Results 231 to 240 of about 35,022 (266)

Planar terrain corrections in Bulgaria with insight into the differences due to the use of DSM and DEM

2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Goyal, R., Pashova, L., Claessens, S., Dikshit, O.   +3 more
openaire   +2 more sources

Effect of differing DEM creation methods on the results from a hydrological model

Computers & Geosciences, 2007
It is known that digital elevation models (DEMs) can vary in quality depending on their method of creation. Six DEMs derived from digitised contours from the British Ordnance Survey were compared. The DEMs were used to run TOPMODEL for a small catchment in Devon.
openaire   +1 more source

Comparison of Various DEMs for Height Accuracy Assessment Over Different Terrains of India

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
In this paper, the height accuracy of various DEMs such as TanDEM-X Global DEM, newly released TanDEM-X 90 m DEM, TanDEM-X ascending or descending DEM, SRTM 30 m, 90 m DEMs, provisional version of the NASADEM, and the aerial LiDAR DEM are assessed over three different Indian terrains.
Divya Sekhar Vaka, Vineet Kumar 0004, Y. S. Rao 0001, Rinki Deo   +3 more
openaire   +1 more source

DEM Studies on the Liquefaction Behavior of Particles With Different Aspect Ratios

2018
Discrete element method (DEM) provides insight into the fundamental physical principles leading to a better understanding of the complex behavior of granular materials under different loading conditions. In the reported studies adopting DEM, real particle shape is ignored, and the particles are modeled as spheres. Spherical shapes are preferred as they
null Anitha Kumari S. D., null Sitharam T. G.   +1 more
openaire   +1 more source

Experimental and DEM Examinations of K0 in Sand under Different Loading Conditions

Journal of Geotechnical and Geoenvironmental Engineering, 2014
AbstractThis paper reports K0 of dry sand in response to different loading conditions and under secondary compression. The experiments were carried out using an oedometer and tactile pressure sensors were used to measure the horizontal stress for K0 calculations. During loading, K0 remains a constant as the vertical stress σv′ increases.
Gao, Yao, Wang, Yu-hsing
openaire   +2 more sources

A benchmarking study of different DEM coarse graining strategies

Powder Technology, 2023
V. Brandt, J. Grabowski, N. Jurtz, M. Kraume, H. Kruggel-Emden   +4 more
openaire   +1 more source

A DEM comparison of different shear testing devices

2020
C. Thornton, L. Zhang
openaire   +1 more source

Landslide monitoring: use of multi-temporal DEMs derived from different techniques [PDF]

, 2004
The comparison of Digital Elevation Models (DEMs) is a powerful tool for Earth surface deformation studies in landslide area. The use of DEMs allows in many cases a full description of the process, while the classical geodetic ground-based measurements give a sampling of deformation field at a limited number of points.
Pesci A., BALDI, PAOLO, Casula G., Cenni N., FABRIS, MASSIMO, Loddo F., MORA, PAOLO   +6 more
openaire   +1 more source

DEM accuracy comparison between different models from different stereo pairs

International Journal of Remote Sensing, 2007
Y. Chen, P. Shi, J. Li, L. Deng, D. Hu, Y. Fan   +5 more
openaire   +1 more source

A meshless Lagrangian particle-based porosity formulation for under-resolved generalised finite difference-DEM coupling in fluidised beds

Powder Technology, 2022
Nicolin Govender, Daniel N Wilke, Patrick Pizette   +2 more
exaly