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  • Article - 14 Dec 2001
    The basic design principles and components of a photovoltaic system are discussed. Other factors such as applications, appropriateness, effects of weather, system size, direct and alternating current...
  • Article - 14 Dec 2001
    Photovoltaics (PV) is the conversion of sunlight directly into electricity. This article outlines what it is, what a typical PV system looks like, how it can be used, how much a system costs and other...
  • Article - 27 Nov 2001
    Fibre reinforced plastic (FRP) concrete provides an alternative to steel reinforced concrete. It overcomes corrosion problems, possesses high strength and low stiffness and cracks in the matrix are...
  • Article - 7 Nov 2001
    904L is a low carbon, high alloy austenitic stainless steel. It has excellent formability, weldability and toughness. It has good resistance to reducing acids as well as chloride attack. Typical...
  • Article - 26 Oct 2001
    Vinyl is the most widely used medical polymer in use today. Several properties including flexibility, durability, compatibility, sterilisability and low cost contribute to its use in applications such...
  • Article - 26 Oct 2001
    Dioxins are a family of chemicals often formed by the combustion of chlorine containing materials. Although global dioxin levels have declined since the 70's, PVC production has increased.
  • Article - 23 Oct 2001
    416 is the most machinable grade of stainless steel. It is a low cost grade and can be used unhardened, hardened and highly tempered states. Hardness is optimised at the expense of other properties...
  • Article - 11 Oct 2001
    There are several surface coating technologies available for tool steels. These surface coatings are used in applications such as drills, taps, reamers, shank cutters, bore cutters, dies, and milling...
  • Article - 11 Oct 2001
    Superconductivity is defined and the conditions necessary for materials to become superconducting are outlined. The differences between high temperature and low temperature superconductors are also...
  • Article - 9 Oct 2001
    There are several different types of zirconia such as partially stabilised versions and tetragonal zirconia polycrystals.