5 results about "Laboratory assay" patented technology

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 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 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.