Results 21 to 30 of about 1,141,152 (233)

Development of a land stability index for land damage assessment: the case of a nickel mine, North Konawe, Indonesia

open access: yesJournal of Degraded and Mining Lands Management, 2022
Assessment of land damage has been included in several Indonesian government policies, but it tends to have zero dimensions or only one point in the year.
Baba Barus   +3 more
doaj   +1 more source

Magneto Sweep – A New Method for Characterizing the Viscoelastic Properties of Magneto-Rheological Fluids

open access: yesApplied Rheology, 2002
The viscoelastic properties of a magneto-rheological fluid can be variably controlled using a magnetic field. A new measuring method is introduced which is based on oscillatory tests.
Wollny Klaus   +2 more
doaj   +1 more source

Study on the technical parameters model of the functional components of cone crushers

open access: yesNonlinear Engineering, 2022
A cone crusher is a machine that crushes rock materials with high efficiency and low power consumption; it is one of the typical road construction equipment.
Yu Luo-jian, Tong Xin
doaj   +1 more source

Using apriori information in interferometric processing of high resolution sar data

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
The paper presents an analysis of approaches to using apriori information on relief to improve the quality of spaceborne SAR data interferometric processing.
V. A. Ushenkin, N. A. Egoshkin
doaj   +1 more source

Democracy Doesn’t Always Happen Over Night: Regime Change in Stages and Economic Growth [PDF]

open access: yes, 2021
We motivate and empirically analyse the idea that democratic regime change is not a dis-crete event but a two-stage process: in the first stage, autocracies enter into an ‘episode’ of political liberalization which can last for years or even decades; in ...
Eberhardt, Markus, Boese, Vanessa
core  

Modelling the spatial distribution of DEM Error

open access: yes, 2005
Assessment of a DEM’s quality is usually undertaken by deriving a measure of DEM accuracy – how close the DEM’s elevation values are to the true elevation.
Carlisle, Bruce
core   +1 more source

Coherent Markov Random Field-Based Unreliable DSM Areas Segmentation and Hierarchical Adaptive Surface Fitting for InSAR DEM Reconstruction

open access: yesSensors, 2020
A digital elevation model (DEM) can be obtained by removing ground objects, such as buildings, in a digital surface model (DSM) generated by the interferometric synthetic aperture radar (InSAR) system. However, the imaging mechanism will cause unreliable
Qian Qian   +3 more
doaj   +1 more source

DEM-based analysis of morphometric features in humid and hyper-arid environments using artificial neural network [PDF]

open access: yesDesert, 2009
This paper presents a robust approach using artificial neural networks in the form of a Self Organizing Map (SOM) as a semi-automatic method for analysis and identification of morphometric features in two completely different environments, the Man and ...
A.H Ehsani, F. Quiel
doaj   +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

The potential of global solar radiation in the Silesia region as a renewable source of energy

open access: yesEnvironmental & Socio-economic Studies, 2016
Historically, Silesia has been at the centre of the Polish coal industry for many years and thus has experienced poorer air quality compared to other voivodeships.
Waniek Katarzyna
doaj   +1 more source

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