Zobrazeno 1 - 10
of 214
pro vyhledávání: '"Eliasson, Lars"'
Publikováno v:
Silva Fennica, Vol 52, Iss 5 (2018)
According to the Swedish Timber Measurement Act, measurements affecting payments for wood fuels to landowners must be accurate and precise. In this regard, moisture content is an important quality parameter for wood chips which influences the net cal
Externí odkaz:
https://doaj.org/article/0a26d5e0d0de4b7fbf8ced25877e4798
Publikováno v:
Silva Fennica, Vol 51, Iss 5 (2017)
Rut formation caused by logging operations has been recognised as a challenge for Swedish forestry. Frequent traffic with heavy machines on extraction roads, together with a warmer climate, is one of the factors that increases the risk of rut formati
Externí odkaz:
https://doaj.org/article/35de7eec5fe24b72af4239137c0ddb69
Publikováno v:
Silva Fennica, Vol 47, Iss 2 (2013)
The study compared the effect of chipper type on productivity, power demand, fuel consumption and product quality. Tests were conducted on two commercial chipper models, a disc and a drum chipper. Both chippers had the same diameter capacity, were ap
Externí odkaz:
https://doaj.org/article/ee2cbf1f7b9c43678dde34d0e1e3166a
Publikováno v:
Silva Fennica, Vol 40, Iss 2 (2006)
Cleaning (pre-commercial thinning) costs have increased relative to logging and regeneration costs, creating a desire for rationalisation. Cleaning with robots may be a solution, but automating stem selections requires a decision support system (DSS)
Externí odkaz:
https://doaj.org/article/b526a24099db43f39efbba44a45ea349
Publikováno v:
Silva Fennica, Vol 39, Iss 4 (2005)
In silvicultural tending operations like cleaning (pre-commercial thinning), the results are irreversible, so it is important for the decisions to be consistent with the aims for the stand. To enable operational automatic stem selections, a decision
Externí odkaz:
https://doaj.org/article/eec7a539802e498ca6d478a4fa0f64a6
Autor:
Eliasson, Lars
Publikováno v:
Silva Fennica, Vol 39, Iss 4 (2005)
In Swedish forestry, final felling is usually done by a harvester and a forwarder. These machines are heavy and the risk for rutting and soil compaction can be considerable under unfavourable soil conditions. The aim of this study was to evaluate eff
Externí odkaz:
https://doaj.org/article/895e248c48cb443593fb62c0c9203c31
Publikováno v:
Silva Fennica, Vol 39, Iss 3 (2005)
Selective pre-commercial thinning (PCT) is usually carried out by workers with a brush saw in order to increase the growth of the potential crop trees (main stems) through removal of competing trees. In the last decade relative PCT costs have increas
Externí odkaz:
https://doaj.org/article/3a33402079834bab8490c6d401a8d236
Autor:
Andersson, Jonny, Eliasson, Lars
Publikováno v:
Silva Fennica, Vol 38, Iss 2 (2004)
During the last ten years interest in the harwarder has increased, however, studies have concentrated on effects of technical improvements on machine productivity. It has been noted that there is a large potential to increase the productivity through
Externí odkaz:
https://doaj.org/article/16c5838c07e641cc845cbd114ea50e69
Autor:
Mohtashami, Sima, Eliasson, Lars, Hansson, Linnea, Willén, Erik, Thierfelder, Tomas, Nordfjell, Tomas
Publikováno v:
In International Journal of Applied Earth Observation and Geoinformation April 2022 108
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