ring system


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ring system

[′riŋ ‚sis·təm]
(organic chemistry)
Arbitrary designation of certain compounds as closed, circular structures, as in the six-carbon benzene ring; common rings have four, five, and six members, either carbon or some combination of carbon, nitrogen, oxygen, sulfur, or other elements.
References in periodicals archive ?
On the other hand, observations by Cassini indicate that the small satellites orbiting near the outer edge of the main ring system have a dense core.
Reported in the February 20th Astrophysical Journal, the new analysis shows more than 30 separate ring structures, within a ring system spanning 1.
With its amazing ring system and selection of moons, it is an object which never fails to disappoint.
Saturn's main ring system is huge but razor-thin, measuring about 175,000 miles across but just 33 feet or so in the vertical direction.
According to AT&T, the SONET ring system will offer alternate communications circuits should the network be disrupted, with Republic Services able to continue business operations.
Although he probably won't claim it, as it's not his style, Tiger McKee showed us a ring system some years ago now replicated in the Streamlight TR Illumination system.
There will be fabulous views of its ring system and its brighter moons.
Using the ring system pallets can be wrapped from bottom to top, without the requirement of going to base again to seal and cut the film, thus reducing material costs.
Combining ground-based near-infrared observations from the Keck Telescope in Hawaii and visible-light photos taken by the Hubble Space Telescope, scientists discovered two faint rings, located well outside of Uranus' main ring system.
The newly-refurbished telescope promises spectacular views of the planet and its amazing ring system and professional astronomers will be on hand to point out the planet's features.
An upgrade of the Beijing Electron-Positron Collider (BEPCII) officially entered its second phase this past July with the dismantlement of the 17-yr old single storage ring and the installation of a new double ring system.
The study was performed in the isolated pulmonary artery ring system and human pulmonary artery endothelial cells (HPAECs).