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A curve (top) is filled according to two rules: the even-odd rule (left), and the non-zero winding rule (right). In each case an arrow shows a ray from a point P heading out of the curve. In the even-odd case, the ray is intersected by two lines, an even number; therefore P is concluded to be 'outside' the curve.
Field lines depicting the electric field created by a positive charge (left), negative charge (center), and uncharged object (right). A field line is a graphical visual aid for visualizing vector fields. It consists of an imaginary integral curve which is tangent to the field vector at each point along its length.
Lab-on-a-chip technologies are one of the main drivers of point-of-care testing, especially in the field of infectious disease diagnosis. These technologies enable different bioassays such as microbiological culture, [8] PCR, ELISA to be used at the point of care.
A sketch colored digitally with use of several different blend modes in order to preserve the pencil lines and paper texture below the color layers. Blend modes (alternatively blending modes [ 1 ] or mixing modes [ 2 ] ) in digital image editing and computer graphics are used to determine how two layers are blended with each other.
A ring in which the zero-product property holds is called a domain.A commutative domain with a multiplicative identity element is called an integral domain.Any field is an integral domain; in fact, any subring of a field is an integral domain (as long as it contains 1).
The DoF is zero at the apex, remains shallow at the edge of the lens's field of view, and increases with distance from the camera. For a given position of the PoF, the angle between the planes that define the near and far limits of DoF (i.e., the angular DoF) increases with lens f -number ; for a given f -number and angle of the PoF, the ...
The term incompressible is used because a non-zero divergence corresponds to the presence of sources and sinks in analogy with a fluid. The concepts of conservative and incompressible vector fields generalize to n dimensions, because gradient and divergence generalize to n dimensions; curl is defined only in three dimensions, thus the concept ...
The following other wikis use this file: Usage on ar.wikipedia.org شحنة كهربائية; Usage on en.wikibooks.org A-level Physics (Advancing Physics)/Electric Potential/Worked Solutions