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Search: L773:0004 9158 OR L773:2325 6087

  • Result 1-6 of 6
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1.
  • Bligård, Lars-Ola, 1976, et al. (author)
  • CCPE – the use of an analytical method to evaluate safety and ergonomics in maintenance of forest machinery
  • 2019
  • In: Australian Forestry. - : Informa UK Limited. - 0004-9158 .- 2325-6087. ; 82:1, s. 29-34
  • Journal article (peer-reviewed)abstract
    • Many of the hazards in forestry are due to the handling of large trees and large machinery in rough terrain and remote areas. Activities such as maintenance and repair work have been identified as especially hazardous in the highly mechanised cut-to-length method. Accidents are underreported, which emphasises the need for a systematic approach for accident prevention. A possible procedure is the use of an analytical evaluation method to identify presumptive hazardous situations and ergonomic issues before accidents can occur. Safety-critical sectors such as nuclear power and health care have invested many resources in these types of methods. The aim of this paper is to put one of those methods to test in a forestry context in a study evaluating maintenance of forest machinery. A framework for evaluation, Combined Cognitive and Physical Evaluation, known as CCPE, was selected and adapted for the study. The evaluation was successful in systematically predicting what could happen in hazardous situations with regard to use error and ergonomic issues.
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2.
  • Florentine, SK, et al. (author)
  • Post-wildfire seedling colonisation patterns in a Eucalyptus delegatensis (Myrtaceae) windthrow site at Snowy River National Park, Victoria
  • 2008
  • In: Australian Forestry. - : Informa UK Limited. - 0004-9158 .- 2325-6087. ; 71:1, s. 48-53
  • Journal article (peer-reviewed)abstract
    • During June 1998, a severe windstorm caused significant damage to a sub-alpine stand of Eucalyptus delegatensis (Myrtaceae) at the Snowy River National Park. In 2002, about 4.5 y after the windstorm, a study documented the effects on E. delegatensis and early understorey succession. In February 2003, wildfire burnt across the windthrow site and we examined the seedling recruitment patterns at windthrow-burn and burn-only sites. Our aim was to document the regeneration of the canopy-dominant E. delegatensis and to confirm that Acacia dealbata is a pioneer species that potentially interferes with or prevents regeneration of E. delegatensis. Permanent transects were established within the windthrow-burn and burn-only sites. The data suggest that the heavily disturbed (mounded) soil at the windthrow site had a strong positive influence on regeneration of both species. By providing favourable growing conditions, the disturbed soil appears to have assisted seedling survival and subsequent growth of the E. delegatensis, despite competition from dense, concurrently established A. dealbata.
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3.
  • Sotoudeh Foumani, B., et al. (author)
  • Multiple streams framework and logging policy change in the Hyrcanian forests of Iran
  • 2021
  • In: Australian Forestry. - : Taylor & Francis. - 0004-9158 .- 2325-6087. ; 84:4, s. 191-199
  • Journal article (peer-reviewed)abstract
    • The 2017 logging ban in Iran’s Hyrcanian forests represents a considerable forest policy change,which was proposed following the development of other major policies to improve natural resourcemanagement. The aim of this paper is to explain the development of the logging ban policy usingKingdon’s multiple streams framework (MSF). Qualitative methods – interviewing and documentreview – were used for data collection and analysis. The problem, politics and policy streams areshown to be linked in framing the policy change. We investigate how participants in the developmentof the policy used interlinkages between the problem, politics and policy streams to develop theirproposals and how this simplified the change process. Despite some limitations, the MSF is helpful inexplaining and analysing outcomes of natural resource management policy development processes.
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4.
  • Wu, Harry (author)
  • Effect of genotype-by-spacing interaction on radiata pine wood density
  • 2014
  • In: Australian Forestry. - : Informa UK Limited. - 0004-9158 .- 2325-6087. ; 77, s. 203-211
  • Journal article (peer-reviewed)abstract
    • Effects of spacing, family and spacing-by-family interaction on corewood and outerwood density, and annual latewood percentage from cambial age 2 to 21years in radiata pine (Pinus radiata D.Don) were studied using 55 families planted at three spacings (1x1, 1x2 and 2x3m). Significant family effects were observed for corewood and outerwood density, and latewood percentage, but spacing effects were significant only for outerwood density and latewood percentage. There was significant spacing-by-family interaction on corewood density (r(B)=0.62). Closer spacing increased latewood percentage in both corewood and outerwood and reduced corewood proportion but it did not increase wood density in corewood significantly. It was also observed that closer spacing had no effect on outerwood length, but increased wood density in outerwood significantly. Closer spacing increased heritability for wood density (1.11 +/- 0.27 vs 0.46 +/- 0.15) and increased juvenile-mature genetic correlations for wood density while increasing the negative genetic correlations between diameter at breast height (DBH) and corewood density. There were positive genetic correlations between latewood percentage and density in both corewood and outerwood. The significant genotype-by-spacing interaction for corewood density may be used to increase wood density of corewood through breeding.
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6.
  • Costagliola, Francesco, 1981, et al. (author)
  • Radio continuum and X-ray emission from the most extreme far-IR-excess galaxy NGC 1377: An extremely obscured AGN revealed
  • 2016
  • In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 594, s. A114-
  • Journal article (peer-reviewed)abstract
    • Context. Galaxies which strongly deviate from the radio-far infrared (FIR) correlation are of great importance for studies of galaxy evolution as they may be tracing early, short-lived stages of starbursts and active galactic nuclei (AGNs). The most extreme FIR-excess galaxy NGC 1377 has long been interpreted as a young dusty starburst, but millimeter observations of CO lines revealed a powerful collimated molecular outflow which cannot be explained by star formation alone. Aims. This paper aims to determine the nature of the energy source in the nucleus of NGC 1377 and to study the driving mechanism of the collimated CO outflow. Methods. We present new radio observations of NGC 1377 at 1.5 and 10 GHz obtained with the Jansky Very Large Array (JVLA) and Chandra X-ray observations. The observations are compared to synthetic starburst models to constrain the properties of the central energy source. Results. We obtained the first detection of the cm radio continuum and X-ray emission in NGC 1377. We found that the radio emission is distributed in two components, one on the nucleus and another offset by 4?5 to the south-west. We confirm the extreme FIR-excess of the galaxy, with a qFIR ? 4.2, which deviates by more than 7? from the radio-FIR correlation. Soft X-ray emission is detected on the off-nucleus component. From the radio emission we estimated for a young (
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