Bibliografías temáticas / Anthropogenic particle

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Literatura académica sobre el tema "Anthropogenic particle"

Autor: Grafiati
Publicado: 1 de junio de 2024
Última modificación: 31 de julio de 2025

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Artículos de revistas sobre el tema "Anthropogenic particle"

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Paasonen, Pauli, Kaarle Kupiainen, Zbigniew Klimont, Antoon Visschedijk, Hugo A. C. Denier van der Gon, and Markus Amann. "Continental anthropogenic primary particle number emissions." Atmospheric Chemistry and Physics 16, no. 11 (2016): 6823–40. http://dx.doi.org/10.5194/acp-16-6823-2016.

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Abstract. Atmospheric aerosol particle number concentrations impact our climate and health in ways different from those of aerosol mass concentrations. However, the global, current and future anthropogenic particle number emissions and their size distributions are so far poorly known. In this article, we present the implementation of particle number emission factors and the related size distributions in the GAINS (Greenhouse Gas–Air Pollution Interactions and Synergies) model. This implementation allows for global estimates of particle number emissions under different future scenarios, consist
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Russell, Philip A. "The Analyses of Anthropogenic Atmospheric Particulates by EM." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 2 (1990): 547. http://dx.doi.org/10.1017/s0424820100136349.

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This presentation will summarize fourteen years of research on the physical and chemical nature of particulates suspended in the earths atmosphere utilizing scanning electron microscopy and, to a lesser extent, transmission electron microscopy. Topics to be discussed include (1) the rationale for using electron microscopy to study airborne particulates, (2) methods for collecting airborne particulates, (3) methods of analysis and (4) a summary of results. Examples will demonstrate how conclusions about the nature and source of collected particles can differ between bulk sample analyses and dis
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Pawlak, Filip, Krystyna Koziol, Wanda Wilczyńska-Michalik, et al. "Characteristics of Anthropogenic Pollution in the Atmospheric Air of South-Western Svalbard (Hornsund, Spring 2019)." Water 16, no. 11 (2024): 1486. http://dx.doi.org/10.3390/w16111486.

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The character of atmospheric pollution and its impact on surface waters may vary substantially in space, and hence, we add a potentially important location for the studies of atmospheric air pollution to the map of the High Arctic. We have investigated the anthropogenic particle characteristics and selected persistent organic pollutant concentrations, in a priorly unmonitored location in the Arctic (Svalbard), exposed to a climatic gradient. Single-particle analysis of PM indicates that besides the prevailing natural aerosol particles, anthropogenic ones were present. The likely anthropogenic
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Bjedov, Dora, Alma Mikuška, Vlatka Gvozdić, Petar Glavaš, Dora Gradečak, and Mirta Sudarić Bogojević. "White Stork Pellets: Non-Invasive Solution to Monitor Anthropogenic Particle Pollution." Toxics 12, no. 4 (2024): 236. http://dx.doi.org/10.3390/toxics12040236.

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The present study applied a non-invasive method to analyse anthropogenic particles and prey items in white stork (Ciconia ciconia) pellets. Pellets (n = 20) were obtained from white stork nests during the 2020 breeding season from two sites in Croatia. In total, 7869 anthropogenic particles were isolated. The majority of particles were fragments, while previous studies on other birds often reported fibres. An ATR–FTIR polymer analysis detected glass and construction and building materials, as well as several compounds associated with plastic masses. Polymer investigation revealed the presence
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Ahlm, L., R. Krejci, E. D. Nilsson, E. M. Mårtensson, M. Vogt, and P. Artaxo. "Emission and dry deposition of accumulation mode particles in the Amazon Basin." Atmospheric Chemistry and Physics 10, no. 21 (2010): 10237–53. http://dx.doi.org/10.5194/acp-10-10237-2010.

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Abstract. Size-resolved vertical aerosol number fluxes of particles in the diameter range 0.25–2.5 μm were measured with the eddy covariance method from a 53 m high tower over the Amazon rain forest, 60 km NNW of Manaus, Brazil. This study focuses on data measured during the relatively clean wet season, but a shorter measurement period from the more polluted dry season is used as a comparison. Size-resolved net particle fluxes of the five lowest size bins, representing 0.25–0.45 μm in diameter, were in general dominated by deposition in more or less all wind sectors in the wet season. This is
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Xausa, Filippo, Pauli Paasonen, Risto Makkonen, et al. "Advancing global aerosol simulations with size-segregated anthropogenic particle number emissions." Atmospheric Chemistry and Physics 18, no. 13 (2018): 10039–54. http://dx.doi.org/10.5194/acp-18-10039-2018.

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Abstract. Climate models are important tools that are used for generating climate change projections, in which aerosol–climate interactions are one of the main sources of uncertainties. In order to quantify aerosol–radiation and aerosol–cloud interactions, detailed input of anthropogenic aerosol number emissions is necessary. However, the anthropogenic aerosol number emissions are usually converted from the corresponding mass emissions in pre-compiled emission inventories through a very simplistic method depending uniquely on chemical composition, particle size and density, which are defined f
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Spracklen, D. V., K. J. Pringle, K. S. Carslaw, G. W. Mann, P. Manktelow, and J. Heintzenberg. "First comparison of a global microphysical aerosol model with size-resolved observational aerosol statistics." Atmospheric Chemistry and Physics Discussions 6, no. 5 (2006): 8871–915. http://dx.doi.org/10.5194/acpd-6-8871-2006.

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Abstract. A statistical synthesis of marine aerosol measurements from experiments in four different oceans is used to evaluate a global aerosol microphysics model (GLOMAP). We compare the model against observed size resolved particle concentrations, probability distributions, and the temporal persistence of different size particles. We attempt to explain the observed size distributions in terms of sulfate and sea spray and quantify the possible contributions of anthropogenic sulfate and carbonaceous material to the number and mass distribution. The model predicts a bimodal size distribution th
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Schmidt, Susan, Johannes Schneider, Thomas Klimach, et al. "Online single particle analysis of ice particle residuals from mountain-top mixed-phase clouds using laboratory derived particle type assignment." Atmospheric Chemistry and Physics 17, no. 1 (2017): 575–94. http://dx.doi.org/10.5194/acp-17-575-2017.

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Abstract. In situ single particle analysis of ice particle residuals (IPRs) and out-of-cloud aerosol particles was conducted by means of laser ablation mass spectrometry during the intensive INUIT-JFJ/CLACE campaign at the high alpine research station Jungfraujoch (3580 m a.s.l.) in January–February 2013. During the 4-week campaign more than 70 000 out-of-cloud aerosol particles and 595 IPRs were analyzed covering a particle size diameter range from 100 nm to 3 µm. The IPRs were sampled during 273 h while the station was covered by mixed-phase clouds at ambient temperatures between −27 and −6
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Wu, Z. J., Y. F. Cheng, M. Hu, B. Wehner, N. Sugimoto, and A. Wiedensohler. "Dust events in Beijing, China (2004–2006): comparison of ground-based measurements with columnar integrated observations." Atmospheric Chemistry and Physics Discussions 9, no. 3 (2009): 11843–88. http://dx.doi.org/10.5194/acpd-9-11843-2009.

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Abstract. Three-year particle number size distributions were analyzed to characterize the size distributions and optical properties of the particles in the urban atmosphere of Beijing, China during dust events in the springs of 2004–2006 in combination with AERONET sun/sky radiometer data. The dust events were categorized as two different types (type 1 and 2). This categorization of the dust events was confirmed by the aerosol index images, columnar aerosol optical properties, and vertical potential temperature profiles. Dust particles dominated the total particle volume concentration (3–10000
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Ahlm, L., R. Krejci, E. D. Nilsson, E. M. Mårtensson, M. Vogt, and P. Artaxo. "Emission and deposition of accumulation and coarse mode particles in the Amazon basin." Atmospheric Chemistry and Physics Discussions 10, no. 6 (2010): 14013–52. http://dx.doi.org/10.5194/acpd-10-14013-2010.

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Abstract. Size-resolved vertical aerosol number fluxes of particles in the diameter range 0.25–2.5 μm were measured with the eddy covariance method from a 53 m high tower over the Amazon rain forest, 60 km NNW of Manaus, Brazil. This study focuses on data measured during the relatively clean wet season, but a shorter measurement period from the more polluted dry season is used as a comparison. Size-resolved net particle fluxes of the five lowest size bins, representing 0.25–0.45 μm in diameter, pointed downward in more or less all wind sectors in the wet season. This is an indication that the
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Tesis sobre el tema "Anthropogenic particle"

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Schoone, Marion. "Effect of organic matter on sorption of polycyclic aromatic hydrocarbons interaction with natural soils, soils containing anthropogenic organic matter, anthropogenic organic materials and particle size fractions from soils /." [S.l. : s.n.], 1999. http://deposit.ddb.de/cgi-bin/dokserv?idn=96193400X.

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Amos, Helen Marie. "Toward an improved understanding of the global biogeochemical cycle of mercury." Thesis, Harvard University, 2014. http://dissertations.umi.com/gsas.harvard:11493.

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Mercury (Hg) is a potent neurotoxin, has both natural and anthropogenic sources to the environment, and is globally dispersed. Humans have been using Hg since antiquity and continue its use in large quantities, mobilizing Hg from stable long-lived geologic reservoirs to actively cycling surface terrestrial and aquatic ecosystems. Human activities, such as mining and coal combustion, have perturbed the natural biogeochemical cycle of Hg. However, the distribution of natural versus anthropogenic Hg in the environment today and the extent of anthropogenic perturbation (i.e., enrichment) are uncer
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Horchler, Eva Johanna. "Secondary organic aerosol formation in a smog chamber using ambient urban air as a matrix component." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/235930/1/Eva%2BJohanna%2BHorchler%2BThesis%282%29.pdf.

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In urban environments, a significant portion of atmospheric aerosols are of organic composition with the secondary organic aerosol (SOA) fraction being one of the most important but least understood. This work examines SOA production in a smog chamber using a-pinene and isoprene as biogenic precursors and particle-free ambient urban air as anthropogenic emissions. The observations revealed that the SOA formation is controlled by the components present in the matrix and a-pinene or isoprene affect the reaction processes in such a way that the SOA concentration is either increased or decreased.
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Lefebvre, Charlotte. "Distribution spatiale et temporelle des microplastiques et particules anthropiques au sein d'une lagune côtière mésotidale, le Bassin d'Arcachon. Approche multi-compartiments." Electronic Thesis or Diss., Bordeaux, 2022. http://www.theses.fr/2022BORD0230.

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Le plastique est un matériel peu cher, léger et résistant, ce qui l’a rendu rapidement indispensable dans tous types de secteurs tel que celui de l’emballage alimentaire, du médicale ou encore de l’automobile et du bâtiment. Néanmoins, ces extraordinaires propriétés ont aussi contribué à son actuelle omniprésence dans l’environnement marin, de manière parfois insidieuse. En effet, une fraction souvent invisible à l’œil nu, nommée microplastique (MP) est aujourd’hui étudiée avec intérêt. Les MP sont principalement définis par une taille inférieure à 5 mm, bien que la limite inférieure soit enco
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Peña, Sanchez Carlos Alberto. "Quantification of Anthropogenic and Natural Sources of Fine Particles in Houston, Texas Using Positive Matrix Factorization." Thesis, University of North Texas, 2012. https://digital.library.unt.edu/ark:/67531/metadc149652/.

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Texas, due to its geographical area, population, and economy is home to a variety of industrialized areas that have significant air quality problems. These urban areas are affected by elevated levels of fine particulate matter (PM2.5). The primary objective of this study was to identify and quantify local and regional sources of air pollution affecting the city of Houston, Texas. Positive Matrix Factorization (PMF) techniques were applied to observational datasets from two urban air quality monitoring sites in Houston from 2003 through 2008 in order to apportion sources of pollutants affecting
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Shaw, Kelly Ann. "Assessing Two Centuries of Anthropogenic Impacts on Silver Lake, Summit County, Ohio." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1365692437.

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Wik, Maria. "Environmental records of carbonaceous fly-ash particles from fossil-fuel combustion." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 1992. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-110675.

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Fossil fuel combustion produces fly-ash particles that are released into the atmosphere and deposited in the environment. A particularly characteristic kind of fly-ash is spheroidal carbonaceous particles. They are composed of an amorphous carbon matrix in which other elements are dispersed. The elemental carbon content makes them very resistant to chemical degradation and these particles can be relatively easily extracted from sediment and soil samples using a method described in this thesis. The distribution of spheroidal carbonaceous particles in lake sediment profiles, surface sediments an
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Mitchell, Stephanie Bianca. "Sediment Dispersal Processes and Anthropogenic Impacts at Rex Lake, Summit County, Ohio." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1442416877.

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Pérez, Grau Laura. "The urban health effects and impact of anthropogenic and natural air pollution." Doctoral thesis, Universitat Pompeu Fabra, 2009. http://hdl.handle.net/10803/7195.

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The differential role that airborne particulate matter (PM) size fractions, sources, and components play in producing adverse health effects is not fully understood. Specific gaps include the role of PM generated by traffic and the effects of PMs generated by natural sources. Source specific air pollution epidemiological research still lacks integration in the risk assessment process, a fundamental tool to inform policy makers and the public about the current situation or the impact of future or past air pollution policies. This thesis addresses both these gaps. To explore the effects of PM fr
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Pears, Ben. "The nature, distribution and significance of amended and anthropogenic soils on old arable farms and the elemental analysis of black carbonised particles." Thesis, University of Stirling, 2009. http://hdl.handle.net/1893/2291.

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Ever since the development of farming humans have been implicitly linked with the landscape. Influences include the manipulation of natural environments by woodland clearance, field developments and animal husbandry. Development can also be determined by the identification and distribution of soils developed and modified by the addition of organic and inorganic components. Anthropogenic or amended soils have been identified in many forms across north west Europe that retain distinctive physical and chemical indications of historical agrarian and settlement history. This thesis researched the o
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Capítulos de libros sobre el tema "Anthropogenic particle"

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Mayer, Maximilian, Neven Ukrainczyk, and Eduardus Koenders. "R3 Reactivity Test on Biochar from Pyrolyzed Green Waste, Wood Waste, and Screen Overflow." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69626-8_47.

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AbstractGlobal warming is strongly affected by the release of various anthropogenic greenhouse gases, in particular CO2, and is still increasing due to the use of fossil fuels, land use, and the consumption and production of goods. Cement production is accountable for approximately 6% of the global anthropogenic CO2 emissions. In this respect, supplementary cementitious materials (SCMs) made from sustainable resources can make a significant contribution to reducing CO2 emissions and mitigating global warming. Biochar typically possesses the necessary properties, such as microstructure, specifi
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Hale, Robert C., Meredith E. Seeley, Ashley E. King, and Lehuan H. Yu. "Analytical Chemistry of Plastic Debris: Sampling, Methods, and Instrumentation." In Microplastic in the Environment: Pattern and Process. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78627-4_2.

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AbstractApproaches for the collection and analysis of plastic debris in environmental matrices are rapidly evolving. Such plastics span a continuum of sizes, encompassing large (macro-), medium (micro-, typically defined as particles between 1 μm and 5 mm), and smaller (nano-) plastics. All are of environmental relevance. Particle sizes are dynamic. Large plastics may fragment over time, while smaller particles may agglomerate in the field. The diverse morphologies (fragment, fiber, sphere) and chemical compositions of microplastics further complicate their characterization. Fibers are of grow
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H. Arp, Hans Peter, and Kai-Uwe Goss. "Sorption of Anthropogenic Organic Compounds to Airborne Particles." In Biophysico-Chemical Processes of Anthropogenic Organic Compounds in Environmental Systems. John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470944479.ch5.

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Paliukh, B. V., and I. I. Zykov. "Method for Recognizing Anthropogenic Particles in Complex Background Environments." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50097-9_69.

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Pignatello, Joseph J. "Interaction of Anthropogenic Organic Chemicals with Organic Matter in Natural Particles." In Molecular Environmental Soil Science at the Interfaces in the Earth’s Critical Zone. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-05297-2_53.

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Seleznev, Andrian A., Ilia V. Yarmoshenko, Georgy P. Malinovsky, et al. "Anthropogenic Particles in Contemporary Surface Dirt Sediments in an Urban Environment." In Springer Proceedings in Earth and Environmental Sciences. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-00925-0_33.

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Pignatello, Joseph J. "Interactions of Anthropogenic Organic Chemicals with Natural Organic Matter and Black Carbon in Environmental Particles." In Biophysico-Chemical Processes of Anthropogenic Organic Compounds in Environmental Systems. John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470944479.ch1.

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Cezar, Bruna Figueiredo, Margareth da Silva Magalhães, and André Rocha Pimenta. "Application of Iron Mine Waste Rock as an Innovative Cement Replacement Material in Mortar." In Lecture Notes in Civil Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69626-8_19.

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AbstractIn recent decades, the world has experienced a surge in extreme environmental events, exacerbated by the ongoing impacts of climate change. Substantial research underscores the role of anthropogenic CO2 emissions as the primary driver behind climate change and global warming. Cement production, constituting roughly 7% of global anthropogenic CO2 emissions, stands as a significant contributor to this issue. Consequently, there has been a growing focus on mitigation strategies within the cement industry, particularly emphasizing the utilization of mineral admixtures. An innovative yet un
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Ilgasheva, Ekaterina O., Ilya V. Yarmoshenko, Georgy P. Malinovskiy, and Andrian A. Seleznev. "Anthropogenic Particles in the Snow Cover in the Area of the Ice Race Track." In Springer Proceedings in Earth and Environmental Sciences. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49468-1_11.

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Garrison, Ervan G. "Geoarchaeology Underwater and Its Challenges." In New Directions in the Search for the First Floridians. University Press of Florida, 2019. http://dx.doi.org/10.5744/florida/9781683400738.003.0011.

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This chapter examines, in detail, the Geoarchaeological methods for both predicting and interpreting sites subjected to anthropogenic activities and taphonomic processes specific to inundated contexts. Garrison and Hale show that sediment particle-size, grain-size, and point-count studies coupled with debitage/micro-debitage analyses isolate middens deposits from those of natural origin. Chemical, faunal (primarily vertebrate), and floral proxies for anthropogenic activities were lacking, but they related the nature on inundated sites in a marine environment. The authors discuss how sea-level
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Actas de conferencias sobre el tema "Anthropogenic particle"

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Livanov, Oliver, Alexandru Banescu, Adrian Burada, Paula Pindic, and Ciprian Anore. "THE PARTICLE SIZE OF THE BOTTOM SEDIMENTS IN SOME CANALS OF THE FLUVIAL-MARINE DANUBE DELTA." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s01.17.

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In deltaic environments like the Danube Delta, sedimentary particles can range from clay and silt to sand and gravel. The proximity to the Black Sea introduces marine processes into the deltaic system that can be translated as a mixture of fine-grained sediments derived from the fluvial delta along with marine sediments from the Black Sea. This region is of particular importance for the ecology and hydrology of the Danube Delta due to the presence of sandy deposits that cause a major change in both natural and anthropogenic habitats. The emergence of artificial canals dug in sandy deposits had
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Schmid, Alexander, and Gregor Mori. "UNS S31400 Stainless Steel as Reactor Material in a Thermal Cracking Process." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09320.

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Abstract UNS S31400 stainless steel was tested as a reactor material for a thermal cracking process of agricultural, silvicultural, industrial and anthropogenic resources containing HCl. This material was chosen as it offers proper corrosion resistance in hot gases besides a good price and a high availability. In a first step, a bench scale pilot plant has been established and subsequently test runs have been performed. Cross sections of reactor pipes of the bench scale pilot plant were investigated after 30 h test runs by metallography, SEM / EDX and STEM / EDX. In addition, an independent ex
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Dergunov, A. V., and O. E. Yakubailik. "Analysis of the influence of temperature inversions on the ecological situation in Krasnoyarsk." In Spatial Data Processing for Monitoring of Natural and Anthropogenic Processes 2021. Crossref, 2021. http://dx.doi.org/10.25743/sdm.2021.27.58.051.

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The paper analyzes the meteorological conditions in the city of Krasnoyarsk in the period from January 1, 2019, to December 31, 2020. The relationship between temperature inversions in the surface layer of the atmosphere and air pollution by suspended solid particles PM25 is investigated. The paper uses a set of meteorological data of the NCEP GFS weather forecast model on the air temperature on three isobaric surfaces of 1000, 925, and 850 Mb; on wind gusts and the height of the atmospheric boundary layer. Data on PM25 solid particle concentrations and wind speed are provided by the air monit
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Shanley, Kevin T., Goodarz Ahmadi, Philip K. Hopke, and Yung-Sung Cheng. "Fibrous and Spherical Particle Transport and Deposition in the Human Nasal Airway: A Computational Fluid Dynamics Model." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78204.

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As the interface between the human respiratory system and the environment, the nose plays many vital roles. Not the least of which is filter. Resulting from numerous natural and anthropogenic processes, particulate matter becomes airborne. Should particulate matter reach the lower portions of the respiratory tract, a host of maladies may occur. In an attempt to further understand the physics behind particulate matter transitioning from the environment into humans a computational model has been developed to predict the efficiency with which human noses can remove particles before they reach the
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Zhao, Yinlin, Hongjie Wen, Bing Ren, Guoyu Wang, and Yongxue Wang. "An Improved SPH Model for Simulating Hydrodynamic Consequences Induced by Reef Degradation." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18520.

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Abstract Coral reefs degradation accelerates in recent decades due to the natural disturbance and anthropogenic activities. It is important to predict and evaluate reasonably the hydrodynamic consequences of reef degradation. An improved weakly compressible smoothed particle hydrodynamic (WCSPH) porous model is developed based on the standard two-phase mixture theory. The developed WCSPH mixture model is validated by comparing the predicted results with the corresponding available data. The model is then adopted to predict the effects of reef degradation on the spatial distributions of wave se
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OLLAITAN, Razaq Abolaji, and Ayansina AYANLADE. "CHARACTERIZATION OF AEROSOL PARTICLES IN ILORIN, NIGERIA: GROUND-BASED MEASUREMENT APPROACH." In Second Southern Science Conference - 2024. Araucária - Associação Científica, 2024. https://doi.org/10.48141/sscon_54_2024.pdf.

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The present study investigated the changes in aerosol optical characteristics and their impact on climate change risks in Ilorin, Nigeria, focusing on the physical characteristics, spatial distribution, and relationships between aerosol properties. The research utilized ground-based measurements from AERONET data archives to analyze aerosol optical depth and angstrom exponent data, along with single scattering albedo and aerosol size distribution parameters for 2019 and 2021. Analysis was conducted using mean, percentages, and correlation analysis to determine seasonal and annual aerosol prope
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Kayombo, Gracia, and Michel Kalenga Wa Kalenga. "PALM NUTSHELL BIOCHAR QUALITY CORRELATION WITH PYROLYSIS RESIDENCE TIME." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022v/4.2/s18.12.

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The global warming and climate change caused by the anthropogenic activities is expected to increase. To address these issues, one key solution is the utilization of renewable materials such as biomass. Biochar, made from biomass materials is seen as a potential option to replace the fossil fuel-based reductants. Pyrolysis is the most common way of producing biochar. However, the physicochemical properties of biochar are significantly influenced by virgin biomass characteristics and the pyrolysis condition such as the temperature, heating rate, residence time. This paper investigates the impac
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Nakata, M. "Natural and anthropogenic particles over East Asia." In SPIE Remote Sensing, edited by Adolfo Comerón, Evgueni I. Kassianov, Klaus Schäfer, Richard H. Picard, Karin Stein, and John D. Gonglewski. SPIE, 2014. http://dx.doi.org/10.1117/12.2066109.

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Pothana, Prasad, Ghoulem Ifrene, Kegang Ling, and Fernando E. Garcia. "Investigating Grain Size Influence on the Stress-Dependent Permeability of Porous Rocks Using Particulate Discrete Element Method." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0827.

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ABSTRACT Reservoir in-situ stresses continuously evolve during the reservoir life cycle because of the production of hydrocarbons, injection of water and CO2 for enhanced oil recovery, storage of CO2, and nuclear waste disposal. The induced changes to the stress state deform the reservoir rock, including the pores and fractures in the rock, and hence change the permeability of the rock. Studies demonstrate that grain size significantly affects the mechanical properties and strength of rock, yet little research exists on the effect of grain size on stress-sensitive seepage behavior. In this stu
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Bagaev, Andrei, Andrei Bagaev, Irina Chubarenko, and Irina Chubarenko. "microplastics, numerical modelling, the Baltic Sea, anthropogenic pollution." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b93d66c1b80.07366457.

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An overview of modern approaches to the problem of parametrisation of sources of marine waters microplastics pollution from the coastline is conducted. The estimates of Europe’s plastic production along with mismanaged plastic waste percentage that might be the source of microplastics particles input to marine environment are presented. A semi-empirical for-mulation for the particles source intensity is suggested. It considers the main factors of local anthropogenic pressure for the coastal spot location for the given coordinates. Both ad-vantages and disadvantages of such an approach along wi
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Informes sobre el tema "Anthropogenic particle"

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Clausen, Jay, Samuel Beal, Thomas Georgian, Kevin Gardner, Thomas Douglas, and Ashley Mossell. Effects of milling on the metals analysis of soil samples containing metallic residues. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41241.

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Metallic residues are distributed heterogeneously onto small-arms range soils from projectile fragmentation upon impact with a target or berm backstop. Incremental Sampling Methodology (ISM) can address the spatially heterogeneous contamination of surface soils on small-arms ranges, but representative kilogram-sized ISM subsamples are affected by the range of metallic residue particle sizes in the sample. This study compares the precision and concentrations of metals in a small-arms range soil sample processed by a puck mill, ring and puck mill, ball mill, and mortar and pestle prior to analys
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Jimenez, Jose-Luis, Douglas A. Day, Scot T. Martin, et al. Brazil-USA Collaborative Research: Modifications by Anthropogenic Pollution of the Natural Atmospheric Chemistry and Particle Microphysics of the Tropical Rain Forest During the GoAmazon Intensive Operating Periods (IOPs). Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1374492.

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Kim, Saewung. Brazil-USA Collaborative Research: Modifications by Anthropogenic Pollution of the Natural Atmospheric Chemistry and Particle Microphysics of the Tropical Rain Forest During the GoAmazon Intensive Operating Periods (IOPs). Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1414578.

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Martin, Scot. Brazil-USA Collaborative Research: Modifications by Anthropogenic Pollution of the Natural Atmospheric Chemistry and Particle Microphysics of the Tropical Rain Forest During the GoAmazon Intensive Operating Periods (IOPs). Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1419006.

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