Results 51 to 60 of about 1,652,719 (226)

Spatial distribution of urban basic education resources in Shanghai: Accessibility and supply-demand matching evaluation

Open Geosciences, 2023
This article focuses on Shanghai as a case study and utilizes various factors such as points of interest, nighttime lights, land use, road networks, and Digital Elevation Model to examine the spatial distribution of population.
Yuan Hongfu, Yang Xiangguo
doaj   +1 more source

Bias Correction of Satellite Precipitation Estimation Using Deep Neural Networks and Topographic Information Over the Western U.S.

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 4, 28 February 2025.
Abstract Satellite‐based precipitation products (SPPs) have gained popularity among researchers due to their utility in hydrologic studies. Several gridded satellite‐based precipitation products with global coverage, such as the Integrated Multi‐satellitE Retrievals for GPM (IMERG) and the Precipitation Estimation from Remotely Sensed Information using
Vu Dao, Claudia Jimenez Arellano, Phu Nguyen, Fahad Almutlaq, Kuolin Hsu, Soroosh Sorooshian   +5 more
wiley   +1 more source

TanDEM-X Mission and DEM Accuracy [PDF]

, 2009
TanDEM-X (TerraSAR-X Add-on for Digital Elevation Measurements) is currently implemented as a national Earth observation mission by the German Aerospace (DLR) and EADS Astrium GmbH.
Johannes, Böer, Zink, Manfred, Fiedler, Hauke, Bachmann, Markus, Krieger, Gerhard, Hueso Gonzalez, Jaime   +5 more
core  

Japan Digital Elevation Model [DEM]

, 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, Skinner, G.W., Berman, Lex   +2 more
core   +1 more source

The performance of landslide susceptibility models critically depends on the quality of digital elevation models

Geomatics, Natural Hazards & Risk, 2020
Considering the critical importance of the quality of input data for landslide susceptibility, we investigate the performance improvements that can be achieved by different globally available digital elevation models (DEMs) using different state-of-the ...
Jonas Brock, Patrick Schratz, Helene Petschko, Jannes Muenchow, Mihai Micu, Alexander Brenning   +5 more
doaj   +1 more source

The Study of Water Content on the Coal Loading Performance of Thin Coal Seam Shearer Drum by Discrete Element Method (DEM)

Engineering Reports, Volume 7, Issue 1, January 2025.
Loading methods, helical angles, and rotation speed of drum have significant effects on the loading rate of drum. In this study, Discrete Element Method (DEM) is used to study what effects of these several factors have on the loading rate under different water contents.
Kuidong Gao, Wenhe Zhang, Yuanjin Zhang, Weipeng Xu, Liqing Sun   +4 more
wiley   +1 more source

Analysis of DEM combination methods using high resolution optical stereo imagery and interferometric SAR data [PDF]

, 2009
Digital elevation models (DEM) from satellite data are generated mainly from two types of datasets using completely different methods: photogrammetry for optical stereo images (e.g.
Hoja, Danielle, d'Angelo, Pablo
core  

Macro–Microscopic Mechanical Study of Clay–Structure Interface Shear Behavior Using Direct Shear Testing and DEM Simulation

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
Understanding the interface shear behavior between clay and structures is crucial in geotechnical engineering. The mechanism of the roughness effect in the shear process between the clay and structures was studied to reveal the macroscopic and microscopic interface shear behavior.
Tingting Sun, Jingnan Yang, Kuang Shi, Shufeng Lin, Jixing Yang, Yi Shan   +5 more
wiley   +1 more source

Validation of the tie-point concepts by the DEM adjustment approach of TanDEM-X [PDF]

, 2010
The aimed accuracies for the final TanDEM-X DEM of 10m absolute and 2m relative height error will be ensured by calibration data. One crucial data set for the relative accuracy is tie-points that connect adjacent DEM acquisitions in the approximately 4km-
Huber, Martin, Gruber, Astrid, Wessel, Birgit, Breunig, Markus, Wendleder, Anna   +4 more
core  

Shear test as calibration experiment for DEM simulations: Spheropolygonal particle model [PDF]

FME Transactions
The rapid development of computer technology provides an opportunity for researchers dealing with discrete element modeling to develop more accurate particle models.
Huang Junhao, Safranyik Ferenc, Tóth János, Keppler István   +3 more
doaj   +1 more source