Results 31 to 40 of about 166,782,770 (304)

The effect of grid size on the quantification of erosion, deposition, and rill network

International Soil and Water Conservation Research, 2017
Hillslope rill/interrill erosion has been investigated from the perspective of runoff transport of sediment. Recent advances in terrestrial laser scanning can provide high-resolution elevation data up to centimeter levels, and temporal digital elevation ...
Xiaoyu Lu, Yingkui Li, Robert A. Washington-Allen, Yanan Li, Haidong Li, Qingwu Hu   +5 more
doaj   +1 more source

Improving the Accuracy of TanDEM-X Digital Elevation Model Using Least Squares Collocation Method

Remote Sensing, 2023
The TanDEM-X Digital Elevation Model (DEM) is limited by the radar side-view imaging mode, which still has gaps and anomalies that directly affect the application potential of the data. Many methods have been used to improve the accuracy of TanDEM-X DEM,
Xingdong Shen, Cui Zhou, Jianjun Zhu
doaj   +1 more source

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

, 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   +1 more source

SRTM DEM Correction in Vegetated Mountain Areas through the Integration of Spaceborne LiDAR, Airborne LiDAR, and Optical Imagery

Remote Sensing, 2015
The Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM) is one of the most complete and frequently used global-scale DEM products in various applications.
Yanjun Su, Qinghua Guo, Qin Ma, Wenkai Li   +3 more
doaj   +1 more source

ANALYSIS AND COMPARISON OF SRTM3 DEM AND ASTER GDEM V2 [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Global Geographic Information Resources Construction and Maintenance Renewal Project is in urgent need of digital elevation model worldwide. At present, the errors of ASTER GDEMv2 and SRTM3 DEM data widely used are unevenly distributed.
J. Shen, W. L. Han, L. B. Zhang, J. Ge
doaj   +1 more source

The Developmental Eye Movement Test as a Diagnostic Aid in Cerebral Visual Impairment

Frontiers in Human Neuroscience, 2021
The symptoms that characterize children with cerebral visual impairments (CVI) are diverse, ranging from extensive behavioral or physical disabilities to subtle changes that can easily be missed. A correct diagnosis of CVI is therefore difficult to make,
Nouk Tanke, Annemiek D. Barsingerhorn, Annemiek D. Barsingerhorn, Jeroen Goossens, F. Nienke Boonstra, F. Nienke Boonstra, F. Nienke Boonstra   +6 more
doaj   +1 more source

Methods for specifying the target difference in a randomised controlled trial: the Difference ELicitation in TriAls (DELTA) Systematic Review [PDF]

, 2014
<b>Background</b><p></p> Randomised controlled trials (RCTs) are widely accepted as the preferred study design for evaluating healthcare interventions.
Vale, Luke D, Ramsay, Craig R, John D Norrie, Jonathan A Cook, Douglas G Altman, Adewuyi Temitope E., Cook, Jonathan, Brian Buckley (137185), Jenni Hislop, Cynthia Fraser (563535), Fayers, Peters, Gurung, Tara, Harvey, Ian M, Kirsten Harrild, Peter Fayers (398359), Buckley, Brian R., Cynthia Fraser, Tara Gurung (493516), Fayers Peter, Luke D. Vale (563533), Cook Jonathan A., Vale, Luke D., Fayers, Peter M., Cook, Jonathan A, Harvey Ian M., Altman Douglas G., Temitope E Adewuyi, Ian M Harvey, Craig R. Ramsay (122714), Ramsay Craig R., Ian M. Harvey (563538), Harrild Kirsten, Hislop, J. (Jennifer), Buckley Brian, Vale Luke D., Harvey, Ian M., Norrie, John D, Fraser, Cynthia, Peter Fayers, Fayers, Peter, Altman, Douglas G, Douglas G. Altman (62920), Gurung, T. (Tara), Ramsay, C. R. (Craig R.), Tara Gurung, Adewuyi, Temitope E, Brian Buckley, Altman, Douglas G., DELTA group, Jonathan A. Cook (122711), Adewuyi, Temitope E., Temitope E. Adewuyi (563532), John D. Norrie (563537), Norrie, John D., Norrie John D., Ramsay, Craig R., Buckley, Brian, Altman, Douglas, Andrew H Briggs, Vale, L. (Luke), Jenni Hislop (563531), Fraser Cynthia, Gurung Tara, Cook, Jonathan A., Dr., Briggs, Andrew H., Craig R Ramsay, Hislop, Jenni, Briggs Andrew H., Hislop Jenni, Briggs, Andrew H, Harrild, Kirsten, Kirsten Harrild (563534), Andrew H. Briggs (563536), Cook, Jonathan A., Luke D Vale   +74 more
core   +1 more source

RELATIVE ERROR EVALUATION TO TYPICAL OPEN GLOBAL DEM DATASETS IN SHANXI PLATEAU OF CHINA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Produced by radar data or stereo remote sensing image pairs, global DEM datasets are one of the most important types for DEM data. Relative error relates to surface quality created by DEM data, so it relates to geomorphology and hydrologic applications ...
S. Zhao, S. Zhang, W. Cheng
doaj   +1 more source

A comparative analysis of different DEM interpolation methods

The Egyptian Journal of Remote Sensing and Space Science, 2013
Visualization of geospatial entities generally entails Digital Elevation models (DEMs) that are interpolated to establish three dimensional co-ordinates for entire terrain. The accuracy of generated terrain model depends on the interpolation mechanism adopted and hence it is needed to investigate the comparative performance of different approaches in ...
openaire   +4 more sources

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.
S. Pérez-Rodríguez, G. García, M.J. Lázaro, E. Pastor   +3 more
openaire   +2 more sources