critical density


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critical density

n
(Astronomy) the density of matter that would be required to halt the expansion of the universe

critical density

The amount of matter and energy in the universe which if exceeded will delay and even reverse the universe’s expansion.
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References in periodicals archive ?
Quorum sensing allows bacteria to change their behaviour after reaching a critical density.
Finally, we will demonstrate that there are graph classes such that there a exists a critical density co where the category to which a random graph with cn edges belongs to is different for c > [c.
Although many of the essays in this collection rehearse ideas or theoretical assumptions that we are familiar with from postcolonial and British cultural studies, by recasting these ideas and assumptions via new or different texts and contexts they expand the persuasive force and critical density of the scholarship to which they are themselves indebted.
Once they reach a critical density, they start form-sensing, and they rise up above the surface and they start forming all these complex structures.
He describes the tools necessary to discuss such orphan data as gauge coupling unification, small neutrino masses, relatively light Higgs, and a universe with a density close to the critical density.
When the material piling onto the surface of the white dwarf reaches a critical density, it sparks a thermonuclear explosion.
Ross continued, "With the addition of ITI and Redrock Communications, we believe DynTek has established critical density in Southern California and, as a combined company, we should achieve pro forma revenues in excess of $100 million nationwide in calendar 2005.
The progression of interior spaces is organized around a major spine of common area facilities, independent of the service functions, yet the simple, traditional, double-loaded corridor allows for critical density and variety in unit sizes.
RB: Well, my feeling was that expressionist figuration had developed enough of a critical density by 1981 and that the only way I would be able to function was in an adversarial way.
The previous lattice-based traffic models produce sudden phase transition from free flow to complete jamming of moving objects at a critical density.
Once the peptide reaches a critical density in stationery growth ph ase, it is sensed by VncS, which acts as a phosphatase to dephosphorylate the response regulator, VncR.
The key to the area is its critical density of high profile fashion designers, coupled with its tourist draw.

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