منابع مشابه
Treatment of Log Yard Runoff Impacted by Aged Logs in a Free Water Surface Constructed Wetland
Hurricanes pose a great risk to forestry, and lead to high financial losses due to destroyed wood. For example, the hurricane ‘‘Gudrun’’ devastated a large part of the forests of southern Sweden in January 2005. Windthrown logs are removed from forest, temporarily stored on log yards, and frequently sprinkled with water to avoid decay. However, the subsequent runoff may cause environmental poll...
متن کاملCharacterization of Particles in Fresh and Primary-Treated Log Sort Yard Runoff
Runoff from three southwest British Columbia (B.C.), Canada (Sunshine Coast), log sort yards was characterized to determine the colloidal and particulate fraction structures and the distribution of organic and metal constituents. Runoff from these sites, resulting from rainfall and on-site sprinkling, contains suspended and colloidal particles that are largely organic. At one log sort yard, the...
متن کاملComparison of planted soil infiltration systems for treatment of log yard runoff.
Treatment of log yard runoff is required to avoid contamination of receiving watercourses. The research aim was to assess if infiltration of log yard runoff through planted soil systems is successful and if different plant species affect the treatment performance at a field-scale experimental site in Sweden (2005 to 2007). Contaminated runoff from the log yard of a sawmill was infiltrated throu...
متن کاملPosco Yard Crane Automation
This paper describes an integrated approach for crane automation at the Kwangyang steel works, POSCO. Unmanned cranes are composed of several technologies,which include anti-sway control, precision position control, optimal trajectory computation, and coil shape recognition. Crane position while traveling and the traverse axis are controlled by PID position controllers. In order to prevent sway...
متن کاملThe General Yard Allocation Problem
The General Yard Allocation Problem (GYAP) is a resource allocation problem faced by the Port of Singapore Authority. Here, space allocation for cargo is minimized for all incoming requests for space required in the yard within time intervals. The GYAP is NP-hard for which we propose several heuristic algorithms, including Tabu Search, Simulated Annealing, Genetic Algorithms and the recently em...
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ژورنال
عنوان ژورنال: Silva Fennica
سال: 2018
ISSN: 2242-4075
DOI: 10.14214/sf.7760