Results 71 to 80 of about 6,337 (213)
On the Rayleigh-Ritz variational method
, 2022 We give a simple proof of the well known fact that the approximate eigenvalues provided by the Rayleigh-Ritz variational method are increasingly accurate upper bounds to the exact ones. To this end, we resort to the variational principle, mentioned in most textbooks on quantum chemistry, and to a well known set of projection operators.
openaire +2 more sources
The Effects of Canning on the In Vitro Solubility of Phosphorus in Pet Food
Journal of Animal Physiology and Animal Nutrition, EarlyView.ABSTRACT Excess phosphate (P) intake through inorganic P (Pi) addition is known to cause various adverse health effects while declaration of use and amount in pet food in the EU is not regulated. Distinction between organic phosphate (oP) from feed ingredients and Pi with standard laboratory methods is impossible.
Sophia Löffelmann +3 more
wiley +1 more source
Uniform convergence guarantees for the deep Ritz method for nonlinear problems. [PDF]
Adv Contin Discret Model, 2022 Dondl P, Müller J, Zeinhofer M.
europepmc +1 more source
Maternal &Child Nutrition, EarlyView.Abstract Distance from health facilities is an important predictor of treatment seeking and health outcomes. We aimed to describe the relationship between distance from care with admission characteristics and treatment outcomes among children admitted to malnutrition treatment.
Suvi T. Kangas +10 more
wiley +1 more source
Analytical Determination of Static Deflection Shape of an Asymmetric Extradosed Cable-Stayed Bridge Using Ritz Method. [PDF]
Materials (Basel), 2022 Lou D, Chen Y, Feng Q, Cai J.
europepmc +1 more source
Public Administration, EarlyView.ABSTRACT With fewer young people entering public service, public employers and the corresponding trade unions aim at signaling that they offer attractive working conditions. However, in the struggle for attractive conditions, labor market conflicts occur between public employers and public sector unions when bargains fail. According to signaling theory,
Christian Heide, Florian Keppeler
wiley +1 more source
Three-Dimensional Free Vibration Analyses of Preloaded Cracked Plates of Functionally Graded Materials via the MLS-Ritz Method. [PDF]
Materials (Basel), 2021 Huang CS, Lee HT, Li PY, Chang MJ.
europepmc +1 more source
Plant Biology, EarlyView.In vitro‐tested photosystem II thermotolerance of seven temperate conifers indicated higher thermal thresholds in species growing in high elevations compared to those in the lowlands. Higher thermotolerance might be explained by the adaptation of species in higher elevations to extreme diurnal temperature fluctuations.
N. Kunert, E. Düsterhöft
wiley +1 more source
Shock and Vibration, 2017 The free vibration analysis of moderately thick functionally graded (FG) sector plates resting on two-parameter elastic foundation with general boundary conditions is presented via Fourier-Ritz method, which is composed of the modified Fourier series ...
Haichao Li +3 more
doaj +1 more source
AIP Advances, 2020 In this study, a unified solution method to obtain the natural frequencies of the functionally graded rectangular plate (FGRP) with general elastic restraints by using ultraspherical polynomials and the Ritz method is presented.
Kwanghun Kim +4 more
doaj +1 more source