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Couplings between changes in the climate system and biogeochemistry

Description: The Earth's climate is determined by a number of complex connected physical, chemical and biological processes occurring in the atmosphere, land and ocean. The radiative properties of the atmosphere, a major controlling factor of the Earth's climate, are strongly affected by the biophysical state of the Earth's surface and by the atmospheric abundance of a variety of trace constituents. These constituents include long-lived greenhouse gases (LLGHGs) such as carbon dioxide (CO{sub 2}), methane (… more
Date: October 1, 2007
Creator: Menon, Surabi; Denman, Kenneth L.; Brasseur , Guy; Chidthaisong, Amnat; Ciais, Philippe; Cox, Peter M. et al.
Partner: UNT Libraries Government Documents Department
open access

Cometabolic bioremediation

Description: Cometabolic bioremediation is probably the most under appreciated bioremediation strategy currently available. Cometabolism strategies stimulate only indigenous microbes with the ability to degrade the contaminant and cosubstrate e.g. methane, propane, toluene and others. This highly targeted stimulation insures that only those microbes that can degrade the contaminant are targeted, thus reducing amendment costs, well and formation plugging, etc. Cometabolic bioremediation has been used on some… more
Date: February 15, 2009
Creator: Hazen, Terry C.
Partner: UNT Libraries Government Documents Department
open access

Mining: Variable Wall Mining Machine with Dual Duct Ventilation System

Description: This exciting new invention is highly automated, requiring only one worker to operate the cutting, conveying, and support systems. Read how the machine saves energy and increases miner safety by isolating methane and dust from worker ventilation via a dual duct system.
Date: January 29, 1999
Creator: Recca, L.
Partner: UNT Libraries Government Documents Department
open access

Biofuels for sustainable transportation

Description: Biomass is an attractive energy source, and transportation fuels made from biomass offer a number of benefits. Developing the technology to produce and use biofuels will create transportation fuel options that can positively impact the national energy security, the economy, and the environment. Biofuels include ethanol, methanol, biodiesel, biocrude, and methane.
Date: May 23, 2000
Creator: Neufeld, S.
Partner: UNT Libraries Government Documents Department
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