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Filtering by: Advisor Olsen, Eldon Remove constraint Advisor: Olsen, Eldon Decade 1980-1989 Remove constraint Decade: 1980-1989 Degree Name Master of Forestry (M.F.) Remove constraint Degree Name: Master of Forestry (M.F.)

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Evaluation of personal computer-based software for analyzing northwest harvest systems

Creator:

Krause, Joel Alexander

Abstract:

The Northwest timber industry is in a transition to a smallwood harvest environment. As the Northwest moves to smaller average diameter stands log values have decreased and harvest costs have increased. In an effort to increase profitability, Northwest loggers are beginning to "mechanize". The profitable operation of a mechanized harvest...

Resource Type:

Capstone Project
The effects of swinging and sorting with a skidder on yarding and loading efficiency in small diameter Douglas-fir

Creator:

McIntire, John Charles

Abstract:

This study evaluated the impact of using a rubber-tired skidder to keep the landing clear by sorting and decking the logs along the road prior to loading by a self-loading truck. The evaluation was accomplished through detailed time studies conducted on a Koller K-300 yarder, a Crown Super 3000 self-loader,...

Resource Type:

Capstone Project
The choice of the optimal sawtimber harvesting system (a theoretical approach based on mathematical programming)

Creator:

Mikkonen, Esko

Abstract:

An extension of the sensitivity analysis of linear programming, called parametric programming is used in determining optimal sawtimber logging system mix. The five logging systems under study are manual log-length, system, log-length processor and harvester systems, manual tree-length system and tree-length harvester system. In conditions where it is not exactly...

Resource Type:

Capstone Project
An economic model of soil compaction in forestry

Creator:

Stewart, Rodney Aloysius

Abstract:

A model is presented which predicts the net present value of a stand level multi-entry harvest plan. The model accounts for potential volume losses due to harvest-related soil compaction. The goal of this project was to answer five economic questions about the issue of soil compaction in forestry. The five...

Resource Type:

Capstone Project
A comparison of productivity for whole tree, tree length, and log length skyline thinning in 35 year old Douglas-fir stands of western Oregon

Creator:

Putnam, Nathan E.

Abstract:

Whole tree and tree length thinning are two alternatives which are likely to be more productive and may prove to be more cost effective than conventional log length thinning. The purpose of this study was to evaluate and compare log length, tree length, and whole tree thinning techniques in terms...

Resource Type:

Capstone Project
Predicting skidder productivity : a mobility approach

Creator:

Gibbons, Daniel J.

Abstract:

The principles of mobility are applied to the forest setting to simulate the movement of logs with a rubber tired-skidder. A computer program was written to perform the analysis . Vehicle-terrain and logterrain interactions are the resistances which must be overcome by the available vehicle power. The rate at which...

Resource Type:

Capstone Project
Cable thinning in young forests with average DBH of 5-8 inches : a case study

Creator:

Gabrielli, Robert Michael

Abstract:

This paper describes the results of a time-study conducted near Grand Ronde, Oregon, to determine the production rates and total harvesting costs of a cable thinning in a young stand. The stand had a species mix of 48 percent western hemlock (Tsuga. heterophylla- (Raf.) Sarg.), 45 percent Douglas-fir (Pseudotsuga meuziesil...

Resource Type:

Capstone Project
Producing pulp quality chips in the woods: a short term study on three portable delimber-debarker systems

Creator:

Bassler, Gregory A.

Abstract:

The Pulp and Paper Industry in the Pacific Northwest is obtaining an increasing share of its fiber supply by chipping small diameter trees from thinnings, insect damaged stands, and stand conversions. Since most of the mills require pulp grade fiber to contain less than 0.5% bark, the timber must be...

Resource Type:

Capstone Project
A production study of the pendulum balloon logging system

Creator:

Ammeson, James E.

Abstract:

The purpose of this paper is to compare the estimated production of the pendulum swing logging system to the production of a conventional balloon logging system. Cycle Time is established for the conventional system by time study techniques. A combination approach is used to model the pendulum system. A computer...

Resource Type:

Capstone Project

Limit your search

Academic Affiliation

Forest Engineering9

Advisor

Olsen, Eldon[remove]9

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1980 to 1988

View distribution

Committee Member

O'Leary, John E.1
Phelps, Robert1
West, Tom1

Creator

Ammeson, James E.1
Bassler, Gregory A.1
Gabrielli, Robert Michael1
Gibbons, Daniel J.1
Krause, Joel Alexander1
more Creators »

Date

Date range begin – Date range end

Current results range from 1980 to 1988

View distribution

Decade

1980-1989[remove]9

Degree Field

Forest Engineering9

Degree Level

Master's9

Degree Name

Master of Forestry (M.F.)[remove]9

Language

English [eng]9

Peer Reviewed

No9

Resource Type

Capstone Project9

Rights Statement

Copyright Not Evaluated9

Subject

Log transportation -- Mathematical models1
Logging -- Costs -- Mathematical models1
Logging -- Mathematical models1
Logging, Skyline -- Equipment and supplies -- Cost effectiveness -- Case studies1
Logging, Skyline -- Oregon -- Cost effectiveness -- Case studies1
more Subjects »

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