Results 111 to 120 of about 14,433 (200)

How Do Nematode Communities and Soil Properties Interact in Riparian Areas of Caatinga Under Native Vegetation and Agricultural Use?

open access: yesDiversity
Global interest in nematode communities and their ecological relationships as unique and complex soil ecosystems has remarkably increased in recent years.
Juliana M. M. de Melo   +5 more
doaj   +1 more source

Mechanical Characteristics Analysis and Structural Optimization of Wheeled Multifunctional Motorized Crossing Frame

open access: yesApplied Sciences
Wheeled multifunctional motorized crossing frames represent a new type of crossing equipment for high-voltage transmission line construction. The initial design is too conservative, having a large safety margin and high material redundancy. Therefore, it
Shuang Wang   +5 more
doaj   +1 more source

Reliability-based design optimization of shells with uncertain geometry using adaptive Kriging metamodels

open access: yes, 2017
Optimal design under uncertainty has gained much attention in the past ten years due to the ever increasing need for manufacturers to build robust systems at the lowest cost.
Bourinet, J. -M.   +2 more
core  

Geostatistics for functional data: an ordinary kriging approach

open access: yes, 2007
We present a methodology to perform spatial prediction when measured data are curves. In particular, we propose both an estimator of the spatial correlation and a functional kriging predictor. We adapt an optimization criterium used in multi- variable spatial prediction in order to estimate the kriging parameters.
Giraldo, Ramón   +2 more
openaire   +1 more source

GAMs and functional kriging for air quality data

open access: yes, 2016
Data having spatio-temporal structure are often observed in environmental sciences. They may be considered as discrete observations from curves along time and/or space and treated as functional. Generalized Additive Models (GAMs) represent a useful tool for modelling, for example, as pollutant concentrations describing their spatial and/or temporal ...
DI SALVO, Francesca   +2 more
openaire   +1 more source

Estimation of Spatial Coherency Functions for Kriging of Spatial Data

open access: yesJournal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, 2016
In order to apply Kriging methods for geostatistics of spatial data, an estimation of spatial coherency functions is required priorly based on the spatial distance between measurement points. In the study, the typical coherency functions, such as semi-variogram, homeogram, and covariance function, were estimated using the national geoid model. The test
openaire   +2 more sources

Granger causality between energy use and economic growth in France with using geostatistical models [PDF]

open access: yes
This paper introduces a new way for investigating linear and nonlinear Granger causality between energy use and economic growth in France over the period 1960_2005 with using geostatistical models (kiriging and IDW).
Amiri, Arshia, Zibaei, Mansour
core   +1 more source

Application of Moving Kriging Shape Functions on Plate Problems

open access: yesNUST Journal of Engineering Sciences, 2008
The Moving Kriging (MK) interpolation was recently proposed as a superior substitution of the Moving Least Square (MLS) approximation in the construction of shape functions for the Element-Free Galerkin Method (EFGM). Although Kriging is already a very well­ known geo-statistical technique for spatial interpolation in geology and mining, it has only ...
Shazim Ali Memon   +2 more
openaire   +1 more source

Spatial downscaling of multivariate disease risk. [PDF]

open access: yesInt J Health Geogr
Payares-Garcia D   +3 more
europepmc   +1 more source

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