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In this case, the first car is stationary and the second car is approaching from behind at a speed of v 2 − v 1 = 8 m/s. To catch up to the first car, it will take a time of d / v 2 − v 1 = 200 / 8 s, that is, 25 seconds, as before. Note how much easier the problem becomes by choosing a suitable frame of reference.
For example, the union of disjoint orthonormal bases of a vector space is an overcomplete tight frame with = =. A tight frame is a Parseval frame if A = B = 1 {\displaystyle A=B=1} . [ 19 ] Each orthonormal basis is a (complete) Parseval frame, but the converse is not necessarily true.
Sometimes frames are distinguished by the scale of their observations, as in macroscopic and microscopic frames of reference. [2] In this article, the term observational frame of reference is used when emphasis is upon the state of motion rather than upon the coordinate choice or the character of the observations or observational apparatus. In ...
A typical datum reference frame is made up of three planes. For example, the three planes could be one "face side" and two "datum edges". These three planes are marked A, B and C, where A is the face side, B is the first datum edge, and C is the second datum edge. In this case, the datum reference frame is A/B/C.
The ORF Finder (Open Reading Frame Finder) [16] is a graphical analysis tool which finds all open reading frames of a selectable minimum size in a user's sequence or in a sequence already in the database. This tool identifies all open reading frames using the standard or alternative genetic codes.
A non-inertial reference frame (also known as an accelerated reference frame [1]) is a frame of reference that undergoes acceleration with respect to an inertial frame. [2] An accelerometer at rest in a non-inertial frame will, in general, detect a non-zero acceleration. While the laws of motion are the same in all inertial frames, in non ...
For example, if is a Riemannian manifold we saw above that it is natural to consider the orthonormal frame bundle of . The orthonormal frame bundle is just a reduction of the structure group of F G L ( M ) {\displaystyle F_{\mathrm {GL} }(M)} to the orthogonal group O ( n ) {\displaystyle \mathrm {O} (n)} .
A frame line is the unused space that separates two adjacent images, or film frames, on the release print of a motion picture. They can vary in width; a 35 mm film with a 1.85:1 hard matte has a frame line approximately 8 mm (0.3 in) high, whereas both a full frame negative and the anamorphic format have very narrow frame lines, with the frames ...