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Geology of the central Pueblo Mountains, Harney County, Oregon

Creator:: Tower, Dennis Brian
Abstract:: The thesis area consists of 44 square miles in southeast Harney County, Oregon. The Pueblo Mountains are located in the northwest part of the Basin and Range structural province, and are characterized by normal faults of large displacement that produced the tilted fault block mountain range. The oldest rocks exposed...
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:: ,. . .,,. ... , , 'j _ (Dennis P. Dykstra) This paper describes the analysis of data from a three-year gross time

Production rates and costs for cable, balloon, and helicopter yarding systems in old-growth Douglas-fir

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: This report describes initial results of a yarding time study for the Pansy Basin Study, a cooperative research project designed to test the performance of skylines, balloons, and helicopters operating under various conditions of timber and terrain, and over a range of silvicultural and landscape design prescriptions. Observations during the...
Resource Type:: Technical Report
Full Text:: in Old-Growth Douglas-fir COMPACT Dennis P. Dykstra Research Bulletin 18 September 1975 Forest

Yarding delays for advanced logging systems

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: Yarding delays add significantly to the time and cost required to obtain a given quantity of timber. In this study, they increased total yarding time by as much as 28 percent. As yarding system complexity increases, the frequency of delays can also be expected to increase. For one balloon yarding...
Resource Type:: Technical Report
Full Text:: Delays for Advanced Logging Systems ti Dennis P. Dykstra Research Paper 33 October 1976 7 ' 9Fc'I

Production rates and costs for yarding by cable, balloon, and helicopter compared for clearcuttings and partial cuttings

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: This report supplements Research Bulletin 18 (1975) of the Forest Research Laboratory, School of Forestry, Oregon State University. Bulletin 18 summarized analyses of data for the first field season of the Pansy Basin Study. This Bulletin extends those analyses to the second, and final, field season. Time-study observations during the...
Resource Type:: Technical Report
Full Text:: , and Helicopter Compared for Clearcuttings and Partial Cuttings Dennis P. Dykstra Research Bulletin

A revision of the genus Notiphila Fallén (Diptera:Ephydridae) from America north of Mexico

Creator:: Mathis, Wayne N.
Abstract:: The North American species of the shore fly genus Notiphila Fallen were taxonomically revised. Over 13,000 specimens were examined from throughout the Nearctic Region and information relating to the biology of many species occurring in the West was gathered from both field and laboratory studies. Previously used characters were reevaluated;...
Resource Type:: Dissertation
Full Text:: ), Dr. Pedro W. Wygodzinsky; the British Museum (Natural History), London (BM), Dr. Brian H. Cogan; the

Regenerating Oregon's forests : a guide for the regeneration forester

Creator:: Cleary, Brian D., Greaves, Robert D., Hermann, Richard K., and Oregon State University. Extension Service
Abstract:: Published September 1978. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Forester Compiled and Edited by Brian D. Cleary Robert D. Greaves Richard K. Hermann Oregon State

Coordination and cooperation between community colleges and community schools in selected community college districts

Creator:: Weiss, Marvin Wesley
Abstract:: The most important purposes of this study were to: (1) determine the extent of cooperation and coordination that currently exists in selected community colleges which have community school programs in their college districts, and (2) clarify the multi-roles of community schools and of community education in community colleges. Other purposes...
Resource Type:: Dissertation
Full Text:: successful completion of this study. The writer also is grateful to Dr. Brian Williams, Assistant Professor

The Ore bin ; Vol. 35 No. 3 (March 1973)

Creator:: Oregon. Dept. of Geology and Mineral Industries and Meyer, Herb
Abstract:: The purpose of this study of the Lyons flora is to determine the age and paleoecology of the flora through the examination and identification of the fossil plant species of the flora. The plant fossils comprising the Lyons flora were collected from a locality in the upper Thomas Creek area,...
Resource Type:: Journal
Full Text:: . Univ. Washington master's thesis. Tower, Dennis Brian, 1972, Geology of the central Pueblo Mountains

1977 Report / Forest Research Laboratory

Creator:: Oregon State University. Forest Research Laboratory
Resource Type:: Other
Full Text:: reduce such environ- mental impacts. To do this, Richard Holbo erected and instrumented a 115-foot tower

ScholarsArchive@OSU

Geology of the central Pueblo Mountains, Harney County, Oregon

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

Production rates and costs for cable, balloon, and helicopter yarding systems in old-growth Douglas-fir

Yarding delays for advanced logging systems

Production rates and costs for yarding by cable, balloon, and helicopter compared for clearcuttings and partial cuttings

A revision of the genus Notiphila Fallén (Diptera:Ephydridae) from America north of Mexico

Regenerating Oregon's forests : a guide for the regeneration forester

Coordination and cooperation between community colleges and community schools in selected community college districts

The Ore bin ; Vol. 35 No. 3 (March 1973)

1977 Report / Forest Research Laboratory

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