Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Inflationary energy

It is constructive to examine what this science consists of. As before, it starts with the assumption of a hot big bang, now interpreted to produce, not only space and time, but also all of the matter (as primordial molecular hydrogen) and energy observed in the universe today, as well as an excessive amount of non-baryonic cold dark matter and inflationary energy . [Pg.297]

Not to blow the new creation out of existence it is necessary to assume that after this brief period, activity of inflation energy had to be arrested, so as not to interfere with the subsequent evolution of the universe. Quantum mechanics is invoked to explain the conversion of inflationary energy into radiation, by a chance process, likened to radioactive decay, and which creates exactly the required random fluctuations to seed the growth of stars and galaxies within the dark-matter plasma. ... [Pg.298]

The price of lithium metal decreased drastically between 1925 ( 143/kg) and 1965 ( 16.50/kg), but because of increased energy and chemicals costs, and other inflationary pressures, the price has actually increased. Prices for lithium ingots ( /kg) were 72.05 in 1993. [Pg.224]

As we have seen during the course on inflation, a scalar field can behave as a cosmological constant when its kinetic term becomes negligible in front of its potential term. However, the features of the scalar field we are interested in differ significantly from an inflationary scalar field in the former case, we want a field that is negligible at early times and which dominates afterwards, whereas in the latter case, it is the contrary. Historically, the first scalar field dark energy model was aimed to address the possibility to have some components with a constant equation of state parameter w other than 0 (matter), 1/3 (radiation), —1/3 (curvature) and —1 (cosmological constant) (Ratra Peebles 1988). [Pg.141]

Valuation of Recycled Heat Energy The rising cost of energy is having an inflationary effect on manufacturing costs. One obvious way to reduce energy costs is to recycle heat energy whenever possible [S. A. K. El-Meniawy, F. A. Watson, and F. A. Holland, Indian Chem. Eng., 22 (July-September 1980)]. [Pg.684]

A.Vilenkin. Unambiguous probabilities in an eternally inflating universe. Physical Review Letters, 81, 5501 (1998) A. Linde. Quantum creation of an open inflationary universe. Physical Review, D58, 083514 (1998) J.Garriga, A. Linde and A.Vilenkin. Dark energy equation of state and anthropic selection. Physical Review, D69, 063521 (2004). [Pg.148]

The inflationary period in the evolution of the Universe ended at about 10 s after the Big Bang. At this moment, the constant ordered potential energy density driving the inflation decayed into the particles observed today. Some of them may have belonged to a more exotic class, which can contribute to the violation of the matter-antimatter symmetry if they exhibit sufficiently long lifetimes (see Sect. 12.2.2). The rate of expansion of the horizon in the subsequent radiation- and matter-dominated eras was always faster than the global expansion of the Universe (see O Fig, 12,2). Radiation-dominated means... [Pg.618]

Concluding, it becomes a more and more established fact that the chemical elements formed from baryonic matter contribute less than 5% to the total energy density of the present Universe. In view of the complete symmetry of laws governing matter and antimatter in our present-day Universe it is actually a rather nontrivial fact that baryonic matter did not completely annihilate into radiation in the hot Universe directly after the inflationary epoch and also that the original energy density was transformed into a high-temperature gas of ordinary elementary particles. [Pg.625]

Unfortunately, such a universe that inflated sufficiently never made a smooth transition to a radiation-dominated, early Friedmann cosmology. In the new inflationary models (1982), the vacuum energy density dominates while the relevant region of the universe inflates and... [Pg.53]

Although water-repellent finishing is a mature technology, research is continuing to improve the repellents and application processes and to ease the inflationary pressure on their cost. Low add-on application, to reduce the energy needed to dry the fabric and minimize migration of the dispersed repellent, is one of the recent developments on a commercial scale. [Pg.551]


See other pages where Inflationary energy is mentioned: [Pg.298]    [Pg.298]    [Pg.669]    [Pg.120]    [Pg.255]    [Pg.207]    [Pg.210]    [Pg.55]    [Pg.111]    [Pg.149]    [Pg.230]    [Pg.237]    [Pg.238]    [Pg.243]    [Pg.73]    [Pg.77]    [Pg.133]    [Pg.298]    [Pg.37]    [Pg.400]    [Pg.627]    [Pg.1]    [Pg.553]    [Pg.2459]    [Pg.32]    [Pg.76]    [Pg.53]    [Pg.53]    [Pg.54]    [Pg.108]    [Pg.108]   
See also in sourсe #XX -- [ Pg.297 , Pg.298 ]




SEARCH



© 2024 chempedia.info