Science-2006-Imre-205-8 - Majority Logic Gate for Magnetic...

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DOI: 10.1126/science.1120506 , 205 (2006); 311 Science , et al. A. Imre Majority Logic Gate for Magnetic Quantum-Dot Cellular Automata This copy is for your personal, non-commercial use only. clicking here. colleagues, clients, or customers by , you can order high-quality copies for your If you wish to distribute this article to others here. following the guidelines can be obtained by Permission to republish or repurpose articles or portions of articles ): September 6, 2011 (this infomation is current as of The following resources related to this article are available online at version of this article at: including high-resolution figures, can be found in the online Updated information and services, can be found at: Supporting Online Material found at: can be related to this article A list of selected additional articles on the Science Web sites 101 article(s) on the ISI Web of Science cited by This article has been 3 articles hosted by HighWire Press; see: cited by This article has been Physics, Applied subject collections: This article appears in the following registered trademark of AAAS. is a Science 2006 by the American Association for the Advancement of Science; all rights reserved. The title Copyright American Association for the Advancement of Science, 1200 New York Avenue NW, Washington, DC 20005. (print ISSN 0036-8075; online ISSN 1095-9203) is published weekly, except the last week in December, by the Science on September 6, 2011 Downloaded from
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Ethane precipitation occurs essentially in large regions poleward of T 70 - ,w i th È 0.2 mm per Titan year in polar regions and a few mi- crometers per year elsewhere. The methane cycle is a balance between the surface evapo- ration and precipitation. Methane evaporates between the tropics (in the T 30 - range) and precipitates near the poles .Int rop ica lreg ion s , most of the methane clouds evaporate before reaching the ground, except for the largest ones. At latitudes of T 70 - , methane precipitation does not exceed 1 cm per year, but poleward of T 70 - it can reach 1 m per year. The global cycle then drives methane from equatorial and tropical to polar regions. Methane is probably not stable in tropical regions on geological time scales, and because the Huygens landing site was humid and marked by river channels, this indicates that a source of methane is still active on Titan (
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Science-2006-Imre-205-8 - Majority Logic Gate for Magnetic...

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