64 results about "In situ analysis" patented technology

The invention discloses an intelligent gradient extraction process and method for nutritional ingredients in yak bone marrow, and belongs to the technical field of bioactive substance extraction. The extraction method comprises the following four steps: gradient pressure supercritical degreasing, double-enzyme synergistic gradient enzymolysis, acid concentration gradient demineralization and temperature gradient gelatin extraction, and through the process coupling design of gradient pressure degreasing, buffer enzymolysis, graded acidolysis and membrane separation of gelatin, the high yield of the product in the previous stage is ensured; active structures of follow-up components are reserved to the greatest extent. Meanwhile, a sensing-decision-execution closed-loop system is constructed, real-time data sources such as NIR moisture sensing, online OPA detection and XRD in-situ analysis are integrated, technological parameters are dynamically adjusted through a multi-objective optimization algorithm, and global optimization of the yield, the purity and the energy consumption is achieved.

The invention belongs to the field of basic research of sandstone type uranium ore associated resource evaluation, and particularly relates to a method for judging the existence form of associated gallium in a sandstone type uranium deposit, which comprises the following steps of: measuring the contents of major elements and trace elements of a plurality of uranium ore samples, and judging whether gallium meets the lowest grade requirement of associated resources of the uranium deposit; for uranium ore samples exceeding the lowest grade requirement of gallium associated resources, correlation analysis of gallium elements, main elements and trace elements is carried out, and possible key mineral types closely related to gallium are preliminarily speculated; carrying out slice analysis, and circling an approximate range of speculated possible key mineral types; carrying out scanning electron microscope and energy spectrum analysis combined observation, and determining the existence form of gallium in the uranium deposit; the position exceeding the associated grade gallium is determined through laser in-situ analysis; the gallium-related mineral type is directly determined through electron probe analysis; and comprehensively judging the existence form of gallium in the uranium deposit. According to the method, the existence form of associated gallium in the sandstone type uranium deposit can be accurately and quickly judged.

The present disclosure generally relates to methods and compositions for interrogating and / or analyzing DNA methylation in a biological sample. In some aspects, the present disclosure relates to methods for determining the methylation status of a region of interest of genomic DNA. In some aspects, the methylation status is analyzed by interrogating converted DNA in which the sequence of the converted DNA is indicative of the methylation state of the DNA. In some aspects, the methods comprise generating a collective signal that is based on the methylation states of a plurality of sequences or residues in the DNA, and that is representative of the methylation status of the region of interest as a whole.

This application provides an iron-based thin-film probe, an in-situ analysis method for soil micro-interface pollutants, a screening method for iron-based materials for soil remediation, and a soil remediation method, belonging to the field of environmental analysis and testing technology. The iron-based thin-film probe, used to study the role of iron-containing mineral micro-interface pollutants in soil, is prepared from an iron sheet through in-situ surface modification; wherein the modified surface formed by the in-situ surface modification is selected from any one of nano-zero-valent iron, iron oxide, and iron sulfide; the iron-based thin-film probe is used to simulate the adsorption, distribution, and redox reactions of iron-containing mineral micro-interface pollutants in soil.

A wearable smart ring includes an annular body sized to receive a finger, photoplethysmography (PPG) sensors arranged along an inner peripheral surface, and a microfluidic perspiration collector disposed at the inner surface. The collector has microchannels that draw perspiration by capillary action into one or more reservoirs and includes a region that concentrates or retains biomarkers. A docking station mechanically receives the ring for charging and interfaces with the collector to transfer fluid and / or perform in-situ analysis. The dock includes optical instrumentation (e.g., photometry, spectroscopy such as Raman) and may implement pumping and flushing to reset the collector for subsequent use. A controller communicates results by wireless links. The system enables passive collection of perspiration during wear and detailed biomarker analysis during charging, thereby augmenting PPG-derived physiological measurements with perspiration chemistry without burdening ring power or size.

The present invention relates to a computer-implemented method for training a neural network for classifying images of objects suspended in a substance, preferably crystals of that substance, and to a computer-implemented method that uses this trained neural network for analyzing objects suspended in said substance, particularly crystals suspended in said substance, especially for real-time monitoring of the progress of a crystallization process of that substance. Figure 7 to be published

The application discloses a heating transmission device suitable for in-situ detection of ultrahigh-temperature pyrolysis reaction, comprising a heating pipe and an adjusting assembly; a sample outlet end of the heating pipe is connectable to a detection device; the heating pipe is divided into a low-temperature zone, a high-temperature zone and an annealing zone; a first water-cooled electrode is arranged outside the low-temperature zone; and a second water-cooled electrode is arranged outside the annealing zone; the adjusting assembly comprises a guide rail and a sliding block; and the sliding block is connected with the first water-cooled electrode or not. The application forms a variable-diameter and variable-temperature zone through combination design of the heating pipe and the water-cooled electrode, guarantees contact between the heating pipe and the protective electrode, builds a relatively slow and uniform temperature gradient in the annealing zone, guarantees generation and dispersion of product molecules and improves transmission efficiency of macromolecular compounds. The application is convenient to connect with a mass spectrometer, can realize in-situ analysis of ultrahigh-temperature pyrolysis reaction and solves the problem that macromolecular products such as polycyclic aromatic hydrocarbons, fullerenes and the like cannot be detected in-situ due to aggregation caused by intermolecular forces in the pyrolysis reaction.

The invention discloses a Q620-grade high-toughness and high-corrosion-resistance steel plate and a production method thereof. The steel plate comprises the following chemical components in percentage by weight: 0.08 to 0.09 percent of C, 0.15 to 0.40 percent of Si, 1.35 to 1.45 percent of Mn, less than or equal to 0.020 percent of P, less than or equal to 0.003 percent of S, less than or equal to 0.005 percent of Nb, less than or equal to 0.005 percent of Ti, 0.08 to 0.10 percent of Als, 0.30 to 0.70 percent of Cu, 0.7 to 1.5 percent of Ni, 0.04 to 0.05 percent of V, 0.40 to 0.45 percent of Mo, 0.30 to 0.35 percent of Cr, 0.001 to 0.002 percent of B and 0.08 to 0.30 percent of Sb. The core performance and the fatigue performance are improved by adopting a Nb-free and Ti-free design technology, the process parameters are improved through an in-situ analysis technology, the core quality of the steel plate is improved through the specific design of chemical components, and the statistical segregation degree of C, Mn, Ni, Cu and Sb is smaller than or equal to 0.05. The method is suitable for producing the steel plate with the thickness specification being smaller than or equal to 100 mm, the yield strength being larger than or equal to 620 MPa, the tensile strength being larger than or equal to 720 MPa and the impact toughness KV2 being larger than or equal to 120 J at the low temperature

The present disclosure relates in some aspects to methods for analyzing antigen receptor transcripts in a biological sample. In some aspects, nucleic acid molecules are generated from V(D)J transcripts in situ in the biological sample to enrich molecules comprising V(D)J joins. In some aspects, the presence, amount, and / or identity of a plurality of V(D)J transcripts are analyzed in situ. Also provided are oligonucleotides, sets of oligonucleotides, compositions, and kits for use in accordance with the methods.

The utility model discloses an in-situ CT (Computed Tomography) analysis device for real-time observation of a soldering tin melting process. The in-situ CT analysis device comprises a heating box, an X-ray receiving device arranged above the heating box and an X-ray emitting device arranged below the heating box, the heating box comprises a mounting box body; a first mounting groove is formed in the top of the mounting box body, and a product clamping mechanism is further mounted in the first mounting groove; and the product clamping mechanism comprises two clamping rods. Based on the X-ray detection principle, the internal structure change in the soldering tin melting process can be observed in real time, the hysteresis and destructive problems of a traditional method are solved, the annular infrared heating pipe is adopted, it can be ensured that a soldering tin sample is evenly heated, temperature change in the real welding environment is simulated, meanwhile, shielding of ray imaging is avoided, and the welding quality is improved. And the resolution and the precision of CT scanning are improved.

The present disclosure in some aspects relates to methods for assessing multi-modal in situ transcriptomics by combining microscopy and sequencing technologies and methods. In some aspects, the methods provided herein involve analyzing one or more analyte panels in a sample using a first imaging modality or set of imaging modalities. Based on said analysis, a different analyte panel and / or one or more different imaging modalities can be selected for subsequent analysis.

The invention relates to the technical field of nano material processing, and discloses an in-situ cleaning method for a transmission electron microscope sample material surface pollution layer. According to the in-situ cleaning method provided by the invention, in a high-vacuum environment of a transmission electron microscope, a controllable and localized physical and mechanical action is applied to a preselected microscopic area on the surface of a sample by using a precisely controllable nano needle tip, so that surface pollutants are directly removed in manners of scraping, stripping and the like; the nondestructive detection capability of the transmission electron microscope is used as real-time feedback, and finally, on the premise that the intrinsic structure of the sample is not damaged, the atomic-scale clean surface of the sample is exposed, and real-time in-situ analysis is carried out; compared with a traditional external preparation or in-situ cleaning technology, the method has the advantages that a pollution layer is removed by adopting a controllable mechanical contact effect, so that additional damages such as ion implantation, thermotropic degeneration and chemical pollution are fundamentally avoided, and an intrinsic structure of a material is really revealed on an atomic scale; and in addition, in-situ physical property measurement can be immediately carried out on the clean surface after cleaning.

The present disclosure relates in some aspects to methods and compositions for in situ analysis involving preparation and treatment (e.g., de-crosslinking) of biological samples. Preparation of biological samples comprising nucleic acid analytes and protein analytes for detection are provided. Methods, in which the sample with bound probes is contacted with a buffer at a temperature above 80°C, improve the detection of optical signals associated with analytes in a fixed biological sample.

The invention discloses a high and cold pasturing area greenhouse gas automatic acquisition and analysis static box, the static box comprises a box cover and a base which are connected through a sealing mechanism and form an airtight space, and an in-situ multi-gas analysis module, a multi-parameter environment sensor, a control and edge calculation unit and a wireless transmission module are integrated in the box; according to the invention, the high-precision multi-gas in-situ analysis module, the distributed environmental factor sensing network and the edge calculation unit are highly integrated in the box body, so that the system can synchronously collect key environmental parameters such as gas concentration data and soil temperature and humidity at high frequency during each automatic closed measurement period; flux calculation and data standardization processing are completed at an equipment end in real time, and finally, a result is remotely transmitted through a wireless network, so that the requirements of manual on-site sampling, air bag storage and transportation and laboratory off-line analysis are eliminated.

This invention relates to an automated in-situ sampling device for high-temperature chambers, relating to the field of high-temperature reaction monitoring. The device includes a control system, a positioning rod, a sampling rod, and an isolation chamber. The isolation chamber is fixed outside the high-temperature chamber and circulates with an inert gas. The positioning rod and the sampling rod are fixedly connected and slidably connected within the isolation chamber. One end of the positioning rod extends out of the isolation chamber and is connected to a power assembly. The power assembly is electrically connected to the control system, enabling one end of the sampling rod to pass through the isolation chamber, enter the high-temperature chamber to collect a sample, and then retract into the isolation chamber. This invention offers the advantages of achieving safe, reliable, and repeatable in-situ sampling, thereby providing a real and accurate sample source for in-situ analysis and mechanism research of high-temperature reaction processes.

The invention provides a metamorphic rock boron enrichment mechanism comprehensive investigation system based on a micro-area in-situ technology. The system comprises a sample target preparation and characterization module, a combined micro-area in-situ analysis module, a data integration and processing module and a space-time correlation and evolution sequence reconstruction module which are connected in sequence. The method comprises the following steps: establishing a uniform space coordinate system, and sequentially calling an electronic probe, a laser ablation mass spectrum, an ion probe and other micro-area analysis instruments to carry out collaborative analysis on the same sample target to obtain data of mineral components, trace elements, boron isotopes and zircon U-Pb-Hf isotopes. The system carries out automatic fusion and mineral generation intelligent identification on multi-source data, couples a geochemical model and a machine learning algorithm, constructs a boron element geochemical behavior evolution sequence model taking absolute time as an axis, and realizes quantitative description of the whole process of source, migration and enrichment of boron in an open system. According to the method, the systematicness and the accuracy of the study on the boron enrichment mechanism of the metamorphic rock are remarkably improved.

The application relates to the technical field of mechanical testing devices, and particularly discloses a multi-scale in-situ monitoring device applied to material crack propagation and a testing method thereof. The device comprises a DCPD testing part, a DIC testing part and an electric control cabinet; the DCPD testing part comprises a fixed frame, a room temperature clamping device, a force loading system and a data acquisition system; and the DIC testing part comprises a DIC camera. Through the cooperation of the DCPD and the DIC, real-time monitoring of a macroscopic crack propagation rate and in-situ analysis of a microscopic crack tip stress and strain field distribution are realized, so that cross-scale material damage evolution information is obtained. The device has the advantages of computer full-digital control, high measurement precision, multi-dimensional synchronous data acquisition and the like, and is particularly suitable for high-precision, multi-scale material damage detection and failure mechanism research in an air environment.

The proposed solution addresses the identified problem by providing a method that involves the use of artificial intelligence (AI) in combination with a portable laser spectroscopy device, such as a quantum cascade laser, allowing in situ analysis.

The invention discloses a catalytic material in-situ adsorption / desorption analysis system and method based on nuclear magnetic resonance analysis characterization, and relates to the technical field of instrument preparation and in-situ analysis. Comprising a catalytic material sample batch processing device, a water-free and oxygen-free sample transfer device and an in-situ solid nuclear magnetic analysis device. According to the invention, a multi-channel parallel batch parallel processing mode is adopted, so that the sample processing and analysis efficiency is effectively improved, and accurate temperature control and vacuum degree control are realized.

The invention discloses a research device for a magnetic field enhanced reaction-separation process and a use method of the research device. Relates to the technical field and comprises a magnet and a reactor which are both arranged on a magnet movement supporting mechanism. The detection system is an in-situ analysis mechanism and comprises a mass spectrometer and an online infrared mechanism, and the mass spectrometer and the online infrared mechanism both correspond to the reactor; the temperature control system is connected with the in-situ analysis mechanism; the conveying system comprises a gas source and a liquid storage tank; a light source is arranged corresponding to the camera system; the control system comprises a reaction control mechanism, a superconducting magnet control mechanism and a display. The invention relates to a research device for a magnetic field enhanced reaction-separation process and a use method thereof, which are used for exploring the reaction and separation process, establishing a hydrodynamic model under the action of a magnetic field, realizing molecular design and screening, and researching the physical property, the structure, the reaction / transfer rule and the modeling of a complete ionic medium under the magnetic field.

This disclosure provides an in-situ analysis device and method for polymer samples containing impurities. The device includes a filter assembly, a sample vial, an injector, and an analyzer. The filter assembly is placed in the sample vial, allowing the dissolution and filtration of the polymer sample to be carried out simultaneously before analysis. This avoids impurities such as fillers and inorganic particles in the polymer sample from entering the chromatographic column and other components of the analyzer, which could significantly affect their performance. This improves data reliability and analytical efficiency, eliminates the need for additional solvents, is simple to operate, and is environmentally friendly and pollution-free.

The present disclosure relates in some aspects to methods for analyzing antigen receptor transcripts in a biological sample. In some aspects, nucleic acid molecules are generated from V(D)J transcripts in situ in the biological sample to enrich molecules comprising V(D)J joins. In some aspects, the presence, amount, and / or identity of a plurality of V(D)J transcripts are analyzed in situ. Also provided are oligonucleotides, sets of oligonucleotides, compositions, and kits for use in accordance with the methods.

The application discloses application of 1-chloro-4-hydrazinyl phthalazine as a reactive matrix in monosaccharide MALDI MSI in-situ analysis. The monosaccharide includes glucose, fructose, fucose and arabinose. The application develops 1-chloro-4-hydrazinyl phthalazine (CHP) as a reactive matrix, which is used for derivatization of monosaccharide in biological tissues and in-situ differentiation of monosaccharide isomers. Taking carrot as a model, monosaccharide on the carrot tissue is derivatized, and a MALDI-MSI experiment is carried out. It is worth noting that characteristic fragments generated by secondary mass spectrometry of the derivatization product can be used for further distinguishing aldoses and ketoses, thereby differentiating monosaccharide isomers and revealing different spatial distributions of monosaccharide isomers in organisms.

The invention provides a method for determining a saturated crystallization process of spodumene in pegmatite, and belongs to the crossing field of rare metal ore deposit science and mineral in-situ analysis. According to the method, after a sample is collected and prepared into a probe piece, a saturated crystallization potential microcell is locked through muscovite oriented lithofacies-composition characterization; dividing a spodumene core-mantle-edge structure by means of the color cold cathode luminescence image girdle characteristics, and adjusting beam spots according to the girdle width to carry out LA-ICP-MS in-situ analysis; and finally, establishing a muscovite Ta / Nb ratio-spodumene Fe / Mn ratio synchronous response model, and accurately judging the saturated crystallization process. The method breaks through the limitation of single mineral analysis, solves the problems of inaccurate and non-systematic judgment in the prior art, and provides reliable technical support for pegmatite lithium mineralization research.

The invention relates to the technical field of mineral analysis, in particular to a quantitative analysis method for the occurrence state of gold in an ore deposit. The quantitative analysis method for the occurrence state of the gold in the ore deposit comprises the steps that an ore sample is pretreated, and the total content of the gold in the ore sample is obtained. And carrying out gold hyperaccumulation treatment on the pretreated ore sample to obtain a hyperaccumulated ore sample. Respectively manufacturing resin targets for the pretreated ore sample and the hyperaccumulated ore sample, and analyzing each resin target by using TIMA. And carrying out microcell in-situ analysis on the sulfide resin target by using LA-ICP-MS. And carrying out quantitative analysis on the occurrence state of gold in the ore sample by combining data obtained by TIMA and LA-ICP-MS analysis. Compared with a traditional qualitative or semi-quantitative method, the method has higher resolving power and application universality, is suitable for research of different types of gold deposits, and provides reliable data support for follow-up dressing and smelting process optimization.

The present disclosure relates in some aspects to methods for analyzing a target nucleic acid in a biological sample. In some aspects, provided herein are methods and compositions for detecting a region of interest in a target nucleic acid.

The present invention, among other things, provides technologies for detecting and / or quantifying nucleic acids in cells, tissues, organs, or organisms. Pre-designed barcodes are associated with specific molecular targets through sequential hybridization experiments. A pseudo-color based barcoding scheme is described that overcomes the limitations in the previous generation of the technology. The current method can be applied to both in vitro and in situ analysis.

The invention relates to the technical field of geochemical analysis, in particular to a zircon zirconium isotope detection method, which comprises the following steps: co-loading a zircon sample to be detected and a standard sample with a coherent growth structure; a femtosecond laser system integrated with laser-induced breakdown spectroscopy is used for performing real-time component sensing and dynamically adjusting laser parameters so as to realize intelligent denudation, generated aerosol is ionized by a series quadrupole rod inductively coupled plasma mass spectrometer, and interference is eliminated through two-stage mass screening and chemical reaction in a reaction tank; and a multi-receiver array is adopted to synchronously detect signals, and finally, multi-source data are fused and input into a pre-trained machine learning model for intelligent correction, so that the problems that polyatomic ion interference is serious, the matrix effect is remarkable, and high spatial resolution and analysis precision are difficult to consider at the same time are effectively solved. And high-precision and high-accuracy micro-area in-situ analysis of the zircon zirconium isotope is realized.

The invention discloses a steady state method for in-situ analysis of excited state species in an organic light-emitting device, which comprises the following steps: selecting materials, and preparing an organic light-emitting diode device which comprises a hole injection layer, a hole transport layer, an electron blocking layer, a light-emitting layer, a hole blocking layer, an electron transport layer, an electron injection layer, a transparent cathode and an optical coupling output layer; carrying out electroluminescence imaging, micro-area photocurrent imaging and in-situ multispectral imaging tests on the organic light-emitting diode device by utilizing the built in-situ testing system to obtain in-situ physical property parameters of the organic light-emitting diode device; collecting in-situ physical property parameters and material basic parameters, constructing a data set, establishing a machine learning model, and training the machine learning model by using the data set; and predicting device material combination and process conditions by using the machine learning model, performing experimental verification according to a prediction result, performing training optimization on the machine learning model, and analyzing excited state species of the organic light emitting diode device by using the machine learning model.

This invention discloses a multi-purpose rock experimental sample and its preparation method. The method includes inserting a representative rock sample into a sample stake; injecting resin into the sample stake after insertion to form a post-injection sample; curing and cooling the post-injection sample and then removing it to obtain a cured large sample; and cutting, grinding, and polishing the cured large sample to obtain the multi-purpose rock experimental sample. This invention is designed for preparing rock samples such as shale, which are relatively soft and brittle. The preparation process overcomes the disadvantages of shale being easily fractured and expanded. The prepared rock sample is firmly consolidated, effectively protected, and reusable. It utilizes a mixture of fine-grained sedimentation and chemical sedimentation to support planar samples. Various optical microscopes are used in combination, along with electron microscopy, employing incident light from multiple light sources and electron beam excitation with multiple probe detection methods to complete multi-purpose in-situ analysis and determination.