useful efficiency
11efficiency — noun (plural efficiencies) 1》 the state or quality of being efficient. 2》 technical the ratio of the useful work performed by a machine or in a process to the total energy expended or heat taken in …
12Energy conversion efficiency — Output energy is always lower than input energy …
13Algorithmic efficiency — In computer science, efficiency is used to describe properties of an algorithm relating to how much of various types of resources it consumes. Algorithmic efficiency can be thought of as analogous to engineering productivity for a repeating or… …
14Spectral efficiency — Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is… …
15Electrical efficiency — The efficiency of an entity (a device, component, or system) in electronics and electrical engineering is defined as useful power output divided by the total electrical power consumed (a fractional expression), typically denoted by the Greek… …
16Engine efficiency — of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful work. There are two classifications of thermal engines (1) Internal combustion (gasoline, diesel and gas… …
17Time of Useful Consciousness — (TUC) is defined as the amount of time an individual is able to perform flying duties efficiently in an environment of inadequate oxygen supply.cite book |title=Fundamentals Of Aerospace Medicine: Translating Research Into Clinical Applications,… …
18Fuel efficiency in transportation — This page describes fuel efficiency in means of transportation. For the environmental impact assessment of a given product or service throughout its lifespan, see life cycle assessment. Caveats Comparing Fuel efficiency in transportation is a bit …
19Propulsive efficiency — In aircraft and rocket design, overall propulsive efficiency eta is the efficiency, in percent, with which the energy contained in a vehicle s propellant is converted into useful energy, to replace losses due to air drag, or gravity, or to… …
20Water efficiency — can be defined as *1) the accomplishment of a function, task, process, or result with the minimal amount of water feasible; *2) an indicator of the relationship between the amount of water required for a particular purpose and the amount of water …
