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 20 of 1207 for “"Salinity"”.
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Adapting to salinity: The effects of salinity on population structure and offspring survival in Lucania parva
Adaptation to salinity is an important driving force in the evolution in teleost fishes. Some speciose groups such as minnows and characids are found predominantly in fresh water, while other groups such as tunas and wrasses are found predominantly in marine habitats. Euryhaline groups, such as …
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Carbonate chemistry in high salinity waters
… diagrams for the carbonate system in high salinity waters, i.e. for single aqueous phase, solid-aqueous phase, gasaqueous phase and solid-aqueous-gas phases. Such diagrams have been developed for low salinity waters, viz. Deffeyes and Caldwell-Lawrence diagrams and modifications of these.
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Membrane distillation for high salinity desalination
… specific energy consumption with increase in salinity. Under high salinity conditions, the relative significance of irreversible losses is lower. Results indicate that MSVMD systems can be as efficient as a conventional MSF system, while using reasonable membrane areas and for a wide range of …
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Salinity Tolerance of Flowering Rush, Butomus umbellatus
… to estuarine areas, documentation on the salinity tolerance of flowering rush is scarce. Currently, information is limited to anecdotal reports suggesting intolerance to saline conditions. A better understanding of the osmotic tolerance of this species is essential to providing insight …
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Denitrification Under Salinity Stress in Biofilm Reactors
… etc. To improve the process’ performance under salinity inhibition, biofilm reactors could represent an elegant strategy, but a systematic analysis focusing on the reactor system under salinity stress is needed for their optimisation. Moreover, since the electron donors available for the process …
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Temperature and salinity variability in thermohaline staircase layers
… the first continuous time series of temperature, salinity and velocity profiles in a thermohaline staircase. Variations in the intensity of layering and the evolution of layer properties are well documented during the 4.3 month record. Such staircases are the result of strong salt fingering at the …
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Drought and salinity tolerance of cool-season turfgrasses
… every 3 weeks until reaching the next targeted salinity level. The final targeted salinity level was 22 dS·m-1. Grasses were grown under each of the 4 or 5 targeted salinity levels for a period of 3 weeks. Clipping yield reduction, overall turf quality, leaf firing, and density were determined …
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Salinity tolerance and osmoregulation in several subtropical decapods
This study investigated salinity tolerances and osmoregulatory strategies of several subtropical brachyuran mangrove crabs and an anomuran prawn, with particular reference to Uca vocans, Uca urvillei, Uca chlorophthalmus, Uca annulipes, Dotilla fenestrata, Macrophthalmus depressus, Macrophthalmus …
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Temperature and salinity variability in thermohaline staircase layers
… the first continuous time series of temperature, salinity and velocity profiles in a thermohaline staircase. Variations in the intensity of layering and the evolution of layer properties are well documented during the 4.3 month record. Such staircases are the result of strong salt fingering at the …
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Mechanistic Modeling, Design, and Optimization of Low Salinity Waterflooding
Low Salinity Waterflooding (LSW) is an emerging attractive enhanced oil recovery (EOR) method because of its oil recovery performance and relatively simple, environmentally friendly implementation, when compared with conventional high salinity waterflooding and EOR approaches. Most studies on the …
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Diffusion of momentum and salinity in Lake Maracaibo, Venezuela
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Geology and Geophysics, 1968.
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Control of salinity intrusion caused by sea level rise
… Specific engineering solutions to control salinity intrusion are studied. Structure measures such as construction of tidal barriers, tidal locks, and through long term stream flow augmentation are investigated for their suitability. Quantification of the extent of the impacts is …
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Gulf Stream temperature, salinity and transport during the last millennium
… Ice Age (LIA: ~1200-1850 A.D.), equivalent to a salinity increase of 0.8-1.5 psu. On the Great Bahama Bank, where smface waters are influenced by the North Atlantic subtropical gyre, δ18Ow increased by 0.3% during the last 200 years. Although a portion (~0.1%) of this shift may be an artifact of …
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SOIL SALINITY AND SODICITY OF GALVESTON AND PELICAN ISLANDS, TEXAS
… the island with seawater, causing elevated soil salinity levels that killed much of the vegetation on the island, including tens of thousands of trees. Residual salinity in soils and groundwater has hampered vegetation re-establishment in some areas.</p> <p>This project aims to create a map …
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Soil Salinity Study in Northern Great Plains Sodium Affected Soil
… (0.75-0.90 μm) were very sensitive to soil salinity; 3) EC prediction model using all 3 season (spring, summer and fall) images was better on state wide validation dataset compared to individual season model. Finally, in eastern South Dakota, the model predicted that from 2008 to 2012, EC …
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Relationship between coastal vegetation biomass with elevation and salinity gradients
… on a variety of abiotic factors, including salinity, flooding stress, and nutrient availability. Recovery of marsh vegetation from damage caused by storm surges depends in large part on characteristics of the dominant plants (e.g., biomass allocation to belowground parts). In this study, I …
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