Results 31 to 40 of about 31,493 (191)

Conceptual hydrogeology model to Bajo Cauca antioqueño: a tropical aquifer system

Revista Facultad de Ingeniería Universidad de Antioquia, 2013
This paper presents a hydrogeology conceptual model of Bajo Cauca Antioqueño obtained from hydrogeology exploration work and geostatistics modeling.
Teresita Betancur, Oscar Mejia, Carlos Palacio   +2 more
doaj   +1 more source

Application of geostatistics in spatial analyses [PDF]

Glasnik Srpskog Geografskog Društva, 2007
During the last decade, the development of computational technique has influenced wider implementation of numerical methods in different software applications, which are oriented to processing, presentation, and analysis of spatial data.
Bajat Branislav, Blagojević Dragan
doaj   +1 more source

Spatial Random Field Models Inspired from Statistical Physics with Applications in the Geosciences

, 2006
The spatial structure of fluctuations in spatially inhomogeneous processes can be modeled in terms of Gibbs random fields. A local low energy estimator (LLEE) is proposed for the interpolation (prediction) of such processes at points where observations ...
Hristopulos, D. T.
core   +1 more source

A Guide to Bayesian Optimization in Bioprocess Engineering

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Bayesian optimization has become widely popular across various experimental sciences due to its favorable attributes: it can handle noisy data, perform well with relatively small data sets, and provide adaptive suggestions for sequential experimentation.
Maximilian Siska, Emma Pajak, Katrin Rosenthal, Antonio del Rio Chanona, Eric von Lieres, Laura M. Helleckes   +5 more
wiley   +1 more source

Spatial distribution of soil chemical properties in pasture and forest area

Pesquisa Agropecuária Tropical, 2014
The knowledge on spatial distribution of soil properties by means of geostatistics is important as an indicator for a better soil use and management. This study aimed at evaluating the spatial distribution of soil chemical properties, in a forest and ...
Renato Eleoterio de Aquino, José Marques Júnior, Milton Cesar Costa Campos, Ivanildo Amorim de Oliveira, Diego Silva Siqueira   +4 more
doaj   +1 more source

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

Deep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +3 more
wiley   +1 more source

Urban Landscape Structure of a Fast-Growing African City: The Case of Niamey (Niger)

Urban Science, 2019
Combining multivariable statistics and geostatistics with landscape metrics, we attempted to quantify the spatial pattern of urbanization in the city of Niamey, Niger.
Jean-Pierre Rossi, Gauthier Dobigny
doaj   +1 more source

Means and covariance functions for geostatistical compositional data: an axiomatic approach [PDF]

, 2017
This work focuses on the characterization of the central tendency of a sample of compositional data. It provides new results about theoretical properties of means and covariance functions for compositional data, with an axiomatic perspective.
A Kolmogorov, D Billheimer, Denis Allard, DJJ Walvoort, G Mateu-Figueras, H Wackernagel, J Aczél, J Aczél, J Aitchison, J Aitchison, J Aitchison, J Matkowski, JD Helterbrand, JJ Egozcue, JJ Egozcue, JL Scealy, JP Chilès, KL Arrow, N Cressie, P Bogaert, R Tolosana-Delgado, RF Shurtz, RY Liu, Thierry Marchant, V Pawlowksy-Glahn, V Pawlowksy-Glahn, WE Miller, WE Sharp, Y Vardi, Y Zuo   +29 more
core   +2 more sources

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

Deep Underground Science and Engineering, EarlyView.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su, Yong Fu, Miaomiao Sun, Kailin Ding, Ying Zhao   +4 more
wiley   +1 more source

Regional Adjustments to NGA‐West2 Ground‐Motion Models for Turkey

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This paper presents a ground‐motion model updating (GMMU) framework to adjust NGA‐West2 models for predicting a set of intensity measures in Turkey, including peak ground acceleration (PGA), peak ground velocity (PGV), and pseudo‐spectral acceleration (PSA) at periods ranging from 0.01 to 10 s. The GMMU framework integrates bias identification
Mao‐Xin Wang, Gang Wang
wiley   +1 more source