Two new nuclear reactors approved in US
Physics Today: Today the US Nuclear Regulatory Commission voted in favor of granting a construction license for two nuclear reactors to be built in Georgia. As reported in the New York Times yesterday, the license will be the first to be issued since the Three Mile Island accident in 1978. In anticipation, the Southern Company had already invested hundreds of millions of dollars in the project.
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High-Resolution Molecular Orbital Imaging Using a p-Wave STM Tip
Individual pentacene and naphthalocyanine molecules adsorbed on a bilayer of NaCl grown on Cu(111) were investigated by means of scanning tunneling microscopy using CO-functionalized tips. The images of the frontier molecular orbitals show an increased lateral resolution compared
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The Life and Death of Unwanted Bits: Towards Proactive Waste Data Management in Digital Ecosystems
Abstract
Our everyday data processing activities create massive amounts of data. Like physical waste and trash, unwanted and unused data also pollutes the digital environment by degrading the performance and capacity of storage systems and requiring costly disposal.
Atomic avalanches show up in x rays
Certain crystals switch their structural pattern by tiny but coordinated movements of the constituent atoms. Recent experiments have suggested that these transitions are not wholesale conversions, but a series of sudden, localized shifts inside the crystal.
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Thermal model for performance prediction of integrated collector storage systems
The result of many years of global research on solar water heating systems has outlined the promising approach of integrated collector storage solar water heaters (ICS-SWHs) in cold climates. This research paper aims to model the field performance of a newly developed ICS-SWH
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Experimental investigation of the night heat losses of hot water storage tanks in thermosyphon solar water heaters
The effects of night heat losses on the performance of thermosyphon solar water heaters have been experimentally examined. Three typical thermosyphon solar water heating systems with different storage tank sizes were tested by
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Atmosphere-Ionosphere Response to the M9 Tohoku Earthquake Revealed
The recent M9 Tohoku Japan earthquake of March 11, 2011 was the largest recorded earthquake ever to hit this nation. We retrospectively analyzed the temporal and spatial variations of four different physical parameters – outgoing long wave radiation (OLR), GPS/TEC, Low-Earth orbit tomography and critical frequency foF2.
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An Exceptionally Simple Theory of Everything
All fields of the standard model and gravity are unified as an E8 principal bundle connection. A non-compact real form of the E8 Lie algebra has G2 and F4 subalgebras which break down to strong su(3), electroweak su(2) x u(1), gravitational so(3,1), the frame-Higgs, and three generations of fermions related by triality.
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Why is the earth not burning ? The earth radiative energy balance
The concept of energy balance is a key one in climate science. Yet, students may find it counter- intuitive: while it is obvious that some energy comes in from the sun, the part coming out is more elusive. Asking them why the earth is not burning after billions of years of exposure to the sun, takes them to the question “where does the energy goes ?”
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