Results 11 to 20 of about 12,654 (214)

Spatial Prediction and Optimized Sampling Design for Sodium Concentration in Groundwater. [PDF]

open access: yesPLoS ONE, 2016
Sodium is an integral part of water, and its excessive amount in drinking water causes high blood pressure and hypertension. In the present paper, spatial distribution of sodium concentration in drinking water is modeled and optimized sampling designs ...
Erum Zahid   +6 more
doaj   +1 more source

Kriging Model for Time-Dependent Reliability: Accuracy Measure and Efficient Time-Dependent Reliability Analysis Method

open access: yesIEEE Access, 2020
As the performance function of a mechanical structure is usually based on time-consuming computer codes, predicting time-dependent reliability analysis requires a large number of costly simulations in engineering.
Yutao Yan   +3 more
doaj   +1 more source

Spatial Prediction of Real Sulfur Data Using the Ordinary Kriging Technique and Lognormal Kriging [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2022
This research deals with the spatial prediction process in order to obtain the optimal prediction when the data are distributed normally. In this paper, we used the ordinary kriging technique and the lognormal kriging after taking the logarithm of the ...
Najla Sedek
doaj   +1 more source

Application of geostatistical tools to assess geological uncertainty for Sinquyen Copper mine, Vietnam

open access: yesГорные науки и технологии, 2016
Geostatistics-based estimators, i.e. ordinary kriging and simple kriging, are state-of-the-art estimation techniques widely used in the mining industry.
Ngoc Luan Mai, Xuan Nam Bui
doaj   +1 more source

Metamodel-Assisted Multidisciplinary Design Optimization of a Radial Compressor

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2019
Kriging is increasingly used in metamodel-assisted design optimization. For expensive simulations; however, one can afford only a few samples to build the Kriging model, which consequently lacks prediction accuracy.
Mohamed H. Aissa, Tom Verstraete
doaj   +1 more source

Detailed mapping of soil texture of a paddy growing soil using multivariate geostatistical approaches

open access: yesTropical Agricultural Research, 2018
This study was conducted to explore performances of multivariate geostatistical techniques, co-kriging and regression kriging in contrast to univariate ordinary kriging, to generate detailed maps of soil texture by using proximally sensed apparent ...
R. A. A. S. Rathnayaka   +2 more
doaj   +1 more source

Comparison of sensitivity of interpolation methods by rain gauge network density [PDF]

open access: yesعلوم و مهندسی آبیاری
Different interpolation methods, each with their own strengths and weaknesses, are used to temporal and spatial estimation of precipitation. The accuracy of this estimate depends on the density of point data measured at rain gauge stations. In this study,
Amin Kanooni, Erfan Faraji Amogein
doaj   +1 more source

Assessment of Severity of Droughts Using Geostatistics Method(Case Study: Southern Iran) [PDF]

open access: yesDesert, 2013
Drought monitoring is a fundamental component of drought risk management. It is normally performed usingvarious drought indices that are effectively continuous functions of rainfall and other hydrometeorological variables.In many instances, drought ...
A. Nohegar, M. Heydarzadeh, A. Malekian
doaj   +1 more source

Fast Prediction of Multiple Parameters Related to Iced Airfoil Based on POD and Kriging Methods [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Ice accretion threatens aircraft safety. With the wide application of unmanned aerial vehicles (UAVs), the design of ice-tolerant UAVs has become a problem that must be solved.
J. Niu   +5 more
doaj   +1 more source

Mapping the topsoil pH and humus quality of forest soils in the North Bohemian Jizerské hory Mts. region with ordinary, universal, and regression kriging: cross-validation comparison

open access: yesSoil and Water Research, 2013
North Bohemia belongs to one of the most heavily industrialized and polluted regions in Europe. The enormous acid deposition which culminated in the 1970s has largely contributed to the accelerated acidification process in the soils and consequently to ...
Radim VAŠÁT   +4 more
doaj   +1 more source

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