An Improved Nonlinear Aerodynamic Derivative Model of Aircraft at High Angles of Attack by Mi Baigang, Yu Jingyi

“…The classical aerodynamic derivative model is widely used in flight dynamics, but its application is extremely limited in cases with complicated nonlinear flows, especially at high angles of attack. …”
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On the Exact Solutions of Two (3+1)-Dimensional Nonlinear Differential Equations by Fanning Meng, Yongyi Gu

“…In this article, exact solutions of two (3+1)-dimensional nonlinear differential equations are derived by using the complex method. …”
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Analysis of Nonlinear Characteristic and Performance Continuity Reliability of Rolling Bearing Vibration by Cheng Li, Xia Xintao, Ye Liang

“…In order to analyze the relationship between the nonlinear characteristics and the performance continuity reliability of rolling bearing vibration, based on chaos theory, a new concept is proposed for continuity relation dimension to characterize the nonlinear characteristics of rolling bearing vibration. …”
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Adaptive Optimizing Control for Nonlinear Synchronous Generator System with Uncertain Disturbance by Guiyang Deng, Lianglun Cheng, Baojian Yang

“…In this paper, an adaptive optimizing control is proposed for nonlinear synchronous generator system with uncertain disturbance. …”
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Initial-Sensitive Dynamical Behaviors of a Class of Geometrically Nonlinear Oscillators by Bo Qin, Huilin Shang, Huimin Jiang

“…The results have some potential values in the design of geometrically nonlinear oscillators.…”
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Invariant sets for nonlinear evolution equations, Cauchy problems and periodic problems by Norimichi Hirano, Naoki Shioji

“…In the case of K≠D(A)¯, we study Cauchy problems and periodic problems for nonlinear evolution equation u(t)∈K, u′(t)+Au(t)∋f(t,u(t)), 0≤t≤T, where A isa maximal monotone operator on a Hilbert space H, K is a closed, convex subset of H, V is a subspace of H, and f:[0,T]×(K∩V)→H is of Carathéodory type.…”
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Eigenvalues and ranges for perturbations of nonlinear accretive and monotone operators in Banach spaces by Zhou Haiyun, Athanassios G. Kartsatos

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Elastic and nonlinear crack tip solutions comparison with respect to failure probability by Valery Shlyannikov, Andrey Tumanov, Natalia Boychenko

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Existence and Boundedness of Solutions for Nonlinear Volterra Difference Equations in Banach Spaces by Rigoberto Medina

“…We consider a class of nonlinear discrete-time Volterra equations in Banach spaces. …”
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Overview of research on fiber nonlinear equalization algorithm based on artificial intelligence by Yajie LI, Yongli ZHAO, Shoudong LIU, Jie ZHANG

Subjects: “…nonlinear equalization…”
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Uniqueness of nonlinear differential polynomials sharing simple and double 1-points by Indrajit Lahiri, Nintu Mandal

“…We prove two theorems on the uniqueness of nonlinear differential polynomials, one of which improves a result of Fang and Hong.…”
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Convergent Power Series of sech⁡(x) and Solutions to Nonlinear Differential Equations by U. Al Khawaja, Qasem M. Al-Mdallal

“…A straightforward application of this method is to solve analytically nonlinear differential equations, which we also illustrate here. …”
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Nonlinear Constitutive Model of High-Temperature Viscoelastic Deformation of Gussasphalt Concrete by Shunxian Zhang, Aimin Sha, Xu Lu, Wen Nie, Weixiong Li, Junjian Yan

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NONLINEAR CONTACT ANALYSIS OF THE MIDDLE PAN DUMBBELL PIN SCRAPER CONVEYOR by ZHANG DongSheng, YU HaiYang, JIANG JiaNing, HU DengGao

“…The ANSYS/ls-dyna software is used to simulate the nonlinear contact dynamics of the middle pan group and the dumbbell pin under the push-slip condition of the scraper conveyor. …”
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Nonlinear vibration analysis of cantilever beams: Analytical, numerical and experimental perspectives by Qamar Abbas, Rab Nawaz, Haseeb Yaqoob, Hafiz Muhammad Ali, Muhammad Musaddiq Jamil

Subjects: “…Nonlinear vibration analysis…”
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Nonlinear Extended Kalman Filter for Attitude Estimation of the Fixed-Wing UAV by Tang Xiaoqian, Zhao Feicheng, Tang Zhengbing, Wang Hongying

“…This research article designs two filtering algorithms for fixed-wing UAVs which are nonlinear for the attitude estimation. The filters are based on Kalman filters. …”
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Effect of Metal Dopant on Ninhydrin—Organic Nonlinear Optical Single Crystals by R. S. Sreenivasan, N. Kanagathara, G. Ezhamani, N. G. Renganathan, G. Anbalagan

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Eigenvalue Problem for Nonlinear Fractional Differential Equations with Integral Boundary Conditions by Guotao Wang, Sanyang Liu, Lihong Zhang

“…By employing known Guo-Krasnoselskii fixed point theorem, we investigate the eigenvalue interval for the existence and nonexistence of at least one positive solution of nonlinear fractional differential equation with integral boundary conditions.…”
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Nonlinear Transmission Optimization Design of the Mechanical Aircraft Engine Control System by Luo Yunhe, Zeng Xiaojie, Zhao Zheng

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Global attractor for the lattice dynamical system of a nonlinear Boussinesq equation by Ahmed Y. Abdallah

“…We will study the lattice dynamical system of a nonlinear Boussinesq equation. Our objective is to explore the existence of the global attractor for the solution semiflow of the introduced lattice system and to investigate its upper semicontinuity with respect to a sequence of finite-dimensional approximate systems. …”
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