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  2. Promethium - Wikipedia

    en.wikipedia.org/wiki/Promethium

    As-synthesized, e.g. by heating the oxalate, it is a white or lavender-colored powder with disordered structure. [14] This powder crystallizes in a cubic lattice upon heating to 600 °C. Further annealing at 800 °C and then at 1750 °C irreversibly transforms it to monoclinic and hexagonal phases, respectively, and the last two phases can be ...

  3. Prometheus (software) - Wikipedia

    en.wikipedia.org/wiki/Prometheus_(software)

    Prometheus collects data in the form of time series. The time series are built through a pull model: the Prometheus server queries a list of data sources (sometimes called exporters) at a specific polling frequency. Each of the data sources serves the current values of the metrics for that data source at the endpoint queried by Prometheus.

  4. Rare-earth element - Wikipedia

    en.wikipedia.org/wiki/Rare-earth_element

    Five different crystal structures are known, depending on the element and the temperature. The X-phase and the H-phase are only stable above 2000 K. At lower temperatures, there are the hexagonal A-phase, the monoclinic B-phase, and the cubic C-phase, which is the stable form at room temperature for most of the elements.

  5. Chart - Wikipedia

    en.wikipedia.org/wiki/Chart

    A chart can represent tabular numeric data, functions or some kinds of quality structure and provides different info. The term "chart" as a graphical representation of data has multiple meanings: A data chart is a type of diagram or graph , that organizes and represents a set of numerical or qualitative data.

  6. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    Example of a spreadsheet holding data about a group of audio tracks. A spreadsheet is a computer application for computation, organization, analysis and storage of data in tabular form. [1] [2] [3] Spreadsheets were developed as computerized analogs of paper accounting worksheets. [4] The program operates on data entered in cells of a table.

  7. File:NREL PV Cell Record Efficiency Chart.png - Wikipedia

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

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  8. Data structure diagram - Wikipedia

    en.wikipedia.org/wiki/Data_structure_diagram

    Data structure diagram and a data dictionary. A data structure diagram is a diagram type that is used to depict the structure of data elements in the data dictionary. The data structure diagram is a graphical alternative to the composition specifications within such data dictionary entries. [1] The data structure diagrams is a predecessor of ...

  9. Structure chart - Wikipedia

    en.wikipedia.org/wiki/Structure_Chart

    Example of a Structured Chart. [1] A structure chart (SC) in software engineering and organizational theory is a chart which shows the smallest of a system to its lowest manageable levels. [2] They are used in structured programming to arrange program modules into a tree. Each module is represented by a box, which contains the module's name.