Results 31 to 40 of about 9,456 (253)

Development of X-Band Geophysical Model Function for Sea Surface Wind Speed Retrieval with ASNARO-2

Atmosphere
In the present study, a new geophysical model function (GMF) is developed for the X-band synthetic aperture radar (SAR) on board the Advanced Satellite with New System Architecture for Observation-2 (ASNARO-2) to retrieve accurate offshore wind speeds ...
Yuko Takeyama, Shota Kurokawa
doaj   +1 more source

Efficient Filter Generation Based on Particle Swarm Optimization Algorithm

IEEE Access, 2021
The evaluation of Hankel integration is an important part in the interpretation of electromagnetic (EM) data, especially in physical and geophysical applications. The digital linear filter (DLF) method is commonly applied.
Liang Zeng, Jintai Li, Jianxin Liu, Rongwen Guo, Hang Chen, Rong Liu   +5 more
doaj   +1 more source

Automatic stochastic 3D clay fraction model from tTEM survey and borehole data

Scientific Reports, 2022
In most urbanized and agricultural areas of central Europe, the shallow underground is constituted of Quaternary deposits which are often the most extensively used layers (water pumping, shallow geothermic, material excavation).
Alexis Neven, Anders Vest Christiansen, Philippe Renard   +2 more
doaj   +1 more source

High‐Temperature Magnetic Field Mapping Using a Single‐Crystal Diamond MEMS Resonator Array

Advanced Science, EarlyView.
A single‐crystal diamond MEMS resonator array enables magnetic‐field reconstruction with millisecond response, nanotesla level magnetic noise, and stable operation up to 573 K. Two‐ and three‐dimensional magnetic field mapping are demonstrated using ΔEeffect sensing, highlighting the potential of diamond MEMS technology for hightemperature magnetic ...
Zilong Zhang, Keyun Gu, Satoshi Koizumi, Masaya Toda, Meiyong Liao   +4 more
wiley   +1 more source

Streamline and Isotherm Visual Analysis of Darcy–Forchheimer von Karman Spinning Flow of Maxwell Fluid Over a Stretching Disk With Quadratic Temperature‐Dependent Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This research paper provides an extensive study of the effects of Darcy–Forchheimer von‐Karman spinning flow of Maxwell fluid across a stretching disk including the effect of heat generation based on a nonlinear function of temperature. The flow system is influenced by thermal radiations and Arrhenius activation energy.
Ebrahem A. Algehyne, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Mustafa Bayram, Jihad Younis, Anwar Saeed   +6 more
wiley   +1 more source

Some Identification Methods of Mixed Model ARMA(1,1) and its Probabilistics Properties when Detetcting Random Error belong to Poisson Distribution [PDF]

المجلة العراقية للعلوم الاحصائية, 2005
Most of the time series that appear in many economical geophysical and otherphenomenas are driven by non-Gaussian random error (at), so the aim of this paper is to investigate some of the probabilistic properties of Gaussian and non-Gaussian mixed ...
doaj   +1 more source

Geophysical modelling with Colombeau functions: Microlocal properties and Zygmund regularity

, 2001
In global seismology Earth's properties of fractal nature occur. Zygmund classes appear as the most appropriate and systematic way to measure this local fractality. For the purpose of seismic wave propagation, we model the Earth's properties as Colombeau generalized functions.
Hörmann, Günther, De Hoop, Maarten
openaire   +3 more sources

Using the concept of a geophysical model function for the interpretation scatterometer data

Journal of Radio Electronics, 2022
Within the framework of a two-scale Bragg (resonant) scattering model, the relationship between the spatial characteristics of sea surface waves and the geophysical model function (GMF) is analyzed. The dependence of the GMF on the angle between the direction of sounding and the wind velocity vector is determined by the function of the angular ...
openaire   +1 more source

Leveraging Big Multitemporal Multisource Satellite Data and Artificial Intelligence for the Detection of Complex and Invisible Features: The Case of Extensive Irrigation Mapping

Archaeological Prospection, EarlyView.
ABSTRACT The detection of buried or obscured archaeological features remains a central challenge in landscape archaeology, particularly in the irrigated floodplains of Mesopotamia where levees and canals formed the basis of complex agrarian systems. This study presents a deep learning–based approach for the large‐scale, automated detection of ancient ...
Nazarij Buławka, Hector A. Orengo, Felipe Lumbreras Ruiz, Iban Berganzo‐Besga, Ekta Gupta   +4 more
wiley   +1 more source

Optimizing Strategies for Non‐Invasive Prospection of Settlements in the Intertidal Zone: A Case Study From the Centre of the Drowned Medieval Village of Tolsende (Scheldt Estuary, the Netherlands)

Archaeological Prospection, EarlyView.
ABSTRACT Medieval and early modern drowned villages in the intertidal zone of the Scheldt estuary (the Netherlands) constitute intriguing yet largely understudied components of north‐western Europe's underwater cultural heritage. Despite their high archaeological potential as time capsules of past settlement landscapes, research has remained limited ...
Jan Trachet, Sarah Bäumler, Stefan Krojer, Jeroen Verhegge, Wim De Clercq, Philippe De Smedt, Wouter H. Maes, Bente S. Majchczack, Immo Trinks, Dennis Wilken   +9 more
wiley   +1 more source