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2. Reeb graph - Wikipedia

   en.wikipedia.org/wiki/Reeb_graph

   A Reeb graph [1] (named after Georges Reeb by René Thom) is a mathematical object reflecting the evolution of the level sets of a real-valued function on a manifold. [2] According to [ 3 ] a similar concept was introduced by G.M. Adelson-Velskii and A.S. Kronrod and applied to analysis of Hilbert's thirteenth problem . [ 4 ]

3. Reeb vector field - Wikipedia

   en.wikipedia.org/wiki/Reeb_vector_field

   In mathematics, the Reeb vector field, named after the French mathematician Georges Reeb, is a notion that appears in various domains of contact geometry including: in a contact manifold , given a contact 1-form α {\displaystyle \alpha } , the Reeb vector field satisfies R ∈ k e r d α , α ( R ) = 1 {\displaystyle R\in \mathrm {ker} \ d ...

4. Leeb rebound hardness test - Wikipedia

   en.wikipedia.org/wiki/Leeb_rebound_hardness_test

   Most of the time, these methods are selective, involving destructive tests on samples. From individual results, these tests draw statistical conclusions for entire batches. The portability of Leeb testers can sometimes help to achieve higher testing rates without destruction of samples, which in turn simplifies processes and reduces cost. [1]

5. DOORS - Wikipedia

   en.wikipedia.org/wiki/Rational_DOORS

   IBM Engineering Requirements Management DOORS (Dynamic Object Oriented Requirements System) (formerly Telelogic DOORS, then Rational DOORS) is a requirements management tool. [4] It is a client–server application, with a Windows-only client and servers for Linux, Windows, and Solaris. There is also a web client, DOORS Web Access.

6. Fire door - Wikipedia

   en.wikipedia.org/wiki/Fire_door

   Fire-resistance rated door, with wire mesh glass vision panel Industrial grade fire door rated to hydrocarbon curve and blast resistance Double fire door immediately after 3-hour fire test inside a 4-hour rated Durasteel wall Double fire door after 3-hour fire test in a 4-hour Durasteel wall, during successful 45PSI (3.1 bar) hose stream test leading to a UL Listing [1]

7. Door - Wikipedia

   en.wikipedia.org/wiki/Door

   A sliding glass door, sometimes called an Arcadia door or patio door, is a door made of glass that slides open and sometimes has a screen (a removable metal mesh that covers the door). Australian doors are a pair of plywood swinging doors often found in Australian public houses.