Results 91 to 100 of about 917,096 (229)

Quantification of airfoil geometry-induced aerodynamic uncertainties - comparison of approaches

, 2016
Uncertainty quantification in aerodynamic simulations calls for efficient numerical methods since it is computationally expensive, especially for the uncertainties caused by random geometry variations which involve a large number of variables. This paper
Litvinenko, Alexander, Liu, Dishi, Schillings, Claudia, Schulz, Volker   +3 more
core   +1 more source

Position of Fingerprint Location based on Improved Universal Kriging Interpolation Method

International Journal of Performability Engineering, 2019
The accuracy of fingerprint databases is very important to position fingerprint locations. However, due to the measurement of the received signal strength cost and artificial constraints, the measured RSSI is limited, resulting in insufficient accuracy ...
Zhongwen Wang, Ge Xin, Ruizhen Duan, Mingshan Chi   +3 more
semanticscholar   +1 more source

Linking Spatial Stream Network and Site Occupancy Models to Predict the Distribution of Arctic Grayling in a Mountainous Watershed

Freshwater Biology, Volume 70, Issue 12, December 2025.
ABSTRACT Temperature is a critical abiotic factor driving the distribution of aquatic ectotherms in thermally heterogenous stream networks. However, comprehensive analyses of co‐located stream temperature and ectotherm telemetry data at ecologically pertinent spatiotemporal scales are not available.
Bryce O'Connor, Joseph R. Bottoms, Marie Auger‐Methé, David A. Patterson, Michael Power, J. Mark Shrimpton, Steven J. Cooke, Eduardo G. Martins   +7 more
wiley   +1 more source

Mathematical aspects of the kriging applied on landslide in Halenkovice (Czech Republic)

Open Geosciences, 2016
Kriging is one of the geostatistical techniques for spatial data analysis that is usually used for a modelling of natural phenomena or a creation of digital elevation models.
Zůvala Robert, Fišerová Eva, Marek Lukáš   +2 more
doaj   +1 more source

Constructing Isoscapes of δ13C, δ15N and δ34S Baselines Within a River System: A Spatial Stream Network Modelling Approach

Freshwater Biology, Volume 70, Issue 12, December 2025.
ABSTRACT Stable isotopes of carbon (δ13C), nitrogen (δ15N), and sulphur (δ34S) provide insights into freshwater food webs, but spatial variation in values of organisms at lower trophic levels often complicate interpretations. This is especially true in river ecosystems, in which hierarchical networks, directional flows, and aquatic‐terrestrial linkages
Selina Al‐Nazzal, Aaron T. Fisk, Marisa T. ValeCruz, Reid G. Swanson, Peter B. McIntyre, Gregory R. Jacobs   +5 more
wiley   +1 more source

Investigation of relationship between particulate matter (PM2.5) and meteorological parameters in Isfahan, Iran

Journal of Air Pollution and Health, 2020
Introduction: Estimating air pollution levels in areas with no measurements is a major concern in health-related studies. Therefore, the aim of this study was to investigate the amount of exposure to particulate matter below 2.5 µ (PM2.5) in the ...
Majid Kermani, Ahmad Jonidi Jafari, Mitra Gholami Mitra Gholami, Mahdi Farzadkia, Hossein Arfaeinia, Abbas Shahsavani, Abbas Norouzian, Mohsen Dowlati, Farzad Fanaei   +8 more
doaj   +1 more source

Spatial analyses of groundwater levels using universal kriging

Journal of Earth System Science, 2007
For water levels, generally a non-stationary variable, the technique of universal kriging is applied in preference to ordinary kriging as the interpolation method. Each set of data in every sector can fit different empirical semivariogram models since they have different spatial structures.
Gundogdu, KEMAL SULHİ, Guney, Ibrahim
openaire   +4 more sources

Effect of Two Geologically Distinct Amazonian Rivers in Shaping Forest Understorey Bird Assemblages

Journal of Biogeography, Volume 52, Issue 12, December 2025.
ABSTRACT Aim The effects of rivers as barriers for species dispersal can be expected to vary according to both species traits and the characteristics of rivers themselves. In this context, our aim was to investigate dissimilarities in species composition across opposite banks of two major Amazonian rivers, the Juruá and the Tapajós, and relate them to ...
M. F. A. Maximiano, C. C. Ribas, H. Tuomisto, G. Zuquim, P. L. Maia‐Braga, C. A. Peres   +5 more
wiley   +1 more source

Methodology for generating diverse geotechnical datasets using Monte Carlo simulation and genetic algorithms

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 29, Page 5494-5511, 9 December 2025.
Abstract The reliability of machine learning heavily depends on training data; however, in the field of geotechnical engineering, it is challenging to obtain diverse datasets due to economic and accessibility limitations. The aim of this study is to propose a method for generating data for use in the training phase of machine learning by combining ...
Junghee Park, Hyung‐Koo Yoon
wiley   +1 more source

Intercomparison of Daily Maximum and Minimum Temperature Gridded Products Over Mainland Spain

International Journal of Climatology, Volume 45, Issue 14, 30 November 2025.
Extreme event of min. temperature occurred between January 26th and February 2nd 2005. Observational uncertainty is greater for minimum than for maximum temperatures, although it depends on the analysis dimension considered, so intercomparison analyses are needed.
Sixto Herrera, Fidel González Rouco, Roberto Serrano‐Notivoli, Juan Luís Garrido, Santiago Beguería, José M. Gutiérrez, Pere Quintana‐Seguí, Maialen Iturbide, Esteban Rodríguez, Ana Morata, Candelas Peral   +10 more
wiley   +1 more source