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The near-infrared (NIR) window (also known as optical window or therapeutic window) defines the range of wavelengths from 650 to 1350 nanometre (nm) where light has its maximum depth of penetration in tissue. [1] Within the NIR window, scattering is the most dominant light-tissue interaction, and therefore the propagating light becomes diffused ...
Møller scattering is the name given to electron-electron scattering in quantum field theory, named after the Danish physicist Christian Møller.The electron interaction that is idealized in Møller scattering forms the theoretical basis of many familiar phenomena such as the repulsion of electrons in the helium atom.
Differential cross section measurements were commonly made, for example, to study the structure of the atomic nucleus by scattering from them nucleons, [8] such as neutrons. It is important to distinguish between differential light scattering and dynamic light scattering , both of which are referred to by the initials DLS.
The window is cylindrical with the height equal to one and the base equal to 2a. The vertical cross-section of this window is a 1-D rectangular window. The frequency response of the window after substituting the window function as defined above, using the Hankel transform, is as shown below
Interactive molecular structure viewing system. Wright [18] [19] [20] 1972 GRIP-71 at UNC-CH: IBM System/360 Model 40 time-shared computer, IBM 2250 display, buttons, light pen, keyboard. Discrete manipulation and energy relaxation of protein structures. Program code became the foundation of the GRIP-75 system below. Barry and North [21] 1972
An exploded-view drawing is a diagram, picture, schematic or technical drawing of an object, that shows the relationship or order of assembly of various parts. [ 1 ] It shows the components of an object slightly separated by distance, or suspended in surrounding space in the case of a three- dimensional exploded diagram.
More generally, the term cross-section is used in physics to quantify the probability of a certain particle-particle interaction, e.g., scattering, electromagnetic absorption, etc. (Note that light in this context is described as consisting of particles, i.e., photons.) A typical absorption cross-section has units of cm 2 ⋅molecule −1.
The maxillary sinus can normally be seen above the level of the premolar and molar teeth in the upper jaw. This dental x-ray film shows how, in the absence of the second premolar and first molar, the sinus became pneumatized and expanded towards the crest of the alveolar process (location at which the bone meets the gum tissue).