Results 11 to 20 of about 247,498 (307)
ACM Transactions on Graphics, 2018 The current state of the art in real-time two-dimensional water wave simulation requires developers to choose between efficient Fourier-based methods, which lack interactions with moving obstacles, and finite-difference or finite element methods, which handle environmental interactions but are significantly more expensive. This paper attempts to bridge
Stefan Jeschke +5 more
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Microbial methane oxidation efficiency and robustness during lake overturn
Limnology and Oceanography Letters, 2021 Many seasonally stratified lakes accumulate substantial amounts of the greenhouse gas methane in the anoxic zone. Methane oxidizing bacteria in the water column act as a converter, oxidizing methane into carbon dioxide and biomass before it reaches the ...
M. Zimmermann +7 more
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Penetrative Convection Modifies the Dynamics of Downslope Gravity Currents
Geophysical Research Letters, 2023 Gravity currents contribute to the transport of heat and mass in atmospheric and aquatic environments. In aquatic systems subject to daily surface cooling, gravity currents propagate through turbulent convective surroundings.
T. Doda +4 more
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Water on graphene surfaces [PDF]
Journal of Physics: Condensed Matter, 2010 In this paper, we summarize the main results obtained in our group about the behavior of water confined inside or close to different graphene surfaces by means of molecular dynamics simulations. These include the inside and outside of carbon nanotubes, and the confinement inside a slit pore or a single graphene sheet.
Gordillo Bargueño, Maria Carmen +1 more
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Proceedings of the National Academy of Sciences, 2007 Water autoionization reaction 2H 2 O → H 3 O − + OH − is a textbook process of basic importance, resulting in pH = 7 for pure water. However, pH of pure water surface is shown to be significantly lower, the reduction being caused by proton ...
Buch, Victoria +4 more
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Persisting Water Droplets on Water Surfaces [PDF]
The Journal of Physical Chemistry B, 2010 Droplets of various liquids may float on the respective surfaces for extended periods of time prior to coalescence. We explored the features of delayed coalescence in highly purified water. Droplets several millimeters in diameter were released from a nozzle onto a water surface.
Ivan S, Klyuzhin +4 more
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Interplay of community dynamics, temperature, and productivity on the hydrogen isotope signatures of lipid biomarkers [PDF]
Biogeosciences, 2017 The hydrogen isotopic composition (δ2H) of lipid biomarkers has diverse applications in the fields of paleoclimatology, biogeochemistry, and microbial community dynamics.
S. N. Ladd +5 more
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Accounting for surface waves improves gas flux estimation at high wind speed in a large lake [PDF]
Earth System Dynamics, 2021 The gas transfer velocity (k) is a major source of uncertainty when assessing the magnitude of lake gas exchange with the atmosphere. For the diversity of existing empirical and process-based k models, the transfer velocity increases with the level of ...
P. Perolo +6 more
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Average seasonal changes in chlorophyll a in Icelandic waters [PDF]
, 2009 The standard algorithms used to derive sea surface chlorophyll a concentration from remotely sensed ocean colour data are based almost entirely on the measurements of surface water samples collected in open sea (case 1) waters which cover ~60% of the ...
Gudmundsson, K. +9 more
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Frontiers in Microbiology, 2020 In stratified lakes, methane-oxidizing bacteria (MOB) are strongly mitigating methane fluxes to the atmosphere by consuming methane entering the water column from the sediments.
Carole Guggenheim +8 more
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