منابع مشابه
Biofuels
The global energy market provides humans with about 370 exajoules of energy per year, which is equivalent to about 170 million barrels of oil per day (Box 1) or about 11.73 terrawatts (TW) per hour [1]. Approximately 95% of this energy comes from fossil fuels. Additionally, the International Energy Agency suggests that direct combustion of plant biomass provides about one-third of the energy ne...
متن کاملEnzymes in Biofuels Production
1Department of Chemical and Petroleum Engineering, UAEU, Al-Ain 17555, UAE 2Department of Biotechnology, Indian Institute of Technology Madras, Chennai 600036, India 3Department of Chemical and Materials Engineering, The University of Auckland, Auckland 1142, New Zealand 4Department of Chemical Engineering, University of Malaysia, 50603 Kuala Lumpur, Malaysia 5Department of Grain Science and In...
متن کاملBiofuels Policy in Limbo
Philip Martin....................................9 Any game works better when the rules are enforced consis tently, whether it is the Superbowl or Monopoly around the kitchen table. If the referee is indecisive, then the players are uncertain about how to play and the game degenerates. Transportation fuel markets in the United States currently resemble a game with inconsistently enforced rules...
متن کاملBiotech Biofuels: How Patents May save Biofuels and Create Empires
The United States’ primary transportation energy sources are fossil fuels, namely, gasoline and diesel. These products have high environmental, security, and financial costs. A strong emphasis has been placed on biofuels, especially ethanol and biodiesel, to lessen the United States’ reliance on fossil fuels. Historically, high production costs, lack of infrastructure, return on investment anxi...
متن کاملBreakthrough in Conformal Mapping
Few analytical techniques are better known to students of applied mathematics than conformal mapping. It is the classical method for solving problems in continuum mechanics, electrostatics, and other fields involving the two-dimensional Laplace and Poisson equations. To employ the method, one needs an explicit mapping function from some standard domain— such as the unit disk or upper half plane...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2010
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(10)70149-8