subject:(stream)

1. Backman, Nathan John. C-MR: Continuous Execution of MapReduce Workflows for Stream Processing.

Degree: PhD, Computer Science, 2013, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:320474/

► Data processing frameworks provide application programmers an interface to manipulate and analyze data. This thesis studies a novel parallel stream processing model, designed for workflow-based… (more)

▼ Data processing frameworks provide application programmers an interface to manipulate and analyze data. This thesis studies a novel parallel stream processing model, designed for workflow-based data processing frameworks, that leverages application performance requirements to motivate the flexible scheduling and fine-grained allocation of data to computing nodes. We feature this processing model through the design and implementation of the Continuous-MapReduce (C-MR) data processing framework. C-MR abstracts away the complexities of parallel stream processing and workflow scheduling while providing the simple and familiar MapReduce programming interface with the addition of stream window semantics. Its novel processing model enables: 1) fine-grained, workflow-wide load balancing across computing nodes; 2) the evolving application of data and task parallelism models as guided by application performance requirements; and 3) a novel scheduling framework which supports gradual transitions between scheduling policies relative to application performance and/or resource availability. This work explores the potential of the C-MR processing model by studying our single-host implementation of C-MR that supports parallel execution on non-dedicated and heterogeneous computing nodes (both multi-core CPUs and GPUs). We then study this processing model through the implementation of a distributed version of C-MR that supports execution on multiple hosts. This endeavor involved the generalizable strategy of employing hierarchical instances of the C-MR processing model while requiring modifications to the data acquisition and load balancing strategies. Experimental results from these studies show that the C-MR processing model can effectively support the continuous execution of workflows of MapReduce jobs for stream processing while being resilient to stream and resource fluctuations due to the processing model's flexibility and diversification of processing responsibilities. Advisors/Committee Members: Cetintemel, Ugur (Director), Fonseca, Rodrigo (Reader), Zdonik, Stanley (Reader).

Subjects/Keywords: Stream processing

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APA (6^th Edition):

Backman, N. J. (2013). C-MR: Continuous Execution of MapReduce Workflows for Stream Processing. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:320474/

Chicago Manual of Style (16^th Edition):

Backman, Nathan John. “C-MR: Continuous Execution of MapReduce Workflows for Stream Processing.” 2013. Doctoral Dissertation, Brown University. Accessed February 28, 2021. https://repository.library.brown.edu/studio/item/bdr:320474/.

MLA Handbook (7^th Edition):

Backman, Nathan John. “C-MR: Continuous Execution of MapReduce Workflows for Stream Processing.” 2013. Web. 28 Feb 2021.

Vancouver:

Backman NJ. C-MR: Continuous Execution of MapReduce Workflows for Stream Processing. [Internet] [Doctoral dissertation]. Brown University; 2013. [cited 2021 Feb 28]. Available from: https://repository.library.brown.edu/studio/item/bdr:320474/.

Council of Science Editors:

Backman NJ. C-MR: Continuous Execution of MapReduce Workflows for Stream Processing. [Doctoral Dissertation]. Brown University; 2013. Available from: https://repository.library.brown.edu/studio/item/bdr:320474/

2. Papaemmanouil, Olga. An Extensible Overlay Infrastructure for Wide-Area Stream Processing and Dissemination.

Degree: PhD, Computer Science, 2009, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:76/

► The confluence of ubiquitous, high-performance networking and increased availability of online information has led to the emergence of a new class of large-scale stream processing… (more)

Subjects/Keywords: Stream Processing

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APA (6^th Edition):

Papaemmanouil, O. (2009). An Extensible Overlay Infrastructure for Wide-Area Stream Processing and Dissemination. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:76/

Chicago Manual of Style (16^th Edition):

Papaemmanouil, Olga. “An Extensible Overlay Infrastructure for Wide-Area Stream Processing and Dissemination.” 2009. Doctoral Dissertation, Brown University. Accessed February 28, 2021. https://repository.library.brown.edu/studio/item/bdr:76/.

MLA Handbook (7^th Edition):

Papaemmanouil, Olga. “An Extensible Overlay Infrastructure for Wide-Area Stream Processing and Dissemination.” 2009. Web. 28 Feb 2021.

Vancouver:

Papaemmanouil O. An Extensible Overlay Infrastructure for Wide-Area Stream Processing and Dissemination. [Internet] [Doctoral dissertation]. Brown University; 2009. [cited 2021 Feb 28]. Available from: https://repository.library.brown.edu/studio/item/bdr:76/.

Council of Science Editors:

Papaemmanouil O. An Extensible Overlay Infrastructure for Wide-Area Stream Processing and Dissemination. [Doctoral Dissertation]. Brown University; 2009. Available from: https://repository.library.brown.edu/studio/item/bdr:76/

University of Notre Dame

3. Arial Joy Shogren. The Transport, Retention, and Fate of Novel Materials in Flowing Waters</h1>.

Degree: Biological Sciences, 2018, University of Notre Dame

URL: https://curate.nd.edu/show/xp68kd20n8k

► Historically, stream ecology was formed on the basis of measuring how much organic matter rivers move downstream, and the “processing continuum” as this organic… (more)

Subjects/Keywords: Stream Ecology

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APA (6^th Edition):

Shogren, A. J. (2018). The Transport, Retention, and Fate of Novel Materials in Flowing Waters</h1>. (Thesis). University of Notre Dame. Retrieved from https://curate.nd.edu/show/xp68kd20n8k

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Shogren, Arial Joy. “The Transport, Retention, and Fate of Novel Materials in Flowing Waters</h1>.” 2018. Thesis, University of Notre Dame. Accessed February 28, 2021. https://curate.nd.edu/show/xp68kd20n8k.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Shogren, Arial Joy. “The Transport, Retention, and Fate of Novel Materials in Flowing Waters</h1>.” 2018. Web. 28 Feb 2021.

Vancouver:

Shogren AJ. The Transport, Retention, and Fate of Novel Materials in Flowing Waters</h1>. [Internet] [Thesis]. University of Notre Dame; 2018. [cited 2021 Feb 28]. Available from: https://curate.nd.edu/show/xp68kd20n8k.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shogren AJ. The Transport, Retention, and Fate of Novel Materials in Flowing Waters</h1>. [Thesis]. University of Notre Dame; 2018. Available from: https://curate.nd.edu/show/xp68kd20n8k

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Ahmad, Yanif. Pulse: Database Support for Efficient Query Processing Of Temporal Polynomial Models.

Degree: PhD, Computer Science, 2009, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:74/

► This thesis investigates the practicality and utility of mathematical models to represent continuous and occasionally unavailable data stream attributes, and processing relational-style queries in a… (more)

▼ This thesis investigates the practicality and utility of mathematical models to represent continuous and occasionally unavailable data stream attributes, and processing relational-style queries in a stream processing engine directly on these models. We present Pulse, a framework for processing continuous queries over stream attributes modeled as piecewise polynomial functions. We use piece-wise polynomials to provide a compact, approximate representation of the input dataset and provide query language extensions for users to specify precision bounds to control this approximation. Pulse represents queries as simultaneous equation systems for a variety of relational operators including filters, joins and standard aggregates. In the stream context, we continually solve these equation systems as new data arrives into the system. We have implemented Pulse on top of the Borealis stream processing engine and evaluated it on two real-world datasets from financial and moving object applications. Pulse is able to achieve significant performance improvements by processing queries directly on the mathematical representation of these polynomials, in comparison to standard tuple-based stream processing, thereby demonstrating the viability of our system in the face of having to meet precision requirements. In addition to our primary contribution of describing the core design and architecture of Pulse, this thesis presents a selectivity estimator and a multi-query optimizer to scale query processing capabilities. Our selectivity estimator uses histograms defined on a parameter space of polynomial coefficients for estimation, passing selectivities to our multi-query optimizer which may then determine how to construct a global query plan that shares work across individual queries. We evaluate these components on both a synthetic dataset and a financial dataset. Our experiments show that our optimization mechanisms provide significant reductions in processing overhead, and that our estimation algorithm provides an accurate and low overhead estimator for selective operators, that can be enhanced by sampling, while also being a general technique that can handle operators such as min and max aggregates, where sampling is known to be inaccurate. Advisors/Committee Members: Cetintemel, Ugur (director), Zdonik, Stanley (reader), Jannotti, John (reader), Madden, Samuel (reader).

Subjects/Keywords: Data stream processing

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APA (6^th Edition):

Ahmad, Y. (2009). Pulse: Database Support for Efficient Query Processing Of Temporal Polynomial Models. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:74/

Chicago Manual of Style (16^th Edition):

Ahmad, Yanif. “Pulse: Database Support for Efficient Query Processing Of Temporal Polynomial Models.” 2009. Doctoral Dissertation, Brown University. Accessed February 28, 2021. https://repository.library.brown.edu/studio/item/bdr:74/.

MLA Handbook (7^th Edition):

Ahmad, Yanif. “Pulse: Database Support for Efficient Query Processing Of Temporal Polynomial Models.” 2009. Web. 28 Feb 2021.

Vancouver:

Ahmad Y. Pulse: Database Support for Efficient Query Processing Of Temporal Polynomial Models. [Internet] [Doctoral dissertation]. Brown University; 2009. [cited 2021 Feb 28]. Available from: https://repository.library.brown.edu/studio/item/bdr:74/.

Council of Science Editors:

Ahmad Y. Pulse: Database Support for Efficient Query Processing Of Temporal Polynomial Models. [Doctoral Dissertation]. Brown University; 2009. Available from: https://repository.library.brown.edu/studio/item/bdr:74/

California State University – East Bay

5. Beitz, Pamela. A Multi-Tiered Catchment Analysis of Upper Redwood Creek, an Urban, Trout Bearing Stream.

Degree: 2013, California State University – East Bay

URL: http://hdl.handle.net/10211.3/48185

► Upper Redwood Creek watershed (596 acres or 241 hectares) in Oakland, CA is an urban park with high recreational use that supports the spawning and… (more)

▼ Upper Redwood Creek watershed (596 acres or 241 hectares) in Oakland, CA is an urban park with high recreational use that supports the spawning and rearing of native rainbow trout. This research combines tracer studies (??[superscript]18 O, TDS and temperature) with hydrometric and GIS analysis to develop a conceptual model of the surface and subsurface hydrologic regimes for future stream restoration. Stream flow and precipitation data were manually collected to provide basic hydrometric data for this previously ungaged watershed during the water year 2010/11. The use of multiple methods of analysis and manual data collection provides examples of a variety of analytical tools for small government, non-profit, and citizen groups involved in future restoration. Mean discharge for 2010/11 was 2.63 cubic feet per second (0.075 cubic meters per second) with a maximum measured discharge of 91 cubic feet per second (2.58 cubic meters per second). Precipitation of 43.5 inches (1,105 millimeters) was well above the annual average of 27.48 inches (698 millimeters) and exhibited substantial variation in ??[superscript]18 O signals, from -2.15 to -18.36 ???, with a volume-weighted mean of -9.69 ??? (SD 4.04, amplitude 8.3 ???). Stream flow ??[superscript]18 O, with a discharge-weighted mean of -6.80 ??? (SD 0.64, amplitude 1.84 ???) was considerably damped compared to precipitation input. ??[superscript]18 O tracer estimates on the event and annual scale indicate 60 to 77 percent groundwater contribution. TDS estimates of groundwater inflow contribution display comparable agreement while temperature estimates differ significantly. Tracer mixing plots, however, illustrate tracer affinity to differing reservoirs of groundwater and the utility of multiple tracers to quantify variably-aged water masses in the subsurface. ??[superscript]18 O tracer analysis suggests a large volume of groundwater contribution to annual stream flow with a relatively short mean residence time (MRT) while temperature analysis indicates smaller groundwater volume contributing to annual stream flow with a longer MRT. Temperature analysis on the reach scale suggests that substantial groundwater inflow exerts more control on damping stream temperature than canopy cover. Sine wave/exponential mixing model derived MRTs for the URC and its subcatchments range from 0.12 to 0.64 decimal years. Landscape features paired with MRT suggests that catchment size, geology, and forested cover have the strongest correlation to flow path length and residence time. Steep slopes demonstrate a weak positive correlation to MRT. This study reveals that this steeply sloped watershed has significant groundwater resources and perennial flow in upper reaches due to high fracture density, porous geology and forest cover. Multi-tracer analysis adds dimensionality to this conceptual model, characterizing groundwater contributions of new water at 20 to 30 percent, intermediate aged water at 60 to 70 percent and deeper, and older water at two to five… Advisors/Committee Members: Strayer, Dr. Luther M. (advisor), Moran, Dr. Jean E. (primaryAdvisor).

Subjects/Keywords: Stream ecology – California

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APA (6^th Edition):

Beitz, P. (2013). A Multi-Tiered Catchment Analysis of Upper Redwood Creek, an Urban, Trout Bearing Stream. (Thesis). California State University – East Bay. Retrieved from http://hdl.handle.net/10211.3/48185

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Beitz, Pamela. “A Multi-Tiered Catchment Analysis of Upper Redwood Creek, an Urban, Trout Bearing Stream.” 2013. Thesis, California State University – East Bay. Accessed February 28, 2021. http://hdl.handle.net/10211.3/48185.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Beitz, Pamela. “A Multi-Tiered Catchment Analysis of Upper Redwood Creek, an Urban, Trout Bearing Stream.” 2013. Web. 28 Feb 2021.

Vancouver:

Beitz P. A Multi-Tiered Catchment Analysis of Upper Redwood Creek, an Urban, Trout Bearing Stream. [Internet] [Thesis]. California State University – East Bay; 2013. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/10211.3/48185.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Beitz P. A Multi-Tiered Catchment Analysis of Upper Redwood Creek, an Urban, Trout Bearing Stream. [Thesis]. California State University – East Bay; 2013. Available from: http://hdl.handle.net/10211.3/48185

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Montana State University

6. Junker, James Robert. Trophic basis of invertebrate production in a Northern Rockies stream with recent willow recovery.

Degree: MS, College of Letters & Science, 2011, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/1596

► Ecologists have long recognized that ecosystems are not isolated in the landscape and can receive inputs of energy, materials, and organisms from beyond their boundaries.… (more)

▼ Ecologists have long recognized that ecosystems are not isolated in the landscape and can receive inputs of energy, materials, and organisms from beyond their boundaries. The role of these inputs for consumers in receiving ecosystems depends on biotic and abiotic characteristics of both the donor and recipient ecosystems. In streams, the influence of leaf litter input from terrestrial environments on stream structure and function has received much study. Recently, riparian vegetation in Yellowstone National Park has undergone increases in growth and distribution in many areas, however the implications for food webs of adjacent stream ecosystems has remained unexplored. In this study, we combined stable isotope ratios of food web components with estimates of invertebrate secondary production to measure the relative importance of terrestrial organic matter and algae to stream invertebrate production. We found stable isotope ratios of terrestrial litter were relatively constant throughout the annual cycle. In contrast, algae showed varying patterns of enrichment and depletion likely driven by changes in light, discharge, and sources of dissolved carbon and nitrogen. Mean annual secondary production was 7.5 g AFDM m -² y -¹ (95% CI; 7.0-8.2), and the majority of this production was supported by stream algae (58%; terrestrial detritus supported 42%). Invertebrate production varied seasonally, with >50% of annual production occurring between July and September. Relatively high quality algae supported the majority of production during this critical growth period characterized by warm temperatures and high NPP. Terrestrial litter supported the majority of invertebrate production (57%) during cold months between October and May, when stream NPP and metabolic demands of invertebrate consumers were low. Our findings demonstrate that high quality resources support invertebrate production during periods of high metabolic demand, while terrestrial litter provides an abundant resource to support invertebrate consumer production when higher quality resources are scarce and metabolism is reduced. This study provides a quantitative measure of the importance of allochthonous and autochthonous resources to an invertebrate community of a northern Rocky Mountain stream, and provides a benchmark to assess the potential impacts of changing riparian vegetation on streams within the northern Rocky Mountains. Advisors/Committee Members: Chairperson, Graduate Committee: Wyatt F. Cross (advisor).

Subjects/Keywords: Stream ecology.; Willows.

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APA (6^th Edition):

Junker, J. R. (2011). Trophic basis of invertebrate production in a Northern Rockies stream with recent willow recovery. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/1596

Chicago Manual of Style (16^th Edition):

Junker, James Robert. “Trophic basis of invertebrate production in a Northern Rockies stream with recent willow recovery.” 2011. Masters Thesis, Montana State University. Accessed February 28, 2021. https://scholarworks.montana.edu/xmlui/handle/1/1596.

MLA Handbook (7^th Edition):

Junker, James Robert. “Trophic basis of invertebrate production in a Northern Rockies stream with recent willow recovery.” 2011. Web. 28 Feb 2021.

Vancouver:

Junker JR. Trophic basis of invertebrate production in a Northern Rockies stream with recent willow recovery. [Internet] [Masters thesis]. Montana State University; 2011. [cited 2021 Feb 28]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/1596.

Council of Science Editors:

Junker JR. Trophic basis of invertebrate production in a Northern Rockies stream with recent willow recovery. [Masters Thesis]. Montana State University; 2011. Available from: https://scholarworks.montana.edu/xmlui/handle/1/1596

University of Illinois – Urbana-Champaign

7. Zobel, Zachary T. Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States.

Degree: MS, Atmospheric Sciences, 2015, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/89264

► New evidence is presented to show that decreasing sea ice in the Arctic is causing an increased amplification of the jet stream off the west… (more)

Subjects/Keywords: jet stream amplification

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APA (6^th Edition):

Zobel, Z. T. (2015). Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/89264

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zobel, Zachary T. “Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States.” 2015. Thesis, University of Illinois – Urbana-Champaign. Accessed February 28, 2021. http://hdl.handle.net/2142/89264.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zobel, Zachary T. “Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States.” 2015. Web. 28 Feb 2021.

Vancouver:

Zobel ZT. Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/2142/89264.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zobel ZT. Investigating the link between Arctic sea ice, North Pacific geopotential height anomalies, and precipitation across the United States. [Thesis]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/89264

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Montana

8. Stanley, Andrea. Hydrologic Conditions and Streamflow Change in an Evolving Semi-Arid Agricultural Watershed, Smith River, Montana.

Degree: MS, 2013, University of Montana

URL: https://scholarworks.umt.edu/etd/1378

► Agricultural land and water use has modified natural flow regimes in the western US. Understanding the effect of agricultural water use on streamflow is critical… (more)

Subjects/Keywords: PRMS; stream flow

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APA (6^th Edition):

Stanley, A. (2013). Hydrologic Conditions and Streamflow Change in an Evolving Semi-Arid Agricultural Watershed, Smith River, Montana. (Masters Thesis). University of Montana. Retrieved from https://scholarworks.umt.edu/etd/1378

Chicago Manual of Style (16^th Edition):

Stanley, Andrea. “Hydrologic Conditions and Streamflow Change in an Evolving Semi-Arid Agricultural Watershed, Smith River, Montana.” 2013. Masters Thesis, University of Montana. Accessed February 28, 2021. https://scholarworks.umt.edu/etd/1378.

MLA Handbook (7^th Edition):

Stanley, Andrea. “Hydrologic Conditions and Streamflow Change in an Evolving Semi-Arid Agricultural Watershed, Smith River, Montana.” 2013. Web. 28 Feb 2021.

Vancouver:

Stanley A. Hydrologic Conditions and Streamflow Change in an Evolving Semi-Arid Agricultural Watershed, Smith River, Montana. [Internet] [Masters thesis]. University of Montana; 2013. [cited 2021 Feb 28]. Available from: https://scholarworks.umt.edu/etd/1378.

Council of Science Editors:

Stanley A. Hydrologic Conditions and Streamflow Change in an Evolving Semi-Arid Agricultural Watershed, Smith River, Montana. [Masters Thesis]. University of Montana; 2013. Available from: https://scholarworks.umt.edu/etd/1378

Penn State University

9. Carroll, Samuel N. Managing Stable Waterways at Bridges in the Mid-Atlantic.

Degree: 2017, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/14793snc5178

► In this study, a methodology is developed for creating stable channel transitions at bridge stream intersections. A methodology is developed to assess the level of… (more)

Subjects/Keywords: stream crossings; stream stability; channel stability; bridge crossings; bridges; stream assessments

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APA (6^th Edition):

Carroll, S. N. (2017). Managing Stable Waterways at Bridges in the Mid-Atlantic. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/14793snc5178

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Carroll, Samuel N. “Managing Stable Waterways at Bridges in the Mid-Atlantic.” 2017. Thesis, Penn State University. Accessed February 28, 2021. https://submit-etda.libraries.psu.edu/catalog/14793snc5178.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Carroll, Samuel N. “Managing Stable Waterways at Bridges in the Mid-Atlantic.” 2017. Web. 28 Feb 2021.

Vancouver:

Carroll SN. Managing Stable Waterways at Bridges in the Mid-Atlantic. [Internet] [Thesis]. Penn State University; 2017. [cited 2021 Feb 28]. Available from: https://submit-etda.libraries.psu.edu/catalog/14793snc5178.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Carroll SN. Managing Stable Waterways at Bridges in the Mid-Atlantic. [Thesis]. Penn State University; 2017. Available from: https://submit-etda.libraries.psu.edu/catalog/14793snc5178

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Victoria University of Wellington

10. McCarthy, Lisa. Depositional environment of the Branch Sandstone and correlative sequences: Late Cretaceous changes in relative sea level in the East Coast Basin of New Zealand.

Degree: 2018, Victoria University of Wellington

URL: http://hdl.handle.net/10063/7807

► The Branch Sandstone is located within an overall transgressive, marine sedimentary succession in Marlborough, on the East Coast of New Zealand’s South Island. It has… (more)

▼ The Branch Sandstone is located within an overall transgressive, marine sedimentary succession in Marlborough, on the East Coast of New Zealand’s South Island. It has previously been interpreted as an anomalous sedimentary unit that was inferred to indicate abrupt and dramatic shallowing. The development of a presumed short-lived regressive deposit was thought to reflect a change in relative sea level, which had significant implications for the geological history of the Marlborough region, and regionally for the East Coast Basin. The distribution and lithology of Branch Sandstone is described in detail from outcrop studies at Branch Stream, and through the compilation of existing regional data. Two approximately correlative sections from the East Coast of the North Island (Tangaruhe Stream and Angora Stream) are also examined to provide regional context. Depositional environments were interpreted using sedimentology and palynology, and age control was developed from dinoflagellate biostratigraphy. Data derived from these methods were combined with the work of previous authors to establish depositional models for each section which were then interpreted in the context of relative sea level fluctuations. At Branch Stream, Branch Sandstone is interpreted as a shelfal marine sandstone, that disconformably overlies Herring Formation. The Branch Sandstone is interpreted as a more distal deposit than uppermost Herring Formation, whilst the disconformity is suggested to have developed during a fall in relative sea level. At Branch Stream, higher frequency tectonic or eustatic sea-level changes can therefore be distinguished within a passive margin sedimentary sequence, where sedimentation broadly reflects subsidence following rifting of the Tasman Sea. Development of a long-lived disconformity at Tangaruhe Stream and deposition of sediment gravity flow deposits at Angora Stream occurred at similar times to the fall in relative sea level documented at the top of the Herring Formation at Branch Stream. These features may reflect a basin-wide relative sea-level event, that coincides with global records of eustatic sea level fall. Advisors/Committee Members: Crampton, James, Hannah, Michael.

Subjects/Keywords: Branch Stream; Tangaruhe Stream; Angora Stream; Branch Sandstone; dinoflagellate biostratigraphy

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APA (6^th Edition):

McCarthy, L. (2018). Depositional environment of the Branch Sandstone and correlative sequences: Late Cretaceous changes in relative sea level in the East Coast Basin of New Zealand. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/7807

Chicago Manual of Style (16^th Edition):

McCarthy, Lisa. “Depositional environment of the Branch Sandstone and correlative sequences: Late Cretaceous changes in relative sea level in the East Coast Basin of New Zealand.” 2018. Masters Thesis, Victoria University of Wellington. Accessed February 28, 2021. http://hdl.handle.net/10063/7807.

MLA Handbook (7^th Edition):

McCarthy, Lisa. “Depositional environment of the Branch Sandstone and correlative sequences: Late Cretaceous changes in relative sea level in the East Coast Basin of New Zealand.” 2018. Web. 28 Feb 2021.

Vancouver:

McCarthy L. Depositional environment of the Branch Sandstone and correlative sequences: Late Cretaceous changes in relative sea level in the East Coast Basin of New Zealand. [Internet] [Masters thesis]. Victoria University of Wellington; 2018. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/10063/7807.

Council of Science Editors:

McCarthy L. Depositional environment of the Branch Sandstone and correlative sequences: Late Cretaceous changes in relative sea level in the East Coast Basin of New Zealand. [Masters Thesis]. Victoria University of Wellington; 2018. Available from: http://hdl.handle.net/10063/7807

University of Tennessee – Knoxville

11. Melton, Jeremy. Assessing Geomorphic and Habitat Metrics for Functional Lift from Urban Stream Restoration in the East Tennessee Ridge and Valley Province.

Degree: MS, Environmental Engineering, 2020, University of Tennessee – Knoxville

URL: https://trace.tennessee.edu/utk_gradthes/5585

► Urban watersheds experience a variety of ecosystem stressors including hydromodification and impaired water quality. Impacts of hydromodification include rapid geomorphic adjustment to the channel and… (more)

▼ Urban watersheds experience a variety of ecosystem stressors including hydromodification and impaired water quality. Impacts of hydromodification include rapid geomorphic adjustment to the channel and degraded habitat which potentially can harm benthic macroinvertebrate and fish communities. Stream restoration is occasionally implemented to mitigate damage to habitats that support these communities, but often the ecological component is ignored, or design criteria is improperly implemented. Because geomorphic attributes often define habitat structure, they are a necessary component to stream condition and restoration design. However due to watershed-scale stressors impacting urban streams, ecological recovery from geomorphic-habitat restoration practices remains mixed, and the potential for functional lift not well quantified. The following research explores the degree to which functional lift is possible in restored urban streams by comparing three classifications of streams: urban impaired (UI), urban restored (UR), and ecoregion reference (ERR) sites. Because compensatory mitigation is required by the U.S. Clean Water Act for aquatic resource loss and functional lift to be quantified, this research also assess the utility of the Tennessee Stream Quantification Tool (TNSQT) from urban stream restoration by using the tool to estimate existing condition scores (ECS) among UI, UR, and ERR sites. The study assessed multiple geomorphic, channel stability, riparian corridor, and mesohabitat characteristics using many field-based metrics measurements (e.g., channel longitudinal profile, pool-riffle-bar structure, etc.); utilized existing assessment indicator tools including the Rapid Geomorphic Assessment (RGA), a modified EMAP procedure, and the Rapid Bioassessment Protocol (RBP); and applied the TNSQT. All data were assessed to quantify the departure of impaired and restored streams from the reference streams. The RGA and RBP index scores were significantly different among the three stream condition types. The RGA and RBP index scores were governed by individual metrics related to bank stability/erosion, channel incision, riparian vegetation, and sediment deposition and embeddedness. The scoring provided by the current version of the TNSQT failed to reflect any improvement between stream condition types. The findings of this portion of the study indicate that a combination of the RGA and RBP may conditionally be a better indicator of functional lift from urban stream restorations than the TNSQT. Advisors/Committee Members: John Schwartz, John Hathaway, Jon Hathaway, Brian Alford.

Subjects/Keywords: urban stream restoration; functional lift; stream geomorphology; stream habitat

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APA (6^th Edition):

Melton, J. (2020). Assessing Geomorphic and Habitat Metrics for Functional Lift from Urban Stream Restoration in the East Tennessee Ridge and Valley Province. (Thesis). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_gradthes/5585

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Melton, Jeremy. “Assessing Geomorphic and Habitat Metrics for Functional Lift from Urban Stream Restoration in the East Tennessee Ridge and Valley Province.” 2020. Thesis, University of Tennessee – Knoxville. Accessed February 28, 2021. https://trace.tennessee.edu/utk_gradthes/5585.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Melton, Jeremy. “Assessing Geomorphic and Habitat Metrics for Functional Lift from Urban Stream Restoration in the East Tennessee Ridge and Valley Province.” 2020. Web. 28 Feb 2021.

Vancouver:

Melton J. Assessing Geomorphic and Habitat Metrics for Functional Lift from Urban Stream Restoration in the East Tennessee Ridge and Valley Province. [Internet] [Thesis]. University of Tennessee – Knoxville; 2020. [cited 2021 Feb 28]. Available from: https://trace.tennessee.edu/utk_gradthes/5585.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Melton J. Assessing Geomorphic and Habitat Metrics for Functional Lift from Urban Stream Restoration in the East Tennessee Ridge and Valley Province. [Thesis]. University of Tennessee – Knoxville; 2020. Available from: https://trace.tennessee.edu/utk_gradthes/5585

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Minnesota

12. Kocian, Matthew James. Assessing the accuracy of GIS-derived stream length and slope estimates.

Degree: MS, Conservation biology, 2012, University of Minnesota

URL: http://purl.umn.edu/143829

►

University of Minnesota M.S. thesis. Decembrt 2012. Major: Conservation biology. Advisor: Bruce Vondracek. 1 computer file (PDF); v, 81 pages.

Stream slope is a critical… (more)

Subjects/Keywords: Geographic Information System; GIS; Method accuracy; Stream gradient; Stream power; Stream slope

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APA (6^th Edition):

Kocian, M. J. (2012). Assessing the accuracy of GIS-derived stream length and slope estimates. (Masters Thesis). University of Minnesota. Retrieved from http://purl.umn.edu/143829

Chicago Manual of Style (16^th Edition):

Kocian, Matthew James. “Assessing the accuracy of GIS-derived stream length and slope estimates.” 2012. Masters Thesis, University of Minnesota. Accessed February 28, 2021. http://purl.umn.edu/143829.

MLA Handbook (7^th Edition):

Kocian, Matthew James. “Assessing the accuracy of GIS-derived stream length and slope estimates.” 2012. Web. 28 Feb 2021.

Vancouver:

Kocian MJ. Assessing the accuracy of GIS-derived stream length and slope estimates. [Internet] [Masters thesis]. University of Minnesota; 2012. [cited 2021 Feb 28]. Available from: http://purl.umn.edu/143829.

Council of Science Editors:

Kocian MJ. Assessing the accuracy of GIS-derived stream length and slope estimates. [Masters Thesis]. University of Minnesota; 2012. Available from: http://purl.umn.edu/143829

University of Minnesota

13. Kocian, Matthew James. Assessing the accuracy of GIS-derived stream length and slope estimates.

Degree: MS, Conservation biology, 2012, University of Minnesota

URL: http://purl.umn.edu/143829

► Stream slope is a critical component in lotic systems research. It is commonly associated with fish and invertebrate distribution, and is prominently used in many… (more)

Subjects/Keywords: Geographic Information System; GIS; Method accuracy; Stream gradient; Stream power; Stream slope

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kocian, M. J. (2012). Assessing the accuracy of GIS-derived stream length and slope estimates. (Masters Thesis). University of Minnesota. Retrieved from http://purl.umn.edu/143829

Chicago Manual of Style (16^th Edition):

Kocian, Matthew James. “Assessing the accuracy of GIS-derived stream length and slope estimates.” 2012. Masters Thesis, University of Minnesota. Accessed February 28, 2021. http://purl.umn.edu/143829.

MLA Handbook (7^th Edition):

Kocian, Matthew James. “Assessing the accuracy of GIS-derived stream length and slope estimates.” 2012. Web. 28 Feb 2021.

Vancouver:

Kocian MJ. Assessing the accuracy of GIS-derived stream length and slope estimates. [Internet] [Masters thesis]. University of Minnesota; 2012. [cited 2021 Feb 28]. Available from: http://purl.umn.edu/143829.

Council of Science Editors:

Kocian MJ. Assessing the accuracy of GIS-derived stream length and slope estimates. [Masters Thesis]. University of Minnesota; 2012. Available from: http://purl.umn.edu/143829

University of Canterbury

14. Burdon, Francis John. Impacts of sedimentation on the structure and functioning of agricultural stream communities.

Degree: PhD, Ecology, 2013, University of Canterbury

URL: http://dx.doi.org/10.26021/7589

► The excessive deposition of fine inorganic sediment (<2 mm) is a major pathway by which agricultural land uses exert pressure on stream ecosystems. However, less… (more)

▼ The excessive deposition of fine inorganic sediment (<2 mm) is a major pathway by which agricultural land uses exert pressure on stream ecosystems. However, less well understood are the underlying mechanisms driving threshold biotic responses and the ecological consequences of community changes to sedimentation. Reviewing the literature, I found that sedimentation can affect algal and detrital pathways, and invertebrate community composition may show abrupt shifts with increased sediment. Moreover, functional changes to communities potentially leads to simpler food webs, with altered interactions and decreased ecosystem function. After identifying these knowledge gaps, I conducted survey and experimental research using agricultural streams on the Canterbury Plains of New Zealand’s South Island. Results from my survey of 30 streams along a sedimentation gradient showed that pollution-sensitive invertebrates (% EPT; Ephemeroptera, Plecoptera, Trichoptera) demonstrated threshold responses to sediment that varied with spatial scale, and change-point analysis indicated marked declines beyond 20% fine sediment covering streambed reaches. Structural equation modeling indicated that decreased habitat availability was a key mechanism contributing to these changes. To better understand the functional consequences of altered community structure, I investigated food webs in 12 streams along the gradient. The results showed a compression of community trophic niche space, suggesting that in particular, primary consumers became trophically more equivalent. The simplification of stream food webs with increasing sediment appeared to be the result of functional changes to invertebrate communities, with fewer specialised consumers, and shifts in the availability of basal resources. Using field and laboratory experiments investigating litter breakdown and invertebrate feeding, I found that the net consequence of functionally less diverse stream communities with increased sediment was impaired ecosystem function, demonstrated by a reduction in litter breakdown rates. The reduction of detrital resource availability through burial by sediment in laboratory mesocosm experiments strongly influenced detrital consumption rates, thus leading to reduced growth and survival of detritivorous caddisflies. The survey and experimental results support my postulate that sediment deposition causes environmental stress by degrading benthic habitat and making associated food resources (e.g., periphyton and leaves) less available. Overall, my results have provided new insights into sediment impacts on stream communities and have furthered our understanding of how these changes affect the structure and functioning of stream ecosystems.

Subjects/Keywords: agriculture; sedimentation; fine inorganic sediment; stream invertebrates; stream communities; stream food webs; ecosystem function

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APA (6^th Edition):

Burdon, F. J. (2013). Impacts of sedimentation on the structure and functioning of agricultural stream communities. (Doctoral Dissertation). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/7589

Chicago Manual of Style (16^th Edition):

Burdon, Francis John. “Impacts of sedimentation on the structure and functioning of agricultural stream communities.” 2013. Doctoral Dissertation, University of Canterbury. Accessed February 28, 2021. http://dx.doi.org/10.26021/7589.

MLA Handbook (7^th Edition):

Burdon, Francis John. “Impacts of sedimentation on the structure and functioning of agricultural stream communities.” 2013. Web. 28 Feb 2021.

Vancouver:

Burdon FJ. Impacts of sedimentation on the structure and functioning of agricultural stream communities. [Internet] [Doctoral dissertation]. University of Canterbury; 2013. [cited 2021 Feb 28]. Available from: http://dx.doi.org/10.26021/7589.

Council of Science Editors:

Burdon FJ. Impacts of sedimentation on the structure and functioning of agricultural stream communities. [Doctoral Dissertation]. University of Canterbury; 2013. Available from: http://dx.doi.org/10.26021/7589

University of Cambridge

15. Baker, Narelle Paula Marie. The influence of subglacial hydrology on the flow of West Antarctic ice streams.

Degree: PhD, 2012, University of Cambridge

URL: https://doi.org/10.17863/CAM.16311 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549912

► Subglacial hydrology is known to influence the flow of ice. However, difficulty in accessing the base of large ice sheets has made determining the interaction… (more)

Subjects/Keywords: 551.48; Ice stream; Antarctica; Hydrology; Subglacial; Numerical model; Kamb Ice Stream; Whillans Ice Stream

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APA (6^th Edition):

Baker, N. P. M. (2012). The influence of subglacial hydrology on the flow of West Antarctic ice streams. (Doctoral Dissertation). University of Cambridge. Retrieved from https://doi.org/10.17863/CAM.16311 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549912

Chicago Manual of Style (16^th Edition):

Baker, Narelle Paula Marie. “The influence of subglacial hydrology on the flow of West Antarctic ice streams.” 2012. Doctoral Dissertation, University of Cambridge. Accessed February 28, 2021. https://doi.org/10.17863/CAM.16311 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549912.

MLA Handbook (7^th Edition):

Baker, Narelle Paula Marie. “The influence of subglacial hydrology on the flow of West Antarctic ice streams.” 2012. Web. 28 Feb 2021.

Vancouver:

Baker NPM. The influence of subglacial hydrology on the flow of West Antarctic ice streams. [Internet] [Doctoral dissertation]. University of Cambridge; 2012. [cited 2021 Feb 28]. Available from: https://doi.org/10.17863/CAM.16311 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549912.

Council of Science Editors:

Baker NPM. The influence of subglacial hydrology on the flow of West Antarctic ice streams. [Doctoral Dissertation]. University of Cambridge; 2012. Available from: https://doi.org/10.17863/CAM.16311 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549912

Technical University of Lisbon

16. Rafael, João Miguel Chaves. Estratégia energética da Russia:ocaso do gás natural nas relações com a Europa.

Degree: 2012, Technical University of Lisbon

URL: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4547

►

Dissertação de Mestrado em Estratégia

Esta investigação demonstra como a riqueza de gás natural actua como factor de afirmação geopolítica e de potencial estratégico fundamental… (more)

▼

Dissertação de Mestrado em Estratégia

Esta investigação demonstra como a riqueza de gás natural actua como factor de afirmação geopolítica e de potencial estratégico fundamental para a reemergência da Rússia enquanto potência no sistema internacional. Neste trabalho é estudada a enorme dependência da Europa em relação ao gás russo, já que esse facto é preponderante para a reconquista do estatuto de grande potência por parte da Rússia. É na Europa que se centram as estratégias da Rússia com os seus projectos de novos gasodutos como Nord Stream e o South Stream, o que não dispensará os russos de seguir também um jogo estratégico no Cáucaso e na Ásia Central de modo a garantir o sucesso das suas ambições dentro da Europa. Será abordado o projecto Nabucco como vanguarda da estratégia da União Europeia no combate à sua dependência em relação à Rússia, apresentando várias debilidades quanto à sua viabilidade, mas que a ter sucesso, compromete o futuro da Rússia no mercado do gás. A Rússia, por outro lado, tem pela frente grandes ameaças ao seu poder energético no longo prazo como a queda da produção, que poderá ameaçar a Europa também, e a baixa competitividade do gás russo que por enquanto é salva por um mercado onde a concorrência dificilmente consegue entrar.

This research shows how the wealth of natural gas play a role on geopolitical assertion and fundamental strategic potential for the re-rising of Russia as an influential nation in the international system. This dissertation studies the huge European dependence on the Russian gas, as this fact is crucial for the Russians to re-conquer their great power status. It is in Europe that Russia’s strategies are focused with its projects of new gas pipelines like the Nord Stream and South Stream. This, however, does not exempt Russians from pursuing a strategic game in the Caucasus and Central Asia, in order to ensure the success of their ambitions within Europe. We will cover the Nabucco project as the European Union’s head strategy, in its struggle against the dependence from Russia, while showing several weaknesses regarding its viability. However, should it succeed, it will undermine Russia’s future in the gas market. Nevertheless, Russia faces great threats to its energetic power in the long run, i.e. the fall of production which might also threaten Europe, as well as the low competitiveness level of the Russian gas that for the moment is saved by a market where the competition hardly penetrates.

Advisors/Committee Members: Daehnhard,Patrícia.

Subjects/Keywords: Rússia; Europa; Gás natural; South Stream,; Nord Stream; Nabucco; Russia; Europe; Natural gas,; South Stream; Nord Stream; Nabucco

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APA (6^th Edition):

Rafael, J. M. C. (2012). Estratégia energética da Russia:ocaso do gás natural nas relações com a Europa. (Thesis). Technical University of Lisbon. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4547

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rafael, João Miguel Chaves. “Estratégia energética da Russia:ocaso do gás natural nas relações com a Europa.” 2012. Thesis, Technical University of Lisbon. Accessed February 28, 2021. http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4547.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rafael, João Miguel Chaves. “Estratégia energética da Russia:ocaso do gás natural nas relações com a Europa.” 2012. Web. 28 Feb 2021.

Vancouver:

Rafael JMC. Estratégia energética da Russia:ocaso do gás natural nas relações com a Europa. [Internet] [Thesis]. Technical University of Lisbon; 2012. [cited 2021 Feb 28]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4547.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rafael JMC. Estratégia energética da Russia:ocaso do gás natural nas relações com a Europa. [Thesis]. Technical University of Lisbon; 2012. Available from: http://www.rcaap.pt/detail.jsp?id=oai:www.repository.utl.pt:10400.5/4547

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

17. Ice, George G. Reaeration in a turbulent stream system.

Degree: PhD, Forest Engineering, 1978, Oregon State University

URL: http://hdl.handle.net/1957/9922

► The oxygen concentration in a stream is an important parameter of water quality. Changes in oxygen concentrations can affect various stream organisms including fish. Foresters… (more)

▼ The oxygen concentration in a stream is an important parameter of water quality. Changes in oxygen concentrations can affect various stream organisms including fish. Foresters have become concerned with predicting the impacts of forest activities on oxygen levels in streams. Slash, which accumulates in streams as a result of harvesting activities, is a food source for stream organisms. During aerobic respiration, oxygen is utilized. Under some conditions the oxygen concentration can be depleted below acceptable levels. Large, fish bearing streams are generally well protected by forest practice regulations. For smaller streams without fish populations, the issue is one of downstream impairment of water quality as deoxygenated water enters fish-bearing reaches. A natural process counteracting oxygen depletion is reaeration. Reaeration is the exchange of gases between the atmosphere and water. This process operates to maintain oxygen near the saturation concentration. The change in the oxygen deficit in a stream is a function of the existing deficit and the reaeration rate coefficient. The objective of this study was to develop a predictive equation for the reaeration rate coefficient based on the hydraulic characteristics of stream channels. This is a a first step in developing guidelines to regulate harvesting residues in streams. Seven natural stream sites were selected in Oregon. These sites represented a wide range of hydraulic conditions. The stream reaches were segregated into segments of uniform hydraulic characteristics. Sodium sulfite was injected into the stream to artificially deplete the oxygen concentration. The recovery of the oxygen concentration was used to determine the reaeration rate coefficient. Several models for the reaeration process were tested using regression techniques. Some were models proposed by other investigators and some were developed independently. The predictive equation which fit the data best is a function of the maximum unit energy dissipation rate (ED) and a depth parameter (HD): [equation-see PDF] This equation is consistent with theoretical descriptions of gas exchange phenomena. As the rate of energy dissipation increases in a segment, the turbulence in the segment also increases. Turbulence promotes an increase in the liquid-atmosphere interface area and in the exchange rate of volume elements in the interface. Reaeration is stimulated when deaerated water from the bulk flow of the stream replaces the oxygen saturated water in the surface film. As the area of liquid-atmosphere contact increases, the total flux of oxygen molecules into the depleted fluid volume increases. As the fluid volume increases, the change in concentration for a specific flux of molecules decreases. The depth term (HD) can be used to describe the ratio of the surface area to the volume of fluid in the segment. In this study, the depth term used was the discharge divided by the mean width and maximum velocity. This approach adjusts for dead zones that… Advisors/Committee Members: Brown, George W. (advisor), Froehlich, Henry A. (committee member).

Subjects/Keywords: Stream ecology

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APA (6^th Edition):

Ice, G. G. (1978). Reaeration in a turbulent stream system. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/9922

Chicago Manual of Style (16^th Edition):

Ice, George G. “Reaeration in a turbulent stream system.” 1978. Doctoral Dissertation, Oregon State University. Accessed February 28, 2021. http://hdl.handle.net/1957/9922.

MLA Handbook (7^th Edition):

Ice, George G. “Reaeration in a turbulent stream system.” 1978. Web. 28 Feb 2021.

Vancouver:

Ice GG. Reaeration in a turbulent stream system. [Internet] [Doctoral dissertation]. Oregon State University; 1978. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1957/9922.

Council of Science Editors:

Ice GG. Reaeration in a turbulent stream system. [Doctoral Dissertation]. Oregon State University; 1978. Available from: http://hdl.handle.net/1957/9922

Oregon State University

18. Brown, George Wallace, 1939-. Temperature prediction using energy budget techniques on small mountain streams.

Degree: PhD, Forest Management, 1966, Oregon State University

URL: http://hdl.handle.net/1957/12911

► This study is part of the Alsea Basin Logging-Aquatic Resources Study research program. It was initiated to determine the applicability of energy budget theory to… (more)

▼ This study is part of the Alsea Basin Logging-Aquatic Resources Study research program. It was initiated to determine the applicability of energy budget theory to stream temperature prediction on small forested streams. The study was also designed to evaluate the energy budget technique as a tool in the management of mountain streams for the production of high quality water. Temperature predictions were made on four stretches of three streams in the Coast and Cascade Ranges in Oregon during the summers of 1965 and 1966. Three of these stretches were forested. The fourth was completely exposed to direct radiation. Stream temperature change occurring within a stretch of stream was determined by evaluating the radiative, evaporative, and conductive fluxes incident at the surface of the water as it moved down stream. Net radiation was measured directly. Evaporation was computed using a Dalton type equation. Conduction was determined with the Bowen ratio. These fluxes were then added to determine the net flux. Stream temperature change was computed as: [see pdf for equation] Stream temperature was predicted with varying degrees of accuracy on the four stretches. Tests suggested that the predictions could be improved slightly on long stretches by subdivision of the stretch and by separating data into daytime or nighttime units. Additional tests indicated that under a broken canopy. net radiation estimates, and thus stream temperature predictions, may be improved by measuring, or utilizing in the predictive equation, only the diffuse radiation penetrating the canopy. Integration of the net radiation recorded to include occasional spots of sunlight results in an overestimation of temperature change during sunny periods. A stream bottom may act as a heat sink during the day and as a heat source at night. This phenomenon was measured on one stretch. This helped explain predictive errors of about 10° F. The study on the open stretch showed that during the day, conductive and evaporative fluxes were small compared to the radiative flux. This led to modification of the original formula for predicting temperature maxima. This formula is: [see pdf for equation] This permits field personnel to make estimates of maximum temperature changes attainable by opening a stretch of stream. Advisors/Committee Members: Krygier, James T. (advisor), Boersma, Larry (committee member).

Subjects/Keywords: Stream measurements

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APA (6^th Edition):

Brown, George Wallace, 1. (1966). Temperature prediction using energy budget techniques on small mountain streams. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/12911

Chicago Manual of Style (16^th Edition):

Brown, George Wallace, 1939-. “Temperature prediction using energy budget techniques on small mountain streams.” 1966. Doctoral Dissertation, Oregon State University. Accessed February 28, 2021. http://hdl.handle.net/1957/12911.

MLA Handbook (7^th Edition):

Brown, George Wallace, 1939-. “Temperature prediction using energy budget techniques on small mountain streams.” 1966. Web. 28 Feb 2021.

Vancouver:

Brown, George Wallace 1. Temperature prediction using energy budget techniques on small mountain streams. [Internet] [Doctoral dissertation]. Oregon State University; 1966. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1957/12911.

Council of Science Editors:

Brown, George Wallace 1. Temperature prediction using energy budget techniques on small mountain streams. [Doctoral Dissertation]. Oregon State University; 1966. Available from: http://hdl.handle.net/1957/12911

Oregon State University

19. Garvin, William Fredrick. The intrusion of logging debris into artificial gravel streambeds.

Degree: MS, Forest Engineering, 1974, Oregon State University

URL: http://hdl.handle.net/1957/9521

► The objective of this study was to quantitatively describe the intrusion of logging debris into artificial gravel streambeds during conditions of low stream flow with… (more)

▼ The objective of this study was to quantitatively describe the intrusion of logging debris into artificial gravel streambeds during conditions of low stream flow with a stable streambed, and begin an analysis of the effect of high flow and unstable streambeds. This study was initiated because prior studies indicated that logging debris was responsible for dissolved oxygen reduction within the gravel bed of spawning streams. Low flow – stable streambed studies were run for eighteen to twenty days in a flume. Two control samples of the gravel were taken. Logging slash was then placed on the gravel in volumes approximating those of logged streams. A sample was taken every other day for eighteen to twenty days using a device which froze a core of the streambed gravel. Since there were many problems with vandalism and weather, only two low flow replications were completed. shows the large random error which occurs even in the deeper sections. The range of debris concentrations of the two deeper sections for low flow studies one and two were .07 gm/l and .15 gm/l respectively. The average concentration values for low flow studies one and two were .03 gm/l and .02 gm/l respectively. No variables in the high flow study were found to be good predictors of intrusion. Natural random error and the extreme variability of this dynamic system were too great to draw even general conclusions. The range of concentrations of high flow studies one and two were .14 gm/l and .04 gm/l respectively. The average concentration values for high flow studies one and two were .01 gm/l and .02 gm/l respectively. Beneath the armour layer, the streambed exhibits less variability, but the large random error is sufficient to make prediction of intrusion difficult. During high flow periods where the streambed is moving, no predictive equation could be developed to estimate organic material release or incorporation owing to the large variability existing in the system. Advisors/Committee Members: Brown, George W. (advisor).

Subjects/Keywords: Stream ecology

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APA (6^th Edition):

Garvin, W. F. (1974). The intrusion of logging debris into artificial gravel streambeds. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/9521

Chicago Manual of Style (16^th Edition):

Garvin, William Fredrick. “The intrusion of logging debris into artificial gravel streambeds.” 1974. Masters Thesis, Oregon State University. Accessed February 28, 2021. http://hdl.handle.net/1957/9521.

MLA Handbook (7^th Edition):

Garvin, William Fredrick. “The intrusion of logging debris into artificial gravel streambeds.” 1974. Web. 28 Feb 2021.

Vancouver:

Garvin WF. The intrusion of logging debris into artificial gravel streambeds. [Internet] [Masters thesis]. Oregon State University; 1974. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1957/9521.

Council of Science Editors:

Garvin WF. The intrusion of logging debris into artificial gravel streambeds. [Masters Thesis]. Oregon State University; 1974. Available from: http://hdl.handle.net/1957/9521

Oregon State University

20. Lammel, Richard Friedrich. Natural debris and logging residue within the stream environment.

Degree: MS, Forest Engineering, 1972, Oregon State University

URL: http://hdl.handle.net/1957/9550

► Amounts of natural debris in small headwater streams under old growth stands of Douglas-fir vary from 6 1/2 tons per 100 ft. of stream to… (more)

Subjects/Keywords: Stream ecology

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APA (6^th Edition):

Lammel, R. F. (1972). Natural debris and logging residue within the stream environment. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/9550

Chicago Manual of Style (16^th Edition):

Lammel, Richard Friedrich. “Natural debris and logging residue within the stream environment.” 1972. Masters Thesis, Oregon State University. Accessed February 28, 2021. http://hdl.handle.net/1957/9550.

MLA Handbook (7^th Edition):

Lammel, Richard Friedrich. “Natural debris and logging residue within the stream environment.” 1972. Web. 28 Feb 2021.

Vancouver:

Lammel RF. Natural debris and logging residue within the stream environment. [Internet] [Masters thesis]. Oregon State University; 1972. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1957/9550.

Council of Science Editors:

Lammel RF. Natural debris and logging residue within the stream environment. [Masters Thesis]. Oregon State University; 1972. Available from: http://hdl.handle.net/1957/9550

Oregon State University

21. Gilleran, Dennis James. Rapid calibration of coastal streams to detect effects of roadbuilding.

Degree: MS, Forest Management, 1967, Oregon State University

URL: http://hdl.handle.net/1957/12820

► This study data from the Alsea Watershed Study located approximately ten miles from the Pacific Ocean in the Oregon Coast Range. The purpose was to… (more)

Subjects/Keywords: Stream measurements

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APA (6^th Edition):

Gilleran, D. J. (1967). Rapid calibration of coastal streams to detect effects of roadbuilding. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/12820

Chicago Manual of Style (16^th Edition):

Gilleran, Dennis James. “Rapid calibration of coastal streams to detect effects of roadbuilding.” 1967. Masters Thesis, Oregon State University. Accessed February 28, 2021. http://hdl.handle.net/1957/12820.

MLA Handbook (7^th Edition):

Gilleran, Dennis James. “Rapid calibration of coastal streams to detect effects of roadbuilding.” 1967. Web. 28 Feb 2021.

Vancouver:

Gilleran DJ. Rapid calibration of coastal streams to detect effects of roadbuilding. [Internet] [Masters thesis]. Oregon State University; 1967. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1957/12820.

Council of Science Editors:

Gilleran DJ. Rapid calibration of coastal streams to detect effects of roadbuilding. [Masters Thesis]. Oregon State University; 1967. Available from: http://hdl.handle.net/1957/12820

Oregon State University

22. Frentress, Jay. The role of near-stream zones on flow, chemistry and isotopic composition at the headwater scale.

Degree: PhD, Water Resources Science, 2015, Oregon State University

URL: http://hdl.handle.net/1957/57899

► Stream discharge is a key water balance component and important factor in global change evaluations. Nevertheless, the mechanisms for streamflow generation are poorly understood. Near-… (more)

▼ Stream discharge is a key water balance component and important factor in global change evaluations. Nevertheless, the mechanisms for streamflow generation are poorly understood. Near- stream surface saturation during precipitation events is one of the most iconic, visible indicators of rapid runoff production in upland humid catchments around the world. Despite years of study, we lack understanding of what occurs within the near-stream saturated area, its mixing dynamics and how this affects catchment geochemical- and flow-response dynamics during events. This thesis explores the mechanisms that control near-stream saturated area behavior in a headwater catchment. First, I explore the relation between catchment geochemical response and the flow duration curve (FDC) for the 46-ha Weierbach catchment in Luxembourg across 10 years of runoff monitoring. The shape of the Weierbach FDC suggested a two-phase system, a high-flow, precipitation-driven period and a dry, evapotranspiration-driven, low-flow period. I hypothesized that the two phases were correlated with activation of shallow hillslope and subsurface streamflow sources and that the activation of these sources would be reflected in stream chemistry and surface saturation dynamics. During high-flow periods of the FDC, stream geochemistry was largely unchanging, lacking a dilution effect and appeared a mix of the highly variable soil and groundwater. Thermal infrared (TIR) imagery suggested large surface saturation dynamics at high flows. The geochemical signature of streamflow and soil riparian water during low-flow periods most closely resembled groundwater chemistry and led to increasing base cation concentrations and electrical conductivity. Secondly, to better understand the effect of rain falling on saturated areas and the contribution of rainfall to saturation excess overland flow, I quantified surface saturation dynamics in a near- stream area during rainfall events using high-frequency TIR imagery. During 10 rainfall events across a 34-day period starting December 2013, a total of 161 mm of rainfall elicited 133 mm of runoff at the 6-ha outlet. Surface saturation within a 25-m² thermal infrared imaged area increased from 2 to 20% but was highly variable and weakly correlated to discharge and precipitation. Rainfall onto mapped, near-stream saturated areas accounted for little of the flow generated within a headwater reach. Streamflow isotopic composition at the 6-ha, headwater outlet deflected little throughout the 30-day rainfall period, 0.7 and 1.2 ‰ for δ¹⁸O and δ²H, respectively. Groundwater exfiltration within the saturated area generated nearly all of the streamflow as well the persistent saturation throughout the event. Thirdly, I examined the underlying controls on streamwater chemostasis in a forested, headwater catchment. Thermal infrared imagery was simultaneously used to quantify saturation expansion and groundwater exfiltration hotspots within the headwater reach. Streamflow during a series of rainfall events responded chemostatically, most… Advisors/Committee Members: McDonnell, Jeffrey (advisor), Haggerty, Roy (committee member).

Subjects/Keywords: thermal infrared imagery; Stream measurements

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APA (6^th Edition):

Frentress, J. (2015). The role of near-stream zones on flow, chemistry and isotopic composition at the headwater scale. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/57899

Chicago Manual of Style (16^th Edition):

Frentress, Jay. “The role of near-stream zones on flow, chemistry and isotopic composition at the headwater scale.” 2015. Doctoral Dissertation, Oregon State University. Accessed February 28, 2021. http://hdl.handle.net/1957/57899.

MLA Handbook (7^th Edition):

Frentress, Jay. “The role of near-stream zones on flow, chemistry and isotopic composition at the headwater scale.” 2015. Web. 28 Feb 2021.

Vancouver:

Frentress J. The role of near-stream zones on flow, chemistry and isotopic composition at the headwater scale. [Internet] [Doctoral dissertation]. Oregon State University; 2015. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1957/57899.

Council of Science Editors:

Frentress J. The role of near-stream zones on flow, chemistry and isotopic composition at the headwater scale. [Doctoral Dissertation]. Oregon State University; 2015. Available from: http://hdl.handle.net/1957/57899

Cornell University

23. Collins, Sarah. Understanding The Effects Of Consumers And Light On Stream Food Webs Using Stable Isotope Techniques.

Degree: PhD, Ecology, 2015, Cornell University

URL: http://hdl.handle.net/1813/39415

► In headwater streams that are heavily shaded by surrounding forests, primary production is often low and inputs of particulate and dissolved organic carbon from terrestrial… (more)

▼ In headwater streams that are heavily shaded by surrounding forests, primary production is often low and inputs of particulate and dissolved organic carbon from terrestrial environments are important resources in food webs. Stable isotope methods are useful for quantifying food web fluxes of different carbon sources but data are frequently difficult to interpret. Here, I developed novel stable isotope techniques to study the role of terrestrial energy subsidies in stream food webs in Trinidad and Tobago and the Adirondack region of New York. Specifically, I sought to determine the importance of carbon sources from terrestrial environments versus in-stream primary production in streams with varying light availability and fish communities. I compared natural canopy streams to streams with experimentally thinned canopies using a novel carbon and nitrogen dual isotope tracer technique. Comparing data from 13 C-acetate tracers, which are assimilated only by heterotrophic bacteria, and 15N- ammonium tracers, which are assimilated by both heterotrophs and autotrophs, allowed me to evaluate the relative importance of terrestrial carbon inputs and heterotrophic pathways. I also compared food webs in Trinidad and Adirondack streams along a natural gradient of canopy cover using stable isotopes of hydrogen, which indicated how much terrestrial organic matter was assimilated by consumers. In the Adirondacks, terrestrial carbon subsidies and heterotrophic bacteria were important resources for consumers, but the amount of bacterial carbon assimilated by invertebrates declined when light availability and primary production were experimentally increased. Fish introductions and light availability both influenced food webs in Trinidad streams. There were increased fluxes of carbon and nitrogen to consumers in streams with high light. Effects of fish introduction varied by consumer taxon, with strong positive effects of fish on filter-feeding invertebrates, and weaker positive effects of fish on grazer invertebrates. In comparative studies across light gradients, most consumer taxa were flexible in the amount of terrestrial carbon they assimilated, with higher reliance on terrestrial subsidies in streams with high canopy cover than in larger streams with less canopy cover. Overall, these results suggest that the light environment can have a strong influence on the role of terrestrial subsidies in streams. Advisors/Committee Members: Hairston Jr, Nelson George (chair), Flecker, Alexander S (coChair), Kraft, Clifford Elliott (committee member), Sparks, Jed P. (committee member), Findlay, Stuart (committee member).

Subjects/Keywords: stream ecology; allochthony; stable isotope

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APA (6^th Edition):

Collins, S. (2015). Understanding The Effects Of Consumers And Light On Stream Food Webs Using Stable Isotope Techniques. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/39415

Chicago Manual of Style (16^th Edition):

Collins, Sarah. “Understanding The Effects Of Consumers And Light On Stream Food Webs Using Stable Isotope Techniques.” 2015. Doctoral Dissertation, Cornell University. Accessed February 28, 2021. http://hdl.handle.net/1813/39415.

MLA Handbook (7^th Edition):

Collins, Sarah. “Understanding The Effects Of Consumers And Light On Stream Food Webs Using Stable Isotope Techniques.” 2015. Web. 28 Feb 2021.

Vancouver:

Collins S. Understanding The Effects Of Consumers And Light On Stream Food Webs Using Stable Isotope Techniques. [Internet] [Doctoral dissertation]. Cornell University; 2015. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1813/39415.

Council of Science Editors:

Collins S. Understanding The Effects Of Consumers And Light On Stream Food Webs Using Stable Isotope Techniques. [Doctoral Dissertation]. Cornell University; 2015. Available from: http://hdl.handle.net/1813/39415

Texas A&M University

24. Rafi, Khurram. Distribution of E. coli Levels and Recreation Use as Factor of Stream Order in the Central Great Plains, Central Oklahoma-Texas Plains, and South Central Plains Ecoregions.

Degree: MS, Water Management and Hydrological Science, 2015, Texas A&M University

URL: http://hdl.handle.net/1969.1/155271

► This study examines the relationship of E. coli concentrations and recreational use to both stream order and watershed size. To determine possible ecoregion effects, the… (more)

Subjects/Keywords: E. coli; Stream order

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APA (6^th Edition):

Rafi, K. (2015). Distribution of E. coli Levels and Recreation Use as Factor of Stream Order in the Central Great Plains, Central Oklahoma-Texas Plains, and South Central Plains Ecoregions. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/155271

Chicago Manual of Style (16^th Edition):

Rafi, Khurram. “Distribution of E. coli Levels and Recreation Use as Factor of Stream Order in the Central Great Plains, Central Oklahoma-Texas Plains, and South Central Plains Ecoregions.” 2015. Masters Thesis, Texas A&M University. Accessed February 28, 2021. http://hdl.handle.net/1969.1/155271.

MLA Handbook (7^th Edition):

Rafi, Khurram. “Distribution of E. coli Levels and Recreation Use as Factor of Stream Order in the Central Great Plains, Central Oklahoma-Texas Plains, and South Central Plains Ecoregions.” 2015. Web. 28 Feb 2021.

Vancouver:

Rafi K. Distribution of E. coli Levels and Recreation Use as Factor of Stream Order in the Central Great Plains, Central Oklahoma-Texas Plains, and South Central Plains Ecoregions. [Internet] [Masters thesis]. Texas A&M University; 2015. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1969.1/155271.

Council of Science Editors:

Rafi K. Distribution of E. coli Levels and Recreation Use as Factor of Stream Order in the Central Great Plains, Central Oklahoma-Texas Plains, and South Central Plains Ecoregions. [Masters Thesis]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/155271

Penn State University

25. Kerr, Patrick Corbitt. THE SIGINIFICANCE OF MODEL STRUCTURE IN ONE-DIMENSIONAL STREAM SOLUTE TRANSPORT MODELS WITH MULTIPLE TRANSIENT STORAGE ZONES .

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/12471

► Transient storage models are used to simulate solute transport in streams. The processes characterized and the parameters interpreted from these models are important to our… (more)

▼ Transient storage models are used to simulate solute transport in streams. The processes characterized and the parameters interpreted from these models are important to our understanding of biogeochemical cycling. Single storage zone (1-SZ) models lump portions of the stream with different biogeochemical and hydrodynamic characteristics into one zone. Recent progress has been made to develop transient storage zone models with two-storage zones (2-SZ) to discriminate between surface and subsurface (hyporheic) exchange. Surface transient storage (STS) is the non-advective portion of channels that surround and sometimes divide the main channel, while hyporheic transient storage (HTS) is the wetted subsurface area adjacent to the stream. These storage zones are subject to different physical and biogeochemical conditions. Thus, to advance biogeochemical models, we want to separate the effects of these storage zones. In models with multiple transient storage zones, each storage zone can exchange with the stream, another storage zone, or both. In a competing model structure both zones are connected to the stream at the same location and the stream interacts with the STS and HTS separately; whereas in a nested model structure the STS interacts directly with the stream and the HTS interacts only with the STS. Residence time metrics used to compare single transient storage models were adapted for use with the competing and nested 2-SZ models and are model-structure based. We investigated the transient storage characteristics of a 460-m reach of Laurel Run, a first-order stream in central Pennsylvania, using a 1-SZ, nested 2-SZ, and competing 2-SZ model configurations. This study modeled the solute breakthrough curves from three salt tracer experiments ranging from high to low flows and compared the results. Results show that both the competing and nested 2-SZ models iv may accurately simulate the BTCs obtained in the STS and main channel. The calibrated model parameters differ for the three model structures, and therefore so does the interpretation of associated transient storage metrics. The new 2-SZ metrics were applied to this data and the results suggest that the interpretation of transient storage processes and its relationship with biogeochemical cycling processes is dependent on model structure. Advisors/Committee Members: Mike Gooseff, Thesis Advisor/Co-Advisor, Michael N Gooseff, Thesis Advisor/Co-Advisor.

Subjects/Keywords: transient storage; modeling; hyporheic; stream

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APA (6^th Edition):

Kerr, P. C. (2011). THE SIGINIFICANCE OF MODEL STRUCTURE IN ONE-DIMENSIONAL STREAM SOLUTE TRANSPORT MODELS WITH MULTIPLE TRANSIENT STORAGE ZONES . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12471

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kerr, Patrick Corbitt. “THE SIGINIFICANCE OF MODEL STRUCTURE IN ONE-DIMENSIONAL STREAM SOLUTE TRANSPORT MODELS WITH MULTIPLE TRANSIENT STORAGE ZONES .” 2011. Thesis, Penn State University. Accessed February 28, 2021. https://submit-etda.libraries.psu.edu/catalog/12471.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kerr, Patrick Corbitt. “THE SIGINIFICANCE OF MODEL STRUCTURE IN ONE-DIMENSIONAL STREAM SOLUTE TRANSPORT MODELS WITH MULTIPLE TRANSIENT STORAGE ZONES .” 2011. Web. 28 Feb 2021.

Vancouver:

Kerr PC. THE SIGINIFICANCE OF MODEL STRUCTURE IN ONE-DIMENSIONAL STREAM SOLUTE TRANSPORT MODELS WITH MULTIPLE TRANSIENT STORAGE ZONES . [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Feb 28]. Available from: https://submit-etda.libraries.psu.edu/catalog/12471.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kerr PC. THE SIGINIFICANCE OF MODEL STRUCTURE IN ONE-DIMENSIONAL STREAM SOLUTE TRANSPORT MODELS WITH MULTIPLE TRANSIENT STORAGE ZONES . [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12471

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

26. Huang, Yibin. Stream Depletion and Pumping Test Interpretation in a Horizontally Anisotropic Aquifer Near a Stream.

Degree: MS, Water Management and Hydrological Science, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/174642

► Conventional pumping test theories such as Theis solution often assume a horizontally isotropic media. Horizontal anisotropy exists in certain aquifer settings and its impact on… (more)

Subjects/Keywords: Stream depletion; Anisotropy; Pumping test

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APA (6^th Edition):

Huang, Y. (2016). Stream Depletion and Pumping Test Interpretation in a Horizontally Anisotropic Aquifer Near a Stream. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/174642

Chicago Manual of Style (16^th Edition):

Huang, Yibin. “Stream Depletion and Pumping Test Interpretation in a Horizontally Anisotropic Aquifer Near a Stream.” 2016. Masters Thesis, Texas A&M University. Accessed February 28, 2021. http://hdl.handle.net/1969.1/174642.

MLA Handbook (7^th Edition):

Huang, Yibin. “Stream Depletion and Pumping Test Interpretation in a Horizontally Anisotropic Aquifer Near a Stream.” 2016. Web. 28 Feb 2021.

Vancouver:

Huang Y. Stream Depletion and Pumping Test Interpretation in a Horizontally Anisotropic Aquifer Near a Stream. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1969.1/174642.

Council of Science Editors:

Huang Y. Stream Depletion and Pumping Test Interpretation in a Horizontally Anisotropic Aquifer Near a Stream. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/174642

Penn State University

27. Whited, Nathan Robert. Pre- and Post- Macroinvertebrate Populations in Restored Stream Reaches in Pennsylvania .

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/12016

► Three streams in Pennsylvania were sampled to determine if the stream restoration practices implemented affected the macroinvertebrate populations and diversity in the restored reach. Macroinvertebrate… (more)

▼ Three streams in Pennsylvania were sampled to determine if the stream restoration practices implemented affected the macroinvertebrate populations and diversity in the restored reach. Macroinvertebrate data from Roaring Branch, Little Fishing Creek, and Halfmoon Creek taken in 2004 before the restoration work was done is compared to data collected in 2010 after the stream restoration was completed. The macroinvertebrate samples were collected using the Rapid Bioassessment Protocol and counted and scored based on the United States Environmental Protection Agency (USEPA) modified bioassessment sheet. The three streams were restored using a variety of stream restoration techniques such as in stream restoration structures, riparian buffer establishment, and streambank fencing. The combination of these restoration techniques increased the habitat for macroinvertebrates in the restored stream reach. As a result of this, there were a number of taxa that were found in the restored reaches that were not present before the restoration work was done. The macroinvertebrate data from the three streams showed a large increase from 2004 to 2010. The diversity of the macroinvertebrate community increased by an average of 72% in the restored reaches. The percentage of pollution intolerant taxa (Group 1) also increased in each of the stream reaches, while the percentage of pollution tolerant taxa (Group 3) decreased. This shows that the restored stream reaches have become more accommodating to macroinvertebrates that need cleaner water in which to live. Macroinvertebrates are a good way to assess the water quality of a stream. The water quality score, which is obtained from working through the USEPA bioassessment sheet, is a score assigned to the stream based on the number and types of macroinvertebrates collected. This water quality score increased by an average of 67% from before to after restoration in the three restored reaches. Advisors/Committee Members: Albert R Jarrett, Thesis Advisor/Co-Advisor, Albert R Jarrett, Thesis Advisor/Co-Advisor.

Subjects/Keywords: benthic macroinvertebrates; stream restoration

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APA (6^th Edition):

Whited, N. R. (2011). Pre- and Post- Macroinvertebrate Populations in Restored Stream Reaches in Pennsylvania . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12016

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Whited, Nathan Robert. “Pre- and Post- Macroinvertebrate Populations in Restored Stream Reaches in Pennsylvania .” 2011. Thesis, Penn State University. Accessed February 28, 2021. https://submit-etda.libraries.psu.edu/catalog/12016.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Whited, Nathan Robert. “Pre- and Post- Macroinvertebrate Populations in Restored Stream Reaches in Pennsylvania .” 2011. Web. 28 Feb 2021.

Vancouver:

Whited NR. Pre- and Post- Macroinvertebrate Populations in Restored Stream Reaches in Pennsylvania . [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Feb 28]. Available from: https://submit-etda.libraries.psu.edu/catalog/12016.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Whited NR. Pre- and Post- Macroinvertebrate Populations in Restored Stream Reaches in Pennsylvania . [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12016

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

28. Hwang, Jeong-Hyon. Fast and Highly-Available Stream Processing.

Degree: PhD, Computer Science, 2008, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:25/

► Recently, there has been significant interest in applications where high-volume, continuous data streams need to be processed with low latency. Such applications include financial market… (more)

▼ Recently, there has been significant interest in applications where high-volume, continuous data streams need to be processed with low latency. Such applications include financial market monitoring, network monitoring, intrusion detection, call analysis, battlefield monitoring, asset tracking, and ecosystem monitoring. Since these applications monitor real-time events, the value of a result decays rapidly over time. Therefore, low-latency processing is a key requirement. Stream processing systems enable efficient implementation of the aforementioned applications. Currently, many such systems are geared toward distributed processing because a large number of applications inherently involve geographically dispersed data sources and the processing capability of a system improves as more servers are used. However, the more computation and communication resources, the higher the odds of failure. In stream processing, a failure prevents low-latency processing because it blocks the flow of data streams. To make matters worse, it may also result in losing data essential to producing correct results. In this dissertation, we propose various techniques that realize both reliable and timely processing of data streams in the face of server and network failures. We first discuss our basic recovery approaches, while comparing them in terms of recovery speed, CPU and network utilization, as well as their relationship to various recovery semantics. Next, we describe a fast recovery technique for commodity server clusters. In this technique, operators on each server are backed up on different servers and thus can be recovered in parallel. This technique assigns backup servers and schedules checkpoints in a manner that maximizes the recovery speed. Finally, we discuss our approach for Internet-scale stream processing. In this approach, multiple operator replicas send outputs to downstream replicas, allowing each replica to use whichever data arrives first. To further reduce latency, replicas run without coordination, possibly processing data in different orders. Despite this relaxation, the approach guarantees that applications always receive the same results as in the non-replicated, failure-free case. It also deploys replicas at locations that effectively improve performance and availability. Our experimental results demonstrate the effectiveness of the approaches above. These results were obtained from a server cluster at Brown University and a worldwide network testbed called PlanetLab. Advisors/Committee Members: Zdonik, Stan (director), Cetintemel, Ugur (reader), Jannotti, John (reader).

Subjects/Keywords: Stream Processing

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APA (6^th Edition):

Hwang, J. (2008). Fast and Highly-Available Stream Processing. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:25/

Chicago Manual of Style (16^th Edition):

Hwang, Jeong-Hyon. “Fast and Highly-Available Stream Processing.” 2008. Doctoral Dissertation, Brown University. Accessed February 28, 2021. https://repository.library.brown.edu/studio/item/bdr:25/.

MLA Handbook (7^th Edition):

Hwang, Jeong-Hyon. “Fast and Highly-Available Stream Processing.” 2008. Web. 28 Feb 2021.

Vancouver:

Hwang J. Fast and Highly-Available Stream Processing. [Internet] [Doctoral dissertation]. Brown University; 2008. [cited 2021 Feb 28]. Available from: https://repository.library.brown.edu/studio/item/bdr:25/.

Council of Science Editors:

Hwang J. Fast and Highly-Available Stream Processing. [Doctoral Dissertation]. Brown University; 2008. Available from: https://repository.library.brown.edu/studio/item/bdr:25/

Addis Ababa University

29. Chombie, Bitew Zegeye. Analysis of Logistics Chain of Fertilizer from Port and Improved Seed from Production Area to Farmers .

Degree: 2012, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/4128

► Ethiopia is a landlocked country and movement of the import and export commodities depends on neighboring coastal countries port. The country is challenged in traversing… (more)

▼ Ethiopia is a landlocked country and movement of the import and export commodities depends on neighboring coastal countries port. The country is challenged in traversing through the neighboring countries due to high port charges and less effective logistics systems in the inland activities of import –export commodities. The development of logistics concept is in an infant stage which has not given special concern till recent years. There is a larger gap between the industry development and the logistics concept nationally. This thesis was to assess the logistics chain of fertilizer from Djibouti port and maize improved seed from production area, observe the seasonality of fertilizer flow, minimize the logistics chain costs and lead time, identification of barriers of fertilizer flow throughout the distribution network and make recommendations for efficient and effective logistics chain. Logistics chain of fertilizer was not well coordinated between the stakeholders. Warehouse-transport interface was the main challenge in overall efficiencies of logistics chain. The challenges are mainly unloading problems due to uncoordinated cooperative unions with transporters and importers. Late delivery of fertilizer to farmers especially during the farming time affected the effective application to the farm. The maize improved seed price was observed incomparable with the selling prices of farmers’ product of similar quantity. Seasonality of fertilizer flow from port was checked with one way ANOVA comparison test using SPSS 15.0. Demand forecasting was done with time series method and the forecasted value was adjusted with seasonal index. Location analysis was done with center of gravity method using the annual consumption of fertilizer for each zone of the country. The coordinates of each zone for this method was determined from GIS 9.3 based on the mean center of woredas’ population within the zone. To determine the dominant consumer level of fertilizer in Ethiopia, Cluster Mapping and hotspot analysis was made using GIS 9.3 based on the average six year consumption levels of each zone. Route optimization was also made with GIS 9.3 from Djibouti port to the central warehouses. The result might not be reliable for some routes as it was not used travel time for the optimization instead travel distance which provided the shortest possible distance for the un updated national digital road networks. The pair wise mean comparison of the four quarters indicated that there were a significant different fertilizer flow during quarter 1 (September, October, November) with Quarter 2 (December, January, February) and Quarter 3(March, April, May) but not different with Quarter 4(June, July, August). Using location analysis, proposed warehouses were suggested for efficient distributions of fertilizer throughout the country. The optimum route obtained in some cases required to be checked accounting for road condition. Advisors/Committee Members: Prof. Girma Gebresenbet (advisor).

Subjects/Keywords: Road and Transport Engineering Stream

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APA (6^th Edition):

Chombie, B. Z. (2012). Analysis of Logistics Chain of Fertilizer from Port and Improved Seed from Production Area to Farmers . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/4128

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chombie, Bitew Zegeye. “Analysis of Logistics Chain of Fertilizer from Port and Improved Seed from Production Area to Farmers .” 2012. Thesis, Addis Ababa University. Accessed February 28, 2021. http://etd.aau.edu.et/dspace/handle/123456789/4128.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chombie, Bitew Zegeye. “Analysis of Logistics Chain of Fertilizer from Port and Improved Seed from Production Area to Farmers .” 2012. Web. 28 Feb 2021.

Vancouver:

Chombie BZ. Analysis of Logistics Chain of Fertilizer from Port and Improved Seed from Production Area to Farmers . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2021 Feb 28]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/4128.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chombie BZ. Analysis of Logistics Chain of Fertilizer from Port and Improved Seed from Production Area to Farmers . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/4128

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ghana

30. Adomako, L.A.B. Occurrence of Antibiotic Resistant Bacteria in the Legon Sewage Treatment Plant and the Receiving Onyasia Stream; Implications for Wastewater Reuse.

Degree: 2019, University of Ghana

URL: http://ugspace.ug.edu.gh/handle/123456789/35351

► Although wastewater treatment plants efficiently reduce the loads of pathogens in wastewater, the conventional treatment processes do not show significant removal of antibiotics, antibiotic resistant… (more)

▼ Although wastewater treatment plants efficiently reduce the loads of pathogens in wastewater, the conventional treatment processes do not show significant removal of antibiotics, antibiotic resistant bacteria and antibiotic resistant genes, resulting in the introduction of these contaminants into the environment. This has human health implications for wastewater reuse and the use of effluent receiving water bodies as irrigation sources. Humans may be exposed to resistant bacteria and render treatment options for infections caused by resistant pathogens ineffective. In order to assess the occurrence of antibiotic resistance bacteria from the Legon Sewage Treatment Plant effluent and the receiving Onyasia stream, antibiotic resistance profiles of Aeromonas hydrophila, Pseudomonas aeruginosa and Escherichia coli isolated from wastewater and the Onyasia stream were evaluated for resistance to selected antibiotics. Wastewater and surface water samples were collected once per month in triplicate over a six-month period from two sampling sites in the Legon Sewage Treatment Plant (influent and effluent) as well as three sites from the Onyasia stream with reference to the treatment plant discharge point (upstream, outfall and downstream). Aeromonas hydrophila, Pseudomonas aeruginosa and Escherichia coli isolates were tested for resistance to Gentamicin, Amoxicillin clavulanate, Tetracycline, Ciprofloxacin, Cefuroxime, Aztreonam, Imipenem and Ceftazidime using the Kirby-Bauer disc diffusion method. E. coli, Aeromonas hydrophila and Pseudomonas aeruginosa isolates showed high resistance patterns to most tested antibiotics. Escherichia coli and Aeromonas hydrophila isolates were most resistant to Amoxicillin clavulanate (57% and 68% respectively), Cefuroxime (52% and 43% respectively), and Tetracycline (49% and 31% respectively). In contrast, they were susceptible to Imipenem (91% and 78% respectively) Gentamicin (83% and 91%) Aztreonam (74% and 73% respectively), and Ciprofloxacin (71% and 78%). Pseudomonas aeruginosa isolates showed high resistance to Aztreonam (37%) and Ciprofloxacin (33%). Pseudomonas aeruginosa isolates sensitivity to Imipenem (96%), Gentamicin (22%) and Ceftazidime (89%) was high. Resistant rates were high in effluent, outfall and downstream isolates, Significant differences (p < 0.05) were observed between upstream and downstream sampling sites relative to the wastewater treatment plant discharge point (outfall) and the rate of Escherichia coli and Aeromonas hydrophila isolate resistance to Amoxicillin, Cefuroxime and Tetracycline and Pseudomonas aeruginosa isolate resistance to Aztreonam and Ciprofloxacin. There were also levels of multi-drug resistant isolates in downstream sampling site compared to upstream sampling site. Results show that the discharge of treated wastewater effluent into water bodies are potentially significant contributors to the dissemination and persistence of antibiotic resistance in the receiving watershed. These findings also have human health…

Subjects/Keywords: Bacteria; Sewage; Onyasia Stream; Wastewater

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APA (6^th Edition):

Adomako, L. A. B. (2019). Occurrence of Antibiotic Resistant Bacteria in the Legon Sewage Treatment Plant and the Receiving Onyasia Stream; Implications for Wastewater Reuse. (Masters Thesis). University of Ghana. Retrieved from http://ugspace.ug.edu.gh/handle/123456789/35351

Chicago Manual of Style (16^th Edition):

Adomako, L A B. “Occurrence of Antibiotic Resistant Bacteria in the Legon Sewage Treatment Plant and the Receiving Onyasia Stream; Implications for Wastewater Reuse. ” 2019. Masters Thesis, University of Ghana. Accessed February 28, 2021. http://ugspace.ug.edu.gh/handle/123456789/35351.

MLA Handbook (7^th Edition):

Adomako, L A B. “Occurrence of Antibiotic Resistant Bacteria in the Legon Sewage Treatment Plant and the Receiving Onyasia Stream; Implications for Wastewater Reuse. ” 2019. Web. 28 Feb 2021.

Vancouver:

Adomako LAB. Occurrence of Antibiotic Resistant Bacteria in the Legon Sewage Treatment Plant and the Receiving Onyasia Stream; Implications for Wastewater Reuse. [Internet] [Masters thesis]. University of Ghana; 2019. [cited 2021 Feb 28]. Available from: http://ugspace.ug.edu.gh/handle/123456789/35351.

Council of Science Editors:

Adomako LAB. Occurrence of Antibiotic Resistant Bacteria in the Legon Sewage Treatment Plant and the Receiving Onyasia Stream; Implications for Wastewater Reuse. [Masters Thesis]. University of Ghana; 2019. Available from: http://ugspace.ug.edu.gh/handle/123456789/35351

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