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 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 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.