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Dissertations / Theses on the topic 'In-stream experiments'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Cloran, Christina Elizabeth. "Investigating Nickel Flux and Toxicity in Clay Sediments with Batch and Stream Recirculating Flume Experiments." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1229973400.

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2

Bernard, David P. "Impact of stream acidification on invertebrates : drift response to in situ experiments augmenting aluminum ion concentrations." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24478.

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Recent evidence strongly suggests that aluminum toxicity is important in determining the structural and functional characteristics of freshwater communities affected by acid precipitation. To determine the effect dissolved aluminum has on lotic invertebrates previously unexposed to anthropogenic acidification, experiments were carried out in a second-order headwater stream 50 km east of Vancouver, British Columbia during August 1982. In three separate experiments, HC1 and/or A1C1₃ were added to Mayfly Creek during daylight hours, increasing acidity from pH 6.9 - 7.0 to pH 5.8 - 6.0 and total a

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3

Blasch, Kyle William. "Streamflow timing and estimation of infiltration rates in an ephemeral stream channel using variably saturated heat and fluid transport methods." Diss., The University of Arizona, 2003. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2003_253_sip1_w.pdf&type=application/pdf.

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4

Brown, Glen, and n/a. "Towards an in situ technique for investigating the role nutrients play in epilithon growth in an Australian upland stream." University of Canberra. School of Resource, Environmental & Heritage Sciences, 2001. http://erl.canberra.edu.au./public/adt-AUC20060614.171246.

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There is limited knowledge and understanding of the role of nutrients and effect of herbivore grazing on epilithon production in Australian upland rivers. Before investigating these processes, a method was required that will allow the study of factors (physical, chemical and biological) that affect epilithon abundance and distribution in lotic systems. The Thredbo River, Kosciusko National Park, New South Wales, provided an opportunity to conduct this investigation because it: is relatively undisturbed; has been intensely studied; is easily accessed; and is of appropriate width and depth to co

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5

Grubh, Archis R. "Effects of anthropogenic disturbances and biotic interactions on stream biota in gulf coastal plain streams." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1155753270.

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6

Shelton, Jeremy Mark. "Impacts of non-native rainbow trout on stream food webs in the Cape Floristic Region, South Africa integrating evidence from surveys and experiments." Doctoral thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/6189.

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Includes abstract.<br>Includes bibliographical references.<br>Impacts of invasive predators may be influenced by whether or not native predators which function in the same way as the invasive predator exist in the recipient system. Impacts are expected to be strong in isolated systems lacking functionally similar predators because native species will be naïve to the foraging behaviour of the introduced predator, and because the invasion is likely to change the role which the native predator assemblage performs. In this thesis I studied how the introduction of a functionally novel predatory fis

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7

Bernal, Berenguer Susana. "Nitrogen storm responses in an intermittent Meditterranean stream." Doctoral thesis, Universitat de Barcelona, 2006. http://hdl.handle.net/10803/1436.

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The amount of dissolved inorganic nitrogen delivered to streams and groundwater has substantially increased in the last decades due to anthropogenic impacts. This fact has stimulated research on processes related to the nitrogen cycling in order to elucidate the ability of terrestrial and aquatic ecosystems in controlling nitrogen loads. Some of these studies pointed out during storms streamwater chemistry is significantly altered. However, because of the inherent difficulty of an extensive field experimental setting for dealing with episodic storms, studies focused on hydrological processes o

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8

Whittle, Don. "Stream mesocosms in ecological risk assessment : experimental, analytical and ecological considerations." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339940.

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9

Tin, Tin Htwe. "Bed Deformation and Navigable Channel Characteristics in Braided Stream." Kyoto University, 2018. http://hdl.handle.net/2433/235073.

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10

Harris, Rebecca Margaret Louise. "The effect of experimental drought disturbance on macroinvertebrate assemblages in stream mesocosms." Thesis, University of Birmingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435312.

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11

Dinger, Matthew J. "Experimental study of the three-stream scalar mixing in a turbulent coaxial jet." Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1249066149/.

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12

Martinskas, Vytautas. "The Modernistic Experiments in Gertrude Stein’s and John Dos Passos’s Creative Works." Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120831_103048-28157.

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The object of the Bachelor Thesis is the modernistic experiments in Gertrude Stein’s and Jon Dos Passos’ creative works. The aim of the present research is to analyze the modernistic experiments in Gertrude Stein’s and John Dos Passos’s creative works. In order to achieve the aim the following objectives have been set: 1) to present and analyze theoretical material concerning modernism; 2) to analyze modernistic experiments in Gertrude Stein’s and John Dos Passos’s creative works; 3) to compare G. Stein’s and J. Dos Passos’s artistic linguistic experiments and creative means. The methodology

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13

Poff, Boris, Daniel G. Neary, and Gregory P. Asner. "How Useful is LiDar in Establishing a Stream Gauging Network in a Tropical Experimental Forest." Arizona-Nevada Academy of Science, 2008. http://hdl.handle.net/10150/296688.

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14

Bankey, Laura Anne. "Responses of Cytochrome P450IA in Freshwater Fish Exposed to Pulp Mill Effluents in Experimental Stream Channels." W&M ScholarWorks, 1993. https://scholarworks.wm.edu/etd/1539617660.

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15

Karbassi, Massoumeh. "Analytical and experimental studies of the stability limits of nonpremixed flames in a co-flowing stream." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq24541.pdf.

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16

Chadwick, Kenneth Michael. "An experimental investigation of the breakup of a viscoelastic non-newtonian fluid in a supersonic stream." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/42082.

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17

Weiss, Julien. "Experimental determination of the free stream disturbance field in the short duration supersonic wind tunnel of Stuttgart University." [S.l. : s.n.], 2002. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10316296.

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18

Kelsey, Scott Alan. "Impact of Land Use on Headwater Stream Organic and Inorganic Carbon Export in a Temperate Midwestern Experimental Watershed." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1460651004.

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19

Schneider, Judith. "The response of biota in experimental stream channels to a 24-hour exposure to the herbicide, Velpar L." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/9630.

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Ten experimental stream channels, fed from a Laurentian steam were used to examine the short-term impact of a pulse of Velpar L on stream periphyton and invertebrates. Velpar L was added to five alternating channels for 24 hours with the other five channels serving as controls. The mean concentration of hexazinone in the treatment channels varied over time from 145 $\mu$g L$\sp{-1}$ to 432 $\mu$g L$\sp{-1}$. Periphyton chlorophyll a-specific productivity was significantly reduced during the Velpar L treatment. Within 24 hours after the termination of the Velpar L treatment, productivity return

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20

Morris, Noel Alexander. "An experimental and computational study of moderately under-expanded rocket exhaust plumes in a co-flowing hypersonic free stream." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282347.

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21

Papanikolaou, Nancy. "An experimental investigation of the flow structure and stability limits of jet diffusion flames in a co-flowing oxidizing stream." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0013/NQ31062.pdf.

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22

Vander, Vorste Ross. "The hyporeic zone as a primary source of invertebrate community resilience in intermittent alluvial rivers : evidence from field and mesocosm experiments." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10259/document.

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Un paradigme émergent prédit que les perturbations influencent les processus qui déterminent l'organisation des communautés. L'assèchement des rivières (disparition complète d'eau de surface pour une durée déterminée) est une perturbation naturelle affectant les cours d'eau dans de nombreuses régions du monde. De plus en plus de cours d'eau pérenne s'assèchent en réponse aux changements globaux. Toutefois, l'effet de ces assèchements sur les communautés aquatiques et les processus impliqués dans leur résilience restent mal quantifié et mal compris. A travers quatre études allant de suivis de t

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23

Diehl, Melinda S. "Using Stream Chemistry to Evaluate Experimental Acidification and Natural Recovery in the Paired Catchments at the Bear Brook Watershed in Maine (1989-2003)." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/DiehlMS2006.pdf.

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24

Holm, Christian Franz. "Spatial habitat use of young-of-the-year Atlantic salmon (Salmo salar) in response to changing stream discharge and population density : testing the instream flow model concept in a controlled experiment." Thesis, University of Stirling, 2001. http://hdl.handle.net/1893/26677.

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Many rivers are affected by man-induced regulations of stream-flow. The effects of these on the instream biota have been studied widely and it is generally accepted that assessment tools for the management of regulated rivers are of vital importance. In particular predictive instream habitat models like the Physical Habitat Simulation Model (PHABSIM) have become popular for this purpose with users world-wide. These models predict discharge-related changes in instream habitat availability for target species by modelling the hydraulic geometry of the river reach on the one and the microhabitat p

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25

Vázquez, Garcia Eusebi. "Influence of hydrology on dissolvedorganic matter quantity and properties in a temporal Mediterranean stream = Influència de la hidrologia sobre la quantitat i disponibilitat de la matèria orgànica dissolta en una riera temporal mediterrània." Doctoral thesis, Universitat de Barcelona, 2013. http://hdl.handle.net/10803/128863.

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The studies presented in this thesis focus on the biogeochemistry of dissolved organic matter (DOM) in an intermittent stream in a Mediterranean climate zone, with great emphasis on extreme hydrologic events: floods and the seasonal drought period. The changes in concentration and molecular weight, and the properties, especially those related to its origin, and bioavailability to the microbial community. The samplings were carried out during a wide span of years in order to characterize the concentration – discharge responses (C-Q) initially, and more intensively during the different periods o

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26

Peipoch, Güell Marc. "The role of Primary Uptake Compartments on stream Nitrogen cycling = El paper dels Compartiments Primaris en el ciclatge del Nitrogen als ecosistemes fluvials." Doctoral thesis, Universitat de Barcelona, 2014. http://hdl.handle.net/10803/146351.

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The main goal of this thesis is to investigate how (15)N natural abundances can help understanding the role of different primary uptake compartments (i.e., biofilm, filamentous algae, bryophytes, macrophytes; PUCs) on stream nutrient retention. The experimental design of this thesis involved the examination of patterns of variability in the (15)N signatures of Dissolved Inorganic Nitrogen (DIN) and PUCs at three different spatial scales: the watershed/global scale, the reach scale, and the habitat scale; as well as the (15)N transfer between them. At each level of organization, a common goal

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27

Bastias, Álamo Elliot. "The role of leaf litter quality and streambed hydro-morphology on in-stream leaf litter dynamics = El rol de la qualitat de la fullaraca i de la hidro-morfologia del tram fluvial en les dinàmiques de la fullaraca als rierols." Doctoral thesis, Universitat de Barcelona, 2018. http://hdl.handle.net/10803/586045.

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Understanding the dynamics of leaf litter inputs in streams involves assessment of retention, spatial distribution and processing of leaf litter inputs. However, leaf litter dynamics in streams has been mostly studied by determining the controlling factors of leaf litter processing, ignoring if leaf litter inputs are retained within the streams, and how these inputs are spatially distributed within the streambed. Furthermore, leaf litter processing in streams is not an isolated process because it can be linked with the dynamics of solutes of these streams. In fact, leachates from leaf litter

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28

Guarch, Ribot Alba. "Dissolved organic matter fluctuations in an intermittent headwater stream: from storm oscillations to decadal hydrological changes = Fluctuacions de la matèria orgànica dissolta en un riu de capçalera intermitent : de crescudes a canvis hidrològics decennals." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/406137.

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Dissolved organic matter (DOM) is an important source of carbon for aquatic microorganisms and it regulates many biogeochemical processes. Therefore, changes in river DOM concentration and properties could notably affect the functioning of fluvial and coastal ecosystems and alter the global carbon cycle. The DOM in headwater streams is strongly influenced by hydrology, as a consequence of the modification of catchment flow paths with high discharges. During storm events, the catchment hillsides are washed and terrigenous DOM is transported to rivers. In the Mediterranean region, the precipitat

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29

Hellyer, William N. "Assessment of Benthic Macroinvertebrate Community Impairment from High-Aluminum Acid Mine Drainage in Middleton Run, Ohio, USA and the Impact of Ingested Aluminum on Crayfish Growth." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1399465953.

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30

Braudrick, Christian A. "Entrainment, transport, and deposition of large woody debris in streams : results from a series of flume experiments." Thesis, 1997. http://hdl.handle.net/1957/33808.

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Although there has been extensive research on the geomorphic and ecologic role of large woody debris (LWD) in streams, the dynamics of LWD in streams are poorly known due to various measurement difficulties during floods. In this thesis I present the results of two flume experiments on the dynamics of wood in streams. The first experiment examined the effects of piece interaction on wood transport, while the second evaluated a theoretical model predicting the threshold of movement, and factors controlling the deposition of individual logs. Flume experiments allow us to model the wood movement

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31

Nowinski, John David. "Intra-meander groundwater-surface water interactions in a losing experimental stream." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-08-1873.

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Groundwater-surface water interactions between streams and shallow alluvial aquifers can significantly affect their thermal and chemical regimes and thus are critical for effective management of water resources and riparian ecosystems. Of particular significance is the hyporheic zone, an area delineated by subsurface flow paths that begin and end in surface water bodies. Although detailed work has examined hyporheic flow in the vertical dimension, some studies have suggested that the drop in a stream’s elevation as it flows downstream can laterally extend the hyporheic zone. This study exam

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32

Ho, Jinn-Tsair, and 何進財. "An Experimental Study of Fuel Droplet Ignition in Convective Hot Stream." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/51828098004168340298.

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33

Kao-ChingTang and 唐高晴. "Experimental Study of Submarine Braided Channels in response to Channel Width and Stream Power." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7vfrft.

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碩士<br>國立成功大學<br>水利及海洋工程學系<br>106<br>Submarine braided channels produced by turbidity currents have multiple bars and channels, similarly to the morphology of subaerial braided rivers. How-ever, we still have limited understanding for the mechanism of submarine braided channels. In this study, we used physical experiment to study the effects of limited channel width and stream power on the submarine braided channels. For the ex-periments, plastic sand was used to simulate deep-sea sediment, and saturated brine was used as the dense underflow. Our results show that total braiding inten-sity (BIT

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34

Kuok-PongLeong and 梁國邦. "Experimental Studies on Self-Ignition of a Hydrogen Transverse Jet in a Supersonic Free-Stream." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/59077094667765187495.

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碩士<br>國立成功大學<br>航空太空工程學系碩博士班<br>100<br>Fundamental to the success of hypersonic air-breathing propulsion system are the efficient injection, mixing, and combustion process that occur inside the combustion chamber. This research is focused on the self-ignitability of a transverse fuel, hydrogen gas, injected into a simulated supersonic combustor environment. Our experimental approach uses a reflected shock tunnel located in National Cheng Kung University, Taiwan, to provide the high total enthalpy flow associated with the scramjet combustor entry condition of M = 2.0, T0 = 2000 K, p0 = 12

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35

Chen, Yen-Tu, and 陳彥圖. "An Experiment on the Relation between Sediment Delivery and Deposition with a Storm Event in Torrential Stream." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/06973544104191355920.

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碩士<br>國立中興大學<br>水土保持學系<br>91<br>Abstract Lots of landslides were occurred and yielded sediments in mountain areas of Taiwan. The movement of these sediments will produce scouring or settling along the stream bed, depending on the hydraulic conditions. The unequilibrium of channel bed due to scouring or settling will influence the design for the torrent control works. Therefore, this study is going to investigate the sediment delivery and deposition in Gan-hsi watershed and conduct a simulated experiment in laboratory. A relation between sediment delivery and deposition will be tryin

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36

Weiss, Julien [Verfasser]. "Experimental determination of the free stream disturbance field in the short duration supersonic wind tunnel of Stuttgart University / vorgelegt von Julien Weiss." 2002. http://d-nb.info/965959546/34.

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37

Pritzl, Mark Robert. "The performance and application of drum-type seepage meters and a simple experiment to determine if denitrification is occurring in stream bottom sediments within the North Carolina coastal plain." 2004. http://www.lib.ncsu.edu/theses/available/etd-10312004-092423/unrestricted/etd.pdf.

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