This program gives the log weight that the skidder can move and gives fuel consumption either in liters or gallons per turn. Slope of the skid trail, skidder weight, and skid distance must be entered into the program.
Keywords: Skidder, load capacity, logging, computer programs, cost estimating, fuel estimating, skidding forces and distances
Source: Res. Pap. NE-537. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiement Station. 7p.
The importance of considering individual machine contribution to total mill efficiency is discussed. A method for accurately calculating machine contribution is introduced, and an example is given using this method. A FORTRAN computer program to make the necessary complex calculations automatically…
Keywords: Sawmills, computer programs, mill efficiency, machine contribution
Source: Res. Pap. FPL-RP-383. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 20 pages
COMPARE is a FORTRAN computer program resulting from a study to develop methods for comparative economic analysis of alternatives in industrial wood and bark energy systems. COMPARE provides complete guidelines for economic analysis of wood and bark energy systems. As such, COMPARE can be useful to…
Keywords: Energy, computer software, economic analysis, bark, cash flow analysis, investments, computer programs, COMPARE (Computer program), fuelwood, economic aspects
Source: Gen. Tech. Rep. FPL-36. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory; 1983. 27 p.
The design of a rough mill for the production of interior furniture parts is used to illustrate a simulation technique for analyzing and evaluating established and proposed sequential production systems. Distributions representing the real-world random characteristics of lumber, equipment feed…
Keywords: models, simulation, operations research, systems analysis, plant layout, computer programs
Source: FS Research Paper NE-361. 9 pp.
The quantity of unused wood in an Ill-county area in northwestern South Carolina was projected to be more than 16 million tons annually. Wood that is unsuitable for products other than fuel amounts to nearly 9 million tons annually.The most likely energy demand by industrial plants that are good…
Keywords: biomass, computer programs, forest residues, fuelwood
Source: Gen. Tech. Rep. SE-38. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 8 p.
DEBRIS is a menu-driven, interactive computer program written in FORTRAN 77 for recording and platting survey data and for computing hydraulic variables and depths of scour and fill. It was developed for use with the USDA Forest Service's Data General computer system, with the AOS/VS operating…
Keywords: PSW4351, channel surveys, cross sections, scour and fill, computer programs
Source: Research Note PSW-396, Berkeley, California: Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture. 4 p.
This paper presents an improved version of BDEN, an interactive computer program written in FORTRAN 77 that will calculate soil bulk density and moisture percentage by weight and volume. Calculations allow for deducting coarse fragment weight and volume. The program will also summarize the…
Keywords: Soil bulk density, soil water, soil monitoring, computer programs, programming
Source: Gen. Tech. Rep. PNW-GTR-211. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Staion. 6 p
Two computer programs to help timber-harvest planners evaluate terrain for logging operations are presented. The first program, VISUAL, produces three-dimensional perspectives of a digital terrain model. The second, SLOPE, produces map-scaled overlays delineating areas of equal slope, aspect, or…
Keywords: Logging operations analysis/design, topography, timber harvest planning, computer programs, programing
Source: Gen. Tech. Rep. PNW-GTR-214. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 26 p
CROMAX simulates crosscut-first, then rip operations as commonly practiced in furniture manufacture. This program calculates cutting yields from individual boards based on board size and defect location. Such information can be useful in predicting yield from various grades and grade mixes thereby…
Keywords: Crosscut, rip, cutting yields, defect location, lumber grades, rip sawing, management, sawmilling, computer software, simulation, wood defects, CROMAX (computer program), cross cutting, lumber recovery studies, computer programs, saws and sawing, model investigations
Source: Gen. Tech. Rep. FPL-38. Madison, WI: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory: 39 pages
Computer simulation sawing programs were used to study the sawing of mathematical models of hardwood logs by me live sawing and three 4-sided sawing methods. One of the 4-sided methods simulated "grade sawing" by sawing each successive board from the log face with the highest potential grade. Logs…
Keywords: Computer simulation, mathematical modeling, hardwood sawing, computer programs, quadrant sawing, cant sawing, live sawing, Decision sawing, grade sawing, grade yield
Source: Res. Pap. FPL-356. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 1980: 28 pages