positive moment
21Moment problem — In mathematics, a moment problem arises as the result of trying to invert the mapping that takes a measure μ to the sequences of moments More generally, one may consider for an arbitrary sequence of functions Mn. Contents 1 …
22Positive airway pressure — A typical CPAP machine houses the air pump in a case lined with sound absorbing material for quieter operation. A hose carries the pressurized air to a face mask or nasal pillow …
23Moment matrix — In mathematics, a moment matrix is a special symmetric square matrix whose rows and columns are indexed by monomials. The entries of the matrix depend on the product of the indexing monomials only (cf. Hankel matrices.) Moment matrices play an… …
24Shear and moment diagram — Shear and bending moment diagrams are analytical tools used in conjunction with structural analysis to help perform structural design by determining the value of shear force and bending moment at a given point of an element. Using these diagrams… …
25Shear and moment diagrams — Shear and bending moment diagrams are analytical tools used in conjunction with structural analysis to help perform structural design by determining the value of shear force and bending moment at a given point of an element. Using these diagrams… …
26Bending moment — A bending moment exists in a structural element when a moment is applied to the element so that the element bends. Moments and torques are measured as a force multiplied by a distance so they have as unit newton metres (N·m) , or foot pounds… …
27Second moment method — The second moment method is a technique used in probability theory and analysis to show that a random variable has positive probability to be positive. The method is often quantitative, in that one can often deducea lower bound on the probability …
28Electric dipole moment — In physics, the electric dipole moment (or electric dipole for short) is a measure of the polarity of a system of electric charges. In the simple case of two point charges, one with charge {+}q and one with charge { }q, the electric dipole moment …
29Hamburger moment problem — In mathematics, the Hamburger moment problem, named after Hans Ludwig Hamburger, is formulated as follows: given a sequence { αn : n = 1, 2, 3, ... }, does there exist a positive Borel measure μ on the real line such that:alpha n = int {… …
30Psychologie positive — La psychologie positive est une école de pensée proche des thèmes de la psychologie humaniste et une spécialité de la psychologie orientée vers le développement personnel et le changement social. Un de ses principaux représentants est le… …
