Index Catalog // ScholarsArchive@OSU

Polar analysis of beam-columns for aircraft

Creator:: Jones, Walter Richard
Abstract:: The analysis of a member carrying a combination of lateral and axial loads (a "beam-column") is a problem of frequent occurrence in aircraft structural design. This thesis presents the derivation and application of the Polar method, both analytical and graphical. The method was first suggested in Germany, several years later...
Resource Type:: Masters Thesis
Full Text:: neutral axis, and positive end moments, ML and MR, are ap- plied at L and R respectively. The beam

Correlation between structural heterogeneity and arthropod biodiversity : implications for management of Pacific Northwest forests

Creator:: Madson, Stephanie Lee
Abstract:: The "old-growth controversy" in the Pacific Northwest recognized thinning as the primary silvicultural practice for land managers to produce wildlife habitat while continuing to produce timber. For the foreseeable future, forest stands will be harvested to produce forest gaps and a patchwork of trees of different ages. In order to...
Resource Type:: Masters Thesis
Full Text:: ). Relatively shallow slopes and very low r-value coefficients of correlation characterized all statistical

Role of a grass riparian zone in controlling the fate of nitrogen in a poorly drained agricultural landscape

Creator:: Davis, Jennifer H.
Abstract:: Riparian ecosystems, through their unique positions in the agricultural landscape, have the potential to mitigate nutrient loading to streams. This study was conducted to gain a better understanding of N cycling in a poorly drained Grass Riparian Zone (GRZ) and adjacent Perennial Ryegrass seed Field (PRF) in the Willamette Valley,...
Resource Type:: Dissertation
Full Text:: set a deadline. CONThJBUTION OF AUThORS Drs. Steven M. Griffith and William R. Horwath were both

Investigating the Genetic Control of Fusarium Root Rot Resistance in Snap Beans

Creator:: Huster, Abigail R.
Abstract:: Root rot diseases are a major constraint to bean (Phaseolus vulgaris L.) production around the world. Both snap beans and dry beans are affected. Root rot diseases can be caused by a variety of pathogens; however, Fusarium solani is a common causal agent. Fusarium root rot is a primary yield...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Abigail R. Huster for

Rogue pod traits in Phaseolus vulgaris

Creator:: Al-Bader, Noor
Abstract:: Snap beans are the vegetable form of dry bean (Phaseolus vulgaris L.) with low fiber, stringless and round, succulent pods that are eaten in the immature stage. Seed companies commit significant resources to maintaining purity and uniformity of snap bean cultivars. While some variability may be introduced through outcrossing (beans...
Resource Type:: Masters Thesis

The study of active sites and bubble formation frequency in nucleate boiling heat transfer

Creator:: Aoki, Tadao
Abstract:: The heat-transfer mechanism studied in this experiment was pool boiling from a flat horizontal surface facing upward with the bulk liquid at its saturation temperature. The hot-film anemometer probe was introduced to boiling heat-transfer analysis as a possible device for counting active nucleation sites and for other investigations such as...
Resource Type:: Masters Thesis
Full Text:: appreciation goes to Dr. James R. Welty for his valuable suggestions throughout this project. Also I would

An investigation into the mechanisms of adherence between borosilicate glass and steatite ceramic and between borosilicate glass and alumina ceramic

Creator:: Peck, Roger Lee
Abstract:: A qualitative evaluation was made of the adherence between borosilicate glass and the ceramics, steatite and alumina. Three basic adherence studies were performed. (1) A comparison between the x-ray diffraction patterns of the ceramic and the fused glass-ceramic powder mixture was made to determine if any new compounds were formed...
Resource Type:: Masters Thesis
Full Text:: t t. Y. . .:'r t .. ì+.Ty. ,._ r ', ; s ` `' .¡, ' ~f . 1 t;i:.. * ,^ C' 'T w `+ '' \ -°: i :1 ,1

The effect of entrance configuration on local heat transfer coefficients in subsonic diffusers

Creator:: Stoffel, Edward Oswald
Abstract:: The effects of round, square, and reentrant entrances on flow regimes and local heat transfer coefficients were determined using a symmetrical, plane-wall two-dimensional, subsonic air diffuser with one of the diverging walls heated and maintained isothermal. Flow and heat transfer studies were made at total divergence angles ranging from 0...
Resource Type:: Masters Thesis
Full Text:: SUBSONIC DIFFUSERS Abstract approved: James R. We'ty The effects of round, square, and reentrant

An explicit finite-difference solution for natural convection in air in rectangular enclosures

Creator:: Pagnani, Bruno Richard
Resource Type:: Dissertation
Full Text:: beat transfer characteristics comp Led for the \ \) Y Dr. James R. w enclo pur.. were compared

The design, construction and calibration of an instrumented surface for convective heat transfer studies

Creator:: Meyers, Stanley Kent
Abstract:: The purpose of this thesis work has been the design, construction and calibration of an instrumented surface for convective heat transfer studies. The surface is in the form of a flat plate roughly 24 inches wide by 48 inches long. It is made up of 48 individual cells, laminated side-by-side...
Resource Type:: Masters Thesis
Full Text:: STUDIES. Abstract approved: Redacted for Privacy James R. 'Welty The purpose of this thesis work has

An experimental study of natural convection in air between a vertical isothermal flat plate and a parallel insulted flat plate

Creator:: Lee, Soon Mo
Abstract:: The free convective heat transfer phenomena in air between two vertical plates 24 by 38 inches spaced 15.895 mm apart, was investigated in this experimental study. One plate was isothermal and, the other adiabatic. A quartz fiber anomometer was used for measuring local velocities in the air between the vertical...
Resource Type:: Masters Thesis
Full Text:: vertical position. V James R. elty An Experimental Study of Natural Convection in Air Between a

Some aspects of an hemophilus infection in the laboratory rat

Creator:: Burdett, Ramsay George
Abstract:: There is need for more knowledge of the naturally acquired diseases of the laboratory rat. Respiratory diseases occurring in the species were reviewed with special reference to an acute respiratory disease affecting certain rats in the Oregon State University closed Wistar rat colony which has also involved human infections. The...
Resource Type:: Masters Thesis
Full Text:: rat AN ABSTRACT OF THE THESIS OF RAMSAY GEORGE BURDETT fr, r the (Name) in Veterinary Medicine

A numerical solution for heat transfer to non-Newtonian fluids with temperature-dependent viscosity for arbitrary conditions of heat flux and surface temperature

Creator:: Cochrane, G. F. (Glenn Frank)
Resource Type:: Dissertation
Full Text:: pipe flow the dimensionless energy equation 2aT + V 8T a T IaT + BrSI,aR aR 2 R aR and the

The use of a hot film anemometer to measure velocities below five cm/sec in mercury

Creator:: Hurt, John Calvin
Abstract:: A constant temperature anemometer, utilizing quartz coated hot film probes, was used to measure velocities from .1 to 5 cm/sec. The effects on anemometer performance due to time, reimmersion, and metallic sensor coatings were examinated by repeated calibrations of the probes. Contrary to previous published results, calibration change due to...
Resource Type:: Masters Thesis
Full Text:: ames R. Welty \ Abstract approved: A constant temperature anemometer, utilizing quartz coated hot

Heat generation rates of nonfissionable materials in a nuclear reactor environment

Creator:: Zimmerman, Paul James
Abstract:: Radiation induced heat generation rates of several nonfissionable materials were measured calorimetrically in a nuclear reactor environment. The calorimeter was uniquely designed to allow many materials of grossly different heat generation rates to be measured. heat transfer characteristics of the calorimeter were determined analytically and experimentally. Materials were chosen to...
Resource Type:: Masters Thesis
Full Text:: IN A NUCLEAR REACTOR ENVIRONMENT Abstract Approved: Dr. \ amen R. Welty Radiation induced heat

Histologic effects of chronic selenium deficiency in selected tissues of laboratory rats

Creator:: Sprinker, Lucas Harry
Abstract:: The selenium-responsive syndromes and the discovery of Factor 3-selenium focused attention on selenium in metabolism. Two hypotheses have been advanced to explain the metabolic effect of selenium: 1) substitution or sparing of alpha tocopherol, and 2) a primary role in metabolism. The first hypothesis is supported by Scott and Desai,...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy J.rrie's R. Harr The selenium-responsive syndromes and the discovery of Factor 3

An experimental investigation of natural convection heat transfer from an array of uniformly heated vertical cylinders to mercury

Creator:: Dutton, Jonathan Craig
Abstract:: An experimental investigation was conducted for natural convection heat transfer in an array of uniformly heated vertical cylinders in mercury. The test section consisted of seven electrically heated cylinders of 1.365 inch diameter and 3.825 inch heated length arranged in an equilateral triangular pattern. In order to preclude side flow...
Resource Type:: Masters Thesis
Full Text:: authors and attempts made to correlate the effects of these variables on the heat loss. 13 L r 0 D

Cold trap performance : a general analysis

Creator:: Rothwell, Micheal Olin
Abstract:: A cold trap is a device used to remove certain impurities from a liquid metal by controlled precipitation of such impurities. An investigation of the thermal characteristics of laminar flow in two air-cooled cold traps was made. This investigation showed that the sodium heat transfer rate is a function of...
Resource Type:: Masters Thesis
Full Text:: for Privacy Abstract approved: James R. Wjlty A cold trap is a device used to remove certain

An experimental investigation of natural convection heat transfer from vertical flat plates in mercury

Creator:: White, Donald Henry
Abstract:: Heat transfer from a vertical flat plate in an infinite pool of mercury was investigated. Velocity profiles were measured with a hot-film anemometer and simultaneous temperature profiles measured with thermocouples in this low Prandtl number liquid metal. Constant heat flux plates at Grashof numbers of 9 x 10⁸ and 4...
Resource Type:: Dissertation
Full Text:: PLATES IN MERCURY Abstract approved: Redacted for Privacy Jan--ie; R. Welt Heat transfer from a

A numerical model for predicting energy dispersion in thermal plumes issuing from large, vertical outfalls in shallow coastal water

Creator:: Trent, Donald S.
Abstract:: A theoretical study of the heat and momentum transfer resulting from a flow of power plant condenser effluent discharged vertically to shallow, quiescent coastal receiving water is presented. The complete partial differential equations governing steady, incompressible, turbulent flow driven by both initial momentum and buoyancy are solved using finite-difference techniques...
Resource Type:: Dissertation
Full Text:: APPROVED: Redacted for Privacy Dr. James R. Welt , Professor of De artment of Mechanical Engineering In

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