Log in

Relevant bibliographies by topics / Soot particle deposition / Journal articles

To see the other types of publications on this topic, follow the link: Soot particle deposition.

Journal articles on the topic 'Soot particle deposition'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Soot particle deposition.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ueckert, O., and K. Siegmann. "Soot particle deposition in the human respiratory tract." Journal of Aerosol Science 30 (September 1999): S797—S798. http://dx.doi.org/10.1016/s0021-8502(99)80409-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Lutic, Doina, Joakim Pagels, Robert Bjorklund, et al. "Detection of Soot Using a Resistivity Sensor Device Employing Thermophoretic Particle Deposition." Journal of Sensors 2010 (2010): 1–6. http://dx.doi.org/10.1155/2010/421072.

Full text

Abstract:

Results are reported for thermophoretic deposition of soot particles on resistivity sensors as a monitoring technique for diesel exhaust particles with the potential of improved detection limit and sensitivity. Soot with similar characteristics as from diesel exhausts was generated by a propane flame and diluted in stages. The soot in a gas flow at 240–270C∘was collected on an interdigitated electrode structure held at a considerably lower temperature, 105–125C∘. The time delay for reaching measurable resistance values, the subsequent rate, and magnitude of resistance decrease were a function

APA, Harvard, Vancouver, ISO, and other styles

3

Fragkiadoulakis, Pavlos, Savas Geivanidis, and Zissis Samaras. "Modeling a resistive soot sensor by particle deposition mechanisms." Journal of Aerosol Science 123 (September 2018): 76–90. http://dx.doi.org/10.1016/j.jaerosci.2018.06.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Teini, Paul D., Darshan M. A. Karwat, and Arvind Atreya. "Observations of nascent soot: Molecular deposition and particle morphology." Combustion and Flame 158, no. 10 (2011): 2045–55. http://dx.doi.org/10.1016/j.combustflame.2011.03.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

MESSERER, A., R. NIESSNER, and U. PÖSCHL. "CONTINUOUS SOOT PARTICLE DEPOSITION AND OXIDATION IN NOVEL PARTICLE TRAPPING OXIDATION CATALYSTS." Journal of Aerosol Science 35 (July 2004): S1185—S1186. http://dx.doi.org/10.1016/s0021-8502(19)30320-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Hagen, Gunter, Christoph Spannbauer, Markus Feulner, Jaroslaw Kita, Andreas Müller, and Ralf Moos. "Conductometric Soot Sensors: Internally Caused Thermophoresis as an Important Undesired Side Effect." Sensors 18, no. 10 (2018): 3531. http://dx.doi.org/10.3390/s18103531.

Full text

Abstract:

Particulate matter sensors are of interest for application in the exhaust of any combustion processes, especially for automotive aftertreatment systems. Conductometric soot sensors have been serialized recently. They comprise planar interdigital electrodes (IDE) on an insulating substrate. Between the IDEs, a voltage is applied. Soot deposition is accelerated by the resulting electric field due to electrophoresis. With increasing soot deposition, the conductance between the IDE increases. The timely derivative of the conductance can serve as a sensor signal, being a function of the deposition

APA, Harvard, Vancouver, ISO, and other styles

7

Bika, Anil Singh, Alok Warey, David Long, Sandro Balestrino, and Patrick Szymkowicz. "Characterization of Soot Deposition and Particle Nucleation in Exhaust Gas Recirculation Coolers." Aerosol Science and Technology 46, no. 12 (2012): 1328–36. http://dx.doi.org/10.1080/02786826.2012.712730.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Hoose, Corinna, Jón Egill Kristjánsson, Jen-Ping Chen, and Anupam Hazra. "A Classical-Theory-Based Parameterization of Heterogeneous Ice Nucleation by Mineral Dust, Soot, and Biological Particles in a Global Climate Model." Journal of the Atmospheric Sciences 67, no. 8 (2010): 2483–503. http://dx.doi.org/10.1175/2010jas3425.1.

Full text

Abstract:

Abstract An ice nucleation parameterization based on classical nucleation theory, with aerosol-specific parameters derived from experiments, has been implemented into a global climate model—the Community Atmosphere Model (CAM)-Oslo. The parameterization treats immersion, contact, and deposition nucleation by mineral dust, soot, bacteria, fungal spores, and pollen in mixed-phase clouds at temperatures between 0° and −38°C. Immersion freezing is considered for insoluble particles that are activated to cloud droplets, and deposition and contact nucleation are only allowed for uncoated, unactivate

APA, Harvard, Vancouver, ISO, and other styles

9

Abarham, Mehdi, Tejas Chafekar, John W. Hoard, et al. "In-situ visualization of exhaust soot particle deposition and removal in channel flows." Chemical Engineering Science 87 (January 2013): 359–70. http://dx.doi.org/10.1016/j.ces.2012.09.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Crawford, I., O. Möhler, M. Schnaiter, et al. "Studies of propane flame soot acting as heterogeneous ice nuclei in conjunction with single particle soot photometer measurements." Atmospheric Chemistry and Physics Discussions 11, no. 4 (2011): 11007–38. http://dx.doi.org/10.5194/acpd-11-11007-2011.

Full text

Abstract:

Abstract. The ice nucleation efficiency of propane flame soot particles with and without a sulphuric acid coating was investigated using the aerosol and cloud chamber facility AIDA (Aerosol Interaction and Dynamics in the Atmosphere). The test soot for cloud formation simulations was produced using a propane flame Combustion Aerosol Standard generator (CAST, Jing-CAST Technologies). The organic carbon content (OC) of the test soot was altered in a reproducible fashion by changing the fuel/air mixture of the generator. The soot content of ice nuclei was subsequently investigated using a combina

APA, Harvard, Vancouver, ISO, and other styles

11

Crawford, I., O. Möhler, M. Schnaiter, et al. "Studies of propane flame soot acting as heterogeneous ice nuclei in conjunction with single particle soot photometer measurements." Atmospheric Chemistry and Physics 11, no. 18 (2011): 9549–61. http://dx.doi.org/10.5194/acp-11-9549-2011.

Full text

Abstract:

Abstract. The ice nucleation efficiency of propane flame soot particles with and without a sulphuric acid coating was investigated using the aerosol and cloud chamber facility AIDA (Aerosol Interaction and Dynamics in the Atmosphere). The test soot for cloud formation simulations was produced using a propane flame Combustion Aerosol Standard generator (CAST, Jing-CAST Technologies). The organic carbon content (OC) of the test soot was altered in a reproducible fashion by changing the fuel/air mixture of the generator. The soot content of ice nuclei was subsequently investigated using a combina

APA, Harvard, Vancouver, ISO, and other styles

12

Karl, Matthias, Jaakko Kukkonen, Menno P. Keuken, Susanne Lützenkirchen, Liisa Pirjola, and Tareq Hussein. "Modeling and measurements of urban aerosol processes on the neighborhood scale in Rotterdam, Oslo and Helsinki." Atmospheric Chemistry and Physics 16, no. 8 (2016): 4817–35. http://dx.doi.org/10.5194/acp-16-4817-2016.

Full text

Abstract:

Abstract. This study evaluates the influence of aerosol processes on the particle number (PN) concentrations in three major European cities on the temporal scale of 1 h, i.e., on the neighborhood and city scales. We have used selected measured data of particle size distributions from previous campaigns in the cities of Helsinki, Oslo and Rotterdam. The aerosol transformation processes were evaluated using the aerosol dynamics model MAFOR, combined with a simplified treatment of roadside and urban atmospheric dispersion. We have compared the model predictions of particle number size distributio

APA, Harvard, Vancouver, ISO, and other styles

13

Middelburg, Luke M., Mohammadamir Ghaderi, David Bilby, et al. "Maintaining Transparency of a Heated MEMS Membrane for Enabling Long-Term Optical Measurements on Soot-Containing Exhaust Gas." Sensors 20, no. 1 (2019): 3. http://dx.doi.org/10.3390/s20010003.

Full text

Abstract:

Ensuring optical transparency over a wide spectral range of a window with a view into the tailpipe of the combustion engine, while it is exposed to the harsh environment of soot-containing exhaust gas, is an essential pre-requisite for introducing optical techniques for long-term monitoring of automotive emissions. Therefore, a regenerable window composed of an optically transparent polysilicon-carbide membrane with a diameter ranging from 100 µm up to 2000 µm has been fabricated in microelectromechanical systems (MEMS) technology. In the first operating mode, window transparency is periodical

APA, Harvard, Vancouver, ISO, and other styles

14

Gschaider, Bernhard F. W., Claudia C. Honeger, Christian E. P. Redl, and Johannes Leixnering. "Soot Particle Deposition within Porous Structures using a Method-of-Moments-Lattice-Boltzmann Approach." International Journal for Multiscale Computational Engineering v4, no. i2 (2006): 221–32. http://dx.doi.org/10.1615/intjmultcompeng.v4.i2.30.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Floyd, Jason, K. Overholt, and O. Ezekoye. "Soot Deposition and Gravitational Settling Modeling and the Impact of Particle Size and Agglomeration." Fire Safety Science 11 (2014): 376–88. http://dx.doi.org/10.3801/iafss.fss.11-376.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Mari, Xavier, Jérôme Lefèvre, Jean-Pascal Torréton, et al. "Effects of soot deposition on particle dynamics and microbial processes in marine surface waters." Global Biogeochemical Cycles 28, no. 7 (2014): 662–78. http://dx.doi.org/10.1002/2014gb004878.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Paven, Maxime, Periklis Papadopoulos, Lena Mammen, et al. "Optimization of superamphiphobic layers based on candle soot." Pure and Applied Chemistry 86, no. 2 (2014): 87–96. http://dx.doi.org/10.1515/pac-2014-5015.

Full text

Abstract:

Abstract Liquid repellent layers can be fabricated by coating a fractal-like layer of candle soot particles with a silicon oxide layer, combusting the soot at 600 °C and subsequently silanizing with perfluoroalkylsilanes. Drops of different liquids deposited on these so called “superamphiphobic” layers easily roll off thanks to the low liquid-solid adhesion. The lower value of the surface tension of liquids that can be repelled depends on details of the processing. Here, we analyze the influence of the soot deposition duration and height with respect to the flame on the structure and wetting p

APA, Harvard, Vancouver, ISO, and other styles

18

Pfirman, Stephanie, Manfred A. Lange, and Tamara S. Ledley. "Potential Consequences Of “Dirty” Arctic Sea Ice." Annals of Glaciology 14 (1990): 355. http://dx.doi.org/10.1017/s0260305500009290.

Full text

Abstract:

Observations of high particulate loads on Eurasian Basin sea ice in 1987 raise questions of consequence for sediment budgets, ice melting, ice modeling and remote sensing. Biogenic and lithogenic particles were observed in concentrations high enough to color the ice surface brown over large area (greater than 15 × 15 km2) within the Siberian branch of the Transpolar Drift stream. The sediment is most likely incorporated when ice forms on the Siberian shelf seas, and is concentrated at the ice surface after several years of summer surface melting and biological growth within the Arctic basin. M

APA, Harvard, Vancouver, ISO, and other styles

19

Pfirman, Stephanie, Manfred A. Lange, and Tamara S. Ledley. "Potential Consequences Of “Dirty” Arctic Sea Ice." Annals of Glaciology 14 (1990): 355. http://dx.doi.org/10.3189/s0260305500009290.

Full text

Abstract:

Observations of high particulate loads on Eurasian Basin sea ice in 1987 raise questions of consequence for sediment budgets, ice melting, ice modeling and remote sensing. Biogenic and lithogenic particles were observed in concentrations high enough to color the ice surface brown over large area (greater than 15 × 15 km2) within the Siberian branch of the Transpolar Drift stream. The sediment is most likely incorporated when ice forms on the Siberian shelf seas, and is concentrated at the ice surface after several years of summer surface melting and biological growth within the Arctic basin. M

APA, Harvard, Vancouver, ISO, and other styles

20

Hoose, C., and O. Möhler. "Heterogeneous ice nucleation on atmospheric aerosols: a review of results from laboratory experiments." Atmospheric Chemistry and Physics Discussions 12, no. 5 (2012): 12531–621. http://dx.doi.org/10.5194/acpd-12-12531-2012.

Full text

Abstract:

Abstract. A small subset of the atmospheric aerosol population has the ability to induce ice formation at conditions under which ice would not form without them (heterogeneous ice nucleation). While no closed theoretical description of this process and the requirements for good ice nuclei is available, numerous studies have attempted to quantify the ice nucleation ability of different particles empirically in laboratory experiments. In this article, an overview of these results is provided. Ice nucleation onset conditions for various mineral dust, soot, biological, organic and ammonium sulphat

APA, Harvard, Vancouver, ISO, and other styles

21

Margiotta, S., A. Lettino, A. Speranza, and V. Summa. "PM<sub>1</sub> geochemical and mineralogical characterization using SEM-EDX to identify particle origin – Agri Valley pilot area (Basilicata, southern Italy)." Natural Hazards and Earth System Sciences 15, no. 7 (2015): 1551–61. http://dx.doi.org/10.5194/nhess-15-1551-2015.

Full text

Abstract:

Abstract. A PM1 geochemical and mineralogical study using Scanning Electron Microscopy (SEM) was performed on a pilot site in the Agri Valley which is close to the oil pre-treatment plant (C.O.V.A) of Europe's largest on-shore hydrocarbon reservoir. The study identified PM1 geochemical and mineralogical characters in the period before, during and immediately after a burning torch flare event. The finer fraction (DFe < 0.7 μm) consisted mainly of secondary particles and soot. In the coarser fraction (DFe ≥ 0.7 μm), natural particles originating from crustal erosion and soot were abundant. Fi

APA, Harvard, Vancouver, ISO, and other styles

22

Margiotta, S., A. Lettino, A. Speranza, and V. Summa. "PM<sub>1</sub> geochemical and mineralogical characterization using SEM-EDX to identify particle origin – Agri Valley pilot area (Basilicata, Southern Italy)." Natural Hazards and Earth System Sciences Discussions 3, no. 1 (2015): 291–318. http://dx.doi.org/10.5194/nhessd-3-291-2015.

Full text

Abstract:

Abstract. A PM1 geochemical and mineralogical study using Scanning Electron Microscopy (SEM) was performed on a pilot site in the Agri Valley which is close to the oil pre-treatment plant (C.O.V.A) of the Europe's largest on-shore hydrocarbon reservoir. The study identified PM1 geochemical and mineralogical characters in a period before, during and immediately after a burning torch flare event. The finer fraction (DFe < 0.7 μm) consisted mainly of secondary particles and soot. In the coarser fraction (DFe ≥ 0.7 μm), natural particles originating from crustal erosion and soot were abundant.

APA, Harvard, Vancouver, ISO, and other styles

23

Hoose, C., and O. Möhler. "Heterogeneous ice nucleation on atmospheric aerosols: a review of results from laboratory experiments." Atmospheric Chemistry and Physics 12, no. 20 (2012): 9817–54. http://dx.doi.org/10.5194/acp-12-9817-2012.

Full text

Abstract:

Abstract. A small subset of the atmospheric aerosol population has the ability to induce ice formation at conditions under which ice would not form without them (heterogeneous ice nucleation). While no closed theoretical description of this process and the requirements for good ice nuclei is available, numerous studies have attempted to quantify the ice nucleation ability of different particles empirically in laboratory experiments. In this article, an overview of these results is provided. Ice nucleation "onset" conditions for various mineral dust, soot, biological, organic and ammonium sulfa

APA, Harvard, Vancouver, ISO, and other styles

24

Zanatta, Marco, Andreas Herber, Zsófia Jurányi, Oliver Eppers, Johannes Schneider, and Joshua P. Schwarz. "Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer." Atmospheric Chemistry and Physics 21, no. 12 (2021): 9329–42. http://dx.doi.org/10.5194/acp-21-9329-2021.

Full text

Abstract:

Abstract. After aerosol deposition from the atmosphere, black carbon (BC) takes part in the snow albedo feedback contributing to the modification of the Arctic radiative budget. With the initial goal of quantifying the concentration of BC in the Arctic snow and subsequent climatic impacts, snow samples were collected during the research vessel (R/V) Polarstern expedition of PASCAL (Physical Feedbacks of Arctic Boundary Layer, Sea Ice, Cloud and Aerosol; Polarstern cruise 106) in the sea-ice-covered Fram Strait in early summer 2017. The refractory BC (rBC) content was then measured in the labor

APA, Harvard, Vancouver, ISO, and other styles

25

Zuccaro, G., G. Lapenta, F. Ferrero, and G. Maizza. "Multiphase and multiphysics particle in cell simulation of soot deposition inside a diesel particulate filter single channel." Computer Physics Communications 182, no. 2 (2011): 347–59. http://dx.doi.org/10.1016/j.cpc.2010.10.011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Li, Zhijun, Fangchao Yan, Xiangjin Kong, Boxi Shen, Zhiyang Li, and Yan Wang. "Simulation of soot particle deposition inside porous walls based on lattice Boltzmann method for diesel particulate filter." Journal of Environmental Chemical Engineering 9, no. 4 (2021): 105396. http://dx.doi.org/10.1016/j.jece.2021.105396.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Svensson, Jonas, Johan Ström, and Aki Virkkula. "Multiple-scattering correction factor of quartz filters and the effect of filtering particles mixed in water: implications for analyses of light absorption in snow samples." Atmospheric Measurement Techniques 12, no. 11 (2019): 5913–25. http://dx.doi.org/10.5194/amt-12-5913-2019.

Full text

Abstract:

Abstract. The deposition of light-absorbing aerosol (LAA) onto snow initiates processes that lead to increased snowmelt. Measurements of LAA, such as black carbon (BC) and mineral dust, have been observed globally to darken snow. Several measurement techniques of LAA in snow collect the particulates on filters for analysis. Here we investigate micro-quartz filters' optical response to BC experiments in which the particles are initially suspended in air or in a liquid. With particle soot absorption photometers (PSAPs) we observed a 20 % scattering enhancement for quartz filters compared to the

APA, Harvard, Vancouver, ISO, and other styles

28

Liu, D., J. Allan, J. Whitehead, et al. "Ambient black carbon particle hygroscopic properties controlled by mixing state and composition." Atmospheric Chemistry and Physics Discussions 12, no. 11 (2012): 28955–92. http://dx.doi.org/10.5194/acpd-12-28955-2012.

Full text

Abstract:

Abstract. The wet removal of black carbon aerosol (BC) in the atmosphere is a crucial factor in determining its atmospheric lifetime and thereby the vertical and horizontal distributions, dispersion on local and regional scales, and the direct, semi-direct and indirect radiative forcing effects. The in-cloud scavenging and wet deposition rate of freshly emitted hydrophobic BC will be increased on acquisition of more-hydrophilic components by coagulation or coating processes. The lifetime of BC is still subject to considerable uncertainty for most of the model inputs, which is largely due to th

APA, Harvard, Vancouver, ISO, and other styles

29

Liu, D., J. Allan, J. Whitehead, et al. "Ambient black carbon particle hygroscopic properties controlled by mixing state and composition." Atmospheric Chemistry and Physics 13, no. 4 (2013): 2015–29. http://dx.doi.org/10.5194/acp-13-2015-2013.

Full text

Abstract:

Abstract. The wet removal of black carbon aerosol (BC) in the atmosphere is a crucial factor in determining its atmospheric lifetime and thereby the vertical and horizontal distributions, dispersion on local and regional scales, and the direct, semi-direct and indirect radiative forcing effects. The in-cloud scavenging and wet deposition rate of freshly emitted hydrophobic BC will be increased on acquisition of more-hydrophilic components by coagulation or coating processes. The lifetime of BC is still subject to considerable uncertainty for most of the model inputs, which is largely due to th

APA, Harvard, Vancouver, ISO, and other styles

30

Uecker, Ted M., Susan D. Kaspari, Keith N. Musselman, and S. McKenzie Skiles. "The Post-Wildfire Impact of Burn Severity and Age on Black Carbon Snow Deposition and Implications for Snow Water Resources, Cascade Range, Washington." Journal of Hydrometeorology 21, no. 8 (2020): 1777–92. http://dx.doi.org/10.1175/jhm-d-20-0010.1.

Full text

Abstract:

AbstractWildfires in the snow zone affect ablation by removing forest canopy, which enhances surface solar irradiance, and depositing light absorbing particles [LAPs, such as black carbon (BC)] on the snowpack, reducing snow albedo. How variations in BC deposition affects post-wildfire snowmelt timing is poorly known and highly relevant to water resources. We present a field-based analysis of BC variability across five sites of varying burn age and burn severity in the Cascade Range, Washington State, United States. Single particle soot photometer (SP2) analyses of BC snow concentrations were

APA, Harvard, Vancouver, ISO, and other styles

31

Marinou, Eleni, Matthias Tesche, Athanasios Nenes, et al. "Retrieval of ice-nucleating particle concentrations from lidar observations and comparison with UAV in situ measurements." Atmospheric Chemistry and Physics 19, no. 17 (2019): 11315–42. http://dx.doi.org/10.5194/acp-19-11315-2019.

Full text

Abstract:

Abstract. Aerosols that are efficient ice-nucleating particles (INPs) are crucial for the formation of cloud ice via heterogeneous nucleation in the atmosphere. The distribution of INPs on a large spatial scale and as a function of height determines their impact on clouds and climate. However, in situ measurements of INPs provide sparse coverage over space and time. A promising approach to address this gap is to retrieve INP concentration profiles by combining particle concentration profiles derived by lidar measurements with INP efficiency parameterizations for different freezing mechanisms (

APA, Harvard, Vancouver, ISO, and other styles

32

Linton, R. W., T. F. Fister, S. S. Summers, G. S. Strossman, M. J. Holland, and R. W. Odom. "Molecular Surface Imaging of Particles Using Microprobe Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS)." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 1046–47. http://dx.doi.org/10.1017/s042482010016769x.

Full text

Abstract:

The objective of this research is to develop imaging time-of-flight secondary ion mass spectrometry (TOF-SIMS) to characterize ultra-thin organic films on microscopic particles. An initial application is to evaluate the surface chemistry of polycyclic organic matter (POM) on combustion-generated particles as an area of fundamental interest in the assessment of the environmental fate and impact of carcinogenic pollutants.Controlled deposition of POM monolayers was achieved using either gas or solution phase coating on model particles such as silica, as well as on authentic environmental particl

APA, Harvard, Vancouver, ISO, and other styles

33

Yokelson, R. J., I. R. Burling, S. P. Urbanski, et al. "Trace gas and particle emissions from open biomass burning in Mexico." Atmospheric Chemistry and Physics Discussions 11, no. 3 (2011): 7321–74. http://dx.doi.org/10.5194/acpd-11-7321-2011.

Full text

Abstract:

Abstract. We report airborne measurements of emission factors (EF) for trace gases and PM2.5 made in southern Mexico in March of 2006 on 6 crop residue fires, 3 tropical dry forest fires, 8 savanna fires, 1 garbage fire, and 7 mountain pine-oak forest fires. The savanna fire EF were measured early in the local dry season and when compared to EF measured late in the African dry season they were at least 1.7 times larger for NOx, NH3, H2, and most non-methane organic compounds. Our measurements suggest that urban deposition and high windspeed may also be associated with significantly elevated NO

APA, Harvard, Vancouver, ISO, and other styles

34

Yokelson, R. J., I. R. Burling, S. P. Urbanski, et al. "Trace gas and particle emissions from open biomass burning in Mexico." Atmospheric Chemistry and Physics 11, no. 14 (2011): 6787–808. http://dx.doi.org/10.5194/acp-11-6787-2011.

Full text

Abstract:

Abstract. We report airborne measurements of emission factors (EF) for trace gases and PM2.5 made in southern Mexico in March of 2006 on 6 crop residue fires, 3 tropical dry forest fires, 8 savanna fires, 1 garbage fire, and 7 mountain pine-oak forest fires. The savanna fire EF were measured early in the local dry season and when compared to EF measured late in the African dry season they were at least 1.7 times larger for NOx, NH3, H2, and most non-methane organic compounds. Our measurements suggest that urban deposition and high windspeed may also be associated with significantly elevated NO

APA, Harvard, Vancouver, ISO, and other styles

35

Li, Kangning, Xingnan Ye, Hongwei Pang, et al. "Temporal variations in the hygroscopicity and mixing state of black carbon aerosols in a polluted megacity area." Atmospheric Chemistry and Physics 18, no. 20 (2018): 15201–18. http://dx.doi.org/10.5194/acp-18-15201-2018.

Full text

Abstract:

Abstract. Black carbon (BC) aerosols in the atmosphere strongly affect radiative forcing. They are mainly removed from the air by wet deposition, and their lifetime is controlled by their water uptake ability or hygroscopicity, which is a function of aerosol mixing states. It is well known that atmospheric aging processes coat various materials on BC aerosols and affect their mixing states and hygroscopicity. However, detailed relations between the aging processes and the hygroscopicity and mixing state of BC aerosol particles in polluted city areas are not well understood. Here, we studied th

APA, Harvard, Vancouver, ISO, and other styles

36

Park, Sangjun, Kyo Lee, and Jungsoo Park. "Parametric Study on EGR Cooler Fouling Mechanism Using Model Gas and Light-Duty Diesel Engine Exhaust Gas." Energies 11, no. 11 (2018): 3161. http://dx.doi.org/10.3390/en11113161.

Full text

Abstract:

Exhaust gas recirculation (EGR) and high-pressure fuel injection are key technologies for reducing diesel engine emissions in the face of reinforced regulations. With the increasing need for advanced EGR technologies to achieve low-temperature combustion and low emission, the adverse etableffects of EGR must be addressed. One of the main problems is fouling of the EGR cooler, which involves the deposition of particulate matter (PM) due to the thermophoretic force between the cooler wall and flow field. A large amount of deposited PM can reduce the effectiveness of the heat exchanger in the EGR

APA, Harvard, Vancouver, ISO, and other styles

37

Colvin, Jacob, Michael Carter, and James Sears. "Fabrication of Conductors and Inductors by Nano-Particle Deposition through Direct Write Technology." Journal of Microelectronics and Electronic Packaging 3, no. 3 (2006): 121–28. http://dx.doi.org/10.4071/1551-4897-3.3.121.

Full text

Abstract:

Direct Write Technologies are being utilized in antennas, engineered structures, sensors, and tissue engineering. One form of the Direct Write Technologies is Maskless Mesoscale Material Deposition (M3D) for Optomec, Inc. M3D is a process that uses aerosol formation, transport and deposition. Inks for the M3D utilize nano-particles in suspension for deposition. Several different conductive inks were deposited with M3D and characterized for electrical resistivity and microstructure. Soft magnetic material was formulated as an ink suspension, deposited and characterized. This paper will report o

APA, Harvard, Vancouver, ISO, and other styles

38

Suo, Xinkun, Shuo Yin, Hua Li, and Rocco Lupoi. "Numerical and Experimental Investigation on Bonding Behavior of Cold Sprayed Porous WC-17Co Particles onto Different Substrates." Coatings 8, no. 10 (2018): 367. http://dx.doi.org/10.3390/coatings8100367.

Full text

Abstract:

Cold sprayed WC-Co metal matrix composite coatings have shown great potential in wear-resistance applications. This work aims to use experimental and numerical methods to clarify the deposition and particle–substrate bonding behavior of a single porous WC-17Co particle onto various substrates. To achieve this objective, porous WC-17Co particles were used as the feedstock; soft Al 2024 (Al alloy) and hard stainless steel 316 (SS) were used as the substrates. The experimental results revealed that brittle WC-Co particles tended to remain intact after depositing on a soft Al alloy substrate, but

APA, Harvard, Vancouver, ISO, and other styles

39

Spackman, J. R., R. S. Gao, W. D. Neff, et al. "Aircraft observations of enhancement and depletion of black carbon mass in the springtime Arctic." Atmospheric Chemistry and Physics 10, no. 19 (2010): 9667–80. http://dx.doi.org/10.5194/acp-10-9667-2010.

Full text

Abstract:

Abstract. Understanding the processes controlling black carbon (BC) in the Arctic is crucial for evaluating the impact of anthropogenic and natural sources of BC on Arctic climate. Vertical profiles of BC mass loadings were observed from the surface to near 7-km altitude in April 2008 using a Single-Particle Soot Photometer (SP2) during flights on the NOAA WP-3D research aircraft from Fairbanks, Alaska. These measurements were conducted during the NOAA-sponsored Aerosol, Radiation, and Cloud Processes affecting Arctic Climate (ARCPAC) project. In the free troposphere, the Arctic air mass was i

APA, Harvard, Vancouver, ISO, and other styles

40

Barahona, D. "On the ice nucleation spectrum." Atmospheric Chemistry and Physics Discussions 11, no. 11 (2011): 29601–46. http://dx.doi.org/10.5194/acpd-11-29601-2011.

Full text

Abstract:

Abstract. This work presents a novel formulation of the ice nucleation spectrum, i.e. the function relating the ice crystal concentration to cloud formation conditions and aerosol properties. The new formulation relies on a statistical view of the ice nucleation process and explicitly accounts for the dependency of the ice crystal concentration on temperature, supersaturation, cooling rate, and particle size, and, in the case of heterogeneous ice nucleation, on the distributions of particle area and surface composition. The new formulation is used to generate ice nucleation parameterizations f

APA, Harvard, Vancouver, ISO, and other styles

41

Marcolli, C. "Deposition nucleation viewed as homogeneous or immersion freezing in pores and cavities." Atmospheric Chemistry and Physics Discussions 13, no. 6 (2013): 16367–456. http://dx.doi.org/10.5194/acpd-13-16367-2013.

Full text

Abstract:

Abstract. Heterogeneous ice nucleation is an important mechanism for the glaciation of mixed phase clouds and may also be relevant for cloud formation and dehydration at the cirrus cloud level. It is thought to proceed through different mechanisms, namely contact, condensation, immersion and deposition nucleation. Supposedly, deposition nucleation is the only pathway which does not involve liquid water but occurs by direct water vapor deposition on a surface. This study challenges this classical view by putting forward the hypothesis that what is called deposition nucleation is in fact homogen

APA, Harvard, Vancouver, ISO, and other styles

42

Jenkins, M., S. Kaspari, S. Kang, B. Grigholm, and P. A. Mayewski. "Black carbon concentrations from a Tibetan Plateau ice core spanning 1843–1982: recent increases due to emissions and glacier melt." Cryosphere Discussions 7, no. 5 (2013): 4855–80. http://dx.doi.org/10.5194/tcd-7-4855-2013.

Full text

Abstract:

Abstract. Black carbon (BC) deposited on snow and glacier surfaces can reduce albedo and lead to accelerated melt. An ice core recovered from Guoqu glacier on Mt. Geladaindong and analyzed using a Single Particle Soot Photometer provides the first long-term (1843–1982) record of BC concentrations from the Central Tibetan Plateau. The highest concentrations are observed from 1975–1982, which corresponds to a 2.0-fold and 2.4-fold increase in average and median values, respectively, relative to 1843–1940. BC concentrations post-1940 are also elevated relative to the earlier portion of the record

APA, Harvard, Vancouver, ISO, and other styles

43

Barahona, D. "On the ice nucleation spectrum." Atmospheric Chemistry and Physics 12, no. 8 (2012): 3733–52. http://dx.doi.org/10.5194/acp-12-3733-2012.

Full text

Abstract:

Abstract. This work presents a novel formulation of the ice nucleation spectrum, i.e. the function relating the ice crystal concentration to cloud formation conditions and aerosol properties. The new formulation is physically-based and explicitly accounts for the dependency of the ice crystal concentration on temperature, supersaturation, cooling rate, and particle size, surface area and composition. This is achieved by introducing the concepts of ice nucleation coefficient (the number of ice germs present in a particle) and nucleation probability dispersion function (the distribution of ice n

APA, Harvard, Vancouver, ISO, and other styles

44

Wang, Hong Tao, Gang Chang Ji, Xiao Chen, et al. "Influence of Powder Type and Substrate Hardness on the Deposition Behavior of WC-17Co Particle in Cold Spraying." Advanced Materials Research 314-316 (August 2011): 176–80. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.176.

Full text

Abstract:

In this study, the influence of particle type and substrate hardness on the deposition behavior of single WC-17Co particle during the cold spraying process was investigated. The morphology of the deposited particles was examined by scanning electron microscopy (SEM) from the particle surface and cross-sections. It was found that with increasing substrate hardness, the deposition behavior of WC-17Co particles transformed from completely embedding into soft substrate to partially flattening and even rebounding from the hard substrate. In the comparison between different powder types, spherical n

APA, Harvard, Vancouver, ISO, and other styles

45

Spackman, J. R., R. S. Gao, W. D. Neff, et al. "Aircraft observations of enhancement and depletion of black carbon mass in the springtime Arctic." Atmospheric Chemistry and Physics Discussions 10, no. 6 (2010): 15167–96. http://dx.doi.org/10.5194/acpd-10-15167-2010.

Full text

Abstract:

Abstract. Understanding the processes controlling black carbon (BC) in the Arctic is crucial for evaluating the impact of anthropogenic and natural sources of BC on Arctic climate. Vertical profiles of BC mass were observed from the surface to near 7-km altitude in April 2008 using a Single-Particle Soot Photometer (SP2) during flights on the NOAA WP-3D research aircraft from Fairbanks, Alaska. These measurements were conducted during the NOAA-sponsored Aerosol, Radiation, and Cloud Processes affecting Arctic Climate (ARCPAC) project as part of POLARCAT, an International Polar Year (IPY) activ

APA, Harvard, Vancouver, ISO, and other styles

46

Hong, Seunghyun, Sehun Jung, Sunjung Kang, et al. "Dielectrophoretic Deposition of Graphite Oxide Soot Particles." Journal of Nanoscience and Nanotechnology 8, no. 1 (2008): 424–27. http://dx.doi.org/10.1166/jnn.2008.076.

Full text

Abstract:

Alternating current dielectrophoresis in water was used to position graphite oxide soot (GO-soot) particles generated by rapid thermal expansion of graphite oxide under inert gas. The dielectrophoretic deposition was carried out at a frequency of 10 MHz and a peak-to-peak voltage of 10 V, and the deposited particles were analyzed using scanning electron microscopy. The vertical cross section, obtained by focused ion beam cutting, shows the wrinkled layers of the GO-soot particles and cavities between the layers. The electrical transport measurements show typical characteristics of metal-like p

APA, Harvard, Vancouver, ISO, and other styles

47

Wu, Zhaoyang, Chen Xian, Jixiang Jia, Xiangwei Liao, Hui Kong, and Kun Xu. "Formation Process of the Integrated Core(Fe-6.5wt.%Si)@Shell(SiO2) Structure Obtained via Fluidized Bed Chemical Vapor Deposition." Metals 10, no. 4 (2020): 520. http://dx.doi.org/10.3390/met10040520.

Full text

Abstract:

As electromagnetic functional materials, soft magnetic composites (SMCs) have great potential for applications in high-energy electromagnetic conversion devices. The most effective way to optimize the performance of an SMC is to incorporate it into insulated ferromagnetic core-shell particles with high structural uniformity and integrity. Fluidized bed chemical vapor deposition (FBCVD) is a facile and efficient technique for the synthesis of ferromagnetic/SiO2 core-shell particles. However, the formation mechanism and conditions of integrated ferromagnetic/SiO2 core-shell structures during the

APA, Harvard, Vancouver, ISO, and other styles

48

Wei, Chao, Zhenzhen Chen, Chao Hu, and Haitao Wang. "Highly active catalysts of iron-based materials with Au nanoparticles for soot oxidation." E3S Web of Conferences 136 (2019): 06029. http://dx.doi.org/10.1051/e3sconf/201913606029.

Full text

Abstract:

Gold nanoparticles supported on transition metal oxide catalysts have been prepared by deposition-precipitation. Their catalytic activity with or without Au doped has been tested for soot oxidation. Au improves the catalytic activity of transition metal oxide for the oxidation of soot particles. Under the catalysis of Au/Co3O4, the initial oxidation temperature of soot is 354 ℃.

APA, Harvard, Vancouver, ISO, and other styles

49

Shin, Sumin, Sanghoon Yoon, Youngdo Kim, and Changhee Lee. "Effect of particle parameters on the deposition characteristics of a hard/soft-particles composite in kinetic spraying." Surface and Coatings Technology 201, no. 6 (2006): 3457–61. http://dx.doi.org/10.1016/j.surfcoat.2006.07.255.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Xu, Liang, Satoshi Fukushima, Sophie Sobanska, et al. "Tracing the evolution of morphology and mixing state of soot particles along with the movement of an Asian dust storm." Atmospheric Chemistry and Physics 20, no. 22 (2020): 14321–32. http://dx.doi.org/10.5194/acp-20-14321-2020.

Full text

Abstract:

Abstract. Tracing the aging progress of soot particles during transport is highly challenging. An Asian dust event could provide an ideal opportunity to trace the continuous aging progress of long-range-transported soot particles. Here, we collected individual aerosol particles at an inland urban site (T1) and a coastal urban site (T2) in China and a coastal site (T3) in southwestern Japan during an Asian dust event. Microscopic analysis showed that the number fraction of soot-bearing particles was 19 % and 16 % at T1 and T2 in China but surprisingly increased to 56 % at T3 in Japan. The domin

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!