Soil Properties and Design Factors Influencing Free-Phase Hydrocarbon Cleanup

1998 ◽  
Vol 32 (2) ◽  
pp. 287-293 ◽  
Author(s):  
G. D. Beckett ◽  
David Huntley
Keyword(s):  
Soil Properties ◽  
Factors Influencing ◽  
Design Factors

A computer approach to finding an optimal log landing location and analyzing influencing factors for ground-based timber harvesting

2007 ◽  
Vol 37 (2) ◽  
pp. 276-292 ◽  
Author(s):  
Marco Contreras ◽  
Woodam Chung
Keyword(s):  
Influencing Factors ◽  
Road Construction ◽  
Timber Harvesting ◽  
Volume Distribution ◽  
Forest Operations ◽  
Operations Planning ◽  
Factors Influencing ◽  
Gis Data ◽  
Harvest Volume ◽  
Design Factors

Locating a log landing is an important task in forest operations planning. Several methods have been developed to find an optimal landing location and compute a mean skidding distance, but they simplify harvest unit attributes and do not simultaneously consider multiple design factors influencing optimal landing locations. In this study, we introduce a computerized model developed to determine the optimal landing location for ground-based timber harvesting. Using raster-based GIS data, the model finds skid trails from stump to each of candidate landings and selects the best landing location that minimizes total skidding and spur road costs. The model is applied to several hypothetical harvest units with different terrain and harvest volume attributes to analyze the effects of design factors influencing optimal landing locations. Unit boundary shapes, volume distribution, the presence of obstacles, terrain conditions, and spur road construction are considered as influencing design factors.

scholarly journals Development of a Questionnaire to Investigate Study Design Factors Influencing Participation in Gait Rehabilitation Research by People with Stroke: A Brief Report

2015 ◽  
Vol 67 (3) ◽  
pp. 240-244
Author(s):  
Kara K. Patterson ◽  
Nicole Gallant ◽  
Tracey Ormiston ◽  
Chad Patience ◽  
Mandy Whitechurch ◽  
...  
Keyword(s):  
Study Design ◽  
Gait Rehabilitation ◽  
Rehabilitation Research ◽  
Factors Influencing ◽  
Design Factors
Sign in / Sign up

Export Citation Format

Share Document