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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 20 of 35 for “"Partially Saturated"”.
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Pore Pressures in Partially Saturated Soils
Made available in DSpace on 2014-12-10T22:21:28Z (GMT). No. of bitstreams: 1 7114755.pdf: 4144484 bytes, checksum: 8c428c8b9808536d048776d1c080ae0b (MD5) Previous issue date: 1970
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Dispersive mixing in a partially saturated porous medium.
Massachusetts Institute of Technology. Dept. of Civil Engineering. Thesis. 1974. Ph.D.
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Synthesis of Partially Saturated Bicyclic Heteroaromatics: sp3-Enriched Scaffolds for Drug Discovery
… adaptable synthetic route for the synthesis of partially saturated bicyclic heteroaromatic scffolds (Figure i). The designed route takes advantage of the large chiral pool provided by amino acids, with each scaffold synthesised in just 4-6 steps from these readily available enantiopure starting …
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Improved numerical methods for modeling flow and transport processes in partially saturated porous media
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1989.
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Modeling the relation between suction, effective stress and shear strength in partially saturated granular media
… pore fluid in the form of pore pressure. In unsaturated soils, the coexistence of water and air results in negative pore pressure, which are termed "soil suction". A clear link between soil suction and effective stress has not yet been established. This research develops a model for linking …
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Finite Element Analysis of Nonlinear Consolidation
… is presented for the unified treatment of saturated and partially saturated soils. Two sources of nonlinear material behavior are identified. The nonlinear material behavior under fully drained condition is represented by an elasto-plastic material model formulated in terms of effective …
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Compaction and Cure of Resin Film Infusion Prepregs
… dimensional flow of resin through a deformable, partially saturated porous medium is studied. A nonlinear partial differential equation describing the spatial and temporal variation of the fiber volume fraction combining the continuity equation, Darcy's Law, and mat compressibility has been …
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Two-Dimensional Finite Element Analysis of Porous Geomaterials at Multikilobar Stress Levels
… and pore fluid pressures for fully- and partially-saturated porous media. The time dependent flow of the pore fluid is also calculated. An elastic-plastic strain-hardening cap model calculates the time-independent skeletal responses of the porous solids. This enables the code to model …
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Identities and Catalytic Functionalities of Reactive Hydrogen Species during Hydrogen Addition and Oxygen Removal Reactions of Carboxylic Acids, Carbonyls, and Phenols at Transition Metal-solvent Interfaces
… ring of guaiacol leads to the formation of partially saturated enol intermediates. H+ from the solvent catalyzes the tautomerization of the partially saturated enol, leading to the formation of its keto tautomer that either undergoes C-OCH3 bond cleavage or another H* addition to form …
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Methane Gas Hydrate Morphology and its Effect on the Stiffness and Damping of some Sediments
… from the free gas phase in almost fully water saturated conditions. Five<br/>sand specimens, with a range of hydrate contents from 10% to 40% were formed and tested in the gas<br/>hydrate resonant column (GHRC). Results from these tests were compared with previous results from<br/>tests where …
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Air Injection Technique to Mitigate Liquefaction beneath Shallow Foundations
… of foundations. A wider and more uniformly desaturated zone was achieved with increasing air injection pressure, but which concurrently increased the settlements that shallow foundations experienced. It was also found that most of the air could remain entrapped in partially saturated soil …
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Numerical modeling, characterization and monitoring of the seasonal behavior of expansive clays
… hydraulic and mechanical properties of partially saturated clay. This thesis presents an integrated study to measure and interpret long-term ground movements at a greenfield test site in Mustang Ridge (MR), Texas, adjacent to toll road SH130. The site is underlain by almost 12 m of high …
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Modelo constitutivo basado en la teoría de la plasticidad generalizada con la incorporación de parámetros de estado para arenas saturadas y no saturadas
… thesis is focused on constitutive modelling of saturated and partially saturated granular soils from state parameters point of view. The Generalized Plasticity constitutive equation has been extended in order to reproduce stress-strain behaviour of granular soils with a single set of intrinsic …
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Enzymatic activation of cytochrome P-450(cam)
… of the enzyme. Iron chlorin groups, which are partially saturated analogues of protoporphyrin IX, were substituted for the native heme in cytochrome P-450$\sb{\rm cam}$ and also rat liver cytochrome $b\sb5$, which served as a useful model for the more difficult reconstitution and subsequent …
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Expanded Byrne Model for Evaluating Seismic Compression
… to predict excess pore water pressure for saturated sands under cyclic loading. However, the model can also be used to predict seismic compression in dry or partially saturated clean sands, which is the focus of this research. The original Byrne (1991) model has two primary limitations. One …
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A channel subspace post-filtering approach to adaptive equalization
… inhomogeneities. For arrivals which are unsaturated or partially saturated, the fluctuations in ISI are dominated by the macro-multipath fluctuations resulting in correlated fluctuations between different taps of the sampled channel impulse response. Traditional recursive least squares …
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Collapse of stone column foundations due to inundation.
… encountered by foundation engineers involves partially saturated soils which possess considerable in-situ dry strength that is largely lost when the soils become wetted. Foundation design in such soils is difficult at best. In many cases, deep foundations may be required to transmit foundation …
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