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2. EURion constellation - Wikipedia

   en.wikipedia.org/wiki/EURion_constellation

   The EURion constellation (also known as Omron rings[1] or doughnuts[2]) is a pattern of symbols incorporated into a number of secure documents such as banknotes, cheques, and ownership title certificates designs worldwide since about 1996. It is added to help imaging software detect the presence of such a document in a digital image.

3. Drawdown chart - Wikipedia

   en.wikipedia.org/wiki/Drawdown_chart

   Drawdown chart. Drawdown charts are rectangular pieces of non-fluorescent paper [1] which are used to test a variety of coating properties. These properties include opacity, spreading rate, penetration, and flow & leveling behavior. [2] This non-fluorescent material has to be especially rugged in order to maintain its structure and give ...

4. Nautical chart - Wikipedia

   en.wikipedia.org/wiki/Nautical_chart

   A nautical chart or hydrographic chart is a graphic representation of a sea region or water body and adjacent coasts or banks. Depending on the scale of the chart, it may show depths of water (bathymetry) and heights of land (topography), natural features of the seabed, details of the coastline, navigational hazards, locations of natural and ...

5. Help:Printing - Wikipedia

   en.wikipedia.org/wiki/Help:Printing

   It is not one of , and may reflect varying levels of . This page in a nutshell: To print a Wikipedia page, select File → Print from your web browser, or click on the browser print icon. In general, printing a Wikipedia article is as simple as selecting Printable version from the tools menu on the sidebar or at the top-right.

6. Jeppesen - Wikipedia

   en.wikipedia.org/wiki/Jeppesen

   Jeppesen (also known as Jeppesen Sanderson) is an American company offering navigational information, operations planning tools, flight planning products and software. Jeppesen's aeronautical navigation charts are often called "Jepp charts" or simply "Jepps" by pilots, due to the charts' popularity. This popularity extends to electronic charts ...

7. Graph paper - Wikipedia

   en.wikipedia.org/wiki/Graph_paper

   Isometric graph paper or 3D graph paper is a triangular graph paper which uses a series of three guidelines forming a 60° grid of small triangles. The triangles are arranged in groups of six to make hexagons. The name suggests the use for isometric views or pseudo-three-dimensional views. Among other functions, they can be used in the design ...

8. Electronic navigational chart - Wikipedia

   en.wikipedia.org/wiki/Electronic_navigational_chart

   An Electronic Navigational Chart (ENC) is a digital representation of a real-world geographical area for the purpose of Marine navigation.Real-world objects and areas of navigational significance, or to a lesser degree - informational significance, are portrayed through Raster facsimiles of traditional paper charts; or more commonly through vector images, which are able to scale their relative ...

9. 1951 USAF resolution test chart - Wikipedia

   en.wikipedia.org/.../1951_USAF_resolution_test_chart

   A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...