Beam (structure) — A statically determinate beam, bending (sagging) under an evenly distributed load. A beam is a horizontal structural element that is capable of withstanding load primarily by resisting bending. The bending force induced into the material of the… … Wikipedia
Beam propagation method — (BPM) refers to a computational technique in Electromagnetics, usedto solve the Helmholtz equation under conditions of a time harmonic wave. BPM works under slowly varying envelope approximation, for linear and nonlinear equations.The beam… … Wikipedia
Beam diameter — The beam diameter or beam width of an electromagnetic beam is the diameter along any specified line that is perpendicular to the beam axis and intersects it. Since beams typically do not have sharp edges, the diameter can be obtained in many… … Wikipedia
Beam divergence — The beam divergence of an electromagnetic beam is an angular measure of the increase in beam diameter with distance from the optical aperture or antenna aperture from which the electromagnetic beam emerges. The term is relevant only in the far… … Wikipedia
Section modulus — In structural engineering, the section modulus of a beam is the ratio of a cross section s second moment of area to its greatest distance from the neutral axis.The section modulus is directly related to the strength of a corresponding beam. It is … Wikipedia
Beam parameter product — In laser science, the beam parameter product (BPP) is the product of a laser beam s divergence angle (half angle) and the radius of the beam at its narrowest point (the beam waist).cite web|url=http://www.rp photonics.com/beam parameter… … Wikipedia
beam cross-section — pluošto skerspjūvis statusas T sritis fizika atitikmenys: angl. beam cross section vok. Bündelquerschnitt, m; Strahlquerschnitt, m rus. поперечное сечение пучка, n pranc. section transversale du faisceau, f … Fizikos terminų žodynas
section transversale du faisceau — pluošto skerspjūvis statusas T sritis fizika atitikmenys: angl. beam cross section vok. Bündelquerschnitt, m; Strahlquerschnitt, m rus. поперечное сечение пучка, n pranc. section transversale du faisceau, f … Fizikos terminų žodynas
beam — a long piece of wood, square or rectangular in cross section, used in buildings, and generally supported at both ends; instead of wood, a beam can be made of steal, or a light alloy, or of concrete. see also plank … Mechanics glossary
beam cross-sectional area — pluošto skerspjūvio plotas statusas T sritis fizika atitikmenys: angl. beam cross sectional area vok. Querschnitsfläche des Strahlenbündels, f rus. площадь поперечного сечения пучка, f pranc. aire de la section transversale du faisceau, f … Fizikos terminų žodynas
