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 16 of 16 for “"Surface Systems"”.
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Human-machine interaction for unmanned surface systems
… for human-robot teams operating as unmanned surface systems (USS). An pilot role was found to be the most prevalent in the USS-related literature but additional human roles were determined to likely be necessary (e.g., Mission Specialist} though were not documented; interface needs have not …
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Developing a Usable API for Multi-Surface Systems
A multi-surface system brings together a variety of different devices – such as a tabletop, tablet, mobile phone and wall display – into a single cohesive system. This integration allows users to take advantage of the unique capabilities of each device in ways that would not be possible using those …
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Techniques for analyzing planar, periodic, frequency selective surface systems
… infinite, planar, periodic frequency selective surfaces (FSS) are thoroughly reviewed. Particular emphasis is placed on practical procedures for implementing the analysis for the case of subdomain basis functions. In this presentation, the focus is placed on concepts which will provide the …
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It's Not a SKZCAM! Accurate Surface Chemistry at Low Cost
… storage requires a deep understanding of their surface chemistry. Simulations provide the needed atomic-scale insights, allowing for fundamental quantities like the adsorption energy and oxygen vacancy formation energy to be calculated. Consistently achieving accurate predictions will require …
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Analysis of sustainable water supply options for Kuwait
… are also considered, including both aquifer and surface systems. Case studies are presented which demonstrate the potential for indirect potable use of Kuwait's highly purified wastewater, and the importance of a storage reservoir as part of such a system. In order to assess the feasibility of …
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Havana ruins : post-embargo habitación regenerative prototypes
… becomes repurposed as a new medium for material systems. This reuse of brick translates into facade, screen and surface systems that compose a new regenerative typology for Havana.
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The effects of upstream Natural Flood Management on urban surface drainage performance
… these same interventions could also mitigate surface flood risk in downstream urban areas. By moderating water levels in receiving watercourses, upstream NFM could promote free discharge from urban drainage outfalls and thereby improve local surface drainage performance. A novel modelling …
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Photoemission studies of interface effects on thin film properties
… bilayer period. A comparison among the systems reveals a phase reversal and an amplitude deviation in the stability temperatures. For Pb/In- 3 x 3 /Si(111), films made of odd numbers of atomic layers are observed to be more stable than the even ones, but this trend is reversed for the …
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An Investigation of Electrostatic Interactions Between Organically Functionalized Silica Particles, Surfaces, and Metal Ions
… between silica particles and either coated surfaces or metal ions. This work has two objectives: to begin a preliminary investigation into particle-surface systems that may be ideal for further investigation as a sensor and to investigate metal-ligand interactions for the potential use of …
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Land surface response to climate change forcing over Southern Africa
The land surface is important to the climate system for the exchanges of moisture, momentum and heat. Momentum, radiation, and sensible and latent heat fluxes between the atmosphere and the surface will likely affect atmospheric dynamics, temperature, precipitation and humidity fields (Sato et ai., …
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MAX phases as an electrocatalyst support material: a DFT study
… support material, a MAX phase particle will have surfaces present. Due to the layered structure of the MAX phases, multiple terminations of (0 0 0 1) surfaces could be possible, which were investigated. It was shown that terminations where the Ti-C cage structure remained intact produced the …
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First-principles study of doped hematite surfaces for photoelectrochemical water splitting
… is by doping with other elements. In particular, surface doping is proved to be more beneficial than bulk doping because it reduces the distance moved by the charge carriers from inside the bulk to the surface where they are required for interfacial transfer. In this study first-principles …
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Selective excitation of adsorbate vibrations on dissipative surfaces
… mediated chemistry"). For adsorbates on surfaces it has been theoretically predicted that IR preexcitation will lead to higher UV/Vis photodesorption yields and larger cross sections for other photoreactions. In a recent experiment, IR-mediated desorption of molecular hydrogen from a …
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Surface structure and composition determination by low-energy electron scattering and Monte Carlo simulations
<p>This thesis reports on surface and surface alloy structural and compositional determination with low-energy electron scattering and Monte Carlo simulations. Low-energy electron diffraction (LEED) technique and the newly developed low-energy electron microscopy (LEEM) IV technique are used to …
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Ultrafast Dynamics and Interactions During Growth at Surfaces
… technique capable of studying nanoscopic surface dynamics in thermal equilibrium. The energy resolution, which greatly exceeds that of alternative methods, makes it possible to probe motion on picosecond to nanosecond timescales. The present thesis is concerned with 3HeSE measurements and …
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Feasibility of Ellipsometric Sensor Development for Use During PECVD SiOx Coated Polymer Product Manufacturing
… industries, like food packaging. Nano Scale Surface Systems, Inc. (NS3), a company which coats polymers with ceramic oxides like SiO2 through a process known as plasma enhanced chemical vapor deposition (PECVD), was interested in the feasibility of an in line measurement system for monitoring …