Results 61 to 70 of about 185,457 (163)

Validation of "sasLM," an R package for linear models with type III sum of squares. [PDF]

Transl Clin Pharmacol, 2020
Sunwoo J, Kim H, Choi D, Bae KS.
europepmc   +1 more source

Orthogonal contrasts: definitions and concepts

Scientia Agricola, 2004
The single degree of freedom of orthogonal contrasts is a useful technique for the analysis of experimental data and helpful in obtaining estimates of main, nested and interaction effects, for mean comparisons between groups of data and in obtaining ...
Maria Cristina Stolf Nogueira
doaj  

Estimation of the Region of Attraction of Polynomial Swing Equation Using Sum of Squares Theory

Energies
Estimation of the region of attraction of the power system using sum of squares (SOS) programming theory is investigated in this paper. Firstly, the Taylor expansion formula is applied to explore the inherent polynomial structure of the swing equation ...
Jing Li, Hao Wu, Xianwen Zhan, Deqiang Gan   +3 more
doaj   +1 more source

COMPLETELY RANDOMIZED DESIGN OF A MARKETING EXPERIMENT [PDF]

Annals of the University of Petrosani: Economics, 2018
The marketing experiment is a deliberate, "challenged", simulated small-scale, and relatively artificial, marketing phenomenon to highlight how its evolution is influenced by one or more causal factors.
CODRUŢA DURA
doaj  

Sums of Squares and Higher Powers

Journal of the London Mathematical Society, 1987
An asymptotic formula is proved for the number of solutions of the diophantine equation \[ n=x_ 1^ 2+x_ 2^ 2+y_ 1^{k_ 1}+...+y_ s^{k_ s}, \] subject to certain conditions on the natural numbers \(k_ 1,...,k_ s\). The results include all asymptotic formulae of the same type given by \textit{C.
openaire   +2 more sources

Descomposición en suma de cuadrados: teoría y aplicaciones en control

Ingeniería e Investigación, 2010
Las técnicas de descomposición en sumas de cuadrados (SOS) permiten emplear métodos numéricos para probar la positividad de funciones polinómicas multivariables resolviendo problemas de programación en semidefinida. Teniendo en cuenta que generalmente es
Andrés Pantoja, Eduardo Mojica Nava, Nicanor Quijano   +2 more
doaj  

Integrating NOE and RDC using sum-of-squares relaxation for protein structure determination. [PDF]

J Biomol NMR, 2017
Khoo Y, Singer A, Cowburn D.
europepmc   +1 more source

Sum-of-squares of polynomials approach to nonlinear stability of fluid flows: an example of application. [PDF]

Proc Math Phys Eng Sci, 2015
Huang D, Chernyshenko S, Goulart P, Lasagna D, Tutty O, Fuentes F.   +5 more
europepmc   +1 more source

Nonparametric spectral analysis of heart rate variability through penalized sum of squares. [PDF]

Stat Med, 2014
Krafty RT, Zhao M, Buysse DJ, Thayer JF, Hall M.   +4 more
europepmc   +1 more source

Sums of squares in $S$-integers

, 2020
In totally real number fields, we characterize the rings of $S$-integers (obtained by inverting a rational integer $m$) such that all their totally positive elements are represented as a sum of squares. We further obtain partial answers to the question: when are all the totally positive algebraic integers that are divisible by $m$ represented as a sum ...
Kala, Vítězslav, Yatsyna, Pavlo
openaire   +2 more sources