Results 81 to 90 of about 1,420,963 (277)

Free vibration and postbuckling of laminated composite Timoshenko beams

open access: yesScience and Engineering of Composite Materials, 2016
A numerical solution method was developed to investigate the postbuckling behavior and vibrations around the buckled configurations of symmetrically and unsymmetrically laminated composite Timoshenko beams subject to different boundary conditions.
Ansari Reza   +3 more
doaj   +1 more source

Quantization from Hamilton-Jacobi theory with a random constraint

open access: yes, 2012
We propose a method of quantization based on Hamilton-Jacobi theory in the presence of a random constraint due to the fluctuations of a set of hidden random variables.
Agung Budiyono   +18 more
core   +1 more source

Correlated Dual‐Gradient Electrodes Enabling Spatially Synchronized Sulfur Redox in High‐Mass‐Loading Li–S Batteries Under High Current Densities

open access: yesAdvanced Materials, EarlyView.
Coupling a dual‐gradient carbonized framework with Fe2O3/Fe‐N‐C catalytic sites enables spatially synchronized sulfur redox across the entire electrode thickness in high‐mass‐loading Li–S batteries. This synergistic structural–catalytic design effectively mitigates concentration, ohmic, and electrochemical polarization, thereby achieving high‐capacity ...
Yuxuan Zhang   +6 more
wiley   +1 more source

Complete CP-eigen bases of meson-baryon chiral lagrangian up to p 5-order

open access: yesJournal of High Energy Physics
Chiral perturbation theory describes the low energy dynamics of mesons and baryons in terms of the nonlinear Goldstone boson and fermion degrees of freedom. Through the Young tensor technique, we construct the on-shell operator bases for the meson-baryon
Chuan-Qiang Song, Hao Sun, Jiang-Hao Yu
doaj   +1 more source

Nonequilibrium Dynamics of the σ-Model Modes on the de Sitter Space

open access: yesAdvances in High Energy Physics, 2017
The two-dimensional σ-model with the de Sitter target space is locally canonic in the north pole diamond of the Penrose diagram in the cosmological gauge.
Ion V. Vancea
doaj   +1 more source

Asymptotics of optimal investment behavior under a risk process with two-sided jumps [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
We study an optimal investment control problem for an insurance company having two business branches, life annuity insurance and non-life insurance. The company can invest its surplus into a risk-free asset and a risky asset with the price dynamics given
Belkina, Tatiana Andreevna   +2 more
doaj   +1 more source

A vanishing theorem for operators in Fock space

open access: yes, 2011
We consider the bosonic Fock space over the Hilbert space of transversal vector fields in three dimensions. This space carries a canonical representation of the group of rotations.
D. Hasler   +9 more
core   +1 more source

Materials and System Design for Self‐Decision Bioelectronic Systems

open access: yesAdvanced Materials, EarlyView.
This review highlights how self‐decision bioelectronic systems integrate sensing, computation, and therapy into autonomous, closed‐loop platforms that continuously monitor and treat diseases, marking a major step toward intelligent, self‐regulating healthcare technologies.
Qiankun Zeng   +9 more
wiley   +1 more source

Bio‐Inspired Hierarchical Nanoreactor With Hetero‐Coordinated Fe–P–Co Bridges for Whole‐Pathway‐Regulated Electrocatalytic Oxygen Reduction

open access: yesAdvanced Materials, EarlyView.
A bioinspired Co‐doped Fe2P on N‐doped carbon with a hierarchical eucalyptus‐like nanoarchitecture is engineered to regulate oxygen across the entire electrochemical pathway, achieving a half‐wave potential of 0.938 V vs. RHE, sustaining 373 h of discharge in Al‐air batteries, and delivering an energy density of 3487 Wh/kg.
Qiaoling Xu   +7 more
wiley   +1 more source

Solutions of Helmholtz and Schrödinger Equations with Side Condition and Nonregular Separation of Variables

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
Olver and Rosenau studied group-invariant solutions of (generally nonlinear) partial differential equations through the imposition of a side condition. We apply a similar idea to the special case of finite-dimensional Hamiltonian systems, namely Hamilton-
Philip Broadbridge   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy