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Angular resolution. A series of images representing the magnification of M87* with an angular size of some microarcseconds, comparable to viewing a tennis ball on the Moon (magnification from top left corner counter−clockwise to the top right corner). Angular resolution describes the ability of any image-forming device such as an optical or ...
IUPAC definition. The IUPAC definition for resolution in mass spectrometry is. Where a larger resolution indicates a better separation of peaks. [1][2] This definition is used in a number of mass spectrometry texts. [3][4][5][6][7][8][9][10][11] This use is also implied by the term "high-resolution mass spectrometry." [12]
Spectral resolution. The spectral resolution of a spectrograph, or, more generally, of a frequency spectrum, is a measure of its ability to resolve features in the electromagnetic spectrum. It is usually denoted by , and is closely related to the resolving power of the spectrograph, defined as where is the smallest difference in wavelengths ...
Dawes' limit is a formula to express the maximum resolving power of a microscope or telescope. [1] It is so named after its discoverer, William Rutter Dawes , [2] although it is also credited to Lord Rayleigh. The formula takes different forms depending on the units. This formula agrees with the usual at a wavelength of about 460nm, somewhat ...
At this flow rate, the resolving power of the column is maximized, although in practice, the elution time is likely to be impractical. Differentiating the van Deemter equation with respect to velocity, setting the resulting expression equal to zero, and solving for the optimum velocity yields the following:
Resolving power is the capacity of an instrument to resolve two points which are close together. Specifically, resolving power may refer to: Angular resolution;
The group is designated by a group number (-2, -1, 0, 1, 2, etc.) which is the power to which 2 should be raised to obtain the spatial frequency of the first element (e.g., group -2 is 0.25 line pairs per millimeter). Each element is the 6th root of 2 smaller than the preceding element in the group (e.g. element 1 is 2^0, element 2 is 2^(-1/6 ...
In microscopy, NA is important because it indicates the resolving power of a lens. The size of the finest detail that can be resolved (the resolution) is proportional to λ / 2NA , where λ is the wavelength of the light. A lens with a larger numerical aperture will be able to visualize finer details than a lens with a smaller numerical ...