compact disk

Definitions

  • WordNet 3.6
    • n compact disk a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser
    • ***

Usage

In literature:

Nothing in fact except for a shiny little compact disk, a CD.
"The Samurai Strategy" by Thomas Hoover
***

In news:

Thinking beyond Jay-Z and Coldplay, researchers at Ohio State University have turned a standard compact disk into a biochemical laboratory.
Compact disks range in price from $10 to $18, for a single CD, to $25 to $32, for a double set, to $60 for a six-CD set.
Compact disks range from $9.99 to $16.99 for one CD, to $18 to $24 for a three-CD set, to $53.64 for a package of seven.
(FORTUNE Magazine) – SPOILED BY the rich sound of Mozart on your compact disk player.
Videodisks have been around for a long time, as time is measured in the restless consumer electronics business -- first in the early 1980's as needle-played relatives of the long-playing record, then as laser relatives of the compact disk.
They just fade into a twilight zone of reunion tours, lite-music radio and fussily annotated compact disk anthologies.
The music and film company, jolted markets today by warning that an absence of major compact disk releases and financial write-downs in Asia would reduce first-quarter profit.
Compact disks range in price from $15.99 for a single disk to $25.98 for a two-disk set or $40 for a four-disk package.
It enables you to definitely bypass any forgotten Home windows password by burning a boot password totally reset disk with Compact disc/DVD or USB memory stick.
The simple, bright voices that sing out from "A Land of Pure Delight," a compact disk of Billings tunes from Harmonia Mundi France, have a brief and fragile charm.
The patent-pending Mini Disk silo fluidizer prevents bridging, rat-holing, and compacting in silos , bins, and hoppers.
***

In science:

The fast algorithm is proved to converge uniformly on any compact subset in the disk and the numerical test has shown that it reconstructs images accurately and is as good as the original OPED algorithm.
Fast OPED algorithm for reconstruction of images from Radon data
But you can never get rid of the disk completely, so ultra-compact dwarfs cannot be made this way (Mastropietro et al. 2005).
Astrophysics in 2006
In the following compactness theorem we prove that if the elements of the sequence in Theorem 2.8 are embedded disks, so is the limit.
Structure theorems for embedded disks with mean curvature bounded in L^P
Let 0 ∈ Σ ⊂ BR ⊂ R3 be a compact embedded minimal disk such that ∂Σ ⊂ ∂BR .
Structure theorems for embedded disks with mean curvature bounded in L^P
In the next corollary we prove that if the second fundamental form of a compact embedded disk is big at a point, but not necessarily almost its maximum, and the disk satisfies (4.3) in Theorem 4.16 then the disk contains a multi-valued graph, possibly around another point.
Structure theorems for embedded disks with mean curvature bounded in L^P
Davies et al. also map the stellar velocity dispersions σ⋆ , and find σ⋆ -drops delineating a compact stellar disk.
Observational Overview of the Feeding of Active Galactic Nuclei
The dust structures seen in the active galaxies present a range of morphologies, from chaotic filaments, through more organized spiral structure to compact disks, which led Lauer et al. (2006) to suggest evolution or a “settling sequence”.
Observational Overview of the Feeding of Active Galactic Nuclei
An unexpected result of the above study was the finding that at least 50% of non-active galaxies present nuclear stellar disks, which are not seen in the active galaxies, and which seem to be somewhat more compact than the dust structures in the active galaxies.
Observational Overview of the Feeding of Active Galactic Nuclei
The jets observed to emanate from many compact accreting ob jects may arise from the twisting of the magnetic field threading a differentially rotating accretion disk which acts to magnetically extract angular momentum and energy from the disk.
Launching of Poynting Jets from Accretion Disks
The jets observed to emanate from many compact accreting ob jects may arise from the twisting of the magnetic field threading a differentially rotating accretion disk which acts to magnetically extract angular momentum and energy from the disk.
Launching of Poynting Jets from Accretion Disks
Dullemond & Dominik (2005) find that in laminar disks, porous aggregates achieve equivalent compact sizes of a few cm before settling to the midplane, while particles assumed to be always compact grow up to 1 cm (see their Figure 3, models S2, S5, and S6).
Forming Planetesimals in Solar and Extrasolar Nebulae
For the remainder of this paper, M will denote a compact, orientable, irreducible 3-manifold, T a component of ∂M which is homeomorphic to a torus, and M (α) the result of Dehn filling along α, i.e. attaching a solid torus to M along T so that a loop representing α bounds a disk.
Surfaces that become isotopic after Dehn filling
Jets are narrow (opening angle < 5◦ ), long (length > 107 ly in the case of AGN), and fast (v > 0.9c) streams of matter emerging from very compact regions around the black hole, usually in opposite directions, presumably normal to the plane of the accretion disk.
Foundations of Black Hole Accretion Disk Theory
Little of what we have said so far has depended on whether the central compact ob ject is a black hole or neutron star, provided only that the neutron star is compact enough to lie inside the inner radius of the disk rin .
Foundations of Black Hole Accretion Disk Theory
It was suggested that GRBs are associated with ob jects involving accretion of a massive (∼ 0.1M⊙ ) disk onto a compact ob ject, most likely a newborn black hole.
Statistical Analysis of the Observable Data of Gamma-Ray Bursts
***