Results 11 to 20 of about 134,367 (268)

One-degree resolution mascon solution over Antarctic derived from GRACE Level-2 data

open access: yesFrontiers in Earth Science, 2023
The mass loss of the Antarctic Ice Sheet (AIS) is an important contributor to global sea-level rise in response to the warming ocean and atmospheric temperatures as well as the changes in current systems and precipitation patterns.
Wei Wang   +3 more
doaj   +1 more source

Novel Strategy for Accurate Locating of Voltage Sag Sources in Smart Distribution Networks with Inverter-Interfaced Distributed Generators

open access: yesEnergies, 2017
With the aid of power quality monitoring systems (PQMSs), accurate locating of voltage sag sources, which has important significance for guiding maintenance personnel in finding and repairing faults as well as improving power supply reliability, has been
Rusi Chen, Tao Lin, Ruyu Bi, Xialing Xu
doaj   +1 more source

Unmixing of Magnetic Hysteresis Loops Through a Modified Gamma‐Cauchy Exponential Model

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Quantifying the contributions of distinct mineral populations in bulk magnetic experiments greatly enhances the analysis of environmental and rock magnetism studies.
U. D. Bellon   +2 more
doaj   +1 more source

Estimating the Net Magnetic Moment of Geological Samples From Planar Field Maps Using Multipoles

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Recent advances in magnetic microscopy have enabled studies of geological samples whose weak and spatially nonuniform magnetizations were previously inaccessible to standard magnetometry techniques.
Eduardo A. Lima   +4 more
doaj   +1 more source

Inverse Unit Teissier Distribution: Theory and Practical Examples

open access: yesAxioms, 2023
In this paper, we emphasize a new one-parameter distribution with support as [1,+∞). It is constructed from the inverse method applied to an understudied one-parameter unit distribution, the unit Teissier distribution.
Najwan Alsadat   +5 more
doaj   +1 more source

A theory of truncated inverse sampling [PDF]

open access: yesSequential Analysis, 2018
In this paper, we have established a new framework of truncated inverse sampling for estimating mean values of non-negative random variables such as binomial, Poisson, hyper-geometrical, and bounded variables. We have derived explicit formulas and computational methods for designing sampling schemes to ensure prescribed levels of precision and ...
openaire   +2 more sources

Direct spectra of Bishop spaces and their limits [PDF]

open access: yesLogical Methods in Computer Science, 2021
We apply fundamental notions of Bishop set theory (BST), an informal theory that complements Bishop's theory of sets, to the theory of Bishop spaces, a function-theoretic approach to constructive topology.
Iosif Petrakis
doaj   +1 more source

Imaging of fast moving electron-density structures in the polar cap

open access: yesAnnals of Geophysics, 2007
The imaging of fast-moving electron-density structures in the polar cap presents a unique set of challenges that are not encountered in other ionospheric imaging problems.
C. N. Mitchell, P. S. J. Spencer
doaj   +1 more source

Tomographic Experiments for Defining the 3D Velocity Model of an Unstable Rock Slope to Support Microseismic Event Interpretation

open access: yesGeosciences, 2020
To monitor the stability of a mountain slope in northern Italy, microseismic monitoring technique has been used since 2013. Locating microseismic events is a basic step of this technique.
Zhiyong Zhang   +3 more
doaj   +1 more source

Inverse transport theory of photoacoustics [PDF]

open access: yesInverse Problems, 2010
We consider the reconstruction of optical parameters in a domain of interest from photoacoustic data. Photoacoustic tomography (PAT) radiates high frequency electromagnetic waves into the domain and measures acoustic signals emitted by the resulting thermal expansion. Acoustic signals are then used to construct the deposited thermal energy map.
Bal, Guillaume   +2 more
openaire   +2 more sources

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