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Dissertations / Theses on the topic 'Water resistance'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Tasker, Alison Louise. "Water resistance properties of water-based biopolymer films." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/5847/.

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This thesis addresses both the theory and simulation of diffusion of moisture in water-based biopolymer films, whose preliminary use is as adhesives on glass bottles in the labelling industry. The first part explores the kinetics of dehydration of thin films of these biopolymer materials. The second part of the thesis deals with moisture intake into both dried thin films and into the wet biopolymer gel network. Mathematical simulations based on Fick's laws of diffusion have been developed as a tool to understand the underpinning mechanisms of diffusion and of evaporation to discover which, if

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2

Bailey, Lucinda. "Microbial resistance to advanced water treatment processes." Thesis, University of Birmingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403584.

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3

Ma, Chih-Yu. "Occurrence and characterization of antibiotic-resistant Escherichia coli in wastewater and surface water." Kyoto University, 2020. http://hdl.handle.net/2433/259030.

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4

Vaughan, Ronald L. "Resistance-in-series modeling in high-shear rotary ultrafiltration." Morgantown, W. Va : [West Virginia University Libraries], 1998. http://etd.wvu.edu/templates/showETD.cfm?recnum=189.

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Thesis (M.S.)--West Virginia University, 1998.<br>Title from document title page. Document formatted into pages; contains xv, 233 p. : ill. Includes abstract. Includes bibliographical references (p. 227-232).

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5

Hall, Karen. "Surface water flow resistance due to emergent wetland vegetation." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/42242.

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The key to a successful wetland design is duplicating the hydroperiod of the desired wetland type. Dense wetland vegetation affects surface water flow rates by increasing flow resistance. Prior research represented the vegetation as individual stems; however, many wetland species grow in clumps. Therefore, the objectives of this study were to investigate the effect of clumping vegetation on flow resistance and to develop a prediction equation for use in wetland design. A 6-m by 1-m by 0.4-m recirculating flume was planted with mature common rush, Juncus effusus, a common emergent wetland plant

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6

Wynn, Paul Laurence. "Water use efficiency and drought resistance in ornamental plants." Thesis, The University of Sydney, 2009. https://hdl.handle.net/2123/28220.

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Increasing concerns over the distribution, abundance and security of fresh water resources in Australia have led to a nationwide re—evaluation of their management and sustainability. The potential for reductions in municipal water use through demand management are substantial, including the potential for savings through the improved design and management of the irrigated urban landscape. It is proposed that the selection of more appropriate plant species is essential to maximising outdoor water savings. Current plant selection practices are, however, typically based upon highly question

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7

Forster, Simon C. "The decay resistance of chemically modified softwood." Thesis, Bangor University, 1999. https://research.bangor.ac.uk/portal/en/theses/the-decay-resistance-of-chemically-modified-softwood(5a305e9c-1204-4f8e-8074-24cef740ac08).html.

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The purpose of this study was to assess the decay resistance of wood modified with a variety of chemicals and to attempt to further understand the mechanism by which chemical modification protects wood from decay. Corsican pine (Pinus nigra) sapwood was modified with three cyclic anhydrides; succinic anhydride, alkenyl succinic anhydride (a derivative of succinic anhydride with a 16-18 carbon alkenyl chain) and phthalic anhydride, and with two more widely studied modifying chemicals; acetic anhydride and butyl isocyanate. All reactions were carried out using pyridine as solvent and catalyst. M

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8

Jeunesse, Florian. "Characterisation of water resistance with resin impregnated paper honeycomb cores." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-41885.

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Axxor is one the main leader in paper honeycomb production by supplying automotive, furniture, and door manufacturers. Paper honeycomb material holds the lead over any existing cores in performance, price and density ratio. The main drawback of PHC products is its lack of water/fire resistance which reduces significantly its scope of applications. Consequently, the Axxor company intends to perform a new type of product which could withstand a water exposition: impregnated paper honeycomb. By coating the paper honeycomb cellulose fibers, the mechanical properties are significantly improved with

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9

Lima, Taysla Roberta Almeida de. "Lignin is a good predictor of resistance species to water stress?" Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14883.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>Tropical plant species resist seasonal drought by avoidance or tolerance, keeping or losing leaves, respectively. Since drought resistance is influenced by wood attributes and lignin is a major component of wood, we investigated whether lignin is related to foliar retention time (LR). We selected 22 species, determined the stem lignin content by thioglycolic acid and quantified guaiacyl (G) and syringyl (S) monomers by thioacidolysis and GC-MS analysis. Among these species, we selected 15 species to measure vulnerability

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10

Vaziri, Mojgan. "Water Resistance of Scots Pine Joints Produced by Linear Friction Welding." Thesis, Nancy 1, 2011. http://www.theses.fr/2011NAN10059/document.

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Le soudage du bois est une technique d'assemblage sans adhésif de deux pièces de bois, leur soudure étant produite par friction mécanique sous pression des deux pièces. Ce procédé, applicable à des pièces de bois plates, d'essences identiques ou différentes, se prête à la fabrication de meubles et à la menuiserie. Cependant, le joint obtenu n'est pas de classe "extérieur", ce qui le réserve à un usage "intérieur". En effet, un joint destiné à une utilisation extérieure ou en milieu à humidité variable doit présenter une résistance élevée à l'eau. L'objectif principal de cette thèse est d'étudi

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11

Sethi, J. (Jatin). "Cellulose nanopapers with improved preparation time, mechanical properties, and water resistance." Doctoral thesis, Oulun yliopisto, 2018. http://urn.fi/urn:isbn:9789526221540.

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Abstracts Cellulose nanopapers are the strongest polymeric material known to us, and in the near future, they are likely to be a backbone of numerous functional materials. Cellulose nanopapers have gained much attention due to qualities such as their environmentally friendly nature, renewable raw material source and biodegradability. Additionally, they offer an industrially adaptable, water-based processing route, which is similar to current paper production. Functionally, besides being tougher than any known plastic, cellulose nanopapers remain foldable like a paper. Despite their fascinating

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12

Martinsdotter, Linnea. "Fiber based biocomposite material with water and grease barrier properties." Thesis, KTH, Fiber- och polymerteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298184.

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Syftet med denna studie var att utveckla en biokomposit med både fett-och vattenbarriär. Material med dessa egenskaper innehåller idag ofta PFAS-molekyler (per- och polyfluorerade alkylsubstanser). Det är av stor betydelse att byta ut dessa mot ett biobaserat alternativ då de är giftiga och ackumuleras i naturen. Biokompositen utvecklades genom att kombinera icke-trä pappersmassa (75%) och trä pappersmassa (25%) som matris. Därefter tillsattes olika biobaserade additiv i våtände för att påverka materialets egenskaper. Proverna testades på deras dragstyrka, vattenavvisning och fettavvisning. De

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13

EMEL, EMETALLAH ZERROUK. "LAND GRABBING AND WATER GRABBING INDUCED DISPLACEMENT AND RESISTANCE IN REFORMING MYANMAR." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199477.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(地球環境学)<br>甲第19153号<br>地環博第128号<br>新制||地環||26(附属図書館)<br>32104<br>京都大学大学院地球環境学舎地球環境学専攻<br>(主査)教授舟川晋也, 准教授真常仁志, 准教授橋本禅, 准教授ｼﾞｪｰﾝｼﾝｶﾞｰ<br>学位規則第4条第1項該当

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14

Jurgens, Dawn Julie. "Pseudomonas aeruginosa biofilms in drinking water and the evolution of antibiotic resistance." Thesis, University of Ottawa (Canada), 2008. http://hdl.handle.net/10393/27594.

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In nature, bacteria grow attached to surfaces in communities called biofilms. Biofilm bacteria are phenotypically distinct from free-floating planktonic bacteria, and one of the phenotypic characteristics of biofilms is that they are highly resistant to antimicrobials. Because of this, biofilms growing inside water distribution systems are not killed by the residual water disinfectant. Bacteria that live inside drinking water distribution system biofilms are under stress due to the constant exposure to the residual disinfectant and the nutritional stress of living in an oligotrophic environmen

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15

Akinleye, I. O. "The effect of water activity on the heat resistance of Salmonella typhimurium." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308566.

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16

Domenghini, Jacob Cody. "Water use and drought resistance of turfgrass and ornamental landscape plant species." Diss., Kansas State University, 2012. http://hdl.handle.net/2097/13517.

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Doctor of Philosophy<br>Department of Horticulture, Forestry, and Recreation Resources<br>Dale Bremer<br>Greg Davis<br>In 2005, turfgrass was estimated to cover approximately 20 million ha of urbanized land. That area is increasing with rapid urbanization, stressing the importance of water conservation in the lawn and landscape industry. Turfgrasses have been identified for replacement by presumably more water-efficient ornamental plant species to conserve water. However, research comparing drought resistance and evapotranspiration (ET) of turfgrasses with ornamental landscape

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17

Khan, Sadia. "The role of water distribution systems in the enrichment of antimicrobial resistance." Thesis, University of Strathclyde, 2016. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27545.

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The drinking-water environment is prone to chemical and biological pollution, and it remains a challenge to achieve contamination-free water for the consumer. Biological contaminants (microorganisms and their genetic traits) can become more difficult to treat, as compared to chemical, as they can escape treatment processes (including disinfection) and replicate. Their presence in the drinking water environment has become considered to be a hotspot for the dissemination of antimicrobial resistance genes (ARG). Moreover, the treatment process may create conditions that may exacerbate the develop

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18

Young, Suzanne M. "The Ecology of Antibiotic Resistance: Sources and Persistence of Vancomycin-Resistant Enterococci and Antibiotic Resistant Genes in Aquatic Environments." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7112.

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The growing crisis of antibiotic resistance is a major threat to ecosystems and human health. Infections caused by known and emerging antibiotic resistant pathogens are on the rise globally, with approximately 700,000 deaths per year caused by antibiotic resistant bacteria (1). In the United States, infections from antibiotic resistant bacteria cause more than 2 million illnesses and 23,000 deaths (2). Antibiotic resistant bacteria and antibiotic resistance genes are released into aquatic ecosystems through hospital waste, residential sewer lines and animal agricultural was

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19

Mukherjee, Shriparna. "Studies on antibiotic resistance patterns of bacterial population of Torsa river water and molecular characterization VIS-A-VIS assessing the potential for genetic exchange of resistance plasmids." Thesis, University of North Bengal, 2005. http://hdl.handle.net/123456789/919.

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20

Nalesso, Mauro. "Integrated Surface-Ground Water Modeling in Wetlands With Improved Methods to Simulate Vegetative Resistance to Flow." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/122.

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This dissertation focused on developing an integrated surface – subsurface hydrologic simulation numerical model by programming and testing the coupling of the USGS MODFLOW-2005 Groundwater Flow Process (GWF) package (USGS, 2005) with the 2D surface water routing model: FLO-2D (O’Brien et al., 1993). The coupling included the necessary procedures to numerically integrate and verify both models as a single computational software system that will heretofore be referred to as WHIMFLO-2D (Wetlands Hydrology Integrated Model). An improved physical formulation of flow resistance through vegetation i

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21

Baptista, Diogo. "Assessment of Water Penetration Resistance of Coatings on Wood by Droplet Dynamics Analysis." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/BaptistaD2005.pdf.

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22

Li, Xin. "Mechanical properties and water resistance of cellulosic fiberboards with soybean protein based adhesives." Thesis, Kansas State University, 2009. http://hdl.handle.net/2097/13539.

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Master of Science<br>Department of Grain Science and Industry<br>Xuzhi Susan Sun<br>Large amount of fiberboard are used for packaging applications every year, which generate a large amount of solid wastes causing environmental pollution if these packaging materials are not recycled. Also, a large amount of wood are needed for making fiberboard, which is limited resource in the earth. Reducing the weight of fiberboard and recycling the fiberboard materials are two methods to save quantities of wood fiber in fiberboard manufacture, which benefit the environment and economy. Besides, most ad

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23

Romanis, Marco. "Evaluation of agricultural effluents and irrigation water as sources of antimicrobial resistant Escherichia coli." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/95474.

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Thesis (MSc Food Sc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Food-borne disease outbreaks caused by Escherichia coli have been linked to the use of faecally-polluted irrigation waters. Thus the overall aim of this research was to evaluate irrigation water and agricultural effluents as sources of antibiotic resistant E. coli in the Western Cape. The aim of the first study was to enumerate and characterise E. coli present in irrigation water and in potential contamination sources. Maximum total coliform and E. coli counts for irrigation sites was log 7.862 and log 5.364 MPN.100 mL-1

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24

Bao, Yan, Yuanxia Zhang, and Jianzhong Ma. "Mesoporous Hollow SiO2 Spheres Stabilized Pickering Emulsion to Improve Water Vapor Permeability and Water Resistance for Leather Finishing Agent - 199." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34312.

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Content: In order to solve the negative impact of coating on water vapor permeability of leather and overcome the poor water resistance of polyacrylate leather finishing agent, it was proposed that the mesoporous SiO2 spheres with hollow structure instead of traditional surfactant were introduced into polyacrylate by Pickering emulsion polymerization. It was expected to increase the water vapor permeability of polyacrylate film by increasing the path and shortening the route of water vapor molecules through the film, and improve the water resistance of film by avoiding the use of surfactant. H

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25

Smith, Lisa Marie. "Antibiotic resistance and coliform bacteria in the Ohio River; 2002 to 2004." Huntington, WV : [Marshall University Libraries], 2006. http://www.marshall.edu/etd/descript.asp?ref=679.

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Theses (M.S.)--Marshall University, 2006.<br>Title from document title page. Includes abstract. Document formatted into pages: contains vii, 73 p. including illustrations and maps. Bibliography: p. 25-28.

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26

Avila, Luis Antonio de. "Imazethapyr: red rice control and resistance, and environmental fate." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2511.

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Imazethapyr was recently approved for use in rice, but limited information is available regarding its efficacy, environmental fate or potential red rice resistance. Therefore, experiments were conducted to 1) determine the effect of flooding time, and stage of imazethapyr application in red rice control, 2) assess the acetolactate synthase resistance to imazethapyr on red rice ecotypes, 3) determine the relative photolysis of imazethapyr, and 4) determine the effect of soil and moisture on imazethapyr adsorption and availability. When imazethapyr was applied in sequential application of PRE fo

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27

Kameli, Abdelkarim. "Metabolic responses of dorium wheat to water stress and their role in drought resistance." Thesis, University of Sheffield, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388776.

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28

Knapp, van Bogaert Donna. "Earth, air, fire and water : moral responsibility and the problem of global drug resistance." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/49936.

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Thesis (PhD)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: In this dissertation, I grapple with the problem of global drug resistance and moral responsibility which, as far as I am aware, has so far not been presented as a topic of ethical inquiry. It represents a conundrum involving three major factors: microbial adaptation and change, human social factors and environmental changes. Drug resistance is a phenomenon in which certain microorganisms, when exposed to antimicrobial agents, may acquire the beneficial trait of drug resistance which ensures a better potential for their s

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29

Ahrens, Victoria Margaret. "Bodies of water : photographic encounters of resistance, ruin and memory on the River Paraná." Thesis, Birkbeck (University of London), 2017. http://bbktheses.da.ulcc.ac.uk/245/.

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This research is centred on the notion of landscape as a construct of marginal and multiple dialogues. It is a project that originates from a rediscovered family album of photographs of the Latin American landscape at the turn of the 20th century. In particular those that centre on the Paraná River in Argentina, a place where myth, recent history of the Desaparecidos (those ‘disappeared’ by the military junta 1976-1983) and memory collide. These early analogue photographs of the river have sparked a series of creative interventions that explore the interstices between photography and printmaki

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30

Bao, Yan, Lu Gao, and Jianzhong Ma. "Hygienic Property and Water Resistance of Waterborne Polyacrylate/Flower-like ZnO Composite Coatings - 197." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34258.

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Content: Polyacrylate as film-forming materials has been widely used in leather finishing, but its compactness significantly obstructs the hygienic property of upper leather. Therefore, considerable efforts have been made to endow polyacrylate with required properties. In this study, we demonstrated a facile and rapid sonochemical process to synthesis the flower-like ZnO nanostructures. The related morphology and structure of product were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Meanwhile, flower-like ZnO were intr

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31

Bonita, John Anthony. "The Effects of Vibration on the Penetration Resistance and Pore Water Pressure in Sands." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/29417.

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The current approach for using cone penetration test data to estimate soil behavior during seismic loading involves the comparison of the seismic stresses imparted into a soil mass during an earthquake to the penetration resistance measured during an in-situ test. The approach involves an indirect empirical correlation of soil density and other soil related parameters to the behavior of the soil during the loading and does not involve a direct measurement of the dynamic behavior of the soil in-situ. The objective of this research was to develop an approach for evaluating the in-situ behavior

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32

Williams, Cynthia A. H. "Toxicity Resistance in Mummichog (Fundulus heteroclitus) from a Chemically Contaminated Environment." W&M ScholarWorks, 1994. https://scholarworks.wm.edu/etd/1539617674.

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33

Gillman, Anna. "Tamiflu in the Water : Resistance Dynamics of Influenza A Virus in Mallards Exposed to Oseltamivir." Doctoral thesis, Uppsala universitet, Infektionssjukdomar, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-277610.

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The natural reservoir of influenza A virus (IAV) is wild waterfowl, and all human IAVs have their genetic origins from avian viruses. Neuraminidase inhibitors (NAIs) are currently the best drugs for treatment of human influenza; therefore, the orally available NAI oseltamivir (Tamiflu®) has been stockpiled worldwide as part of pandemic preparedness planning. Re-sistance to NAIs is related to worse clinical outcomes and if a new pandemic influenza virus would be oseltamivir-resistant its public health impact would be substantially worsened. The active metabolite oseltamivir carboxylate (OC) is

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34

Horgan, Barry G. "The effect of post-resistance exercise water immersion on muscular adaptation and performance in athletes." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2022. https://ro.ecu.edu.au/theses/2526.

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High training load and reduced well-being increase the risk of injury, illness and performance decrements. Post-exercise recovery strategies (e.g., water immersion) are used in Olympic and teamsport training settings to induce recovery and enhance subsequent performance. Recent suggestions that cold water immersion negatively affects short- (e.g., protein synthesis, hypertrophy signalling pathways) and long-term (e.g., muscular hypertrophy and strength) responses to resistance exercise are concerning. In this thesis, post-exercise cold (CWI), contrast water therapy (alternating hot and cold) (

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35

Nejmeh, Kassem. "Enhancing adhesion and Water Resistance in Clayey adhesives Mixtures : Strategies for Vertical and Horizontal Applications." Electronic Thesis or Diss., Université Gustave Eiffel, 2024. http://www.theses.fr/2024UEFL2012.

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Le matériau argileux est depuis longtemps privilégié dans la construction pour ses caractéristiques respectueuses de l'environnement. Les fines particules d'argile jouent un rôle crucial dans l'amélioration de la cohésion de ces matériaux. Cette recherche se concentre sur l'exploration de mélanges à base d'argile en tant que substituts potentiels aux adhésifs traditionnels pour carreaux utilisés sur des dalles de béton. L'objectif est de développer un matériau présentant une forte résistance à l'adhérence et maintenant son intégrité même lorsqu'il est immergé dans l'eau. Étant donné la nature

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Arzuaga, Xabier. "Mechanisms of resistance to halogenated and nonhalogenated ahr ligands in chronically contaminated killifish populations." Lexington, Ky. : [University of Kentucky Libraries], 2004. http://lib.uky.edu/ETD/ukytoxi2004d00212/etd.pdf.

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Thesis (Ph. D.)--University of Kentucky, 2004.<br>Title from document title page (viewed Jan. 7, 2005). Document formatted into pages; contains ix, 141p. : ill. Includes abstract and vita. Includes bibliographical references (p. 128-139).

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Nicholas, Hillary Dianne. "Estimating Surface Water Presence and Infiltration for Intermittent Streams in the Semi-arid Southwest." Thesis, The University of Arizona, 2012. http://hdl.handle.net/10150/238891.

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Ephemeral streams with spatially and temporally variable flow are important ecological settings in semi-arid desert environments that until now have been poorly characterized. Our quantitative analysis explores how intermittent stream hydrology varies across geomorphic (mountain streams to desert washes) and climatic gradients (150-400 mm precipitation) in Southern Arizona. Stream channels were instrumented for the first time with a co-deployment of vertical profiles of subsurface temperature sensors, and electrical resistance (ER) sensors on the bed surface. HYDRUS 1-D was used to simulate ve

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Rocha, Mayara Melo. "From the waters that silence to the waters that speak: oppression and resistance on the course of the representations of water in Chapada do Apodi." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15162.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>In this study we analyzed the social representations of water in TomÃ, a community in Chapada do Apodi (Northeastern Brazil), and their relation to the socioenvironmental conflicts resulting from the establishment of the Jaguaribe-Apodi irrigation district. Centered on the community in TomÃ, we evaluated changes in the use of and access to water in order to identify the relation between, on one side, the processes of private appropriation of water resources and contamination by agrochemicals associated with the adoption of agro-exp

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Batlang, Utlwang. "Identification of Drought-Responsive Genes and Validation for Drought Resistance in Rice." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/26020.

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Drought stress was studied in rice (Oryza sativa) and maize (Zea mays) to identify drought-responsive genes and associated biological processes. One experiment with rice examined drought responses in vegetative and reproductive tissues and identified drought-responsive genes in each tissue type. The results showed that brief periods of acute drought stress at or near anthesis reduced photosynthetic efficiency and ultimately lowered grain yield. Yield was reduced as a result both of fewer spikelets developed and of lower spikelet fertility. Affymetrix arrays were used to analyze global gene exp

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40

Barnes, Frank. "Estimating Crop Water Requirements in Arizona and New Mexico." Thesis, The University of Arizona, 2011. http://hdl.handle.net/10150/203501.

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Relevant methods for estimating reference crop evaporation and crop evaporation for selected, pertinent crops growing in the semiarid environments of Arizona and New Mexico are investigated. Daily evaporation estimates over the period 2000-2010 are calculated using standard meteorological data from 35 weather stations. Compared to the FAO-56 Penman-Monteith reference evapotranspiration estimate, the Hargreaves and Priestley-Taylor equations overestimate by 5-15% while the temperature-based Blaney-Criddle method currently used in New Mexico underestimates by 8-13%, on average, the discrepancy

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Chung, Shin Fun. "Characterisation of soft soils for deep water developments." University of Western Australia. School of Civil and Resource Engineering, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0079.

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[Truncated abstract] This research has studied the penetration and extraction resistance profiles of different types of penetrometers in soft clay. The penetrometers of interest include the cone, T–bar, ball and plate. Effects of the surface roughness and aspect ratio of the T–bar penetrometer on its resistance have also been investigated. Undrained shear strength, Su, profiles derived from the penetration tests are compared with the shear strengths measured from field vane shear tests and laboratory (triaxial and simple shear) tests. Both in situ and centrifuge model penetration tests were u

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Cengiz, Okan. "Effects Of Pozzolan Incorporation And Curing Conditions On Strength And Water Resistance Of Natural Gypsum Pastes." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610922/index.pdf.

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ABSTRACT EFFECTS OF POZZOLAN INCORPORATION AND CURING CONDITIONS ON STRENGTH AND WATER RESISTANCE OF NATURAL GYPSUM PASTES Cengiz, Okan Ph.D., Department of Civil Engineering Supervisor : Prof. Dr. Turhan Y. Erdogan September 2009, 189 pages There are large reserves of gypsum rock (CaSO4&middot<br>2H2O) in Turkey and in various regions of the world. Heating gypsum rock to 140 - 190 0C causes it to lose three-fourths of its water molecules and turn into gypsum, called plaster of Paris<br>heat application over 190 0C results in loss of all the water molecules and this form of the material is cal

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Gatzanis, Gustav Ernest. "Abrasion-corrosion and stress corrosion resistance of a 9Cr-2Ni-0.7Mo steel in simulated mine water." Master's thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/21957.

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Bibliography: pages 101-109.<br>The locally (RSA) developed 9Cr-2Ni-0.7Mo steel designated 927 formed the subject of this study. Its abrasion-corrosion and stress corrosion performances were assessed in laboratory tests simulating the underground environment in South African gold mines. The results indicate that the alloy performs favourably in abrasive-corrosive applications, outperforming several other higher chromium containing steels which have been designed for the purpose. The alloy is also highly resistant to sec at free corrosion potential in simulated mine water. The good abrasion-cor

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Giddey, Kirsten Francis. "Investigating the efficacy of hydrogen peroxide agaisnt isolated environmental Escherichia coli strains." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96613.

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Thesis (MSc Food Sc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Surface water used for irrigation is often highly contaminated on a microbial level. Using contaminated surface water for the irrigation of fresh produce can lead to foodborne disease outbreaks and Escherichia coli has been a major cause of foodborne outbreaks associated with fresh produce over the past few years. There are many possible on-farm treatment options available to decrease the high microbial loads present in surface water, one of these is H2O2 and various factors can influence its use. The aim of this study w

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Wikberg, Jenny. "Water relations in Salix with focus on drought responses /." Umeå : Department of Forest Genetics and Plant physiology, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200648.pdf.

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Paul, Jean-Yves. "The manipulation of apoptosis-related genes to generate resistance to Fusarium wilt and water stress in banana." Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/29263/1/Jean-Yves_Paul_Citation.pdf.

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Bananas are susceptible to a diverse range of biotic and abiotic stresses, many of which cause serious production constraints worldwide. One of the most destructive banana diseases is Fusarium wilt caused by the soil-borne fungus, Fusarium oxysporum f. sp. cubense (Foc). No effective control strategy currently exists for this disease which threatens global banana production. Although disease resistance exists in some wild bananas, attempts to introduce resistance into commercially acceptable bananas by conventional breeding have been hampered by low fertility, long generation times and associa

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Paul, Jean-Yves. "The manipulation of apoptosis-related genes to generate resistance to Fusarium wilt and water stress in banana." Queensland University of Technology, 2009. http://eprints.qut.edu.au/29263/.

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Bananas are susceptible to a diverse range of biotic and abiotic stresses, many of which cause serious production constraints worldwide. One of the most destructive banana diseases is Fusarium wilt caused by the soil-borne fungus, Fusarium oxysporum f. sp. cubense (Foc). No effective control strategy currently exists for this disease which threatens global banana production. Although disease resistance exists in some wild bananas, attempts to introduce resistance into commercially acceptable bananas by conventional breeding have been hampered by low fertility, long generation times and associa

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Sternberg, Petra. "Physiological and Morphological Basis for Differences in Growth, Water Use and Drought Resistance Among Cercis L. Taxa." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1325209664.

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Martínez, Vilalta Jordi. "Constraints on water transport posed by xylem embolism: implications for drought and frost resistance in woody plants." Doctoral thesis, Universitat Autònoma de Barcelona, 2001. http://hdl.handle.net/10803/3643.

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Introducció<br/>L'aigua és un recurs i un factor limitant per la vida de les plantes. El transport d'aigua des de les arrels fins a les fulles té lloc fonamentalment a través del xilema. La capacitat d'aquest teixit per transportar aigua (i.e., la seva conductivitat hidràulica) no és constant sinó que depèn de les condicions en què es produeix el transport. En particular, quan els potencials hídrics es fan molt negatius (sequera) o les temperatures molt baixes (glaçada) augmenta el risc que la columna d'aigua a l'interior del xilema es trenqui, amb la consegüent pèrdua de conductivitat. La vul

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Wright, Claire Louise, Anna M. Snelling, L. Newton, and Kevin G. Kerr. "Water-associated nosocomial infections." 2008. http://hdl.handle.net/10454/4882.

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yes<br>It is estimated that 5-10% of hospitalised patients in developed countries contract hospital acquired infections (HAI). Increasing levels of antimicrobial resistance manifested by many HAI-causing pathogens such as Acinetobacter spp in the intensive care unit (ICU) setting present a significant challenge to those managing these infections. Consequently, much attention has been focused on the prevention of HAIs. Particular emphasis has been placed on interventions intended to interrupt patient-to-patient transmission of pathogens, such as enhanced hand hygiene and identification

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