What are the fundamental assumptions underlying the definition and use of the principal axis?

Dec 30, 2020 ... The coordinate system for which the inertia tensor is diagonal is called the Principal axis system which has three perpendicular principal axes. May 3, 2019 ... The calculations suggest a triaxial shape of the nucleus at high spins, and the band may represent rotation of the nucleus about the longest axis. Determine principal axes of each frame determined by diagonalization of the inertial matrix from the coordinates of the specified atoms. ... principal axis factoring, alpha factoring, and image factoring. Principal Components Analysis . A factor extraction method used to form uncorrelated linear ... The directions of the three mutually orthogonal unit vectors $\hat{\mbox{\boldmath$\omega$}}_i$ define the three so-called principal axes of rotation of the ... large values on this axis), whereas the second principal axis reflected pH and phosphate concentrations (sites with high pH and high PO4 concentrations had ... Abstract. Principal axis factoring (PAF) and maximum likelihood factor analysis (MLFA) are two of the most popular estimation methods in exploratory factor ... Apr 1, 2015 ... A dissociative subtype has been recognized based on the presence of experiences of depersonalization and derealization in relation to DSM-IV posttraumatic ... The central concept is that for any system there exists a unique set of orthogonal axes (the principal axes) along which the material responds in a purely ... 1. Optics a line passing through the center of the surface of a lens or spherical mirror and through the centers of curvature of all segments of the lens or ...