617results about "Analysis by electrical excitation" patented technology

A method for real-time, multi-parameter monitoring of fluid quality, comprising the steps of: transiently transforming a continuous stream of the fluid into non-thermal plasma using at least one dielectric barrier discharge plasma chamber; subjecting the liquid to a pressure drop, generating a biphasic liquid-gas stream; continuously ionizing the biphasic liquid-gas stream through a controlled electric field, produced by at least one dielectric barrier electrode; channeling at least one molecular or atomic emission toward a spectrum analysis module; detecting the at least one molecular or atomic emission through the spectrum analysis module; and analyzing the at least one molecular or atomic emission through the spectrum analysis module.

Apparatus and methods for monitoring emissions from a borehole to determine the composition of earthen material removed from the borehole are described. Monitoring can be done in real time as the borehole is being deepened with a millimeter-wave drilling beam. The present technology can monitor in real-time the elemental composition of the earthen materials (e.g., rock, minerals, crystals, metals, etc.) in a borehole created by a directed-energy beam that melts and vaporizes the earthen material materials in its path. Using a continuous emissions monitor (CEM) in combination with directed-energy excavation of a borehole enables rapid surveying of the subsurface for precious and commercial metals.

The invention discloses a performance optimization method and system for an organic light-emitting material, and relates to the related technical field of light-emitting material optimization, and the method comprises the steps: preparing an initial OLED material sample set according to a preset formula; building a real-time monitoring platform, and carrying out luminescence performance monitoring according to a preset luminescence performance index; carrying out intensive screening on the sample luminescence performance index data set, and determining data representing the sample luminescence performance indexes; and carrying out directional optimization on the thickness and the doping ratio of the functional layer in the preset formula by taking the standard luminescence performance index data as a constraint, obtaining an optimized formula, and carrying out OLED material preparation. The technical problems that in the prior art, OLED material preparation depends on an empirical formula, performance monitoring is not accurate, functional layer parameters and the doping proportion are difficult to effectively optimize, the OLED material is poor in light-emitting performance, and the service life of a device is short are solved, and the technical effects of improving the light-emitting performance of the OLED material and prolonging the service life of the device are achieved.

The invention discloses a power distribution network insulation defect detection method and system based on an electroluminescent composite material, and relates to the technical field of electrical equipment insulation detection.The method comprises the steps that an electroluminescent gradient doping coating material is prepared and sprayed to the surface of a pretreated detected insulating part; acquiring an electroluminescent signal of the detected insulating part and real-time data of environment temperature and humidity, and performing preprocessing, inputting the preprocessed electroluminescent signal into a pre-constructed light-electric field nonlinear mapping model, performing basic electric field inversion, and performing local correction on a three-combination-point area through a weight factor; global environment compensation is carried out through a pre-trained BP neural network, and a corrected electric field inversion result is obtained; and on the basis of a preset dimensionless electric field index dynamic threshold value, labeling coordinates of an abnormal region in a corrected electric field inversion result in real time, evaluating a defect risk level in combination with weighted D-S evidence, and realizing remote display and early warning of a thermodynamic diagram through a cloud protocol.

The present invention addresses the problem of providing an analysis method capable of analyzing the state of a target object in detail in a short time without requiring complicated operations or devices. An analysis method for solving the abovementioned problem comprises: a step of mixing and causing an interaction between a target object and one or more types of luminescent probe having a luminescence behavior that changes in response to an interaction with the target object; a step of exciting the one or more types of luminescent probe in a state of interaction with the target object to generate two or more types of luminescence, and simultaneously detecting the two or more types of luminescence; and a step of analyzing the two or more types of detected luminescence to identify the state of the target object.

Aspects of the disclosure relate to methods and compositions (e.g., kits) for detecting anti-repeat-associated non-ATG (RAN) protein antibodies in a subject (e.g., a subject that has been administered a therapeutic anti-RAN protein antibody or a vaccine against a disease or disorder associated with RAN protein expression, translation, and / or accumulation, for example amyotrophic lateral sclerosis (ALS) and / or frontotemporal dementia (FTD)). In some embodiments, methods described by the disclosure comprise detecting one or more anti-RAN protein antibodies in a biological sample obtained from a subject by an electrochemiluminescence-based immunoassay using one or more target di-amino acid repeat peptides. In some embodiments, the disclosure relates to kits comprising one or more di-amino acid repeat peptides and an electrochemiluminescence-based immunoassay plate and / or reagents.

This disclosure relates to magnetic microgel beads, and in particular to magnetic microgel beads for biofunctionalization and methods of making and uses thereof, for example, in biosensing assays. In an embodiment, a magnetic microparticle comprising a magnetic nanoparticle encapsulated by a polymer hydrogel. In another embodiment, an assay for detecting the presence of a target analyte in a sample comprising a) the magnetic microparticle disclosed herein, wherein the biorecognition agent further comprises a reporter moiety; b) an electrochemical chip comprising a working electrode, a counter electrode and a reference electrode; and c) a capture probe functionalized on the working electrode; wherein binding of the biorecognition agent to the target analyte results in production of an electrochemical, electroluminescent or photoelectrochemical signal.

A method 400 of capturing and processing electroluminescence (EL) images 1910 of a PV array 40 is disclosed herein. In a described embodiment, the method 400 includes controlling the aerial vehicle 20 to fly along a flight path to capture EL images 1910 of corresponding PV array subsections 512b of the PV array 40, deriving respective image quality parameters from at least some of the captured EL images, dynamically adjusting a flight speed of the aerial vehicle along the flight path, based on the respective image quality parameters for capturing the EL images 1910 of the PV array subsections 512b, extracting a plurality of frames 1500 of the PV array subsection 512b from the EL images 1910; determining a reference frame having a highest image quality of the PV array subsection 512b from among the extracted frames 2100; performing image alignment of the extracted frames 2100 to the reference frame to generate image aligned frames 2130, and processing the image aligned frames 2130 to produce an enhanced image 2140 of the PV array subsection 512b having a higher resolution than the reference frame. A system, image processing device, and aerial vehicle for the method thereof are also disclosed.

The present invention is directed to assay methods and compounds and kits used in such assays.

The present invention relates to assays, methods, and kits to assess traumatic brain injury (TBI) in a subject. The present invention also relates to ultrasensitive assays for GFAP, tau, CKBB, IL-1β, IL-2, IL-6, IL-10, IL-22, IP-10, TNFα, TSLP, NFL, and / or NFH.

A device (200) for collecting and analyzing aerosol particles includes a fluid storage tank (206) for generating a condensing fluid (256) having a first temperature; and an aerosol collection port (202) having a vapor inlet (212) for receiving the condensing fluid, and an aerosol inlet (222) for receiving an aerosol stream having a second temperature that is lower than the first temperature. The condensing fluid (256) is mixed with the aerosol stream in the aerosol collection port (202) producing a mixed stream. The device also includes a growth tube (204) configured to receive the mixed stream and condense aerosol particles to form a gaseous stream containing grown droplets which contain aerosol particles; and a converging nozzle (248) in fluid communication with the growth tube (204). The device allows for semi-continuous measurement of aerosol samples, and the measurement cycle can include: i) collection of particles onto a substrate (238), ii) analysis using spectroscopic techniques, and iii) removal of samples and preparing for next measurement.

The invention relates to the technical field of electrochemical luminescence detection application, and discloses a single molecule detection method based on AI and electrochemical luminescence, and the method comprises the following steps: collecting electrochemical luminescence signal data of a sample to generate a data set, and receiving real-time signals to construct a matrix; processing the signal data matrix, extracting features in combination with the data set, predicting single molecule distribution according to the signal intensity gradient and the detection path information, outputting space-time distribution features through an AI model, and updating the data set; detection parameters such as sensor sensitivity, light source intensity and sampling frequency are dynamically adjusted according to distribution characteristics. According to the method, through combination of AI and electrochemical luminescence, determination of single molecule detection characteristics and dynamic adjustment of detection parameters are realized, and the accuracy and efficiency of single molecule detection are improved.

The invention relates to the technical field of elemental analysis, in particular to an all-elemental analysis method for unknown waste. The all-element analysis instrument provided by the invention comprises an inductively coupled plasma emission spectrometer (ICP-OES), an inductively coupled plasma mass spectrometer (ICP-MS), an X-ray fluorescence spectrometer (XRF), an energy dispersive X-ray spectrometer (EDS), an infrared carbon-sulfur analyzer, an oxygen-nitrogen-hydrogen analyzer, an elemental analyzer (EA), a chemical method, a spark direct-reading spectrometer and an ion chromatograph (IC). The all-element analysis can accurately determine the contents of components and elements in the product, and can provide high-quality and comprehensive data, thereby helping researchers to better understand the interaction and influence among the elements. All-element analysis of the unknown waste is of great significance to improvement of waste resource utilization efficiency, optimization of waste treatment process, promotion of green low-carbon technical progress and formulation of effective resource utilization measures.

The present disclosure provides compositions, reagents, kits, systems, system components, and methods for performing assays. More particularly, the disclosure relates to an assay composition for detecting luminescence, which comprises an alkyl diethanolamine, for example, N-butyldiethanolamine (BDEA). In embodiments, the assay composition comprises 2-dibutylaminoethanol (BDAE).

The invention provides a bulk metal ore grade online analysis method based on high-voltage pulse discharge breakdown spectroscopy, which comprises the following steps: (a) placing bulk metal ore particles in a high-voltage discharge electrode system filled with a liquid insulating medium, and applying 30-250kV voltage through a high-voltage electric pulse generator to carry out pulse discharge, carrying out electric breakdown on the ore particles and generating plasmas; (b) synchronously acquiring a plasma characteristic spectrum signal and a voltage waveform signal and a current waveform signal of pulse discharge in the electric breakdown process; (c) preprocessing the characteristic spectral signal, determining element types according to the wavelength of a characteristic spectral line, and extracting the intensity of the characteristic spectral line; and (d) inputting the characteristic spectral line intensity, the pulse discharge waveform parameter, the discharge condition and the ore particle property into a pre-established quantitative analysis model, and outputting the metal element grade of the ore particles.

The invention provides a subfissure testing method of a flexible support assembly panel and a related device, and relates to the photovoltaic field. Determining a traction stroke of a traction device based on the parameter value of the vibration parameter of the target panel, determining a parameter value of a hidden crack test parameter according to the parameter value of the vibration parameter and the traction stroke of the traction device, and performing hidden crack test operation on the target panel by using the parameter value of the hidden crack test parameter to obtain a hidden crack test result, the hidden crack test of the flexible support assembly panel is realized, so that the flexible support assembly panel can be replaced in time when the hidden crack test of the flexible support assembly panel is not qualified. Besides, in the testing process, the traction device moves up and down, and the elongation of the assembly cable provided with the target panel changes correspondingly, so that the target panel is driven to move, the wind pressure effect in an actual installation scene and the vibration condition when the actual assembly panel is subjected to wind pressure are simulated, the testing scene is matched with the actual installation scene, and the testing accuracy is improved. And the accuracy of the subfissure test is improved.

An abnormality detection device trains a model using multiple network sections each configured to process acquired time series data sets and a concatenation section configured to combine output data output from each of the multiple network sections and to output, as a combined result, a result of combining the output data output from each of the multiple network sections. The trained model is then applied to adapt a unit of process performed during manufacture of a processed object.

The invention discloses a component analysis device in a metal smelting process, the component analysis device comprises an adjusting frame, a sample table, a workpiece positioning frame, a gas spraying protection assembly and an electrode cleaning unit, the adjusting frame is used for adjusting the distance between the surface of a workpiece and an electrode, and the sample table is used for bearing the workpiece and providing a stable platform for electrode detection; accurate adjustment of the distance between electrodes is achieved through lead screw transmission of the adjusting frame, the adjusting frame is matched with a sample table through hole to limit an arc excitation area, workpiece displacement is prevented by means of a needle-shaped clamping piece of the workpiece positioning frame, it is ensured that the arc is stably excited at the optimal distance, and meanwhile, the arc excitation efficiency is improved. The gas spraying protection assembly accurately controls the argon blowing amount through an electromagnetic valve and a thermal mass flow meter, waste gas is exhausted in combination with a centrifugal fan and a machining table micropore structure, a rotating brush is driven in cooperation with a connecting rod of the electrode cleaning unit, and all-directional cleaning of an electrode and a sample table cavity is achieved.

The invention discloses a method and a system for automatically identifying cathodic luminescence colors of different minerals in rock in the technical field of rock and mineral identification. The method comprises the following steps: step 1, preparing a rock slice sample; step 2, acquiring a first fluorescence image through a cathode luminescence microscope, and establishing a basic model; 3, acquiring a second fluorescence image by using different optical filters, determining a brightness change value and a light wavelength mark based on the second fluorescence image and the first fluorescence image, and marking the light wavelength into the basic model; step 4, sequentially comparing the brightness change value with a set brightness reference value to obtain a difference value, and obtaining a fluorescent color area corresponding to the difference value smaller than a threshold value; acquiring a third fluorescence image by using a polarizing microscope, determining a fluorescence color mark corresponding to the fluorescence color area based on cathode luminescence characteristics corresponding to different minerals, and adding the fluorescence color mark into the basic model; the fluorescent colors are distinguished according to weak color changes, so that the cathodic luminescence colors of different minerals of the rock are automatically identified.

The present invention is directed to methods for improving assay specificity and performance in binding assays.

Electrochemiluminiscence generation method comprising the step of placing an aqueous liquid sample on an electrode system comprising at least one working electrode, one auxiliary electrode and optionally one reference electrode, the liquid sample comprising water, hydrogen peroxide, chloride ions, and a luminol or a derivative of luminol as an electrochemiluminiscent substance, and applying a potential at which at least one gas bubble is generated covering at least the working electrode, the gas bubble comprising chlorine, wherein the chlorine in contact with the water is transformed into hypochlorite, which oxidizes the luminol or the derivative of luminol giving rise to an electrochemiluminescence emission. Method for the detection or quantification of at least one analyte applying the electrochemiluminescence generation method.

The present disclosure provides compositions, reagents, kits, systems, system components, and methods for performing assays. More particularly, the disclosure relates to an assay composition for detecting luminescence, which comprises an alkyl diethanolamine, for example, N-butyldiethanolamine (BDEA). In emodiments, the assay composition comprises 2-dibutylaminoethanol (BDAE).

A molten metal bath composition analysis system includes: a laser oscillator that oscillates a laser beam; a cylindrical probe that includes an opening end immersed in a molten metal bath, supplies an inert gas toward the opening end, and guides the laser beam to the opening end to irradiate a molten metal with the laser beam; and a detector that detects and spectroscopically analyzes plasma emission of the molten metal caused by the irradiation with the laser beam, wherein at least one of the position of the opening end of the cylindrical probe in the molten metal bath and the angle of the cylindrical probe with respect to a vertical direction can be controlled.

Compositions, articles, systems, and methods for sensing and / or authentication using luminescence imaging are generally provided. In some embodiments, the article is associated with an emissive material comprising an emissive species. In some embodiments, the emissive species has a radiative lifetime of at least 10 nanoseconds. A characteristic of the article may be determined by acquiring an image comprising time-dependent information related to the emissive species. In certain cases, the radiative lifetime of the emissive species may be determined from the image. Because the radiative lifetime of an emissive species may be modified by numerous factors, including, but not limited to, binding to or proximity to other molecules, temperature, pH, and radiation exposure, the measured length of the radiative lifetime may provide information regarding a characteristic of the associated article. In some cases, the emissive material comprising one or more emissive species may be used to identify and / or authenticate the associated article.

The present disclosure discloses a device for detecting substances in a liquid to be tested using plasma spectroscopy, including an electrode, at least a portion of which is configured to be disposed in the liquid to be tested and is suitable to contact the liquid to be tested, the electrode being suitable to generate a plasma in the liquid to be tested by applying an external voltage, wherein the plasma is located in a bubble generated by the external voltage; a light detector, configured to detect the emission spectrum generated by the plasma in the bubble, wherein the light detector is an optical fiber, and there is no focusing element between the light detector and the plasma.

A plasma source chamber (10) for use in a spectrometer comprises an inner housing (11) for accommodating a plasma source (31) and an outer housing (12) accommodating the inner housing. The outer housing (12) comprises at least one outer air inlet opening (21) in a first wall and at least one outer air outlet opening (22) in a second wall. Walls of the inner housing and walls of the outer housing define a spacing (25) so as to allow a first air flow (1) from the at least one outer air inlet opening (21) to the at least one outer air outlet opening (22) through the spacing (25) between the inner housing and the outer housing. The inner housing (11) comprises at least one inner air inlet opening (23) in a first wall and at least one inner air outlet opening (24) in a second wall to allow a second air flow (2) from the at least one inner air inlet opening to the at least one inner air outlet opening through the inner housing. Thus, an improved cooling of the outer surfaces of the plasma source chamber is achieved.

The invention relates to a sample chamber for taking samples from a molten metal bath, in particular a molten steel or iron bath. The sample chamber comprises a flat cover plate and a housing, which are configured to be assembled together along an analysis surface AP to form a sample cavity. The housing comprises an immersion surface and an opposite end surface, and a top surface and a bottom surface. The housing comprises a first opening on the immersion surface and a second opening on another surface. The top surface has at least one recess and consists of a distribution segment, a ventilation segment and an analysis segment, the analysis segment being bounded by the analysis surface AP. The distribution segment and the ventilation segment are arranged below the analysis segment in the direction from the top surface to the opposite surface of the housing, the maximum and minimum cross-sectional areas of the analysis segment perpendicular to the central longitudinal axis X of the housing do not deviate from each other by more than 20%. The invention further relates to a sampler comprising a sample chamber according to the invention and a carrier tube adapted to accommodate at least a part of the sample chamber.

To provide a composition and method for executing assay measurement.SOLUTION: The present disclosure provides a composition, a reagent, a kit, a system, a system component, and a method for performing assays. More specifically, the present disclosure relates to an assay composition for detecting luminescence, including an alkyldiethanolamine, e.g., N-butyldiethanolamine (BDEA). In some embodiments, the assay composition includes 2-dibutylaminoethanol (BDAE).SELECTED DRAWING: None

The application discloses a kind of gas isotopic ratio measurement system and method, it relates to gas isotopic measurement technical field, in the system, double-layer sealed panning gauge is used to obtain the mixed gas to be measured, after energization, make the mixed gas to be measured occur panning discharge, produce the light signal containing each isotopic characteristic spectrum;Double-layer sealed panning gauge includes gauge tube, coaxially arranged inner layer sealing structure and outer layer sealing structure;Lens group is used to collect and focus light signal;Optical fiber is used for remote transmission light signal collected by lens group;Spectrometer is used for the light signal transmitted by optical fiber is spectrally resolved, forms the spectrum according to wavelength development;Photoelectric detector is used to convert spectrum into electrical signal;Computer is used to determine the proportion of each isotopes in the mixed gas to be measured according to electrical signal.The application realizes redundancy protection by double-layer sealing structure, ensures that discharge condition is stable under harsh environment, prevents gas leakage, realizes high-precision and safe measurement of gas isotopic ratio under high-risk scene.