Digital Commons Network^™

Stratigraphy, Geochronology, And Tectonics Of The Salt Lake Formation (Tertiary) Of Southern Cache Valley, Utah, Kristine A. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study synthesizes the deposition and tectonic evolution of the Tertiary deposits in southern Cache Valley, a narrow, north-trending valley in the northeastern Basin-and- Range Province. The surrounding mountains consist of Proterozoic and Paleozoic sedimentary rocks. Southern Cache Valley is an east-tilted half-graben. The oldest Tertiary sediments are on the west side of the basin, and the overall dip is to the east.

The Late Miocene to Early Pliocene Salt Lake Formation (Tsl) accumulated above the thin (to absent) Early to Middle Eocene Wasatch Formation (Tw) and the newly identified Fowkes and Norwood Tuff equivalents (Tfn; late Middle Eocene to …

Geometric Aspects Of Second-Order Scalar Hyperbolic Partial Differential Equations In The Plane, Martin Jurás

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this dissertation is to address various geometric aspects of second-order scalar hyperbolic partial differential equations in two independent variables and one dependent variable

F(x, y, u, u_x, u_y, u_xx, u_xy, u_yy) = 0

We find a characterization of hyperbolic Darboux integrable equations at level k (1) in terms of the vanishing of the generalized Laplace invariants and provide an invariant characterization of various cases in the Goursat general classification of hyperbolic Darboux integrable equations (1). In particular we give a contact invariant characterization of equations integrable by …

Effectiveness Of Grid Systems For Pheromone-Trapping Sparse Gypsy Moth Populations In Mountainous Terrain In The Intermountain West, Colleen Keyes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two field experiments determined an effective intertrap distance (ITD) for early detection and delimitation sparse gypsy moth (Lepidoptera: Lymantriidae, Lymantria dispar L.) populations in mountainous terrain. This study found that current Animal and Plant Health Inspection Service trapping guidelines are not sufficient for early detection of small gypsy moth populations in mountainous terrain. Detection trapping in mountainous terrain should have an ITD of not more than 804 m. Delimiting trapping should use a grid design with an ITD of 152 m.

A related study determined natural adult male mortality in the climate of the intermountain West, which includes Utah, Nevada, …

Bark Beetle Activity In Douglas-Fir, Pseudotsuga Menziesii Var. Glauca Mirb. (Franco), Following The 1994 Beaver Mountain Fire, Catherine A. Cunningham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The 1994 Beaver Mountain fire ignited the canopies of subalpine fir, Abies lasiocarpa, and spread ground fire into adjacent Douglas-fir forests, Pseudotsuga menziesii var. glauca. Despite shorter flight seasons due to lower annual temperatures and persistent snow, the Douglas-fir bark beetle, Dendroctonus pseudotsugae Hopkins, attacked a range of moderately fire-injured host conifers. Logistic regression models illustrated that in 1995 associated bark beetles selected large diameter Douglas-fir with 60-80% bole char, 60-80% crown volume scorch, and 50-70% probability of mortality due to fire. In 1996 beetle preference shifted to smaller diameter trees with lighter fire injury. Tree size was …

Evaluation Of Physical And Behavioral Traits Of Llamas (Lama Glama) Associated With Aggressiveness Toward Sheep-Threatening Canids, Sandra M. C. Cavalcanti

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Canid predation poses a serious threat to the sheep industry in the United States. Llamas are becoming popular among livestock producers as part of their predation management programs but there is little information on the factors associated with llama guarding behavior. This study examined several physical and behavioral attributes of individual llamas to assess whether they might predict the aggressiveness llamas display coward canids. The study was conducted in three phases. The first involved determining some physical and behavioral traits of individual llamas. Twenty individuals were randomly assigned to one of four groups (n = 5/group) and frequencies with which …

Effects Of Flow Augmentation On Channel Morphology And Riparian Vegetation In The Upper Arkansas River Basin, Colorado, Dewitt S. Dominick

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study examined historic change of riparian plant communities and fluvial geomorphic response of gravel-bedded streams and their floodplains to over 50 years of hydrologic disturbance. Four tributary basins of the Arkansas River were analyzed. Lake Creek, Clear Creek, and Cottonwood Creek are drainages similar in area, physiography, and vegetation composition. However, Lake Creek may receive an instantaneous discharge of approximately 28 m3sec^-1 from the Twin Lakes tunnel, over three times the normal flow of the stream during spring runoff. By contrast, Clear Creek and Cottonwood Creek, nonaugmented streams, were used as controls to compare the historic and present …

Optimizing Conjunctive Use And Groundwater Yield, Richard C. Peralta, Rahman Rahimzadegen, Narendra K. Tyagi

Civil and Environmental Engineering Faculty Publications

Advances in computer power and mathematical optimization procedures can improve planning and developing sustainable irrigation systems. Simulation and optimization models can help plm1 groundwater and conjunctive use strategies to best achieve management goals while satisfying mm1agement a11d physical constraints. Simulation/optimization models that couple calibrated flow and transport simulation models with optimization algorithms can help design the best water management strategies. Mm1agers can be relatively sure that the groundwater system will respond acceptably when appropriate procedures are employed to develop the water management strategies. Presented case studies illustrate situations in which developed strategies simultaneously address conflicting management goals such as: maximizing …

Structural Design Of A Crashworthy Energy Absorbing Passenger Seat For A Large Transport Aircraft Using Large Displacement, Nonlinear Material Finite Element Analysis, Javier Fuentes

Master's Theses - Daytona Beach

Federal Aviation Regulations certification criteria for transport aircraft seats require performing dynamic tests using anthropomorphic test dummies. Floor decelerations of the tests are 16g forward with the seat tracks misaligned by up to 10 degrees and 14g downward at a pitch angle of 30 degrees. In this project the dynamic response of the passenger/seat/restraint system is modeled using nonlinear finite element analysis. The interference between a dummy model and the seat is modeled using a contact interaction algorithm. This algorithm did not converge and multiple-point constraints were used to transfer the dummy's inertia load. This approach was validated with the …

Mass Balance Of Major, Minor And Trace Elements During Afbc Combustion Of Fuels, Qianwen Cao

Masters Theses & Specialist Projects

The proposed ASTM procedures for the determination of 13 major and minor., and 11 trace elements, in solid coal and coke combustion residues by inductively coupled plasma-atomic emission spectrometry (ICP-AES) were checked for routine use. In this study, the ICP analysis values and XRF analysis values of major and minor elements in two kinds of coal and two kinds of limestone were compared. It was shown that over 95% closure of the mass balances of the 24 major, minor, and trace elements was obtained with the proposed ASTM procedure. Also, it was demonstrated that trace elements may be lost through …

Coastal Circulations Driven By River Outflow, Shuliang Zhang

HCNSO Student Theses and Dissertations

Variable-density, 1^1/2- and 2^1/2- layer models are used to examine the behavior of plumes resulting from a fresher outflow of transport M_r and salinity S_r into a pre-existing oceanic layer of initial thickness H₁ and salinity S₁. It is found that the plumes exhibit a variety of features depending on conditions of the outflow, the situation of the ambient ocean, and external forcing. Perhaps the most interesting feature is that the plume can flow along the upstream (to the left of the river mouth, looking seaward in the northern hemisphere) coast …

May 1997 General Studies Council Minutes, University Of Nebraska At Kearney General Studies Council

General Education Council

No abstract provided.

Thirty-First Commencement 1997, Sacred Heart University

Commencement Programs

Program for the Graduate and Undergraduate ceremonies held May 18, 1997.

Teachers' Expressed Beliefs And Practices About Developmentally Appropriate Education Of Multi-Age And Single-Age Classrooms, Dale P. Lynch

Electronic Theses and Dissertations

The purpose of this study was to determine the expressed beliefs and practices about developmental education from early childhood teachers in Tennessee's First Educational District. A questionnaire measuring expressed beliefs and practices was administered to teachers (kindergarten through third grade) in public schools with both multi-age and single-age classrooms. The area of teaching specialization along with the number of years taught within the organization structure are paramount in the study. Teachers' expressed beliefs concerning the amount of outside influences with planning and implementing instruction are also noted. Educators were asked to respond to 36 likert-type items regarding their beliefs about …

Comparison Of Pellets Versus Collected Birds For Sampling Diets Of Double-Crested Cormorants, Clayton E. Derby, James R. Lovvorn

Condor

No abstract provided.

Utb/Tsc This Week 1997-05, University Of Texas At Brownsville And Texas Southmost College. Office Of News And Information

UTB/TSC Archives - This Week Newsletter

No abstract provided.

Performing Bmmc Permutations Efficiently On Distributed-Memory Multiprocessors With Mpi, Thomas H. Cormen

Computer Science Technical Reports

This paper presents an architecture-independent method for performing BMMC permutations on multiprocessors with distributed memory. All interprocessor communication uses the MPI function MPI_Sendrecv_replace(). The number of elements and number of processors must be powers of 2, with at least one element per processor, and there is no inherent upper bound on the ratio of elements per processor. Our method transmits only data without transmitting any source or target indices, which conserves network bandwidth. When data is transmitted, the source and target processors implicitly agree on each other's identity and the indices of the elements being transmitted. A C-callable implementation of …

The North Dakota Bridges Project: Middle Level Education Reform Efforts In Six Schools, James W. Stenehjem

Theses and Dissertations

No abstract provided.

Poem No. 77, May 1997, Huntsville Literary Association (Huntsvile, Ala.)

POEM

The Huntsville Literary Association was founded in 1967 to provide a community for writers, readers, and artists through workshops, readings, and educational programs. One of their key contributions is the literary magazine titled POEM which showcases original writings from both established and emerging writers. This issue features poems from various writers.

Bioremediation Of Creosote Contaminated Soils In An Old Wood Preserving Facility, Claudia Rush

Honors Capstones

No abstract provided.

Evaluating The Feasibility Of An Intermodal Transportation Facility In Chattanooga, Murugan Auruvankulam-Palani

Masters Theses and Doctoral Dissertations

This research develops a mathematical model based on linear programming techniques to evaluate the feasibility of developing an intermodal transportation facility in Chattanooga. Transportation resources in and around Chattanooga were studied, and the opportunities available for developing business by a transportation facility are analyzed. Large quantities of goods are shipped in and out of Chattanooga by trucks in either trailers or containers. In order to transfer goods in container or trailer from one mode of transportation to another, specific handling equipment is needed. Mobile cranes present in some transportation terminals in Chattanooga can transfer goods in small units only, but …

234Th And 210Pb Evidence For Rapid Ingestion Of Settling Particles By Mobile Epibenthic Megafauna In The Abyssal Ne Pacific, L. M. L. Lauerman, J. M. Smoak, Timothy J. Shaw, W. S. Moore, K. L. Smith Jr.

Faculty Publications

No abstract provided.

Chaotic Behavior And Damage Spreading In The Glauber Ising Model: A Master Equation Approach, Thomas Vojta

Physics Faculty Research & Creative Works

We investigate the sensitivity of the time evolution of a kinetic Ising model with Glauber dynamics against the initial conditions. To do so we apply the "damage spreading" method, i.e., we study the simultaneous evolution of two identical systems subjected to the same thermal noise. We derive a master equation for the joint probability distribution of the two systems. We then solve this master equation within an effective-field approximation which goes beyond the usual mean-field approximation by retaining the fluctuations though in a quite simplistic manner. The resulting effective-field theory is applied to different physical situations. It is used to …

Volume 10, Number 02, Lana Wachniak Editor

Reaching Through Teaching

Full text of Volume 10, Number 02 of Reaching Through Teaching.

Lux Et Lex: Volume 4, Number 1, Janet Spaeth, Bob Garrett, Asako Yoshida, Cynthia Shabb, Betty Gard, Jean Anderson

Lux et Lex

This issue of Lux et Lex, a publication of the Chester Fritz Library at the University of North Dakota, was published in May 1997.

Kronecker Product Factorization Of De Boor's Mixed-Radix Fft, Leonard Hoffnung

Honors Theses

No abstract provided.

Illinois State University Report, May 1, 1997, Illinois State University

Illinois State University Report (1966-2012)

Illinois State University bi-weekly employee newsletter.

Study Of Muon-Pair Production At Centre-Of-Mass Energies From 20 To 136 Gev With The Aleph Detector, R. Barate, M. Thulasidas

Research Collection School Of Computing and Information Systems

The total cross section and the forward-backward asymmetry for the process e+e− → μ+μ−(nγ) are measured in the energy range 20–136 GeV by reconstructing the effective centre-of-mass energy after initial state radiation. The analysis is based on the data recorded with the ALEPH detector at LEP between 1990 and 1995, corresponding to a total integrated luminosity of 143.5 pb−1. Two different approaches are used: in the first one an exclusive selection of events with hard initial state radiation in the energy range 20–88 GeV is directly compared with the Standard Model predictions showing good agreement. In the second one, all …

A Measurement Of Rb Using A Lifetime-Mass Tag, R. Barate, Manoj Thulasidas

Research Collection School Of Computing and Information Systems

ALEPH's published measurement of Rb = Γ(Ζ → bb̄)/Γ(Ζ → hadrons) using a lifetime tag is updated using the full LEP 1 data sample. Considerable effort has been devoted to understanding systematic effects. Charm background is better controlled by combining the lifetime tag with a tag based on the b/c hadron mass difference. Furthermore, the algorithm used to reconstruct the event primary vertex is designed so as to reduce correlations between the two hemispheres of an event. The value of Rb is measured to be 0.2167 ± 0.0011 (stat) ± 0.0013 (syst).

Human Capital Investment As An Economic Development Strategy: A Detroit Analysis, Truman Hudson Jr.

Wayne State University Theses

Many urban developers have responded to the challenges of economic development¹ by providing tax incentives to businesses for relocating to urban areas (Bartik, 1995). By not being able to provide the skilled labor force that businesses require, developing communities are not postured to fully take advantage of the newly created job opportunities. Thus, wage disparities between the classes increase, leaving many of the underclass citizens without adequate employment for sustaining modest living standards (Turner, 1991).

As part of various economic development strategies², increased concerns have been given to human-capital based strategies (Psacharo-Poulos, 1985). This paper puts forth …

Constraints On Present-Day Shortening Rate Across The Central Eastern Andes From Gps Data, Lisa Leffler, Seth Stein, Ailin Mao, Timothy H. Dixon, Michael A. Ellis, Leonidas Ocola, I. Selwyn Sacks

School of Geosciences Faculty and Staff Publications

Two years of continuous GPS data from several sites in South America indicate that Arequipa in the southern Peruvian Andes has a velocity of 13±3 mm/yr (two standard errors) to the northeast with respect to stable South America. We interpret these data as reflecting a combination of elastic strain accumulation associated with a locked Nazca-South America subduction zone and a small amount of crustal shortening across the fold and thrust belt on the eastern margin of the Andes. Models of elastic strain accumulation for fully locked and partly locked subduction zones constrain shortening in the eastern Andes to 0–3 mm/yr …