Results 91 to 100 of about 41,613 (278)

Calculation of Probability Maps Directly from Ordinary Kriging Weights [PDF]

Geologia USP. Série Científica, 2010
Probability maps are useful to analyze ores or contaminants in soils and they are helpful to make a decision duringexploration work. These probability maps are usually derived from the indicator kriging approach.
Jorge Kazuo Yamamoto
doaj  

An adjoint for likelihood maximization

, 2009
The process of likelihood maximization can be found in many different areas of computational modelling. However, the construction of such models via likelihood maximization requires the solution of a difficult multi-modal optimization problem involving ...
Bressloff, Neil W., Andy J. Keane, Keane, Andy J., Holden, Carren, Alexander I J Forrester, Neil W Bressloff, Carren Holden, Forrester, Alexander I.J., Toal, David J.J.   +8 more
core   +1 more source

An Optimized Multi‐Stage Drainage Cannula Design for Venoarterial Extracorporeal Membrane Oxygenation

Artificial Organs, EarlyView.
This study utilized an extensive optimization involving n = 540 design of experiments to produce a superior drainage cannula design. Compared to the clinically used Maquet model, our optimized design demonstrated reduced blood stagnation volumes, increased cannula tip velocities, and higher upper body drainage, potentially minimizing risk of thrombosis
Avishka Wickramarachchi, Mehrdad Khamooshi, Aidan Burrell, Shaun D. Gregory   +3 more
wiley   +1 more source

Kriging-Based Atmospheric Phase Screen Compensation Incorporating Time-Series Similarity in Ground-Based Radar Interferometry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Accuracy of radar interferometry is often hindered by the atmospheric phase screen (APS). To address this limitation, the geostatistical approach known as Kriging has been employed to predict APS from sparse observations for compensation purposes.
Yuta Izumi, Giovanni Nico, Othmar Frey, Simone Baffelli, Irena Hajnsek, Motoyuki Sato   +5 more
doaj   +1 more source

Kriging Surrogate Models for Predicting the Complex Eigenvalues of Mechanical Systems Subjected to Friction-Induced Vibration

Shock and Vibration, 2016
This study focuses on the kriging based metamodeling for the prediction of parameter-dependent mode coupling instabilities. The high cost of the currently used parameter-dependent Complex Eigenvalue Analysis (CEA) has induced a growing need for ...
E. Denimal, L. Nechak, J.-J. Sinou, S. Nacivet   +3 more
doaj   +1 more source

COMBINING NEURAL NETWORKS AND GEOSTATISTICS FOR LANDSLIDE HAZARD ASSESSMENT OF SAN SALVADOR METROPOLITAN AREA, EL SALVADOR

Revista de Matemática: Teoría y Aplicaciones, 2017
This contribution describes the creation of a landslide hazard assessment model for San Salvador, a department in El Salvador. The analysis started with an aerial photointerpretation from Ministry of Environment and Natural Resources of El Salvador (MARN
Ricardo Ríos, Alexandre Ribó, Roberto Mejía, Giovanni Molina   +3 more
doaj   +1 more source

A New Approach to Transforming Airborne Electromagnetic Data into Models of Sediment Type

Groundwater, EarlyView.
A new methodology provides the relationship needed to transform electrical resistivity measurements from airborne electromagnetic surveys to sediment type. By accounting for the physics of the measurement and the quality of the driller's logs used in developing the transform, the method improves the accuracy of derived sediment type models.
Rebecca Prentice, Rosemary Knight, Peter Kitanidis   +2 more
wiley   +1 more source

Constrained optimization in simulation: a novel approach. [PDF]

This paper presents a novel heuristic for constrained optimization of random computer simulation models, in which one of the simulation outputs is selected as the objective to be minimized while the other outputs need to satisfy prespeci¯ed target values.
Van Nieuwenhuyse, Inneke, van Beers, W., Kleijnen, J.P.C.   +2 more
core   +2 more sources

Feasibility of Applying Kriging for Earthquake Ground Motion Intensity Measures in South Korea

Applied Sciences
Estimating ground motion parameters at an unsampled site is challenging for seismologists and engineers alike. An attempt is made to apply Kriging interpolation to estimate peak ground accelerations at specific nuclear power plant sites.
Eric Yee, Jung-ho Kim
doaj   +1 more source

Reconnaissance‐Scale Methods for the Identification of Groundwater Discharge to Streams

Groundwater Monitoring &Remediation, EarlyView.
Abstract Identifying groundwater discharge locations is critical for understanding and monitoring groundwater contributions to streams in terms of water quantity and quality. Streams and rivers are under increasing strain from factors, including increased urbanization, agricultural land use, groundwater extraction, and climate change, which can alter ...
Corey M. Zanatta, Andrew J. Wiebe, David L. Rudolph   +2 more
wiley   +1 more source