Current issue: 58(1)

Under compilation: 58(2)

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Silva Fennica 1926-1997
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Acta Forestalia Fennica
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Articles by Jimin Tan

Category : Article

article id 5304, category Article
Jimin Tan. (1987). A method to evaluate productivity of logging machines. Silva Fennica vol. 21 no. 1 article id 5304. https://doi.org/10.14214/sf.a15461
Keywords: productivity; processor; time studies; evaluation of logging machines; Pika 35; mathematical model
Abstract | View details | Full text in PDF | Author Info

This study deals with the evaluation of logging machines. The analyses were based on the results of a productivity study with special reference to a PIKA 35 processor, a delimber-bucker, working in Kyröskoski forest area in Finland. Factors affecting the productivity of the machine were surveyed. Mathematical models for determining the productivity were developed and their practical applications to the particular problem under study was demonstrated.

The PDF includes an abstract in Finnish.

  • Tan, E-mail: jt@mm.unknown (email)

Category : Article

article id 7673, category Article
Jimin Tan. (1992). Planning a forest road network by a spatial data handling-network routing system. Acta Forestalia Fennica no. 227 article id 7673. https://doi.org/10.14214/aff.7673
Keywords: spatial analysis; road network; wood transport; forest roads; locating
Abstract | View details | Full text in PDF | Author Info

The basic objective in planning a forest road network is to minimize the total cost of terrain transportation, road transportation, road construction and maintenance by controlling the road location, road network density and road quality, besides environmental and ecological considerations. Studies on the optimization of forest road network have encountered difficulties in taking into account the spatial diversity of forest terrain and stands. The spatial data handling-network routing system developed in this study proves to be useful in assisting forest managers to carry out the planning of forest road networks by covering the spatial and economic analysis.

The PDF includes a summary in Finnish.

  • Tan, E-mail: jt@mm.unknown (email)

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