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Shadowgraph is an optical method that reveals non-uniformities in transparent media like air, water, or glass. It is related to, but simpler than, the schlieren and schlieren photography methods that perform a similar function. Shadowgraph is a type of flow visualisation.
A list of chemical analysis methods with acronyms. A. Atomic absorption spectroscopy (AAS) Atomic emission spectroscopy (AES) Atomic fluorescence spectroscopy (AFS) ...
Classical qualitative inorganic analysis is a method of analytical chemistry which seeks to find the elemental composition of inorganic compounds.It is mainly focused on detecting ions in an aqueous solution, therefore materials in other forms may need to be brought to this state before using standard methods.
Shadowgraph or shadowgram, an optical method that reveals non-uniformities in transparent media Optical comparator , a device that creates silhouettes of manufactured parts for inspection Shadowgraph, an electromagnetic and optical device once used as an alternative to magic eye tube
The Griess test tests for organic nitrite compounds; The 2,4-dinitrophenylhydrazine tests for carbonyl compounds; The iodoform reaction tests for the presence of methyl ketones, or compounds which can be oxidized to methyl ketones; The Schiff test detects aldehydes; Tollens' reagent tests for aldehydes (known as the silver mirror test)
These are visualized by optical methods known as the shadowgraph, schlieren photography, and interferometry. More directly, dyes can be added to (usually liquid) flows to measure concentrations; typically employing the light attenuation or laser-induced fluorescence techniques. In scientific visualization flows are visualized with two main methods:
Chemical similarity (or molecular similarity) refers to the similarity of chemical elements, molecules or chemical compounds with respect to either structural or functional qualities, i.e. the effect that the chemical compound has on reaction partners in inorganic or biological settings.
A typical application in gas dynamics is the study of shock waves in ballistics and supersonic or hypersonic vehicles. Flows caused by heating, physical absorption [10] or chemical reactions can be visualised. Thus schlieren photography can be used in many engineering problems such as heat transfer, leak detection, study of boundary layer ...