منابع مشابه
A 3D Optimal Bucking System for Central Appalachian Hardwood Species
An optimal tree-stem bucking system was developed for central Appalachian hardwood species using 3D modeling techniques. ActiveX Data Objects were implemented via MS Visual C++/OpenGL to manipulate tree data which were supported by a backend relational data model with five data tables for stems, grades and prices, logs, defects and stem shapes. Network analysis algorithm was employed to achieve...
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EPA’s research-based regulations have fostered significant strides in environmental improvement in the United States and inspired analogous endeavors around the globe. Notably, air quality has improved (https://gispub.epa.gov/air/trendsreport/2017/#highlights) over North America and Europe in recent decades, and China and India are making concerted efforts to protect the health of their citizen...
متن کاملPowered wheelchair bucking
-Usin a d u n ~ m y test driverwit11 ;i sirn~rlatecl Naccid fi>rear.rn c;rp;rble of representing either a large or zem frictiioi~ colldition, S I X powered wheelchairs were examined fc>i,r buckir~g tendencies. In the zero friction conclition, brrcking was easily inducecl in 5 of 6 testcd wheelchairs. Addillg ltiction to the simulatccl fc>rear-m prevented bucking in ;ill lestecl wheelchairs but ...
متن کاملBucking Decisions Anticipation
We consider a two-echelon timber supply chain in which the first echelon consists of several stands to be harvested and the second echelon consists of mills to be procured with logs of different length. This problem aims at minimizing harvesting and transportation costs for one production period, while satisfying demand expressed as mix of volumes of specific log types. Harvesting cost, which i...
متن کاملValue Recovery from Two Mechanized Bucking Operations in the Southeastern United States
The value recovered from two mechanized bucking operations in the southeastern United States was compared with the optimal value computed using an individual-stem log optimization program, AVIS. The first operation recovered 94% of the optimal value. The main cause for the value loss was a failure to capture potential sawlog volume; logs were bucked to a larger average small end diameter than n...
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ژورنال
عنوان ژورنال: Western Journal of Applied Forestry
سال: 1998
ISSN: 0885-6095,1938-3770
DOI: 10.1093/wjaf/13.3.85