Results 81 to 90 of about 81,469 (234)

Dissecting the FEAST algorithm for generalized eigenproblems

, 2012
We analyze the FEAST method for computing selected eigenvalues and eigenvectors of large sparse matrix pencils. After establishing the close connection between FEAST and the well-known Rayleigh-Ritz method, we identify several critical issues that ...
Bientinesi, Paolo, Di Napoli, Edoardo, Galgon, Martin, Krämer, Lukas, Lang, Bruno   +4 more
core   +1 more source

Screening and Diagnosis of Malnutrition in Individuals With Obesity: A Scoping Review of Current Methods

Obesity Reviews, EarlyView.
ABSTRACT Rationale The global rise in obesity presents a major public health challenge, commonly associated with an increased risk of noncommunicable diseases. Paradoxically, individuals with obesity, particularly older adults and those with comorbidities, are also at risk of malnutrition.
Natasha Nalucha Mwala, Jos W. Borkent, Carliene van Dronkelaar, Jeanne J. F. A. in 't Hulst, Barbara S. van der Meij, Maarten R. Soeters, Marian A. E. de van der Schueren   +6 more
wiley   +1 more source

Coupled anharmonic oscillators: the Rayleigh-Ritz approach versus the collocation approach

, 2010
For a system of coupled anharmonic oscillators we compare the convergence rate of the variational collocation approach presented recently by Amore and Fernandez (2010 Phys.Scr.81 045011) with the one obtained using the optimized Rayleigh-Ritz (RR) method.
Amore P, Anna Okopińska, Arias de Saavendra F, Arkadiusz Kuroś, Cencek W, Reed M   +5 more
core   +1 more source

Heat treatment duration affects in vitro‐induced photosynthetic impairment and development of necrotic leaf tissue in three Mediterranean oak species

Plant Biology, EarlyView.
Longer lasting heat treatment durations induced photosynthetic impairment at lower temperatures and caused the development of proportionally more necrotic tissue at lower temperatures in leaves of three Mediterranean oak species. Abstract Short heat treatments are commonly used to estimate the leaf‐level thermal tolerance of tree species. The effect of
N. Kunert, E. Düsterhöft, B. Stumpf
wiley   +1 more source

Free vibration analysis of functionally graded porous materials complex shells with variable thickness [PDF]

AUT Journal of Mechanical Engineering
This research investigates the vibration characteristics of composite shells featuring a cylindrical-hemispherical geometry, fabricated from functionally graded porous materials with varying thicknesses.
Farzaneh Jafari Maryaki, Alireza Shaterzadeh   +1 more
doaj   +1 more source

Variational calculations for resonance oscillations of inhomogeneous plasmas [PDF]

The electrostatic resonance properties of an inhomogeneous plasma column are reported by application of the Rayleigh-Ritz method. A description of the rf equation of motion and pressure term that expresses the system of equations in Euler-Lagrange form ...
Crawford, F. W., Peng, Y. K. M.
core   +1 more source

Localization transition of random copolymers at interfaces

, 1999
We consider adsorption of random copolymer chains onto an interface within the model of Garel et al. Europhysics Letters 8, 9 (1989). By using the replica method the adsorption of the copolymer at the interface is mapped onto the problem of finding the ...
A. Sali, A. V. Dobrynin, C. de Dominicis, C. de Dominicis, C. Yeung, C.-A. Dai, C.-A. Dai, H. R. Brown, H. R. Brown, Igor Ya. Erukhimovich, J. Bryngelson, J. M. Cornwall, J. Noolandi, J.-U. Sommer, J.-U. Sommer, Jens-Uwe Sommer, K. Char, L. D. Landau, M. Karplus, P. G. de Gennes, R. I. Hancock, S. F. Edwards, S. Milner, Semjon Stepanow, T. Garel   +24 more
core   +1 more source

The Downward Spiral of Legitimacy Erosion: Lessons on Network Governance Failure During the German “Refugee Crisis”

Public Administration Review, EarlyView.
ABSTRACT Organizational legitimacy is essential for effective crisis governance. This study analyzes the rapid erosion of legitimacy faced by the German State Office for Health and Social Affairs (LAGeSo) during the 2015 refugee crisis, triggering cascading failures in public service delivery.
Iris Seidemann, Kristina S. Weißmüller, Daniel Geiger   +2 more
wiley   +1 more source

Manajemen Stok Barang Menggunakan Metode Economic Order Quantity (EOQ) Pada Pt. Ritz Gallery Jepara

JOINS (Journal of Information System), 2017
Abstrak Besarnya pengeluaran biaya kirim membuat perusahaan untung lebih sedikit. PT. Ritz Gallery adalah salah satu pemain di dalam industri mebel ini. Perusahaan perlu mengembangkan strategi yang baik untuk mengurangi pengeluaran terlalu banyak. PT.
Rifqi Aminudin, Acun Kardianawati
doaj  

Static and dynamic study of composite beams with a new interlaminar sliding field using different beam theories

Vojnotehnički Glasnik
Introduction/purpose: The present work aims to carry out a static and dynamic investigation of composite beams composed of two elements connected together, with a partial interaction between the beam layers, while taking into account the interlaminar ...
Rachida Mohamed Krachaï, Noureddine Elmeiche, Ismail Mechab, Fabrice Bernard, Hichem Abbad   +4 more
doaj   +1 more source