Results 31 to 40 of about 806,958 (301)

CO2 emissions and soil carbon mineralisation under different systems

Agro@mbiente On-line, 2019
Usage and management alter the dynamics of soil organic carbon (SOC). The aim of this study was to compare the CO2 emissions in a Typic Humudept under different uses, and to relate the effects of CO2 emissions to the organic carbon content of the soil ...
André Carlos Auler, Hagata Hennipman, Filipe Jacques, Jucimare Romaniw, Aghata Charnobay   +4 more
doaj   +1 more source

HNC, HCN and CN in Seyfert galaxies [PDF]

, 2007
Bright HNC 1--0 emission has been found towards several Seyfert galaxies. This is unexpected since traditionally HNC is a tracer of cold (10 K) gas, and the molecular gas of luminous galaxies like Seyferts is thought to have bulk kinetic temperatures ...
Aalto, Aalto, Bash, Bryant, Casoli, Curran, Davies, Graciá-Carpio, H. Gerebro, Helfer, Hirota, Hirota, Hüttemeister, J. P. Pérez-Beaupuits, Koda, Kohno, Lepp, Maloney, Meijerink, Meijerink, Meuersberger, Ngeow, Papadopoulos, Rodríguez-Franco, S. Aalto, Sandqvist, Sandqvist, Schilke, Schinnerer, Schöier, Soifer, Solomon, Spinoglio, Tacconi, Tachikawa, Talbi, Usero, Van der Tak, Wild   +38 more
core   +2 more sources

Comparison of Carbonyls and BTEX Emissions from a Light Duty Vehicle Fuelled with Gasoline and Ethanol-Gasoline Blend, and Operated without 3-Way Catalytic Converter [PDF]

Mehran University Research Journal of Engineering and Technology, 2011
This paper presents the comparison of unregulated emissions such as carbonyls and BTEX (Benzene, Toluene, Ethyl Benzene, and Xylenes) species emanated from a light duty SI (Spark Ignition) vehicle E-0 (fuelled on gasoline) and E-10 (ethanol-gasoline ...
Asad Naeem Shah, Ge Yun-Shan, Muhammad Akram Shaikh   +2 more
doaj  

Future estimates of tropospheric ozone radiative forcing and methane turnover - the impact of climate change [PDF]

, 2000
We present a range of estimates for future radiative forcings due to changes in tropospheric ozone (O3T). Ozone distributions were generated by the UKMO 3-D chemistry-transport model for 1990, 2030, 2060, and 2100, using four sets of boundary conditions.
Austin, C. E. Johnson, Collins, Collins, Cooke, D. S. Stevenson, Forster, J. M. Edwards, Johns, Johnson, Johnson, Kanakidou, Michelsen, Penner, R. G. Derwent, Riahi, Stevenson, van Dorland, W. J. Collins   +18 more
core   +1 more source

Short-Term Effects of Drying and Rewetting on CO2 and CH4 Emissions from High-Altitude Peatlands on the Tibetan Plateau

Atmosphere, 2016
This study used mesocosms to examine the effects of alternate drying and rewetting on CO2 and CH4 emissions from high-altitude peatlands on the Tibetan Plateau.
Xiaoyang Zeng, Yongheng Gao
doaj   +1 more source

Global Health and Economic Impacts of Future Ozone Pollution [PDF]

, 2009
and PDF report are also available on the MIT Joint Program on the Science and Policy of Global Change website (http://globalchange.mit.edu/).We assess the human health and economic impacts of projected 2000-2050 changes in ozone pollution using the MIT ...
, Bell M L, Bickel P, Center for International Earth Science Information Network (CIESIN), Ebi K L, Heston A Summers R Aten B, Holland M, Holland M, J M Reilly, K M Nam, Knowlton K, M D Webster, Matus K, Mayeres I, Mickley L J, N E Selin, Nam K-M Selin N E Reilly J M Paltsev S, Paltsev S Reilly J M Jacoby H D Eckaus R S McFarland J Sarofim M Asadoorian M Babiker M, R G Prinn, Royal Society, S Paltsev, S Wu, United Nations, Webster M Paltsev S Parsons J Reilly J Jacoby H   +23 more
core   +2 more sources

Calculated hydroxyl A2∑ → X2Π (0, 0) band emission rate factors applicable to atmospheric spectroscopy

Journal of Quantitative Spectroscopy and Radiative Transfer, 1997
A calculation of the A2 sigma --> X2 pi (0, 0) band emission rate factors and line center absorption cross sections of OH applicable to its measurement using solar resonant fluorescence in the terrestrial atmosphere is presented in this paper. The most accurate available line parameters have been used.
Cageao, R. P., Ha, Y. L., Jiang, Y., Morgan, M. F., Yung, Y. L., Sander, S. P.   +5 more
openaire   +3 more sources

Dense and Warm Molecular Gas between Double Nuclei of the Luminous Infrared Galaxy NGC 6240 [PDF]

, 2004
High spatial resolution observations of the 12CO(1-0), HCN(1-0), HCO+(1-0), and 13CO(1-0) molecular lines toward the luminous infrared merger NGC 6240 have been performed using the Nobeyama Millimeter Array and the RAINBOW Interferometer.
Kawabe, R., Kohno, K., Nakagawa, T., Nakanishi, K., Okumura, S. K.   +4 more
core   +1 more source

Soil nitric and nitrous oxide emissions across a nitrogen fertilization gradient in root crops: A case study of carrot (Daucus carota) production in Mediterranean climate.

PLoS ONE, 2023
Insufficient knowledge about soil nitrous and nitric oxide (N2O and NO) emissions from vegetable production limits our ability to constrain their atmospheric budget.
Elided Lumor, Udi Zurgil, Ilya Gelfand
doaj   +1 more source

An Extreme Solar Event of 20 January 2005: Properties of the Flare and the Origin of Energetic Particles

, 2008
The extreme solar and SEP event of 20 January 2005 is analyzed from two perspectives. Firstly, we study features of the main phase of the flare, when the strongest emissions from microwaves up to 200 MeV gamma-rays were observed.
A. Belov, A. M. Uralov, A. Sáiz, A. T. Altyntsev, A. V. Belov, A.A. Reinard, A.J. Tylka, A.M. Uralov, A.V.R. Silva, A.W. Labrador, B. Vršnak, B. Yu. Yushkov, B.N. Handy, B.V. Somov, B.V. Somov, C. Li, C. Li, C. Plainaki, C.K. Ng, D.F. Webb, D.L. Croom, D.L. Croom, D.M. Zarro, D.V. Reames, E.W. Cliver, E.W. Cliver, E.W. Cliver, G.A. Dulk, G.E. Brueckner, G.J. Hurford, G.M. Simnett, G.M. Simnett, H. Hudson, H. Nakajima, H. Nakajima, H.V. Cane, H.V. Cane, H.V. Cane, I. M. Chertok, I.M. Chertok, I.M. Chertok, I.M. Chertok, I.M. Chertok, J. Birn, J. Zhang, J.-P. Delaboudinière, J.M. Ryan, J.P. Castelli, K.-L. Klein, K.P. Dere, L. K. Kashapova, L.A. Fisk, L.V. Didkovsky, M. Owens, M.-B. Kallenrode, M.A. Livshits, M.D. Andrews, M.I. Desai, N. Gopalswamy, N. P. Prestage, N. S. Meshalkina, P. Bakshi, P. Démoulin, P.H. Scherrer, R. Ramaty, R. Ramaty, R. Ramaty, R. Ramaty, R.P. Lin, S. Kuznetsov, S. Kuznetsov, S. N. Kuznetsov, S. Pohjolainen, S.M. Hill, S.M. White, S.N. Kuznetsov, S.N. Kuznetsov, S.N. Kuznetsov, S.T. Akinyan, S.W. Kahler, V. G. Kurt, V. Slemzin, V. V. Grechnev, V.N. Oraevsky, V.V. Grechnev, V.V. Grechnev, W. Liu, W.M. Neupert, Y.N. Su, Z. Švestka   +89 more
core   +1 more source