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  2. Tog (unit) - Wikipedia

    en.wikipedia.org/wiki/Tog_(unit)

    The backronym thermal overall grade is also attested by several manuacturers. [citation needed] The basic unit of insulation coefficient is the R SI, (1 m 2 ⋅K/W). 1 tog = 0.1 R SI. There is also a US clothing unit, the clo, equivalent to 0.155 R SI or 1.55 tog, described in ASTM D-1518. [3] A tog is 0.1⋅m 2 ⋅K/W.

  3. Longarm quilting - Wikipedia

    en.wikipedia.org/wiki/Longarm_quilting

    Longarm quilting is the process by which a longarm sewing machine is used to sew together a quilt top, quilt batting and quilt backing into a finished quilt.. A complete longarming system typically consists of a sewing machine head, a frame, a table with a layer of plastic (under which is placed a pantograph), and several rollers on which the fabric layers and batting are attached.

  4. Perm (unit) - Wikipedia

    en.wikipedia.org/wiki/Perm_(unit)

    A variant of the metric perm is used in DIN Standard 53122, where permeance is also expressed in grams per square meter per day, but at a fixed, "standard" vapor-pressure difference of 17.918 mmHg. This unit is thus 17.918 times smaller than a metric perm, corresponding to about 0.084683 of a U.S. perm.

  5. Perm (hairstyle) - Wikipedia

    en.wikipedia.org/wiki/Perm_(hairstyle)

    A permanent wave, commonly called a perm or permanent (sometimes called a "curly perm" to distinguish it from a "straight perm"), [1] is a hairstyle consisting of waves or curls set into the hair. The curls may last a number of months, hence the name. Perms may be applied using thermal or chemical means.

  6. Quilting - Wikipedia

    en.wikipedia.org/wiki/Quilting

    Machine quilting needles are very sharp in order to readily pierce layers of quilt and properly sew together the quilt top, batting and backing. Hand quilting needles are traditionally called betweens and are generally smaller and stronger than normal sewing needles. They have a very small eye which prevents any extra bump at the head of the ...

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  8. Heat transfer - Wikipedia

    en.wikipedia.org/wiki/Heat_transfer

    That is, the method assumes that the temperature within the object is completely uniform, although its value may change over time. In this method, the ratio of the conductive heat resistance within the object to the convective heat transfer resistance across the object's boundary, known as the Biot number, is calculated.

  9. Time-domain thermoreflectance - Wikipedia

    en.wikipedia.org/wiki/Time-domain_thermoreflectance

    Time-domain thermoreflectance (TDTR) is a method by which the thermal properties of a material can be measured, most importantly thermal conductivity.This method can be applied most notably to thin film materials (up to hundreds of nanometers thick), which have properties that vary greatly when compared to the same materials in bulk.

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