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Total dissolved solids (TDS) is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular (colloidal sol) suspended form. TDS are often measured in parts per million (ppm). TDS in water can be measured using a digital meter.
Conductivity (electrolytic) Conductivity or specific conductance of an electrolyte solution is a measure of its ability to conduct electricity. The SI unit of conductivity is siemens per meter (S/m). Conductivity measurements are used routinely in many industrial and environmental applications as a fast, inexpensive and reliable way of ...
Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity is a key test of both water clarity and water quality. Fluids can contain suspended solid matter consisting of particles of many different sizes.
Postdoctoral researcher. A postdoctoral fellow, postdoctoral researcher, or simply postdoc, is a person professionally conducting research after the completion of their doctoral studies (typically a PhD). Postdocs most commonly, but not always, have a temporary academic appointment, sometimes in preparation for an academic faculty position.
The licentiate degree is a post-graduate, research degree, considered above the master's degree and below the research doctoral degree, conferred by authority of the Holy See by a pontifical university or ecclesiastical faculty upon completion of studies in one of the sacred sciences.
Science, technology, engineering, and mathematics (STEM) is an umbrella term used to group together the distinct but related technical disciplines of science, technology, engineering, and mathematics. The term is typically used in the context of education policy or curriculum choices in schools. It has implications for workforce development ...
This is a list of post-nominal letters used in Canada. The order in which they follow an individual's name is: Distinctions conferred directly by the Crown. University degrees. Memberships of societies and other distinctions. Normally no more than two are given, representing the highest award of each type. [1]
Basic life science branches. Biology – scientific study of life [2][3][4] Aerobiology – study of the movement and transportation of microorganisms [5] Agrostology – the study of grass and grasslike species. Anatomy – study of form and function, in plants, animals, and other organisms, or specifically in humans [6]