Index Catalog // ScholarsArchive@OSU

Wood properties and use of sensor technology to improve optimal bucking and value recovery of Douglas-fir

Creator:: Acuna, Mauricio A.
Abstract:: There are a number of wood properties which affect the quality of forest products such as lumber and pulp. Of these, wood density is considered by some to be the single most important physical characteristic because it is an excellent predictor of strength, stiffness, hardness, and paper-making capacities. Accurately assessing...
Resource Type:: Dissertation

Douglas-fir hydraulic architecture and relationships among xylem properties at multiple scales via a Bayesian analysis

Creator:: Dunham, Sonya M.
Abstract:: This study investigated variation in xylem anatomy, hydraulic properties, and the relationship between anatomy and properties within Douglas-fir trees at multiple scales. The hierarchical scales in the study included fertilization treatments (fertilized and unfertilized), trees within the treatments, and positions within the trees. Tracheid diameter, tracheid length, percent latewood, number...
Resource Type:: Masters Thesis
Full Text:: Models for mean ln(K).............................................................................. 15

Hybridized framing to modify load paths and enhance wood shearwall performance

Creator:: Bultena, Sarah M.
Abstract:: Heavy timber framing relies primarily on bracing to withstand lateral loads due to earthquakes and wind events. Bracing configurations in heavy timber framed buildings vary widely and include cross bracing, knee bracing, and other geometries. Many heavy timber frames constructed during colonial American times are still standing, exceeding the expected...
Resource Type:: Masters Thesis
Full Text:: different floor levels based on the weight and height of each floor and an exponent, k, which relates to

Evolution of a pheromone signaling system in the salamander genus Plethodon (Amphibia: Plethodontidae)

Creator:: Picard, Amy L.
Abstract:: Animal signaling systems frequently utilize multiple traits to produce and transmit a signal. These system elements may span multiple levels of organization. Functional integration of these traits may be expected to generate concordance in evolutionary pattern among system elements, such that evolutionary change in one system component is correlated with...
Resource Type:: Masters Thesis
Full Text:: : Reproductive isolation and speciation in plethodontid salamanders. Herpetologica 49, 216-228. Beachy, C. K

Wood materials and shearwalls of older light-frame residential structures

Creator:: Carroll, Cameron T.
Abstract:: Light-frame construction practices and materials have changed greatly over the past 100 years. Contemporary research has focused on modern construction; thus, we know a great deal about the behavior of modern lightframe buildings under lateral forces. However, there are many light-frame buildings that were built prior to the introduction of...
Resource Type:: Masters Thesis
Full Text:: vibration modulus of elasticity (MOE) of old and new floor joists. The old joists were all 2 by 16-in

Norbert Wiener and the growth of negative feedback in scientific explanation : with a proposed research program of "cybernetic analysis"

Creator:: Hellman, Walter Daniel
Abstract:: Negative feedback has become ubiquitous in science both as a technique and as a conceptual tool. As a technique, negative feedback has a long history; devices based in its use were made in antiquity. It has only been during the last century, however, that rigorous quantitiative methods have become associated...
Resource Type:: Dissertation

Geneticist L.C. Dunn : politics, activism, and community

Creator:: Gormley, Melinda (Melinda Brooke)
Abstract:: L. C. Dunn (1893-1974) spent most of his scientific career conducting research in developmental genetics as a member of the Zoology Department at Columbia University in the City of New York. He had an accomplished scientific career researching mutations in mice, which earned him respect from other geneticists and scientists....
Resource Type:: Dissertation
Full Text:: . Other archivists of note are Jocelyn K. Wilk at the University Archives and Columbiana Library at

Phenotypic evolution as a response to thermal ecology in the ferocious waterbug Abedus herberti (Hemiptera: Belostomatidae)

Creator:: Pelegrin, Arthur Lomis
Abstract:: Over 150 years ago, C. Bergmann observed a within-species pattern of increasing body size as elevation and latitude increased. Bergmann’s data came from numerous endothermic taxa, but the pattern has since been documented among numerous poikilotherms and invertebrates. The ferocious waterbug Abedus herberti Hidalgo (Hemiptera: Belostomatidae) lives in isolated populations...
Resource Type:: Masters Thesis
Full Text:: been my privilege. Dr Debra Finn has assisted me tremendously in working with sequence data and

A Public Elementary School as a Cultural Context : Japanese Children Learning to Perceive their Environment

Creator:: Sugai, Taichi
Abstract:: This thesis examines the cultural context in which Japanese children are constructing their own perspective of the environment because in the development of environmental education in Japan, the perspectives of children and teachers have not been taken into consideration. Although educators have made efforts to give direction to environmental education,...
Resource Type:: Masters Thesis

Strain distribution in OSB and GWB in wood frame shear walls

Creator:: Sinha, Arijit
Abstract:: The overall goal of this study was to gain an insight into the load sharing aspect between oriented strand board (OSB) and gypsum wall board (GWB) in shear wall assembly during racking load. More specifically the objectives of the study were to: (1) evaluate qualitatively the load sharing between OSB...
Resource Type:: Masters Thesis
Full Text:: ............................................................................................................ 134 LIST OF APPENDIX TABLES Table Page A1. MOE values 2x4(S-series

ScholarsArchive@OSU

Wood properties and use of sensor technology to improve optimal bucking and value recovery of Douglas-fir

Douglas-fir hydraulic architecture and relationships among xylem properties at multiple scales via a Bayesian analysis

Hybridized framing to modify load paths and enhance wood shearwall performance

Evolution of a pheromone signaling system in the salamander genus Plethodon (Amphibia: Plethodontidae)

Wood materials and shearwalls of older light-frame residential structures

Norbert Wiener and the growth of negative feedback in scientific explanation : with a proposed research program of "cybernetic analysis"

Geneticist L.C. Dunn : politics, activism, and community

Phenotypic evolution as a response to thermal ecology in the ferocious waterbug Abedus herberti (Hemiptera: Belostomatidae)

A Public Elementary School as a Cultural Context : Japanese Children Learning to Perceive their Environment

Strain distribution in OSB and GWB in wood frame shear walls

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