140 results about "High flux" patented technology

This invention discloses a high-throughput electrocatalytic preparation apparatus for arsine and its usage method. The apparatus includes an anode electrolytic cell and cathode electrolytic cells on its left and right sides, respectively. Both the anode and cathode electrolytic cells are filled with acidic electrolyte and separated by a proton exchange membrane. The anode catalyst electrode in the anode electrolytic cell is connected to the positive terminal of a DC power supply; the cathode catalyst electrode in the cathode electrolytic cell is connected to the negative terminal of a DC power supply. An isolation valve and a cathode sludge receiving box are located at the lower end of the cathode electrolytic cell. This invention's equipment generates oxygen at the anode and arsine at the cathode through electrolysis. The principle is based on the reduction of elemental arsenic, which combines with hydrogen permeating through the proton exchange membrane to form arsine. This equipment has a simple structure and low cost. The design of dual cathode electrodes and their matching isolation valve and cathode sludge receiving box improves the efficiency of arsine production while reducing its cost, demonstrating significant application potential.

The application discloses a high-flux strong-hydrophobic composite membrane and a preparation method thereof, and belongs to the field of membrane separation and technology.The method comprises the following steps: formulating a casting solution and a preparation method, wherein the casting solution comprises a binder and a certain graphite-based carbon material; the casting solution is prepared into a film through a vacuum-assisted solvent evaporation method; and the volatilization of a solvent in the binder and the adhesion between the binder and the graphite-based carbon material are promoted at 50-100 DEG C, so that a high-flux strong-hydrophobic microporous composite membrane is obtained.The method is simple, fast and green, and lays a foundation for industrial application of the high-flux strong-hydrophobic microporous composite membrane.

This invention discloses a non-contact, high-throughput multimodal perception method and system for fish phenotypic recognition. First, underwater optical visual images and multibeam forward-looking sonar images are acquired, ensuring that each frame of the acoustic image corresponds to and is aligned with the visual image. Then, both images are downsampled twice and input into a feature network to extract acoustic features (V, V1, V2) and visual features (S, S1, S2). Next, V1 is upsampled and concatenated with V, and S1 is upsampled and concatenated with S, then fed into a first alignment enhancement network to obtain A1 and A2, respectively. Similarly, V2 is concatenated with V1, and S2 with S1 and fed into a second network to obtain B1 and B2; V2 and S2 are fed into a third network to obtain C1 and C2. Finally, A1, A2, B1, B2, and C1, C2 are fused through attention to obtain X, Y, and Z, respectively. X, Y, and Z are input into a detection model for detection, outputting the target bounding box and key points of the fish body. The target length of the fish body is calculated using camera intrinsic parameters. This invention constructs a highly fault-tolerant and practical deep learning fusion computing method.

The application provides a double-rectangular-coil high-flux inductive oil detection device, which comprises a double-rectangular-coil microfluidic chip, a signal processing circuit and a data acquisition card, wherein the double-rectangular-coil microfluidic chip comprises an oil inlet, PDMS, a microfluidic channel, a glass slide, an oil outlet, a first rectangular excitation coil, a second rectangular excitation coil, a resonance capacitor and a thin piece of permalloy; the first excitation coil and the second excitation coil are connected in parallel on a waveform generator with a voltage of U in ; the resonance capacitor is connected in parallel with the first excitation coil and the second excitation coil, and the two ends of the resonance capacitor are connected with the signal processing circuit; an excitation signal U in is a sinusoidal signal sent by the waveform generator; an output induction signal U out is also a sinusoidal alternating current signal, which is converted into a direct current signal through the signal processing circuit, and finally converted into a digital signal and stored in a computer through the data acquisition card. The application can greatly improve the microfluidic channel flux of the microfluidic chip under the premise of almost no loss of detection accuracy and stable detection results.

The application relates to a hollow ceramic ultrafiltration membrane and a preparation method thereof. The ceramic body is internally provided with a fluid passage in the axial direction. The cross section of the passage is shaped in a special shape, so that the inner wall has a circumferential undulating profile. The passage is in the axial direction in a string-bead structure formed by alternating cavities and channels. The cross-sectional area of the cavity is larger than that of the channel. The application induces axial secondary flow to destroy the boundary layer through the special cross-sectional shape, and a backflow area is formed in the cavity through the string-bead structure to generate jet impact. The two are combined to build a three-dimensional turbulent flow field, realize dynamic cleaning of the whole area of the membrane surface, significantly delay the pollution, and the preparation method comprises the following steps: preparing a support body mud; extruding the support body wet blank through a special-shaped variable-diameter extrusion die; immediately vacuum adsorbing and shaping to lock the shape after length cutting; drying and pre-sintering to obtain a porous support body; coating a transition layer and a separation layer on the inner wall in sequence; high-temperature co-sintering to obtain a finished product. The ceramic ultrafiltration membrane prepared by the application has the comprehensive performance of high flux, high precision, anti-pollution and long service life.

Techniques for measuring single synaptic signals under varying experimental conditions include controlling a video recording microscope to capture, at multiple different times, a first imaged area in a sample holder as a video frame when the sample holder is disposed on a stage and holds a sample of neuronal tissue combined with at least one fluorophore that emits a corresponding electromagnetic wavelength in a synapse during synaptic activity. At least one synaptic region of interest is determined based on a group of pixels in the first imaged area that record electromagnetic emissions from the fluorophore at the different times. An ordered time series of emission intensity is recorded in each of the synaptic region of interest. Peak emission intensity values in the time series are corrected for transmitter label transients. The ordered time series with corrected peak emission intensity values are stored in a data structure with a standard format.

This invention relates to the field of laser transfer technology, and more particularly to a high-throughput transfer method for solid-state thin films, comprising the following steps: A) preparing a transfer film and a acceptor substrate; the transfer film includes a flexible transparent substrate and a solid-state thin film adhered to the inner surface of the flexible transparent substrate; the thickness of the solid-state thin film is 2–20 μm; B) applying a transfer laser to the transfer film, allowing the transfer laser to pass through the flexible transparent substrate and irradiate the solid-state thin film, causing the solid-state thin film to melt, transfer, and deposit onto the acceptor substrate. The high-throughput transfer method for solid-state thin films proposed in this invention is advantageous in ensuring high-throughput transfer and achieving high-efficiency forming while not only improving transfer stability but also reducing application costs, thus overcoming the shortcomings of existing technologies.

The application relates to a high-flux high-rejection asymmetric polyether sulfone ultrafiltration membrane preparation method, which comprises the following steps: S1, mixing polyether sulfone, a conventional good solvent, a volatile poor solvent and a hydrophilic additive, and then uniformly placing and defoaming at a constant temperature to obtain a casting solution; S2, pouring the casting solution on a glass carrier, uniformly coating the casting solution on the glass carrier through a stainless steel scraper to form a primary film, and then performing air evaporation induction pre-phase to obtain a membrane solution; S3, immersing the membrane solution in a coagulation bath, so that the coagulation solution invades the inside of the membrane solution and gradually diffuses inward to be solidified into a film; S4, washing the solidified film formed by using pure water, and storing the film in glycerol, and the preparation of the high-flux high-rejection asymmetric polyether sulfone ultrafiltration membrane is completed. The application is simple, convenient, efficient, economical, environment-friendly and practical, and is very beneficial to product industrialization.

The present invention discloses a tangential flow filtration (TFF) chip. The TFF chip features a chip substrate assembly having a closed fluid channel and a membrane assembly. The membrane assembly includes a concentrating membrane or filtration membrane, a low-volume channel, and a standard-volume channel. One or more diaphragm / valve complexes on an integrated transfer tube and valve insert are interposed along the closed fluid channel. The closed fluid channel is in valve-controlled fluid communication with the low-volume channel and the standard-volume channel. This enables efficient and controlled filtration within a compact, integrated TFF chip design.

This invention relates to a multi-index screening method for high-entropy alloys designed to meet the performance requirements of high-temperature bearings. The invention addresses the problem of high experimental costs caused by the vast compositional design space of high-entropy alloys. Based on a virtual crystal approximation model, this invention employs a first-principles high-throughput method to calculate the mechanical properties of high-entropy alloys. It can calculate the mechanical properties of multiple high-entropy alloys simultaneously, thereby rapidly screening for high-entropy alloys with ideal mechanical properties. This reduces the heavy workload of synthesis and mechanical property testing experiments, significantly lowering experimental costs. This invention belongs to the field of bearing technology.

The present disclosure relates to a gas separation membrane assembly, which comprises at least one separation unit, the separation unit comprising a membrane sheet, an inlet gas net and a product gas flow channel assembly, the membrane sheet having opposite inlet gas side and product gas side, the inlet gas net being attached to the inlet gas side, the product gas flow channel assembly being attached to the product gas side and forming a sealed structure with the product gas side, the product gas flow channel assembly comprising a flow guide cloth and at least one layer of flow guide net arranged in a stack. The gas separation membrane assembly of the present disclosure can significantly improve the gas separation efficiency, reduce the gas flow resistance and concentration polarization effect on the product gas side, meet the requirements of high flux membrane on the assembly, effectively exert the separation performance of the membrane sheet, and be suitable for various industrial gas separation scenarios such as carbon dioxide, methane, ethanol and oxygen.

The application discloses a kind of high-flux, high selective screening UiO-66-based composite nanofiltration membrane and preparation method thereof.The UiO-66-based composite nanofiltration membrane includes substrate layer-UiO-66-based MOF transition layer-polyamide skin layer from bottom to top in sequence;The UiO-66-based MOF transition layer is coated on the surface of the substrate layer by in-situ growth, activation;The polyamide skin layer is generated on the surface of UiO-66-based MOF transition layer;Its preparation steps include: S1.washing and drying of substrate layer;S2.preparation of precursor solution;S3.in-situ growth of UiO-66 on substrate layer;S4.activation;S5.forming polyamide skin layer on the surface of UiO-66-based MOF transition layer;The membrane can be used in domestic water purification, industrial wastewater recovery, seawater desalination and the like.Under the synergistic effect of the three-layer structure of the membrane, the nanofiltration performance of flexible polymer porous membrane is significantly improved, with high flux and high selective screening, efficient water purification can be realized, and the preparation method provided by the application is low in cost, simple and easy to popularize.

The application belongs to the technical field of membrane separation, and particularly relates to a small-aperture high-flux ultrafiltration membrane and a preparation method and application thereof. Polymer material, an additive and an organic solvent are mixed, constant-temperature stirring and standing defoaming are performed to obtain a casting solution, and then a non-solvent phase separation method is used to prepare the ultrafiltration membrane. The polymer material comprises polyethersulfone and sulfonated polyphenylsulfone with a mass ratio of 95:5-80:20, and the additive is polyethylene glycol. The rejection rate of the ultrafiltration membrane to bovine serum albumin (BSA) is above 99%, the rejection rate of direct red 23 and coomassie brilliant blue and other dyes can be above 96%, and the pure water permeability is 310 L·m ‑2 ·h ‑1 ·bar ‑1 , which has a wide application prospect in the fields of antibody protein purification and concentration, dye desalination and nanoscale pollutant treatment in wastewater.

Integrated target waveguide devices and optical analytical systems comprising such devices are provided. The target devices include an optical coupler that is optically coupled to an integrated waveguide and that is configured to receive optical input from an optical source through free space, particularly through a low numerical aperture interface. The devices and systems are useful in the analysis of highly multiplexed optical reactions in large numbers at high densities, including biochemical reactions, such as nucleic acid sequencing reactions. The devices provide for the efficient and reliable coupling of optical excitation energy from an optical source to the optical reactions. Optical signals emitted from the reactions can thus be measured with high sensitivity and discrimination. The devices and systems are well suited for miniaturization and high throughput.

The application discloses a sludge active bacteria screening method coupled with high-flux Raman detection and morphological identification, and belongs to the technical field of microorganism screening and culture. The sludge active bacteria screening method provided by the application comprises the following steps: adding a pollutant to be degraded into a sludge sample, and activating active bacteria; using an isotope to label the activated sludge sample; diluting the labeled sample, screening and collecting active bacteria groups by using a high-flux flow Raman sorting instrument; using a digital cloning picking instrument to perform morphological screening on the obtained active bacteria groups, and then culturing and enriching single strains screened. The application can realize one-time accurate acquisition of functional bacteria groups with high metabolic activity and high strain diversity, and significantly improves the screening efficiency and quality.

The application discloses a microfluidic chip for preparing high-flux tumor organoids and a preparation method and application thereof. The microfluidic chip comprises a top layer and a matched bottom layer connected with the top layer; the top layer contains four hollow areas in the shape of right-angle sectors, and forms liquid storage areas after being connected with the bottom layer; four cell culture areas and four liquid exchange buffer areas are arranged in the areas of the bottom layer corresponding to the hollow areas of the top layer, and one cell culture area and one liquid exchange buffer area form a right-angle sector; the cell culture area is provided with a plurality of small chambers; and the liquid exchange buffer area is connected with the center. The microfluidic chip is provided with the liquid exchange buffer area, which greatly reduces the growth interference and loss of cells during liquid exchange, thereby being beneficial to the formation of uniform tumor organoids and keeping the tumor organoids in situ, facilitating continuous observation; and the top-open structure design is adopted, which is convenient for uniform implantation and dispersion of tumor cells and convenient for recovery of the tumor organoids.

The present disclosure relates to a system for performing laser processing. In one embodiment the system has an electronic control system and a laser processing subsystem. The laser processing subsystem has at least one laser for generating a laser beam and at least one spatial light modulator (SLM). The SLM has a plurality of pixels and generates a patterned light beam, using the laser beam, to carry out a manufacturing or material processing operation. A non-imaging metalens array is used which has a plurality of independent metalens units, each one or more being uniquely associated with one or more pixels of the SLM. The metalens array creates focal light points in accordance with the patterned light beam to at least one of manufacture a part in an additive or subtractive manufacturing process, an 3D printing process or a process or act on a material.

The application discloses a multi-category material sorting method and device based on AI machine vision and hyperspectrum, relates to the field of renewable resource recycling, and aims to solve the problem of low accuracy in complex working conditions such as same color and different materials when only visible light images are used for sorting materials in related technologies. The method comprises the following steps: obtaining visible light image data and hyperspectrum image data of the material to be sorted; identifying the material according to the visible light image data to obtain a first material category and a category confidence; when the category confidence is low or the first material category belongs to a preset easily confused category set, hyperspectrum analysis is enabled, and a second material category of the material is determined according to corresponding spectral feature data of the material as a final identification result; otherwise, the first material category is directly taken as an identification result, and finally, a sorting instruction is generated. Through intelligent cooperation of AI machine vision and hyperspectrum technology, simple materials can be quickly identified, and complex materials can be accurately distinguished, so that high-precision and high-throughput material sorting are realized.

1. The name of the design product: large flux glue maker (2). 2. The use of the design product: belongs to the field of experimental equipment, used for electrophoresis gel preparation. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective drawing.

The application discloses a high-flux fiber physiological electrode, a preparation method, an electrode array and application thereof, and belongs to the field of flexible electronics and biomedical sensing. The electrode adopts a three-layer coaxial fiber structure, the inner layer is a high-conductivity core layer containing MXene, carbon nanotubes and poly 3,4-ethylenedioxythiophene, the middle layer is an insulating layer such as polydimethylsiloxane, and the outer layer is a self-adhesive layer based on dynamic bond cross-linked polyvinyl alcohol and polyacrylic acid. The diameter of a single fiber is 50-100 mu m. By utilizing the reversible adhesion characteristics of the outer layer dynamic bond and / or non-covalent interaction, multiple fibers can be freely assembled into a high-density and reconfigurable electrode array. The array has excellent electrochemical performance, mechanical matching, interface adhesion stability and biocompatibility, and has a stimulation response and self-healing ability, is suitable for long-term stable wearable physiological monitoring and implantable closed-loop neural interface, and can realize high spatiotemporal resolution bioelectric signal recording and regulation.

This invention relates to the field of acoustic metamaterials technology, and more particularly to a high-throughput topological beam splitter based on multimode phononic crystals. The device includes: an acoustic wave transmission channel; valley phononic crystals A and B, respectively disposed below and above the acoustic wave transmission channel; valley phononic crystals A and B are composed of scatterers with a two-dimensional cross-section resembling a triangle, and the scatterers of valley phononic crystals A and B have different rotational orientations; valley phononic crystals A and B are mirror-symmetrically distributed about the acoustic wave transmission channel; the acoustic wave transmission channel includes a first segment and a second segment connected sequentially, the second segment being a coupling region, and its terminal branching into three sub-channels, the three sub-channels being located at the middle and both sides of the end of the second segment. The device provided by this invention can achieve high-throughput transmission and precisely control the acoustic wave propagation path by adjusting the operating frequency.

The present invention provides a microdroplet manufacturing device allowing mass production of uniformly sized microdroplets of good coefficient of variation (CV) and high flux (LMH) in the dispersed phase.

Filtration apparatus comprising Graphene Oxide (GO) membranes modified by incorporation of metal organic frameworks (MOFs) are described herein. The GO membranes include graphene oxide sheets coupled to a metal organic framework. Incorporation of MOFs into GO can alter the distance between the layers of the GO, affecting the transport and screening of specific molecules, thereby resulting in improved filtration apparatus performance with respect to prior art membranes (e.g., high flux and rejection rate). The filtration apparatus described herein can exhibit improved performance in applications such as pulp and paper processing, which facilitates achieving permeate quality targets.