Results 191 to 200 of about 1,590 (240)

A three-dimensional nonlinear finite element model for coupled vibration analysis of rotary steerable systems. [PDF]

Sci Rep
Shao K, Liu Y, Wang H, Xiao L, Zhou Z, Jia Z, Sun Q.   +6 more
europepmc   +1 more source

Regularity Estimates for Fully Nonlinear Dead‐Core Problems With a Hamiltonian Term

Mathematische Nachrichten, EarlyView.
ABSTRACT In this paper, we present a problem involving fully nonlinear elliptic operators with Hamiltonian, which can present a singularity or degenerate as the gradient approaches the origin. The model studied here, allows the appearance of plateau zones, i.e., unknown regions of the domain in which the non‐negative solutions vanishes.
Rafael R. Costa, Ginaldo S. Sá
wiley   +1 more source

Influence of substrate geometric nonlinearity on the performance of a hybrid galloping energy harvester with D-shape-sectioned bluff body. [PDF]

Sci Rep
Sun L, Song Z, Liu X.
europepmc   +1 more source

Cononsolvency‐Assisted Fabrication of Hydrogels and Microgels With Tunable Porosity, Diffusivity and Stiffness

Macromolecular Rapid Communications, EarlyView.
The cononsolvency of poly(dimethyl acrylamide‐co‐hydroxyethyl acrylamide) copolymers in water‐acetonitrile mixtures enables the synthesis of hydrogels with finely tuned porosity. Optimized for droplet‐based microfluidics, this approach facilitates the fabrication of porous microgels with tunable mechanical and diffusion properties, offering precise ...
Maria I. Pieper, Daniel D. Stöbener, Bernhard Häßel, Richard Hoogenboom, Andrij Pich   +4 more
wiley   +1 more source

Time-dependent Bivariational Principle: Theoretical Foundation for Real-Time Propagation Methods of Coupled-Cluster Type. [PDF]

J Phys Chem A
Kvaal S, Fredheim HR, Højlund MG, Pedersen TB.   +3 more
europepmc   +1 more source

Experimental Study on Polymer–Polymer Interfacial Thermal Resistance

Macromolecular Theory and Simulations, Volume 34, Issue 2, March 2025.
Interfacial thermal resistance (ITR) in polymer–polymer interfaces is experimentally measured in this paper by the multi‐layered bulk sample approach. Based on numerical simulation and experimental verification, new techniques of layer‐overlapping samples are developed.
Yinfeng Xia, Takushi Saito, Tatsuya Kawaguchi   +2 more
wiley   +1 more source

Designing Tailored Molecular Cavities Using Calix[5]arenes as Building Blocks. [PDF]

Chem Rec
Hirao T, Haino T.
europepmc   +1 more source

A Geometric Interpretation for the Algebraic Properties of Second‐Order Ordinary Differential Equations

Mathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6912-6917, April 2025.
ABSTRACT Nowadays, a substantial portion of investigations concerning the symmetry analysis of differential equations predominantly adhere to a framework comprising the following key procedures: (i) the derivation of symmetries, (ii) the determination of an optimal system, (iii) the utilization of these symmetries to construct invariants or ...
A. Paliathanasis, S. Moyo, P. G. L. Leach   +2 more
wiley   +1 more source

Hyperbolic Rotations With Hybrid Numbers

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper presents a geometric and algebraic analysis of hyperbolic hybrid numbers, which combine structural features of the complex, dual, and hyperbolic number systems. Based on the algebraic properties of the hybrid number set, hyperbolic rotations in both the plane and space are investigated.
İskender Öztürk, Hasan Çakır, Mustafa Özdemir   +2 more
wiley   +1 more source

Vibration Characteristics of Magnetostrictive Composite Cantilever Resonator with Nonlocal Effect. [PDF]

Sensors (Basel)
Xu Y, Shang X, Xu K.
europepmc   +1 more source