Results 11 to 20 of about 11,014,330 (212)

Improvement of Calculation Technique for Flexible Orthotropic Plates on Elastic Base. Part 2. Calculation Results

open access: yesНаука и техника, 2022
The proposed paper is a continuation of the author's theoretical work presented earlier in the development of the theory and methodology for calculating flexible orthotropic reinforced concrete plates on an elastic foundation, taking into account the ...
O. V. Kozunova
doaj   +1 more source

Talent Management: Überblick und konzeptionelle Grundlagen [PDF]

open access: yes, 2018
Adrian Ritz und Peter Sinelli widmen sich den definitorischen und konzeptionellen Grundlagen des Talent Managements sowie seiner Bezüge zum Prozessmodell des Human Resources Managements.
Sinelli, Peter   +3 more
core   +1 more source

PARSEC.py: A Python-Based Real-Space Kohn-Sham Density Functional Theory Code Accelerated by Machine Learned Charge Density. [PDF]

open access: yesJ Comput Chem
PARSEC.py is a Python‐based real‐space Kohn–Sham DFT framework that leverages the Python scientific ecosystem for transparent, modular integration of machine‐learned densities and GPU acceleration. This unified design enables more efficient and scalable first‐principles simulations of large chemical and materials systems. ABSTRACT PARSEC.py is a Python‐
Zhang Z   +4 more
europepmc   +2 more sources

Generalized stress field in granular soils heap with Rayleigh–Ritz method

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2017
The stress field in granular soils heap (including piled coal) will have a non-negligible impact on the settlement of the underlying soils. It is usually obtained by measurements and numerical simulations.
Gang Bi
doaj   +1 more source

Vibration analysis of nanorods by the Rayleigh-Ritz method and truncated Fourier series

open access: yesResults in Physics, 2019
A solution procedure applicable for analyzing the free longitudinal vibration of nanorods is presented in this study. The longitudinal displacement of the nanorod is sought as a linear combination of a Fourier series and auxiliary trigonometric functions.
Siyuan Bao, Jinrui Cao, Shuodao Wang
doaj   +1 more source

Free in-plane vibration of heterogeneous nanoplates using Ritz method [PDF]

open access: yesJournal of Theoretical and Applied Vibration and Acoustics, 2016
In this paper, the Ritz method has been employed to analyze the free in-plane vibration of heterogeneous (non-uniform) rectangular nanoplates corresponding to Eringen’s nonlocal elasticity theory.
Shirko Faroughi   +1 more
doaj   +1 more source

Comparison of an improved self-consistent lower bound theory with Lehmann’s method for low-lying eigenvalues

open access: yesScientific Reports, 2021
Ritz eigenvalues only provide upper bounds for the energy levels, while obtaining lower bounds requires at least the calculation of the variances associated with these eigenvalues. The well-known Weinstein and Temple lower bounds based on the eigenvalues
Miklos Ronto   +2 more
doaj   +1 more source

Large Amplitude Free Vibration Analysis of Thin Rectangular Plates: Simple Closed-form Solutions

open access: yesNonlinear Engineering, 2013
Large amplitude free vibration behavior of thin, isotropic rectangular plate configurations are expressed in the form of simple closed-form solutions by using an application of the Ritz method based on coupled displacement fields.
Gunda Jagadish Babu
doaj   +1 more source

Buckling of Steel Conical Panels Reinforced with Stiffeners

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2023
Conical shells and their panels are important elements of building structures, but have not been studied sufficiently. This paper explores buckling of truncated steel conical panels reinforced with an orthogonal grid of stiffener plates.
Alexey A. Semenov   +2 more
doaj   +1 more source

Solving Non-Linear Fractional Variational Problems Using Jacobi Polynomials

open access: yesMathematics, 2019
The aim of this paper is to solve a class of non-linear fractional variational problems (NLFVPs) using the Ritz method and to perform a comparative study on the choice of different polynomials in the method.
Harendra Singh   +2 more
doaj   +1 more source

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