Index Catalog // ScholarsArchive@OSU

The geology and stratigraphy of the lower Nanaimo group, Nanaimo, British Columbia

Creator:: Ruddiman, W. F. (William F.), 1943-
Abstract:: The western part of the Late Cretaceous Nanaimo Basin is exposed on Vancouver Island at Nanaimo, British Columbia. The five lowest members of the Nanaimo Group are present and represent a complete sedimentary cycle. The two lowest formations, the Comox and Haslam, represent the marine part of the cycle. The...
Resource Type:: Masters Thesis

The problems of implementing flood damage reduction measures in the vicinity of Malheur/Harney Lakes, Oregon

Creator:: Wahab, Amin
Abstract:: The rise of water level in Malheur Lake in Southeastern Oregon has become a major issue of concern in Harney County, where the lake is located, and on a state-wide level. The concern is due to the extensive damage caused by flood water to agricultural land, highways and roads, a...
Resource Type:: Capstone Project

A linkage finite element for nailed composite wood I-Beams and T-Beams

Creator:: Lee, Chyuan-shen
Abstract:: With current nonlinear analysis computer capabilities, this study was conducted to develop a linkage element that permits analyses of wood composite structures taking into account possible slip in the nailed joints. The finite elements chosen to represent the wood stud, plywood, gypsum and nails are described. The method as applied...
Resource Type:: Masters Thesis
Full Text:: F2 M3ht M2hs dx2 EA EA EI EK 23 dx 3 3 2 2 3 3 2 I 2 Using Eq. 2.5 and rewriting Eq. 2.9 gives s

Institutionalizing Science in Oregon : The Role of the Oregon State Academy of Sciences, 1905-1914

Creator:: Read, Richard Thomas
Abstract:: In February 1905 the Oregon State Academy of Sciences formed in Portland to promote scientific research and diffusion of scientific knowledge in Oregon. The founders also planned to assist in the discovery and development of the state's natural resources. The Academy was the first scientific society in Oregon with professional...
Resource Type:: Masters Thesis
Full Text:: of Sciences (1892-1897?) and before the professionally oriented Oregon Academy of Science (1943

Wave interaction with rubble mound structures

Creator:: Yoo, Chul-hee
Abstract:: The objective of this study is the development and verification of an analytical solution for an unsteady flow field partially occupied by a permeable structure. Flow is induced by a small amplitude incident wave train and the permeable structure may contain multilayered anisotropic but homogeneous material. The analytical solution developed...
Resource Type:: Masters Thesis

Evaluation of ocean wave-induced liquefaction in a large scale wave flume

Creator:: Thielen, David Leo
Abstract:: Ocean waves propagating over cohesionless seabed deposits produce cyclic shear stresses within the deposit. Under certain conditions these stresses may cause a progressive build-up of pore pressure. Pore pressure accumulation can result in liquefaction or a substantial decrease in the effective stress with attendant large deformations of the seabed deposit....
Resource Type:: Masters Thesis
Full Text:: pressure. Equation 2.7 is the one-dimensional consolidation equation (Terzaghi, 1943) with a source term

The static and cyclic pullout behavior of plate anchors in fine saturated sand

Creator:: Petereit, Ralph A.
Abstract:: Anchors resistant to tensile loads are commonly used in civil engineering practice. Anchors in the marine environment are most frequently used for the mooring of vessels. Only recently, with the expansion of the offshore industry, has the need to develop more reliable anchor systems become necessary. Embedded plate anchors are...
Resource Type:: Masters Thesis

Structure of mature Douglas-fir stands in a western Oregon watershed and implications for interpretation of disturbance history and succession

Creator:: Klopsch, Mark Warren
Abstract:: The structure of a mature Douglas-fir (Pseudotsuga menziesii) forest in a watershed in the western Cascades of Oregon was examined. Two age classes were detected in the stand, the oldest originating about 1855 after an extensive fire and the younger following a second fire about 1895 Although the trees in...
Resource Type:: Masters Thesis

Long cables under steady ocean loads with coupled tension/torsion

Creator:: Simpson, Randall C.
Abstract:: Cables used in the ocean are often constructed of helically wound wires or strands. Tension in the cable induces torque and/or rotation about its longitudinal axis. A method is presented to determine the tension, torque, location and angular orientation of points on the cable centerline, using a shooting method algorithm...
Resource Type:: Masters Thesis
Full Text:: -curva- ture relationships: M 2 = EI 2 K 2 M 3 = EI 3 K 3 Thus, from Eqs. (2.1.3) and (2.1.4

Nonlinear dynamic response of bottom-land deep ocean pipelines

Creator:: Zimmerman, Michael E.
Abstract:: A finite element formulation is developed for the prediction of the large displacement response of pipelines which are placed upon irregularly contoured marine sediments and are subsequently subjected to episodic hydrodynamic loads. The equations of motion during each episode of extreme wave activity are obtained from a variational form of...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The geology and stratigraphy of the lower Nanaimo group, Nanaimo, British Columbia

The problems of implementing flood damage reduction measures in the vicinity of Malheur/Harney Lakes, Oregon

A linkage finite element for nailed composite wood I-Beams and T-Beams

Institutionalizing Science in Oregon : The Role of the Oregon State Academy of Sciences, 1905-1914

Wave interaction with rubble mound structures

Evaluation of ocean wave-induced liquefaction in a large scale wave flume

The static and cyclic pullout behavior of plate anchors in fine saturated sand

Structure of mature Douglas-fir stands in a western Oregon watershed and implications for interpretation of disturbance history and succession

Long cables under steady ocean loads with coupled tension/torsion

Nonlinear dynamic response of bottom-land deep ocean pipelines

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