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Dissertations / Theses on the topic 'Water pipes and soil samples'

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1

Phillips, Tom. "Detection of Phytophthora cinnamomi from bulk water and soil samples." Thesis, Phillips, Tom (2008) Detection of Phytophthora cinnamomi from bulk water and soil samples. Honours thesis, Murdoch University, 2008. https://researchrepository.murdoch.edu.au/id/eprint/32595/.

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2

Zhang, Xiaoxian. "Simulating water flow in variably saturated soils containing fractures and soil pipes." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285396.

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3

Silva, Francisca Gleiciane da. "Hydraulic conductivity of saturated soil and preferred flow in samples of land confined." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=17152.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>Understanding the processes related to the movement of water in soil profile is relevant to the management of soil and water resources. Hydraulic conductivity is an important soil property that affects this movement, but its determination in laboratory conditions requires that samples are contained in cylinders which can cause the presence of preferential flow through the soil wall interface. So, the goal of this work was to test the effect of increasing perimeter and height of the sample on saturated hydraulic conductiv
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4

Cooper, Joanne. "Electrochemical method for the rapid in situ screening of heavy metals in soil and water samples." Thesis, Cranfield University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443720.

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5

Idialu, Ofure Ruth. "Development of analytical techniques for detection and remediation of polychlorinated biphenyls in soil and water samples." Thesis, University of Strathclyde, 2016. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27526.

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6

Demissie, Gizachew Ababu. "Prediction of water distribution system pipes and isolation valves failure using Bayesian models with the consideration of soil corrosion and climate change." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/63464.

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Aging water distribution system pipes and valves are at stake due to progressive deterioration. Deterioration of the pipes and valves might be as a result of static, operational and dynamic (time-dependent) factors. The impact of these factors are manifested in the form of declined water quality, diminished hydraulic capacity, increased leakage rate and frequent pipe breaks. Reported literature shows that there are a limited number of comprehensive models which integrate characteristics of these factors. As a result, municipalities have been facing a challenge in predicting pipe failure and pr
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7

Liu, Zhen. "Multiphysics Simulation and Innovative Characterization of Freezing Soils." Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1350331910.

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8

Pietilä, H. (Heidi). "Development of analytical methods for ultra-trace determination of total mercury and methyl mercury in natural water and peat soil samples for environmental monitoring." Doctoral thesis, Oulun yliopisto, 2014. http://urn.fi/urn:isbn:9789526206202.

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Abstract Mercury is a global pollutant that accumulates easily in forest soils, even in remote areas. Mercury accumulated in soils can be subsequently released into surface waters causing an increased eco-toxicological and human health risk. The most toxic form of mercury to humans and wildlife is methyl mercury (MeHg), which can be formed in the environment via methylation processes. In freshwaters, MeHg is readily accumulated in fish, which are the main source of human exposure to MeHg. The determination of both total mercury and MeHg concentrations in environmental samples, such as natural
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9

McEwen, Amiana Marie. "Abundance, Distribution, and Geometry of Naturally Occurring Macropores in Stream Banks." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/95948.

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Preferential flow paths are areas of substantially higher permeability than surrounding media. Macropores and soil pipes are a type of preferential flow path where conduit-like voids in the subsurface are typically greater than three millimeters in diameter. They are known to occur in agricultural and forest soils, often as a result of biological and physical processes. Macropores also exist in stream banks and have the potential to enhance the exchange of water and solutes between the channel and riparian groundwater, yet the geographic distribution of bank macropores is unknown. Here we dete
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10

Burh, Priya Monalisha. "Microbial Analysis of Soil and Water Samples from Koel River in Rourkela, Odisha." Thesis, 2011. http://ethesis.nitrkl.ac.in/2376/1/priya_thesis_report-2011.pdf.

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Koel River from its early existence plays a significant role in molding the physical, economic and social development of Rourkela. It is acknowledged as one of the important elements in environmental aspect for its crucial function as water resources. As this project entitled “Microbial analysis of Soil and Water samples from Koel River in Rourkela, Odisha” deals with the water and soil quality of Koel River, the water and soil quality here were found out to be less polluted. The texture of the soil was analyzed to be clayey type which is appropriate for irrigation. The microorganisms isolat
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11

Behera, Shubhanath. "Physiocochemical and microbial analysis of water and soil samples in proposed coal mine area at latehar." Thesis, 2013. http://ethesis.nitrkl.ac.in/5406/1/109BT0019.pdf.

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The environmental quality is greatly focused on water and soil because of their importance in maintaining the human health and of the ecosystem. Soil and water are the two essential sources of life. The particulate organic matter, particulate mineral N and soil microbial biomass and their stocks over the soil profile are known to be indicators of soil. Water performs unique and indispensable activities in earth ecosystem, biosphere. Thus water is needed for recreation, transportation, and hydroelectric power, domestic uses etc. So for the quality testing physicochemical and biological paramete
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12

Delgado, Filipe Fernandes. "Deteção e identificação de bactérias do género Leptospira em amostras ambientais e em pequenos mamíferos, de dois distritos de Portugal, através de abordagens moleculares." Master's thesis, 2020. http://hdl.handle.net/10362/93351.

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RESUMO: A leptospirose é uma doença infeciosa zoonótica, emergente e de distribuição mundial, causada por espiroquetas patogénicas do género Leptospira. Os roedores são os principais reservatórios destas bactérias, disseminando-as no ambiente através da urina, onde podem sobreviver semanas ou meses em coleções de água doce e solos húmidos. É assim, importante conhecer a distribuição geográfica de Leptospira spp., bem como a respetiva taxa bacteriana. Assim, em dois distritos de Portugal (Lisboa e Setúbal), colheram-se 327 amostras de água (lagos, rios, fontes públicas e bebedouros), 96 amostr
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13

Ntumba, Nsaka Christophe. "Pollution by selected elements found in samples from the Wonderfonteinspruit region, South Africa and Grootfontein, Namibia." Thesis, 2012. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000357.

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M. Tech. Chemistry.<br>Objectives of this study was to assess the levels of heavy metals in bovine meat, hair, sediment, peat and water from the study areas using ICP-MS and internal standard calibration.The specific objectives are to: collect hair and meat of impala and cattle, sediment, peat, soil and water samples; digest samples; determine the level of some of the following heavy metals Cd, Cr, Cu, Hg, Mn, Pb, Sr, U, V depending on the background information on the above samples; compare the levels of Hg in sediment and peat using ICP-MS and Zeeman mercury spectrometer; determine the limit
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14

Su, Yi-Song, and 蘇奕菘. "Developments of ultrasound-assisted emulsification microextraction for the rapid analysis of organophosphorus pesticides for environmental water and soil samples using gas chromatography-electron capture detector." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/64773287317238589087.

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博士<br>國立中興大學<br>化學系所<br>98<br>A simple, efficient and novel pretreatment technique termed as ultrasound-assisted emulsification microextraction (USAEME) has been designed and studied for the rapid analysis of organophosphorus pesticides (OPPs) in environmental water and soil samples by gas chromatography-electron capture detector (GC-ECD). A specially designed extraction device was utilized for the facilitated collection of extraction solvent from the extraction unit for the extraction of OPPs in water and soil sample matrixes. A glass syringe as an extraction unit, a microsyringe for extracta
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15

Dube, Johnstone Nhlalo Michael. "Determination of the mineral composition of water and soil samples from Tshipise thermal spring, Mphephu thermal spring and Siloam borehole using inductively coupled plasma mass spectrometry and x-ray fluorescence spectrometry." Diss., 2018. http://hdl.handle.net/11602/1304.

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MSc (Chemistry<br>Department of Chemistry<br>In this study, three sampling sites (Tshipise thermal spring, Mphephu thermal spring and Siloam borehole) in Limpopo Province South Africa were considered for an investigation into the mineral composition of their water and soil samples. Tshipise and Mphephu thermal springs are well developed and located within tourist resorts. On the other hand, Siloam is a borehole on the grounds of a private household. The water is used for various domestic purposes such as laundry, general cleaning of the household and bathing. Water and soil samples from
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