Browsing by Submit Date
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Real time audio signal processing in Java
Real time audio signal processing in Java requires consideration of the computational power of the system. An intuitive GUI allows users to adjust the window and frames per second to effectively process the audio signal. ... -
Environmental isolation of thermotolerant Ameobae from Wolf Creek Generating Station cooling waters
Naegleria fowleri is a free-living, thermophilic, amoeboflagellate that is the causative agent of a rare, yet severe disease of the central nervous system called Primary Amoebic Meningoencephalitis (PAM), which is nearly ... -
RetroCameras! (Manning)
Enjoy student research into a multitude of old cameras! Students have discovered old image-makers in attics, basements, antique and junk stores. They have made them operational through direction from experts in the field, ... -
RetroCameras! (Powell)
Enjoy student research into a multitude of old cameras! Students have discovered old image-makers in attics, basements, antique and junk stores. They have made them operational through direction from experts in the field, ... -
RetroCameras! (Steinmetz)
Enjoy student research into a multitude of old cameras! Students have discovered old image-makers in attics, basements, antique and junk stores. They have made them operational through direction from experts in the field, ... -
RetroCameras! (Morgan)
Enjoy student research into a multitude of old cameras! Students have discovered old image-makers in attics, basements, antique and junk stores. They have made them operational through direction from experts in the field, ... -
RetroCameras! (Garwood)
Enjoy student research into a multitude of old cameras! Students have discovered old image-makers in attics, basements, antique and junk stores. They have made them operational through direction from experts in the field, ... -
Climatic And Biogeochemical Effects Of A Galactic Gamma-Ray Burst
It is likely that one or more gamma-ray bursts within our galaxy have strongly irradiated the Earth in the last Gy. This produces significant atmospheric ionization and dissociation, resulting in ozone depletion and ... -
Atmospheric Consequences of Cosmic Ray Variability in the Extragalactic Shock Model
It has been suggested that galactic shock asymmetry induced by our galaxy's infall toward the Virgo Cluster may be a source of periodicity in cosmic ray exposure as the solar system oscillates normal to the galactic plane, ... -
Ozone Abundance In A Nitrogen-Carbon Dioxide Dominated Terrestrial Paleoatmosphere
We compute the ozone distribution for a model terrestrial paleoatmosphere in which the present oxygen abundance is largely replaced by carbon dioxide, which we argue is a reasonable working assumption. In principle, the ... -
Modeling Atmospheric Effects Of The September 1859 Solar Flare
We have modeled atmospheric effects, especially ozone depletion, due to a solar proton event which probably accompanied the extreme magnetic storm of 1-2 September 1859. We use an inferred proton fluence for this event as ... -
Quantifying The Bull's Eye Effect
We have used N-body simulations to develop two independent methods to quantify redshift distortions known as the Bull's Eye effect (large scale infall plus small scale virial motion). This effect depends upon the mass ... -
Superluminous Supernovae No Threat From Eta Carinae
Recently Supernova 2006gy was noted as the most luminous ever recorded, with a total radiated energy of -10(44) Joules. It was proposed that the progenitor may have been a massive evolved star similar to n Carinae, which ... -
Terrestrial Consequences Of Spectral And Temporal Variability In Ionizing Photon Events
Gamma-Ray Bursts (GRBs) directed at Earth from within a few kpc may have damaged the biosphere, primarily through changes in atmospheric chemistry which admit greatly increased Solar UV. However, GRBs are highly variable ... -
Terrestrial Ozone Depletion Due To A Milky Way Gamma-Ray Burst
Based on cosmological rates, it is probable that at least once in the last Gy the Earth has been irradiated by a gamma-ray burst in our Galaxy from within 2 kpc. Using a two-dimensional atmospheric model we have performed ... -
A Lookup Table To Compute High Energy Cosmic Ray Effects on Terrestrial Atmospheric Chemistry
A variety of events such as gamma-ray and supernovae may expose the Earth to an increased flux of high-energy cosmic rays, with potentially important effects on the biosphere. Existing atmospheric chemistry software does ... -
Did A Gamma-Ray Burst Initiate The Late Ordovician Mass Extinction
Gamma-ray bursts (GRBs) produce a flux of radiation detectable across the observable Universe. A GRB within our own galaxy could do considerable damage to the Earth's biosphere; rate estimates suggest that a dangerously ... -
Does Nitrate Deposition Following Astrophysical Ionizing Radiation Events
As diversity in amphibian species declines, the search for causes has intensified. Work in this area has shown that amphibians are especially susceptible to the combination of heightened UVB radiation and increased nitrate ... -
Gamma-Ray Bursts And The Earth Exploration Of Atmospheric Biological Climatic And Biogeochemical Effects
Gamma-Ray Bursts (GRBs) are likely to have made a number of significant impacts on the Earth during the last billion years. The gamma radiation from a burst within a few kpc would quickly deplete much of the Earth's ... -
Gamma-ray Bursts and Terrestrial Planetary Atmospheres
We describe results of modelling the effects on Earth-like planets of long-duration gamma-ray bursts (GRBs) within a few kiloparsecs. A primary effect is generation of nitrogen oxide compounds which deplete ozone. Ozone ...