Results 111 to 120 of about 10,613 (298)
InfoScience, EarlyView.Designing new polymers for applications such as sustainable plastics, biomaterials, and 3D printing has traditionally been slow and expensive, relying heavily on trial‐and‐error experiments. This review shows how polymer informatics—the integration of large polymer databases, machine‐learning models, and automated robotic synthesis—enables fast ...
Md. Saiful Islam +6 more
wiley +1 more source
A multigrid method for nonlinear eigenvalue problems [PDF]
SCIENTIA SINICA Mathematica, 2015 14 pages, 0 figure.
openaire +2 more sources
Artificial intelligence–driven decoupling structure–activity relationship for lithium‐ion batteries
InfoScience, EarlyView.Artificial intelligence can efferently accelerate the high‐throughput screening of battery materials, the analysis of multiphase mechanisms, and the precise prediction of capacity and cycle life. This review systematically summarizes the applications of machine learning (ML) in decoupling the complex structure‐activity relationships of lithium‐ion ...
Tao Wang +6 more
wiley +1 more source
Existence of Solutions of a Discrete Fourth-Order Boundary Value Problem
Discrete Dynamics in Nature and Society, 2010 Let a,b be two integers with b-a≥5 and let 𝕋2={a+2,a+3,…,b-2}. We show the existence of solutions for nonlinear fourth-order discrete boundary value problem Δ4u(t-2)=f(t,u(t), Δ2u(t-1)), t∈𝕋2, u(a+1)=u(b-1)=Δ2u(a)=Δ2u(b-2)=0 under a ...
Ruyun Ma, Chenghua Gao, Yongkui Chang
doaj +1 more source
Finite element approximation of the first eigenvalue of a nonlinear problem for some special domain
Electronic Journal of Qualitative Theory of Differential Equations, 2000 In this paper we present a method for the numerical approximation of the smallest eigenvalue of a nonlinear eigenvalue problem using the finite element method.
Gabriella Bognár
doaj +1 more source
Positive solutions for some indefinite nonlinear eigenvalue elliptic problems with Robin boundary conditions [PDF]
, 2015 We consider a nonlinear eigenvalue problem with indefinite weight under Robin boundary condition. We prove the existence and multiplicity of positive solutions.
Antonio Suárez +3 more
core +1 more source
Journal of Adolescence, EarlyView.ABSTRACT Introduction Following rapid iterations in media technologies, Chinese millennials (born between 1980 and 1995) find themselves in a paradoxical state where digital saturation exists alongside fatigue, making them central practitioners of digital minimalist behavior.
Chao Zhang, Yinze Hao, Jingwen Li
wiley +1 more source
Positive solutions of singular fourth-order three-point eigenvalue problem
四川大学学报. 自然科学版, 2017 In this paper we investigate the problem of existence of positive solutions for the nonlinear singular fourth-order three-point eigenvalue problem u^{(4)}(t)=\lambda a(t)f(t,u(t)),t\in [0,1], u(0)=u'(\eta)=u''(1)=u'''(0)=0, where \lambda is a positive ...
DA Ju-Xia, HAN Xiao-Ling
doaj
Nonlinear homogeneous eigenvalue problem in $R^N$: nonstandard variational approach [PDF]
, 1997 summary:The nonlinear eigenvalue problem for p-Laplacian $$ \cases - \operatorname{div} (a(x) |\nabla u|^{p-2} \nabla u) = \lambda g (x) |u|^{p-2} u \text{ in } \Bbb R^N, \ u >0 \text{ in } \Bbb R^N, \mathop{\lim}\limits_{|x|\to \infty} u(x) = 0 ...
Drábek, Pavel +2 more
core
Revisiting EWMA in High‐Frequency‐Based Portfolio Optimization: A Comparative Assessment
Journal of Applied Econometrics, EarlyView.ABSTRACT This paper compares the statistical and economic performance of state‐of‐the‐art high‐frequency (HF) based multivariate volatility models with a simpler, widely used alternative, the Exponentially Weighted Moving Average (EWMA) filter. Using over two decades of 100 U.S.
Laura Capera Romero, Anne Opschoor
wiley +1 more source