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 26 for “"emission model"”.
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Finalità, strategie e strumenti per lo sviluppo di un modello di calcolo delle emissioni degli inquinanti da traffico in ambiente urbano
… proposes the construction of an instantaneous emission model, then applied to the Torino’s urban context. The work has been focused on the analysis of the different parameters on the pollutant emissions and the construction of computer tools and abacus for the energetic and environmental …
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Modeling VOCs Emissions from Multi-layered Structural Insulated Panels(SIPs)
… the interiors of new houses emit VOCs. These emissions are a probable cause of acute health effects and discomfort among occupants. Ventilation is another determinant of indoor air quality in houses, because it serves as the primary mechanism for removal of gaseous contaminants generated …
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A transportation approach to urban diffusion modeling
… a versatile traffic assignment computer program model with an urban diffusion computer program model. TAPAP assesses the air quality impact of transportation policies such as extra lanes to an urban freeway, construction adding of new roadways, changes in auto emission standards, and exclusive …
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Development of a Microscopic Emission Modeling Framework for On-Road Vehicles
… since it is a major vehicle fuel consumption and emissions contributor. These emissions are considered a major environmental threat. Consequently, decision makers desperately need tools that can estimate vehicle emissions accurately to quantify the impact of transportation operational projects on …
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Utilizing High Resolution Data to Identify Minimum Vehicle Emissions Cases Considering Platoons and EVP
… accommodation algorithm that minimizes vehicle emissions. The algorithm was developed and implemented in the AnyLogic framework, and was validated by comparing it to the results of prior research. A four-module flowchart was developed to analyze the traffic data and to identify platoons. The …
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Pilot Validation of VSMOKE with Implications for Smoke Management Regulations
… of: (1) a pilot validation of the smoke emission model VSMOKE-GIS; (2) review of southeastern states' smoke management guidelines (SMG); and (3) a geographic analysis of Virginian's current SMG. VSMOKE-GIS showed good accuracy in predicting the PM2.5 concentration and location of the …
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An Improved dipole-moment model based on near-field scanning for characterizing near-field coupling and far-field radiation from an IC
… in wireless platform design. The accurate noise model of integrated circuits (ICs) is needed to help designers to diagnose and predict RFI problems. In this dissertation, an improved IC radiated emission model based on near-field measurements is proposed. The regularization technique and the …
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Spectroscopic studies of field-induced electron emission from isolated microstructures
… been undertaken into the field induced electron emission (FIEE) mechanism that occurs at microscopically localised `sites' on uncoated and dielectric coated metallic electrodes. These processes have been investigated using two dedicated experimental systems that were developed for this study. The …
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Field emission from silicon
… applications in various fields such as field emission flat panel displays, multiple electron-beam lithography, ion propulsion/micro-thrusters, radio frequency source, information storage technology, and electronic cooling. Silicon is an attractive material for building electron field emitters. …
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Geometrical Optimization of Planar Nano Vacuum Channel Transistors
Nano vacuum devices have demonstrated tunneling emission in low voltages due to their 10 nm scale gaps that create order 10 GV/m electric fields with just 10 V. The small gaps give rise to ballistic transport through the channel, which combined with the low capacitances of the electrodes, gives …
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Models and algorithms for the optimization of traffic flows and emissions using dynamic routing and pricing
… is centered on the development and evaluation of models and algorithms for the optimization of traffic flows and emissions via routing and pricing in dynamic traffic networks. A set of problems that arise in this context are studied. These include: (1) the development of a probabilistic approach …
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The Self-Sustaining Processes in a Hollow Cathode to Produce a Steady Electron Emission
… two major characteristics are that the electron emission of the cathode reaches a self-sustaining mode, ion bombardment of the low work-function materials. This research proposes the theory that the self-sustaining mode is a complex result of a mix of ionization states (singly, doubly, ...), the …
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PASSIVE MICROWAVE SATELLITE SNOW OBSERVATIONS FOR HYDROLOGIC APPLICATIONS
… wet snow using a loosely-coupled snow-emission model. The results over an area approximately the size of a microwave pixel found a near-linear relationship between the microwave signal response and the percent area with wet snow present. These results were confirmed by evaluating actual …
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Continuum Kinetic Simulations of Plasma Sheaths and Instabilities
… collisions, ionization, and physics-based wall emission, and (iii) theoretical and numerical studies of the linear growth and nonlinear saturation of the kinetic Weibel instability, including its role in plasma sheaths. The continuum kinetic algorithm has been shown to compare well with …
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Network-wide Assessment of Eco-Cooperative Adaptive Cruise Control Systems on Freeway and Arterial Facilities
… attempt to minimize vehicle fuel consumption and emission levels by controlling vehicle speed and acceleration levels. The majority of previous research efforts developed and applied Eco-CACC systems on either freeway or signalized intersections independently on simple and small transportation …
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Modeling the Performance and Emissions of British Gas/Lurgi-Based Integrated Gasification Combined Cycle Systems
… Characterization of the performance and emissions of the technology must be made comparable to conventional and other advanced alternatives. This study deals with the design and implementation of a performance and emission model for a gasification based power system fueled with municipal …
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Development of an accurate 3D Monte Carlo broadband atmospheric radiative transfer model
… space. The remote sensing algorithms and dynamic models used to study and observe earth's atmosphere all parameterize radiative transfer with approximations that reduce or neglect horizontal variation of the radiation field, even in the presence of clouds. Despite having complete knowledge of the …
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Modeling Light Duty Vehicle Emissions Based on Instantaneous Speed and Acceleration Levels
This dissertation develops a framework for modeling vehicle emissions microscopically. In addition, the framework is utilized to develop the VT-Micro model using a number of data sources. Key input variables to the VT-Micro model include instantaneous vehicle speed and acceleration levels. …
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Emissions of Phthalate Plasticizer from Polymeric Building Materials
… contain a vast array of contaminating sources. Emissions from these sources produce contaminant concentrations that are substantially higher indoors than outside. Because we spend most of our time indoors, exposure to indoor pollutants may be orders-of-magnitude greater than that experienced …
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Effects of alignment on CO2 emissions from the construction and use phases of highway infrastructure
… change, manifesting in the monitoring of C02 emissions from all activities within all industrial sectors, with construction projects being no exception. The concept of Whole Life Carbon (WLC) involves understanding the carbon impact of an infrastructure project from its beginning, through its …
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