Index Catalog // ScholarsArchive@OSU

Mathematical model for determining the position and line tensions for a tethered logging balloon

Creator:: Avery, Robert B.
Abstract:: A program was developed on a desktop computer to determine the cable tensions and position of a balloon tethered by two or more guylines. The program was specifically applied to the analysis of the static load lifting capability of the Pendulum Swing Balloon System. This system uses a tethered balloon...
Resource Type:: Masters Thesis

Production rates of skyline, balloon, and helicopter yarding systems from gross time study analysis

Creator:: Curtis, Richard James
Abstract:: This paper describes the analysis of data from a three-year gross time study of skyline, balloon, and helicopter yarding systems operating in Western Oregon. Data collection activities were designed and supervised by the Pacific Northwest Forest and Range Experiment Station, U.S.D.A. Forest Service. The specific logging systems studied were running...
Resource Type:: Masters Thesis
Full Text:: Station, U.S.O.A. Forest Service. The specific logging systems studied were running skyline, North

Simulation of mechanized log harvesting systems

Creator:: Wiese, Christoph
Abstract:: The focus of this research is to develop a personal computer based simulation model of the mechanized logging process, from felling until the log arrives at the sawmill. The SLAM II simulation language is used for modeling, and the main emphasis is on the overall performance of this system, and...
Resource Type:: Masters Thesis
Full Text:: simulation model of the mechanized logging process, from felling until the log arrives at the sawmill. The

A model for the determination of optimum setting dimensions for tractor yard/swing operations

Creator:: Nickerson, Devon B.
Abstract:: A problem of interest to forest managers is the optimum arrangement of truck roads and landings for economical logging operations. This problem becomes more complex if,a combined yarding and swinging operation is considered. I,t is possible to formulate a mathematical model to express the cost per unit volume for a...
Resource Type:: Masters Thesis
Full Text:: considered. It is possible to formulate a mathematical model to express the cost per unit volume for a

Linking a growth model with logging production costing

Creator:: Bergan, Ernest E.
Abstract:: A model (called MERLIN) is presented that can allow the resource manager to consider the combined effects of silvicultural treatments and their effect on expected logging production and costs. This integrated analysis takes place within the framework of personal computer software readily available to most managers. This integration is accomplished...
Resource Type:: Masters Thesis

Performance of a smart direct fire penetrator using a ram air controlled mechanism

Creator:: Chandgadkar, Siddharth Suhaschandra
Abstract:: The effectiveness of a direct fire penetrator projectile equipped with an actively controlled ram air mechanism is investigated through dynamic simulation. The ram air control mechanism consists of a rotary sleeve valve which directs air flow from an inlet at the center of the nose to side ports. The projectile...
Resource Type:: Masters Thesis
Full Text:: the system model. It is shown that the ram air control mechanism provides sufficient control

Testing two applications of image analysis for use in species-independent biomass equations for western Oregon forests

Creator:: Gray, John Edward, 1946-
Abstract:: Remote sensing technologies have proven useful and cost-efficient for quantifying various forest vegetation characteristics over multiple scales. However, significant limitations were encountered in each of two related experiments conducted to explore their potential to supplement or replace traditional, single-species biomass equations for estimation of ground vegetation and tree overstory on...
Resource Type:: Masters Thesis

A multivariate control solution to the mixed species/diameter class thinning and final rotation problem

Creator:: Cousar, Paul K.
Abstract:: The algorithm RLS-PLUS was developed to yield solutions to the multivariate control problem of diameter and species optimization for mixed conifer and hardwood stands. The problem is specified with twenty-five state variables consisting of five species groups with four merchantable diameter classes and one unmerchantable class. This gives twenty diameter...
Resource Type:: Masters Thesis

Modeling biomass transport on single lane forest roads and monitoring GPS accuracy for vehicle tracking under different forest canopy conditions

Creator:: Simwanda, Matamyo
Abstract:: The transportation of wood and biomass resources from landing and other collection locations to processing and distribution sites is a substantial cost within the wood supply chain. These high costs provide a basis for research aimed at improving biomass transportation planning decisions and potentially reducing biomass transportation costs. Chip vans...
Resource Type:: Masters Thesis
Full Text:: approach was the travel time model presented by Bryne et al. (1960) in the USDA Forest Service Logging

Using a heuristic programming method for incorporating wildlife habitat constraints into spatial harvest scheduling on the Elliott State Forest

Creator:: Lennette, Marie
Abstract:: The Elliott State Forest, located in the Coast Range of Oregon, is currently revising their Habitat Conservation Plan (HCP). Many of the constraints in the HCP are spatial, requiring identification of specific parcels in order to limit activity along habitat reserves, limit harvest opening size, and to coordinate activities within...
Resource Type:: Masters Thesis
Full Text:: harvest units. To model the Elliott, the state forest planning team divided the 93,000 acres into 17

ScholarsArchive@OSU

Mathematical model for determining the position and line tensions for a tethered logging balloon

Production rates of skyline, balloon, and helicopter yarding systems from gross time study analysis

Simulation of mechanized log harvesting systems

A model for the determination of optimum setting dimensions for tractor yard/swing operations

Linking a growth model with logging production costing

Performance of a smart direct fire penetrator using a ram air controlled mechanism

Testing two applications of image analysis for use in species-independent biomass equations for western Oregon forests

A multivariate control solution to the mixed species/diameter class thinning and final rotation problem

Modeling biomass transport on single lane forest roads and monitoring GPS accuracy for vehicle tracking under different forest canopy conditions

Using a heuristic programming method for incorporating wildlife habitat constraints into spatial harvest scheduling on the Elliott State Forest

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