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 4217 for “"stream"”.
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Down Stream [Appalachia]
Down Stream [Appalachia] is an immersive, interactive art installation that addresses themes of ecological preservation, conservation, and connectedness—illuminating the precarity of imperiled freshwater species in the Appalachian region. The exhibition is composed of reflective, refractive …
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Stream aufwuchs accumulation
… triphosphate, and diatoms) in experimental streams near Glen Lyn VA (Phase I) and in Stroubles Creek near Blacksburg VA (Phase II). Depopulation experiments carried out during Phase I supported my hypothesis that accumulation rates are greater in reference than in depopulated streams. The …
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Improving Design Guidance for In-Stream Structures Used in Stream Restoration
Vane-type in-stream structures and step pool storm conveyance (SPSC) are more ecologically friendly alternatives to traditional stream channel stabilization and stormwater conveyance techniques. Vane-type structures have been widely accepted as elements of stream restoration projects and are …
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Stream algorithms and architecture
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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Refurbishment value stream optimization
One of Company X's many services is to refurbish systems at regular intervals during their use. Quick turnaround times are of the utmost importance both to keep Company X's costs low and to ensure the systems are returned to perform their services in the field as rapidly as possible. This research …
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The role of forest stream corridor characteristics in influencing stream and riparian ecology
… PhD thesis seeks to consider conifer forestry stream corridor design in relation to both in-stream and riparian zone biodiversity and functioning. The contribution, availability and source of basal resources within varying corridor conditions are the focus of this project. This approach is …
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Trends in stream power and erosion at a suburban stream in Western New York
Streambank erosion is a highly damaging and prevalent nonpoint source pollution that impacts water quality, flow, and ecology. Urban watersheds are particularly sensitive due to a greater proportion of directly connected impervious land cover resulting in increased runoff into streams. Climate …
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Impacts of legacy mining on stream structural and functional processes in an urban stream
… how neutral mine drainage (NMD) influences urban streams. Past research on both urban streams and mine impacted streams has largely focused on characterizing streams using structural approaches although there has been an increase in literature on functional processes over the past decade. As urban …
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Macroinvertebrate drift along an elevational and stream size gradient in a southern Appalachian stream
… monthly at four sites on a southern Appalachian stream in order to examine spatial and temporal patterns along elevational and stream size gradients. Measurements consisted of four, one-hour samples corresponding to dawn, mid-day, dusk, and mid-night monthly for 14 months. On average, only 10% of …
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Stream ciphers and linear complexity
… the mathematical analysis of the security of stream ciphers. Firstly, we will introduce the background ofstream ciphers with their design principles and theoretical security from the information theory viewpoint. Then we will introduce thealgebraic tools for the analysis of linear recurring …
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Cryptanalysis of Selected Stream Ciphers
… some cryptanalytical results on a selection of stream ciphers. We have grouped theory and results into three main parts. The first part focuses on the FCSR-based constructions X-FCSR and F-FCSR-H v3. For the X-FCSR family of stream ciphers we perform a severe state recovery attack. This attack …
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Air - stream atomization of liquids,
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1945
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Cache optimizations for stream programs
… the number of memory accesses for the class of streaming applications, which are becoming increasingly prevalent in embedded, desktop and high-performance processing. A fully automated optimization algorithm is presented that reduces the memory bottleneck for stream applications developed in the …
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Stream temperature dynamics following riparian wildfire : effects of stream-subsurface interactions and standing dead trees
… objectives of this study were to address how stream temperature is influenced by (1) spatial variability in energy exchanges, (2) reach-scale stream-subsurface water interactions and (3) the net radiation dynamics associated with standing dead riparian vegetation. Stream temperature, riparian …
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An examination of stream reaeration coefficients and hydraulic conditions in a pool-and-riffle stream
… as a first-order reaction and is known as stream reaeration. The first-order rate coefficient or stream reaeration coefficient is a necessary input parameter to stream water-quality models and is partially controlled by the hydraulic conditions of the stream. These coefficients may vary for …
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Evaluating Watershed and Stream-Channel Drivers of In-Stream Turbidity in Virginia and North Carolina
… have not always been able to reliably predict in-stream sediment loads. In this study, two scales, watershed and site level, are used to understand where sediment transported in-stream is being produced. At the watershed scale, USLE was used to estimate sediment yield and then different factors …
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The Gulf Stream: along-stream evolution of volume transport and water properties observed by underwater gliders
The Gulf Stream, the western boundary current of the subtropical North Atlantic, plays a key role in the Earth’s climate system with its poleward volume and heat transports being major components of the upper limb of the Atlantic Meridional Overturning Circulation. Extensive observations collected …
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Portrait of Your Stream: Development and Assessment of a Stream Ecology Program for Middle-School Student
Portrait of Your Stream (POYS) is a stream ecology and student action program designed for use with middle-school students. The program is correlated with learning cycle pedagogical methods emphasizing student-centered lessons and activities in both classroom and outdoor settings. Implementation of …
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