Results 31 to 40 of about 253 (181)

Planar laser-induced incandescence for the study of soot production in a multi-sector RQL Jet A combustor

Applications in Energy and Combustion Science
Understanding the production of non-volatile particulate matter (nvPM), which is composed primarily of soot, is critical not only for reducing emissions but also for improving engine performance.
Russell McGrath, Jeremiah Juergensmeyer, Robert Bond, Ezekiel Bugay, Shawn Wehe, David Wu, Adam Steinberg, Wenting Sun, Yi Chen Mazumdar   +8 more
doaj   +1 more source

Primary soot particle distributions in a combustion field of 4 kW pulverized coal jet burner measured by time resolved laser induced incandescence (TiRe-LII)

Journal of Thermal Science and Technology, 2016
To develop accurate models for the numerical simulation of coal combustion field, detailed experimental data using laser techniques, which can figure out the basic phenomena in a coal flame, are necessary.
Nozomu HASHIMOTO, Jun HAYASHI, Noriaki NAKATSUKA, Kazuki TAINAKA, Satoshi UMEMOTO, Hirofumi TSUJI, Fumiteru AKAMATSU, Hiroaki WATANABE, Hisao MAKINO   +8 more
doaj   +1 more source

Suitability of Different Methods for Measuring Black Carbon Emissions from Marine Engines

Atmosphere, 2021
Black carbon (BC) emissions intensify global warming and are linked to adverse health effects. The International Maritime Organization (IMO) considers the impact of BC emissions from international shipping. A prerequisite for the anticipated limits to BC
Päivi Aakko-Saksa, Niina Kuittinen, Timo Murtonen, Päivi Koponen, Minna Aurela, Anssi Järvinen, Kimmo Teinilä, Sanna Saarikoski, Luis M. F. Barreira, Laura Salo, Panu Karjalainen, Ismael K. Ortega, David Delhaye, Kati Lehtoranta, Hannu Vesala, Pasi Jalava, Topi Rönkkö, Hilkka Timonen   +17 more
doaj   +1 more source

Laser-induced incandescence versus photo-acoustics: implications for qualitative soot size diagnostics [PDF]

Applied Physics B, 2019
Laser-induced incandescence at high-repetition rates can in principle be used to resolve the temporal evolution of soot processes. The intrusive character of this technique, however, requires due care of historical effects associated with multiple exposures of individual soot particles to laser light.
Willems, R.C., Bakker, P.C., Dam, N.J.
openaire   +2 more sources

Impact of Oxygenated Additives on Soot Properties during Diesel Combustion

Energies, 2020
Emissions from diesel engines can be limited and potentially decreased by modifying the fuel chemical composition through additive insertion. One class of additives that have shown to be particularly efficient in the reduction of the particulates from ...
Natascia Palazzo, Lars Zigan, Franz J. T. Huber, Stefan Will   +3 more
doaj   +1 more source

Investigation of Black Carbon Wet Deposition to the United States from National Atmospheric Deposition Network Samples

Aerosol and Air Quality Research, 2023
Black carbon (BC) aerosols from burning biomass, fossil fuels, and waste are transported over large distances in the Earth’s atmosphere, absorbing sunlight, altering climate, and impacting air quality.
Piyaporn Sricharoenvech, Ross Edwards, Müge Yaşar, David Gay, James J. Schauer   +4 more
doaj   +1 more source

Laser-induced incandescence applied to dusty plasmas

Journal of Physics D: Applied Physics, 2016
This paper reports on the laser heating of nanoparticles (diameters ≤1 μm) confined in a reactive plasma by short (150 ps) and intense (~63 mJ) UV (355 nm) laser pulses (laser-induced incandescence, LII). Important parameters such as the particle temperature and radius follow from analysis of the emission spectrum of the heated nanoparticles.
van de Wetering, F.M.J.H., Oosterbeek, W., Beckers, J., Nijdam, S., Kovacevic, E., Berndt, J.   +5 more
openaire   +1 more source

Quantification of the radiative impact of light-absorbing particles during two contrasted snow seasons at Col du Lautaret (2058 m a.s.l., French Alps) [PDF]

The Cryosphere, 2020
The presence of light-absorbing particles (LAPs) in snow leads to a decrease in short-wave albedo affecting the surface energy budget. However, the understanding of the impacts of LAPs is hampered by the lack of dedicated datasets, as well as the ...
F. Tuzet, F. Tuzet, M. Dumont, G. Picard, M. Lamare, M. Lamare, D. Voisin, P. Nabat, M. Lafaysse, F. Larue, J. Revuelto, J. Revuelto, L. Arnaud   +12 more
doaj   +1 more source

Effects of hydrogen addition on soot emission of methane and propane coaxial jet diffusion flames

Journal of Thermal Science and Technology
In recent years, environmental problems such as global warming and air pollution have been recognized more seriously. Soot in the combustion products is one of the causes of air pollution.
Kazuhiro YAMAMOTO, Wataru KIMURA
doaj   +1 more source

Multimodal Optical Imaging and Modulation with Simultaneous Electrophysiology Through Smart Dura in Non‐Human Primates

Advanced Science, EarlyView.
This study demonstrates multimodal integration in non‐human primates, combining large‐scale, high‐density electrophysiology using Smart Dura with optical techniques such as multiphoton imaging (MPI), photothrombotic lesioning, optical coherence tomography angiography (OCTA), wide‐field intrinsic signal optical imaging (ISOI), and optogenetics.
Nari Hong, Sergio Montalvo Vargo, Gaku Hatanaka, Zhaoyu Gong, Noah Stanis, Jasmine Zhou, Tiphaine Belloir, Ruikang K. Wang, Wyeth Bair, Maysamreza Chamanzar, Azadeh Yazdan‐Shahmorad   +10 more
wiley   +1 more source