具有双连续微纳结构的软物质材料广泛存在自然界中,同时在膜分离等领域有重要的用途。利用双连续微乳化以及液-液旋节线相分离形成的三维网络结构是构筑具有连续贯通孔道的聚合物材料的常规手段。然而,所制得的聚...
阅读全文NIST recommends that anyone relying on SHA-1 for security switch to using the more secure SHA-2 and SHA-3 groups of algorithms. Credit: B. Hayes/NIST The SHA-1 algorithm, one of the first widely used ...
阅读全文In this paper, we consider output regulation for a 1-d heat equation where the disturbances generated from an unknown finite-dimensional exosystem enter all possible channels. We adopt adaptive ob...
阅读全文This article investigates observability of Boolean control networks (BCNs) and probabilistic Boolean networks (PBNs). First, weak observability of BCNs is discussed via the nonaugmented approach. ...
阅读全文We are concerned with the global existence theory for spherically symmetric solutions of the multidimensional compressible Euler equations with large initial data of positive far-field density so ...
阅读全文Machine learning has been successfully applied to various fields in computational science and engineering. In this paper, we propose interfaced neural networks (INNs) to solve interface problems w...
阅读全文This paper is concerned with the asymptotic stability of a composite wave of two viscous shocks under spatially periodic perturbations for the 1-d full compressible Navier--Stokes equations. It is...
阅读全文The main difficulty in studying numerical method for stochastic evolution equations (SEEs) lies in the treatment of the time discretization (J. Printems. [ESAIM Math. Model. Numer. Anal. (2001)])....
阅读全文A line search penalty-free sequential quadratic programming method is proposed for nonlinear equality-constrained optimization. Generally, feasible directions are used to minimize the measurement ...
阅读全文Limited-aperture data brings great challenge for inverse scattering problems. The limited-aperture problem we are particularly interested in is the limited-aperture “backscattering” problem wher...
阅读全文Many nonlocal models have adopted Euclidean balls as the nonlocal interaction neighborhoods. When solving them numerically, it is sometimes convenient to adopt polygonal approximations of such bal...
阅读全文This paper deals with, in the framework of absolute stability, boundary stabilization for a nonlinear axially moving beam under boundary velocity feedback controls. The nonlinear boundary control ...
阅读全文This paper is concerned with the factorization and equivalence problems of multivariate polynomial matrices. We present some new criteria for the existence of matrix factorizations for a class of ...
阅读全文This paper considers polynomial optimization with unbounded sets. We give a homogenization formulation and propose a hierarchy of Moment-SOS relaxations to solve it. Under the assumptions that the...
阅读全文Solving evolutionary equations in a parallel-in-time manner is an attractive topic. The iterative algorithm based on the block $\alpha$-circulant preconditioning technique has shown promising adva...
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