Results 31 to 40 of about 1,141,152 (233)

Semiautomated classification of units in volcanic terrain based on three morphometric attributes derived from a digital elevation model (DEM)

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 5, May 2026.
The proposed method better responds to the needs of detailed cartography improving the working scale (local and regional) representation; also roughness attributes facilitate the identification of geomorphological units, and the DEM generation method enhances terrain representation.
Carolina Ramírez Núñez   +3 more
wiley   +1 more source

Impact of democracy on economic, human, and societal development

open access: yesHumanities & Social Sciences Communications
How does democracy affect economic, human, and societal development? We review the scientific evidence on this question from 2010 to present, finding that democracy improves economic growth, population health, gender equality, and peace. However, we find
Staffan I Lindberg   +6 more
doaj   +1 more source

Evaluation of LISS-III Sensor Data of IRS-P6 Satellite for Detection Saline Soils (Case Study: Najmabad Region) [PDF]

open access: yesDesert, 2012
Soil Salinity has been a large problem in arid and semi arid regions. Preparation of such maps is useful for Natural resource managers. Old methods of preparing such maps require a lot of time and cost.
M. Shirazi   +3 more
doaj   +1 more source

Insights Into the Mechanisms Controlling the Residual Strength of Bio‐cemented Sands

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 6, Page 2711-2726, 25 April 2026.
ABSTRACT Microbially induced carbonate precipitation (MICP) is an emerging technique for enhancing the mechanical properties of granular soils. Although several experimental studies have reported increased shear strength in MICP‐treated soils at both peak and residual states, other findings have shown reductions in residual strength compared to ...
Aoxi Zhang   +3 more
wiley   +1 more source

DEM

open access: yes, 2022
dem ...
Yang (14050515)
core   +1 more source

The Role of Basal Roughness and Assemblage Grain‐Size Distribution in Shaping Granular Rheology and Basal‐Force Signals

open access: yesJournal 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

Monitoring bulk material pressure on bottom of storage using DEM

open access: yesOpen Engineering, 2019
This article focuses on the experimental verification of a mathematical derivation of Janssen’s theory, which describes the distribution of pressures within the bulk material and pressure distribution on the walls of storage facilities.
Žurovec David   +3 more
doaj   +1 more source

Impact of SRTM and ASTER Terrain Models on Geoid Determination: A Case Study in the High‐Mountainous Region

open access: yesEarth 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

Varieties of Democracy (V-DEM) Annual Report 2019 - "Democracy Facing Global Challenges” [PDF]

open access: yes, 2019
Democracy in decline in more countries than ever before. The 2019 Democracy Report is titled “Democracy Facing Global Challenges”. Democratic declines now affect more countries than ever before.

core  

Japan Digital Elevation Model [DEM]

open access: yes, 2015
For the Regional Systems Analysis of Japan, the GTOP0 30 arc second resolution data tiles were projected into Lambert Comformal Conic projection using Clarke 1866 datum, with units in meters.
Henderson, Mark   +2 more
core   +1 more source

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