Results 61 to 70 of about 101,580 (184)

Mechanism of inter-particle friction effect on 3D mechanical response of granular materials

open access: yesYantu gongcheng xuebao, 2020
The inter-particle friction is regarded as an important factor that affects the stress and deformation characteristics of granular materials. The existing researches mainly focus on the influences of inter-particle friction on the accumulation ...
YANG Shu-han 1, 2, ZHOU Wei 1, 2, MA Gang 1, 2, LIU Jia-ying 1, 2, QI Tian-qi 1, 2
doaj   +1 more source

Ambienti GIS per le Applicazioni Radio Elettriche

open access: yesGEOmedia, 2005
Tradizionalmente la principale fonte di dati territoriali era, e ancora rimane, la cartografia, che è però una rappresentazione a scala ridotta di zone generalmente limitate della superficie terrestre.
Vector Srl Vector Srl
doaj  

A quantitative procedure for building physiographic units supporting a global SOTER database

open access: yesHungarian Geographical Bulletin, 2010
Until recently, manual methods were used for delineating SOILSCAPE. The use of digital data sources, such as digital elevation models (DEM) and satellite data can speed up the completion of digital soil databases and improve the overall quality ...
Endre Dobos   +2 more
doaj  

Vertical Accuracy Assessment of Digital Elevation Models Generated by Sentinel 1A: A Case study: Eldabha, EGYPT [PDF]

open access: yesJES: Journal of Engineering Sciences
This research focuses on improving the vertical accuracy of Digital Elevation Models (DEMs) generated from Sentinel-1A satellite imagery. The study investigates the influence of Goldstein filtering, temporal baseline, and perpendicular baseline on DEM ...
Mohamed Besheer   +3 more
doaj   +1 more source

Creep Characteristics of Corn Straw Particles Simulated Based on Burgers Model

open access: yesBioResources, 2023
To simulate the creep characteristics of corn straw particles under uniaxial compression, a 6-level 2D model was created using PFC 2D software according to the actual uniaxial creep test, the grain size, and shape of corn straw particles.
Zhe Ma   +3 more
doaj  

Discrete element modeling study on CPT penetration of calcareous sand considering dual porosity structure

open access: yesYantu gongcheng xuebao
This paper introduces a discrete element numerical simulation method for calcareous sand particles that incorporates dual porosity structures. The method focuses on three key characteristics of calcareous sand in comparison to quartz sand: abundant dual ...
WU Kai 1, CHEN Junxu 1, LIU Songyu 1, SUN Weichen 2
doaj   +1 more source

Size effects of small-scale model tests on bearing capacity of strip foundation

open access: yesYantu gongcheng xuebao
The small-scale model test is an important method to study the bearing capacity in soil mechanics. However, the size effects of small-scale model will affect its quantitative results, so that the small-scale test can only be used for qualitative ...
WANG Yiwei , LIU Run , LIANG Chao
doaj   +1 more source

Assessment of erosion potential and infiltration capacity in the Kasnazan pond using morphometric analysis

open access: yesSulaimani Journal for Engineering Sciences
Evaluating morphometric characteristics is the most efficient technique to depict the hydrologic and physiographic features of river basins. The current study focuses on investigating the morphological study of the Kasnazan basin, which is located 10 km ...
Israa Diyar Ahmed   +3 more
doaj   +1 more source

Use of prohexadione-calcium, vitamin E, and glycerine for the reduction of frost injury in apple (Malus domestica) flowers and leaves

open access: yesEuropean Journal of Horticultural Science, 2004
E. Albrecht   +4 more
doaj   +1 more source

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