Results 71 to 80 of about 937 (213)

Numerical Simulation of Barchan-barchan repulsion

The dataset shared within these files consists of the full setup to perform a numerical simulation of a subaquous barchan-barchan dune interaction. The simulation was carried out using the open-source free CFDEM software, which couples the open-source ...
Lima, N (via Mendeley Data)
core   +1 more source

How attractive is a barchan dune?

New Journal of Physics, 2009
The spatio-temporal behaviour of barchan dunes is investigated experimentally with downsized longitudinal barchan dune slices generated in a narrow water flow tube. The development towards a shape attractor is shown on the basis of four different starting configurations in qualitative observation and quantitative analysis.
Christopher Groh, Ingo Rehberg, Christof A Kruelle   +2 more
openaire   +3 more sources

Bubble Printing of Anisotropic Clay Nanotubes

Advanced Optical Materials, Volume 13, Issue 25, September 3, 2025.
Bubble printing patterns of lyotropic liquid crystal nanotubes form toroidal or linear patterns depending on laser movement and colloidal stability. Long nanotubes create radial filament bundles, while poor electrostatic repulsion hinders deposition.
Claire Hotton, Erwan Paineau, Eric H. Hill   +2 more
wiley   +1 more source

LC‐MS and FTIR‐Based Characterization of Flavonoid‐Rich Extract of Hyoscyamus albus L. Plant and its Multifunctional Bioactivities

ChemistrySelect, Volume 10, Issue 34, September 8, 2025.
Investigation of flavonoid extract of Hyoscyamus albus L. Abstract The current study aimed to determine the phytochemical composition of the flavonoid‐rich extract of Hyoscyamus albus L. (FEHA), collected from the Khenchela region, and to investigate its multiple bioactivities. Phytochemical profiling was explored using LC‐MS and FTIR.
Nour Elhouda Ayeb, Kenza Kadi, Dalila Addad, Abdecharif Boumaza, Kamel Nagaz, Nadjwa Aissani, Amina Bouzana, Sabrina Lekmine, Fehmi Boufahja, Hassan A Rudayni, Stefania Garzoli, Hamdi Bendif   +11 more
wiley   +1 more source

Corridors of barchan dunes: Stability and size selection [PDF]

Physical Review E, 2004
Barchans are crescentic dunes propagating on a solid ground. They form dune fields in the shape of elongated corridors in which the size and spacing between dunes are rather well selected. We show that even very realistic models for solitary dunes do not reproduce these corridors. Instead, two instabilities take place.
Hersen, Pascal, Andersen, Ken H., Elbelrhiti, Hicham, Andreotti, Bruno, Claudin, Philippe, Douady, Stéphane   +5 more
openaire   +4 more sources

Pioneering Evidence of the Dynamics of Water Vapor and CO2 Fluxes in Sahara Desert Soils

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 9, September 2025.
Abstract Soil CO2 flux (Fc) is a major component of the global carbon balance. It is often overlooked in arid regions as low soil moisture restricts microbial and root respiration. Studies in the last decades challenge this paradigm, reporting an anomalous diurnal cycle of Fc in arid regions. This diurnal cycle is thought to be initiated by geochemical
N. Bekin, D. S. Ashilenje, A. Chehbouni, L. Bouchaou, D. Kool, N. Agam   +5 more
wiley   +1 more source

Sand Dune Dynamics Exploiting a Fully Automatic Method Using Satellite SAR Data

Remote Sensing, 2020
This work presents an automatic procedure to quantify dune dynamics on isolated barchan dunes exploiting Synthetic Aperture RADAR satellite data. We use C-band datasets, allowing the multi-temporal analysis of dune dynamics in two study areas, one ...
José Manuel Delgado Blasco, Marco Chini, Gert Verstraeten, Ramon F. Hanssen   +3 more
doaj   +1 more source

CNN training of experimental images for "Detection and tracking of barchan dunes using Artificial Intelligence"

, 2023
This is part of the dataset concerning the YOLO training of experimental images (Barchan dunes). In this dataset, you find the "YOLOv8 train" folder that contains the structure and images observed during lab experiments to train a CNN with ...
Cunez, E (via Mendeley Data)
core   +1 more source

Change of Grain Size Parameters of Sediments as a Result of Wind Activity. Barchans Jarangiyn Els in Gobi, Mongolia

Miscellanea Geographica: Regional Studies on Development, 2004
Research conducted on the Jarangiyn els field on the Gobi desert in Mongolia took place during the transformation of barchans resulting from the changes in wind direction.
Potocki Mariusz, Angiel Piotr
doaj   +1 more source

Surface Dust Coverages on Rock Targets in Gale Crater: Influence of Elevation, Proximity to Aeolian Sand Fields and Seasonality

Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.
Abstract Martian dust is mobilized throughout the year by local, regional, and global dust storms, influencing atmospheric opacity and inhibiting observations of the surface. Using Mars Hand Lens Imager (MAHLI) images and methods of Schmidt et al. (2018), https://doi.org/10.1029/2018je005553, areal dust coverages on 368 near‐horizontal, undisturbed ...
T. L. J. Henley, M. E. Schmidt, K. W. Lewis, J. E. Moores, C. Hayes, S. L. Bray, N. J. Bradley, R. E. Lee, I. K. Marincic, K. W. Turner, S. D. Guzewich, C. E. Newman, G. Bischof, D. Viúdez‐Moreiras   +13 more
wiley   +1 more source