1590 results about "Microparticle" patented technology

The invention relates to a dissolvable food gel gradient-based swallowing ability dynamic quantification method, which comprises the following steps of: constructing a microstructure unit consisting of an instantaneous surface attachment area and a middle-stage debonding layer in dissolvable food gel, and simulating early-stage sensing delay and middle-stage release response in a swallowing process; different material behavior reactions are generated in the front stage, the middle stage and the rear stage of swallowing by regulating and controlling the hydration diffusion rate, the surface tension and the internal cohesion difference value of the gel, and the gel of each stage corresponds to the set micro-viscosity and release coupling ratio, so that swallowing strategies of different stages are adapted; controllable disintegration temperature-sensing microparticles or traceable microcapsules are partially embedded in the food gel, the food gel is detained in a pharyngeal cavity after being swallowed, and the removal efficiency after swallowing is detected according to migration behaviors within a set time window; after swallowing, the reduction behaviors of the oral cavity, the tongue body and the throat muscle group are monitored, and when the characteristic action of reduction delay, secondary mouth opening, repeated swallowing or pharyngeal itching occurs, it is judged that the swallowing behavior closed loop is interrupted.

The invention discloses a neodymium iron boron magnet with a protective film and a manufacturing method thereof, and the manufacturing method specifically comprises the following steps: S1, pretreating a plurality of raw materials to ensure the purity and cleanliness of the raw materials; s2, the pretreated materials are mixed in proportion and smelted to prepare uniform neodymium-iron-boron alloy; s3, the smelted alloy is crushed, and particle powder meeting the requirement is prepared through jet mill equipment; s4, the powder is put into a mold, forming orientation is conducted through a magnetic field press, and the maximum residual magnetism is obtained; s5, performing high-temperature sintering on the molded magnet to improve the density and the magnetic performance of the molded magnet; s6, the sintered magnet is machined, and the needed size and shape are obtained; s7, carrying out pretreatment on the surface of the magnet, and carrying out aftertreatment after chemical nickel plating to ensure the quality of a plating layer; according to the method, the surface of the neodymium-iron-boron magnet is coated with a high-phosphorus chemical nickel layer in a plating mode, the magnet can be effectively prevented from being corroded by the external environment, and the service life of the magnet is prolonged.

The invention discloses a preparation process of acellular matrix particles, and relates to the technical field of biomedical material processing. The invention provides an acellular matrix particle preparation process based on a biological enzyme method and a fluidized bed principle. The acellular matrix particle preparation process comprises the following steps: alkali treatment, acellular dehydration, grinding and screening. The step of screening is based on the fluidized bed screening principle, the acellular matrix particles are input into a fluidized bed layer, the particles suspended on the fluidized bed layer can settle rapidly under the action of fluid, and the particles with small particle sizes can rise along with the fluid and enter a discharging system. The preparation process can realize accurate screening of acellular matrix particles, significantly reduce the particle size fluctuation range, can directionally prepare particles in a specific particle size interval, and has the characteristics of high efficiency, continuous production, simple operation and strong applicability.

The invention relates to a composition of polyester particles and sodium hyaluronate, which is prepared by the following steps: preparing PCL (Polycaprolactone) microspheres with the particle size of 20-50 microns by an emulsion method; hA is selected, and a PBS buffer solution is used for preparing an HA solution; repeatedly freezing and thawing in a refrigerator at-80 DEG C for 3 times to form micro-crosslinked HA gel; and mixing the microspheres and the micro-crosslinked HA gel according to a mass ratio of 25: 75. The invention provides a technology of taking the physically micro-crosslinked HA as a suspension carrier, so that the polyester particles or microspheres can be stably suspended in an HA solution system without a chemical crosslinking agent, and an injection product has better biocompatibility and safety. HA which does not contain a chemical cross-linking agent and polyester particles / microspheres are mixed to serve as a medical beauty filling system, and the problem of stable suspension of the polyester particles / microspheres in the HA is solved by performing physical micro-crosslinking on the HA.

The invention discloses a honeycomb ceramic and a preparation method thereof.A composite additive is added into a mixed ceramic raw material, the weight ratio of the mixed ceramic raw material to the composite additive is (30-50): (50-70), and the composite additive comprises 30-54 parts of flaky aluminum oxide, 2-10 parts of nano zinc oxide and 1-5 parts of metal molybdenum particles; the preparation method comprises the steps of ball milling, kneading, refining, extrusion forming, drying and sintering. According to the invention, the raw material formula is optimized, and bauxite is replaced by flaky alumina; beneficial additives, namely nano zinc oxide and metal molybdenum particles, are doped; an original extrusion molding device is used for achieving a layered structure of flaky aluminum oxide, and therefore the shell-imitating pearl layer structure with the layered aluminum oxide as bricks, the metal molybdenum particles as mud and the zinc-aluminum spinel particles as protrusions is built.

The present disclosure relates to a photoreactor and method of use thereof. In an aspect, the photoreactor can be configured as a solar panel comprising a channel containing a heterogeneous photocatalyst. When water or another hydrogen-containing liquid is pumped through the photoreactor, it contacts the photocatalyst in the presence of UV or visible irradiation, simultaneously releasing hydrogen and separating the hydrogen via a gas-permeable membrane. In an aspect, the photoreactor can be used in a method for continuous production of high-purity H2 gas, the method comprising dehydrogenating tetrahydroquinoline (THQ) to form quinoline under visible light using a Rh / TiO2 heterogeneous photocatalyst. In another aspect, the catalyst includes Rh particles photodeposited on TiO2 microparticles. In a further aspect, the method can include regenerating THQ from quinoline using a water gas shift (WGS) reaction.

Microparticles for detecting biological materials are provided. Each of the microparticles includes: a core-shell structured microparticle consisting of a core including a magnetically responsive metal and a shell layer surrounding the core and having a uniform thickness; and capture probes introduced onto the shell layer to capture biological materials.

The invention relates to the technical field of rock plates, and particularly discloses a microcrystal colored crystal rock plate and a production process thereof, and the production process comprises the following steps: S1, cooling a pressed green body, and then spraying ground glaze; s2, a pattern layer is printed on the ground coat layer in an ink-jet mode, digital glue is printed after positioning, colored crystal dry particles are applied, drying is carried out after redundant dry particles are removed, transparent microcrystal dry particles are applied after fixing protection glue is sprayed, and drying is carried out after fixing protection glue is sprayed; and S3, polishing after firing. The rock plate has diamond-like gloss through the high refractive index of the colored crystal particles, the microcrystal dry particles can achieve fine texture and high glossiness, and the fixing protection glue is applied to the microcrystal dry particles and the colored crystal dry particles, so that the effect of fixing the dry particles can be achieved, and the wear resistance and the antifouling property can be improved.

The present invention relates to a crop nutrition and fortifying composition comprising: i. Elemental sulfur; ii. One or more water insoluble or water soluble magnesium salts or derivatives or mixtures thereof; iii. One or more water-insoluble or water-soluble potash fertilizers or salts or derivatives or mixtures thereof; iv. One or more water insoluble or water soluble iron salts or derivatives or mixtures thereof; v. One or more water insoluble or water soluble zinc salts or derivatives or mixtures thereof; vi. One or more water-insoluble or water-soluble boron salts or derivatives or mixtures thereof; vii. At least one trace element selected from the group consisting of water-insoluble or water-soluble vanadium salts or derivatives or mixtures thereof and water-insoluble or water-soluble selenium salts or derivatives or mixtures thereof; and viii. One or more excipients wherein the composition comprises microparticles having a size in the range of 0.1 to 50 microns, and wherein the total content of the water-soluble salts, derivatives or mixtures in the composition does not exceed 80% of the total weight of the composition. The invention also relates to a method for preparing the crop nutrition and fortifying composition and a method for treating a plant, a seed, a crop, plant propagation material, a locus, parts thereof or soil with the crop nutrition and fortifying composition.

The invention discloses a TiAl alloy electron beam selective melting and shot peening strengthening in-situ compounding manufacturing method and device, and relates to the technical field of additive manufacturing. The method comprises the following steps: establishing a three-dimensional digital model of a to-be-printed part, and performing slicing and layering to obtain layered scanning data; under the vacuum condition, TiAl alloy powder is spread on the preheated base plate according to the set thickness, and a powder bed is formed; according to the layered scanning data, scanning and melting the powder bed through a focused electron beam, completing single-layer scanning and melting, completing scanning and melting layer by layer until the part is printed and cooled, and recovering unmelted TiAl alloy powder; and under the vacuum condition, the surface of the printed part is scanned and heated through a defocusing electron beam, TiAl alloy powder is adopted as shot blasting powder, the surface of the heated part is subjected to microparticle shot blasting strengthening treatment, after the treatment is finished, cooling is conducted, scattered shot blasting powder is recycled, and the finished TiAl alloy part is obtained. By means of the collaborative process design of electron beam selective melting and in-situ high-temperature microparticle shot blasting and device integration, the problems that in TiAl alloy additive manufacturing, cracking is prone to occurring, and the strengthening effect is poor are solved.

Mobile or stationary air filter (L) or room fan (RL) according to Figure 1, comprising an outer wall (5), a (2) for generating an airflow (3) which is guided through an air filter material (1.1), an air inlet (2.1) and an air outlet (2.2), wherein the air filter material (1.1) contains poly(styrenesulfonic acid) (sulfonic acid biocide) (1.3) cross-linked with divinylbenzene and / or an acidic salt (1.3.1) (sulfonic acid biocide salt) of the sulfonic acid biocide (1.3) with biocidal cations, wherein the sulfonic acid biocide (1.3) and / or sulfonic acid biocide salt (1.3.1)(i) are positively and / or materially bonded to and / or in inert carriers and, in the fixed state, are in direct contact with carrier materials (1.1.7) on and / or in which biocidal Metal microparticles of a mean particle size d50 of 0.1 µm to <1,000 µm are fixed, and / or (ii) with carrier materials (1.1.7) on and / or in which biocidal metal microparticles of a mean particle size d50 of 0.1 µm to <1.000 µm are fixed, are mixed; its use and methods for the production and environmentally friendly disposal of air filter materials (1.1).

The invention discloses a large-current-carrying-capacity flexible power cable, which belongs to the technical field of cable preparation, is used for solving the technical problem that the flame retardant property and the mechanical property of the power cable need to be further improved in the prior art, and specifically comprises a cable core, a wrapping layer, an insulating layer and a sheath layer which are sequentially arranged from inside to outside. The preparation method comprises the following steps: preparing alkoxy silane containing a benzocyclobutene group, preparing flame-retardant particles by using a sol-gel method, preparing modified polyurethane by using modified polysiloxane and 2, 5-furandimethanol as soft segments, naphthalene diisocyanate as a hard segment and trimethylolpropane as a chain extender, and preparing the flame-retardant flame-retardant polyurethane. The linear low-density polyethylene, the MAH-g-PE, the modified polyurethane, the flame-retardant particles and the auxiliary additive are melted and extruded outside the wire core to form the insulating layer, so that the power cable is obtained, the flame-retardant property of the power cable is effectively improved, and the mechanical property and the current-carrying stability of the power cable are also improved.

The invention relates to the technical field of microfluidics, in particular to a high-throughput and high-efficiency cell extrusion microfluidic system and a particle introduction method. And a closed-loop control system integrating real-time cell deformation sensing, dynamic parameter decision and physical extrusion and alternating electric field cooperative application is constructed. The chip is provided with an inlet shunting device, a micro-channel and a channel structure of a microelectrode. The method comprises the steps of real-time deformation image acquisition and analysis and dynamic extrusion parameter decision and cooperative application. The invention provides a high-flux and high-efficiency cell extrusion microfluidic system and a particle introduction method, and aims to solve the problems that the drug loading efficiency and the survival rate are difficult to consider due to heterogeneity in the existing cell extrusion technology and a physical extrusion and electroporation coordinated regulation strategy is lacked, so that personalized precise treatment of cells is realized, and the cell quality is improved. The drug loading efficiency, the cell survival rate and the high throughput are obviously improved.

The invention discloses a red up-conversion luminescent material, which belongs to the field of inorganic luminescent materials, the chemical formula of the material is NaEr < 0.65 > F4: Yb < 0.2 > / Gd < 0.1 > / Tm < 0.05 >, and up-conversion microparticles of the red up-conversion luminescent material are used as a bifunctional luminescent temperature sensor which can be used for a 293348 K low-temperature region sensitization sensor and a 348498 K high-temperature region thermal quenching sensor. After near-infrared light with the wavelength of 980 nm excites Yb < 3 + > ions, through efficient energy transfer between Er < 3 + > and Tm < 3 + >, different changes of near-infrared response type 654 nm and 808 nm red up-conversion luminescence characteristics can be used for non-contact optical temperature measurement under the extreme temperature condition. Temperature detection is realized based on thermal coupling energy levels of 4F9 / 2 to 4I15 / 2 and 3H4 to 3H6, and the distance between two emission peaks is large, so that the data processing error is greatly reduced; excitation light and emission light are located in an optical window of the biological tissue, and absorption and self-fluorescence of the biological tissue are greatly reduced. The preparation method is based on the green chemistry concept, takes water as a solvent and adopts a one-step hydrothermal method for synthesis, the preparation method is simple, the required temperature is low, the preparation process is easy to control, the material crystal phase is good, the phase is uniform, the yield is high, the material performance is stable, and the good temperature response effect is achieved.

The invention discloses a micro-scale turbine blade boundary layer heat-flow double-field synchronous test method and system. The test method comprises the steps that temperature field initial data and velocity field initial data are acquired; based on the initial data of the temperature field and the initial data of the velocity field, the distribution state of the microparticles in the boundary layer is diagnosed, and according to the diagnosis result, the optimal distribution of the microparticles in the boundary layer is obtained by feeding back and controlling the operation parameters of the reverse cyclone separation system; based on the optimal distribution, an improved PIV algorithm is adopted to calculate a boundary layer velocity field, and the improved PIV algorithm is obtained by introducing multistage grid adaptive encryption, physical constraint conditions and a transition area recognition mechanism into the PIV algorithm; a boundary layer temperature field reconstruction model is established, depth phase coupling is carried out on a temperature field reconstruction result and a boundary layer velocity field, synchronous analysis of heat-flow coupling behaviors in a turbine blade boundary layer is achieved, and finally a boundary layer coupling cloud picture reflecting heat-flow interaction characteristics is obtained.

The invention discloses a visual detection test method for damage cracks of a solidified soil test piece, and particularly relates to the technical field of geotechnical engineering material detection. The method comprises the following steps: doping fluorescence labeling particles in a solidified soil test piece, and applying periodic load to induce crack formation after curing and forming; synchronously exciting fluorescent particles through an ultraviolet excitation light source, and collecting a short-wave fluorescence response image sequence; inputting the image sequence into a deep residual neural network model, identifying a nonlinear enhancement region of a fluorescence signal, and deducing a crack initiation position and a propagation path; constructing a three-dimensional dynamic model of crack evolution in combination with an image space reconstruction algorithm and time sequence comparison, extracting indexes such as a crack propagation rate, a bending angle and crack density, performing comparative analysis on the indexes and initial parameters of a material, evaluating a microstructure damage development mechanism, and outputting a visual damage evolution result; the method provided by the invention can realize high-precision, non-destructive and dynamic detection of the fine cracks in the solidified soil, and has the advantages of high identification sensitivity, strong modeling precision and good engineering adaptability.

The present invention provides a class of ultra-high molecular weight polyethylene microparticles having a small particle size and a low bulk density. Specifically, the present invention provides microparticles having the following characteristics: (a) a viscosity-average molecular weight in the range of 1 million to 5 million; (b) at least 90% by weight passing through a 100-mesh sieve; a particle median diameter (d50) of 40 μm < d50 < 80 μm; and (c) a powder bulk density of 0.25 to 0.33 g / cm 3 The ultra-high molecular weight polyethylene particles provided by the present invention are suitable for producing microporous filter materials.

The invention belongs to the technical field of wastewater treatment and energy recovery, and provides a regulation and control method for promoting anaerobic acid production by taking soybean molasses as a substrate through cooperation of ferroferric oxide and bamboo charcoal. Soybean molasses is used as a substrate carbon source, anaerobic activated sludge is inoculated in a medium-temperature SBR reactor, the volume ratio of reactor inflow sewage to sludge is 2: 1, ferroferric oxide and bamboo charcoal composite conductive particles which are subjected to ball milling treatment and have the concentration of 1 g / L are added to promote an anaerobic fermentation system to produce acid, and then anaerobic fermentation is carried out. The mass ratio of ferroferric oxide to bamboo charcoal in the ferroferric oxide and bamboo charcoal composite conductive particles is (1: 2)-(2: 1); monitoring the acid yield, the pH value change and the product type; and the variety and concentration of the acid-producing substance are analyzed, and the interaction of all the components in the reaction process is evaluated. The acid production rate and the total acid production amount in the anaerobic acid production process are obviously improved. And the activity of anaerobic flora is promoted. The variety distribution of acid-producing substances is obviously optimized, and the stability of the acidification process is improved.

The invention discloses a logic chip mask defect detection method, and relates to the technical field of integrated circuit manufacturing, and the method comprises the following steps: S1, constructing a scattering response model of sub-wavelength inorganic particles on the surface of a mask, and constructing a scattering response model of sub-wavelength inorganic particles on the surface of the mask under a set multi-angle polarized light incidence condition; non-linear disturbance influence of inorganic particles with different particle sizes on the reflected light phase in each incident polarization state is simulated, and a scattering response template containing standard phase disturbance characteristics is generated; and S2, based on a scattering response template, carrying out pixel-by-pixel matching analysis on the acquired multi-angle polarization phase diagram on the surface of the mask, identifying a local area matched with the template, and marking the local area as a suspected scattering interference area. According to the method, through construction of the scattering response template and multi-angle polarization consistency analysis, accurate distinguishing of artifacts and real defects is achieved, the recognition precision and stability under complex interference are improved in combination with structure retention type phase reconstruction and dynamic threshold recognition, and mask quality control and photoetching yield improvement are facilitated.

The invention discloses a method for preparing a micro-particle-size negative oxygen ion purifying agent from a nano material, and relates to the technical field of air purifying agents, the method comprises the following preparation steps: step 1, pouring 5-6.5 g of modified tourmaline powder and 10 g of an amino acid-nano particle compound into 200 mL of deionized water, then adding 0.5-0.54 g of polyvinylpyrrolidone, carrying out ultrasonic treatment for 30-40 min, then adding 0.5-0.54 g of polyvinylpyrrolidone into the deionized water, carrying out ultrasonic treatment for 30-40 min, and carrying out ultrasonic treatment for 30-40 min; carrying out ball milling until the particle size is 1-5 microns; 2, adding 2-2.6 g of a chitosan solution with the concentration of 1% after ball milling, adjusting the pH value of the system to 6, and stirring at 50 DEG C for 1 h; according to the method for preparing the micro-particle-size negative oxygen ion purifying agent from the nano material, tourmaline powder is modified, so that the surface hydroxylation degree of the tourmaline powder is improved, lattice defects are increased, the negative oxygen ion release efficiency is remarkably improved, meanwhile, the tourmaline powder is compounded with white carbon black, interface charge conduction can be enhanced, and continuous release of negative oxygen ions is further promoted.

The invention relates to an injection device and method for particles, and the device comprises a liquid environment which is used for placing a carrier, and the particles are attached to the carrier; the special ultrasonic device is located in a liquid environment so as to generate a sound beam current in the liquid environment; the liquid supply flow channel is used for conveying an injection substance into a sound beam of the special ultrasonic device; the special ultrasonic device and the particles can be in a relatively fixed state, and the particles are located in an operable range of a sound beam of the special ultrasonic device, so that the injection substance is injected into the particles through the sound beam. According to the invention, injection aiming at single cells is realized, and particularly quantitative injection can be realized based on pulse type sound beam current.

The present invention relates to a colloidal composition comprising unmodified, discrete cellulose microparticles, such as a colloidal emulsion or colloidal gel, a method of preparing the colloidal composition and uses of the colloidal composition and cellulose particles The colloidal composition comprises a continuous phase and a dispersed phase, wherein the continuous phase is a liquid; wherein the dispersed phase comprises cellulose microparticles which are dispersed in the continuous phase of the colloidal composition, wherein the cellulose microparticles have a mean average particle length of from 0.1 to 20 µm a mean average particle width from 0.05 to 1.3 µm, and a maximum thickness not exceeding 0.2 µm determined by scanning electron microscopy; and an aspect ratio of length / width of 1 to 25, and wherein the colloidal composition has a flow index n of ≤ 1 determined by a rheometer at NTP (normal temperature (25°C) and pressure (1 atm)).

The application relates to a modified separation membrane in the technical field of membrane materials, a preparation method and application thereof. The modified separation membrane comprises a base film and a nanostructure layer on the upper surface of the base film and the membrane hole surface close to one side of the upper surface of the base film; wherein the pore size of the base film is 120-400 mu m; the nanostructure layer is composed of microparticles with a size of 100-1000 nm; the preparation method comprises 3D printing of the separation membrane; and the upper surface of the separation membrane and the membrane hole surface close to one side of the upper surface of the separation membrane are subjected to plasma treatment. The modified separation membrane preparation method combines the 3D printing technology and the membrane separation technology, improves the traditional membrane preparation process, finds a more optimal membrane replacement process, and the modification method is free of chemical agents, has the advantages of being more convenient and fast to operate, high in separation efficiency, low in processing cost, green and pollution-free, and the like, and has important significance in the aspects of membrane separation technology improvement and application of oily wastewater treatment.

In certain embodiments, the present invention relates to biodegradable microparticles for sustained release drug delivery comprising an active agent and a three-dimensional covalently cross-linked polymer matrix, as well as methods of making and uses thereof. Furthermore, in certain embodiments, the present invention relates to pharmaceutically acceptable, biodegradable sustained release drug delivery systems comprising biodegradable microparticles for sustained release drug delivery, in particular for coating or use as medical implants, and methods of making the same. In certain embodiments, the invention also relates to corresponding methods of treatment, methods for controlling the release of an active agent and the use of the biodegradable microparticles for sustained release drug delivery.

The invention discloses an ultraviolet-aging-resistant high-toughness wind power cable and a preparation method thereof, belongs to the technical field of cable preparation, is used for solving the technical problem that the ultraviolet aging resistance and toughness of a wind power cable in the prior art need to be further improved, and specifically comprises a wire layer, a shielding layer and a sheath layer; the preparation method comprises the following steps: coating an organic silicon layer on the outer side of a nano titanium dioxide particle and modifying amino to obtain a modified chain extender, carrying out chain extension on a long-chain polyurethane structure to obtain composite polyurethane, and carrying out hydrolysis by taking activated glass microspheres as a matrix and tetramethyl orthosilicate as a supplement to obtain modified aerogel. The preparation method comprises the following steps: preparing modified aerogel, modifying ferroferric oxide particles on the modified aerogel by using in-situ loading, further modifying perfluoro groups to obtain composite aerogel, finally mixing composite polyurethane, the composite aerogel and auxiliary materials, and performing melt extrusion to obtain a sheath layer of the wind power cable, thereby obtaining the wind power cable.

The invention discloses a terminal and a terminal manufacturing method. The terminal comprises a terminal body which is provided with a matching part used for being matched with a matching terminal. A first bottom plating layer and a first silver graphite plating layer formed on the first bottom plating layer are formed on the contact surface of the matching part of the terminal body. Graphite particles are uniformly dispersed in the first silver graphite plating layer, so that the wear resistance and the conductivity of the matching part of the terminal body are improved. According to the invention, the silver graphite plating layer has excellent wear resistance and conductivity, can greatly improve the matching times of the terminal and the matching terminal, and can reduce the plugging resistance between the terminal and the matching terminal.

The invention discloses a magnetic aggregation induced emission particle fluorescence-electrochemical nucleic acid dual detection chip and system.The chip comprises a chip body and an upper cover, and a plurality of electrochemical reaction detection cavities and fluorescence reaction detection cavities are formed in the left side and the right side of the chip body in the front-back direction respectively; the electrochemical reaction detection cavities and the fluorescence reaction detection cavities are arranged in a one-to-one correspondence manner; each electrochemical reaction detection cavity and each fluorescence reaction detection cavity are provided with a flow channel, and one end of each flow channel is communicated with the electrochemical reaction detection cavity or the fluorescence reaction detection cavity; the other end of the sampling tube is communicated with an MAIE electrochemical detection auxiliary liquid sample adding hole and an MAIE fluorescence detection auxiliary liquid sample adding hole which are formed in the chip main body; a plurality of MAIE electrochemical detection sample adding holes and MAIE fluorescence detection sample adding holes are formed in the upper cover, and corresponding openings are formed in the positions, corresponding to the MAIE electrochemical detection auxiliary liquid adding holes and the MAIE fluorescence detection auxiliary liquid adding holes, of the upper cover.

A filtration unit (100) configured to remove microparticles from a water stream from at least one washing machine (WM) is provided. The filtration unit comprises an inlet (110) configured to deliver a water stream (WS) from at least one washing machine (WM), a water reservoir (120) configured to receive the water stream (WS) from the inlet (110), a separator module (130) fluidly connected to the water reservoir (120), wherein the separator module (130) is configured to separate microparticles (MP) from the water stream (WS) creating a filtered water stream (FWS), and an outlet (150) configured to allow the filtered water stream (FWS) to leave the filtration unit (100). A method for removing microparticles from a water stream is also provided.

The present application relates to the field of product quality inspection and evaluation of composite materials, and in particular, a method for rapid inspection and evaluation of zeolite loading and zeolite loading uniformity in zeolite composite materials, specifically as follows: in a multi-component system containing zeolite, by sequentially performing selective coloring operations and enhanced color development operations on zeolite microparticles, the originally colorless zeolite microparticles are transformed into zeolite particles with a specific dark color, and the color of the non-zeolite components is not changed during the above-mentioned treatment process, thereby transforming the microscopic zeolite loading determination technical problem into a macroscopic color depth analysis problem. The inspection and evaluation method of the present application has the advantages of being fast, low-cost, and capable of parallel operation. Based on the inspection and evaluation method provided by the present application, an analysis technology for continuous and non-omission load uniformity information of the inspection area can be developed.

The invention discloses a liquid molding compound for eliminating flow marks and a method and application thereof, and relates to the technical field of electronic packaging materials, the liquid molding compound comprises the following components by mass: 85%-90% of silicon dioxide, 4%-8% of epoxy resin, 5%-8% of an anhydride curing agent, 0.2%-0.5% of organic pregel microparticles, 0.2%-0.3% of a catalyst, and 0.1%-0.2% of carbon black, the maximum particle size of the silicon dioxide is less than 75 microns, and the particle size distribution of the silicon dioxide is as follows: 1.4 microns < = D10 < = 1.6 microns, 12 microns < = D50 < = 18 microns, and 40 microns < = D90 < = 50 microns. The flow mark of the liquid molding compound is improved by adopting the silicon dioxide with different particle size distribution, the catalyst formed by compounding the silicon dioxide and the organic pre-gel microparticles, so that the liquid molding compound has no flow mark after being packaged and cured, and the comprehensive performance and the production yield of a packaged device are improved.