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Results 21 - 30 of 1114 for Measuring Controlling Devices
  • Article - 23 Nov 2001
    Materials with grain sizes in the order of a billionth of a meter are called nanomaterials, or nanocrystalline materials, which can be used for a range of structural and non-structural applications.
  • Article - 17 Jul 2001
    Sir Humphrey Davy discovered barium as an element in 1808. In its elemental form it is soft and silvery white resembling lead. It belongs to the alkaline earth group and is chemically similar to...
  • Article - 17 Jul 2001
    Americium isotope Am241 was identified by a group of researchers at the University of Chicago in 1944 and was the fourth trans-uranium element to be discovered. It is used as a neutron and gamma...
  • Article - 17 Jul 2001
    Actinium occurs naturally in association with uranium minerals. Actinium-227 is a decay product of uranium-235. It is commercially vauable as a source of neutrons.
  • Article - 7 Nov 2009
    Gold is used in thermocouples both for high- and low-temperature measurements. Gold-alloy wires have also been utilized for potentiometers.
  • Article - 20 Sep 2005
    Multi-dimensional Al2O3/Ni nanocomposites with preserved multifunctional magnetic properties are successfully fabricated by an aqueous monomer suspension casting and coating processes. An optimal...
  • Article - 29 Jul 2004
    Researchers at McGill University have developed a new process for producing carbon nanotubes. The process has potential to be scaled up to commercial levels and is based on thermal process technology....
  • Article - 20 Jul 2001
    Bismuth is one of few metals that increase in volume upon solidification. It is the most diamagnetic of metals and has the second lowest thermal conductivity. Uses are catalysts, fire protection,...
  • Article - 11 Sep 2009
    The article provides information on the problems that occur in a hydraulic system due to aeration and cavitation. It also outlines how costly repairs can be avoided.
  • Article - 23 Jul 2001
    Platinum (Pt) was discovered by Ulloa in 1735 and Wood in 1741. Platinum occurs as such naturally, together with negligible amounts of palladium, iridium, rhodium, osmium, and ruthenium.