Results 71 to 80 of about 78,859 (235)

Interpolation of ionospheric modalities using kriging, co-kriging and spatio-temporal kriging

, 2018
HF bandında çalışan uzak mesafeli iletişim sistemleri ve navigasyon sistemleri iyonküre içinden geçerken etkileşen sinyaller kullanmaktadırlar. Sistemlerin başarımını artırmak için iyonkürenin hassas olarak modellenmesi önem taşımaktadır. Sinyaller üzerinde oluşan gecikmeler sinyallerin frekansına ve yayılım anında sinyal yolu üzerindeki elektron ...
openaire   +3 more sources

Comparison of Conventional, Rake, and Sonar‐Based Biophysical Habitat Measurements in a Shallow Ontario River

River Research and Applications, EarlyView.
ABSTRACT Knowledge of habitat availability is critically important for the management and recovery of freshwater species. Quantifying habitat availability often requires fine‐scale sampling at point‐based locations across a large geographic extent, which can be laboursome.
Karl A. Lamothe, Jason Barnucz, D. Andrew R. Drake   +2 more
wiley   +1 more source

PEMETAAN DAYA DUKUNG FONDASI DANGKAL DI WILAYAH UNIVERSITAS JEMBER BERBASIS CPT (CONE PENETRATION TEST)

Rekayasa Sipil, 2020
This research aims to make a bearing capacity distribution map of shallow foundations (footplate), which is to provide convenience in terms of examining substructure buildings planned by the consultant by the owner.
Bagus Rahmat Hidayat, Paksitya Purnama Putra, Hernu Suyoso   +2 more
doaj   +1 more source

Bath Vibration During Open Eye Formation in a Physical Model of a Steelmaking Ladle

steel research international, EarlyView.
Using a physical model, this study shows that vibration measurements reliably predict open eye size in steelmaking ladles, offering a practical alternative to visual monitoring. Vessel vibrations stabilize faster than the open eye, except at high frequencies near the bottom.
Mika Pylvänäinen, Juhani Nissilä, Ville‐Valtteri Visuri, Aki Sorsa, Matias Hauru, Jouni Laurila, Toni Liedes   +6 more
wiley   +1 more source

Landscape factors influencing predation on capercaillie nests by two competing mesopredators: pine marten and red fox

Wildlife Biology, EarlyView.
Predation by pine martens Martes martes and red foxes Vulpes vulpes is an important factor influencing the population dynamics of capercaillie Tetrao urogallus. However, there is a knowledge gap regarding the relative effects of these mesopredators on the reproductive success of capercaillie. To better understand how various landscape factors influence
Siow Yan Jennifer Angoh, Scott Michael Brainerd, Olivier Devineau, Morten Odden, Torfinn Jahren   +4 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

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  

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

Ordinary kriging for on-demand average wind interpolation of in-situ wind sensor data

, 2009
We have developed a domain agnostic ordinary kriging algorithm accessible via a standards-based service-oriented architecture for sensor networks. We exploit the Open Geospatial Consortium (OGC) Sensor Web Enablement (SWE) standards.
Middleton, S.E., Veres, G., Zlatev, Z.
core