Zobrazeno 1 - 10
of 3 109
pro vyhledávání: '"Ellipticity"'
Publikováno v:
Open Astronomy, Vol 33, Iss 1, Pp 051305-44 (2024)
In planetary surfaces, oblique impact events are commonplace, and their study holds significant importance for understanding planetary impact processes and aiding in the design of landers and impactors. Current research predominantly focuses on simpl
Externí odkaz:
https://doaj.org/article/99221d5582634ec3a20ee5430eb3df12
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-25 (2024)
Abstract To study borehole deformation under non-uniform horizontal principal stress in the deep strata, a prediction method for horizontal principal stress was developed based on the morphological parameters of boreholes, the deformation trajectory
Externí odkaz:
https://doaj.org/article/c5523e8041d24a7c87c23e1cbf5a1801
Autor:
V. I. Grits
Publikováno v:
Космические аппараты и технологии, Vol 7, Iss 4, Pp 259-267 (2023)
One of the main components of any spacecraft is antennas, which are used to receive and transmit information. An inherent stage of spacecraft production is ground experimental testing (GET) of both the complete spacecraft and its individual parts, in
Externí odkaz:
https://doaj.org/article/0defb131863f452bac540c0f8a341f8d
Autor:
Bei-Lei Zhang, Bin Ge
Publikováno v:
Electronic Research Archive, Vol 31, Iss 12, Pp 7349-7364 (2023)
This paper presents Calderón-Zygmund estimates for the weak solutions of a class of nonuniformly elliptic equations in $ \mathbb{R}^n $, which are obtained through the use of the iteration-covering method. More precisely, a global Calderón-Zygmund
Externí odkaz:
https://doaj.org/article/1aa4e5d48a68465181b3ebe3dc509f2a
Autor:
ChangYi Xu, Yan Jiang
Publikováno v:
Earth and Planetary Physics, Vol 7, Iss 6, Pp 615-619 (2023)
The principal moments of inertia (PMIs) with the principal axes are usually taken as the dynamic figure parameters of Mars; they can be deduced from satellite-observed degree-two gravitational potentials in recent global gravity models and from the d
Externí odkaz:
https://doaj.org/article/60d619b34aa64ee4bf5077b176acbaed
Akademický článek
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Publikováno v:
Results in Physics, Vol 57, Iss , Pp 107398- (2024)
Multifunctional THz meta-devices are the demand of modern communication systems and have received a lot of attention recently. Most studies have concentrated on either linear-to-linear or linear-to-circular polarization conversion. However, to simult
Externí odkaz:
https://doaj.org/article/bfa7a8175a45476d8e92e5fe19d364cf
Autor:
Peter Bella, Mathias Schäffner
Publikováno v:
Mathematics in Engineering, Vol 5, Iss 5, Pp 1-20 (2023)
We study local boundedness for subsolutions of nonlinear nonuniformly elliptic equations whose prototype is given by $ \nabla \cdot (\lambda |\nabla u|^{p-2}\nabla u) = 0 $, where the variable coefficient $ 0\leq\lambda $ and its inverse $ \lambda^{-
Externí odkaz:
https://doaj.org/article/7314d8025e6a4904a1afefdec93b2de3
Autor:
Sergey E. Mikhailov
Publikováno v:
Mathematics, Vol 12, Iss 12, p 1817 (2024)
We consider evolution (non-stationary) spatially-periodic solutions to the n-dimensional non-linear Navier–Stokes equations of anisotropic fluids with the viscosity coefficient tensor variable in spatial coordinates and time and satisfying the rela
Externí odkaz:
https://doaj.org/article/ad6ea652bb624cbc89b3795540635d84
Akademický článek
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