剪切流作用下超大型浮体的非线性动力响应
本文研究了垂向速度呈指数形式分布的有旋剪切流作用下浮体的非线性动力特性。引入流函数构建控制方程和非线性边界条件。对于浮体为无限长板情形,运用同伦分析方法,得到收敛的近似解析解。结果表明,顺水剪切流使得波峰更尖锐、波谷更平坦,而顺水剪切流的作用则相反;同向的行进波和剪切流使得波速增加,而波流反向时波速减小。
Right Linear Map Preserving the Left Spectrum of 2x2 Quaternion Matrices; Pp. 378–386
In this paper, the form of a right linear map preserving the left spectrum of quaternion matrices of order 2 is characterized. The obtained conclusion is different from the …
Deyu Duan
Calibration Transfer of Soil Total Carbon and Total Nitrogen between Two Different Types of Soils Based on Visible-Near-Infrared Reflectance Spectroscopy
Although visible-near-infrared spectroscopy can rapidly and accurately determine soil nutrients without sample destruction,some problems remain unresolved, such as the mismatch of …
Xue-Ying Li
基于超混沌的RBF神经网络图像自适应水印算法
为了更好地保护图像版权信息,本工作结合超混沌系统和RBF神经网络,提出一种基于超混沌的RBF神经网络模型加密算法,根据JND(最小可视觉误差)模型实现水印的自适应嵌入,并应用RBF神经网络进行水印信息盲检测。实验研究表明:该算法复杂度较低、容易实现,并且具有良好的安全性、不可感知性和鲁棒性。
Linear Map Preserving the Right Spectrum of Quaternion Matrices
Let and be a right quaternion linear map from the set of matrices over the quaternion division ring into itself such that the set of matrices over the complex field is invariant …
Deyu Duan
Domain-Decomposition Generalized Finite Difference Method for Stress Analysis in Multi-Layered Elastic Materials
The generalized finite difference method (GFDM) is a relatively new meshless method for the numerical solution of certain boundary value problems. The method uses the Taylor series …
Robust and Effective Mesh Denoising Using Sparse Regularization
Mesh denoising is of great practical importance in geometric analysis and processing. In this paper we develop a novel L0sparse regularization method to robustly and reliably …
Yong Zhao
Source and Origin of the Interfacial Dzyaloshinskii-Moriya Interaction in a Heavy-Metal|magnetic-Insulator Bilayer
The interfacial Dzyaloshinskii-Moriya interaction (iDMI) was observed in the bilayer consisting of a heavy metal and a ferromagnetic insulator such as Pt vertical bar Tm3Fe5O12 …
Yong Zhao
Moving Object Real-time Detection and Tracking Method Based on Improved Gaussian Mixture Model
In order to improve the reliability of moving objects detection and tracking, this paper presents a method for moving object real-time detection and tracking based on Vibe and …
