31results about How to "Real-time separation" patented technology

The invention discloses a method for detecting active components in plasma and a plasma card applying the method, and relates to methods for detecting active components such as proteins, polypeptides, free DNA (deoxyribonucleic acid), small molecule metabolites, inorganic ions, medicines and toxicants in plasma. Real-time separation and quantitative collection are carried out on the plasma in whole-blood samples by the aid of trace plasma preparation equipment, and the plasma is used as a detected material. Blood cell separation layers of the trace plasma preparation equipment are made of microporous polypropylene materials, blood cells in whole-blood are separated and filtered by the aid of volume exclusion technical principles, and plasma adsorption layers are made of cellulose materials. According to the method and the plasma card, simple and speedy preparation methods with functions of quantitatively collecting the plasma are provided, and the active components in the plasma can be solidified, keep stable and can be detected by chemical processes, physical processes, chromatography processes, mass spectrometry processes, biochemical processes, biological processes, immunization processes and gene sequencing processes.

The present application discloses a voice detection method based on multi-tone zones, which is applied to the field of artificial intelligence. The voice detection method provided by the present application includes: acquiring the voice zone information corresponding to each voice zone in N voice zones; The sound area information corresponding to each sound area is used to generate the control signal corresponding to each sound area; using the control signal corresponding to each sound area, the voice input signal corresponding to each sound area is processed to obtain each sound area. The voice output signal corresponding to the sound zone; the voice detection result is generated according to the voice output signal corresponding to each voice zone. The present application also discloses a voice detection device and a storage medium. The present application can process speech signals from different directions in parallel based on multiple sound zones. In the scenario of multiple sound sources, the control signals can be used to retain or suppress speech signals in different directions, so that each user can be separated and enhanced in real time. voice, thereby improving the accuracy of voice detection.

The invention provides a preparation method and device for 2,3,3,3-tetrafluoropropene. The device for preparing 2,3,3,3-tetrafluoropropene includes a loop reactor, a first rectification tower, a first cooling tower, a second rectification tower and a second cooling tower. The method of the present invention adopts continuous loop reactor technology, realizes the technology of separating hydrogen chloride by-product in real time under reaction conditions, the selectivity of the reaction is greatly improved, and the total conversion rate of the reaction is very high because the continuous circulation operation of raw materials is realized. . The 2,3,3,3-tetrafluoropropene obtained by the present invention has the advantages of low cost, less by-products and wastes of the production technology, and is suitable for large-scale industrial production.

The invention discloses a real-time sound field separation method based on the time-domain equivalent source method. A measurement surface is arranged between the target source and the interference source, and the time-domain sound pressure and the time-domain sound pressure at each measurement point on the measurement surface are collected synchronously. Particle velocity; Arrange equivalent sources on both sides of the measurement surface to simulate the target source sound field and interference source sound field respectively; Use linear interpolation function to interpolate the time-domain source intensity integral of each equivalent source to establish each measurement at any time The transfer relationship between the sound pressure of the point, the particle velocity and the source intensity of each equivalent source; from the initial moment, the time-domain source intensity integral of each equivalent source on both sides of the measurement surface at the corresponding time is obtained sequentially; according to the obtained The time-domain source intensity integral of the equivalent source at each moment and the transfer relationship between the equivalent source and any measuring point are calculated to obtain the sound field of the target source and the sound field of the interference source, and realize real-time sound field separation. The invention allows the measurement surface to be in any shape, and can separate the radiation sound field of the target sound source with any shape in the reverberation environment.

The invention discloses a real-time sound field separating method for measuring by the adoption of single-side sound pressure and vibration velocities. The real-time sound field separating method for measuring by the adoption of the single-side sound pressure and the vibration velocities is characterized in that a measuring plane is arranged between a target sound source and an interface sound source, and sound pressure time-domain signals and vibration velocity time-domain signals of grid points on the measuring plane are synchronously collected; two-dimensional space Fourier transform is respectively conducted on the sound pressure time-domain signals and the vibration velocity time-domain signals to acquire sound pressure time-domain wave number spectra and vibration velocity time-domain wave number spectra of wave numbers; then sound pressure time-domain wave number spectra independently radiated on the measuring plane by the target sound source are timely separated through the sound pressure time-domain wave number spectra, the vibration velocity time-domain wave number spectra and a known time-domain impulse response function, and accordingly sound pressure time-domain signals independently radiated on the measuring plane by the target sound source are acquired. Only one measuring plane is needed, a deconvolution process does not exist, and therefore the real-time sound field separating method for measuring by the adoption of the single-side sound pressure and the vibration velocities is simple in achieving mode, high in stability and capable of being used for conducting field analyses of the time-varying radiation characteristic of the target sound source under the noise interference environment.

The invention discloses a defect detecting method based on ultrasonic flaw detection. The method comprises the following steps: 1, acquiring an ultrasonic echo signal and uploading the ultrasonic echosignal synchronously; 2, determining wave crests and wave troughs; 3, eliminating extreme points; 4, dividing the signal: determining a time interval between every two adjacent extreme points, judging dividing points, determining sampling moments of the dividing points, judging signal division, sorting the dividing points and dividing the signal; 5, judging signal separation and performing signalseparation; and 6, identifying a defect. The method is simple in steps, reasonable in design, convenient to implement and good in using effect; the judgment of the dividing points and the determination of the sampling moments of the dividing points are achieved by performing threshold judgment on the time interval between every two adjacent extreme points, and the ultrasonic echo signal is divided; then signal separation judgment and signal separation are respectively performed on every divided signal, and independent ultrasonic echo signals at multiple defect positions in the same ultrasonicecho signal can be quickly and accurately identified.