Relevant bibliographies by topics / Contaminant detection / Dissertations / Theses
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Dissertations / Theses on the topic 'Contaminant detection'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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1

Hoppe, Edward J. (Edward Jerzy). "Application of electric polarization to contaminant detection in soils." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28461.

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A new field measurement technique for the determination of the lateral extent of subsurface contamination is proposed. It is applicable to tracing contaminant migration from underground storage tanks and waste disposal sites. The proposed approach involves adaptation of the time-domain reflectometry (TDR) concept and relies on the interraction of matter with an electric field. Analysis of the TDR data collected from soil-contaminant mixtures indicates the feasibility of a subsurface contaminant detection.<br>The proposed contaminant detection technique relies on matching an unknown TDR wavefor
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2

Kiepert, Joshua. "A wireless sensor data fusion framework for contaminant detection." [Boise, Idaho] : Boise State University, 2009. http://scholarworks.boisestate.edu/td/61/.

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3

Jain, Ishan. "Paper-Based Sensors for Contaminant Detection Using Surface Enhanced Raman Spectroscopy." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/53946.

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Surface enhanced Raman spectroscopy (SERS) is highly promising analytical technique for trace detection of analytes. It is particularly well suited for environmental analyses due to its high sensitivity, specificity, ease of operation and rapidity. The detection and characterization of environmental contaminants, using SERS is highly related to the uniformity, activity and reproducibility of the SERS substrate. In this thesis, SERS substrates were produced by gold nanoparticle formation on wax patterned chromatography paper. In situ reduction of hydrogen tetrachloroaurate (gold precursor) b
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4

Yang, Xueyao. "Real-time Probabilistic Contaminant Source Identification and Model-Based Event Detection Algorithms." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1385114685.

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5

Frost, Mark Stuart. "Multifunctional nanomaterials designed for the detection and removal of priority contaminant substances from waste and drinking water." Thesis, Manchester Metropolitan University, 2015. http://e-space.mmu.ac.uk/617333/.

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Heavy metal pollution in waste water and drinking water is a growing concern, with the European Commission producing the Water Framework Directive (WFD) and Drinking Water Directive (DWD) to set ‘acceptable’ levels for priority chemicals in water systems. Taking into account the innovative work being carried out in the area of nanosensors, this research has produced several methods for the quantitative analysis of some aqueous metal ions. This study explored the use of citrate functionalised Au and Ag NPs and CuS nanoclusters Citrate functionalised Au and Ag NPs were synthesised to develop for
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6

DUMAIN, PHILIPPE. "La cytometrie en flux : methode d'analyse microbiologique rapide. mise au point et application a la detection des levures contaminant les produits alimentaires." Paris 7, 1993. http://www.theses.fr/1993PA077249.

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Les numerations des colonies en boites de petri presentent de nombreux desavantages, en particulier le temps s'ecoulant entre l'ensemencement et l'obtention du resultat. Les methodes d'analyse microbiologique rapide sont devenues des parametres incontournables pour le controle microbiologique des produits alimentaires. La cytometrie en flux est une technique permettant l'analyse et le tri de particules en suspension liquide a des rythmes tres eleves. Ses potentialites pour la detection, la numeration et l'identification des microorganismes contaminants sont evaluees dans ce memoire. Apres un r
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7

Bergua, Canudo José Francisco. "Nanobiosensors for contaminants detection in water." Doctoral thesis, TDX (Tesis Doctorals en Xarxa), 2020. http://hdl.handle.net/10803/670394.

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Aquesta tesi té com a objectiu desenvolupar biosensors per al monitoratge ambiental. Primer, s'ha desenvolupat un biosensor colorimètric basat en lateral flow strips (LFS) per a la detecció i quantificació d'Escherichia coli com a indicador fecal universal. En aquest cas, nanopartícules d'or (AuNP) s'utilitzen com a transductors òptics i anticossos policlonals com a elements de bioreconeixement per capturar, marcar i indicar la presència del bacteri. Paral·lelament, s'ha desenvolupat un sistema de filtració per millorar la sensibilitat dels LFS. L'optimització del flux de la mostra a través de
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8

Carr, Kristin (Kristin Malia). "Detection of contaminants using a MEMS FAIMS sensor." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/36761.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.<br>Includes bibliographical references (p. 71-74).<br>Detecting the presence of contaminants in water is a critical mission, but thorough testing often requires extensive time at a remote facility. A MEMS implementation of a FAIMS (High-Field Asymmetric-Waveform Ion Mobility Spectrometry) sensor has recently been developed, and is capable of promptly analyzing water on-site. In this thesis, we apply two well-established statistical target detector algorithms to the detection of
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9

Rapakgadi, Jim. "Detection of contaminants in wool bales using nuclear techniques." Thesis, Nelson Mandela Metropolitan University, 2009. http://hdl.handle.net/10948/993.

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To improve the quality and the marketability of wool and mohair, it is important to encourage, ensure and preferable certify that the baled fibre is free of contaminants. Anything other than the fibre that is within the bale can be classified as contaminants; this may be in the form of metal and wooden objects, plastic materials, paints, and vegetable matter such as grass and seed. The internationally accepted method for detecting and classifying these contaminants are highly labour intensive and costly. The ultimate goal of the present research is to develop a non-invasive and nondestructive
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10

Nyren-Erickson, Erin Kathryn. "In Vitro Detection of Disease Biomarkers and Drug Contaminants." Diss., North Dakota State University, 2013. https://hdl.handle.net/10365/27018.

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In recent years the rising cost and increased regulation within the U.S. healthcare system have caused medical laboratory tests to become more costly and more frequently required. As a result, insurance premiums are rising, and small independent laboratories are threatened with closure as their already narrow margins dwindle. Concurrently, there have been several incidents of contaminants and impurities in pharmaceutical drugs causing hundreds of deaths and thousands of illnesses. These challenges substantiate the need for simple and cost-effective screening tests for the presence of disease b
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11

Menevseoglu, Ahmed. "METABOLOMICS APPROACH FOR AUTHENTICATION OF PISCO AND DETECTION OF CONTAMINANTS." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574841283680933.

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12

Hansson, Freja. "Detection of Contaminants in Water Using Surface Enhanced Raman Spectroscopy." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85943.

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Due to deteriorating water quality and the world’s increasing demand for clean water, the need for cheap, easy and portable techniques to characterize and quantify pollutants in waters is urgent. Hence, surface-enhanced Raman spectroscopy (SERS) have gained considerable attention in this field. Atrazine and bentazon are two of the most occurring pesticides causing pollution in Sweden, and where therefore examined in this study, along with 4-mercaptopyridine (mpy) as a reference molecule. In this project, silver and gold nanoparticles where synthesised and used as SERS substrates for detection
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13

Hoehl, Melanie Margarete. "Versatile, automated sample preparation and detection of contaminants and biological materials." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/85218.

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Thesis: Ph. D., Harvard-MIT Program in Health Sciences and Technology, 2013.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages xviii-xxxvi).<br>Contamination of food, water, medicine and ingestible household products is a public health hazard that episodically causes outbreaks worldwide. Existing laboratory methods are often expensive, require a laboratory environment and/or trained staff to
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14

Shimizu, Kristen N. M. "Water quality monitoring of biological contaminants -- rapid, on-site detection technologies." Scholarly Commons, 2012. https://scholarlycommons.pacific.edu/uop_etds/824.

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Access to a safe drinking water supply is a critical issue in a number of places across the globe. Conventional water quality monitoring technologies are slow, often taking at least two days to produce results. In recent years, there has been extensive research into emerging technologies that provide real-time results; however, there is no technology which detects all classes of biological contaminants. Biological contaminants are 5 particularly difficult to detect and quantify due to low concentrations typically present. It is not feasible to identify all biological contaminants present in a
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15

Bueno, Hernandez Diana. "Optical and electrochemical sensing methods for the detection of food contaminants." Thesis, Perpignan, 2016. http://www.theses.fr/2016PERP0044/document.

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Un appareil de mesure de la fluorescence, à faible coût et portable a été développé pour quantifier les concentrations d’Ochratoxine A (OTA) dans des échantillons réels. Le système est basé sur l’excitation par une UV-LED à 365 nm et un photo détecteur contrôlé par une interface dans LabVIEW. Aussi, une image capteur, CMOS, contrôlée par une interface conçue dans MATLAB. L’OTA est une molécule naturellement fluorescente. Après excitation par une UV-, l’image de la fluorescence émise est captée par une caméra et traitée en vue de la mesure de la concentration de l’OTA. Le système d’analyse a ét
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16

Wujcik, Evan K. "Discovery of Nanostructured Material Properties for Advanced Sensing Platforms." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1374414126.

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17

Canhoto, Olinda. "Applications of volatile fingerprint sensor arrays for rapid detection of environmental contaminants." Thesis, Cranfield University, 2005. http://hdl.handle.net/1826/919.

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The electronic nose (e-nose) technology has rapidly evolved in the past decade with a range of applications in the food industry, medical diagnosis, and recently environmental monitoring. This is the first time that this technology has been examined in detail for a range of specific environmental applications including: detection of low concentrations of bacterial, fungal and heavy metal contaminants in potable water; analyses of changes in the microbial activity of soil samples amended with heavy metals; and the detection of fungal contaminants in paper samples from library material. In some
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18

Magliulo, Maria <1976&gt. "Innovative immunoassay formats for the detection of food contaminants and pathogenic bacteria." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/592/1/Magliulo-tesi.pdf.

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19

Magliulo, Maria <1976&gt. "Innovative immunoassay formats for the detection of food contaminants and pathogenic bacteria." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/592/.

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20

Koutsoumpeli, Eleni. "Exploring the potential of antibody mimetics for detecting environmental contaminants." Thesis, University of York, 2017. http://etheses.whiterose.ac.uk/18473/.

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Over the past 15-20 years, there has been growing interest and concern from the scientific and regulatory communities over the potential risks of emerging environmental contaminants (ECs). State-of-the-art techniques used for monitoring ECs do not provide the high spatial and temporal resolution measurements required to better understand and mitigate the risks. Immunoassays, which use antibodies to detect a target compound with high affinity, specificity and selectivity, partly address these limitations. However, the use of antibodies for the detection of small-sized, non-immunogenic environme
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21

Zara, Lorena. "Développement de biocapteurs à base d'aptamères pour la détection de petites molécules Engineering Light-Up Aptamers for the Detection of RNA Hairpins through Kissing Interaction Anti-Pesticide DNA Aptamers Fail to Recognize their Targets with Asserted Micromolar Dissociation Constants A malachite green light-up aptasensor 1 for the detection of 2 theophylline." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALV033.

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De nos jours, il est urgent de créer des biocapteurs peu coûteux, efficaces et simples à utiliser, capables de quantifier et de détecter rapidement des petites molécules (masse molaire &lt;1000 g / mol) telles que les pesticides, les toxines, les antibiotiques ou les médicaments, pour protéger, à la fois la santé humaine et l’environnement. Les aptamères sont des oligonucléotides en série ARN ou ADN présentant une affinité et une spécificité élevées pour leur cible. Ils peuvent être utilisés comme éléments de reconnaissance moléculaire dans des biocapteurs, appelés aptacapteurs. Ces derniers o
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22

Flick, Hunter James. "Detection of Environmental Contaminants in Water Utilizing Raman Scanning for E. coli Phenotype Changes." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/89651.

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Raman spectroscopy and its counterpart surface-enhanced Raman scattering (SERS) have proven to be effective methods for detecting miniscule changes in the phenotypes of E. coli and other single-celled organisms to aid in the detection of new strains for industrial use and discovery of new antibiotics. The purpose of this study is to develop a method to quickly and accurately detect contaminants in water samples through phenotype changes in E. coli measured through SERS. Contaminated Luria-Bertani (LB) media was inoculated with LB with an OD600 of 1, grown for two hours, and then dried on a fla
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23

Derbyshire, Nicola. "Exploring the application of nucleic acid aptamers for detection of food contaminants and viruses." Thesis, University of Leeds, 2012. http://etheses.whiterose.ac.uk/4136/.

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Use of antibiotic, anti-fungal and anti-parasitic agents is required to protect from infections that can rapidly spread making entire crops unsuitable for human consumption or threaten the health of livestock. However, these agents can have toxic side effects on humans at high concentrations so their residual levels in food are regulated. Their levels are monitored through both random and routine surveillance checks that generate ~ 50 000 samples per year in the UK alone. This is not an easy task because many of these compounds are small molecules that require extensive sample extraction follo
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24

DONATI, PAOLO. "Colorimetric nanodiagnostics for Point-Of-Care applications: detection of salivary biomarkers and environmental contaminants." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1046324.

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Nanomaterials offer many unique opportunities for the development of effective and rapid point-of-care (POC) devices to be exploited in many fields, including early diagnosis, health monitoring, and pollutant detection. In particular, gold nanoparticles (AuNPs) exhibit tunable catalytic and plasmonic properties, which are key enabling tools to design and develop innovative detection schemes in several sensing applications. The aim of this PhD project was the development of AuNPs-based colorimetric POCs to detect heavy metal ion contaminations and specific biomarkers in non-invasive biological
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25

Ranawaka, Arachchige Dinusha. "Ion transfer stripping voltammetry method using conductive polymer to low concentration detection of environmental contaminants." Thesis, Arkansas State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10095768.

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<p> Detecting environmental contaminants such as Selective serotonin reuptake inhibitors (SSRIs) and Cr (VI) compounds is essential since they are highly toxic contaminants of many drinking water supplies leading to adverse health effects. Selective serotonin reuptake inhibitors are common antidepressants therapeutics and fluoxetine; Prozac<sup>&reg;</sup>, citalopram; Celexa<sup> &reg;</sup> and sertraline; Zoloft<sup>&reg;</sup> were successfully detected in this study. Ion transfer stripping voltammetry (ITSV) was applied to detect those as cations at nanomolar concentrations using an inexp
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26

Pokpas, Keagan William. "Microfluidic graphenised-paper electroanalytical devices (μGPED) for adsorptive cathodic stripping voltammetric detection of metal contaminants". University of the Western Cape, 2017. http://hdl.handle.net/11394/5506.

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Philosophiae Doctor - PhD<br>The need for clean, non-toxic drinking water supplies, free of pollutants and metal contamination is vital in impoverished areas and the developing world alike. With this in mind, the development of accurate, inexpensive, portable and simple devices for remote sensing applications is therefore pivotal for early detection and the prevention of illnesses. Over the last two decades, adsorptive stripping voltammetry (AdSV) has emerged as a superior detection method over common analytical techniques due to its low-cost instrumentation, unskilled labour and ability
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27

Newkirk, Scott Hunter. "Detection levels of drinking water contaminants using field portable ultraviolet and visible light (uv/vis) spectrophotometry /." Download the thesis in PDF, 2005. http://www.lrc.usuhs.mil/dissertations/pdf/NEWKIRK2005.pdf.

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28

White, Paul Andrew. "Detection, discharge and ecological behaviour of genotoxic organic contaminants in the St. Lawrence and Saguenay rivers." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40281.

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The goal of this thesis was to examine the sources and ecological behaviour of genotoxic organics in the St. Lawrence river system. A rapid and effective version of the SOS Chromotest was developed to accomplish the task of genotoxicity assessment. The method, validated with standard reference materials, is particularly well suited to complex environmental extracts. The endpoint investigated throughout the thesis, SOS genotoxicity, is empirically related to more familiar endpoints such as mutagenicity and carcinogenicity. Analyses of literature data confirmed correlations between SOS genotoxic
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29

CELETTI, GIORGIA. "Microfluidic for human health: a versatile tool for new progress in cancer diagnosis and contaminants detection." Doctoral thesis, Politecnico di Torino, 2016. http://hdl.handle.net/11583/2641069.

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In the last ten years, interest in manipulating droplets in microchannels has emerged from two important motivations. The first arise from the desire to produce well controlled droplets for material science applications, for example in the pharmaceutical or food industries. In this context, microfluidics allows for producing such droplets in a controlled and reproducible manner, also allowing complex combinations to be designed and explored. A second motivation originates with the advent of the -omics era, which has a much need for being able to carry out experiments at the smallest possible s
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Morton, Mary Josephine. "Development of novel methods for the detection of chemical and microbiological contaminants in the agri-food chain." Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602684.

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The first aim of this research was to evaluate recently developed biosensors for their potential to detect chemical contaminants, chloramphenicol and/or nitrofuran metabolites and, overall their potential for the food industry in their present form, or with further development. The biosensors evaluated were the dotLab® system (Axela Inc., Toronto, Canada), SPRi-Lab+™ system (Horiba Scientific, Stanmore, UK) and Octet® RED96 system (ForteBio Inc., California, USA). All three were able to detect the chosen chemical contaminants in the form of either single- or multi-analyte detection, or both, w
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Ayob, K. A. "Development of enzyme-linked immunosorbent assays (ELISAs) for the detection of some food additives, adulterants and contaminants." Thesis, University of Salford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234590.

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32

Ковальчук, Павло Романович, Pavlo Kovalchuk, Богдан Дмитрович Москаленко та Bogdan Moskalenko. "Детектування хімічних речовин – забруднювачів довкілля за допомогою хемоспецифічних детекторів на безпілотних літальних апаратах". Thesis, Національний авіаційний університет, 2021. https://er.nau.edu.ua/handle/NAU/50563.

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1. Ключко О.М. Інформаційно-комп’ютерні технології в біології та медицині. К: НАУ-друк. 2008, 252 с. 2. Klyuchko O.M., Beloshitsky P.V. Biosensor concept and data input to biomedical information systems. Medical informatics and engineering, 2020, V.51. – №3 – с.51-69. 3. Лев А. А. Моделирование ионной избирательности клеточных мембран. Л: Наука. 1976, 210 с.<br>Метою даної статті було дослідити теоретичну базу для розробки пристроїв для виявлення деяких шкідливих хімічних речовин у навколишньому середовищі, включаючи ті, що утворюються під час пожеж та інших надзвичайних ситуацій, зок
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Dias, Luiz Fernando de Souza. "Estudo da localização otimizada de equipamentos para detecção de contaminação em redes de distribuição de água." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-14092006-010853/.

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A qualidade da água de abastecimento é de vital importância à saúde da população dos núcleos urbanos do mundo todo. Por essa razão, muitas pesquisas enfocam esse tema. Além disso, os ataques terroristas recentes ocorridos nos Estados Unidos e Europa, vêm fomentando a antiga preocupação relativa a possíveis injeções de contaminantes em redes de distribuição de água para abastecimento, evidenciando a importância da efetiva vigilância de tais sistemas. O presente trabalho investiga a rede de monitoramento ótima para detecção de injeções intencionais de poluentes e/ou contaminantes em concentraçõe
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CHRZAVZEZ, EMMANUELLE. "Detection de champignons contaminants de produits a base de fruits : etude du polymorphisme et determination de sondes moleculaires." Paris 11, 1995. http://www.theses.fr/1995PA112375.

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Neosartorya fischeri et byssochlamys nivea sont deux champignons filamenteux thermoresistants. Zygosaccharomyces bailii est une levure capable de se developper sur des milieux tres varies, meme en presence de quantites importantes de conservateurs. De par leurs caracteristiques, ces trois micro-organismes contaminants de produits alimentaires sont responsables de pertes economiques importantes. Afin de minimiser ces pertes, un test de detection specifique rapide et sensible est presente. Une etude preliminaire a la mise au point du test est realisee pour z. Bailii ainsi que pour n. Fischeri la
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Winkelmann, Kay Hasko. "On the applicability of imaging spectrometry for the detection and investigation of contaminated sites with particular consideration given to the detection of fuel hydrocarbon contaminants in soil." kostenfrei, 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976701782.

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Tsopela, Aliki Theodora. "Development of a lab-on-chip platform integrating electrochemical microsensors for the detection of water contaminants based on algal physiology monitoring." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30017/document.

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Le suivi de la qualité de l'eau a été d'une grande importance depuis ces dernières décennies afin de trouver des solutions de contrôler la contamination de l'eau, induite en grande partie par les activités agricoles et industrielles. Bien que les méthodes conventionnelles, comme la chromatographie, sont des outils très précis et sensibles, un intérêt grandissant a été placé sur des techniques prometteuses qui peuvent être utilisées sur site, sont bas coût, et offrent la possibilité d'effectuer des analyses rapides. Le travail présenté ici est dédié au développement de composant Laboratoire sur
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Ibn, Hadj Hassine Aziza. "Evaluation de l’activité oestrogenique de contaminants et développement d’un bio-récepteur d’affinité pour la détection d’une xéno-hormone." Thesis, Saint-Etienne, EMSE, 2014. http://www.theses.fr/2014EMSE0740/document.

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Depuis plusieurs années, des agents exogènes environnementaux appelés perturbateurs endocriniens (PE), sont soupçonnés d’interférer avec les fonctions essentielles de reproduction et de développement chez de nombreux organismes vivants. Pour la protection de l’Environnement et de l’Homme, la Directive Cadre sur l’Eau établit des normes de qualité environnementale (NQE) et limite la concentration de trente-trois substances et de huit autres polluants dans les eaux de surface. En revanche, elle ne prend pas encore en compte l’effet de ces substances prioritaires sur les écosystèmes et les humain
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Asuni, Ganiyu. "Investigation of Advanced Dose Verification Techniques for External Beam Radiation Treatment." Medical Physics, 2012. http://hdl.handle.net/1993/21706.

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Intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) have been introduced in radiation therapy to achieve highly conformal dose distributions around the tumour while minimizing dose to surrounding normal tissues. These techniques have increased the need for comprehensive quality assurance tests, to verify that customized patient treatment plans are accurately delivered during treatment. In vivo dose verification, performed during treatment delivery, confirms that the actual dose delivered is the same as the prescribed dose, helping to reduce treatment delive
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Pais, Goyache Irene. "DEVELOPMENT OF A CHEMICAL FINGERPRINT FOR DETECTING UNTREATED HUMAN SEWAGE POLLUTION IN SURFACE WATER." Master's thesis, Temple University Libraries, 2015. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/360924.

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Civil Engineering<br>M.S.Env.E.<br>Untreated human sewage pollution in surface water is of concern because it contributes to the degradation of aquatic ecosystems and it could be a potential hazard to human health. Also, any pollution of surface water, which ultimately supplies drinking water, may affect the drinking water quality. Improper operation and maintenance of separate storm sewer systems are prominent contributors of untreated sewage to source waters, resulting from illicit connections, leakage of sewers, or cross-connections. This thesis studied anthropogenic markers to track untrea
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Brice, Caitlin E. "The Detection of Amazonian Manatees (Trichechus inunguis) Using Side-Scan Sonar and the Effect of Oil Activities on Their Habitats in Eastern Ecuador." NSUWorks, 2014. http://nsuworks.nova.edu/occ_stuetd/8.

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Substantial hunting pressure and habitat destruction caused by oil extraction has critically endangered the Amazonian manatee in Ecuador. The current population status is unknown because an effective method to observe them in the wild has yet to be developed. This study explored whether the Amazonian manatee persists or has been extirpated in the eastern Ecuadorian Amazon utilizing side-scan sonar to increase odds of detection. Spatial differences in probability of detection were quantified if manatees were observed. The level of chemical contamination was determined and compared spatially and
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41

Bouthillon, Marine. "Dispositif de discrimination entre des micro-organismes et leur environnement pour une détection précoce." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAD005.

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Cette thèse consiste en la conception d'un système d'acquisition et d'un algorithme de traitement d'image. Le but de ce travail est la détection de contaminants dans un contexte de contrôle qualité, particulièrement dans l'industrie pharmaceutique. Les contaminants sont des colonies de micro-organismes se développant sur membrane micro-poreuse. Nous avons choisi d'utiliser la mesure tridimensionnelle de surface pour réaliser l'acquisition des données, ce qui n'a jamais été fait pour des données micro-biologiques. Notre apport a de plus consisté à remplacer l'éclairage laser généralement utilis
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Quintão, Rosito. "Estudo comparativo da distribuição de hidrocarbonetos em amostras de sedimentos de rio por cromatografia a gás com detector por ionização em chama." reponame:Repositório Institucional da UFSC, 2015. https://repositorio.ufsc.br/xmlui/handle/123456789/162564.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, 2015.<br>Made available in DSpace on 2016-05-24T17:21:42Z (GMT). No. of bitstreams: 1 338843.pdf: 1671337 bytes, checksum: df477b4da951a4e974987734fd0914cd (MD5) Previous issue date: 2015<br>Neste trabalho foi feito um estudo sobre a presença de hidrocarbonetos de petróleo em amostras de sedimentos nos rios Barigui e Iguaçu, localizados próximo a uma refinaria de petróleo, situados no estado do Paraná, Brasil. As amostras de sedimento
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Pinto, Joana Isabel Pinheiro da Silva. "Rapid Detection of Contaminant Microorganisms in Microalgas Reators." Master's thesis, 2017. https://hdl.handle.net/10216/107081.

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Oliveira, Isabel Maria Cruz Pinto Aveleda de. "Rapid detection of contaminant microorganisms in food containers." Master's thesis, 2018. https://hdl.handle.net/10216/115174.

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Pinto, Joana Isabel Pinheiro da Silva. "Rapid Detection of Contaminant Microorganisms in Microalgas Reators." Dissertação, 2017. https://hdl.handle.net/10216/107081.

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Oliveira, Isabel Maria Cruz Pinto Aveleda de. "Rapid detection of contaminant microorganisms in food containers." Dissertação, 2018. https://hdl.handle.net/10216/115174.

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Oliveira, Isabel Maria Cruz Pinto Aveleda de. "Rapid detection of contaminant microorganisms in food containers." Dissertação, 2002. https://repositorio-aberto.up.pt/handle/10216/115174.

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Fan, Chung-chi, and 范仲奇. "Detection of Hydrocarbon Contaminant Using Attribute Analysis for GPR Data." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/66496848700560586210.

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碩士<br>國立中央大學<br>地球科學學系<br>102<br>Fossil fuel is still the primary source of energy and can be refined to other side products as raw materials or solvents. Spill, uncontrolled disposal, storage tank/pipeline leakage of fuel oil and solvents are threatening to biological system and impacting our living environment and even for human health risk. Hydrocarbon contaminant whose density is lighter than water would be considered as LNAPLs (Light Non Aqueous Phase Liquids). Common approaches including soil sampling, monitoring well installation, groundwater sampling, in-situ screening, and laboratory
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Deb, Tanmoy Kanti. "Implementation of membrane processes for improvement of the detection of food contaminants." Master's thesis, 2015. http://hdl.handle.net/10362/16425.

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The EM3E Master is an Education Programme supported by the European Commission, the European Membrane Society (EMS), the European Membrane House (EMH), and a large international network of industrial companies, research centres and universities (http://www.em3e.eu)<br>Food borne pathogen is a topmost important concern of present era due to deteriorating the food quality, contributing significant loss in the health aspect, global nutritional demand and economy. A rapid, fast and effective analytic system of pathogen identification and enumeration is the vital most important tool towards minimiz
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Havard, Thierry. "Application des liquides ioniques polymériques à empreinte moléculaire pour la résonance de plasmons de surface." Thèse, 2016. http://hdl.handle.net/1866/19518.

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Les matériaux énergétiques résiduels de l’entraînement militaire peuvent être dommageables pour la santé publique et pour l’environnement. Des critères environnementaux existent pour chacun de ces contaminants qui doivent être respectés afin d’assurer la qualité des eaux et des sols. Ainsi, à proximité des bases militaires, leur concentration respective doit être constamment sondée afin de respecter ces limites. Cependant, comme les méthodes de mesure actuelles sont compliquées et longues, elles ne permettent pas de suivre réellement ces concentrations. L’intérêt envers des capteurs usant de r
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