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  2. Limonite - Wikipedia

    en.wikipedia.org/wiki/Limonite

    Limonite (/ ˈ l aɪ m ə ˌ n aɪ t /) is an iron ore consisting of a mixture of hydrated iron(III) oxide-hydroxides in varying composition. The generic formula is frequently written as FeO(OH)· n H 2 O , although this is not entirely accurate as the ratio of oxide to hydroxide can vary quite widely.

  3. File:Energy Transition Timeline.pdf - Wikipedia

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

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  4. Lateritic nickel ore deposits - Wikipedia

    en.wikipedia.org/wiki/Lateritic_nickel_ore_deposits

    This ore is so rich in limonite (generally grading 47% to 59% iron, 0.8 to 1.5% nickel and trace cobalt) that it is essentially similar to low-grade iron ore. As such, certain steel smelters in China have developed a process for blending nickel limonite ore with conventional iron ore to produce stainless steel feed products like nickel pig iron.

  5. Phase-change material - Wikipedia

    en.wikipedia.org/wiki/Phase-change_material

    A phase-change material (PCM) is a substance which releases/absorbs sufficient energy at phase transition to provide useful heat or cooling. Generally the transition will be from one of the first two fundamental states of matter - solid and liquid - to the other. The phase transition may also be between non-classical states of matter, such as ...

  6. Template:Table of phase transitions - Wikipedia

    en.wikipedia.org/wiki/Template:Table_of_phase...

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  7. Presentation slide - Wikipedia

    en.wikipedia.org/wiki/Presentation_slide

    A slide is a single page of a presentation. A group of slides is called a slide deck. A slide show is an exposition of a series of slides or images in an electronic device or on a projection screen. Before personal computers, they were 35 mm slides viewed with a slide projector [1] or transparencies viewed with an overhead projector.

  8. Phase transition - Wikipedia

    en.wikipedia.org/wiki/Phase_transition

    In physics, chemistry, and other related fields like biology, a phase transition (or phase change) is the physical process of transition between one state of a medium and another. Commonly the term is used to refer to changes among the basic states of matter : solid , liquid , and gas , and in rare cases, plasma .

  9. Jablonski diagram - Wikipedia

    en.wikipedia.org/wiki/Jablonski_diagram

    The changes between these levels are called "transitions" and are plotted on the Jablonski diagram. Radiative transitions involve either the absorption or emission of a photon. As mentioned above, these transitions are denoted with solid arrows with their tails at the initial energy level and their tips at the final energy level.