energy density


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Wikipedia.

energy density

[′en·ər·jē ‚den·səd·ē]
(physics)
The energy per unit volume of a medium; in the case of an electric or magnetic field, the energy needed to set up the field is thought of as residing in the field.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Mentioned in ?
References in periodicals archive ?
Caption: Figure 6: Relationships of the rock energy density and the strain under different confining pressure conditions.
Energy Evolution Characteristics and Distribution Laws of Rock Materials under Triaxial Cyclic Loading and Unloading Compression
The strain energy density of a homogeneous, isotropic, and elastic material is generally represented in terms of three independent stretch invariants [23].
Constitutive modeling of isotropic hyperelastic materials using proposed phenomenological models in terms of strain invariants
Few attempts have been made to investigate whether energy density varies with fork length or geography.
Arctic cod (Boreogadus saida) as prey: fish length-energetics relationships in the Beaufort Sea and Hudson Bay
Koratkar's team has demonstrated their experimental anode material could charge or discharge 10 times faster than conventional anodes without significant loss in energy density.
Deliberate imperfections make faster anodes
"Since 2007, when we flew the prototype G2, the energy density went from 163 (Wh/kg) to 185 for the same power required," he said.
Your Li-ion future: promise, but risk too: lithium-ion batteries are coming to aviation, both as main starting batteries and for electric airplanes. But they'll require careful steps to reduce the fire hazard
We hypothesized that changes of dietary energy density pre-partum can affect the energy metabolism during the transition period, thereafter influencing the response of an antioxidant to different energy density diets.
Effect of dietary antioxidant and energy density on performance and anti-oxidative status of transition cows
Researchers noted that reducing or eliminating the type and amount of added fat (butter or sauce) to the vegetables also was a factor in the vegetables' energy density.
Trouble with weight management? Portion size might do the trick: increasing intake of low-density vegetables while reducing energy-dense grains and meats can be an effective weight management tool
Energy density may be a critical requirement, but electrochemical batteries are not a universal energy storage solution.
Carbon super-springs: carbon nanotubes have the potential, to store a thousand times more mechanical energy, pound for pound, than steer springs. Lab results point to a day when nanotube-powered bikes and fawn equipment could become practical
Regarding performance, the objective is to progressively increase the voltage of batteries and hence their energy density. A few years ago, the average capacity of high performance batteries was 3.7V.
Solvay - Contributing to a safer and more energy-efficient automotive industry

Encyclopedia browser ?
Full browser ?