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{{Short description|Time coordinate used in cosmology}} '''Cosmic time''', or '''cosmological time''', is the [[time]] [[coordinate]] commonly used in the [[Big Bang]] models of [[physical cosmology]].<ref>I ...

...e constant velocity whereas in [[general relativity]] it will be a general coordinate transformation. ...a coordinate system. The relativistic force <math>f^\mu </math> in another coordinate system moving with constant velocity <math>v</math>, relative to the other ...

...ally, each method will be completely separate and independent of the other systems of communication. For each method, the receiver must first sense which one ...s the order in which an element will move through available communications systems until contact can be established with the desired distant element."<ref nam ...

...PADHYAY|author2=M. MITRA|author3=S. SENGUPTA|journal=Journal of Electrical Systems|year=2008|volume=04|issue=1|pages=62|url=https://www.researchgate.net/publi ...s entirely in the alpha-beta coordinate space), and can be ignored for two coordinate calculations that operate under this assumption that the system is balanced ...

...angles that specify the position of a point with respect to the datum of a coordinate system.}} ...an ''{{gli|addressable point}}'' with respect to the origin of a specified coordinate system.}} ...

...[[EnerSys]]; Holder Construction; Liebert / [[Emerson Electric]]; MGE UPS Systems; Power Management Concepts; [https://sandc.com S&C Electric Company]; [[Sie ...ncy response centers, and manufacturing plants, have invested in hardware, systems, software, and engineering services to ensure the uninterrupted supply of h ...

...lue problems of heat conduction in rectangular and cylindrical co-ordinate systems |journal=International Journal for Numerical Methods in Engineering |date=F ...designation followed by a number designation. The letter(s) designate the coordinate system, while the numbers designate the type of boundary conditions that ar ...

...play an important role in the operation of [[three phase electric power]] systems. ...litude zero at time zero.<ref name=":0">{{Cite book|title = Electric Power Systems: A Conceptual Introduction|last = von Meier|first = Alexandra|publisher = [ ...

...example of such a natural coordinate choice. They assign constant spatial coordinate values to observers who perceive the universe as [[Isotropy|isotropic]]. Su ...nates]], a scientist's job can be simplified by using different coordinate systems that are easy to work with. --> ...

...e space or virtual space for data. Data space can be divided evenly by a [[systems of measurement|system of measurement]], or divided unevenly with [[meta dat * Systems of measurement ...

...ed to define the [[orientation (vector space)|orientation]] of [[Cartesian coordinate system|axes]] in [[three-dimensional space]] and to determine the direction ...when it was implemented as a way for identifying the positive direction of coordinate axes in three dimensions. [[William Rowan Hamilton]], recognized for his de ...

...to verify if exact differentials also exist for non-orthogonal coordinate systems.</ref> ...th shown in the left of the right figure where a 2-dimensional [[Cartesian coordinate system]] is used. The second segment of this path is parallel to the <math> ...

...of the electromagnetic tensor. The relationship is simplest in [[Cartesian coordinate system|Cartesian coordinates]]: ...m is assumed, and the electric and magnetic fields are with respect to the coordinate system's reference frame, as in the equations above. ...

...|p=384}} The curve is important for [[voltage stability analysis]], as the coordinate of the tip of the nose defines the maximum power that can be delivered by t * {{cite book | title = Real-Time Stability in Power Systems: Techniques for Early Detection of the Risk of Blackout | last1 = Van Cutse ...

...elements of the infinitesimal strain tensor are the normal strains in the coordinate directions. If we choose an [[orthonormal basis|orthonormal coordinate system]] (<math>\mathbf{e}_1,\mathbf{e}_2,\mathbf{e}_3</math>) we can write ...

...luding structures, [[Pipeline transport|pipeline]]s, equipment, and piping systems, stay in good shape. ...ess/Chemical and [[Mechanical Engineering]] and other Maintenance Units to coordinate major shutdowns and turn-around activities ...

...tion to Mechanics and Symmetry: A Basic Exposition of Classical Mechanical Systems |author1=Jerrold E. Marsden |author2=Tudor S. Ratiu |isbn=0-387-98643-X |ye ...as seen in a particular non-inertial frame, transform as ''vectors'' under coordinate transformations made within that frame, like real forces. ...

.... In particular, a problem arises due to energy associated with coordinate systems co-rotating with the entire universe.<ref name=Berman2009/> A first constra ...

...[[Maxwell's equations in curved spacetime]] or non-rectilinear coordinate systems. Expressed in terms of [[coordinate time]] ''t'', it is: ...

...ficial devices]], which probably could not exist without metamaterials and coordinate transformation. Computing power that became available in the late 1990s ena ==Coordinate transformations== ...