G01N33/0091

POWDER DUSTINESS EVALUATION METHOD AND POWDER DUSTINESS EVALUATION DEVICE
20190025206 · 2019-01-24 ·

The present invention intends to provide a method by which the scattering property of a powder can be more clearly evaluated. There is provided a method for evaluating a scattering property of a powder, the method including dropping a powder to be evaluated onto a liquid placed in a box, thereby scattering the powder as dust in the box, and measuring a dust concentration in air in the box with a dust meter. There is also provided an apparatus for evaluating a scattering property of a powder, the apparatus including a box in which a liquid is to be placed, and a dust meter that measures a dust concentration in air in the box when the powder to be evaluated drops onto the liquid placed in the box and scatters as dust.

STRUCTURAL-PROFILING OF ANALYTES BY NANOPORE TRAPPING
20240272137 · 2024-08-15 ·

A method of characterizing an analyte or the interaction between the analyte and an agent in a nanopore system, wherein the nanopore system comprises a protein nanopore disposed in a membrane that separates a first conductive liquid medium from a second conductive liquid medium, wherein the protein nanopore is MspA, MspA homolog or variant thereof, wherein the analyte has an conformation and the analyte with the conformation can be accommodated in the vestibule of the MspA, the MspA homolog or the variant thereof but cannot translocate through the MspA, the MspA homolog or the variant thereof, the method comprising: i) applying an electrical potential difference between the first conductive liquid medium and the second conductive liquid medium to drive the analyte into the nanopore, and optionally contacting the agent with the analyte; ii) measuring an ionic current through the protein nanopore to provide a tested current pattern that contains at least ionic current measured during the analyte is in the vestibule of the MspA, the MspA homolog or the variant thereof; iii) associating the tested current pattern with at least one characteristic of the analyte or the interaction between the analyte and an agent.

DEVICE FOR THE AUTOMATED ANALYSIS OF SOLIDS OR FLUIDS
20180313859 · 2018-11-01 · ·

The invention relates to a device (1) for the automated analysis of solids or fluids. Said device comprises a first station (5) having a metering unit (51) for the filling of at least one sample chamber (2) with a specified sample quantity, a second station (6) having at least one measurement device (61) for an analysis of the sample situated in a sample chamber (2) and a third station (7) having an emptying device and cleaning device (71, 72) for the at least one sample chamber (2). Moreover, there is provided a transport device (3) for a revolving transport of the at least one sample chamber (2) from one station to the next until the first station (5) is reached again. According to the invention, the measurement device (61) of the second station (6) is a spherical measurement system, through the interior of which it is possible to guide the at least one sample chamber (2).

METHOD FOR CALCULATING DIELECTRIC CONSTANT OF PARTICLE-DISPERSED COMPOSITE MATERIALS AND METHOD FOR EVALUATING DISPERSIBILITY

A method for calculating the dielectric constant of particle-dispersed composite materials that enables an easy evaluation of dispersibility. The composite material is assumed as a cell combination 10 in which unit cells 1 having a length a are combined together in an x-axis, a y-axis, and a z-axis direction and which has a length 1 in the x-axis direction, a length m in the y-axis direction, and a length n in the z-axis direction, the cell combination 10 is created in which a particle element or a medium element is assigned to each of the unit cells 1 Layers have a thickness d in the z-axis direction are combined and layered in the z-axis direction and assigning a capacitance C.sub.Layer,h of each of the layers represented by Formula 1 below to Formula 2 to determine a relative dielectric constant ?.sub.Total.

[00001] C Layer , h = { .Math. j = 1 .Math. m / a .Math. .Math. .Math. i = 1 .Math. l / a .Math. .Math. ( .Math. k = 1 .Math. d / a .Math. .Math. 1 .Math. ijk .Math. .Math. 0 .Math. a ) - 1 } - 1 Formula .Math. .Math. 1 ?0: dielectric constant of vacuum (F/m)

[00002] .Math. Total = 1 .Math. 0 .Math. n lm .Math. ( .Math. h = 1 .Math.
DIELECTRIC CONSTANT MEASUREMENT METHOD FOR POWDER IN POWDER-DISPERSED COMPOSITE MATERIAL

A method for measuring the relative dielectric constant of powder in a powder-dispersed composite material. A composite material is assumed as a cell combination in which unit cells having the same length a in each of an x-axis direction, a y-axis direction, and a z-axis direction are combined together and which has a length l in the x-axis direction, a length m in the y-axis direction, and a length n in the z-axis direction, each of the unit cells of the cell combination is considered to be constituted by a single powder element or a single medium element, the cell combination is created in which the powder element or the medium element is assigned to each of the unit cells in consideration of the number-based median particle diameter D.sub.50, the maximum diameter D.sub.max, the minimum diameter D.sub.min, and the geometric standard deviation ?.sub.g.

POWDER SAMPLING VESSEL AND SAMPLING METHOD
20180259427 · 2018-09-13 ·

Provided is a sampling vessel which can prevent the operator from being exposed to powder. A metal sampling vessel (1) for sampling powder comprises a cylindrical body (2) having a closed first end (2a), an opposite second end (2b) including an opening and a cavity (3), and a connector (6a, 6b) for connecting the cylindrical body (2) to a hanging line. The cylindrical body (2) satisfies a relationship M1>M2, wherein M1 represents a mass between the first end (2a) and a bottom (3c) of the cavity and M2 represents a mass between the opening (5) at the second end and the bottom (3c) of the cavity.

Method of analyzing sintered density of uranium oxide (UOx) using spectrophotometer

Disclosed is a method of predicting, calculating, or analyzing the sintered density of uranium oxide (UO.sub.x) before uranium oxide is added in the pelletizing process during a process of manufacturing nuclear fuel, the method including measuring the chromaticity of ammonium diuranate using a spectrophotometer. The present invention provides a simple and highly reliable method of predicting the sintered density of uranium oxide (UO.sub.x), which overcomes the problem with a conventional technology where the sintered density of uranium oxide (UO.sub.x) can be analyzed only in a pellet state and a subsequent treatment process needs to be performed according to the analysis result.

RESISTANCE-MEASUREMENT APPARATUS AND METHOD
20180080892 · 2018-03-22 ·

Disclosed is a resistance-measurement apparatus, including: multiple measurement chambers for holding powdery materials; multiple first electrodes that press the respective powder materials in the measurement chambers; at least one second electrode that faces the first electrodes and that presses the powdery materials; and a measuring device that measures a resistance between the first electrodes and the at least one second electrode. Further disclosed is a resistance-measurement method, including: (i) placing at least one powdery material between a number N of first electrodes and at least one second electrode, and pressing the at least one powdery material therebetween; (ii) measuring an impedance between the number N of the first electrodes and the at least one second electrode; and (iii) measuring an impedance between a number M of the first electrodes and the at least one second electrode, wherein the number N is different from the number M.

ADDITIVE MANUFACTURING MATERIAL ANALYSIS SYSTEM AND RELATED METHOD

Various aspects include systems and methods for analyzing materials in additive manufacturing processes. In some cases, a system includes: an additive manufacturing (AM) printer for printing an AM object, the AM printer including a raw material chamber and a build chamber; a control system coupled with the AM printer configured to control the printing of the AM object; and a material analysis system coupled with the control system and the AM printer, the material analysis system configured to analyze a raw material obtained directly from at least one of the raw material chamber or the build chamber for a defect prior to, or contemporaneously with, additively manufacturing the AM component.

METHOD OF ANALYZING SINTERED DENSITY OF URANIUM OXIDE (UOX) USING SPECTROPHOTOMETER

Disclosed is a method of predicting, calculating, or analyzing the sintered density of uranium oxide (UO.sub.x) before uranium oxide is added in the pelletizing process during a process of manufacturing nuclear fuel, the method including measuring the chromaticity of ammonium diuranate using a spectrophotometer. The present invention provides a simple and highly reliable method of predicting the sintered density of uranium oxide (UO.sub.x), which overcomes the problem with a conventional technology where the sintered density of uranium oxide (UO.sub.x) can be analyzed only in a pellet state and a subsequent treatment process needs to be performed according to the analysis result.