Results 21 to 30 of about 703,218 (296)

An imprint method to produce surface asperities for EHL and RCF experiments

open access: yesMethodsX, 2021
A method was developed for creating single well-defined surface asperities using an imprint technique. The proposed method enables: • Creation of well-defined micrometre high asperities • Creation of asperities which survived more than 35 million EHL ...
Carl-Magnus Everitt   +2 more
doaj   +1 more source

Aerodynamic-Aeroacoustic Optimization of a Baseline Wing and Flap Configuration

open access: yesApplied Sciences, 2022
Optimization design was widely used in the high-lift device design process, and the aeroacoustic reduction characteristic is an important objective of the optimization.
Shengjun Ju   +5 more
doaj   +1 more source

Must a Hamiltonian be Hermitian? [PDF]

open access: yes, 2003
A consistent physical theory of quantum mechanics can be built on a complex Hamiltonian that is not Hermitian but instead satisfies the physical condition of space-time reflection symmetry (PT symmetry).
Bender, Carl M.   +2 more
core   +2 more sources

Large Amplitude Oscillatory Shear of the Prandtl Element Analysed by Fourier Transform Rheology

open access: yesApplied Rheology, 2014
This work contributes to the theory of strain controlled large amplitude oscillatory shear (LAOS) as well as modelling the key properties of type III behavior of Hyun, the decreasing storage modulus and a loss modulus with considerable maximum.
Boisly Martin   +3 more
doaj   +1 more source

Closed-form solutions for free vibration of rectangular nonlocal Mindlin plates with arbitrary homogeneous boundary conditions

open access: yesComposites Part C: Open Access, 2021
In this paper, an extended separation-of-variable (SOV) method is developed to achieve the closed-form solutions for free vibration of rectangular nonlocal Mindlin plates with arbitrary homogeneous boundary conditions.
Gen Li, Yufeng Xing, Zekun Wang
doaj   +1 more source

On the optical nonlinearity in the GeSbSe chalcogenide glasses

open access: yesMaterials Research Express, 2020
Chalcogenide glasses Ge _x Sb _40−x Se _60 with composition 12, 25 and 30 at.%, synthesized from elements with 5N purity (Ge, Sb, Se) by the conventional melt-quenching method were studied.
Nicoleta Nedelcu   +3 more
doaj   +1 more source

Shear Modulus of an Elastic Solid under External Pressure as a function of Temperature: The case of Helium

open access: yes, 2011
The energy of a dislocation loop in a continuum elastic solid under pressure is considered within the framework of classical mechanics. For a circular loop, this is a function with a maximum at pressures that are well within reach of experimental ...
A. F. Andreev   +10 more
core   +2 more sources

Fixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach

open access: yesScientific Reports, 2020
The fluid structure interaction analysis for structures exhibiting large deformations is carried out by using a strong coupling method, in which a fixed point method with Aitken’s dynamic relaxation is employed to accelerate convergence of the coupling ...
Mingliang Yu   +3 more
doaj   +1 more source

On-line microscopic imaging investigation on oil charging characteristics in tight reservoirs

open access: yesShiyou shiyan dizhi, 2023
The reservoir space of tight reservoir with low-permeability is controlled by micro and nano scale pores, making the influence of capillary force significantly enhanced.
Wenbin JIANG   +8 more
doaj   +1 more source

Thermodynamic Approach to Generalized Continua

open access: yes, 2013
Governing equations of dissipative generalized solid mechanics are derived by thermodynamic methods in the Piola-Kirchhoff framework using the Liu procedure. The isotropic small strain case is investigated in more detail.
Berezovski, A., Papenfuss, C., Ván, P.
core   +1 more source

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