Einloggen

Thematische Bibliographien / Environmental sampling / Dissertationen

Um die anderen Arten von Veröffentlichungen zu diesem Thema anzuzeigen, folgen Sie diesem Link: Environmental sampling.

Dissertationen zum Thema „Environmental sampling“

Autor: Grafiati

Veröffentlicht am 4. Juni 2021

Zuletzt aktualisiert am 25. Juli 2025

Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an

Wählen Sie eine Art der Quelle aus:

Machen Sie sich mit Top-50 Dissertationen für die Forschung zum Thema "Environmental sampling" bekannt.

Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.

Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.

Sehen Sie die Dissertationen für verschiedene Spezialgebieten durch und erstellen Sie Ihre Bibliographie auf korrekte Weise.

1

Fishman, Benjamin. "Influence of Environmental Parameters on Mold Sampling Results." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6838.

Der volle Inhalt der Quelle

Annotation:

Mold is a type of fungus present in nearly all environments. Mold thrives under several environmental parameters such as high humidity and an adequate food source. A professional, such as an industrial hygienist, can measure mold in indoor and outdoor environments. Industrial hygienists commonly use a cascade impactor with a culture plate to capture air within a sampling area. While collecting air samples, environmental parameters such as temperature, humidity, and carbon dioxide are recorded. A laboratory then cultures and analyzes the samples, identifying the types and amounts of viable mold

APA, Harvard, Vancouver, ISO und andere Zitierweisen

2

Eichinski, Philip. "Smart sampling of environmental audio recordings for biodiversity monitoring." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/123022/1/Philip_Eichinski_Thesis.pdf.

Der volle Inhalt der Quelle

Annotation:

This thesis contributes to the field of acoustic environmental monitoring by developing novel semiautomated methods of processing long audio recordings to conduct species richness surveys efficiently. These methods allow a machine to select rich subset of the recordings though estimations of acoustic variety, which can then be presented to the human listener for species identifications. This work represents a step towards more effective biodiversity monitoring of vocal species that can be performed at a larger scale than is possible with traditional methods.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

3

CAMERADA, Maria Teresa. "Environmental Health Indicators. Proposal of a measurement scale for verification of the effectiveness of cleaning/sanitizing processes/disinfection in nosocomial environment." Doctoral thesis, Università degli studi di Ferrara, 2018. http://hdl.handle.net/11392/2488265.

Der volle Inhalt der Quelle

Annotation:

The level of environmental hygiene is often evaluated on olfactory and visual perception, in fact there are not universally recognized standards for measuring the effect of a detergent or the effectiveness of sanitation practices. In addition, when sanitation practices are not properly carried out, the environment may become a reservoir for microorganisms that are able to survive for days on furniture and floor surfaces, increasing the risk of infections. Preventive action plans developed in hospitals are mainly focused on controlling infections. This is of particular relevance due to the str

APA, Harvard, Vancouver, ISO und andere Zitierweisen

4

Bucciarelli, Mark. "Cluster sampling methods for monitoring route-level transit ridership." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13485.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

5

Guevara-Cue, Cristián Angelo. "Endogeneity and Sampling of Alternatives in Spatial Choice Models." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62098.

Der volle Inhalt der Quelle

Annotation:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 147-155).<br>Addressing the problem of omitted attributes and employing a sampling of alternatives strategy, are two key requirements of practical spatial choice models. The omission of attributes causes endogeneity when the unobserved variables are correlated with the measured variables, precluding the consistent estimation of the model parameters. The consistent estimation while sampling alternatives in

APA, Harvard, Vancouver, ISO und andere Zitierweisen

6

Squire, Sharon. "Quantifying uncertainty from environmental sampling of spatially and temporally variable systems." Thesis, Imperial College London, 2000. http://hdl.handle.net/10044/1/8412.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

7

Lyn, Jennifer A. "Optimising uncertainty from sampling and analysis of foods and environmental samples." Thesis, University of Sussex, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270732.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

8

Kuntz, Thomas James. "Campylobacter jejuni and Salmonella spp. Detection in Chicken Grow Out Houses by Environmental Sampling Methods." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/42526.

Der volle Inhalt der Quelle

Annotation:

Campylobacter and Salmonella are foodborne pathogens commonly associated with raw poultry. Although there has been much research done on isolating these pathogens from poultry production environments using cloacal swabs, fecal samples, intestinal tract contents and dissection, research involving environmental sampling has been limited. New and/or improved environmental sampling methods may provide an easy, convenient, and less time-consuming way to collect samples. Coupling these sampling methods with PCR may provide a relatively simple, rapid, and robust means of testing for foodborne patho

APA, Harvard, Vancouver, ISO und andere Zitierweisen

9

Li, Qihang 1964. "Sampling error and environmental noises in passive microwave rainfall retrieval from space." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/11204.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

10

Bazaco, Michael Constantine. "Quantitative Recovery of Listeria monocytogenes and Salmonella enterica from Environmental Sampling Media." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/30833.

Der volle Inhalt der Quelle

Annotation:

Environmental sampling is a pathogen monitoring technique that has become important in the food industry. Many food processing companies have adopted environmental sampling as a way to verify good manufacturing practices and sanitation plans in their facilities. Environmental sampling is helpful because it gives better information on the source of product contamination than end product sampling. Two specific pathogens of concern to the food industry are Listeria monocytogenes and Salmonella enterica. Environmental samples are rarely analyzed immediately, but instead may be batched for late

APA, Harvard, Vancouver, ISO und andere Zitierweisen

11

Santagata, Maria Caterina. "Simulation of sampling disturbance in soft clays using triaxial element tests." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/12124.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

12

Fotopoulos, Fotios 1976. "Simulation of the sampling properties of the Global Precipitation Measurement Mission." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/84816.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

13

Reynolds, Hayley. "A spatial sampling scheme for a road network." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/63776.

Der volle Inhalt der Quelle

Annotation:

Rabies has been reported in Tanzania, mainly in the southern highland regions, since 1954. To date, rabies is endemic in all districts in Tanzania and efforts are being made to contain the disease. It was determined that mass vaccination of at least 70% of an animal population is most effective, in terms of profitability and cost, in reducing transmission of rabies. The current approach for vaccination in Tanzanian villages takes some features from the EPI method but is rather basic and unreliable. This mini-dissertation proposes using a sampling technique which incorporates the spatial compon

APA, Harvard, Vancouver, ISO und andere Zitierweisen

14

Kerr, Kent. "Sampling for Beryllium Surface Contamination using Wet, Dry and Alcohol Wipe Sampling." Washington, D.C. : Oak Ridge, Tenn. : United States. National Nuclear Security Administration ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2004. http://www.osti.gov/servlets/purl/837587-M4P95G/native/.

Der volle Inhalt der Quelle

Annotation:

Thesis (M.S.); Submitted to Central Missouri State University, Warrensburg, MO (US); 17 Dec 2004.<br>Published through the Information Bridge: DOE Scientific and Technical Information. Kerr, Kent. NNSA Kansas City Site Office (US) NNSA Kansas City Site Office. 12/17/2004. Report is also available in paper and microfiche from NTIS.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

15

Morrow, Michael Thomas. "A Self-Sustaining, Boundary-Layer-Adapted System for Terrain Exploration and Environmental Sampling." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/34186.

Der volle Inhalt der Quelle

Annotation:

This thesis describes the preliminary design of a system for remote terrain exploration and environmental sampling on worlds with dense atmospheres. The motivation for the system is to provide a platform for long-term scientific studies of these celestial bodies. The proposed system consists of three main components: a buoyancy-driven glider, designed to operate at low altitude; a tethered energy harvester, extracting wind energy at high altitudes; and a base station to recharge the gliders. This system is self-sustaining, extracting energy from the planetary boundary layer. <p> A nine degree

APA, Harvard, Vancouver, ISO und andere Zitierweisen

16

Lacorazza, Camila. "Evaluation of environmental samples as a sampling method for detecting pathogens in zebrafish." Thesis, Uppsala universitet, Institutionen för kvinnors och barns hälsa, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-385875.

Der volle Inhalt der Quelle

Annotation:

Zebrafish are becoming increasingly popular to use in different kinds of research projects as research animals, replacing rodents in many fields. When using animals for research, it is important to keep track of the animal health in order to get reliable results. The purpose of the study was to investigate whether these pathogens could be found analyzing environmental materials with real-time PCR instead of euthanizing fish and submitting them for histopathology. Also, to see if any material differentiated from the rest regarding accessibility to work with in a routine diagnostic laboratory.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

17

Lu, Chensheng. "Pesticide biomonitoring : a feasibility study of saliva sampling in rats /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/8451.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

18

Hart, Cheryl K. "Theory and evaluation of a new physiologic sampling pump /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/8459.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

19

Di, Bonito Marcello. "Trace elements in soil pore water : a comparison of sampling methods." Thesis, University of Nottingham, 2005. http://eprints.nottingham.ac.uk/10123/.

Der volle Inhalt der Quelle

Annotation:

This thesis examined a range of methods for sampling soil pore water to investigate the chemistry of trace elements. In particular, the study assessed whether Rhizon samplers, centrifugation, high pressure squeezing and soil suspensions in simulated pore water can be viable approaches for obtaining representative samples of equilibrated soil pore water. Results for metal solubility and speciation were interpreted in terms of both soil morphological effects on trace metal dynamics and artefacts introduced at various stages during sample preparation and handling. The main soil used in the study

APA, Harvard, Vancouver, ISO und andere Zitierweisen

20

Tsai, Yeng-Chieh. "The application of two-dimensional genomic DNA nylon matrix for environmental samples analysis." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 67 p, 2009. http://proquest.umi.com/pqdweb?did=1654501591&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

21

Anderson, Cody Allen. "Permeation Sampling of BTEX and Gasoline." University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1279115371.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

22

Schroeder, Matthew William. "Association of Campylobacter spp. Levels between Chicken Grow-Out Environmental Samples and Processed Carcasses." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/32169.

Der volle Inhalt der Quelle

Annotation:

Campylobacter spp. have been isolated from live poultry, production environment, processing facility, and raw poultry products. The detection of Campylobacter using both quantitative and qualitative techniques would provide a more accurate assessment of pre- or post harvest contamination. Environmental sampling in a poultry grow-out house, combined with carcass rinse sampling from the same flock may provide a relative assessment of Campylobacter contamination and transmission. Air samples, fecal/litter samples, and feed pan/drink line samples were collected from four commercial chicken grow

APA, Harvard, Vancouver, ISO und andere Zitierweisen

23

McMillan, Lindsay Antonia. "Groundwater quality : representative and appropriate sampling of long-screen wells." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6484/.

Der volle Inhalt der Quelle

Annotation:

Groundwater quality sampling guidance typically requires representative samples to be obtained. Such guidance is not always clear what this means and which sampling methods are most appropriate. The situation is complicated by increasing well screen/open interval length. Uncertainty, resulting particularly from observations of vertical flow in wells has led to calls for the use of long-screen (> 3 m) wells to be abandoned for groundwater quality monitoring. Here, four complementary field and modelling studies at various scales are used to examine appropriate groundwater quality sampling in suc

APA, Harvard, Vancouver, ISO und andere Zitierweisen

24

Sihabut, Tanasri McDow Stephen R. "Sampling artifacts of particulate organic species and their effects on receptor modeling results /." Philadelphia, Pa. : Drexel University, 2005. http://dspace.library.drexel.edu/handle/1860/512.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

25

Ernst, Michael Jules 1960. "Modeling multicomponent vacuum flow, transport, and outgassing in a membrane-inlet vapor sampling probe." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/36502.

Der volle Inhalt der Quelle

Annotation:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1994.<br>Vita.<br>Includes bibliographical references (p. 341-345).<br>by Michael Jules Ernst.<br>Ph.D.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

26

Persoon, Carolyn Lee. "Spatial and seasonal trends of atmospheric PCBs in urban areas captured by passive sampling." Diss., University of Iowa, 2010. https://ir.uiowa.edu/etd/873.

Der volle Inhalt der Quelle

Annotation:

The overall hypothesis of this research is that the use of passive samplers is an effective method to measure spatial and seasonal trends of atmospheric PCBs in an urban environment. In support of this, I extracted, analyzed and quantified congener specific concentrations from over 200 passive samples and over 200 active sampler, or Hi-Vols. I studied best practices for the use of methods to derive R-values and the application of R-values on mass accumulated on passive samplers for both indoor and outdoor air and found that indoor air uptake of PCBs was consistent over time and at different lo

APA, Harvard, Vancouver, ISO und andere Zitierweisen

27

Clare, Evan. "DECOMPOSING A WATERSHED’S NITRATE SIGNAL USING SPATIAL SAMPLING AND CONTINUOUS SENSOR DATA." UKnowledge, 2019. https://uknowledge.uky.edu/ce_etds/87.

Der volle Inhalt der Quelle

Annotation:

Watershed features, physiographic setting, geology, climate, and hydrologic processes combine to produce a time-variant nutrient concentration signal at the watershed outlet. Anthropogenic influences, such as increased agricultural pressures and urbanization, have increased overall nutrient loadings delivered to the fluvial network. The impact of such increased nutrient loadings on Kentucky’s drinking water remains a potential threat to the region. By coupling spatial sampling of nitrate concentrations in surface water with contemporary nutrient and water quality sensor technology, a decomposi

APA, Harvard, Vancouver, ISO und andere Zitierweisen

28

Longsmith, Rebecca Johnson. "A BIOLOGICAL MONITORING INTERNSHIP WITH THE OHIO ENVIRONMENTAL PROTECTION AGENCY, DIVISION OF SURFACE WATER." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1451932666.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

29

Chatterjee, Kanistha. "A Novel, Periodic Sampling Method to Assess Airborne Bacteria Populations." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1313564597.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

30

Farhadi, Leila. "Estimation of land surface water and energy balance flux components and closure relation using conditional sampling." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/70757.

Der volle Inhalt der Quelle

Annotation:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 348-364).<br>Models of terrestrial water and energy balance include numerical treatment of heat and moisture diffusion in the soil-vegetation-atmosphere continuum. These two diffusion and exchange processes are linked only at a few critical points. The performance and sensitivity of models are highly dependent on the nature of these linkages that are expressed as the closure function between heat and mois

APA, Harvard, Vancouver, ISO und andere Zitierweisen

31

Liu, Hanqing M. Eng Massachusetts Institute of Technology. "Analysis of volatile organic compounds (VOCs) in soil via passive sampling : measuring partition and diffusion coefficients." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99606.

Der volle Inhalt der Quelle

Annotation:

Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 55-57).<br>Passive sampling has been used as a qualitative and semi-quantitative method in detecting volatile organic compound (VOCs) concentrations in soil vapors or water. Passive sampling for soil vapor takes an absorptive material and places it underground for a period of time to allow the VOCs to diffuse into the absorptive materials. In this report, I use low density polyethylene (PE) as the

APA, Harvard, Vancouver, ISO und andere Zitierweisen

32

Martin, Marie M. "Comparison of three methods of breath sampling for biological monitoring of volatile organic chemicals /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/8472.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

33

Rana, SM Masud. "Contaminant Spread Forecasting and Sampling Location Identification in a Water Distribution Network." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1383909255.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

34

Hollingsworth, Emily K. "The Spatial Heterogeneity of Periphyton in Eight Southeastern Ohio Streams: How Far Can One Sample Take You?" Ohio : Ohio University, 2007. http://www.ohiolink.edu/etd/view.cgi?ohiou1181835600.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

35

Jensen, David G. (David Gannon). "Quantitative analysis of volatile organic compounds (VOCs) in soil via passive sampling : polyethylene sampler design and optimization." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99601.

Der volle Inhalt der Quelle

Annotation:

Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 53-55).<br>The potential for the release of volatile organic compounds (VOCs) to our natural environment is pervasive. However, the ability to accurately measure and predict VOC soil vapor concentrations is still limited. A polyethylene (PE) quantitative passive sampler using performance reference compounds and deployed via a hand driven probe is proposed as a solution. Additionally, a 1D diffusio

APA, Harvard, Vancouver, ISO und andere Zitierweisen

36

Apell, Jennifer Nicole. "Using polyethylene passive sampling to assess transport of polychlorinated biphenyls (PCBs) between contaminated sediments, water, and biota." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113473.

Der volle Inhalt der Quelle

Annotation:

Thesis: Ph. D., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2017<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Polychlorinated biphenyls (PCBs), which were a widely used group of chemicals before their manufacture was banned in 1979 in the United States, still contaminate numerous aquatic systems. Although there are ongoing efforts to remediate these sites, our ability to implement effective remediation strategies has been hindered by a limited understanding of how PCBs are transported in the environment as wel

APA, Harvard, Vancouver, ISO und andere Zitierweisen

37

Silvadasan, Xavier. "Environmental performance of steel grit and specialty sand as abrasives." ScholarWorks@UNO, 2004. http://louisdl.louislibraries.org/u?/NOD,175.

Der volle Inhalt der Quelle

Annotation:

Thesis (M.S.)--University of New Orleans, 2004.<br>Title from electronic submission form. "A thesis ... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Civil and Environmental Engineering."--Thesis t.p. Vita. Includes bibliographical references.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

38

Neal, Emily R. "ESCHERICHIA COLI STRAIN DIVERSITY IN HUMANS: EFFECTS OF SAMPLING EFFORT AND METHODOLOGY." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/984.

Der volle Inhalt der Quelle

Annotation:

Studies investigating Escherichia coli strain diversity and demographics in human hosts are frequently inconsistent regarding sampling effort and methodology while current strain typing methods are often expensive or laborious. To rectify these inconsistencies, sampling effort was investigated by comparing the diversity of 15-isolate collections to 100-isolate collections from 3 human subjects. Temporal variation in E. coli strain diversity was also studied by collecting 15 isolates once every 6 months. Additionally, strain identification and diversity collected by different sampling methods (

APA, Harvard, Vancouver, ISO und andere Zitierweisen

39

Dou, Yiping. "Dynamic Bayesian models for modelling environmental space-time fields." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/634.

Der volle Inhalt der Quelle

Annotation:

This thesis addresses spatial interpolation and temporal prediction using air pollution data by several space-time modelling approaches. Firstly, we implement the dynamic linear modelling (DLM) approach in spatial interpolation and find various potential problems with that approach. We develop software to implement our approach. Secondly, we implement a Bayesian spatial prediction (BSP) approach to model spatio-temporal ground-level ozone fields and compare the accuracy of that approach with that of the DLM. Thirdly, we develop a Bayesian version empirical orthogonal function (EOF) method to i

APA, Harvard, Vancouver, ISO und andere Zitierweisen

40

Soo, Yu Xiang Jaren. "Benchtop testing of polyethylene passive sampling towards a quantitative analysis of volatile organic compounds (VOCs) in soil vapours." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99631.

Der volle Inhalt der Quelle

Annotation:

Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 42-43).<br>The feasibility of polyethylene (PE) as a passive sampler for quantitative analysis of volatile organic compounds (VOCs) was analysed in this work by means of a benchtop testing. A benchtop physical model was setup, which consisted of a jar of glass beads or sand, containing a known mass of toluene as the compound of concern (COC). A beaker of water was placed in the physical model as a

APA, Harvard, Vancouver, ISO und andere Zitierweisen

41

Sobchuk, Catherine Elizabeth. "Evaluating the combined use of three-dimensional hydrodynamic modeling and polyethylene passive sampling in the Lower Duwamish Waterway." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119323.

Der volle Inhalt der Quelle

Annotation:

Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 122-124).<br>Polyethylene (PE) passive samplers are capable of measuring in-situ, freely dissolved, time-averaged concentration distributions of contaminants in air, surface water, and sediment bed porewater. This sampling technique can be coupled with a three dimensional (3D) hydrodynamic model of a given surface water body to identify where sources contributing to the measured concentration dist

APA, Harvard, Vancouver, ISO und andere Zitierweisen

42

Parsons, Robert Lee. "Assessment and optimization of site characterization and monitoring activities using geostatistical methods within a geographic information systems environment." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/32847.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

43

Zhang, Liang. "Classification and ranking of environmental recordings to facilitate efficient bird surveys." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/107097/1/Liang_Zhang_Thesis.pdf.

Der volle Inhalt der Quelle

Annotation:

This thesis contributes novel computer-assisted techniques to facilitating bird species surveys from a large number of environmental audio recordings. These techniques are applicable to both manual and automated recognition of bird species by removing irrelevant audio data and prioritising those relevant data for efficient bird species detection. This work also represents a significant step towards using automated techniques to support experts and the general public to explore and gain a better understanding of vocal species.

APA, Harvard, Vancouver, ISO und andere Zitierweisen

44

Simon, Philippe 1964. "Long-term integrated sampling to characterize airborne volatile organic compounds in indoor and outdoor environments." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=34455.

Der volle Inhalt der Quelle

Annotation:

Sampling methods used for the assessment of exposure to volatile organic chemicals (VOCs) in the workplace or for environmental studies are now limited to an upper integrative sampling time of 24 hours or less. Generally, these methods lack versatility and are difficult to use. A passive sampler that can extend sampling periods was developed as part of this research. This novel sampler relies on capillary tubes to restrict and control ambient air entry into an evacuated sample container.<br>A mathematical model was derived by modifications to the Hagen-Poiseuille and ideal gas laws. This model

APA, Harvard, Vancouver, ISO und andere Zitierweisen

45

Smyth, John Charles. "A novel air sampling and analytical method for determination of airborne bronopol." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001744.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

46

Montgomery, Sharlan Renae. "Development of a Chloride Concentration Sampling Protocol for Concrete Bridge Decks." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/3981.

Der volle Inhalt der Quelle

Annotation:

As the primary cause of concrete bridge deck deterioration in the United States is corrosion of the steel reinforcement as a result of the application of chloride-based deicing salts, chloride concentration testing is among the most common techniques for evaluating the condition of a concrete bridge deck. The objectives of this research were to 1) compare concrete drilling and powder collection techniques to develop a sampling protocol for accurately measuring chloride concentrations and 2) determine the number of chloride concentration test locations necessary for adequately characterizing th

APA, Harvard, Vancouver, ISO und andere Zitierweisen

47

McDonald, Lauren. "Wipe Sampling Methodologies to Assess Exposures to Metals in Urban Canadian Homes: 1 Cadmium, Lead, Yttrium 2 Antimony, Arsenic, Chromium, Copper, Nickel." Thesis, University of Ottawa (Canada), 2010. http://hdl.handle.net/10393/28588.

Der volle Inhalt der Quelle

Annotation:

Wipe sampling is a means of monitoring exposures to contaminants which has been used extensively for assessment of lead (Pb) in housedust in the U.S. This thesis reports the first baseline wipe dataset for urban Canadian homes, for Pb and other metal(loid)s including: arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), and antimony (Sb). The literature review covers sampling methods, health effects, and sources. The digestion procedure ASTM 1644 is the accepted HNO3 hotplate protocol for determination of Pb in wipes. However in this study, HF was added to enhance extraction ef

APA, Harvard, Vancouver, ISO und andere Zitierweisen

48

Brungard, Colby W. "Alternative Sampling and Analysis Methods for Digital Soil Mapping in Southwestern Utah2." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/973.

Der volle Inhalt der Quelle

Annotation:

Digital soil mapping (DSM) relies on quantitative relationships between easily measured environmental covariates and field and laboratory data. We applied innovative sampling and inference techniques to predict the distribution of soil properties, soil attributes, taxonomic classes, and dominant vegetation across a 30,000-ha complex Great Basin landscape in southwestern Utah. This arid rangeland was characterized by rugged topography, diverse vegetation, and intricate geology. Environmental covariates calculated from digital elevation models (DEM) and spectral satellite data were used to repre

APA, Harvard, Vancouver, ISO und andere Zitierweisen

49

Ho, Sai Hang. "Analysis of airborne organic compounds using thermal desorption- gas chromatography-mass spectrometry methods /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202004%20HO.

Der volle Inhalt der Quelle

APA, Harvard, Vancouver, ISO und andere Zitierweisen

50

Swartz, Carol Dorothea. "Integrating environmental sampling and wildlife biomonitoring in exposure and effects assessment: genotoxins at multiple levels of biological organization." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/269.

Der volle Inhalt der Quelle

Annotation:

Ecotoxicology studies attempt to evaluate the consequences of exposure to environmental contaminants by defining exposure and effects parameters across multiple levels of biological organization. Genetic markers are well-suited for these studies as they can track both somatic and evolutionary effects. In the studies reported here, connections among contaminant levels in environmental media and biota, in vitro bioassay results, and changes in individual- and population-level biomarkers were explored. Sediment and/or wildlife samples were collected from each of three sites of documented environm

APA, Harvard, Vancouver, ISO und andere Zitierweisen

Wir bieten Rabatte auf alle Premium-Pläne für Autoren, deren Werke in thematische Literatursammlungen aufgenommen wurden. Kontaktieren Sie uns, um einen einzigartigen Promo-Code zu erhalten!