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Journal Cover Measurement and Control
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
     ISSN (Print) 0020-2940
     Published by Sage Publications Homepage  [737 journals]   [SJR: 0.151]   [H-I: 14]
  • Commercial News
    • Pages: 66 - 70
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014527663|hwp:resource-id:spmac;47/3/66
      Issue No: Vol. 47, No. 3 (2014)
  • Companion Company News: Hima-Sella Appoints John Blackwell as Managing
    • Pages: 72 - 72
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014527027|hwp:resource-id:spmac;47/3/72
      Issue No: Vol. 47, No. 3 (2014)
  • 2015 and beyond...: Elections for Honorary Secretary, Vice-Presidents and
           Members of Council
    • Pages: 73 - 73
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014527027a|hwp:resource-id:spmac;47/3/73
      Issue No: Vol. 47, No. 3 (2014)
  • New Companion Company Member
    • Pages: 74 - 74
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014527028|hwp:resource-id:spmac;47/3/74
      Issue No: Vol. 47, No. 3 (2014)
  • InstMC Membership Elections and Transfers
    • Pages: 76 - 77
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014527029|hwp:resource-id:spmac;47/3/76
      Issue No: Vol. 47, No. 3 (2014)
  • Interface News
    • Pages: 78 - 78
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014527664|hwp:resource-id:spmac;47/3/78
      Issue No: Vol. 47, No. 3 (2014)
  • Tech Talk - An Introduction
    • Authors: Otterson; D. W.
      Pages: 79 - 79
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014526870|hwp:resource-id:spmac;47/3/79
      Issue No: Vol. 47, No. 3 (2014)
  • Tech Talk: (1) Instrument Measurement Basics
    • Authors: Edwards, J. E; Otterson, D. W.
      Pages: 79 - 83
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014526870a|hwp:resource-id:spmac;47/3/79-a
      Issue No: Vol. 47, No. 3 (2014)
  • Control of Ethylene and Propylene Polymerisation Processes
    • Authors: George; A.
      Pages: 84 - 90
      Abstract: Many polymerisation processes can be accurately controlled by the regulation of chain growth through rheological measurement of average molecular weight. This article looks at the new developments in rheological analysers that can reintroduce closed-loop control into a variety of polyethylene and polypropylene manufacturing processes. Through the study of the exact flow patterns in Melt Flow Index test, computer fluid dynamics has enabled this industry standard test method to be faithfully replicated in the some of the more advanced instruments. These instruments can now be classed as analysers and serve the intended purpose of better control of the polymerisation processes. The whole of the polymer industry can benefit from this combined system of measurement and control technology. Closed-loop control of the primary polymer manufacture can ensure that the product is made to close tolerances instead of the present permitted ±10% passband. The manufacturer can benefit from improved plant efficiency by making the desired product as well as being able to guarantee a highly consistent product. The downstream processor can benefit from reduced material usage and elimination of process set-up wastage. A large variety of recyclers and the raw material manufacturers can benefit from the new technology by introducing reaction grades of polymer into the existing processes or by improving the measurement and control of those processes that are already producing reaction grades.
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014526710|hwp:resource-id:spmac;47/3/84
      Issue No: Vol. 47, No. 3 (2014)
  • Measurement, Control and Evaluation of Low-Power Contactor Switches under
           Overload Current
    • Authors: Rodriguez-Rodrigez, J. H; Guevara-Gordillo, R, Gomez-Sanchez, A. E, Vazquez-Gutierrez, I. F, Mijarez, R.
      Pages: 91 - 96
      Abstract: Load rating of contactor switches is an important issue for diverse industrial power applications requiring varied connections. This paper presents a simple procedure to evaluate the current-carrying capabilities of contactor switches under overload cyclic stress. An experimental setup is proposed to measure test current, contact voltage drop, and temperature at the contacts and cable connectors. Results are presented for ON–OFF controlled commutated current at 500% and 1000% overload of a contactor in the ON position. The attained results and the criteria for contactors selection in power applications are given.
      PubDate: 2014-04-10T02:03:06-07:00
      DOI: 10.1177/0020294014526869|hwp:resource-id:spmac;47/3/91
      Issue No: Vol. 47, No. 3 (2014)
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
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