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- Browsing Theses, Dissertations and Student Research Papers (College of Forestry, 1984/85 to Present) by Issue Date
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Browsing Theses, Dissertations and Student Research Papers (College of Forestry, 1984/85 to Present) by Issue Date
Now showing items 21-40 of 1053
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(1980-04)This paper describes a computer program developed for the Hewlett Packard 9830, which analyzes and computes costs and engineering data for paper plan timber harvest road networks. The program will accept up to 110 roa ...
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(1980-05-22)There is much interest in the State of Vermont in cabl.e harvesting. Since there are no time studies available for cable harvesting with various machines in Vermont, it is necessary o arrive at production and cost lev ...
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(1980-05-28)Some results of a study conducted in the Sierra Nevada Mountains west of Lake Tahoe are reported. The study measured soil impacts resulting from the use of a Caterpillar Tractor model D6D, a John Deere wheeled skidder ...
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(1980-12-10)An extension of the sensitivity analysis of linear programxning, called parametric programming is used in determining optimal sawtirnber logging system mix. The five logging systems under study are manual log-length, ...
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(1981-05-04)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 throug ...
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(1981-05-29)The use of partial cutting in the western conifers has become popular in the last decade. This has resulted in an increase in the amount of damage to the residual stand due to skyline logging. The purpose of this stud ...
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(1981-09-18)Tension relationships were determined in steel cable passed through a stump notch and anchored to another object. Tensions were measured in the cable coming into and leaving the notch with one full wrap on the stump. D ...
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(1982-00-00)In this paper, a catenary analysis of static skyline, mainline and haulback cable tensions just prior to an unsuccessful attempt by a carriage to pass an intermediate support jack is presented. Field tests were conduc ...
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(1982-03-05)The peat swamp forests of Sarawak are an important resource in the context of the socio-economic development of the state. Logging is the main activity in these forests. In the absence of an economical mechanized syst ...
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(1982-06)This paper describes a mathematical formulation and computer programs for use on hand-held programmable calculators to analyze the load carrying capacity of skyline systems, including the effects of log drag. The actu ...
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(1982-06-03)This paper is a compilation of most of the recent cable yarding production equations generated by the Forest Engineering Department at Oregon State University. Additional production equations found in the literature r ...
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(1983-04-14)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 ...
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(1983-04-26)This paper describes a study done on swinging and processing whole tree, tree length and log length pieces in a smallwood Douglas-fir thinning. Two machines were evaluated, a 70 horsepower rubber tired skidder and a ...
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(1983-11-17)The purpose of this paper is to determine the dynamic tensions that occur in the guyl ines and pendulum lines of a tethered logging bal loon. A scale model was used to represent the tethered logging balloon. During t ...
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(1984-00)This paper shows how ten easy-to-use linear skyline thinning production rate equations were obtained by transforming existing but more cumbersome turn time equations using the THIN simulation model [11). The equation ...
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(1984-05-01)Stocking levels and height growth rates of noble fir and associated species were measured on 51 clearcut study areas within the Pacific silver fir zone of the Oregon and Washington Cascades. Clearcut study areas were ...
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(1984-05-07)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 b ...
Now showing items 21-40 of 1053
