Results 221 to 230 of about 36,366 (264)
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The Impact of Misregistration on SRTM and DEM Image Differences
Remote Sensing of Environment, 2008Abstract Image differences between Shuttle Radar Topography Mission (SRTM) data and other Digital Elevation Models (DEMs) are often performed for either accuracy assessment or for estimating vegetation height across the landscape. It has been widely assumed that the effect of sub-pixel misregistration between the two models on resultant image ...
Thomas Van Niel +2 more
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DEMS Strategy for the Determination of the Difference in Surface Acidity of Carbon Materials [PDF]
Electrochemistry Communications, 2018 The authors gratefully acknowledge financial support given by Spanish MINECO (ENE2014-52158-C2-2-R and 1-R). GG acknowledges the Viera y Clavijo program (ACIISI & ULL) for financial support.
Elena Pastor +2 more
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Comparison of different drag models in CFD-DEM simulations of spouted beds
Powder Technology, 2020Abstract Spouted beds are commonly simulated through the Computational Fluid Dynamics – Discrete Element Method approach. The choice of the drag model is still a matter of debate, as they feature peculiar operative conditions. In this work, we simulated two spouted beds containing Geldart-D particles.
Marchelli F. +4 more
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New Cell for DEMS Applicable to Different Electrode Sizes
Electrocatalysis, 2011Present approaches to use simple crystal electrodes for DEMS have certain disadvantages: Thin layer cells with defined diffusion and/or convection require large single discs of 1 cm diameter; also, a part of the crystal surface has to be pressed against a spacer. Other approaches, which allow the use of small bead crystals, have the disadvantage of ill-
Abd-El-Aziz A. Abd-El-Latif +4 more
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Uncertainty of SWAT model at different DEM resolutions in a large mountainous watershed
Water Research, 2014The objective of this study was to enhance understanding of the sensitivity of the SWAT model to the resolutions of Digital Elevation Models (DEMs) based on the analysis of multiple evaluation indicators. The Xiangxi River, a large tributary of Three Gorges Reservoir in China, was selected as the study area.
Peipei, Zhang +5 more
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Multi-Scale DEM Generalization Processing in Different Landform Areas
Advanced Materials Research, 2013As a special kind of image, the grid-based digital elevation model (DEM) is directly related with the landform and topography feature. In the real word, there are various landforms, and the results of different methods for DEM processing vary greatly. However, the discussion of using different methods in different landform areas in DEM generalization ...
Yu Min Chen +4 more
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Discussion on the Difference of the Grain Particle Parameters in Reality and DEM
2016The discrete element method was widely used in analyzing mechanics and movement behaviors of grain particle in recent years. An application of the method in the field of grains was presented in this paper. The experiment and simulation about the angle of corn indicates that the particle shape cannot be ignored in discrete element simulations, as well ...
Huinan Sun, Zhuoqing Zhang
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2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Goyal, R. +3 more
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The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Goyal, R. +3 more
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Effect of differing DEM creation methods on the results from a hydrological model
Computers & Geosciences, 2007It 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.
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