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Träfflista för sökning "LAR1:ltu ;srt2:(1990-1999);mspu:(article)"

Sökning: LAR1:ltu > (1990-1999) > Tidskriftsartikel

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1.
  • Aardal, Karen, et al. (författare)
  • On the resemblance between the Kornai-Liptak and cross decomposition techniques for block-angular linear programs
  • 1990
  • Ingår i: European Journal of Operational Research. - : Elsevier BV. - 0377-2217 .- 1872-6860. ; 46:3, s. 393-398
  • Tidskriftsartikel (refereegranskat)abstract
    • In this paper the resemblance is demonstrated between the master- and subproblems generated by the Kornai-Liptak algorithm and the subproblems obtained by using the cross decomposition method on linear optimization problems with block-angular structure. The significance of the similarity between these two algorithms becomes apparent considering the main disadvantage attributed to cross decomposition. In cross decomposition a master problem has to be solved from time to time since the subproblems alone do not always give a converging sequence of primal and dual solutions. But if the cross decomposition algorithm is modified in such a way that the successive primal and dual subproblem solutions are taken into consideration with equal weights, this results in the Kornai-Liptak algorithm for which convergence is guaranteed
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2.
  • Abeysekera, John D. A., et al. (författare)
  • Adaptation to discomfort in personal protective devices: an example with safety helmets
  • 1990
  • Ingår i: Ergonomics. - : Informa UK Limited. - 0014-0139 .- 1366-5847. ; 33:2, s. 137-145
  • Tidskriftsartikel (refereegranskat)abstract
    • Discomfort in the use of personal protective devices (PPD) has been one of the chief causes of their non-use. A field trial using industrial helmets was carried out to ascertain whether by training and repeated wearing subjects could experience a significant adaptation to discomfort. Ten subjects took part in the trial in a tropical environment by wearing helmets repeatedly (6 h a day) for one month. Subjective evaluations of discomfort were made at the end of the 1st, 3rd, 5th, 14th and 30th day. It was revealed that complaints of discomfort, viz. hotness, heaviness, bad fit, etc., decreased markedly throughout the 30 day period. Though positive responses of adaptation to discomfort seem to reach an optimum towards 30 days, it is difficult to draw any conclusions on the optimum period of adaptation for each discomfort factor. In relation to inherent discomforts that are extremely difficult to overcome without compromising the protection efficiency of a PPD, the principle of adaptation seems to be a very important facet which has to be developed for an effective PPD programme.
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3.
  • Abeysekera, John D.A. (författare)
  • Ergonomics and technology transfer
  • 1990
  • Ingår i: International Journal of Industrial Ergonomics. - 0169-8141 .- 1872-8219. ; 5:2, s. 181-184
  • Tidskriftsartikel (refereegranskat)
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4.
  • Abeysekera, John D.A. (författare)
  • Ergonomics for effective collaboration
  • 1997
  • Ingår i: African Newsletter on Occupational Health and Safety. - 0788-4877. ; :2, s. 27-
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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5.
  • Abeysekera, John, et al. (författare)
  • Some design recommendations to improve comfort in helmets : a case study from China
  • 1996
  • Ingår i: Journal of Human Ergology. - 0300-8134. ; 25:2, s. 145-154
  • Tidskriftsartikel (refereegranskat)abstract
    • Unless the basic user needs are satisfied in safety helmets, it is difficult to get workers to wear them habitually and for long periods. Hotness, weight and fitting problems are major wearability issues that require improvements. The enormous need for an optimally designed helmet in China prompted a case study on comfort aspects in helmets. The subjective impressions of the wearers of test helmets provided useful information for design changes to improve comfort. The heat transfer measurements through helmets indicated the need for ventilation openings to be provided on the shell of plastic helmets. Due to the advantage of low weight and good ventilation, it is recommended that cane helmets be further developed to improve protection, wearability and durability, and subsequently be produced in large scale
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6.
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7.
  • Abrahamsson, Kenneth (författare)
  • Kompetens för mångfald
  • 1999
  • Ingår i: Miljön på jobbet. - 1104-8719. ; 12:2, s. 5-11
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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8.
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9.
  • Abrahamsson, Lena (författare)
  • Bidra till jämställdheten!
  • 1996
  • Ingår i: Förskolan. - 0015-5292. ; , s. 48-49
  • Tidskriftsartikel (populärvet., debatt m.m.)
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10.
  • Abrahamsson, Lena (författare)
  • Improved working environment can be a profitable investment
  • 1993
  • Ingår i: Steel Times. - 0039-095X. ; 221:6, s. 264-266
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • On the advice of an independent consultancy specialising in ergonomics and man management, a new ladle preparation station was designed for SSAB in Lulea. Quantifiable savings close to £0.5M have resulted, plus less tangible benefits arising from a more satisfied work force
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