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  2. Wikipedia : WikiProject Electronics/Standard symbols

    en.wikipedia.org/.../Standard_symbols

    meters per second speed of light in material medium meters per second frequency: hertz (cycles per second) angular frequency: radians per second wave number: radians per meter wavelength: meters per cycle

  3. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    kilopounds per square inch, that is, thousands of pounds per square inch KSI (or ksi), also abbreviated KPSI or kpsi, is a common non- SI measurement scale for ultimate tensile strength , that is, the number of units of tensile force that a material can endure per unit of cross-sectional area before breaking.

  4. List of SI electromagnetism units - Wikipedia

    en.wikipedia.org/wiki/List_of_SI...

    henry per metre: H/m kg⋅m ⋅s −2 ⋅A −2: χ magnetic susceptibility (dimensionless) 1 1 m magnetic dipole moment: ampere square meter: A⋅m 2 = J⋅T −1: A⋅m 2: σ mass magnetization: ampere square meter per kilogram: A⋅m 2 /kg A⋅m 2 ⋅kg −1

  5. Interlocking - Wikipedia

    en.wikipedia.org/wiki/Interlocking

    Entrance-Exit Interlocking (NX) was the original brand name of the first generation relay-based centralized traffic control (CTC) interlocking system introduced in 1936 by GRS [13] (represented in Europe by Metropolitan-Vickers). The advent of all electric interlocking technology allowed for more automated route setting procedures as opposed to ...

  6. Concrete block - Wikipedia

    en.wikipedia.org/wiki/Concrete_block

    A pallet of "8-inch" concrete blocks An interior wall of painted concrete blocks Concrete masonry blocks A building constructed with concrete masonry blocks. A concrete block, also known as a cinder block in North American English, breeze block in British English, or concrete masonry unit (CMU), or by various other terms, is a standard-size rectangular block used in building construction.

  7. Types of mesh - Wikipedia

    en.wikipedia.org/wiki/Types_of_mesh

    Whenever a wall is present, the mesh adjacent to the wall is fine enough to resolve the boundary layer flow and generally quad, hex and prism cells are preferred over triangles, tetrahedrons and pyramids. Quad and Hex cells can be stretched where the flow is fully developed and one-dimensional. Depicts the skewness of a quadrilateral

  8. Hydraform International - Wikipedia

    en.wikipedia.org/wiki/Hydraform_International

    The Hydraform Interlocking Soil Block (hydraform block) is an interlocking earth block used in many countries for construction purposes. The hydraform block is made from soil cement which is a mixture of soil, cement and water, and is hydraulically compressed to form a high quality interlocking soil block. Soil from the building site can be ...

  9. Unified Code for Units of Measure - Wikipedia

    en.wikipedia.org/wiki/Unified_Code_for_Units_of...

    milliwatt per square metre: mW/m 2: heat flux density, irradiance: g⋅s −3: square metre per second: m 2 /s kinematic viscosity, thermal diffusivity, diffusion coefficient m 2 ⋅s −1: millipascal second: mPa⋅s = mN⋅s/m 2: dynamic viscosity: m −1 ⋅g⋅s −1: gram per metre: g/m linear mass density: m −1 ⋅g gram per second: g/s ...