Results 41 to 50 of about 2,930,695 (264)
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.Abstract We present idealized 3‐D discrete element simulations exploring how varying boundary roughness and grain‐size distribution affect bulk granular‐rheology and basal‐force distributions. Boundary roughness has a direct control on the internal static friction coefficient.
P. Zrelak, E. C. P. Breard, J. Dufek
wiley +1 more source
Sensors, 2020 A digital elevation model (DEM) can be obtained by removing ground objects, such as buildings, in a digital surface model (DSM) generated by the interferometric synthetic aperture radar (InSAR) system. However, the imaging mechanism will cause unreliable
Qian Qian +3 more
doaj +1 more source
The four freedoms in the EU: Are they inseparable? Bertelsmann Stiftung EUROPA Briefing 2017 [PDF]
, 2017 The four freedoms govern the movement of goods, persons, services and capital within the EU. They are the cornerstones of the Single Market and the common currency.
auf dem Brinke, Anna
core
Earth and Space Science, Volume 12, Issue 10, October 2025.Abstract An accurate geoid has important consequences for many fields such as engineering applications, underground resource exploration, geophysical surveys, etc. Its precise determination relies on two key data sets: gravity measurements and high‐resolution elevation data, both of which are critical for achieving reliable results.
Leyla Cakir
wiley +1 more source
The potential of global solar radiation in the Silesia region as a renewable source of energy
Environmental & Socio-economic Studies, 2016 Historically, Silesia has been at the centre of the Polish coal industry for many years and thus has experienced poorer air quality compared to other voivodeships.
Waniek Katarzyna
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DEM-based analysis of morphometric features in humid and hyper-arid environments using artificial neural network [PDF]
Desert, 2009 This paper presents a robust approach using artificial neural networks in the form of a Self Organizing Map (SOM) as a semi-automatic method for analysis and identification of morphometric features in two completely different environments, the Man and ...
A.H Ehsani, F. Quiel
doaj +1 more source
Search for the waterfalls in Ethiopia using remote sensing data
Трансформация экосистем, 2021 Waterfalls are specific hydrological and hydrobiological objects that often serve as the natural obstacles for spreading of aquatic animal species, resulting as discontinuous range of these species.
Alexey V. Kutuzov
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European taxes: Do we need them? Bertelsmann Stiftung EUROPA Briefing 2017 [PDF]
, 2017 In the European Union, each member state is responsible for its tax system. Different national regimes help with tax competition, but can also lead to tax evasion or unfair rules in the Single Market.
auf dem Brinke, Anna
core
River Research and Applications, Volume 41, Issue 7, Page 1418-1426, September 2025.ABSTRACT Streambank erosion is an important source of sediment to river systems but is difficult to quantify at watershed scales. In this study, high‐resolution Light Detection and Ranging (LiDAR) measurements collected from 2009 and 2020 were used to quantify the difference in land surface elevation that occurred along the fourth and fifth‐order ...
Calvin F. Wolter +3 more
wiley +1 more source
International Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 5, Page 1420-1436, 10 April 2025.ABSTRACT In this work, a fatigue crack propagation model is proposed using the two‐dimensional discrete element method (DEM). The challenge lies in describing the small progressive fatigue crack growth within a single cycle, which is typically much smaller than the size of the smallest particles, making it difficult to continuously capture the loss of ...
Lei Ma +3 more
wiley +1 more source