Results 131 to 140 of about 1,303,815 (271)

Existence of solutions to Burgers equations in a non-parabolic domain

open access: yesElectronic Journal of Differential Equations, 2018
In this article, we study the semilinear Burgers equation with time variable coefficients, subject to boundary condition in a non-parabolic domain. Some assumptions on the boundary of the domain and on the coefficients of the equation will be imposed.
Yassine Benia, Boubaker-Khaled Sadallah
doaj  

Continuous and Large‐Scale: ELEANOR, the Soft Architected Arm Inspired by the Elephant Trunk

open access: yesAdvanced Intelligent Systems, EarlyView.
A large‐scale, architected continuum robot inspired by the macroscopic properties of the African elephant trunk achieves adaptive elephant‐like movements and whole‐body grasping. The results demonstrate that designing from the natural system’s macroscopic properties, rather than prescribing behaviors, provides a powerful strategy for developing ...
Giovanna A. Naselli   +8 more
wiley   +1 more source

Weak solutions for nonlocal evolution variational inequalities involving gradient constraints and variable exponent

open access: yesElectronic Journal of Differential Equations, 2013
In this article, we study a class of nonlocal quasilinear parabolic variational inequality involving $p(x)$-Laplacian operator and gradient constraint on a bounded domain.
Mingqi Xiang, Yongqiang Fu
doaj  

A singular perturbation result for a class of periodic-parabolic BVPs

open access: yesOpen Mathematics
In this article, we obtain a very sharp version of some singular perturbation results going back to Dancer and Hess [Behaviour of a semilinear periodic-parabolic problem when a parameter is small, Lecture Notes in Mathematics, Vol. 1450, Springer-Verlag,
Cano-Casanova Santiago   +2 more
doaj   +1 more source

Implicit methods for the simple wave equation [PDF]

open access: yes, 1984
A family of finite difference methods is developed for the numerical solution of the simple wave equation. Local truncation errors are cal- culated for each member of the family and each is analyzed for stability.
Tirmizi, S I A, Twizell, E H
core  

Two‐Photon Absorption in Perovskite Semiconductors

open access: yesAdvanced Physics Research, EarlyView.
The two‐photon absorption (TPA) models used for perovskite semiconductors were primarily developed for conventional semiconductors and neglect the unique perovskite band structure. We have developed a model for the perovskite TPA coefficient, incorporating the inter‐ and intra‐band transitions in the conduction band states.
David Ompong   +6 more
wiley   +1 more source

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

open access: yesThe Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza   +3 more
wiley   +1 more source

Metal nanostructure‐coupled label‐free localized surface plasmon resonance biosensors for rapid and sensitive disease diagnosis

open access: yesBMEMat, EarlyView.
LSPR biosensing enables rapid, sensitive, and low‐sample‐volume detection of biomarkers, with broad applications in diagnosing cancer, infectious, and chronic diseases. Advances in nanostructure design, micro/nanofabrication, and microfluidic integration have expanded the potential of LSPR sensors in biomedical diagnostics.
Zhaoxin Geng   +4 more
wiley   +1 more source

Journey to Net‐Zero and Investment in Renewable Energy: Evidence From Developed and Developing Countries

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines how geopolitical risk, high‐technology exports and the Paris Agreement shape investment in renewable energy across developed and developing economies. Drawing on structural contingency theory, we conceptualise renewable energy investment as a country‐level response to external contingencies and analyse a global panel of 100
Tianqi Luo   +5 more
wiley   +1 more source

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