Results 21 to 30 of about 1,881,182 (108)

The effect of butanol isomers on the formation of carbon particulate matter in fuel-rich premixed ethylene flames [PDF]

, 2019
The effect of the butanol isomers on carbon particulate matter formation was studied by substituting up to 20% of the total carbon of ethylene, fed to premixed flames with different equivalence ratios, with the four butanol isomers.
Ciajolo, A., D'Anna, A., Russo, C., Sirignano, M.   +3 more
core   +2 more sources

Climatic, edaphic, and biotic controls over storage and turnover of carbon in soils [PDF]

, 1994
Soil carbon, a major component of the global carbon inventory, has significant potential for change with changing climate and human land use. We applied the Century ecosystem model to a series of forest and grassland sites distributed globally to examine
Braswell, Rob, Holland, Elisabeth A, McKeown, R, Ojima, Dennis S, Painter, Thomas H, Parton, W J, Schimel, David S, Townsend, Alan R   +7 more
core   +2 more sources

The Shared Socioeconomic Pathways and their energy, land use, and greenhouse gas emissions implications: An overview

, 2017
This paper presents the overview of the Shared Socioeconomic Pathways (SSPs) and their energy, land use, and emissions implications. The SSPs are part of a new scenario framework, established by the climate change research community in order to ...
K. Riahi, D. P. Vuuren, E. Kriegler, J. Edmonds, B. O’Neill, S. Fujimori, N. Bauer, K. Calvin, R. Dellink, Oliver Fricko, W. Lutz, A. Popp, J. Cuaresma, S. Kc, Marian Leimbach, Leiwen Jiang, T. Kram, Shilpa Rao, J. Emmerling, K. Ebi, T. Hasegawa, P. Havlík, Florian Humpenöder, L. Silva, Steven J. Smith, E. Stehfest, V. Bosetti, J. Eom, D. Gernaat, T. Masui, J. Rogelj, J. Strefler, L. Drouet, V. Krey, Gunnar Luderer, M. Harmsen, Kiyoshi Takahashi, Lavinia Baumstark, J. Doelman, M. Kainuma, Z. Klimont, G. Marangoni, H. Lotze-Campen, M. Obersteiner, A. Tabeau, M. Tavoni   +45 more
semanticscholar   +1 more source

Optimal Control of Diesel Engines: Numerical Methods, Applications, and Experimental Validation

Mathematical Problems in Engineering, Volume 2014, Issue 1, 2014., 2014
In response to the increasingly stringent emission regulations and a demand for ever lower fuel consumption, diesel engines have become complex systems. The exploitation of any leftover potential during transient operation is crucial. However, even an experienced calibration engineer cannot conceive all the dynamic cross couplings between the many ...
Jonas Asprion, Oscar Chinellato, Lino Guzzella, Hui Zhang   +3 more
wiley   +1 more source

Homes as machines: Exploring expert and public imaginaries of low carbon housing futures in the United Kingdom [PDF]

, 2017
Low carbon housing policies embody visions of the future that shape and constrain current choices between different technological pathways. These socio-technical imaginaries include expectations around new ways of living and interacting with technology ...
Cherry, Catherine, Hopfe, C., MacGillivray, Brian Hector, Pidgeon, Nicholas Frank   +3 more
core   +2 more sources

Partitioned Quasi‐Newton Approximation for Direct Collocation Methods and Its Application to the Fuel‐Optimal Control of a Diesel Engine

Journal of Applied Mathematics, Volume 2014, Issue 1, 2014., 2014
The numerical solution of optimal control problems by direct collocation is a widely used approach. Quasi‐Newton approximations of the Hessian of the Lagrangian of the resulting nonlinear program are also common practice. We illustrate that the transcribed problem is separable with respect to the primal variables and propose the application of dense ...
Jonas Asprion, Oscar Chinellato, Lino Guzzella, M. Montaz Ali   +3 more
wiley   +1 more source

Life Cycle Costs and Life Cycle Assessment for the Harvesting, Conversion, and the Use of Switchgrass to Produce Electricity

International Journal of Chemical Engineering, Volume 2013, Issue 1, 2013., 2013
This paper considers both LCA and LCC of the pyrolysis of switchgrass to use as an energy source in a conventional power plant. The process consists of cultivation, harvesting, transportation, storage, pyrolysis, transportation, and power generation.
Nuttapol Lerkkasemsan, Luke E. K. Achenie, Antonia Pérez de los Ríos   +2 more
wiley   +1 more source

Comparison of boreal ecosystem model sensitivity to variability in climate and forest site parameters [PDF]

, 2001
Ecosystem models are useful tools for evaluating environmental controls on carbon and water cycles under past or future conditions. In this paper we compare annual carbon and water fluxes from nine boreal spruce forest ecosystem models in a series of ...
Amthor, Jeffrey S, Chen, Jing M, Clein, Joy S, Frolking, Steve, Grant, Robert F, Kimball, John, King, A W, Liu, Jane, McGuire, A D, Nikolov, Ned T, Potter, Christopher S, Wang, Shusen   +11 more
core   +2 more sources

Unique Opportunities of Island States to Transition to a Low-Carbon Mobility System [PDF]

, 2020
Small islands developing states (SIDS) contribute minuscule proportions to global greenhouse gas (GHG) emissions and energy consumption, but are highly exposed to climate change impacts, in particular to extreme weather events and sea-level rise. However,
Blechinger, Philipp, Creutzig, Felix, Soomauroo, Zakia   +2 more
core   +1 more source

New considerations for PM, Black Carbon and particle number concentration for air quality monitoring across different European cities [PDF]

, 2011
In many large cities of Europe standard air quality limit values of particulate matter (PM) are exceeded. Emissions from road traffic and biomass burning are frequently reported to be the major causes. As a consequence of these exceedances a large number
Alastuey, Andrés, Dall'Osto, M., De la Rosa, J., Fernández Camacho, R., González, Y., Harrison, R. M., Hueglin, C., Moreno Pérez, Teresa, Pey, J., Prévôt, A. S. H., Querol Carceller, Xavier, Quincey, P., Reche Andúgar, Cristina, Rodríguez, S., Sánchez de la Campa, A. M., Viana Rodríguez, María del Mar   +15 more
core   +7 more sources