8 results about "Laboratory assay" patented technology

The invention discloses a highway area vegetation carbon sink plaque calculation method. The method comprises the following steps: step 1, acquiring multi-source remote sensing data; 2, data preprocessing; step 3, dividing vegetation types; step 4, vegetation feature extraction; 5, constructing a biomass estimation model; step 6, laboratory determination; step 7, spectral analysis; 8, calculating carbon reserves; step 9, carbon sink plaque identification; and step 10, carbon sink plaque feature analysis. The invention provides the carbon sink measuring and calculating method specially aiming at the highway area vegetation, the carbon sink quantity of the highway area vegetation is quickly obtained by comprehensively applying multi-source data and various technical means, and the carbon sink plaque characteristics of the highway area vegetation are deeply analyzed, so that a scientific and comprehensive basis is provided for ecological protection and carbon sink management.

The invention relates to the field of technical analysis and to determining for construction purposes the optimum moisture content and maximum density of natural and man-made soils under static compaction. The essence of the invention consists in compacting a first soil specimen after first determining the initial moisture content thereof and, if necessary, adjusting same by adding water in accordance with recommended values for the given type of soil. A compaction mold cylinder and a lower liner are then placed on 18-20 mm high support stands on a level surface, a weighed amount of the soil under examination is placed in the compaction mold cylinder, the cylinder is positioned on a base plate of a compactor, a top plate of the compactor is brought into contact with the upper end of the cylinder and the compactor is set to a 20 mPA loading mode which is maintained for 5-10 minutes. Loading is ceased, the compaction mold is removed from the compactor, the compacted specimen is extruded and the volume thereof is calculated, the specimen is broken up, a representative sample is taken and weighed on electronic scales with an accuracy of up to 0.01 before being dried and reweighed. On the basis of the data obtained, the damp soil density and the dry soil density are calculated according to given formulae, and the data obtained are entered into a table and noted on a graph. A second soil specimen is compacted, the moisture content of which is increased by 1%, the specimen is placed in the compaction mold, placed under a 20 mPA load in the compactor and held for 5-10 minutes, after which loading is ceased, the compaction mold is removed from the compactor, the compacted specimen is extruded, the volume thereof is calculated, the specimen is broken up, a representative sample is taken and weighed on electronic scales with an accuracy of up to 0.01 before being dried and reweighed, the moisture content of the soil and the dry soil density are calculated and the d

The application provides a shale formation lithology profile rapid construction method based on a handheld element analyzer, and relates to the field of oil and gas exploration, and the method comprises the following steps: using the handheld element analyzer, obtaining element composition data of core samples of each measuring point to obtain a scanning result; using an X-ray diffractometer to analyze whole-rock mineral composition of preset low-proportion core samples to obtain an analysis result; constructing a data set and performing pretreatment through the scanning result and the analysis result; constructing a back propagation neural network model based on a sparrow search algorithm and training the model through the data set to obtain an SSA-BP model; obtaining element composition data of a target well; predicting the element composition data of the target well by using the SSA-BP model to obtain mineral composition data of the target well, and establishing a lithology profile. The technical scheme of the application greatly saves the time cost and experimental resource consumption required for traditional laboratory determination of mineral composition.

The utility model relates to a device for measuring the natural repose angle of a bulk solid in a laboratory. The device comprises a supporting structure, a lifting mechanism, a measuring cylinder and a measuring plate, the supporting structure comprises a base, a vertical frame and a top cover, an annular scale is arranged on the base, the vertical frame is fixedly connected with the base, and the vertical frame is provided with a sliding rail and a height scale; the lifting mechanism comprises a cylinder lifting frame, a pulley block, a top pulley, a lifting soft steel wire and a lifter, the lifter is fixed to the back face of the vertical frame and connected with the lifting soft steel wire, and the other end of the lifting soft steel wire is connected with the cylinder lifting frame through the top pulley; the cylinder lifting frame is connected with the measuring cylinder, and the measuring cylinder is slidably connected with the sliding rail through a pulley block. According to the utility model, the repose angle can be simply and conveniently measured. The measuring cylinder is used for containing bulk materials and is driven by the gear motor to ascend and descend, and ore rock bulk materials in a natural accumulation state are obtained. And measuring the diameter and height of the bottom of the stockpile, and calculating to obtain the repose angle.

The invention relates to the field of technical analysis and to determining for construction purposes the optimum moisture content and maximum density of natural and man-made soils under static compaction. The essence of the invention consists in compacting a first soil specimen after first determining the initial moisture content thereof and, if necessary, adjusting same by adding water in accordance with recommended values for the given type of soil. A compaction mold cylinder and a lower liner are then placed on 18-20 mm high support stands on a level surface, a weighed amount of the soil under examination is placed in the compaction mold cylinder, the cylinder is positioned on a base plate of a compactor, a top plate of the compactor is brought into contact with the upper end of the cylinder and the compactor is set to a 20 mPA loading mode which is maintained for 5-10 minutes. Loading is ceased, the compaction mold is removed from the compactor, the compacted specimen is extruded and the volume thereof is calculated, the specimen is broken up, a representative sample is taken and weighed on electronic scales with an accuracy of up to 0.01 before being dried and reweighed. On the basis of the data obtained, the damp soil density and the dry soil density are calculated according to given formulae, and the data obtained are entered into a table and noted on a graph. A second soil specimen is compacted, the moisture content of which is increased by 1%, the specimen is placed in the compaction mold, placed under a 20 mPA load in the compactor and held for 5-10 minutes, after which loading is ceased, the compaction mold is removed from the compactor, the compacted specimen is extruded, the volume thereof is calculated, the specimen is broken up, a representative sample is taken and weighed on electronic scales with an accuracy of up to 0.01 before being dried and reweighed, the moisture content of the soil and the dry soil density are calculated and the d

The present invention includes a method of macrophage phenotype profiling for the assessment, determination, and stratification of risk of development of fibrosis and / or cirrhosis within the liver, and treatment thereof, comprising the steps of: (a) obtaining a liver biopsy sample from a subject; (b) using fluorescently labeled antibodies to analyze the sample, by laboratory assay, for marker identification and expression comparison of one or more macrophage profiling markers relative to the level of expression of a macrophage profiling marker in at least one control or standard sample; and (c) using spectral analysis to correlate the fluorescent signal generated by the macrophage profiling marker / antibody complex to the risk of developing fibrosis and / or cirrhosis, and treating with anti-viral agents or changes in diet, weight loss, or reduction of fat consumption.

The invention provides methods and artificial-intelligence (AI) systems that predict disease risk from samples. In particular, AI systems predict diseases risk from samples such as whole slide images (WSIs). When those AI-predicted risks do not match risk scores calculated in laboratory assays, methods of the invention give the AI system further, additional training on select samples. In particular, the samples for additional training are selected for their representation of biological processes implicated in discordance between AI-predicted risk scores and laboratory calculated risk scores. The additional training from the select sample provides a correction model ensuring the AI-predicted disease risk is highly accurate and precise. AI systems of the invention and classify breast cancer risk from WSIs of stained breast tissue with sensitivity and specificity rivaling prior microarray assays.

The application discloses a laboratory test auxiliary operation robot, which comprises a mechanical arm, an auxiliary claw electrically connected with the mechanical arm, a suction cup, a fixing frame and a clamping claw for clamping articles, a control motor is arranged on the inner wall of the auxiliary claw, the laboratory test auxiliary operation robot further comprises a quick release device for quickly replacing the clamping claw and a holding device for enabling the clamping claw to be kept stable during installation, during the installation of the clamping claw to the fixing frame, the limiting key two always keeps the sliding rod limited, so that the buffer plate cannot move during installation, which avoids the shaking interference of the floating component during the docking process, ensures that the docking positioning of the sliding block and the fixing frame is accurate and smooth, when the clamping claw is installed in place, the movement of the limiting piece synchronously triggers the pusher to push away the limiting key two, and the constraint on the sliding rod is automatically released, at this time, the buffer plate enters a floating state, and can provide elastic compensation when clamping articles.