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Artykuły w czasopismach na temat "Contaminant transfers"

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Sterpenich, J., E. C. Gaucher, N. H. Schovsbo, J. G. Lerat, R. Mosser-Ruck, and J. Pironon. "Geochemistry of Aquifer in Contact with Alum Shale: Evidence of Limited Contaminant Transfers." Procedia Earth and Planetary Science 17 (2017): 786–89. http://dx.doi.org/10.1016/j.proeps.2017.01.029.

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Rivoira, Luca, Michele Castiglioni, Nicola Nurra, et al. "Polycyclic Aromatic Hydrocarbons and Polychlorinated Biphenyls in Seawater, Sediment and Biota of Neritic Ecosystems: Occurrence and Partition Study in Southern Ligurian Sea." Applied Sciences 12, no. 5 (2022): 2564. http://dx.doi.org/10.3390/app12052564.

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The Mediterranean Sea is subjected to a high anthropic pressure, which determines direct or indirect discharges of persistent organic pollutants deriving from intensive industrial activities. These compounds could easily enter and contaminate the whole marine compartment, with possible transfers (and contamination) among water, sediment and biota. Based on the above-mentioned assumptions, in this work we studied the presence of 16 polycyclic aromatic hydrocarbons (PAHs) and 14 dioxin and non-dioxin-like polychlorinated biphenyls (PCBs) in the neritic protected marine area of the Southern Ligur
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Younsi, Zohir, Lounes Koufi, and Hassane Naji. "Numerical study of the effects of ventilated cavities outlet location on thermal comfort and air quality." International Journal of Numerical Methods for Heat & Fluid Flow 29, no. 11 (2019): 4462–83. http://dx.doi.org/10.1108/hff-09-2018-0518.

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Purpose A comprehensive investigation on the outlet air position effects on the thermal comfort and air quality has been achieved. In addition, airflow and temperature distributions in ventilated cavities filled with an air-CO2 mixture with mixed convection are predicted. The airflow enters from the cavity through an opening in the lower side of the left vertical wall and exits through the opening in one wall of the cavity. This paper aims to investigate the outlet location effect, four different placement configurations of output ports are considered. Three of them are placed on the upper sid
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Laceby, J. P., C. Chartin, O. Evrard, Y. Onda, L. Garcia-Sanchez, and O. Cerdan. "Rainfall erosivity in subtropical catchments and implications for erosion and particle-bound contaminant transfer: a case-study of the Fukushima region." Hydrology and Earth System Sciences Discussions 12, no. 7 (2015): 7225–66. http://dx.doi.org/10.5194/hessd-12-7225-2015.

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Abstract. The Fukushima Dai-ichi nuclear power plant (FDNPP) accident in March 2011 resulted in a significant fallout of radiocesium over the Fukushima region. After reaching the soil surface, radiocesium is almost irreversibly bound to fine soil particles. Thereafter, rainfall and snow melt run-off events transfer particle-bound radiocesium downstream. Erosion models, such as the Universal Soil Loss Equation (USLE), depict a proportional relationship between rainfall and soil erosion. As radiocesium is tightly bound to fine soil and sediment particles, characterizing the rainfall regime of th
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Warmka, Anna, Erin L. Cortus, Kevin A. Janni, Abby Schuft, and Sally Noll. "Opportunities and Methods for Using Fluorescent Gel as a Proxy for Pathogen Transfer in Biosecurity Research." Journal of Agricultural Safety and Health 29, no. 1 (2023): 57–70. http://dx.doi.org/10.13031/jash.15253.

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Highlights While fluorescing gel may evaporate from a surface, luminance of the surface does not change. Fluorescing gel exhibits thresholds beyond which additional gel density does not increase luminance. Fluorescing gel only transfers between surfaces when it is wet. There are limits to relating luminance and mass transfer. Fluorescent material is a useful proxy for contamination transfer demonstration and research. Abstract. Glo Germ fluorescing material is a popular tool for teaching and researching contaminant transfer in and out of agriculture. The objectives of this paper were to: (1) q
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Monaghan, R. M., L. C. Smith, and R. W. Muirhead. "Pathways of contaminant transfers to water from an artificially-drained soil under intensive grazing by dairy cows." Agriculture, Ecosystems & Environment 220 (March 2016): 76–88. http://dx.doi.org/10.1016/j.agee.2015.12.024.

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Perou, A. L., and J. M. Vergnaud. "Process of contaminant transfers during coextrusion of food packages made from recycled layer and virgin polymer layer." Plastics, Rubber and Composites 28, no. 2 (1999): 74–79. http://dx.doi.org/10.1179/146580199101540132.

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Tisseau, M. A., N. Fauchon, J. Cavard, and T. Vandevelde. "Pesticide contamination of water resources: a case study - the rivers in the Paris region." Water Science and Technology 34, no. 7-8 (1996): 147–52. http://dx.doi.org/10.2166/wst.1996.0614.

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For a number of years, the Compagnie Générale des Eaux has been studying pesticide contamination of surface water in order to better understand the origins and the main transfer mechanisms of these pollutants into water resources. Sampling campaigns are being carried out on the three main rivers of the Paris area to monitor a number of products from the triazine and urea families. This monitoring has confirmed the extension of agricultural non-point source pollution. The products being sought are present in the three rivers and, in most cases, in significant concentrations. Atrazine is the mos
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Tappin, A. D., P. J. Statham, J. D. Burton, and S. Gellers-Barkmann. "Distributions and fluxes of contaminant metals in the North Sea: comparisons between field measurements and model simulations using NOSTRADAMUS." Environmental Chemistry 5, no. 1 (2008): 51. http://dx.doi.org/10.1071/en07033.

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Environmental context. The North Sea, which is of significant ecological, economic and recreational value to NW Europe, has for many years received enhanced inputs of contaminant metals arising from human activity around its shores. Fluxes of copper, nickel, zinc, chromium and other constituents throughout the southern North Sea were estimated using a numerical model in order to identify the main sources and sinks for these metals. Comparison of model output with independent and other data showed good agreement in general. The results indicate that models of the kind developed here can be used
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Monaghan, RM, DJ Houlbrooke, and LC Smith. "The use of low-rate sprinkler application systems for applying farm dairy effluent to land to reduce contaminant transfers." New Zealand Journal of Agricultural Research 53, no. 4 (2010): 389–402. http://dx.doi.org/10.1080/00288233.2010.505943.

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Rozprawy doktorskie na temat "Contaminant transfers"

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Bonnière, Antoine. "L'approche par multi-traçage géochimique, isotopique et organique comme outil d'étude de l'origine et du transfert des contaminants dans les eaux souterraines : Application à la nappe de la Vistrenque." Electronic Thesis or Diss., Nîmes, 2024. http://www.theses.fr/2024NIME0004.

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Les masses d'eaux souterraines soutiennent 65% de l’alimentation en eau potable en France. L'accroissement des pressions anthropiques entraîne des pollutions des eaux et la fermeture de captages. La diversité des pollutions existantes et l'apparition de contaminants émergents requièrent une compréhension globale du fonctionnement des masses d’eau souterraine. La mise en place de plan d'actions par les collectivités et gestionnaires de la ressource nécessite d’identifier les origines des contaminants et de définir les zones vulnérables avec précision. L’objectif de ce travail consiste en la mis
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Froger, Claire. "Sources et dynamiques spatiales et temporelles des contaminations en éléments traces et hydrocarbures aromatiques polycycliques du continuum atmosphère - sol - rivière d'un bassin versant contrasté." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS394/document.

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Le développement des activités humaines, notamment industrielles, depuis le 19ième siècle a engendré une contamination massive de l’atmosphère à la rivière, en passant par la biosphère et les sols. Si les contaminations ont fortement diminué depuis la fin des années 1960, elles persistent notamment en milieu urbain, où se concentrent un grand nombre d’activités humaines. Afin de pouvoir gérer au mieux la pollution, il est nécessaire de comprendre la dynamique de transfert des contaminants, ainsi que leurs sources, à l’échelle du continuum atmosphère – sol – rivière. Cette étude a donc pour obj
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Weber, Sofie Aimee. "Contaminant transport and mass transfer to runoff including infiltration." Thesis, The University of Arizona, 1997. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0151_sip1_w.pdf&type=application/pdf.

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Martin, Sébastien. "Mécanismes de sorption et d'oxydoréduction à l'interface oxyde/solution : couplage chimie / transport." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S157.

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Au vu de l'omniprésence des oxydes de fer dans le milieu naturel, et en particulier la goethite et l'hématite qui sont les formes les plus stables, mais aussi de la prolifération des contaminants émergents dans l'environnement, comme les fluoroquinolones, notre objectif a été d'étudier leur réactivité et de définir les mécanismes de sorption et d'oxydoréduction à l'interface oxyde/solution dans des conditions statiques (batch) et hydrodynamiques contrôlées (colonne) en couplant une étude macroscopique (techniques chromatographiques, LC/MS, LC/UV) avec une approche microscopique (spectroscopie
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Rosca, Iosif-Daniel. "Applications du transfert de matière et chaleur : transfert de contaminant entre emballage cylindrique et aliment solide." Saint-Etienne, 1998. http://www.theses.fr/1998STET4027.

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En réponse à un grand nombre de travaux réalisés sur la migration de contaminants des emballages polymères dans l'aliment, ce travail est une approche théorique sur le procédé de diffusion dans l'aliment solide contenu dans de bouteilles cylindriques. Des modèles mathématiques et numériques, prenant en compte les différents paramètres sont développés dans le premier chapitre, pour représenter la diffusion du contaminant situé dans une bouteille faite d'une seule couche de polymère, lorsque l'aliment est solide. Les paramètres nécessaires au transfert sont définis. Le recyclage des emballages p
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Sime, Kristian John. "Characterisation and surface analysis of polymer interfaces used in dye diffusion thermal transfer printing." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/10559.

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The research involved determining the processes that occur during dye diffusion thermal transfer printing. Dye diffusion printing is a novel method of printing photo quality graphics from a personal computer. The process involves two polymer films coming into contact, one containing a dye, and the diffusion of the dye from this donor sheet onto the receiving sheet using heating elements to drive the diffusion process. In this high temperature, high pressure, and short time scale regime undesirable adhesion between the two polymer sheets is observed. It is this adhesion and its mechanisms that
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Gatel, Laura. "Construction et évaluation d'un modèle de transport de contaminants réactif couplé surface-subsurface à l'échelle du versant." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAU001/document.

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L'utilisation de pesticides sur les surfaces agricoles conduit à une contamination généralisée des eaux de surface et de subsurface en France. Dans l'attente d'une évolution profonde des pratiques agricoles et d'une baisse durable de l'utilisation des pesticides, il est intéressant de chercher à limiter des transferts des zones agricoles aux zones aquatiques. Pour mieux agir sur les voies de transfert, il est nécessaire d'approfondir les connaissances des processus en jeu et de leurs interactions éventuelles et de tirer au mieux partie des observations du terrain.L'objectif de cette thèse est
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Marchand, Estelle. "Analyse de sensibilité déterministe pour la simulation numérique du transfert de contaminants." Phd thesis, Université Paris Dauphine - Paris IX, 2007. http://tel.archives-ouvertes.fr/tel-00271632.

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Les questions de sûreté et d'incertitudes sont au centre des études de faisabilité pour un site de stockage souterrain de déchets nucléaires, en particulier l'évaluation des incertitudes sur les indicateurs de sûreté qui sont dues aux incertitudes sur les propriétés du sous-sol et des contaminants. L'approche globale par les méthodes probabilistes de type Monte Carlo fournit de bons résultats, mais elle demande un grand nombre de simulations. La méthode déterministe étudiée ici est complémentaire. Reposant sur la décomposition en valeurs singulières de la dérivée du modèle, elle ne donne qu'un
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Chen, Hua. "Investigation of Contaminant Transport in Tidally-Influenced Aquifers: Experiment and Analysis." ScholarWorks @ UVM, 2010. http://scholarworks.uvm.edu/graddis/43.

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Tidally-induced head fluctuation is a natural phenomenon in coastal regions. The discharge of groundwater through sediments will occur anywhere that the aquifer is hydraulically connected to a surface water body and the time averaged tidally-influenced water level in the aquifer is higher than sea level, and almost all coastal regions are subject to such flow. With the development of coastal areas, the discharge of groundwater contaminants into tidally affected coastal water bodies has become a significant problem. Biota that live in the benthic region are known to be sensitive to the c
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Oursel, Benjamin. "Transferts et dynamique des contaminants métalliques en zone côtière. : Impact d’une grande agglomération méditerranéenne." Thesis, Toulon, 2013. http://www.theses.fr/2013TOUL0019/document.

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L’étude réalisée lors de ce travail de thèse porte sur l’évaluation de l'impact de l’agglomération Marseillaise sur le milieu côtier à travers la quantification des éléments traces métalliques (ETM) et du carbone organique. Sur le littoral méditerranéen français, Marseille représente la plus grande agglomération (~ 1.7M Ha) et possède la station d’épuration (STEP) enterrée la plus grande d’Europe (capacité de 1.62M équivalent-habitants), avec une façade directement ouverte sur la Méditerranée. L’impact de cette zone urbaine et industrialisée (flux brut) sur la zone côtière reste mal compris, d
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Książki na temat "Contaminant transfers"

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Dou, Zhi, Zhifang Zhou, Jinguo Wang, and Yong Huang. Mass Transfer Dynamics of Contaminants in Fractured Media. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-9187-7.

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Napier, B. A. Transfer factors for contaminant uptake by fruit and nut trees. United States Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, 2014.

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United States. Environmental Protection Agency and United States. Office of Solid Waste, eds. Best management practices (bmps) for soil treatment technologies: Suggested operational guidelines to prevent cross-media transfer of contaminants during clean-up activities. U.S. Environmental Protection Agency, Solid Waste and Emergency Response, [Office of Solid Waste, 1997.

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United States. Environmental Protection Agency. and United States. Office of Solid Waste., eds. Best management practices (bmps) for soil treatment technologies: Suggested operational guidelines to prevent cross-media transfer of contaminants during clean-up activities. U.S. Environmental Protection Agency, Solid Waste and Emergency Response, [Office of Solid Waste, 1997.

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Lippmann, Morton, and Richard B. Schlesinger. Characterization of Contaminants and Environments. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190688622.003.0002.

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This chapter describes the extensive scientific terminology needed to describe the various classes of chemical contaminants as they occur in environmental media (air, water, soil, etc.) and the structural aspects and dynamic mass and energy transfers within and among the atmosphere, hydrosphere, lithosphere, and biosphere. It also introduces: the characteristics of occupational environments; health effects attributable to occupational and environmental exposures; dose response relationships in populations; and how they are affected by anthropogenic (human activity caused) inputs and disruption
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Zhou, Zhifang. Mass Transfer Dynamics of Contaminants in Fractured Media. Springer, 2024.

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Reuber, Barbara Suzanne. A fugacity model of organic contaminant transfer at the sediment-water interface. 1987.

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Contaminants Transport in Soils: Principles and Applications. Taylor & Francis Group, 2014.

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Best management practices (bmps) for soil treatment technologies: Suggested operational guidelines to prevent cross-media transfer of contaminants during clean-up activities. U.S. Environmental Protection Agency, Solid Waste and Emergency Response, [Office of Solid Waste, 1997.

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Stone, M. Series of Proceedings and Reports: the Role of Erosion and Sediment Transport in Nutrient and Contaminant Transfer: Proceedings of a Symposium Held at Waterloo, Ontario, July 2000 (IAHS Publication). IAHS Press, 2000.

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Części książek na temat "Contaminant transfers"

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Munholland, Jonah, Derek Rosso, Davinder Randhawa, Craig Divine, and Andy Pennington. "Advances in Low-Temperature Thermal Remediation." In Advances in the Characterisation and Remediation of Sites Contaminated with Petroleum Hydrocarbons. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34447-3_18.

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AbstractRemediation through traditional high-temperature thermal techniques (over 100 °C) are designed to remove contaminants like petroleum hydrocarbons via enhanced mobilization and volatilization. However, remedies of this nature can require significant infrastructure, capital, operational and maintenance costs, along with high energy demands and carbon footprints. Conversely, low-temperature thermal approaches (in the mesophilic range of ~15–40 °C) are an inexpensive and more sustainable method that can enhance the physical, biological, and chemical processes to remove contaminants. Heat t
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Jensen, Allan Astrup. "Transfer of Chemical Contaminants into Human Milk." In Chemical Contaminants in Human Milk. CRC Press, 2024. https://doi.org/10.1201/9781003574798-2.

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Menefee, Dorothy S., and Ganga M. Hettiarachchi. "Contaminants in Urban Soils: Bioavailability and Transfer." In Urban Soils. CRC Press, 2017. http://dx.doi.org/10.1201/9781315154251-8.

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Mackay, Donald, and Kathryn E. Clark. "Predicting the Environmental Partitioning of Organic Contaminants and their Transfer to Biota." In Organic Contaminants in the Environment. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-009-4329-2_5.

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Wild, S. R., and K. C. Jones. "Organic Contaminants in Wastewaters and Sewage Sludges: Transfer to the Environment Following Disposal." In Organic Contaminants in the Environment. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-009-4329-2_4.

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Toran, Laura. "Carbon Isotope Mass Transfer as Evidence for Contaminant Dilution." In ACS Symposium Series. American Chemical Society, 1990. http://dx.doi.org/10.1021/bk-1990-0416.ch014.

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Dou, Zhi, Zhifang Zhou, Jinguo Wang, and Yong Huang. "Lattice Boltzmann Simulation of Solute Transport in Fractures." In Mass Transfer Dynamics of Contaminants in Fractured Media. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-9187-7_11.

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Dou, Zhi, Zhifang Zhou, Jinguo Wang, and Yong Huang. "Influence of Wettability on Interfacial Area for Immiscible Liquid Invasion." In Mass Transfer Dynamics of Contaminants in Fractured Media. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-9187-7_8.

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Dou, Zhi, Zhifang Zhou, Jinguo Wang, and Yong Huang. "Introduction." In Mass Transfer Dynamics of Contaminants in Fractured Media. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-9187-7_1.

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Dou, Zhi, Zhifang Zhou, Jinguo Wang, and Yong Huang. "Numerical Methods of Mass Transfer Process in Fractured Media." In Mass Transfer Dynamics of Contaminants in Fractured Media. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-9187-7_6.

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Streszczenia konferencji na temat "Contaminant transfers"

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Clark, Brandi N., J. David McColskey, Ross Rentz, and Jeffrey W. Sowards. "Preliminary Results from the NIST Supercritical Carbon Dioxide Corrosion Test Facility." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09454.

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Abstract Carbon dioxide (CO2) capture and sequestration has been hailed by some as the “critical enabling technology” needed to reconcile climate-change-driven reductions in CO2 emissions with the use of fossil fuels to meet increasing energy demands. However, transporting large quantities of CO2 would require a pipeline network the size of the existing natural gas network and a similar level of regulation. Unlike CO2 currently transported for enhanced oil recovery (EOR), anthropogenic CO2 is expected to contain corrosive contaminants associated with energy production (e.g., H2O, SOx, NOx, H2S
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Venturini, Targ, and Nicholas Duncan. "The Chemical Cleaning of Boilers in Australia." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03589.

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Abstract This paper discusses the reasons for chemically cleaning a boiler at both the pre-operation (pre-commission) stage and the post-operation (post-commission) stage. The internal surfaces of a steam boiler can be chemically cleaned to remove contaminants which effect the efficiency of heat transfer and may ultimately result in failure of the plant. Contaminants may be present inside the boiler as a result of the manufacturing and installation of the boiler, process contamination, poor quality feedwater, poor maintenance or ineffective water treatment. The most common type of pre-operatio
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Wilds, Neil. "Peelable Coating to Protect New Construction Coating Systems." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06034.

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Abstract Peelable coatings are widely used in the automotive refinish market to protect millions of cars during both manufacture (from overspray) and transit (from acid rain, bird droppings and rail dirt). This paper details the transfer of peelable coating technology to a more heavy duty end-use such as the offshore new construction industry, and notes its performance against other potential forms of damage such as: Oil contamination‘Fly rust’Mechanical damageAirborne debris and contaminants
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Ashar, Khoirun Nisa, Venty Suryanti, Abbilah Ero Mahdhani, Vicky Ahava Ferdinansyah, and Alifiananda Rahmatul Dafa Kesuma. "Utilization of <i>Escherichia coli</i> and Lapindo Mud on Microbial Fuel Cells (MFCs) System." In 8th International Conference on Advanced Material for Better Future. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-ozje64.

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This research investigates the utilization of Escherichia coli and Lapindo mud in a two-chamber Microbial Fuel Cells (MFCs) series. MFCs are tools that convert chemical energy into electrical energy with the help of catalytic reactions from microorganisms. This research uses a dual chamber reactor connected by a salt bridge, with graphite electrodes placed in each chamber and connected by copper cables. Lapindo mud contains heavy metals, such as Cu and Pb. In small amounts, heavy metals required for maintaining various biochemical and physiological functions in living organisms, but in greater
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Kasai, Paul H., and Vedantham Raman. "Hydrocarbon Transfer in Disk Drives." In ASME 2014 Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/isps2014-6903.

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In hard disk drives, oils used in the spindle motor or the actuator assembly are likely to be potential sources of hydrocarbon contaminants. Transfer to, and accumulation of such contaminants on the head would adversely affect its flyability. It was reported earlier that such transfer occurs more readily, the lower the vapor pressure of the contaminant is, and the lower the temperature of the ambiance is. The present study confirmed these findings. It is shown that the transfer is mediated by the disk surface area of high surface energy (openings of the carbon overcoat). Via an airflow transpo
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Musser, Amy, Wladyslaw Kowalski, and William Bahnfleth. "Stack and Mechanical System Effects on Dispersion of Biological Agents in a Tall Building." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33862.

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Multizone network airflow analysis is used to analyze stack and mechanical system effects on the distribution of three representative biological agents in a prototype 40 story building. This approach relies on mass balances to compute airflow and contaminant transfer between the building zones. The analysis considers stack effects caused by cold outdoor temperatures, unintended positive and negative pressurization of the floor on which the release of the agent occurs, and three levels of contaminant removal using a combination filter/UVGI system. The results show that vertical shafts, such as
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Butler, Emily C., Francesco P. Conto, Merlin A. Etzold, Stuart B. Dalziel, Joel Daou, and Julien R. Landel. "DECONTAMINATION-INDUCED CONTAMINANT REDISTRIBUTION IN POROUS MEDIA." In International Heat Transfer Conference 17. Begellhouse, 2023. http://dx.doi.org/10.1615/ihtc17.370-70.

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Karaismail, Ertan, Ismail Celik, Steven E. Guffey, and William H. Dodrill. "Numerical and Experimental Investigations on Hood Capture and Protection Efficiencies." In ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/fedsm2008-55277.

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Effective hoods are critical for the protection of workers from airborne contaminants. The aim of this study is to determine the effects of cross-draft and presence of a worker on the effectiveness of the bench-top enclosing hoods, which, unlike laboratory fume hoods have no sash and have a constant cross-sectional area. The computational fluid dynamics (CFD) software, FLUENT, with shear-stress transport (SST) k-ω turbulence model was used to investigate the effect of orientation of the manikin and hood with respect to cross-draft on the flow and contaminant concentration field. Experiments we
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Haupt, Sue Ellen, Robert F. Kunz, L. Joel Peltier, James J. Dreyer, and Howard J. Gibeling. "Impact of Heat Transfer on Contaminant Dispersion in a Public Building." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98484.

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Computational fluid dynamics (CFD) models are effective at predicting dispersion of contaminants in or near a building. It is well known that thermal effects impact the flow around and within structures. This study assesses the importance of time of day, building materials, sky cover, etc. on the local thermal heating of a building. All these features affect the buoyancy, and thus, the resulting flow and dispersion about and inside a building. This study examines that impact through including full thermal coupling with flow calculations for an environmentally friendly building, including therm
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Wood, B., D. Hall, J. Lesho, et al. "MSX satellite - Flight measurements of contaminant films." In 7th AIAA/ASME Joint Thermophysics and Heat Transfer Conference. American Institute of Aeronautics and Astronautics, 1998. http://dx.doi.org/10.2514/6.1998-2592.

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Raporty organizacyjne na temat "Contaminant transfers"

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Napier, Bruce, Robert Fellows, and Leah Minc. Transfer Factors for Contaminant Uptake by Fruit and Nut Trees. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1149245.

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Bell, Olivia. Radionuclide bioaccumulation and transfer in aquatic food webs. Department of Aquatic Resources, Swedish University of Agricultural Sciences, 2024. https://doi.org/10.54612/a.2kv8e1l85i.

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With an increasing reliance on nuclear power as a low-carbon energy source, understanding the pathways and dynamics of planned or unplanned radionuclide releases to the environment and subsequent transfer within food webs is essential for assessing environmental risks. This essay explores the mechanisms by which radionuclides accumulate in aquatic organisms and transfer through food webs. Factors influencing bioaccumulation, including environmental parameters, radionuclide properties, and organismal characteristics, are reviewed. Additionally, this essay investigates the role of food web struc
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Korte, N. E., C. A. Muhr, and D. W. Greene. Potential soil contaminant levels of polychlorinated dibenzodioxins and dibenzofurans at industrial facilities employing heat transfer operations. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10140743.

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Korte, N. E., C. A. Muhr, and D. W. Greene. Potential soil contaminant levels of polychlorinated dibenzodioxins and dibenzofurans at industrial facilities employing heat transfer operations. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5564271.

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Wilkins, Justin, Andrew McQueen, Joshua LeMonte, and Burton Suedel. Initial survey of microplastics in bottom sediments from United States waterways. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42021.

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Given the reported extent of microplastics in the aquatic environment, environmentally relevant exposure information for sediments dredged by the US Army Corps of Engineers will lend context to the risks posed by this contaminant during dredging. We measured the occurrence, abundance, and polymer composition of microplastics in sediments collected from nine dredged waterways and two non-dredged reference areas. The number of particles in sediment samples ranged from 162 to 6110 particles/kg dry wt., with a mean of 1636 particles/kg dry wt. Fragments were the most prevalent shape observed among
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Butman, Cheryl A., and Robert A. Wheatcroft. Transfer of Contaminants between the Water Column and Bottom Sediments: The Role of Deposit-and Suspension-Feeding Benthic Invertebrates. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada360866.

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Butman, Cheryl A., and Robert A. Wheatcroft. Transfer of Contaminants Between the Water Column and Bottom Sediments: The Role of Deposit- and Suspension-feeding Benthic Invertebrates. Defense Technical Information Center, 1997. http://dx.doi.org/10.21236/ada628697.

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Kopte, Robert. OSADCP Toolbox. GEOMAR, 2024. http://dx.doi.org/10.3289/sw_2_2024.

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Vessel-mounted Acoustic Doppler Current Profilers (ADCPs) provide velocity profiles of the upper ocean along the ship track. They are a key tool in oceanographic research to study the oceanic circulation and the associated distribution of mass, heat, contaminants and other tracers. In order to obtain high-quality ocean current data from vessel-mounted ADCP measurements, a number of requirements must be met, from system installation and data acquisition measures to certain essential processing steps. Here, we collect key points on ADCP data acquisition in general and on the characteristics and
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