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 50 for “"vapor transport"”.
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Daily divergence of water vapor transport
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1968.
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Analysis of synoptic scale water vapor transport
Massachusetts Institute of Technology. Dept. of Meteorology. Thesis. 1967. M.S.
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Vapor Transport Deposition for Perovskite Solar Cells
… solar cells move closer to commercialization, vapor transport deposition (VTD) has emerged as one of the potential routes for large-scale film growth of photoactive and charge transport layers for these solar cells. As a low-cost alternative to thermal evaporation, VTD has the potential to …
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Studies of water vapor transport and sorption in wood
… with the evaluation of measurements of water vapor transport and sorption in wood. It mainly concerns measurements of the weight response of a sample after a step change in relative humidity. The thesis consists of an introduction and eight papers. The eight papers have the following contents: …
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Desalination of water by vapor transport through hydrophobic nanopores
… a new approach is proposed for desalination by vapor-phase transport through hydrophobic nanopores in an isothermal condition. Hydrophobic nanopores flanked by vapor-interfaces with a submicron gap provide a complete barrier for salt while behaving as highly permeable medium for water. We first …
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Atmospheric water vapor transport and the hydrology of North America.
Massachusetts Institute of Technology. Dept. of Meteorology. Thesis. 1966. Ph.D.
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Controlled formation of submicron TiB₂ by vapor transport assisted reaction of titanium and boron
Includes bibliographical references (pages 106-109).
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Interannual variablility in atmosphere water vapor transport over north European and west African regions
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1996.
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Superconductivity and low temperature properties of niobium diselenide single crystals grown by direct vapor transport
… purity single crystals of 2H-NbSe₂ by a direct vapor transport (DVT) method was developed. Single crystal growth rate and the degree of crystal perfection were studied as deviations from stoichiometry were made over the compositional range of Nb<sub>0.95</sub>Se₂ to Nb<sub>1.05</sub>Se₂. Single …
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Effects of vapor transport and gravity on the self propagating high temperature synthesis of titanium diboride, The
Includes bibliographical references (pages 174-180).
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The Smallest Base and Precious Metal Deposits in the World: Vapor Transport and deposition of Co-Cu-Sn-Ag alloys in vesicles
… inferred that the metals for these alloys were transported (in part) as chloride complexes, and that the metal ratios in the alloys may be a function of S/Cl. Alloy compositions in each system are extremely heterogeneous with Co concentrations from 1% to 94%, Cu from 2% to 89%, Sn from 1% to 22% …
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Combined Role of Low- and Mid-level Jets and Atmospheric Rivers on Winter Precipitation in the Eastern Sierra Nevada
Deep, narrow corridors of concentrated water vapor transport referred to as “atmospheric rivers” (ARs) are an important contributor to extreme precipitation in the western United States. This study takes a closer look at the climatology of AR events that generate precipitation on the …
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The effects of capillarity on photonic crystal selective emitters
… phenomenon, in the form of surface diffusion, vapor transport, and grain boundary grooving, this thesis seeks to understand its consequences and attempts to pinpoint methodologies that may prevent it. It was shown that while grain boundary grooves have a negligible effect on photonic crystal …
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Latent heat fluxes through nano-engineered porous materials
… and breatheability in polymer barriers. Liquid evaporation and transport of resulting vapor through truss voids (pores) cools surfaces covered by the barriers, suggesting the possibility for simultaneous protection of humans from mechanical and thermal stresses. Design of real systems employing …
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Fabricating and Tailoring Halide Perovskites for Photovoltaic Applications
… In this work we developed alternative, vapor-based fabrication techniques, based on manufacturing-compatible, safe, rapid and scalable processes, that have the potential to improve material stability and efficiency. Vapor Transport Deposition (VTD) is investigated as a promising …
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Exploring valleytronics in 2D transition metal dichalcogenides
… tungsten disulfide (WS₂) synthesized by chemical vapor transport (CVT). This novel method of bottom-up growth relies on halide-driven vapor transport commonly utilized in bulk crystal growth. Using a small amount of sodium chloride salt as a source of chlorine, non-volatile WS₂ can react to form …
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The Influence of the North Atlantic Subtropical High on Atmospheric Rivers Over the Eastern United States
… are a major mechanism for meridional moisture transport often connected to heavy precipitation and mid-latitude troughs. The NASH, a semi-permanent anticyclone over the subtropical North Atlantic Ocean, has been shown to be significantly influential on precipitation variability over the …
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Synthesis, Superstructure, Vacancy-Ordering of Intercalated Transition Metal Dichalcogenides
… has been performed by the method of chemical vapor transport, using iodine as a transporting agent. X-ray diffraction may reveal superlattice reflections, which then indicates the existence of a superstructure. An eightfold superstructure has been found for 6R-CuxTa1+yS2 (x = 0.237, y = 0; x = …
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An Investigation into Topological Crystals and Flat Band Systems
… state reactions, flux growths, and chemical vapor transport growths. For these systems, the predicted physics, as well as the design, execution, and characterization of quantum material synthesis will be presented.
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Multi-stage adsorption-based atmospheric water harvesting
… of water that is present in the air either as vapor or small water droplets. Adsorption-based AWH uses adsorbent materials to collect water vapor from the air, the advantage being that the adsorbents can be regenerated by low-grade thermal sources, and condensation can occur at ambient …
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