Results 91 to 100 of about 1,441 (286)
Global attractivity and oscillation in a nonlinear periodic delay difference equation [PDF]
, 2003 The existence of a periodic solution for a class of nonlinear delay difference equations with periodic coefficients is established. Some sufficient conditions for the global attractivity and oscillation about the periodic solutions are also ...
Zhan Zhou +3 more
core +1 more source
Journal of Applied Mathematics, 2014 By constructing a suitable Lyapunov functional, the global attractivity of positive periodic solutions for a delayed predator-prey system with diffusion and impulses is studied in this paper.
Yuanfu Shao, Xiaolan Xie, Zhixiang Ju
doaj +1 more source
Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures
Advanced Engineering Materials, EarlyView.We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann +2 more
wiley +1 more source
Global Attractivity of a Higher-Order Nonlinear Difference Equation [PDF]
, 2010 In this paper, we investigate the global attractivity of negative solutions of the nonlinear difference equation where A ∈ (−∞, 0), k is a positive integer and initial conditions x −k , · · · , x 0 are arbitrary real numbers.
Guo-Mei Tang, Xiu-Mei Jia
core
On the Recursive Sequence xn+1=A+xnp/xn−1p
Discrete Dynamics in Nature and Society, 2007 This paper studies the boundedness, global attractivity, and periodicity of the positive solutions of the difference equation xn+1=A+xnp/xn−1p, n∈ℕ0, with p,A∈(0,∞).
Stevo Stevic
doaj +1 more source
Advanced Engineering Materials, EarlyView.Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Global attractivity in a nonlinear difference equation
Electronic Journal of Differential Equations, 2007 In this paper, we study the asymptotic behavior of positive solutions of the nonlinear difference equation $$ x_{n+1}=x_n f(x_{n-k}), $$ where $f:[0,infty)o(0, infty)$ is a unimodal function, and $k$ is a nonnegative integer.
Chuanxi Qian, Yijun Sun
doaj
Advanced Engineering Materials, EarlyView.Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati +11 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source