Results 351 to 360 of about 3,929,924 (389)

Evaluation of Emissions and Emission Factors

1997
The EURAD model has been applied to a summer smog episode in July/August 1990. The transport, chemical transformation and deposition of atmospheric constituents for that episode have been calculated. Emission data estimated by GENEMIS have been used to replace the standard scheme of the EURAD emission model EEM which is based mainly on annual EMEP data.
H. J. Bock, Hermann Jakobs, Adolf Ebel, Kurt Schläpfer, A. Oberreuter, H. Hass, G. Piekorz, Michael Memmesheimer, Johannes Staehelin   +8 more
openaire   +2 more sources

Subsistence Emissions and Luxury Emissions

Law & Policy, 1993
The United Nations Framework Convention on Climate Change adopted in Rio de Janeiro at the United Nations Conference on Environment and Development (UNCED) in June 1992 establishes no dates and no dollars. No dates are specified by which emissions are to be reduced by the wealthy states, and no dollars are specified with which the wealthy states will ...
openaire   +2 more sources

Emission uniformity and emission area of explosive field emission cathodes

Applied Physics Letters, 2001
Explosive field emission cathodes have been used extensively in high power microwave tubes. These cathodes emit electrons without the use of cathode heaters. Recently, some theoretical and simulation work has been performed to gain further understanding of the physics of these cathodes.
M. Ruebush, D. Zagar, Don Shiffler, R. J. Umstattd, M. LaCour, K. Golby, M. Sena, M. C. Clark, John W. Luginsland   +8 more
openaire   +2 more sources

Otoacoustic emissions

Current Opinion in Otolaryngology & Head and Neck Surgery, 2003
Otoacoustic emissions offer the practitioner a number of beneficial features as a noninvasive and objective measure of the ear's ability to process acoustic stimuli.Since their discovery, a number of clinical applications of otoacoustic emissions have been established, including their utility in the differential diagnosis of sensorineural hearing loss,
Brenda L, Lonsbury-Martin, Glen K, Martin   +1 more
openaire   +2 more sources

Efficient emissions control with emissions taxes and international emissions trading

European Economic Review, 2009
Abstract We consider a stylized model of the hybrid CO 2 emissions control in the EU. A group of countries operates a joint emissions trading system (ETS) covering only part of each country's economy. The countries levy an emissions tax in the rest of their economy and, possibly, an additional tax in their ETS sectors. Welfare-maximizing
Rüdiger Pethig, Thomas Eichner
openaire   +2 more sources

Methane emissions from cattle.

Journal of Animal Science, 1995
Increasing atmospheric concentrations of methane have led scientists to examine its sources of origin. Ruminant livestock can produce 250 to 500 L of methane per day.
Kristen A. Johnson, D. Johnson, D. Johnson   +2 more
semanticscholar   +1 more source

The Big Three and Corporate Carbon Emissions Around the World

Journal of Financial Economics, 2020
This paper examines the role of the “Big Three” (i.e., BlackRock, Vanguard, and State Street Global Advisors) on the reduction of corporate carbon emissions around the world. Using novel data on engagements of the Big Three with individual firms, we find
José Azar, Miguel Duro, Igor Kadach, G. Ormazabal   +3 more
semanticscholar   +1 more source

Emissions Trading

2014
This encyclopedia entry summarizes the theory and practice of emissions trading as a market-based instrument to achieve an environmental target in a cost-effective way by allowing legal entities to buy and sell emission rights. In theory, there are three basic design variants of emissions trading: cap-and-trade (allowance trading), performance standard
openaire   +3 more sources

Food systems are responsible for a third of global anthropogenic GHG emissions

Nature Food, 2021
M. Crippa, E. Solazzo, D. Guizzardi, F. Monforti-Ferrario, F. Tubiello, A. Leip   +5 more
semanticscholar   +1 more source

Emission and Emissive Mechanism of Nonaromatic Oxygen Clusters

Macromolecular Rapid Communications, 2018
AbstractNonaromatic luminophores without remarkable conjugates have aroused great attention. Their emission mechanism, however, remains an open question. Meanwhile, previous studies generally focus on aliphatic amine and/or carbonyl‐containing systems; those with merely oxygen moieties (i.e., ether, hydroxyl) are scarcely touched.
Yunzhong Wang, Xin Bin, Xiaohong Chen, Shuyuan Zheng, Yongming Zhang, Wang Zhang Yuan   +5 more
openaire   +3 more sources