Regenerator

Definitions

  • Webster's Revised Unabridged Dictionary
    • Regenerator (Mech) A device used in connection with hot-air engines, gas-burning furnaces, etc., in which the incoming air or gas is heated by being brought into contact with masses of iron, brick, etc., which have been previously heated by the outgoing, or escaping, hot air or gas.
    • Regenerator One who, or that which, regenerates.
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Century Dictionary and Cyclopedia
  • Interesting fact: In humans, the epidermal layer of skin, which consists of many layers of skin regenerates every 27 days
    • n regenerator Ono who regenerates.
    • n regenerator In metallurgy, a chamber filled with a checker-work of fire-bricks; that part of a regenerative furnace in which the waste heat of the gases escaping from the hearth is, by reversal of the draft at suitable intervals, alternately stored up and given out to the gas and air entering the furnace. The idea of employing what is now generally called the “regenerative system” of heating was first conceived by Robert Stirling, in 1816, but his arrangement for carrying it out was not a practical one. The present form of the furnace, and in general the successful application of the principle, constituting a highly important improvement in the consumption of fuel, are due to the brothers Siemens. The regenerative system has already been extensively applied in various metallurgical and manufacturing processes, and is likely to receive still further development. According to the Siemens regenerative method, there must be at least one pair of regenerative chambers, in order that the heat may be in process of being stored up in one while being utilized in the other. In the Siemens regenerative reheating- or mill-furnace there are two pairs of chambers, each pair consisting of one larger and one smaller chamber, through one of which the air passes, and through the other the gas on its way to the furnace. The so-called “Ponsard recuperator” is a form of regenerator in which, by an ingenious arrangement of solid and hollow fire-bricks, the current is made continuous in one direction, instead of requiring reversal as in the Siemens regenerative furnace. This form of furnace has been employed for reheating in rolling-mills.
    • n regenerator A lamp which generates formaldehyde by the oxidation of methyl alcohol.
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Chambers's Twentieth Century Dictionary
    • n Regenerator a chamber filled with a checker-work of fire-bricks, in which the waste heat is, by reversal of the draught, alternately stored up and given out to the gas and air entering the furnace
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Quotations

  • Jean De La Bruyere
    Jean%20De%20La%20Bruyere
    “The regeneration of society is the regeneration of society by individual education.”
  • Edward G. Bulwer-Lytton
    Edward%20G.%20Bulwer-Lytton
    “The prudent person may direct a state, but it is the enthusiast who regenerates or ruins it.”

Etymology

Chambers's Twentieth Century Dictionary
L. regenerāre, -ātum, to bring forth again—re-, again, generāre, to generate.

Usage

In literature:

Is a great regeneration coming?
"Lady John Russell"
That he is led into good by regeneration from the Lord.
"The Delights of Wisdom Pertaining to Conjugial Love" by Emanuel Swedenborg
He had lived again the momentous regeneration.
"The Sky Line of Spruce" by Edison Marshall
Prepare for the second and perfect regeneration of man!
"Atlantic Monthly, Volume 6, No. 38, December, 1860" by Various
Scythrop's schemes for regenerating the world and detecting his seven golden candlesticks went on very slowly.
"The World's Greatest Books, Vol VII" by Various
But he had no panacea of his own to prescribe; no cut-and-dried plan for the regeneration of Ireland.
"Mr. Punch's History of the Great War" by Punch
She was not quite assured of her own husband's regeneration.
"John Caldigate" by Anthony Trollope
Regenerator burners for lighting are coming into use; and, where large lights are required for long periods, no doubt they are economical.
"Scientific American Supplement, No. 481, March 21, 1885" by Various
The steam becomes superheated in traversing the regenerators, B', and in this state enters the bottom of the generator through the flue, E'.
"Scientific American Supplement, No. 514, November 7, 1885" by Various
Do thou, for serving the regenerate ones endeavour to attain success in penances.
"Mahabharata of Krishna-Dwaipayana Vyasa Bk. 3 Pt. 1" by Krishna-Dwaipayana Vyasa
The full fruition or autopsy, the reception of light, was the lesson of regeneration or resurrection.
"The Symbolism of Freemasonry" by Albert G. Mackey
This last terrible experience has been the keystone of my regeneration.
"Yolanda: Maid of Burgundy" by Charles Major
And the regenerate ones of that place will be virtuous and steady in observing their respective duties.
"The Mahabharata of Krishna-Dwaipayana Vyasa Bk. 4" by Kisari Mohan Ganguli
The issue was not death, but a sort of physical regeneration.
"The World's Greatest Books, Vol IX." by Edited by Arthur Mee and J.A. Hammerton
She is full of plans for the regeneration of the village.
"More Bywords" by Charlotte M. Yonge
Regeneration or reform is not the work of a year or a generation.
"American Missionary, Vol. XLII., May, 1888., No. 5" by Various
Wherever they work there they expect results, not only in the saving of individual souls, but in regenerating whole races of men.
"American Missionary, Vol. XLII., June, 1888., No. 6" by Various
Society cannot be regenerated all at once.
"The Book of Isaiah, Volume I (of 2)" by George Adam Smith
The new birth, according to Wesley, includes pardon, justification, regeneration, and adoption.
"The Young People's Wesley" by W. McDonald
In seven different ways has the world been on the point of being regenerated since the Spanish-American War.
"Post-Impressions" by Simeon Strunsky
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In poetry:

Predestinated to be sons,
Born by degrees, but chose at once,
A new regenerated race,
To praise the glory of his grace.
"Hymn 54" by Isaac Watts
Who knows but in the great regeneration,
When He shall make the whole world new, that thou
Shalt only change, erect in thine old station
By bloom and beauty which thou hast not now?
"The Maiden's Reply To The Mountain" by Samuel John Stone
Brothers! of these two voices, strange most unimaginably,
Unceasingly regenerated, dying unceasingly,
Harken-ed of the Eternal throughout His Eternity,
The one voice uttereth: NATURE! and the other voice: HUMANITY!
"Heard On The Mountain" by Francis Thompson

In news:

Standard regenerative systems fire in a one-off/one-on cycle with each burner tied directly to its own regenerator box.
I n 1972, Brazilian biologist Francisco Varela introduced the concept of "autopoiesis," which explains the process by which cells regenerate and replace themselves.
Stone Bridge Forest Preserve: A regeneration of land and spirit.
Ryan Gosling to narrate ' ReGeneration '.
What has the OEM engine manufacturer offered the user to ease the DPF regeneration process on pre-2010 heavy duty trucks.
Researchers from the University of Florida found that the spiny mouse loses up to 60 percent of its skin if pulled off but that the skin is rapidly regenerated.
A new study showed that the African spiny mouse may aid in skin regeneration research.
African spiny mouse may hold key to scar-free skin regeneration.
(CBS News) An African mouse with skin regeneration properties may hold the key to scar-free procedures for humans.
Stone crab fishermen pop off the crabs' claws – usually just one of them – then return them to the water so the claws can regenerate.
Learning to understand and work through the cycles of tearing down and regeneration helps prepare a swimmer for the final phases of the season: the taper and the peak.
A Midpark High graduate is returning to his old stomping grounds to regenerate a restaurant on Berea's north end.
Ryan Gravel is leading efforts to regenerate an abandoned railroad in Atlanta, transforming it and adjacent land into attractive public trails and parks.
The BeltLine is regenerating a large swathe of Atlanta's urban area, developing an old train line into cycle paths and walkways.
This architectural delight is made of regenerated leather without any glue and can be recycled again and again.
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In science:

This is immediate from the fact that P0 -a.s., limk→+∞ X (k) · e1 = +∞. (cid:3) Now define the sequence of regeneration times (κn )n≥1 by κ1 := κ and κn+1 := κn + κ ◦ θκn , with the convention that κn+1 = +∞ if κn = +∞.
Central Limit Theorem for the Excited Random Walk in dimension $d \geq 2$
Let us emphasize the significance of the regeneration times τ ∗ i .
Random Walks in Random Environments
RWRE and is particularly useful for proving an LLN and a CLT, due to the fact that pieces of the random walk between consecutive regeneration times (and fragments of the random environment involved thereby) are independent and identically distributed (at least starting from τ ∗ 1 ).
Random Walks in Random Environments
Sznitman (2004) has proposed a more complicated transience condition (T(cid:48) ) involving certain regeneration times τ ∗ i similar to those described in Section 10.1.
Random Walks in Random Environments
Tx < ∞, Xk 6= The last inequality is due to the fact that there is at most one regeneration time at the n-th generation.
Transient Random Walks in Random Environment on a Galton-Watson Tree
A useful tool in much of the recent progress on multidimensional RWRE is what are referred to as regeneration times.
Limiting distributions and large deviations for random walks in random environments
Remark: The condition that cℓ ∈ Zd is chosen to allow for a simpler definition of regeneration times that agrees with the one given by Sznitman and Zerner [SZ99] (set a = 1 c in the definition of regeneration times in [SZ99]).
Limiting distributions and large deviations for random walks in random environments
The advantage of working with regeneration times is that they introduce an i.i.d. structure.
Limiting distributions and large deviations for random walks in random environments
Let τi be the regeneration times in direction ℓ.
Limiting distributions and large deviations for random walks in random environments
P(Aℓ ) > 0 so that, by the remark after Theorem 6.1.3, we can use the i.i.d. structure for regeneration times under ¯P .
Limiting distributions and large deviations for random walks in random environments
We first prove an upper bound involving regeneration times.
Limiting distributions and large deviations for random walks in random environments
The paper heavily relies on estimates on the tail distribution of the first regeneration time.
Large deviations for random walks in random environment on a Galton-Watson tree
We define the first regeneration time Γ1 := inf (cid:8)k > 0 : ν (Xk ) ≥ 2, D(Xk ) = ∞, k = τ|Xk |(cid:9) as the first time when the walk reaches a generation by a vertex having more than two children and never returns to its parent.
Large deviations for random walks in random environment on a Galton-Watson tree
It implies that the first regeneration time R1 of (Yn )n≥0 defined by R1 := inf {k > 0 : Yℓ < Yk ∀ℓ < k , Ym ≥ Yk ∀m > k} is necessarily a regeneration time for (Xn , n ≥ 0), which proves in turn that Se (Γ1 > n) ≤ Qe (R1 > n) .
Large deviations for random walks in random environment on a Galton-Watson tree
In Sznitman phrased (1.3) in the language of bounds on the distribution of the first regeneration time.
Slowdown estimates for ballistic random walk in random environment
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