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Academic Articles & Research Papers
Showing 7 of 7 academic articles
S. B. Luthcke, T. C. Thomas, T. A. Pennington, T. W. Rebold et al. • Earth and Space Science
(2021)
Abstract ICESat‐2 science requirements are dependent on the accurate real‐time pointing control (i.e., geolocation control) and postprocessed geolocation knowledge of the laser altimeter surface returns. Prelaunch pointing alignment errors ...
DOAJ
Open Access (DOAJ)
DOI: 10.1029/2020EA001494
Eric Ngondiep • Heliyon
(2024)
This paper constructs a three-step second-order numerical approach for solving a mathematical model on the dynamic of corruption and poverty. The stability and error estimates of the proposed technique are analyzed using the L2-norm. The de...
DOAJ
Open Access (DOAJ)
DOI: 10.1016/j.heliyon.2024.e38236
Huilin Xu, Fanli Xu, Baoxia Wang • Axioms
(2026)
This paper addresses the Cauchy problem for the multi-dimensional modified Helmholtz equation, a classical and severely ill-posed problem. A truncated-kernel mollification method is proposed as an effective regularization approach. Both the...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/axioms15080593
Kaiwen Shi, Haiyan Su, Xinlong Feng • Entropy
(2022)
In this article, we mainly consider a first order penalty finite element method (PFEM) for the 2D/3D unsteady incompressible magnetohydrodynamic (MHD) equations. The penalty method applies a penalty term to relax the constraint “∇·u=0”, whi...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/e24101395
Ke Wang, Xiantao Li • Quantum
(2024)
Models for open quantum systems, which play important roles in electron transport problems and quantum computing, must take into account the interaction of the quantum system with the surrounding environment. Although such models can be der...
DOAJ
Open Access (DOAJ)
DOI: 10.22331/q-2024-07-11-1407
Klemen Istenič, Nuno Gracias, Aurélien Arnaubec, Javier Escartín et al. • Remote Sensing
(2019)
Rapid developments in the field of underwater photogrammetry have given scientists the ability to produce accurate 3-dimensional (3D) models which are now increasingly used in the representation and study of local areas of interest. This pa...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/rs11182093
Fan Yang, Ping Fan, Xiao-Xiao Li, Xin-Yi Ma • Mathematics
(2019)
In present paper, we deal with a backward diffusion problem for a time-fractional diffusion problem with a nonlinear source in a strip domain. We all know this nonlinear problem is severely ill-posed, i.e., the solution does not depend cont...
DOAJ
Open Access (DOAJ)
DOI: 10.3390/math7090865