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 18 of 18 for “"Water modeling"”.
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Protein and Water Modeling in Computer-Aided Drug Discovery
… is continuously evolving to improve protein modeling, a crucial step in the drug discovery process. However, limitations exist in how CADD accounts for the various configurations a protein can adopt due to different rotamer and protonation states of its residues. This thesis explores …
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Water modeling the solid oxide membrane electrolysis with rotating cathode process
… dioxide particles, videos and pictures of the water were taken and analyzed to find how to create a large amount of shear between the ingot and the fluid. Out of the speeds tested, a rotation rate of 900Ê»/s for the ingot proved to create the most shear, and therefore the shear between the …
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Evaluating Shallow-Flow Rock Structures as Scour Countermeasures at Bridges
… in a two-phase effort beginning with numerical modeling and ending with field verification of model findings. As part of phase one, two finite element meshes were created in Surface-water Modeling Software (SMS) and analyzed with FESWMS-2DH. Second, field studies were conducted and a preliminary …
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Improving Steering Module Efficiency for Incremental Loading Finite Element Numeric Models
… numeric models to calculate and predict water levels and current patterns for rivers, bays, and other bodies of water. This computation often involves an iterative process known as incremental loading that can cause frustration and consume a lot of time. Although the steering module in …
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The use of a water quality model to evaluate the impacts of combined sewer overflows on the lower Hudson River
… long been recognized as a significant source of water pollution. While many sources of water pollution have been controlled over the past 20 years, CSOs continue to be a main environmental concern in several areas, especially in old cities. In the past, most CSO research focused on the CSO …
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Water quality and sedimentation implications of installing a hydroelectric dam on the Río Baker in Chilean Patagonia
… that newly installed impoundments alter the water quality of the original riverine system. Often temperatures, dissolved oxygen levels, and sediment loads in the reservoir and outflowing water are entirely different from those in the original free-flowing river; these differences alter …
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Refining and Expanding the Feature Stamping Process
… Christensen implemented a tool in the Surface-water Modeling System (SMS) software package for integrating man-made geometric features into surveyed terrain data. He called this process feature stamping. While Christensen's feature stamping algorithms decrease the time and effort required to …
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Hydrodynamic and sediment transport modeling of deltaic sediment processes
… and the delta was developed, using the Surface Water Modeling System (SMS) software package. Calibration and validation of the model were performed, using data collected during field surveys and from available Atchafalaya River archived flow, suspended sediment, and dredging records. In a test …
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Geochemical modeling-based prediction of water-rock interaction during aquifer storage and recovery utilizing selected Colorado Front Range aquifers
… Similarly, compositional analyses from domestic water well samples, including major anions and cations and selected metals, were used as generalized representations of native water from each formation of interest. Finally, compositional data from treated city water was obtained and used as a …
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Incipient motion of mixed sediment load on the Rio Chama
… to adjust. When these are modified to manage water resources for human needs, the ecosystem that relied on them is often negatively impacted. The river that once knew a specific dynamic equilibrium is forced to change. The result is usually changes in hydraulic geometry, a decrease in …
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In the Zone: the Effects of Soil Pipes and Dunes on Hyporheic and Riparian Zone Hydraulics and Biogeochemistry
… excess nitrate and other pollutants into our waterways. Here, this dissertation seeks to understand the physical and biogeochemical processes which attenuate pollutants in stream corridors. The focus is hyporheic zones which form the interface between surface water and groundwater below and …
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Importance of Self-Interaction Correction in Hydrogen-Bonded Water Clusters and Water-Ion Clusters
… correction (FLOSIC) method to study neutral water complexes and interaction of ions with water clusters. The strongly constrained and appropriately normed (SCAN) density functional approximation (DFA) has been found to give the correct energy ordering of low-lying isomers of water hexamers, …
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Oxy-combustion of High Water Content Fuels
… of combustion - direct combustion of high water content fuels. Due to the high water content in the fuels, they may not burn under air-fired conditions. Therefore, oxy-combustion is applied. Three applications of this concept in power generation are proposed - direct steam generation for …
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Virtual water storage and flows within the continental United States
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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Evaluation of Iron Corrosion Release Models for Water Distribution Systems
Customer complaints of red water problems remain to be a frequent occurrence for water utilities. While material sources may vary, it is generally accepted that iron rust resulting from corrosion of iron based pipes is the predominant cause of red water issues. Recent efforts have lead to the …
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A GEOCHEMICAL MODEL FOR PREDICTING CORROSION- SCALE DISSOLUTION AND PHASE TRANSFORMATIONS IN DRINKING WATER DISTRIBUTION SYSTEMS
… dissolution and solid phase transformations in water distribution systems for varying water chemistry conditions and corrosion scale compositions. The equilibrium model is developed in PhreeqC.v.2.16.03 with reactions and thermodynamic constants validated by comparing simulation results with …
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Nitrification Investigation And Modeling In The Chloraminated Drinking Water Distribution System
… nitrification in chloraminated drinking water distribution systems in a one and a half year field study. Seven finished waters were produced from different treatment processes and distributed to eighteen pilot distribution systems (PDSs) that were made pipes taken from actual distribution …