Per unit — Unité réduite En physique et en ingénierie, une unité réduite ou per unit (abréviation pu) est une unité sans dimension pouvant mesurer n importe quelle grandeur physique, pourvu qu elle ait été définie avant son usage. Quelle que soit la… … Wikipédia en Français
charge density — noun The electric charge per unit volume of a field or body, or per unit area of a surface • • • Main Entry: ↑charge … Useful english dictionary
Charge conservation — In physics, charge conservation is the principle that electric charge can neither be created nor destroyed. The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always… … Wikipedia
charge density — noun The amount of electric charge per unit volume of space or unit area of a surface … Wiktionary
Unit record equipment — Before the advent of electronic computers, data processing was performed using electromechanical devices called unit record equipment, electric accounting machines (EAM) or tabulating machines. Unit record machines were as ubiquitous in industry… … Wikipedia
SI derived unit — The International System of Units (SI) specifies a set of seven base units from which all other units of measurement are formed, by products of the powers of base units. These other units are called SI derived units, for example, the SI derived… … Wikipedia
Orbital replacement unit — Orbital Replacement Units (ORUs) are key elements of the International Space Station that can be readily replaced when the unit either passes its design life or fails. Examples of ORUs are: pumps, storage tanks, controller boxes, antennas, and… … Wikipedia
Motor unit number estimation — (MUNE) is a technique that uses electromyography to estimate the number of motor units in a muscle. Principles A motor unit consists of one alpha motoneuron and all the muscle fibres it innervates. Muscles differ in the number of motor units that … Wikipedia
Benefits Charge — The addition of a per unit tax on sales of electricity, with the revenue generated used for or to encourage investments in energy efficiency measures and/or renewable energy projects … Energy terms
Mass-to-charge ratio — Charge to Mass ratio SI quantity dimension: M/(I⋅T) SI unit: kg/C other units: Th The mass to charge ratio ratio (m/Q) is a physical quantity that is widely used in the electrodynamics of c … Wikipedia
