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2. Circle grid analysis - Wikipedia

   en.wikipedia.org/wiki/Circle_grid_analysis

   Circle grid analysis (CGA), also known as circle grid strain analysis, is a method of measuring the strain levels of sheet metal after a part is formed by stamping or drawing. The name itself is a fairly accurate description of the process. Literally, a grid of circles of known diameter is etched to the surface of the sheet metal to be formed ...

3. Forming limit diagram - Wikipedia

   en.wikipedia.org/wiki/Forming_limit_diagram

   The mechanical test is performed by placing a circular mark on the work piece prior to deformation, and then measuring the post-deformation ellipse that is generated from the action on this circle. By repeating the mechanical test to generate a range of stress states, the formability limit diagram can be generated as a line at which failure is ...

4. Finite-difference time-domain method - Wikipedia

   en.wikipedia.org/wiki/Finite-difference_time...

   This scheme involves the placement of electric and magnetic fields on a staggered grid. Finite-difference time-domain ( FDTD ) or Yee's method (named after the Chinese American applied mathematician Kane S. Yee , born 1934) is a numerical analysis technique used for modeling computational electrodynamics (finding approximate solutions to the ...

5. Circular analysis - Wikipedia

   en.wikipedia.org/wiki/Circular_analysis

   In statistics, circular analysis is the selection of the details of a data analysis using the data that is being analysed. It is often referred to as double dipping, as one uses the same data twice. Circular analysis unjustifiably inflates the apparent statistical strength of any results reported and, at the most extreme, can lead to the ...

6. GrADS - Wikipedia

   en.wikipedia.org/wiki/GrADS

   The Grid Analysis and Display System [2] (GrADS) is an interactive desktop tool that is used for easy access, manipulation, and visualization of earth science data. The format of the data may be either binary , GRIB , NetCDF , or HDF -SDS (Scientific Data Sets).

7. Directional statistics - Wikipedia

   en.wikipedia.org/wiki/Directional_statistics

   The usefulness of the von Mises distribution is twofold: it is the most mathematically tractable of all circular distributions, allowing simpler statistical analysis, and it is a close approximation to the wrapped normal distribution, which, analogously to the linear normal distribution, is important because it is the limiting case for the sum ...