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  2. National Programme on Technology Enhanced Learning - Wikipedia

    en.wikipedia.org/wiki/National_Programme_on...

    NPTEL courses aim for equitable access. They intended to be available, irrespective of location. Students in non-urban and rural areas can also study via supplementary DVDs and mobile delivered content. NPTEL exams can be written by students no matter where they are located. Assessments take place either at an exam site, or via remote ...

  3. Fiber volume ratio - Wikipedia

    en.wikipedia.org/wiki/Fiber_volume_ratio

    In practice, it's hard to achieve a volume fraction greater than 0.7 and this must be regarded as the realistic limit for commercial materials. In the production process, using different fiber architecture methods can obtain different volume fractions. 2D aligned unidirectional fabrics with pre-preg (usually carbon) fibers are considered to ...

  4. Multi-material 3D printing - Wikipedia

    en.wikipedia.org/wiki/Multi-material_3D_printing

    Multi-material 3D printing is the additive manufacturing procedure of using multiple materials at the same time to fabricate an object. Similar to single material additive manufacturing it can be realised through methods such as FFF , SLA and Inkjet (material jetting) 3D printing .

  5. Bulk moulding compound - Wikipedia

    en.wikipedia.org/wiki/Bulk_moulding_compound

    The material is provided in bulk or in logs approximately 4" in diameter. [2] [3] The glass fibers in BMC increase the strength properties of the product to be higher than standard thermoplastic products. The viscosity of BMC dictates how effectively it can fill a mold. When at high viscosity, the pressure applied to the BMC is not enough for ...

  6. Process analytical technology - Wikipedia

    en.wikipedia.org/wiki/Process_analytical_technology

    Process analytical technology (PAT) has been defined by the United States Food and Drug Administration (FDA) as a mechanism to design, analyze, and control pharmaceutical manufacturing processes through the measurement of critical process parameters (CPP) which affect the critical quality attributes (CQA).

  7. Bill of materials - Wikipedia

    en.wikipedia.org/wiki/Bill_of_materials

    A bill of materials or product structure (sometimes bill of material, BOM or associated list) is a list of the raw materials, sub-assemblies, intermediate assemblies, sub-components, parts, and the quantities of each needed to manufacture an end product. A BOM may be used for communication between manufacturing partners or confined to a single ...

  8. Selective laser sintering - Wikipedia

    en.wikipedia.org/wiki/Selective_laser_sintering

    An SLS machine being used at the Centro de Pesquisas Renato Archer in Brazil.. Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power and heat source to sinter powdered material (typically nylon or polyamide), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure.

  9. Glossary of textile manufacturing - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_textile...

    Linen is a material made from the fibers of the flax plant. Linens are fabric household goods, such as pillowcases and towels, many of which were historically made from linen cloth. lining Lining loden Loden is water-resistant material for clothing made from sheep wool. loft An indication of thickness of a textile when not under compression.