Results 11 to 20 of about 31,181 (267)

Relocation and focal mechanisms of the 2021 Wuzhong-Lingwu ML3.6 seismic swarm

地震科学进展, 2022
From July 18 to August 7 in 2021, a significant activity of ML3.6 earthquake swarm occurred in Wuzhong-Lingwu area, Ningxia. In this paper, the earthquake swarm are relocated using the multi-step locating method.
Yingcai Xu, Xianwei Zeng, Guofu Luo
doaj   +1 more source

Source parameters of the MS4.0 Lingwu earthquake on November 18th, 2021

地球与行星物理论评, 2022
An MS4.0 earthquake occurred in Lingwu, Yinchuan City, Ningxia Hui Autonomous Region at 20:42:54 BJT on November 18th, 2021. It was felt by almost all people in Lingwu and its surrounding area and attracted considerable concern in the society.
Yingcai Xu, Xianwei Zeng
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Investigation of the modular building metal frame nodal connection rotational stiffness [PDF]

E3S Web of Conferences, 2021
The research subject is the rotational stiffness of the modular building metal frame nodal connection. The stiffness of nodal connections has a significant impact on the results of calculating the load-bearing frame of a modular building.
Shirokov Vyacheslav, Veremeenko Oleg, Alpatov Vadim   +2 more
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Numerical Solutions of Inverse Nodal Problems for a Boundary Value Problem

Mathematics, 2022
In this paper, we study inverse nodal problems for a boundary value problem. A uniqueness result for the potential function and a reconstruction method are obtained.
Yong Tang, Haoze Ni, Fei Song, Yuping Wang   +3 more
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A reactive algorithm for deducing nodal forwarding behavior in a multihop ad-hoc wireless network in the presence of errors [PDF]

International Journal of Electronics and Telecommunications, 2020
A novel algorithm is presented to deduce individual nodal forwarding behavior from standard end-to-end acknowledgments. The algorithm is based on a well-established mathematical method and is robust to network related errors and nodal behavior changes ...
Karol Rydzewski, Jerzy Konorski
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Normative expression and accurate understanding of focal mechanism parameters

Geosystems and Geoenvironment, 2023
This paper aims at the understanding of the relationship between the upper and lower hemisphere projection maps of the focal sphere, the correct reading of the focal mechanism parameters on the projection diagram, and to investigate if there is ...
Xuecan Jia, Shengle Li, Zhumei Liu, Chuan Gong   +3 more
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Nonlinear nonhomogeneous Neumann eigenvalue problems

Electronic Journal of Qualitative Theory of Differential Equations, 2015
We consider a nonlinear parametric Neumann problem driven by a nonhomogeneous differential operator with a reaction which is $(p-1)$-superlinear near $\pm\infty$ and exhibits concave terms near zero.
Pasquale Candito, Roberto Livrea, Nikolaos Papageorgiou   +2 more
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NODAL SOLUTIONS OF NONLOCAL BOUNDARY VALUE PROBLEMS

Mathematical Modelling and Analysis, 2009
We study the nonlinear boundary value problem consisting of the second order differential equation on [a, b] and a boundary condition involving a Riemann‐Stieltjes integral. By relating it to the eigenvalues of a linear Sturm‐Liouville problem with a two‐point separated boundary condition, we obtain results on the existence and nonexistence of nodal ...
Chamberlain, John, Kong, Lingju, Kong, Qingkai   +2 more
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Nodal solutions for some singularly perturbed Dirichlet problems [PDF]

Transactions of the American Mathematical Society, 2011
Summary: We consider the equation \( -\varepsilon^2 \Delta u+u=f(u)\) in a bounded, smooth domain \( \Omega \subset \mathbb R^N\) with homogeneous Dirichlet boundary conditions. We prove the existence of nodal solutions with multiple peaks concentrating at different points of \( \Omega\).
Teresa D'Aprile, PISTOIA, Angela
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Nodal line structure of least energy nodal solutions for Lane–Emden problems

Comptes Rendus. Mathématique, 2009
In this Note, we consider the Lane–Emden problem −Δu=λ2|u|p−2u with Dirichlet boundary conditions, where the domain Ω is an open bounded subset of R2, λ2 is the second eigenvalue of −Δ, and p>2. We prove that, if Ω is C2 and convex, the nodal line intersects ∂Ω when p is close to 2. In contrast, we also exhibit a connected — but not simply connected
Grumiau, Christopher, Troestler, Christophe   +1 more
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