Results 61 to 70 of about 1,141,152 (233)
LANDSCAPE/ECOLOGICAL MODELLING OF WATER BALANCE OF THE WEST SIBERIA SOUTHEAST
Водное хозяйство России: проблемы, технологии, управление, 2020 The article presents the technique of landscape ecological modeling of water balance for the Southeast of Western Siberia. This technique enables to assess the impact of different types of land use on the structure of the water balance.
Artem O. Eliseyev, Sergey G. Kopysov
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3‐D impulse‐based level‐set method for granular flow modeling
International Journal for Numerical Methods in Engineering, Volume 125, Issue 17, 15 September 2024.Abstract We explore the viability of modeling dynamic problems with a new formulation of an impulse‐based Level‐Set DEM (LS‐DEM). The new formulation is stable, fast, and energy conservative. However, it can be numerically stiff when the assembly has substantial mass differences between particles.
Peng Tan +2 more
wiley +1 more source
International Journal for Numerical Methods in Engineering, Volume 125, Issue 5, 15 March 2024.Abstract The level‐set‐discrete‐element‐method (LS‐DEM) was developed to overcome the shape limitation of traditional discrete element method. LS‐DEM's shape generality relies on a node‐based surface discretization of grain boundary, and it has been used to shed new light of a variety of granular mechanics applications with realistically shaped grains ...
Shai Feldfogel +3 more
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On the friction dependency of the stress Lode angle
International Journal for Numerical and Analytical Methods in Geomechanics, Volume 48, Issue 4, Page 1001-1017, March 2024.Abstract The shape of the failure locus of a material is significant for its strength predictions. Even when constitutive models include the same critical stress surface, different critical stress ratios can be predicted for an identical applied isochoric strain path. In this article, we investigate critical stress predictions of different constitutive
Gertraud Medicus +3 more
wiley +1 more source
工程科学学报The interaction at the geosynthetic–reinforced soil interface is a key factor in determining the stability of reinforced soil structures, with soil particle morphology significantly influencing this interaction.
Jingting LI +3 more
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Comparing RUSLE LS Calculation Methods Across Varying DEM Resolutions
Modern GeográfiaSoil erosion reduces land productivity and causes environmental degradation. Soil erosion models, such as the Revised Universal Soil Loss Equation (RUSLE), are used to estimate the severity and distribution of erosion.
Moody, Amanda, Hickey, Robert
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Measuring High Level Democratic Principles using the V-Dem Data
, 2015 While the definition of extended conceptions of democracy has been widely discussed, the measurement of these constructs has not attracted similar attention.
Skaaning, Svend-Erik +14 more
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Comparison Result of DEM Generated from Aster Stereo Data and SRTM
, 2007 This paper explains a method to generated DEM (Digital Elevation Model) from ASTER (Advanced Spaceborn Thermal Emission and Reflection Radiometer) stereo data and evaluates the generation of ASTER DEM and SRTM (Shuttle Radar Topography Mission) DEM with ...
Ita Carolita, Bambang Trisakti
core
V-Dem Comparisons and Contrasts with Other Measurement Projects
, 2017 For policymakers, activists, academics, and citizens around the world the conceptualization and measurement of democracy matters. The needs of democracy promoters and social scientists are convergent. We all need better ways to measure democracy.
Skaaning, Svend-Erik +9 more
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The Influence of Heterogeneity on Lunar Irradiance Based on Multiscale Analysis
Remote Sensing, 2019 The Moon is a stable light source for the radiometric calibration of satellite sensors. It acts as a diffuse panel that reflects sunlight in all directions, however, the lunar surface is heterogeneous due to its topography and different mineral content ...
Xiangzhao Zeng, Chuanrong Li
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