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.
Results
Showing 1 to 20 of 28 for “"Policy Constraints"”.
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Cost Optimization of US Sustainable Aviation Fuel Supply Chain Under Different Policy Constraints
This thesis quantifies the costs and emissions of a potential sustainable aviation fuel supply chain in the US in 2035 while incorporating regional uncertainty analysis. Feedstock availability is quantified using projected arable land availability, agricultural yields, and projected waste and …
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National security policy constraints on technological innovation: A case study of the Invention Secrecy Act of 1951
… This case study examined national security policy constraints on technological innovation, specifically the Invention Secrecy Act. It focused on the social constructs of collaboration and interdisciplinary knowledge in the aerospace industry. The methodology included historical research, …
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Institutional Frictions & Policy Constraints in Macroeconomic Transmission: Essays in Macroeconomics, Monetary & Fiscal Policy, and DSGE Business Cycle Modelling
… particularly through monetary and fiscal policy. Beyond the methodological framework, the unifying thread is modelling and assessing the role in the macroeconomic transmission and stabilisation of an array of institutional frictions and policy constraints -- on the back of the organising …
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Privacy, Access Control, and Integrity for Large Graph Databases
… in published graph data under an access control policy enforcement, and ii) how to verify the integrity and query results of graph datasets. To address the first challenge, a privacy-protection framework under role-based access control (RBAC) policy constraints is proposed. The design of such a …
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A Firm-Level Model for Commercial Banks Servicing Agriculture: A Multi-Stage Stochastic Programming Approach
… base may not be needed; (6) loan demand, policy constraints, and gap ratios are often constraining the level of alternative funds used; and (7) arbitraging may occur in banks' investment portfolio as additional funding is used.
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Models for Privacy in Ubiquitous Computing Environments
… present a model for trustworthy routing, with a policy specification language that is computationally efficient to enforce. We show how quantitative trust models can be used to find trustworthy paths of communication and explore various semantic models of trust. For the unlinkability of a user's …
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Optimal depot level maintenance planning
… an effective and efficient maintenance policy for the tank fleet. Specifically, a linear integer programming model with an embedded multi-commodity network structure is formulated to solve the tank maintenance problem. The objective of the optimal tank maintenance model is to maximize …
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Decision tools for electricity transmission service and pricing : a dynamic programming approach
… are introduced to reflect mathematical and policy constraints that are crucial to distributed network operations in power systems.
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Quantifying the cost uncertainty of climate stabilization policies
… effects of climate stabilization policies. Policy costs are particularly important because policymakers use a cost/benefit framework to analyze policy options. Many different models have been developed to estimate economic costs and to inform cost/benefit decisions. This thesis examines what …
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The dynamics of circular migration in Southern Europe
… recent economic crisis conditions but also under policy constraints. Based on a qualitative analytical approach, the model demonstrates how adaptive policies can enable macroeconomic equilibrium in environments where circular migration can be implemented. We also show that circular migration is …
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The siting of public transport facilities in a predominately low to middle-income area, Klapmuts, on the outskirts of a metropolitan city, Cape Town
… to critically evaluate relevant guidelines and policy documentation to aid in the siting of public transport facilities in a low to middle-income area, using Klapmuts, located on the outskirts of a metropolitan city, Cape Town as the study area. From a critical assessment of current practices, a …
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Quantifying technology infusion and policy impact on low earth orbit communication satellite constellations
Technology infusion and policy implementation bring impacts to the trade space of complex engineering systems. This work describes in detail the frameworks for quantitative analyses on these impacts, demonstrates their use on the sample system, and presents the analysis results. The low earth orbit …
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Statistical learning in network architecture
… face a security arms race while balancing policy constraints, network demands and commercial relationships. This thesis espouses learning to embrace the Internet's inherent complexity, address diverse problems and provide a component of the network's continued evolution. Malicious nodes, …
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Access Control and Storage of Distributed IoT Data
… constraint language to implement these policy constraints through the creation of a pluggable topology provider in the configuration files of Cassandra. Experiments using the modified Cassandra trunk demonstrate that our techniques work well, respect response times and improves read and …
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Climate change adaptation measures in agriculture : a case of conservation agriculture for small-scale farmers in Kalomo District of Zambia
… resource development, financial resource and policy constraints and cultural barriers to adoption of CA.
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Sustainable urban waste management through the lens of service users
… implementation of an effective waste management policy. The key research questions are: what are the barriers to achieving a high recycling rate in the City of Westminster and how can these barriers be removed? The research used mixed methods to collect data through residents’ online surveys, …
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Redesigning liver allocation regions through optimization
… with transportation time, United States organ policy prioritizes transplants within geographic regions. However, the boundaries of these regions were defined mostly by informal relationships between transplant centers many decades ago, which has created local imbalances in supply and demand. As …
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Multi-vector Energy Systems Analysis for Heavy-duty Transportation Deep Decarbonization Using H₂ and Synthetic Fuels
… chains subject to a variety of technological and policy constraints to meet the exogeneous final energy demand slate. Through a case study of Western European countries under deep decarbonization constraints for the year 2040, we quantify the energy system implications of varying levels of H₂ and …
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