It is important to distinguish between stereotactic reference frames, which define a coordinate space in which anatomical volumes may be registered, and anatomical atlases or parcellations which may be defined within such a space, but which serve to partition the volume into a discrete set of labeled regions.
More specifically, the ggplot function has two optional arguments: (i) data (an input data frame), and (ii) aes, which defines the "x" and "y" variables in addition to any other variables to be associated with specific aesthetics, such as color, point shape, or line type.
The ggplot argument initializes a ggplot object and states the input data frame, from which defined variables can be used to create a plot.
The marker indicates the frame at which recooling of the immersed ions has been achieved, which defines the recooling time for that trial.
As usual in literature we consider the worst-case PAR to be the relevant criterion, i.e., the maximum PAR over all antennas within one OFDM frame, which is defined as (3).
Hausdorff distance can be calculated under the assumption that the Cα atoms for both structures are in a common coordinate frame which is defined by the structural alignment between two domains.
A mathematical model is designed, framed in difference equations which define the changes in inorganic carbon due to photosynthesis, respiration, and deposition of calcium carbonate in aquatic systems.
If one wants to measure the position of the object relative to a given spatial frame of reference, the measuring instrument must be rigidly fixed to the bodies which define the frame of reference.
In this paper, we develop an algorithm that uses the robot slave manipulator to generate the calibration pattern of points in three dimensions which define the world frame.
