233 results about "Particle type" patented technology

The invention discloses a particle-typed composite fertilizer of humic acid and manufacturing method, which consists of dressing and karyosome, wherein the dressing contains nitrogen, phosphor and potassium. The manufacturing method comprises the following steps: graining humic acid; cladding; graining; solidifying fused fertilizer on the particle of humic acid; making the composite fertilizer dissolved into water without falling; fitting for large scale of agricultural product.

An improved method and system of identifying individual aerosol particles in real time. Sample aerosol particles are collimated, tracked, and screened to determine which ones qualify for mass spectrometric analysis based on predetermined qualification or selection criteria. Screening techniques include one or more of determining particle size, shape, symmetry, and fluorescence. Only qualifying particles passing all screening criteria are subject to desorption / ionization and single particle mass spectrometry to produce corresponding test spectra, which is used to determine the identities of each of the qualifying aerosol particles by comparing the test spectra against predetermined spectra for known particle types. In this manner, activation cycling of a particle ablation laser of a single particle mass spectrometer is reduced.

The present invention provides electrically and thermally conductive compositions for forming interconnections between electronic elements. Invention compositions comprise three or more metal or metal alloy particle types and an organic vehicle comprising a flux that is application specific. The first particle type includes a reactive high melting point metal that reacts with a reactive low melting point metal(s) in the other particles to form intermetallic species. The reactive low melting point metal(s) of the invention are provided in two distinct particle forms. The first reactive low melting point metal particle includes a carrier that facilitates the reaction with the reactive high melting point metal. The second reactive low melting point metal particle acts primarily as a source of the reactive low melting point metal. Combination of the three particle types provides several advantages including reduction of the undesirable characteristics of the carrier metal while preserving and, in some embodiments, enhancing, the advantageous facilitation of the metallic reaction.

A lithium cell positive electrode material consists of base material of LiNi1-x-y CoxMyO2 and cladding material of oxide nanofilm. Its preparing method includes coprecipitating Ni salt, Co salt and salt aqueous solution of at least one third metal element by alkali liquid to prepare presoma of mixed hydroxide, sintering mixed hydroxide with compound with Li to prepare positive electrode base material in particle type, coating a cladding material of nanofilm on particle surface of base material.

A system and method for developing and utilizing particle-based n-multiplexed assays that include three or more reporters utilizes n particle sets that are associated with particle identification images or labels (IDs) that differ between sets. The encoded particles for a given set are coated with a specific binding member, or in the case of the sandwich assay with coupled capture and detector binding pair members, to form particle types. The sets of particle types are then pooled, and aliquots of the particle types are removed to assay vessels. Next, samples with three or four reporter molecules are supplied to the respective vessels. After one or more incubation periods, the particles are supplied to a reader system, which determines the particle IDs to identify the particle types and also detects the reporter signals. The reader system includes multiple excitation lasers that excite the various reporters in sequence or in parallel, to supply associated signals to one or more detectors. Emission filters and wavelength discriminators are included such that a given detector receives at a given time the signals associated with a single assay binding label. The system further develops greater capacity sandwich assays by assigning subsets of capture and detector antibody pairings to the three or four reporters, respectively. The system performs greater numbers of differential RNA expressions based on the use of the three or more reporters, with one or more reporters assigned to the reference sample and the other reporters assigned to respective test samples. The system and method are also capable of performing greater numbers of SNPs utilizing primer extension reactions, by assigning different color reporters to the respective nucleotides or terminators.

Systems, methods and computer program products for the multi-modal detection of particles are described herein. An embodiment of the present invention is a particle detector that includes a first chamber wherein analyte particles are subjected to a first particle detection mechanism, and a second chamber coupled to the first chamber, wherein the analyte particles are subjected to a second particle detection mechanism, and wherein the detection characteristics of second particle detection mechanism are orthogonal to detection characteristics of the first particle detection mechanism. According to another embodiment, the present invention is a particle detection method including the steps of detecting presence of at least one predetermined particle type in an analyte particle sample using a first particle detection mechanism, and confirming the presence of the predetermined particle type in the analyte particle sample using a second particle detection mechanism, wherein detection characteristics of the second particle detection mechanism are orthogonal to detection characteristics of the first detection mechanism.

The invention discloses a preparation method of granular film coated sodium percarbonate, which solves the problem of the quite low stability of the prior products. In the invention, hydrogen peroxide and sodium carbonate are used as raw materials, an appropriate stabilizer and process parameters are selected to synthesize the granular type film coated sodium percarbonate product, and the raw materials are treated by the steps of dissolution, reaction, centrifugation, fluid bed spray liquid pocket, drying, etc. to prepare the high-stability granular type film coated sodium percarbonate; the bulk density of the granular type film coated sodium percarbonate prepared by the method of the invention is 750 to 1150kg / m3, the grain size is 0.8 to 1.4mm, the content of reactive oxygen species is 13.1 percent to 13.6 percent; the moisture stability is higher than 70 percent and the thermal stability is higher than 90 percent; the product is widely applicable in daily chemical, organic synthesis and other industrial fields.

The invention relates to a built-in micro-particle type tuning and friction energy dissipation damper, belonging to the field of structural engineering earthquake proofing and damping and wind resistance technology, and comprising that: a box body connected with a building structure floor member or a beam column member, damping particles placed in the box body, an internal clapboard and a connecting member of the box body; the damping particles are evenly stacked in a space formed by the box body, the internal clapboard and the connecting member in appropriate volume according to actual conditions; under the action of wind or earthquake, the whole box body can tune the natural vibration characteristic of the structure, and multidimensional vibration, friction and collision can fully occur between each damping particle as well as between the damping particles and the internal clapboard. The built-in micro-particle type tuning and friction energy dissipation damper of the invention has simple construction, convenient installation and adjustment, agile reaction and functions of multidimensional tuning damping and friction and collision damping, and can effectively reduce the reaction of the original structure under the dynamic action of wind or / and earthquake and the destructiveness of the original structure.

The invention relates to the preparation of a stone protection treatment agent and aims to provide a method for preparing a surface lyophobic oleophobic protection treatment agent. The method comprises the following steps: mixing butyl titanate with absolute ethyl alcohol; slowly adding the mixture into an acid hydrolyzing solution; reacting for 1-12 hours at 50 DEG C, thereby acquiring a particle type nanometer titanium dioxide sol; adding a silane coupling agent and performing hydrolytic-polymeric reaction for 1-24 hours under a water-bath condition at 30-80 DEG C, thereby acquiring a compound sol; adding perfluor monomer, acrylate organic matter, amide organic matter and azodiisobutyronitrile, and then reacting for 2-10 hours under a water-bath condition at 70 DEG C; cooling to 40 DEG C and then adding a mixed solvent of ketone and alcohol; and stirring for 2 hours, thereby acquiring the surface lyophobic oleophobic protection treatment agent. After the protection treatment agent is coated on the surface of stone, the nanometer titanium dioxide permeates through the surface of the stone and is firmly loaded on the surface, thereby increasing the micro surface roughness of the stone, enhancing the lyophobic oleophobic property of fluoro acrylic copolymer, endowing the stone with ultra-lyophobic oleophobic surface property, and achieving a water-contacting angle being 147 DEGC.

A particle detection system that images and detects particles in a fluid flow stream through use of detector array(s) is described. The detection system may include light source arrays that may selectively illuminate a particle in a fluid stream. The detection system may also include a detector array employing smart binning to read the measured signals. The smart binning of the detector array may be achieved through knowledge of an exact particle location provided by a position sensitive detector. The detector array(s) may be low cost based on intelligence built into the system. This particle detection system may be particularly useful for detection and discrimination of different particle types since the read-out of the particle signals can be accomplished with low noise and can be flexible enough to optimize the read out measurements for each particle. The particle detection system may be used, for example, in early warning contamination detection systems and manufacturing processes.

The invention relates to a passive filling adsorption sampling device for air volatile contaminant concentration detection, belonging to the detection field of indoor environment. The device comprises particle type adsorbent, a porous shell, a base, an outer cover and a rubber washer, wherein the outer cover is filled with the particle type adsorbent, the shell is put on the base, the outer cover is sheathed outside the shell and is sealed with the base by a washer. The device adopts the passive adsorption sampling without any external power; the adsorption sampling along the radial direction of the shell can be realized after the particle type materials are filled so as to have the large adsorption area and save the materials consumption; the target contaminants comprise multiple indoor organic volatile contaminants, which are put into a thermal desorption tube after being sampled, and then the sample concentration is analyzed directly by gas chromatograph with a thermal desorption or an automatic thermal desorption function or a gas chromatography / mass spectrometer; the device is small and portable, is capable of being arranged in the room to detect the average concentration of the contaminant within a certain time and also can be wore by personnel to detect the average exposure within a certain time; and the fillers can be used repeatedly after undergoing the aging and regeneration.

The invention provides an improved thin film transistor (TFT) that can be formed at room temperature and has an improved contact resistance between an active layer and source and drain electrodes, and further provides a flat display device using such a TFT. The TFT includes an active layer including at least two nano particle layers which include at least one nano particle type, an insulating layer interposed between the nano particle layers, a gate electrode insulated from the active layer, and source and drain electrodes formed in respective channels, the source and drain electrodes contact one of the nano particle layers of the active layer. The structure of the TFT facilitates the simultaneous manufacturing of a plurality of different types of TFTs.

The invention discloses a heavy oil thermal recovery fleeing proof agent comprising the following raw components by weight percent: sodium silicate 10-30%, ethyl acetate 0.5-3%, ammonium chloride 0.3-1.3%, aluminium citrate 0.005-0.015%, EDTA or EDTA salt 0.01-0 .03%, and the balance of water. The gelatinization time of the fleeing proof agent is 4-12 h. The gelatinized fleeing proof agent can resist steam with a temperature of 300 DEG C, can be used together with a suspended particle type fleeing proof agent, is used for performing deep fleeing prevent of a thermal recovery well with serious steam fleeing, and can enhance the fleeing proof effect. The fleeing proof agent can particularly be used for a heavy oil thermal-recovery sand-prevention well and can directly conduct fleeing prevention in the presence of a sand prevention layer or a sand prevention tool, thereby reducing the construction cost and achieving good effect.

The invention discloses an inversion method of thunderstorm charge distribution by means of dual-polarization Doppler weather radar echo. The inversion method of thunderstorm charge distribution by means of dual-polarization Doppler weather radar echo includes the steps: establishing the mapping relation between a dual-polarization Doppler weather radar echo parameter and a hydrometeor particle charge sensitive factor; and according to the mapping relation, converting the radar echo parameter information, such as the reflectivity factor, the Doppler velocity, the spectral width, the hydrometeor particle type and the height, into the related parameters, such as the hydrometeor particle type required by a hydrometeor particle charge parameterization scheme, bringing the result after conversion to the hydrometeor particle charge parameterization scheme, calculating the charge amount of each echo data point, point by point, and realizing inversion of thunderstorm charge distribution. The inversion method of thunderstorm charge distribution by means of dual-polarization Doppler weather radar echo integrates the electrification theory of thunderstorm, the charge structure model and the dual-polarization Doppler weather radar detection technology into one body to realize detection of thunderstorm charge distribution by means of the dual-polarization Doppler weather radar, thus being able to improve the monitoring capability of the dual-polarization Doppler weather radar for thunderstorm.

An apparatus for, and a method of, characterizing a plurality of particles carried by a fluid that can be urged to move through a channel in a microfluidic cassette by combining data analysis of a first signal that is optically-based, and data analysis of a second signal that is electrically-based. Optically-based information is typically obtained by a digital image sensor. Electrically-based information can be obtained by direct measurement of impedance; sometimes in an arrangement operating under the Coulter principle. Data provided by exemplary characterization includes at least one of: volumetric cell count; viability percentage or ratio; particle type; and a particle size histogram.

A particle detection system that images and detects particles in a fluid flow stream through use of detector array(s) is described. The detection system may include light source arrays that may selectively illuminate a particle in a fluid stream. The detection system may also include a detector array employing smart binning to read the measured signals. The smart binning of the detector array may be achieved through knowledge of an exact particle location provided by a position sensitive detector. The detector array(s) may be low cost based on intelligence built into the system. This particle detection system may be particularly useful for detection and discrimination of different particle types since the read-out of the particle signals can be accomplished with low noise and can be flexible enough to optimize the read out measurements for each particle. The particle detection system may be used, for example, in early warning contamination detection systems and manufacturing processes.

The invention relates to a transmission electron microscope equipped with a 2k−2k pixel area Slow Scan Cooled Charge Coupled Device Camera connected to an image processing software for generating an image of a sample. A segmentation of gold particles in the sample is achieved by the separation from specimen structure and background noise. An identification and classification of particle types is carried out according to the shape and size of the detected particles or particle pairs and finally, the gold particle distribution is visualized by the generation of false color overlay images as well as the indication of the numbers in the image.

A particle counter and classification system including an imaging subsystem configured to determine the size and morphology of particles above a predetermined size in a fluid in a sample cell. A first stage magnetometer sensor subsystem is tuned to detect and determine the size of ferrous and / or conducting particles. An optional second stage magnetometer sensor subsystem is tuned to detect the overall ferrous particle content of the fluid. A processor subsystem is configured to calculate and report the number of particles in the fluid in a plurality of size ranges, their morphology, their classification as a particular particle type according to their characteristic morphology, the number of ferrous and / or conducting particles, and the overall ferrous content of the fluid.

Highly functionalized, porous organosilica particles and methods of their synthesis are described that employ high amounts of functional silane such as 3-mercaptopropyl trimethoxysilane. Silane particle diameters are controlled from less than 1 μm to over 100 μm. The particles have a high surface area due to their advantageous internal structures, which consist of large pores, typically up to 10 μm that are linked by small channels of typically about 20 nm diameter. Isothiocyanate modified fluorescent dyes can enter and react with thiol groups inside the pores. The invention also provides clear silica shells of controlled thicknesses to protect fluorescent signals and provide an independent parameter for distinguishing particle types based on light scattering off different sized particles. The particles are stable and useful for many purposes, particularly for optical bar coding in combinatorial synthesis of polymers such as nucleic acid, polypeptide, and other synthesized molecules.

Aqueous dispersions contain at least two chemically different particle types having a diameter on average of less than 100 μm. The dispersions are resistant to sedimentation and gelling for long periods of time, and can be used for many purposes, such as the polishing of optical surfaces, and in paints and adhesives.

The invention relates to a stacking type scintillator detector capable of simultaneously measuring beta and gamma power spectrums. The stacking type scintillator detector has a housing with one end opened and an aluminized polyester film for sealing the opening; three layers of scintillation crystal structures and a photoelectric multiplication module are arranged in the aluminized polyester film; the photoelectric multiplication module collects scintillation photons generated by the three layers of the scintillation crystal structures and generates signals. A method for simultaneously measuring beta and gamma power spectrums performs identification on seven types of situations through analyzing a shape of an anode output pulse of a photoelectric multiplier tube in the photoelectric multiplication module, extracts characteristic quantities, determines whether a waveform generated by specific crystal is contained in the pulse and finally realizes discrimination on types of particles. The stacking type scintillator detector of the invention can realize type screening on beta and gamma particles in an energy range from 100keV-3.5MeV, and can respectively obtain a beta power spectrum and a gammapower spectrum in a mixed field through one time measurement and has significance to radiation source identification and radiation protection measurement design in the mixed field.

The invention discloses a method for simulating a fluidized bed with dynamic changes of grain density and particle size. The method comprises the following steps: 1, establishing a basic flow reaction model in the fluidized bed; 2, establishing a mathematical model for describing a change rule of the grain phase density and particle size; 3, establishing a particle type sectioned drag model; and 4, predicting flow reaction characteristics in the fluidized bed. According to the method disclosed by the invention, the fluidized bed with dynamic changes of grain density and particle size is subjected to simulation study by adopting a computational fluid mechanics method, the mathematical model for describing a change rule of the grain phase density and particle size is combined to perform real-time correction on the density and particle size of the particles, and the acting force between gas-particle phases in a coexisting system of multiple particle types through the particle type sectioned drag model, so that the flow reaction characteristics in the fluidized bed with the dynamic changes of grain density and particle size are accurately predicted. According to the method, lots of complicated and expensive experiment researches are not needed, and lots of manpower and material resources and time cost can be saved.

A melt and concrete interaction analysis method based on a particle method mainly comprises the following steps that 1, conducting particle modeling, and setting initial arrangement and parameters ofparticles; 2, establishing and dividing a background grid according to nodes, and retrieving neighbor particles; 3, calculating the enthalpy value, temperature and phase state of the particles; 4, calculating eutectic and chemical reactions, updating particle matter components and physical property parameters, meanwhile, calculating chemical heat and updating the particle enthalpy value, temperature and phase state; 6, calculating gas motion and updating the particle type, speed and position; 7, displaying and calculating a viscosity item, a surface tension item and a gravity item in the momentum equation, and estimating the particle speed and position; 8, displaying and calculating a pressure item in the momentum equation by using the estimated particle position, and correcting the particle speed and position; 9, outputting a calculation result. All phenomena of interaction between the melt and the concrete are considered. Based on a particle method, the free liquid level can be accurately captured and modeling and accurate phase change processing are facilitated and large-scale calculation is facilitated by adopting the display pressure model.

An antireflective coating composition includes a photopolymerizable acrylate monomer (C1); a particle-type metal fluoride (C2) with a refractive index of 1.40 or less; a photopolymerization initiator (C3); and at least one liquid dispersion-enhancing chelating agent (C4) selected from the group consisting of Mg(CF3COO)2, Na(CF3COO), K(CF3COO), Ca(CF3COO)2, Mg(CF2COCHCOCF3)2 and Na(CF2COCHCOCF3). This composition ensures good mechanical strength, excellent adhesion to a substrate, short curing time by UV curing, prevention of dust attachment, good erasure of stain, good dust removal and good scratch resistance, so it is usefully for making an antireflective coating film of a display.

An antireflective coating composition includes a hydrolytic condensate (C1) of alkoxy silane (C11) and fluoric alkoxy silane (C12); a particle-type metal fluoride (C2) with a refractive index of 1.40 or less; and a liquid dispersion-enhancing chelating agent (C3). A coating film to which the above composition is applied controls refractive index, surface energy, film strength and so on, so it ensures excellent antireflective characteristic, excellent scratch resistance, good erasure of liquid stains such as fingerprints, and particularly excellent dust removal, so it may be usefully applied to an outermost layer of a front surface of a display regardless of kind of a display substrate or presence of an additional coating layer.

The invention discloses a particle classification statistic method for a scatter diagram, a particle classification statistic system for scatter diagram and a blood cell analyzer. The particle classification statistic method for the scatter diagram comprises the following steps of acquiring two-dimensional signals representing different features of particles, and generating a two-dimensional scatter diagram; pre-classifying the scatter diagram, and performing transformation, noise elimination and smoothing on the generated two-dimensional scatter diagram; classifying scatter diagram particles, and endowing each particle in the scatter diagram with a corresponding particle type; performing scatter diagram particle parameter counting, counting the number of the particles with the same particle type, calculating the percentage of each type of the particles in all the particles, and culling the particles with the interference type to realize classification statistics. According to the particle classification statistic method, features of normal samples can be met, and features of special samples can also be met; therefore, the identification error on the special samples is reduced.

The invention relates to a purifying method for a particle type slag steel, wherein, an autogenous tumbling mill is used to mill without media the particle type slag steel that is weathered, smoldered and in particle size >60 mm, TFe>50%, and an semi-autogenous tumbling mill is used to mill with media the particle type slag steel that is weathered, smoldered and in particle size 30-60 mm, TFe 30 swung dash 50%. During the milling, the non magnetic slag and small steel particles attached on the slag steel surfaces separate from the substrates due to the bumping and rubbing between the milling body and the raw materials, and between the raw materials. After being discharged from the mills, the raw materials smaller than 30 mm are sieved away to obtain class A slag steel with TFe>=90% and class B slag steel with TFe>=80%. The invention has the advantages of the compact structure, the small footprint, the no waste water, waste slag and waste gas discharging and the no dust flying during the production, and the realization of clean production while realizing hi-efficiency use of steel slag resources. The class A / B slag steel sieved from the particle slag steel can be directly used by steel and iron making plants.