Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"atmospheric emissions"”.
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Estimating launch vehicle trajectories and atmospheric emissions
… In doing so, they cause direct anthropogenic emissions in the troposphere and above. This comes with an environmental cost. They can emit carbon dioxide (CO2), water vapor, chlorine, aluminum oxide, black carbon and nitrogen oxides that lead to atmospheric changes such as ozone depletion. …
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Atmospheric emissions--opportunities for the construction industry in electrical power stations
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1993.
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Up in smoke: biomass burning and atmospheric emissions in the Sudanian savanna of Côte d’Ivoire
… burning also produces fewer gas and aerosol emissions into the atmosphere while increased vegetation cover sequesters more carbon dioxide. The research takes the political ecological approach to further our understanding of burning regimes in the sudanian savanna of Côte d’Ivoire, to present …
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Commercial and informal atmospheric emissions in the Mexico City Metropolitan Area : scenario analysis and policy proposals
… sectors contribute with significant amounts of emissions to the atmospheric pollution problem of the Mexico City Metropolitan Area (MCMA). It is more the case for some pollutants than for others, but, in any case, policies tackling the emissions of these sectors have been very few, and of very …
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The development of a strategy for Biffa Waste Services to reduce its atmospheric emissions of landfill methane
… to progressively reduce its methane emissions to atmosphere, andthen sets out to develop a strategy for achieving this aim. As a major wastedisposal company, disposing of 5.5 million tonnes of waste to landfill in 1999,the production of methane from the biodegradation of this …
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PROPOSIÇÃO DE UM SISTEMA DE GESTÃO NA ATIVIDADE DE CO-PROCESSAMENTO DE RESÍDUOS INDUSTRIAIS EM FORNOS DE CIMENTO
… waste in cement kilns, may not influence atmospheric emissions of pollutants increased by NOx, SO2, CO, THC and MP, it has been proposed a system of waste management for this activity, beginning with the residue acceptance in the generator, reception at the factory, passing through the …
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Modelagem dos processos físico-químicos e atmosféricos envolvidos na formação de oxidantes fotoquímicos em megacidades: o caso da região metropolitana do Rio de Janeiro
… a meteorological model, biogenic / anthropogenic emissions and air quality, implemented and adequate in a high performance computational platform, for the understanding of dynamic, thermodynamic and physico-chemical processes that impact on the formation of Photochemical oxidants in RMRJ. For …
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Are distributed energy technologies a viable alternative for institutional settings? : lessons from MIT Cogeneration Plant
… improving the quality of power, and reducing net atmospheric emissions.
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Investigating Variation in Launch Vehicle Atmospheric Impact by Launch Latitude and Season
Launch vehicles are a significant anthropogenic atmospheric emissions vector, and in the past have been shown to cause up to 50% as much global heating as aviation CO2. Despite this high magnitude of emissions impact, few studies quantify the variation in launch vehicle emissions beyond exploring …
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Fire Type Classification in the Brazilian Tropical Moist Forest Biome
… types are important as they have widely varying atmospheric emissions and ecological impacts. Satellite based remote sensing is a practical means of monitoring the BTMFB that spans almost 4 million km2. However, there has been no way to reliably classify satellite active fire type to date. In …
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Phasing-Out Gas Flaring In Nigeria: A Critical Assessment of the Regulatory Regime
… oil and gas industry has led to an increase in atmospheric emissions which is detrimental to the wider atmosphere. The flaring of gas during oil exploration and production (E & P) activities alarmingly contributes to the emission of green-house gases which contribute to climate change. The …
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Optimising the decommissioning of pipeline protection structures in the North Sea
… rope. A method was developed to assess atmospheric emissions and energy use for decommissioning options, including a contamination risk scenario. Reuse options onshore are available for decommissioned concrete mattresses and could be more suitable to manage than offshore options under …
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The needs of miners: political ethics, mercury abatement, and intervention in artisanal gold mining communities
… pollution, accounting for roughly 1000tonnes of atmospheric emissions and releases to the environment per annum. The artisanal mining economy involves 10-15 million people across the developing world, and supports 80-100 million people directly and indirectly. In 2003 the Governing Council of the …
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Investigating the performance and emission characteristics of diesel-LPG engine operation
… decades, attention has been placed on reducing atmospheric emissions globally, including the enforcement of stricter requirements which target emissions from internal combustion engines. This is not surprising considering the spate of public attention about the health impacts of atmospheric …
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Local air quality management and climate change: tools for joined up policy
… techniques and tools for the estimation of atmospheric emissions and subsequent air quality impact from land use, including industry, and transportation activities. An extensive number of evaluation techniques have been used to verify the robustness of these tools. These tools have been …
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Spatiotemporal variability of methane ebullition from lake sediments
… shallow oceans. However, the magnitude of these emissions and their potential for feedbacks with climate change remain poorly constrained. In many settings the majority of atmospheric methane emissions is delivered by bubbles, and the spatiotemporal heterogeneity of ebullition makes measurement …
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Multiphase flow in porous media with phase transitions : from CO₂ sequestration to gas hydrate systems
… engineered systems, one promising tool to reduce atmospheric emissions of anthropogenic carbon dioxide (CO₂) is geologic sequestration of CO₂ , which entails the injection of CO₂ into deep geologic formations, like saline aquifers, for long-term storage. Among natural contributors, methane …
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Development of a method for estimating methane gas emissions at high resolution
… of novel technique to estimate methane emissions at high spatial resolution. There is a growing need for comparisons between emission estimates produced using bottom-up and top-down techniques. In response to this, an inversion approach, InTEM, was adapted to estimate methane emissions …
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Integrating Machine Learning Into Process-Based Modeling to Predict Ammonia Losses From Stored Liquid Dairy Manure
… using process-based models to estimate emissions of pollutants, such as ammonia, from animal feeding operations. While much progress has been made to meet this call, still, their accuracy is limited because of the inadequate values of manure properties such as heat and mass transfer …
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