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Now showing items 191-200 of 263
Uncertainty in synthetic biology for release and possibilities for regulation under the Toxic Substances Control Act
(Massachusetts Institute of Technology, 2014)
The emerging field of synthetic biology is developing rapidly and promises diverse applications. Many anticipated applications, particularly those involving release of engineered microbes into the environment or human ...
Tragedy of the routing table : an analysis of collective action amongst Internet network operators
(Massachusetts Institute of Technology, 2011)
This thesis analyzes and discusses the effectiveness of social efforts to achieve collective action amongst Internet network operators in order to manage the growth of the Internet routing table. The size and rate of growth ...
Operational and policy implications of managing uncertainty in quality and emissions of multi-feedstock biodiesel systems
(Massachusetts Institute of Technology, 2012)
As an alternative transportation fuel to petrodiesel, biodiesel has been widely promoted within national energy portfolio targets across the world. Early estimations of low lifecycle greenhouse gas (GHG) emissions of ...
Climate policy and the airline industry : emissions trading and renewable jet fuel
(Massachusetts Institute of Technology, 2012)
In this thesis, I assess the impact of the current EU Emissions Trading Scheme and a hypothetical renewable jet fuel mandate on US airlines. I find that both the EU Scheme up until 2020 and a renewable jet fuel mandate of ...
Life-cycle assessment of Greenhouse Gas emissions from alternative jet fuels
(Massachusetts Institute of Technology, 2008)
The key motivation for this work was the potential impact of alternative jet fuel use on emissions that contribute to global climate change. This work focused on one specific aspect in examining the feasibility of using ...
Tagging wild cetaceans : investigating the balance between more and less invasive techniques
(Massachusetts Institute of Technology, 2015)
On-animal tags provide an incredible window into the world of cetaceans, allowing researchers to track movements across ocean basins and investigate fine-scale behavior deep below the surface. The earliest cetacean tags ...
Modeling of material recovery facility performance with applications for life cycle assessment
(Massachusetts Institute of Technology, 2017)
Single stream recycling programs improve participation rates and divert more end-of-life products from landfill to recycling. The resulting mixture of waste must be sorted, however, before individual materials can be ...
Public health impacts of excess NOx̳ emissions from Volkswagen diesel passenger vehicles in Germany
(Massachusetts Institute of Technology, 2017)
In September 2015, the Volkswagen Group (VW) admitted the use of "defeat devices" designed to lower emissions measured during VW vehicle testing for regulatory purposes. Globally, 11 million cars sold between 2008 and 2015 ...
Emergence of second-generation low earth orbit satellite constellations : a prospective technical, economic, and policy analysis
(Massachusetts Institute of Technology, 2018)
Modern proposals for Low Earth Orbit (LEO) satellite constellations underscore the tremendous potential and versatility of distributed spacecraft missions (DSMs), but they have also begun to stress the limits of the existing ...
Whose fault is it anyway? evaluating the energy efficiency gap in commercial buildings & measuring energy savings associated with fault detection and diagnostics
(Massachusetts Institute of Technology, 2017)
According to the International Energy Agency, energy efficiency programs make up 72% of global greenhouse gas abatement strategies. However, there is extensive literature that shows compelling evidence for an "energy ...