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 22 for “"demand systems"”.
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Single video performance analysis for video-on-demand systems
… placement problem for cache delivery video-on-demand systems under static random network topologies with fixed heavy-tailed video demand. The performance measure is the amount of server load; we wish to minimize the total download rate for all users from the server and maximize the rate from …
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The impact of highly interactive workloads on video-on-demand systems
The traditional start-to-finish playback model is not suitable for all modern interactive video streams. Users expect support for higher levels of interactivity such as fast forward and rewind or the ability to arbitrary seek within their media quickly and efficiently. By conducting user studies we …
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Demand estimation and fleet management for autonomous mobility on demand systems
Mobility On Demand (MOD) systems are creating a paradigm shift in transportation, where mobility is provided not through personally owned vehicles but rather through a fleet of shared vehicles. To maintain a high customer quality of service (QoS), MOD systems need to manage the distribution of …
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How system configuration shapes demand: agent-based simulation of mobility-on-demand systems
To establish Mobility-on-Demand (MoD) and autonomous Mobility-on-Demand (AMoD) services as part of sustainable transport systems, a forward-looking configuration process is indispensable. Modern methods such as agent-based transport simulation are particularly well suited for this task, as they …
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A modern econometric approach to estimating theoretically consistent demand systems of retail brands
… investigation of the cake mix and frosting demand system using daily data on sales figures, prices and marketing mix variables. SUR maximum likelihood is used to estimate static and dynamic (error correction) linear almost ideal demand systems. Results compare static and dynamic model …
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Value of information in dispatching shared autonomous mobility-on-demand systems : a simulation framework
The concept of shared mobility-on-demand (MoD) systems describes an innovative mode of transportation in which rides are tailored as per the immediate requests in a shared manner. Convenience of hailing, ease of transactions, and economic efficiency of crowd-sourcing the rides have made these …
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Simulation-based design of integrated public transit and shared autonomous mobility-on-demand systems
… major trends in transportation: automation, on-demand mobility and ride-sharing, are set to revolutionize the way we travel. The forthcoming adoption and commercialization of AVs are expected to have extensive impacts on our road networks, congestion, safety, land use, public transportation (PT) …
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Pedestrian detection and tracking for mobility on demand
… tracking system to be used aboard mobility on demand systems. Mobility on demand is a transportation paradigm in which a fleet of vehicles is shared among a community, with rides provided upon request. The proposed system is capable of robustly gathering pedestrian paths in space using 2D LiDAR …
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Potential for dairy exports to the UK post-brexit : bilateral partial equilibrium modeling in the presence of trade barriers
… the United States and the United Kingdom. Import demand systems were created to develop a model that estimates imports, exports, ending stocks, prices, consumption and production for the UK cheese and butter market. Three scenarios are created to consider the estimated effects of Brexit on the UK, …
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Dynamic incentive scheme for rental vehicle fleet management
Mobility on Demand is a new transportation paradigm aimed to provide sustainable transportation in urban settings with a fleet of electric vehicles. Usage scenarios prpopsed by Mobility on Demand systems must allow one-way rentals. However, one-way rentals bring significant challenges to fleet …
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Essays on Semi-parametric Bayesian Econometric Methods
… Chapter 1 applies a semi-parametric method to demand systems, and compares the abilities to recover the true elasticities of different approaches to linearly estimating the widely used Almost Ideal demand model, by either iteration or approximation. Chapter 2 co-authored with Dr. Melvyn Weeks …
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Green mobility Taipei City : with the arrival of mobility-on-demand system with ultra small electric vehicles
… etc. Electric vehicles (EVs) and Mobility-on-Demand systems are two of these technologies. With the advancement of battery technologies, EVs are become the next mainstream product for Automobile industry. Meanwhile, there are many new concepts about various alternative types of car ownership, …
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Modelling structural change in the U.S. demand for meat
Recent empirical research on meat demand has debated whether or not the effects of changing meat prices can explain all the observed changes in meat consumption patterns. This thesis provides a framework for modelling and testing for structural change using three commonly used demand system — a …
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Control and in-situ measurement of adaptive and reconfigurable RF systems.
Demand for wireless spectrum is at an all-time high and is anticipated to grow at an exponential rate for the foreseeable future. To meet this demand, systems will need to share limited spectral resources in an effective manner. Adaptive spectrum sharing is enabled by both smart spectral brokering …
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The United States copyright law dilemma: a synthesis of copyright applications that affect the use of digital print-on-demand technology
… as it applies to the use of POD's, print-on-demand systems, by education and business entities. This qualitative research instrument offers an explanation for the discrepancy between current copyright statutes and the application of these statutes by the US Courts toward regulating the "fair …
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ECONOMICS AND EMPOWERMENT: CATALYSTS OR COMPETITORS?
… the Indian Human Development Survey to test the demand systems implied by two competing frameworks: collective bargaining and the framework that rationalizes aggregate inefficient behavior. We find that although the implications of the Collective Hypothesis are rejected, those for the alternate …
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Househood demand for comodities in Zambia: an Emperical assessment in context of food insecurity
… is known on these factors and about how food demand differs across different income groups and across different regions and this household food demand is affected as food prices change. With organized information about responsiveness of heterogeneous consumer households to changes in prices …
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Transport demand in China : estimation, projection, and policy assessment
… and freight mobility, leading to greater energy demand and environmental impacts. In this dissertation I develop methods to characterize the evolution of passenger transport demand in a rapidly-developing country, in order to support projection and policy assessment. In Essay #1, I study the role …
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Ein Nachfragesystem für dynamische Mikrosimulationsmodelle
… Methode. Durch die Einbindung eines Nachfragesystems kann sowohl das Anwendungsgebiet eines Mikrosimulationsmodells erweitert als auch dessen potentielle Leistungsfähigkeit gesteigert werden. Die Arbeit hat im Wesentlichen die Beantwortung der Fragestellungen aus den folgenden zwei …
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Continuous DPM Monitoring in Underground Mine Environments: Demonstration of Potential Options in the Laboratory and Field
… such as design and operation of ventilation on demand systems, or engineering studies of new ventilation, exhaust treatment or other DPM controls. The work presented in this thesis considers three continuous monitors, two of which are already commercially available: Magee Scientific's AE33 black …
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