Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Rick Mitchell"'
Publikováno v:
Croatian Journal of Forest Engineering, Vol 41, Iss 1, Pp 137-147 (2020)
A chain-flail delimber-debarker-chipper (CFDDC) was adapted for treating smaller trees than normal by replacing the standard flails with lighter ones, and by reducing flail drum rotation speed. The machine produced 16 full containers (24 t each) for
Externí odkaz:
https://doaj.org/article/80d0721f65534699b41795d1f83037f2
Publikováno v:
Croatian Journal of Forest Engineering, Vol 40, Iss 1, Pp 39-48 (2019)
There have been few comparative harvest system studies to provide a basis to understand the performance and chip quality of harvest systems used in eucalypt plantations. The study compared the CTL – cut-to-length method at the stump, WTM – whole
Externí odkaz:
https://doaj.org/article/26a9ab87f8384d02bd433f6eeeb6efa2
Publikováno v:
Journal of Forest Science, Vol 63, Iss 7, Pp 324-330 (2017)
Time consumption and productivity of a Valmet 890.3 8 wheel forwarder were evaluated on an Australian radiata pine clearfell site with a slope of 21 to 45% (12 to 24°). Cycle time was significantly related to extraction distance. Productivity was si
Externí odkaz:
https://doaj.org/article/09a679b201b64471a279a145d49b5d8a
Autor:
Rick Mitchell, Martin Strandgard
Publikováno v:
Croatian Journal of Forest Engineering, Vol 36, Iss 2, Pp 175-184 (2015)
Manual time and motion studies are the most common method to collect forest harvesting machine performance data. However, manual methods require skilled observers and are generally limited in duration, making it difficult to obtain a sufficiently lar
Externí odkaz:
https://doaj.org/article/b72843b0d3e84c21854a7c0fdfaddfe8
Publikováno v:
Croatian Journal of Forest Engineering, Vol 35, Iss 2, Pp 193-200 (2014)
Slope is a major factor affecting forest harvesting machine productivity. As ground-based harvesting methods are generally cheaper than the alternatives, forest managers need to know when ground-based harvesting equipment can be used on sloping sites
Externí odkaz:
https://doaj.org/article/c00dfc4c3bb3480a9580b363c3baf220
Publikováno v:
Croatian Journal of Forest Engineering, Vol 32, Iss 2, Pp 471-480 (2011)
A great challenge of applied research is translating results into industry innovation. Increasingly, forest managers do not have the capacity to interpret research results but prefer to be presented with tools based on the research results that can b
Externí odkaz:
https://doaj.org/article/0c1e96bd60c24cc3a27406247762ec7a
Publikováno v:
Croatian Journal of Forest Engineering, Vol 32, Iss 2, Pp 521-531 (2011)
A research trial was conducted in Victoria, Australia, to evaluate a self-levelling feller- -buncher on steep terrain and its potential to improve the overall productivity of steep terrain cable logging. The production study was conducted for a mecha
Externí odkaz:
https://doaj.org/article/9a9ce818cc9b4c99847defce5630b4ae
Publikováno v:
Forests, Vol 8, Iss 11, p 415 (2017)
The impact of the manipulation of plantation stocking density on individual tree size can affect final harvest costs and machine productivity. This paper investigated the impact of four early-age thinning treatments applied to a Eucalyptus globulus L
Externí odkaz:
https://doaj.org/article/c597f9db8a99488ca368838076f40187
Publikováno v:
Research-Technology Management. 65:27-38
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a94c31b3999faa6d760a8e0daa586bfb
https://doi.org/10.1080/08956308.2022.2026185
https://doi.org/10.1080/08956308.2022.2026185
Autor:
Kristin Brown, Steve Kinchen, Hannah Chung, Vusumuzi Maliwa, Rick Mitchell, Melissa Metz, Kiwon Lee, Suzue Saito, Hetal Patel, Tafadzwa Dzinamarira, Francis M Ogollah, Rebecca Smith, Helecks Mtengo, Carole Moore, Yen T Duong
Publikováno v:
JAIDS Journal of Acquired Immune Deficiency Syndromes. 87:S28-S35
Background and setting Electronic data capture facilitates timely use of data. Population-based HIV impact assessments (PHIAs) were led by host governments, with funding from the President's Emergency Plan for AIDS Relief, technical assistance from t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b595d3b90949c8932aec8e4f5af2d9c
https://doi.org/10.1097/qai.0000000000002703
https://doi.org/10.1097/qai.0000000000002703