Готові списки джерел за темами / Particulate contaminants

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Добірка наукової літератури з теми "Particulate contaminants"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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Статті в журналах з теми "Particulate contaminants"

Montz, K. W., P. B. Butler, and J. K. Beddow. "Removal of particulate contaminants from surfaces." Journal of the Acoustical Society of America 81, S1 (1987): S51—S52. http://dx.doi.org/10.1121/1.2024279.

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Nie, Shuyu, and Yunxia Qu. "Experimental test research on the release characteristics of particulate contaminants in cigarettes." E3S Web of Conferences 356 (2022): 05056. http://dx.doi.org/10.1051/e3sconf/202235605056.

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Indoor air quality is particularly important not only in schools, hospitals, nursing homes and other environments that accommodate sensitive people, but also in production places with high cleanliness requirements. At present, most researches are aimed at testing the mass concentration of contaminants and there are few characterizations of the release characteristics(that is, the release rate) of contaminants. Air pollutants are generally include particulate contaminants and gaseous contaminants. This paper takes cigarettes as typical representatives of particulate contaminants and takes the s

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Champ, D. R., and J. Schroeter. "Bacterial Transport in Fractured Rock – A Field-Scale Tracer Test at the Chalk River Nuclear Laboratories." Water Science and Technology 20, no. 11-12 (1988): 81–87. http://dx.doi.org/10.2166/wst.1988.0269.

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The potential for transport of bacteria by groundwater in fractured crystalline rock was assessed in a series of field-scale tracer tests. The breakthrough curves for injected Escherichla coll and “non-reactive” particle tracers were compared with those for conservative inorganic and radioactive tracers. Rapid transport, relative to the conservative tracers, of both bacteria and non-reactive particles was observed. The first appearance of both was with, or slightly before, the conservative tracers for water movement. Removal of the bacteria and particles by filtration processes occurred and wa

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Watanabe, Y., Y. Kanemoto, K. Takeda, and H. Ohno. "Removal of Soluble and Particulate Organic Material in Municipal Wastewater by a Chemical Flocculation and Biohlm Processes." Water Science and Technology 27, no. 11 (1993): 201–9. http://dx.doi.org/10.2166/wst.1993.0278.

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Since the major part of the contaminants in municipal wastewater is associated with particles, direct particle separation is an effective way of lowering the wastewater contaminant level. An additional biological oxidation is usually required to remove the residual soluble contaminants. This paper presents the experimental data on the chemical treatment of municipal wastewater by the Jet Mixed Separator(JMS) which can be used as a unit process for physico-chemical treatment. As simultaneous flocculation and sedimentation occurred, the JMS effluent concentration of phosphorus and suspended soli

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Kociszewska, Karolina, Grzegorz Majewski, Barbara Mathews, Walter Mucha, Patrycja Rogula-Kopiec, and Wioletta Rogula-Kozłowska. "Badania nad występowaniem węgla w powietrzu wewnętrznym wybranych uczelni w Polsce." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 26, no. 1 (2017): 108–24. http://dx.doi.org/10.22630/pniks.2017.26.1.10.

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The research presented herein aimed at recognition of submicrone particulate matter concentration as well as organic (OC) and elemental (EC) carbon bound to it in a lecture room and students’ laboratory. The 24-h variability of PM1, OC and EC concentration in both rooms were also discussed along with I : O ratio. In the analysed period – the turn of spring and summer – independent of the location (Gliwice – students’ laboratory, Warsaw – lecture room) the indoor concentration of elemental carbon EC was conditioned by the intensity of those contaminants migration along with atmospheric air. Bec

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Backhouse, C. M., P. R. Ball, Sharon Booth, Margaret A. Kelshaw, S. R. Potter, and C. N. Mccollum. "Particulate contaminants of intravenous medications and infusions." Journal of Pharmacy and Pharmacology 39, no. 4 (1987): 241–45. http://dx.doi.org/10.1111/j.2042-7158.1987.tb06260.x.

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Hwang, Byung-Gi, Kwan-Soo Jun, Young-Dae Lee, and Wu-Seng Lung. "Importance of DOC in sediments for contaminant transport modelling." Water Science and Technology 38, no. 11 (1998): 193–99. http://dx.doi.org/10.2166/wst.1998.0467.

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Contaminants in the interstitial waters are not only dissolved but also associated with a filterable colloidal phase such as DOC. The DOC plays an important role regulating the distribution of chemicals between particulate and dissolved phases since it binds chemicals and makes them unavailable for vertical diffusive exchange. A three-phase partitioning model that consists of free-dissolved, DOC-bound, particulate-bound components of the chemicals involved is used for the contaminant transport model in order to include the effect of DOC on the partition coefficient. The contaminant model is li

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S, Gowri, Judith Justin, and Vanithamani R. "AUTOMATED NANO-TECHNOLOGY BASED PARTICULATE FILTERS TO MAINTAIN CLEAN ENVIRONMENT IN ROOMS OF BIOMEDICAL APPLICATIONS." ICTACT Journal on Microelectronics 7, no. 3 (2021): 1189–92. https://doi.org/10.21917/ijme.2021.0204.

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The products or the process of production are susceptible to contamination in the environment. In this regard, the manufacturing of semiconductors and their related applications play a significant role. The airborne concentration of particulates like chemical vapors or dust compounds can be found even in an enclosed environment. This accounts for pollution in cleanrooms for biomedical applications. The rooms should be monitored and protected from harmful substances and contamination risks. In this work, the room is cleaned with nano-particulate filters to eliminate the dust entering the room.

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Monsé, Christian, Jürgen Bünger, Thomas Brüning, and Rolf Merget. "Generation and characterization of airborne ethyl 2-cyanoacrylate atmospheres in a human whole-body exposure unit." Anal. Methods 6, no. 9 (2014): 3124–32. http://dx.doi.org/10.1039/c3ay42131g.

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Diamond, Jerome. "Particulate Matter and Aquatic Contaminants. Salem S. Rao." Journal of the North American Benthological Society 13, no. 2 (1994): 327–28. http://dx.doi.org/10.2307/1467252.

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Дисертації з теми "Particulate contaminants"

Su, Jia S. M. Massachusetts Institute of Technology. "Biological and particulate contaminants in interfaces." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120444.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2018. Cataloged from PDF version of thesis. Includes bibliographical references (pages 63-70). The transport of biological, chemical, or particulate contaminants shapes disease transmission, chemical spills, climate, ecology, and bio-hazard risks. Yet, little is understood on the mechanisms controlling droplet formation and selection of droplet sizes and contamination levels from a contaminated water bulk. Bubbles play a critical role in shaping this transfer of chemicals, particula

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Backhouse, Christopher Morley. "Systematic effects of particulate contaminants of intravenous therapy." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47344.

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Xu, Daxue. "Analyses of Particulate Contaminants in Semiconductor Processing Fluids." Thesis, University of North Texas, 1998. https://digital.library.unt.edu/ark:/67531/metadc500968/.

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Particle contamination control is a critical issue for the semiconductor industry. In the near future, this industry will be concerned with the chemical identities of contaminant particles as small as 0.01 pm in size. Therefore, analytical techniques with both high chemical sensitivity and spatial resolution are required. Transmission electron microscopy (TEM) provides excellent spatial resolution and yields structural and compositional information. It is rarely used, however, due to the difficulty of sample preparation. The goals of this research are to promote the use of TEM as an ultrafine

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Spyak, Paul Raymond. "A cryogenic scatterometer and scatter from particulate contaminants on mirrors." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/185209.

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The scattered light from particulate-contaminated mirrors was measured at visible and far-infrared wavelengths, and results were compared to that predicted by a theoretical model. In addition, a λ = 10.6 μm cryogenic scatterometer was constructed, and the temperature dependence of the scattered radiation was determined. The design and calibration of a λ = 10.6μm cryogenic scatterometer is presented. The BRDF is experimentally observed to have no measurable temperature dependence for the mirrors tested. Scatter data from oil-contaminated mirrors demonstrates some unexpected temperature dependen

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Billah, Md Baki. "Chemical and toxicological characterization of chemical contaminants in air pollution particulate matter." HKBU Institutional Repository, 2015. https://repository.hkbu.edu.hk/etd_oa/155.

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In wintertime hazy episodes, the air pollution in northern China has always reached to an alarming level. In the winter of 2012-13, the trans-boundary air pollution from China has attracted national and global attention. An elevated public awareness to the unprecedented pollution levels has prompted much investigation on the health effects of fine particulate matter (PM), in particular PM2.5. Since PM-elicited harmful effects primarily depends on the composition of chemical contaminants adsorbed, in this study we characterized the chemical compositions of PM2.5 and determined its associated

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Hallberg, Magnus. "Treatment conditions for the removal of contaminants from road runoff." Doctoral thesis, Stockholm : [Byggvetenskap, Kungliga Tekniska högskolan], 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4386.

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Kappanna, Hemanth K. "Reduction of toxic air contaminants (TACs) and particulate matter emissions from heavy-duty natural gas engines." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4553.

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Thesis (M.S.)--West Virginia University, 2006. Title from document title page. Document formatted into pages; contains xiii, 182 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 135-142).

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Le, Meur Mathieu. "Matières en suspension de la Moselle (Lorraine, France) : caractérisation minérale et organique et réactivité vis-à-vis des contaminants métalliques." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0161/document.

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Les matières en suspension (MES) sont constituées de colloïdes et particules et sont couramment décrites comme des agrégats hétérogènes formées de phases minérales, organiques et biologiques et possédant une forte réactivité de surface. Cette étude vise à étudier l’évolution de composition spatiale et temporelle des MES de la rivière Moselle (Lorraine, France) et également d’étudier la réactivité des MES vis-à-vis de contaminants métalliques. Les MES ont été collectées à différentes stations le long de la rivière Moselle et selon différents régimes hydriques. Des études microscopiques et macro

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Rivas, Lara Ioar. "Air quality in schools and children’s exposure to particulate pollution in Barcelona." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/317968.

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L’exposició als contaminants atmosfèrics s’ha relacionat amb efectes negatius a la salut i els infants constitueixen un subgrup de la població particularment vulnerable. Es determinà la qualitat de l’aire a l’interior i exterior de 39 escoles de Barcelona i Sant Cugat del Vallès. El mateixos contaminants mesurats a les escoles també es monitoritzaren a una estació de fons urbà a Barcelona (UB-PR). Les concentracions de carboni negre equivalent (EBC), NO2 i partícules ultrafines (UFP) mostraren un gradient ascendent cap al centre de la ciutat, seguint el patró de densitat de trànsit rodat. E

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Kozii, Ivan, and Іван Козій. "Using a highly efficient gas cleaning equipment for reduction technogenic impact on the environment." Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/50966.

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1. Matus K.J., Nam K.-M., Selin N.E., Lamsal L.N., Reilly J.M. Health Damages from Air Pollution in China. Global Environmental Chang, 2012, vol. 22, no. 2, pp. 55-66. 2. Tronvil P. Developing standards: Global standards for air cleaning equipment. Filtration & Separation, 2008, vol. 45, no. 9, pp. 28-31. 3. Hession M. Incinerator and gas cleaning equipment overview. Health Estate J., 1997, vol.51, no. 8, pp. 6-7. Growth in the scale of economic activity leads to increased human impacts and disturbance of equilibrium in the environment. Along with the depletion of natural resources increa

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Книги з теми "Particulate contaminants"

1934-, Rao S. S., ed. Particulate matter and aquatic contaminants. Lewis Publishers, 1993.

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Ho, Monica. Microgel and other particulate contaminants in recycled polyethylene. National Library of Canada, 1993.

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H, Vincent James, ed. Particle size-selective sampling of particulate air contaminants. American Conference of Governmental Industrial Hygienists (ACGIH), 1999.

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Directorate, Canada Dept of the Environment Indland Waters. Role of Particulate Matter in the Fate of Contaminants in Aquatic Ecosystems. s.n, 1986.

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Canada. Environment Canada. Inland Waters Directorate. The role of particulate matter in the fate of contaminants in aquatic ecosystems. Environment Canada.Inland Waters Directorate, 1986.

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Norton, Dale E. Contaminants associated with settling particulate matter and bottom sediments at two marinas in Thea Foss waterway. Washington State Dept. of Ecology, Environmental Assessment Program, 2001.

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Center, Goddard Space Flight, ed. Particulate contaminant relocation during shuttle ascent. National Aeronautics and Space Administration, Goddard Space Flight Center, 1986.

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Center, Turner-Fairbank Highway Research, ed. Highway operation impacts on fine particulate air contaminant concentrations. U.S. Dept. of Transportation, Federal Highway Administration, Research and Development, Turner-Fairbank Highway Research Center, 1999.

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Escobar Malaver, Pedro Miguel, and Rubén Dario Londoño Pérez. Manual práctico de ensayos de toxicidad en medio acuático con organismos del género Daphnia. Universidad de La Salle. Ediciones Unisalle, 2009. http://dx.doi.org/10.19052/9789588939544.

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Los ensayos de toxicidad son pruebas diseñadas para evaluar la potencia relativa de un agente o una sustancia contaminante sobre una o más especies de organismos de los sistemas biológicos acuáticos y terrestres, al tiempo que permiten caracterizar la relación concentración-respuesta entre el agente contaminante y el organismo sometido a prueba. La toxicidad de una sustancia es la propiedad que tiene de causar daños a la salud humana o la muerte de un organismo vivo, mediante la comparación de efecto del agente con el de una solución patrón o estándar. Los resultados de las pruebas de toxicida

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Частини книг з теми "Particulate contaminants"

Kawahara, Hiroyuki. "Wet Cleaning (Part 1): Removal of Particulate Contaminants." In Ultraclean Surface Processing of Silicon Wafers. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-03535-1_33.

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Walker, Tony R. "The Use of Snow, Soil and Lichens as Biomonitors of Contaminants in Airborne Particulate Matter in North-Eastern European Russia." In Urban Airborne Particulate Matter. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12278-1_23.

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Kohli, Rajiv. "Application of Strippable Coatings for Removal of Particulate Contaminants." In Particle Adhesion and Removal. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781118831571.ch11.

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James, John T., and Martin E. Coleman. "Toxicology of Airborne Gaseous and Particulate Contaminants in Space Habitats." In Space Biology and Medicine – Volume II, Life Support and Habitability. American Institute of Aeronautics and Astronautics, Inc., 1994. http://dx.doi.org/10.2514/5.9781624104664.0037.0060.

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Hu, Xiaoqi, Jingran Su, Jingyi Li, et al. "Advances in the Toxicological Studies of Atmospheric Particulate Matter." In Advances in Toxicology and Risk Assessment of Nanomaterials and Emerging Contaminants. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9116-4_10.

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Charlesworth, Susanne, C. Booty, and J. Beasant. "Monitoring the atmospheric deposition of particulate-associated urban contaminants, Coventry, UK." In Alliance For Global Sustainability Bookseries. Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6010-6_15.

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Bourg, A. C. M. "Adsorption of Trace Inorganic and Organic Contaminants by Solid Particulate Matter." In Aquatic Ecotoxicology. CRC Press, 2018. http://dx.doi.org/10.1201/9781351069854-7.

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Lebowitz, Michael D. "Pulmonary Responses to Multipollutant Airborne Particulate Matter and Other Contaminants, with Prevention Strategies." In Prevention of Respiratory Diseases. CRC Press, 2024. http://dx.doi.org/10.1201/9781003573869-13.

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Eadie, Brian J., and John A. Robbins. "The Role of Particulate Matter in the Movement of Contaminants in the Great Lakes." In Sources and Fates of Aquatic Pollutants. American Chemical Society, 1987. http://dx.doi.org/10.1021/ba-1987-0216.ch011.

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Skrzypek, G. "Principles of Mixing and Fractionation Models." In Tracing the Sources and Fate of Contaminants in Agroecosystems. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-47265-7_3.

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AbstractUpfront consideration of possible mixing scenarios is required to achieve an optimal sampling design and deliver a successful project. This will also help increase efficiency by reducing the number of samples, workload and cost without compromising the final outcomes. Chapter 2 summarised key information about a conceptual framework for devising a sampling design for tracing non-particulate agricultural pollutants in surface and groundwaters on a catchment scale. This chapter provides a short introduction to mixing models applicable to tracers for water pollution studies.

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Тези доповідей конференцій з теми "Particulate contaminants"

Morland, Bjørn Helge, Gaute Svenningsen, and Johannes Sonke. "Impurity Reactions in Gaseous and Liquid CO2 Streams." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-20788.

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Abstract Safe transportation of CO2 for carbon capture and storage requires strict control of contaminants in the captured CO2, so that corrosion and particulate matter problems are avoided. The present work tested two almost similar CO2 specifications for chemical reactions and liquid or solid drop-out. The tests were carried out with CO2 in liquid and gaseous state, at field-relevant pressure and temperatures. It was shown that the NO2 content had a strong effect on chemical reactions and tendency to drop-out, but the threshold was different depending on the physical state of the CO2. Presen

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Robinson, James O. "Contamination of High Purity Boiler Feedwater in the Pulp and Paper Industry: Sources, Potential Problems, and Recommended Actions." In CORROSION 2001. NACE International, 2001. https://doi.org/10.5006/c2001-01419.

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Abstract Pulp and paper mill boiler feedwater needs to be of high purity to maintain safe, reliable boiler operation. When feedwater contamination occurs, it may cause either high or low boiler water pH excursions, steam contamination, or insulating deposits. Common boiler feedwater contaminants are silica, black liquor, hardness, and iron. For each of these contaminants, this paper discusses sources of contamination, potential problems caused by each particular contaminant, and recommended actions to be taken when contamination occurs.

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Tomlin, John L., Horace E. Durham, and James Carr. "The Use of an Organic Dispersant as Primary Treatment in a Textile Air Washer and Cooling Water System a Case History." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86021.

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Abstract In the textile industry, temperature and humidity are critical to production and air washers are utilized to control both. Besides regulating temperature and humidity, air washers "wash" the air free of particulate matter. This continuous "washing" introduces a heavy loading of contaminants on these systems and makes deposit control the primary treatment concern. Clinton Mills, Geneva, Alabama, is a textile manufacturing plant where, historically, the air washers required a lot of attention. Deposits were heavy, mainly oil and microbiological matter, and resulted in continuous pluggin

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Lipfert, Frederick W. "Effects of Acidic Deposition on Atmospheric Deterioration of Materials." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86105.

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Abstract Most common construction materials deteriorate in the outdoor atmosphere, due to the combined actions of "natural" weathering and atmospheric contaminants. Recently, interest in materials damage and corrosion has included the effects of acidic precipitation, in addition to the effects of gaseous and particulate air pollution. Assessing the relative importance of these usually additive effects requires damage functions, relating loss of a given material to specific agents in the atmosphere. Such damage functions have been estimated for zinc (galvanized steel), copper, aluminum, carbon

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Lack, Joel, and Bradley Harrell. "Reducing Salt Corrosion Rates with Stronger Base Amines." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02037.

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Abstract When processing discounted crude oils, one of the primary challenges refiners face is under-salt corrosion in crude unit distillation overhead systems. The combination of higher overhead chloride levels and the presence of amine contaminants in discounted crudes can greatly increase the risk of salt formation. For those overhead systems where amine salt corrosion cannot be mitigated by conventional methods, the application of non-traditional neutralizing amines can provide benefit. In particular, under-salt corrosion rates produced by stronger base amines are significantly less than t

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Schamber, Frederick H., and Cornelis G. van Beek. "Understanding Particulate Contaminants via Automated Electron Beam Analysis." In SAE 2004 World Congress & Exhibition. SAE International, 2004. http://dx.doi.org/10.4271/2004-01-1337.

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Rantanen, Raymond, and Tim Gordon. "On-orbit transport of molecular and particulate contaminants." In SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, edited by A. Peter M. Glassford, Robert P. Breault, and Stephen M. Pompea. SPIE, 1996. http://dx.doi.org/10.1117/12.258302.

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Saini, Satyam, Kaustubh K. Adsul, Pardeep Shahi, Amirreza Niazmand, Pratik Bansode, and Dereje Agonafer. "CFD Modeling of the Distribution of Airborne Particulate Contaminants Inside Data Center Hardware." In ASME 2020 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipack2020-2590.

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Abstract Modern-day data center administrators are finding it increasingly difficult to lower the costs incurred in mechanical cooling of their IT equipment. This is especially true for high-performance computing facilities like Artificial Intelligence, Bitcoin Mining, and Deep Learning, etc. Airside Economization or free air cooling has been out there as a technology for a long time now to reduce the mechanical cooling costs. In free air cooling, under favorable ambient conditions of temperature and humidity, outside air can be used for cooling the IT equipment. In doing so, the IT equipment

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Woodmansee, D. E., A. K. Tolpadi, T. H. Hwang, and A. D. Maddaus. "Ensuring Adequate Coolant Purity for Advanced Gas Turbines." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-281.

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The role of particulate contaminants in advanced gas turbine coolants is discussed, especially in light of the extremely high G-field regions they will experience in service. Predictions of sedimentation in both laminar and highly turbulent accelerating flows using a computational fluid dynamics code are made for a range of particulate sizes to show that particles over 0.5 µm are of concern. Possible techniques for limiting access of these particulates to the gas turbines themselves are presented. Overall, contaminant deposition appears controllable, limiting required cleaning of coolant chann

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BARENGOLTZ, JACK. "Molecular and particulate contaminants - A contamination data base within ENVIRONET." In 26th Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics, 1988. http://dx.doi.org/10.2514/6.1988-14.

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Звіти організацій з теми "Particulate contaminants"

Duan, Mengjie, Li Liu, Guillaume Da, and Evelyne Géhin. ASSESSING THE RELATIVE IMPORTANCE OF MUCOSAL EXPOSURE AND INHALATION EXPOSURE TO AIRBORNE PARTICLES. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau541653952.

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Particles deposited on mucosa or penetrating into lower airway are two exposure routes. Quantifying administered dose of these two routes gives us idea for future advanced individual protection. Here, we report an in-vitro method to assess the administered doses of eyes, lips, and lower airway. A CT scanning and 3D-printing based human replica is developed, and exposed in front of the 0.6-5μm monodispersed fluorescent particles. At small size particles (<2.5 μm), the administered dose intensity of penetrating into lower airway inhalation (~59.41×10-2 g/g, 0.6μm) is higher than that of eyes

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Langer, G. Ventilating-air change rate versus particulate contaminant spread. Edited by C. A. Deitesfeld. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/5381349.

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Sosa, Martín, Lynn Scholl, Juan Manuel Leaño, Michael Fleischmann, Cristian Navas, and Juan Pablo Benitez. El potencial del remote sensing y las políticas de reducción de emisiones como catalizadores de la renovación de la flota de transporte en Asunción, Paraguay. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003304.

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El sector de transporte genera contribuciones significativas de emisiones locales y globales de gases de efecto invernadero y también de material particulado. Los servicios de transporte masivo en buses presentan altas tasas de emisiones dado el tipo de combustible del cual dependen y, en el caso de América Latina y el Caribe (ALC) estas externalidades son aún más severas dados los rezagos de regulación del sector, la informalidad y la edad promedio muy alta de la flota vehicular. Este documento presenta a la utilización de la tecnología remote sensing como una herramienta para reducción de la

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Barker, Amanda, Jay Clausen, Thomas Douglas, Anthony Bednar, Christopher Griggs, and William Martin. Environmental impact of metals resulting from military training activities : a review. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43348.

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The deposition of metals into the environment as a result of military training activities remains a longterm concern for Defense organizations across the globe. Of particular concern for deposition and potential mobilization are antimony (Sb), arsenic (As), copper (Cu), lead (Pb), and tungsten (W), which are the focus of this review article. The fate, transport, and mobilization of these metals are complicated and depend on a variety of environmental factors that are often convoluted, heterogeneous, and site dependent. While there have been many studies investigating contaminant mobilization o

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Castaño Muñoz, Jhon Never. Probióticos en la alimentación porcina, los potenciales beneficios y aplicaciones en la porcicultura colombiana. Universidad Nacional Abierta y a Distancia, 2023. http://dx.doi.org/10.22490/ecbti.6905.

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Los probióticos son utilizados en la alimentación por sus beneficios en el mejoramiento de la flora intestinal y en la asimilación de nutrientes. En el caso de la alimentación animal se han realizado estudios que evidencian beneficios potenciales en los distintos tipos de ganadería mediante la inclusión o aplicación de probióticos en la alimentación. El presente estudio tiene como objetivo analizar las aplicaciones de probióticos en la alimentación porcina y los potenciales beneficios que esto conllevaría en el contexto nacional. Se observa la necesidad de un documento que analice de manera si

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L51655 Improved Intake Air Filtration Systems. Pipeline Research Council International, Inc. (PRCI), 1991. http://dx.doi.org/10.55274/r0010343.

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The quality of inlet air consumed by pipeline gas turbines plays a significant role in the performance, maintenance, and economy of turbine operations. The airborne contaminants may cause degradation of compressor blades and hot gas path components, primarily by erosion, corrosion, and fouling. For gas turbine service, air contamination is characterized by dust loading of the air (mass of dust per unit volume), chemical composition of the particulate matter, and particle size distribution. To ensure properly conditioned clean air for reliable performance under difficult conditions, the particu

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