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  2. Implosion (mechanical process) - Wikipedia

    en.wikipedia.org/wiki/Implosion_(mechanical_process)

    In some but not all cases, an implosion propels material outward, for example due to the force of inward falling material rebounding, or peripheral material being ejected as the inner parts collapse. If the object was previously solid, then implosion usually requires it to take on a more dense form—in effect to be more concentrated ...

  3. File:Core collapse scenario.svg - Wikipedia

    en.wikipedia.org/wiki/File:Core_collapse...

    (d) The infalling material bounces off the nucleus and forms an outward-propagating shock wave (red). (e) The shock begins to stall as nuclear processes drain energy away, but it is re-invigorated by interaction with neutrinos. (f) The material outside the inner core is ejected, leaving behind only a degenerate remnant.

  4. Nuclear proliferation - Wikipedia

    en.wikipedia.org/wiki/Nuclear_proliferation

    Material Accountancy – tracking all inward and outward transfers and the flow of materials in any nuclear facility. This includes sampling and analysis of nuclear material, on-site inspections, and review and verification of operating records. Physical Security – restricting access to nuclear materials at the site.

  5. Standard operating procedure - Wikipedia

    en.wikipedia.org/wiki/Standard_operating_procedure

    A standard operating procedure (SOP) is a set of step-by-step instructions compiled by an organization to help workers carry out routine operations. [1] SOPs aim to achieve efficiency, quality output, and uniformity of performance, while reducing miscommunication and failure to comply with industry regulations .

  6. Garter spring - Wikipedia

    en.wikipedia.org/wiki/Garter_spring

    Extension garter springs are on the opposite side of the spring spectrum. Although they are also a type of coiled spring, extension garter springs exert inward radial forces that move toward the center. Extension springs [2] store potential energy in their extended form and want to contract. Thinner wire and a greater number of coils allow ...

  7. Grand tack hypothesis - Wikipedia

    en.wikipedia.org/wiki/Grand_Tack_Hypothesis

    Jupiter's inward migration alters this distribution of material, [14] driving planetesimals inward to form a narrow dense band with a mix of materials inside 1.0 AU, [15] and leaves the Mars region largely empty. [16] Planetary embryos quickly form in the narrow band. Most of these embryos collide and merge to form the larger terrestrial ...

  8. Linkage (mechanical) - Wikipedia

    en.wikipedia.org/wiki/Linkage_(mechanical)

    Klann linkage is a six-bar linkage that forms a leg mechanism; Toggle mechanisms are four-bar linkages that are dimensioned so that they can fold and lock. The toggle positions are determined by the colinearity of two of the moving links. [19] The linkage is dimensioned so that the linkage reaches a toggle position just before it folds.

  9. Canonical normal form - Wikipedia

    en.wikipedia.org/wiki/Canonical_normal_form

    In Boolean algebra, any Boolean function can be expressed in the canonical disjunctive normal form , [1] minterm canonical form, or Sum of Products (SoP or SOP) as a disjunction (OR) of minterms. The De Morgan dual is the canonical conjunctive normal form ( CCNF ), maxterm canonical form , or Product of Sums ( PoS or POS ) which is a ...