Results 11 to 20 of about 269,771 (219)

Calibration of discrete element parameters for simulating wheat crushing

open access: yesFood Science &Nutrition, Volume 11, Issue 12, Page 7751-7764, December 2023., 2023
The mechanical properties of wheat grains were measured and analyzed using discrete element software, which provided crucial data for their processing in a mill. The optimal parameters were calculated and incorporated into the EDEM model for computation, which resulted in a relative error of 1.6% between the calculated and observed values, confirming ...
Xuefeng Wang, Wenbin Wu, Huapo Jia
wiley   +1 more source

A Robust Channel Head Extraction Method Based on High‐Resolution Topographic Convergence, Suitable for Both Slowly and Fastly Eroding Landscapes

open access: yesJournal of Geophysical Research: Earth Surface, Volume 128, Issue 9, September 2023., 2023
Abstract Channel networks exert a key control on drainage basins shape and dynamics, including the transfer of water and sediments throughout basins, and thus hydrosedimentary hazards. Landscape dissection by channels results from the competition between hillslope processes and channelized erosion processes such as overland flow or debris flows.
Aude Lurin   +3 more
wiley   +1 more source

Contribution of bedrock structures to the bedrock surface topography and groundwater flow systems within deep glaciofluvial aquifers in Kurikka, Western Finland

open access: yesEarth Surface Processes and Landforms, Volume 48, Issue 10, Page 2039-2056, August 2023., 2023
We address the relationship between the bedrock structure and bedrock surface topography through conducting structural analysis of the bedrock within the main recharge area of the Kurikka aquifer. Based on the presented results, it is evident that the initial bedrock‐digital elevation model (DEM) with smooth elevation transitions from the elevated ...
Eemi Ruuska   +3 more
wiley   +1 more source

FEM–DEM modeling of pseudo static experiments on scaled‐down rockfill dams with dry stone pitching

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 47, Issue 5, Page 759-792, 10 April 2023., 2023
Abstract Rockfill dams with stone pitching are specific hydraulic structures generally built in the early XXth century where stones used to be hand‐placed without mortar to constitute the upward and downward dam faces. Few studies have been carried out to quantify the specific and critical role of the pitching in the dam stability against both static ...
Ali Haidar   +3 more
wiley   +1 more source

Mapping rill soil erosion in agricultural fields with UAV‐borne remote sensing data

open access: yesEarth Surface Processes and Landforms, Volume 48, Issue 3, Page 596-612, 15 March 2023., 2023
An automatic workflow is introduced to map erosion rills at field scale in UAV‐photogrammetry derived digital elevation models by considering topographic features and machine learning. Abstract Soil erosion by water is a main form of land degradation worldwide.
Radek Malinowski   +3 more
wiley   +1 more source

Influence of Grain‐Scale Properties on Localization Patterns and Slip Weakening Within Dense Granular Fault Gouges

open access: yesJournal of Geophysical Research: Solid Earth, Volume 128, Issue 3, March 2023., 2023
Abstract Fault zones are usually composed of a granular gouge, coming from the wear material of previous slips, which contributes to friction stability. When considering a mature enough fault zone that has already been sheared, different types of infill materials can be observed, from mineral cementation to matrix particles that can fill the remaining ...
N. Casas, G. Mollon, A. Daouadji
wiley   +1 more source

Urban road waterlogging risk assessment based on the source–pathway–receptor concept in Shenzhen, China

open access: yesJournal of Flood Risk Management, Volume 16, Issue 1, March 2023., 2023
Abstract Urban roads are especially vulnerable to waterlogging during rainfall events. Assessments of urban road waterlogging risk are critical for disaster prevention and mitigation. This paper presents a rapid and practical approach for assessing the risk of urban road waterlogging based on a source–pathway–receptor concept and a digital elevation ...
Dianchen Sun   +4 more
wiley   +1 more source

Spline quasi‐interpolation in the Bernstein basis and its application to digital elevation models

open access: yesMathematical Methods in the Applied Sciences, Volume 46, Issue 2, Page 1687-1698, 30 January 2023., 2023
A nonstandard low‐cost spline approximation method for approximating bivariate functions is constructed. It is applied for Digital Elevation approximation and then its accuracy in the downscaling process is studied.
Francisco J. Ariza‐López   +4 more
wiley   +1 more source

Search for the waterfalls in Ethiopia using remote sensing data

open access: yesТрансформация экосистем, 2021
Waterfalls are specific hydrological and hydrobiological objects that often serve as the natural obstacles for spreading of aquatic animal species, resulting as discontinuous range of these species.
Alexey V. Kutuzov
doaj   +1 more source

Individual Tree Position Extraction and Structural Parameter Retrieval Based on Airborne LiDAR Data: Performance Evaluation and Comparison of Four Algorithms

open access: yesRemote Sensing, 2020
Information for individual trees (e.g., position, treetop, height, crown width, and crown edge) is beneficial for forest monitoring and management.
Wei Chen, Haibing Xiang, Kazuyuki Moriya
doaj   +1 more source

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