parallel data set.
Owner:FUZHOU UNIVERSITY

Foot type robot motion control method and system based on deep reinforcement learning

The invention discloses a foot type robot motion control method and system based on deep reinforcement learning. The foot type robot motion control method based on the deep reinforcement learning comprises the steps that a foot type robot 3D model is established; reward and punishment functions are designed; a motion network and a target motion network are established, and network initialization is completed; controlled quantity is generated by using the motion network to obtain a state of a robot at a next moment, and a reward and punishment value is calculated; a certain number of samples are selected randomly, a state-motion value of a target evaluation network is calculated, and output of the evaluation network is updated according to a Bellman equation; a weight of the motion networkis updated by using the evaluation network; the target evaluation network and the target motion network are updated by using the evaluation network and the weight of the motion network; the steps arerepeated until network convergence; and a control instruction of the robot motion is obtained according to the motion network. According to the foot type robot motion control method and system based on the deep reinforcement learning, a foot type robot is enabled to realize the high-efficiency and stable movement under unknown environments.
Owner:BEIJING INST OF CONTROL ENG

Biological treatment method and device for ecological system of sewage circulation utilization

The invention discloses a biological disposing method of effluent through circulating ecological system, which comprises the following steps: 1) predisposing waste water; separating solid from liquid or liquid from liquid; obtaining supernatant; 2) entering the supernatant into serial anaerobic and aerobic disposing disposal; cutting and guiding disposed flow through guide flow or conductive pipe; setting three-phased separating device to reinforce anaerobic disposal; 3) sterilizing the water; 4) pumping or reflowing water from sterilizing device to container; controlling dissolved oxygen density or air aerating time; setting the air cutting and aerating time at 1:0.4-5.
Owner:戴立明

Urban PM2.5 monitoring system and method based on Beidou and Internet of Things

The invention provides an urban PM2.5 monitoring system based on the Beidou and the Internet of Things, and the system comprises a cloud platform, a plurality of gateway devices, and a plurality of monitoring terminal devices. All monitoring terminal devices are in communication connection with all gateway devices through Beidou satellites. The gateway devices are in network communication connection with the cloud platform, and the monitoring terminal devices are used for monitoring of PM2.5, collects monitoring data and position information, and enables the collected monitoring data and position information to be transmitted to the gateway devices through the Beidou satellites. The gateway devices are used for enabling the received detected data to be transmitted to the cloud platform. The cloud platform is used for the analysis, storage and publishing of the received monitoring data. The invention also provides a corresponding urban PM2.5 monitoring method based on the Beidou and the Internet of Things. The system can automatically collect the position information of devices, reduces the construction difficulty, is convenient to maintain, is wide in application range, is stable in communication, and is wide in range of data monitoring.
Owner:MEDIASOC TECH

Simulated marble slab and production method thereof

The invention relates to a marble slab, in particular to an artificial simulated marble slab and a production method of the artificial simulated marble slab. The invention aims to overcome defects of natural marble and provide the simulated marble slab which has low price, is light, is easy to pave, has no harm and pollution and can replace the natural marble. The simulated marble slab comprises a substrate layer. A priming paint layer, a marble pattern layer and a finish layer are sequentially arranged on the positive face of the substrate layer from bottom to top. The invention also aims to provide a production method of the simulated marble slab, which comprises the following steps of: selecting a substrate; tailoring the selected substrate to a required size; tenoning on tailored substrate; coating priming paint on the positive surface of the substrate; spraying natural marble patterns on the surface coated with the priming paint of the substrate; and coating finish on the surface sprayed with the natural marble patterns of the substrate. The simulated marble slab provided by the invention can be widely applied in multiple industries such as building material, advertisement, furniture, decoration and the like.
Owner:GUANGZHOU GUANGYANG FU BULGARI HOME MATERIAL

Simulated wood board and production method thereof

The invention relates to a wood board, in particular to an artificial simulated wood board and a production method thereof. The simulated wood board aims to overcome shortcomings of natural wood, is waterproof, moisture-proof, insect-proof, mothproof, anti-crack, harmless and pollution-free, does not deform, and can replace the natural wood. The simulated wood board comprises a base material layer, and a primer layer, a pattern layer made of marble and a finish layer are successively arranged at the front of the base material layer from bottom to top. The invention further provides the production method of the simulated wood board. The production method comprises following steps: selecting a base material; cutting the selected base material into a base material with the required dimension; arranging tenon fasteners on the cut base material; coating primer on the front of the base material; printing textures of natural wood on the surface of the base material coated with the primer; and coating finish on the surface of the base material printed with the textures of the natural wood. The simulated wood board can be paved on floors of various humid environments and public places, and completely overcomes shortcomings that various wood floors are expanded when wetted and are contracted when dried.
Owner:GUANGZHOU GUANGYANG FU BULGARI HOME MATERIAL

Office waste paper recycling method

The invention discloses an office waste paper recycling method.Qualified office paper is recycled by disintegrating, pulping, deinking, bleaching, pressing, drying and cutting. Compared with the prior art, the office waste paper recycling method adopts the bio-enzyme preprocessing technology to break through the dependency of the traditional paper making on chemical products, decreases the application of chemical reagents through the bio-enzyme and ultrasonic-wave synergic deinking technology, adopts the treatable hydrogen peroxide-ozone mixed bleaching technology to achieve the advantages of no pollution, environmental friendliness and reduced difficulty of the waste water treatment, improves the utilization rate of office copy waste papers and the recycling rate of the waste papers, reduces the cost of the office papers, saves water and energy, protects the environment, can integrate and automate all step treatment devices, and is convenient to promote and apply.
Owner:HENAN POLYTECHNIC UNIV

Thrust bearing

The invention relates to a thrust bearing and belongs to the technical field of bearing lubrication. The thrust bearing comprises a bearing seat, a thrust pad and a balance part. A storing cavity for storing the thrust pad is formed in the bearing seat, and the thrust pad and the balance part are detachably installed in the bearing seat in an embedded mode; and the thrust pad comprises a graphite flake with a pin hole, a pad holder and a pressing plate, wherein a pine hole is formed in the graphite flake, the graphite flake and the pad holder are fixed into a whole through the pressing plate, and the graphite flake moves together with the pad holder. Through the graphite flake which is integrally fixed to the pad holder and moves together with the pad holder, the thrust bearing is suitable for different lubricating media; meanwhile, through the pin hole formed in the graphite flake, the membrane pressure and temperature a membrane formed by the lubricating media can be directly detected, the actual working condition in the thrust bearing can be mastered, real-time monitoring and timely adjusting can be achieved, the service environment of the thrust bearing is improved according to the actual work condition, and the service life of the thrust bearing is prolonged.
Owner:HUNAN CHONGDE IND TECH

Method for calibrating radial eccentricity parameters in milling process of flat head end mill

The invention discloses a method for calibrating radial eccentricity parameters in the milling process of a flat head end mill, which is used for solving the technical problems that in the prior art, the calibration of the radial eccentricity parameters in the milling process of the flat head end mill needs to be developed by relying on expensive testing equipment. The technical scheme is that asa dial indicator is adopted to test deviations between different cutter teeth and a rotating axis after the mill is clamped, a calibration model of the radial eccentricity parameters of the mill is established and the calibration of the radial eccentricity parameters is realized; as the dial indicator is adopted to test the deviations between different cutter teeth and the rotating axis after themill is clamped, the calibration model of the radial eccentricity parameters of the mill is established and the calibration of the radial eccentricity parameters is realized; and the method is simpleand reliable, and the constraint of relying on the expansive testing equipment is thrown off.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Method for extracting milk exosome

The invention provides a method for extracting milk exosome. The method comprises the following steps: (1) sampling a milk sample, performing centrifugal treatment at 2,000 g for 30 minutes at 4 DEG C, and collecting a supernatant A; (2) performing centrifugal treatment on the collected supernatant A at 12,000 g for 30 minutes at 4 DEG C, and collecting a supernatant B; (3) further regulating thepH value of the collected supernatant B to be 5.5 to 6.0; (4) adding rennin into the supernatant B after the pH value is regulated in water bath at 36 to 37 DEG C, separating out milk protein precipitate to obtain a supernatant C; (5) freezing and drying subfractions, which can pass through a 0.22 mu M membrane, of the supernatant C into a powder, namely the milk exosome. Compared the method for extracting the milk exosome provided by the invention with the conventional centrifugal-ultrahigh centrifugal method, the steps of an ultrahigh centrifugal method are reduced, the consumable cost usedin extracting is reduced, and the extracting volume of a sample is greatly increased.
Owner:广州市创唯曦旺生物科技有限公司 +2

Pollution source identification method and system based on data fusion

The invention discloses a pollution source identification method and system based on data fusion. The method comprises the following steps: preprocessing a pollution source sample, and then testing pollution indexes to obtain conventional water quality data, ultraviolet-visible absorption spectrum data and three-dimensional fluorescence spectrum data; preprocessing the test data and then performing feature extraction; splicing the extracted feature data to construct fusion data; establishing a pollution source identification model according to the fusion data and a classification algorithm, and performing training; and carrying out pollution source identification through the trained pollution source identification model. The system comprises a sampling module, a sample pretreatment module, a sample introduction module, an analysis and test module, a data transmission module and a display and system control module. According to the method, conventional water quality, the ultraviolet-visible absorption spectrum and the three-dimensional fluorescence spectrum are subjected to data fusion and applied to pollution source identification, and compared with a traditional pollution source identification method, the method is accurate, intelligent, low in cost and high in operability and has important significance on source tracing of the pollution source.
Owner:TSINGHUA UNIV

Four-dimensional light field decoding preprocessing method based on original image

The invention discloses a four-dimensional light field decoding preprocessing method based on an original image. The method comprises the step of utilizing a light field imaging device for collecting the original image of a scene, the step of calibrating the original image to obtain a center coordinate set of the original image, the step of carrying out re-sampling processing on the original image according to the calibration information to obtain a sub-aperture image array, the step of carrying out the vignetting removing processing on an edge sub-aperture image in the sub-aperture image array to obtain a sub-aperture image array with the vignetting removed, and the step of finishing the four-dimensional light field decoding through the sub-aperture image array with the vignetting removed to obtain the parameterization expression of a four-dimensional light field. The method breaks through the dependence limitation on a white image in the two key preprocessing steps of calibrating and vignetting removing in a traditional preprocessing method, the application flexibility of light field imaging is improved, the popularization application range of the light field imaging can be widened, and the method plays a positive role in promoting the application and development of the light field imaging.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Intelligent sound box system with telephone function and operation method

The invention relates to the field of intelligent communication equipment, in particular to an intelligent sound box system with a telephone function, which comprises an intelligent sound box, an intelligent mobile terminal and a cloud server, the intelligent sound box comprises a Wi-Fi module, a microphone array, an MCU, an AEC module, an AGC module and an ANS module. The intelligent mobile terminal comprises an address book management module and a network distribution unit; the cloud server comprises a voice server, an address book management unit and a telephone number management unit; theWi-Fi module is connected with the network distribution unit for network distribution and can access the cloud server after accessing the home network router, and the intelligent mobile terminal address book management module uploads address book information to the cloud server address book management unit; the microphone array is used for pickup and monitoring a user instruction; and after receiving the instruction, the MCU can call the AEC module, the AGC module and the ANS module to process the audio data. The terminal equipment has the beneficial effects that a fixed-line telephone is replaced, the calling function is realized, the interaction function is also realized, and the convenient calling terminal equipment is provided.
Owner:厦门市思芯微科技有限公司

Method and device for acquiring prompting information

The invention aims to provide a method and a device for acquiring prompting information. The method includes steps of acquiring prompting image information from a user device; matching the prompting image information with one or more prestored images of network equipment so as to determine the prestored image corresponding to the prompting image information; acquiring the prompting information corresponding to the prestored images according to the corresponding image correspondence of the network equipment, so as to forward the prompting information to the user device, wherein the image correspondence comprises correspondence of various prestored images and various prompting information.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Data updating method and system, computer device and readable storage medium

The invention provides a data updating method, which comprises the following steps of: modifying created advertisement position related data according to an operation signal, and storing another pieceof advertisement position related data on the premise of storing the current version of the advertisement position related data; modifying the advertisement position related data on the other storedadvertisement position related data based on the operation signal; creating a modification log in a preset log file; after the modification log is successfully created, storing the modified advertisement position related data, and taking the stored modified advertisement position related data as the latest version of the advertisement position related data; and based on the advertisement space related data, creating advertisement space transaction data in response to the input of the user, the advertisement space related data being associated with the advertisement space transaction data through an advertisement space ID. The invention further provides a system for realizing the data updating method, a computer device and a readable storage medium. According to the invention, data management can be optimized.
Owner:卓尔智联(武汉)研究院有限公司

Joint extension rehabilitation training system based on pain feedback control and achieving method of joint extension rehabilitation training system

InactiveCN104083269AUnderstand the pain situation in real timeImprove complianceChiropractic devicesTraining planPhysical medicine and rehabilitation
The invention discloses a joint extension rehabilitation training system based on pain feedback control and an achieving method of the joint extension rehabilitation training system. The joint extension rehabilitation training system comprises a training protective tool body and an angle adjusting device arranged on the training protective tool body, and further comprises a protective tool length adjusting device arranged on the training protective tool body, and a pain managing terminal. The pain managing terminal comprises a pressure processing module connected with the training protective tool body through the pressure sensor, a processor connected with the pressure processing module and provided with a touch screen, a pain input module, a training plan input module and an adjusting prompt interaction module, and the pain input module, the training plan input module and the adjusting prompt interaction module are arranged in the processor. The joint extension rehabilitation training system is reasonable in structure and convenient to operate, the length of the training protective tool can be adjusted according to different people, the training requirements of patients of different ages can be met, a doctor can know the pain situation of the patients in the training process in real time, and corresponding adjustment is made. According to the joint extension rehabilitation training system, the effect of rehabilitation training is greatly improved, and the rehabilitation period is effectively shortened.
Owner:SICHUAN XUKANG MEDICAL ELECTRICAL EQUIPCO

A kind of recycling method of office waste paper

The invention discloses an office waste paper recycling method.Qualified office paper is recycled by disintegrating, pulping, deinking, bleaching, pressing, drying and cutting. Compared with the prior art, the office waste paper recycling method adopts the bio-enzyme preprocessing technology to break through the dependency of the traditional paper making on chemical products, decreases the application of chemical reagents through the bio-enzyme and ultrasonic-wave synergic deinking technology, adopts the treatable hydrogen peroxide-ozone mixed bleaching technology to achieve the advantages of no pollution, environmental friendliness and reduced difficulty of the waste water treatment, improves the utilization rate of office copy waste papers and the recycling rate of the waste papers, reduces the cost of the office papers, saves water and energy, protects the environment, can integrate and automate all step treatment devices, and is convenient to promote and apply.
Owner:HENAN POLYTECHNIC UNIV

Imitated-marble glass plastic ecological board

The invention provides an imitated-marble glass plastic ecological board which comprises a wear-proof antiskid paint layer, an imitated-marble coating layer, a board core layer, a glass fiber reinforced plastic layer, a sound insulating material layer, a base board layer and a damp-proof primer layer, wherein the sound insulating material layer is arranged at the top of the base board layer; the glass fiber reinforced plastic layer is arranged at the top of the sound insulating material layer; the board core layer is arranged at the top of the glass fiber reinforced plastic layer; and the imitated-marble coating layer is arranged at the top of the board core layer. The imitated-marble glass plastic ecological board provided by the invention has damp-proof and wear-proof functions; through cooperation with the glass fiber reinforced plastic layer, the ecological board has the characteristics of high strength and good stability; through cooperation with the sound insulating material layer, the ecological board has a sound insulating effect; the ecological board can replace natural marble to a great degree, and the dependence of the decoration and building materials on natural marble is broken; and the imitated-marble glass plastic ecological board can be widely applied to the industries such as building materials, advertising, furniture and decoration.
Owner:赵寰

A method of extracting milk exosomes

The present invention provides a method for extracting milk exosomes, the method comprising the following steps: (1) taking a milk sample, centrifuging at 2000g, 4°C, and 30min, and collecting the supernatant A; (2) collecting the collected Supernatant A was centrifuged at 12000g, 4°C, 30min, and supernatant B was collected; (3) The collected supernatant B was further adjusted to pH 5.5-6.0; (4) Under the condition of 36-37°C water bath, Adding chymosin to the supernatant B after adjusting the pH to precipitate milk protein to obtain supernatant C; (5) freeze-drying the subcomponents of supernatant C that can pass through a 0.22 μM membrane into powder, namely for milk exosomes. Compared with the traditional centrifugal-ultrahigh-speed centrifugation method, the method for extracting milk exosomes of the present invention reduces the steps of the ultrahigh-speed centrifugation method, saves the cost of consumables used in extraction, and greatly increases the sample extraction volume.
Owner:广州市创唯曦旺生物科技有限公司 +2

File reading and writing method and device

ActiveCN106971112AAvoid situations where reading and writing cannot be done normallyBreakthrough interceptionDigital data protectionByteTerminal system
The invention provides a file reading and writing method and device. The method comprises the following steps that: accessing hard disk equipment, reading raw data from the hard disk equipment, wherein the raw data is data of a byte stream form; analyzing the read raw data to obtain terminal system configuration parameters, wherein the terminal system configuration parameters comprise a file storage path in a terminal system; according to the terminal system configuration parameters, determining the storage path of target raw data corresponding to an appointed file in the hard disk equipment; and according to the storage path, searching the target raw data, and executing a read-write operation for the target raw data in the hard disk equipment. By use of the technical scheme, a whole read-write process is not limited by kernel mode permission, no drivers need to be loaded so as to avoid a situation that a file can not be normally read and written since driver loading is hindered when hooks are arranged in the kernel mode by malicious programs and the like, and a purpose that the file is read and written from a user mode is achieved.
Owner:BEIJING QIHOO TECH CO LTD

Full-platform compatible image-text topic display method

The invention discloses a full-platform compatible image-text topic display method. The method comprises the following steps: (1) converting target topic data; (2) analyzing the converted data to generate graphical description data; (3) inserting the description data into the HTML template; (4) adjusting a resolution parameter of the HTML template; (5) loading the HTML template by adopting a headless browser and rendering the HTML template; (6) acquiring the position information of the content elements by using a headless browser; (7) carrying out accurate screenshot on the content type elements according to the position information of the content type elements; (8) storing the screenshots in a file format suitable for the object terminal, and displaying the screenshots on the object terminal. According to the method, the dependence of a platform on HTML, XML and a browser is broken, the consistency of the structure under any resolution can be ensured, and proper pictures can be rapidly rendered in batches.
Owner:杭州智会学科技有限公司

Automatic wire cutting-coiling-binding integrated machine and wire coiling device thereof

The invention discloses a wire coiling device. The wire coiling mode of the wire coiling device is characterized in that a wire is coiled in a wire coiling barrel, so that influence on the wire caused by tension on the wire in a current wire coiling mode is eradicated. The invention further discloses an automatic wire cutting-coiling-binding integrated machine, so that an automatic production line including techniques of length metering, wire pulling, separate cutting, wire coiling, single-thread wire binding / circulating, multi-strand wire binding / circulating and unloading and the like is realized; online is realized; production efficiency for sectional binding of wires is greatly improved; and manufacture cost for products is reduced.
Owner:温增璟

A thrust bearing

The invention relates to a thrust bearing and belongs to the technical field of bearing lubrication. The thrust bearing comprises a bearing seat, a thrust pad and a balance part. A storing cavity for storing the thrust pad is formed in the bearing seat, and the thrust pad and the balance part are detachably installed in the bearing seat in an embedded mode; and the thrust pad comprises a graphite flake with a pin hole, a pad holder and a pressing plate, wherein a pine hole is formed in the graphite flake, the graphite flake and the pad holder are fixed into a whole through the pressing plate, and the graphite flake moves together with the pad holder. Through the graphite flake which is integrally fixed to the pad holder and moves together with the pad holder, the thrust bearing is suitable for different lubricating media; meanwhile, through the pin hole formed in the graphite flake, the membrane pressure and temperature a membrane formed by the lubricating media can be directly detected, the actual working condition in the thrust bearing can be mastered, real-time monitoring and timely adjusting can be achieved, the service environment of the thrust bearing is improved according to the actual work condition, and the service life of the thrust bearing is prolonged.
Owner:HUNAN CHONGDE IND TECH

Circulating water flushing ecological toilet and sewage treatment method thereof

InactiveCN1280490CMeet recycling standardsRealize the purpose of circular flushingFlushing devicesLavatory sanitoryDigestionOzone Sterilization
The invention discloses an ecological toilet for flushing with circulating water. Its structure is that a high-level water tank is sequentially connected with a toilet, a stirring and crushing device, a solid-liquid separation device, an anaerobic reaction device, an aerobic reaction device, an aerobic reaction device and an ozone disinfection device through a water pipe. The device is connected, and the ozone disinfection device is connected to the high-level water tank through the water pump. The present invention has the advantages of breaking through the dependence of toilets on water and the limitation that other types of ecological toilet pollutants need to be harmlessly treated in different places; Potential defects of secondary pollution of packaging materials; improve the in-situ treatment efficiency and harmless treatment degree of feces; expand the concept and application field of ecological toilets; make full use of the rich microbial resources in excrement and strengthen its functional digestion Effect: The degree of humanized design has been improved, and the new concept of ecological sanitation unit has been updated.
Owner:NANJING UNIV

A large field of view wavefront measurement device and method, equipment and medium

ActiveCN112414565BBreak through dependenceRealization of large field of view wavefront measurementOptical measurementsTarget surfaceWavefront
The invention discloses a large field of view wavefront measurement device, method, equipment and medium. The device includes an image sensor provided with an imaging target surface. A mask plate is installed in front of the imaging target surface. The mask A plurality of micro-light holes are evenly arranged on the membrane plate according to the preset distribution density. The diameter of the micro-holes is d>10λ, and the diameter d and the distance between the mask plate and the imaging target surface satisfy the relationship: at the same time L>>25λ, λ is the wavelength of light. The invention can make use of the imaging characteristics of ordinary converging lenses to realize wavefront measurement of large field of view at low cost. During the measurement, a mask plate with micro-holes with a set density is designed, combined with a cross-correlation calculation method, a breakthrough It eliminates the traditional wavefront test’s dependence on collimated light, and can achieve large-field wavefront measurement according to the different field angles of common lenses used. No additional large-size concave mirrors or lenses are required, and the cost is low.
Owner:NAT UNIV OF DEFENSE TECH

A rgb-d image registration method based on 2d/3d mode switching

ActiveCN106683125BAccurate scene 3D informationBreak through dependenceImage analysisImaging qualityRgb image
The invention discloses an RGB-D image registration method based on 2D / 3D mode switching, and the method comprises the steps: obtaining an RGB image and a Depth image of an environment through an RGB-D sensor; respectively carrying out the detection of the quality of the RGB image and the quality of the Depth image through an image quality detection method; determining the priority of a registration mode according to the image quality, and carrying out the supplementation for the priority through employing the other remaining image registration algorithm; abandoning an image with the poor quality, thereby reducing the image registration time. The method makes the reasonable use of the information of 2D / 3D modes, greatly improves the robustness and instantaneity of image registration, increases the application time and space of a mobile robot, and is enabled to be adapted to a more complex environment.
Owner:CHINA UNIV OF MINING & TECH

Liquid flash measurement method for changing quenching state by using electron beam

The invention provides a measurement method for changing a quenching state by using an electron beam. The method is based on influence of the electron beam on the quenching degree of a standard sample, a TDCR value principle is combined, dependence on CMP of a to-be-measured sample is broken through, the TDCR value serves as transition, the DPM of the standard sample and the DPM of the to-be-measured sample are associated, a better fitting curve is selected through the fitting degree, a calculation method is simple, operation on the standard sample is avoided, and the measurement precision isimproved.
Owner:梁金胜

File reading and writing method and device

ActiveCN106971112BAvoid situations where reading and writing cannot be done normallyBreakthrough interceptionDigital data protectionByteTerminal system
The invention provides a file reading and writing method and device. The method comprises the following steps that: accessing hard disk equipment, reading raw data from the hard disk equipment, wherein the raw data is data of a byte stream form; analyzing the read raw data to obtain terminal system configuration parameters, wherein the terminal system configuration parameters comprise a file storage path in a terminal system; according to the terminal system configuration parameters, determining the storage path of target raw data corresponding to an appointed file in the hard disk equipment; and according to the storage path, searching the target raw data, and executing a read-write operation for the target raw data in the hard disk equipment. By use of the technical scheme, a whole read-write process is not limited by kernel mode permission, no drivers need to be loaded so as to avoid a situation that a file can not be normally read and written since driver loading is hindered when hooks are arranged in the kernel mode by malicious programs and the like, and a purpose that the file is read and written from a user mode is achieved.
Owner:BEIJING QIHOO TECH CO LTD

A Fast and Robust Registration Method of Visible Light Image and SAR Image Based on Structural Similarity

The invention discloses a fast and robust registration method for visible light images and SAR images based on structural similarity. First, the rational polynomial coefficient model RPC is used for rough registration of the visible light image to be registered and the SAR image; then, the improved corner detection method is used to detect the interest points of the visible light image, and then a certain number of interest points are uniformly selected as control points; then use the improved direction Harris corner histogram HIOHC to construct a similarity measure to perform key point matching in the SAR image; after removing obvious mismatches, use the least square method LSM to obtain the global transformation matrix and obtain the final Registration results. This method breaks through the dependence of traditional methods on image descriptors, and at the same time breaks through the sensitivity of traditional methods to different data sources, and achieves ideal results. It realizes high-precision registration of visible light images and SAR images. Change detection, loss estimation, etc. have important practical significance.
Owner:NANJING UNIV OF SCI & TECH

Determination method of scattered precious trace metal rhenium in molybdenite concentrate

The invention relates to a method for determining rare and dispersed precious trace metal rhenium in molybdenite concentrate, which specifically comprises the following steps: dissolving a sample in a nitric acid-hydrogen peroxide strong oxidation system, oxidizing rhenium to form faint yellow stable Re2O7, forming MoO3 precipitate by Mo, dissolving Re2O7 in water to generate soluble and stable perrhenic acid, not dissolving MoO3 precipitate in water, separating Mo from Re by filtering, and determining the content of rhenium in the molybdenite concentrate. And eliminating matrix interference of molybdenum, determining the filtrate by adopting an ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometry) method, and calculating the content of rhenium. The simple, convenient, accurate and rapid method for measuring the rare and dispersed precious rhenium element in the molybdenite concentrate is established, the accuracy of measuring the trace rhenium element is improved, the defect problem of measuring the content of the rare and trace rhenium element in the molybdenite concentrate in the prior art is overcome, particularly, the dependence of rhenium measurement on organic reagents such as tetraphenylarsonic chloride hydrochloride is broken through, and the method is suitable for large-scale popularization and application. The method is particularly suitable for rapid and accurate determination of trace rhenium elements, and the accuracy of a detection result is improved.
Owner:WESTERN MINING CO LTD +2
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