When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Surface roughness - Wikipedia

    en.wikipedia.org/wiki/Surface_roughness

    Surface roughness can be regarded as the quality of a surface of not being smooth and it is hence linked to human perception of the surface texture. From a mathematical perspective it is related to the spatial variability structure of surfaces, and inherently it is a multiscale property.

  3. Engineering drawing abbreviations and symbols - Wikipedia

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

    A stamp on the drawing saying "ISSUED" documents that RTP has occurred. RTV: room-temperature vulcanizing; return to vendor: 1. RTV sealants, a way to seal joints. 2. Return to vendor, send parts back to a vendor for rework or refund because they are nonconforming. Such RTV often requires an RMA. RZ, Rz: roughness, mean depth: See surface ...

  4. Surface finish - Wikipedia

    en.wikipedia.org/wiki/Surface_finish

    Surface finish, also known as surface texture or surface topography, is the nature of a surface as defined by the three characteristics of lay, surface roughness, and waviness. [1] It comprises the small, local deviations of a surface from the perfectly flat ideal (a true plane ).

  5. Surface imperfections (optics) - Wikipedia

    en.wikipedia.org/wiki/Surface_imperfections_(optics)

    Roughness, texture or optical finish is a defect that originates from the element's manufacturing. Texture is a periodical phenomenon with a high spatial frequency (or in other words, in small dimensions), which affects the entire surface and causes the scattering of incident light. [7] A higher value of roughness means a rougher surface. [7]

  6. Gloss (optics) - Wikipedia

    en.wikipedia.org/wiki/Gloss_(optics)

    Surface roughness influences the specular reflectance levels; in the visible frequencies, the surface finish in the micrometre range is most relevant. The diagram on the right depicts the reflection at an angle on a rough surface with a characteristic roughness height variation . The path difference between rays reflected from the top and ...

  7. Moody chart - Wikipedia

    en.wikipedia.org/wiki/Moody_chart

    In engineering, the Moody chart or Moody diagram (also Stanton diagram) is a graph in non-dimensional form that relates the Darcy–Weisbach friction factor f D, Reynolds number Re, and surface roughness for fully developed flow in a circular pipe. It can be used to predict pressure drop or flow rate down such a pipe.

  8. Texture (visual arts) - Wikipedia

    en.wikipedia.org/wiki/Texture_(visual_arts)

    The bumpy texture of tactile paving.. The physical texture, also known as actual texture or tactile texture, refers to the patterns of variations found on a solid surface. . These can encompass a wide range of materials, including but not limited to fur, canvas, wood grain, sand, leather, satin, eggshell, matte, or smooth surfaces like metal or g

  9. Abbott-Firestone curve - Wikipedia

    en.wikipedia.org/wiki/Abbott-Firestone_curve

    The Abbott-Firestone curve. The Abbott-Firestone curve or bearing area curve (BAC) describes the surface texture of an object. The curve can be found from a profile trace by drawing lines parallel to the datum and measuring the fraction of the line which lies within the profile.