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  2. Differential refractometer - Wikipedia

    en.wikipedia.org/wiki/Differential_refractometer

    A diagram of the general front-view of a differential refractometer. A differential refractometer (DRI), or refractive index detector (RI or RID) is a detector that measures the refractive index of an analyte relative to the solvent. They are often used as detectors for high-performance liquid chromatography and size exclusion chromatography ...

  3. Exploded-view drawing - Wikipedia

    en.wikipedia.org/wiki/Exploded-view_drawing

    An exploded-view drawing is a diagram, picture, schematic or technical drawing of an object, that shows the relationship or order of assembly of various parts. [1]It shows the components of an object slightly separated by distance, or suspended in surrounding space in the case of a three-dimensional exploded diagram.

  4. List of components of oil drilling rigs - Wikipedia

    en.wikipedia.org/wiki/List_of_components_of_oil...

    Rotary table (#20) rotates, along with its constituent parts, the kelly and kelly bushing, the drill string and the attached tools and bit. Shale shaker (#2) separates drill cuttings from the drilling fluid before it is pumped back down the wellbore. Stand (#16) is a section of 2 or 3 joints of drill pipe connected and stood upright in the ...

  5. Direct reduced iron - Wikipedia

    en.wikipedia.org/wiki/Direct_reduced_iron

    Direct reduction processes can be divided roughly into two categories: gas-based and coal-based. In both cases, the objective of the process is to remove the oxygen contained in various forms of iron ore (sized ore, concentrates, pellets, mill scale, furnace dust, etc.) in order to convert the ore to metallic iron, without melting it (below 1,200 °C (2,190 °F)).

  6. Deep reactive-ion etching - Wikipedia

    en.wikipedia.org/wiki/Deep_reactive-ion_etching

    Deep reactive-ion etching (DRIE) is a special subclass of reactive-ion etching (RIE). It enables highly anisotropic etch process used to create deep penetration, steep-sided holes and trenches in wafers/substrates, typically with high aspect ratios.

  7. Dietary Reference Intake - Wikipedia

    en.wikipedia.org/wiki/Dietary_Reference_Intake

    The Dietary Reference Intake (DRI) is a system of nutrition recommendations from the National Academy of Medicine (NAM) [a] of the National Academies (United States). [1] It was introduced in 1997 in order to broaden the existing guidelines known as Recommended Dietary Allowances ( RDA s, see below).

  8. Fokker Dr.I - Wikipedia

    en.wikipedia.org/wiki/Fokker_Dr.I

    Data from Quest for Performance. General characteristics Crew: 1 Length: 5.77 m (18 ft 11 in) Upper wingspan: 7.19 m (23 ft 7 in) Height: 2.95 m (9 ft 8 in) Wing area: 18.7 m 2 (201 sq ft) Aspect ratio: 4.04 Empty weight: 406 kg (895 lb) Gross weight: 586 kg (1,291 lb) Powerplant: 1 × Oberursel Ur.II 9-cylinder air-cooled rotary piston engine, 82 kW (110 hp) Propellers: 2-bladed fixed-pitch ...

  9. Dry cell - Wikipedia

    en.wikipedia.org/wiki/Dry_cell

    Dry cell battery by Wilhelm Hellesen 1890. Many experimenters tried to immobilize the electrolyte of an electrochemical cell to make it more convenient to use. The Zamboni pile of 1812 is a high-voltage dry battery but capable of delivering only minute currents.