A method for quantitatively characterizing a dendrite segregation and dendrite spacing of a high-temperature alloy ingot is disclosed. The method includes preparation and surface treatment of the high-temperature alloy ingot, selection of calibration sample and determination of an element content, establishment of quantitative method for elements in micro-beam X-ray fluorescence spectrometer, quantitative distribution analysis of element components of the high-temperature alloy, quantitative characterization of characteristic element line distribution of high-temperature alloy, and analysis of a characteristic element line distribution map and statistics of a secondary dendrite spacing.

A method for quantitatively characterizing a dendrite segregation and dendrite spacing of a high-temperature alloy ingot is disclosed. The method includes preparation and surface treatment of the high-temperature alloy ingot, selection of calibration sample and determination of an element content, establishment of quantitative method for elements in micro-beam X-ray fluorescence spectrometer, quantitative distribution analysis of element components of the high-temperature alloy, quantitative characterization of characteristic element line distribution of high-temperature alloy, and analysis of a characteristic element line distribution map and statistics of a secondary dendrite spacing.

Coating compositions are described that include one or more rare metal components, such as rare alkali metal components, as well as diagnostics test elements that incorporate the same. Methods also are described for determining an amount of a dried coating composition in a coat based upon the rare metal components.

Coating compositions are described that include one or more rare metal components, such as rare alkali metal components, as well as diagnostics test elements that incorporate the same. Methods also are described for determining an amount of a dried coating composition in a coat based upon the rare metal components.

A quality inspection method for a chemical liquid used for manufacturing a semiconductor substrate includes: a step W of preparing a first container and washing at least a portion of a liquid contact portion by using a portion of the chemical liquid, a step A of performing concentration of a portion of the chemical liquid by using the washed first container so as to obtain c liquid, a step B of performing measurement of a content of a specific component in c liquid, and a step C of comparing the content of the specific component with a preset standard value. At least the step W and the step A are performed in a clean room having cleanliness equal to or higher than class 4 specified in ISO14644-1:2015, the concentration is performed in inert gas or under reduced pressure, and the measurement is performed by a predetermined measurement method.

A quality inspection method for a chemical liquid used for manufacturing a semiconductor substrate includes: a step W of preparing a first container and washing at least a portion of a liquid contact portion by using a portion of the chemical liquid, a step A of performing concentration of a portion of the chemical liquid by using the washed first container so as to obtain c liquid, a step B of performing measurement of a content of a specific component in c liquid, and a step C of comparing the content of the specific component with a preset standard value. At least the step W and the step A are performed in a clean room having cleanliness equal to or higher than class 4 specified in ISO14644-1:2015, the concentration is performed in inert gas or under reduced pressure, and the measurement is performed by a predetermined measurement method.

Described herein is a method for recycling aluminum alloy wheels. The method includes the steps of providing a feed of aluminum alloy wheels of a particular alloy; fragmenting a quantity of the aluminum alloy wheels into a plurality of fragments; subjecting the plurality of fragments to shot blasting to remove surface impurities from the plurality of fragments to produce a plurality of shot blasted pieces; separating the plurality of shot blasted pieces into a plurality of larger shot blasted pieces and a plurality of smaller shot blasted pieces; and, providing the plurality of larger shot blasted pieces for use in producing a recycled aluminum alloy, without providing the plurality of smaller shot blasted pieces for use in producing that recycled aluminum alloy.

A system and method for evaluating soil characteristics. The system and method includes providing one or more soil test kits to a user. The soil tests kits may include ion-exchange resins and may instruct the user to collect a soil sample from his/her growing area, to combine the soil sample with the ion-exchange resins, and to provide the combination to the system for analysis. Other test kits may not include ion-exchange resins and may instruct the user to provide a soil sample from his/her growing area to the system for analysis. The system evaluates the ion-exchange resins and/or the soil samples to identify nutrient levels, pH levels, and other characteristics of the soil. Using the evaluation results, the system provides feedback, recommendations and/or products to the user to improve the soil conditions and to ensure a successful crop, yield, quality, and nutrient density. The system and method also may include providing a second soil test kit to the user at a predetermined time after the first, to evaluate a second soil sample, and to compare the second evaluation results with the first to assess the improvement of the soil conditions.

A system and method for evaluating soil characteristics. The system and method includes providing one or more soil test kits to a user. The soil tests kits may include ion-exchange resins and may instruct the user to collect a soil sample from his/her growing area, to combine the soil sample with the ion-exchange resins, and to provide the combination to the system for analysis. Other test kits may not include ion-exchange resins and may instruct the user to provide a soil sample from his/her growing area to the system for analysis. The system evaluates the ion-exchange resins and/or the soil samples to identify nutrient levels, pH levels, and other characteristics of the soil. Using the evaluation results, the system provides feedback, recommendations and/or products to the user to improve the soil conditions and to ensure a successful crop, yield, quality, and nutrient density. The system and method also may include providing a second soil test kit to the user at a predetermined time after the first, to evaluate a second soil sample, and to compare the second evaluation results with the first to assess the improvement of the soil conditions.

A method for detecting mercury (Hg.sup.2+) ions in an aqueous solution is described. The method includes contacting the aqueous solution with a chemosensor to form a mixture; and monitoring a change in a fluorescence emission profile of the chemosensor in the mixture to determine the presence or absence of Hg.sup.2+ ions in the aqueous solution. The chemosensor includes pyrene silica nanoparticles where at least one pyrene is bonded to a surface of a silica nanoparticle through an amide bond with a formula of, pyrene-C(═O)NHR-silica nanoparticle, and where R is an alkyl chain.