News tagged with spectral energy distribution
Bats recognize the individual voices of other bats
Jun 05, 2009 |
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Bats can use the characteristics of other bats' voices to recognize each other, according to a study by researchers from the University of Tuebingen, Germany and the University of Applied Sciences in Konstanz, Germany. The ...
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Physicists observe kink in the dispersion of f-electrons
Feb 02, 2009 |
2.7 / 5 (6) |
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(PhysOrg.com) -- Los Alamos researchers in collaboration with colleagues in US and Europe report on the observation of a kink in the dispersion of f-electrons in USb2.
Energy efficiency standards for appliances should include upstream costs
May 27, 2009 |
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The U.S. Department of Energy should consider gradually changing its system of setting appliance energy-efficiency standards to a full-fuel-cycle measurement, which takes into account both the energy used to operate an appliance, ...
Identifying the 'Signatures' of Protons in Water
Physics /
Jul 13, 2005 |
5 / 5 (1) |
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Free protons from acids associate with 1, 2 or 3 molecules of water and the structures can be identified by unique infrared laser spectrum signatures, according to a report in Science by Yale professor of chemistry Mark A ...
Scientists identify origin of hiss in upper atmosphere
Space & Earth / Earth Sciences
Mar 05, 2008 |
4.4 / 5 (30) |
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Scientists have solved a 40-year-old puzzle by identifying the origin of the intense radio waves in the Earth's upper atmosphere that control the dynamics of the Van Allen radiation belts — belts consisting of high-energy ...
White glow: Dye-doped DNA nanofibers emit white light
Nanotechnology / Nanomaterials
Jul 08, 2009 |
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(PhysOrg.com) -- Efficient energy transport plays an important role in the development of optoelectonic materials. The true masters of energy transfer via a hierarchical arrangement of different molecules are the photosynthetic ...
Scientists Generate Black Hole Radiation in the Lab
Dec 07, 2009 |
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(PhysOrg.com) -- Due to their violent nature and long distance from Earth, black holes and their surroundings are very difficult to study. Currently, the main method to observe a black hole is to use an X-ray ...
Scientists Track Heat in Tiny Rolls of Carbon Atoms
Mar 02, 2009 |
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(PhysOrg.com) -- IBM Research scientists today announced a landmark study in the field of nanoelectronics; the development and demonstration of novel techniques to measure the distribution of energy and heat in powered carbon ...
Renewable energies will benefit US workers
Aug 18, 2009 |
1 / 5 (1) |
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Expansion of renewable energies should appreciably improve the health status of the 700,000 US workers employed in the energy sector, according to a commentary by Medical College of Wisconsin researchers, in Milwaukee. Their ...
Measuring Electron Orbitals
Nov 16, 2009 |
5 / 5 (8) |
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(PhysOrg.com) -- For the first time, it has been possible to measure electron density in individual molecular states using what is known as the photoelectric effect. Now published in Science, this method repres ...
High in Sodium: Highly Charged Tungsten Ions May Diagnose Fusion Energy Reactors
Sep 08, 2009 |
4.3 / 5 (7) |
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(PhysOrg.com) -- Just as health-food manufacturers work on developing the best possible sodium substitutes for low-salt diets, physicists at the National Institute of Standards and Technology have acquired ...
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