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Glacier (?) National Park, Judy McIlrath 2010 University of South Florida

Glacier (?) National Park, Judy Mcilrath

School of Geosciences Faculty and Staff Publications

In this Spreadsheets Across the Curriculum activity, students examine data pertaining to the disappearing glaciers in Glacier National Park. After calculating percentage change of the number of glaciers from 1850 (150) to 1968 (50) and 2009 (26), they move on to the main glacier-monitoring content of the module--area vs. time data for the Grinnell Glacier, one of 26 glaciers that remain in the park. Using a second-order polynomial (quadratic function) fitted to the data, they extrapolate to estimate when there will be no Grinnell Glacier remaining (illustrating the relevance of the question mark in the title of the module). Introductory ...


Using Mathematics As A Gateway To Literacy For English Language Learners, Krista Hemphill 2010 University of Northern Iowa

Using Mathematics As A Gateway To Literacy For English Language Learners, Krista Hemphill

Honors Program Theses

One teaching approach that alleviates language barriers involves teachers using what students know and can do to develop students‟ understanding of and ability in another area. Thus, 2 teachers can promote ELLs‟ literacy development by integrating knowledge and skills ELLs have from another subject area into their literacy instruction. Specifically, teachers can integrate mathematics into literacy instruction because research suggests that ELLs often understand and successfully carry out mathematical tasks. For example, Gunning (2003) points out that ELLs tend to perform well on mathematical computations. The universality of mathematical symbols seems to promote ELLs‟ understanding of mathematics instruction although lessons ...


How Does The University Of Northern Iowa's Recycling Program Compare To The Recycling Programs Of Its Peer Institutions?, Anna J. Schrad 2010 University of Northern Iowa

How Does The University Of Northern Iowa's Recycling Program Compare To The Recycling Programs Of Its Peer Institutions?, Anna J. Schrad

Honors Program Theses

In recent years, the concept of sustainability has become mainstream and has begun to be incorporated into the decisions that businesses, organizations, and institutions make. With over 12,000 students, the University of Northern Iowa (UNI) has great potential to generate large quantities of recyclables (Kaplan & von Kolnitz, 2004). By expanding its recycling program, UNI can increase its appeal to prospective students while gaining economic benefits in addition to protecting the environment. Waste managers at 8 of UNI’s peer institutions (Appendix B) were interviewed to determine how UNI’s recycling and waste diversion efforts compared to similar schools for ...


Interannual Differences In Nutrient Dynamics During A Brown Tide Bloom (Aureococcus Anophagefferens) And The Interaction Of A. Anophagefferens With Heterotrophic Bacteria, George Eric Boneillo 2010 Old Dominion University

Interannual Differences In Nutrient Dynamics During A Brown Tide Bloom (Aureococcus Anophagefferens) And The Interaction Of A. Anophagefferens With Heterotrophic Bacteria, George Eric Boneillo

OEAS Theses and Dissertations

Blooms of Aureococcus anophagefferens (Brown Tides) in Chincoteague Bay were observed over a six-year period (2002–2007) during which interannual differences in nitrogen and carbon uptake and concentrations of dissolved constituents were compared at two sites, one in Maryland and the other in Virginia. Overall, I observed an increase in bloom intensity and duration over time. No single nitrogen compound was responsible for fueling blooms. Instead, A. anophagefferens demonstrated the ability to use a wide range of nitrogen compounds to meet its nutritional demands. Results show that NO3-, NH4+, urea, and DFAA were taken up simultaneously during blooms ...


Ordinary And Particial Differential Equations: An Introduction To Dynamical Systems, John W. Cain, Angela M. Reynolds 2010 University of Richmond

Ordinary And Particial Differential Equations: An Introduction To Dynamical Systems, John W. Cain, Angela M. Reynolds

Bookshelf

Differential equations arise in a variety of contexts, some purely theoretical and some of practical interest. As you read this textbook, you will find that the qualitative and quantitative study of differential equations incorporates an elegant blend of linear algebra and advanced calculus. This book is intended for an advanced undergraduate course in differential equations. The reader should have already completed courses in linear algebra, multivariable calculus, and introductory differential equations.


Mined-Over Matter, Judy McIlrath 2010 University of South Florida

Mined-Over Matter, Judy Mcilrath

School of Geosciences Faculty and Staff Publications

No abstract provided.


Getting To The Point: Exploring Tectonic Motion At Point Reyes National Seashore, Judy McIlrath 2010 University of South Florida

Getting To The Point: Exploring Tectonic Motion At Point Reyes National Seashore, Judy Mcilrath

School of Geosciences Faculty and Staff Publications

This Spreadsheets Across the Curriculum activity introduces Geology of National Parks students to the geology of the San Andreas Fault, which borders the east side of Point Reyes National Seashore. Photos in the module show the right-lateral displacement along the fault from the 1906 San Francisco earthquake, differences in vegetation and types of rocks on opposite sides of the fault, and the geomorphic expression of the fault (e.g., Tomales Bay). Students get an opportunity to determine distances by measuring map lengths, using the map scales, and converting units. Students also calculate the rate of relative motion of the Pacific ...


Yellowstone! A National Park On A Hot Spot, Judy McIlrath 2010 University of South Florida

Yellowstone! A National Park On A Hot Spot, Judy Mcilrath

School of Geosciences Faculty and Staff Publications

This Spreadsheets Across the Curriculum activity introduces Geology of National Parks students to Yellowstone National Park. The module takes a broad overview of volcanic features of the park, including the line of calderas along the up-drift hot spot trace, the mapped area of tuffs produced by their cataclysmic eruptions, and the hydrothermal features for which the park is so well known. Students calculate the rate that the North American Plate has been moving over the hot spot, the relative volume of the materials produced in the cataclysmic eruptions, their recurrence interval, and probability of eruption in any given year. The ...


Mathematical Models And Stability Analysis Of Cholera Dynamics, Shu Liao 2010 Old Dominion University

Mathematical Models And Stability Analysis Of Cholera Dynamics, Shu Liao

Mathematics & Statistics Theses & Dissertations

In this dissertation, we present a careful mathematical study of several epidemic cholera models, including the model of Codeco [11] in 2001, that of Hartley, Morris and Smith [22] in 2006, and that of Mukandavire, Liao, Wang and Gaff et al. [60] in 2010. We formally derive the basic reproduction number R0 for each model by computing the spectral radius of the next generation matrix. We focus our attention on the stability analysis at the disease-free equilibrium which determines the short-term epidemic behavior, and the endemic equilibrium which determines the long-term disease dynamics. Particularly, we incorporate the Volterra-Lyapunov matrix ...


Technology For The Organic Chemist: Three Exploratory Modules, John J. Esteb, LuAnne M. McNulty, John Magers, Paul Morgan 2010 Butler University

Technology For The Organic Chemist: Three Exploratory Modules, John J. Esteb, Luanne M. Mcnulty, John Magers, Paul Morgan

Scholarship and Professional Work - LAS

The ability to use computer-based technology is an essential skill set for students majoring in chemistry. This exercise details the introduction of appropriate uses for this technology in the organic chemistry series. The incorporation of chemically appropriate online resources (module 1), scientific databases (module 2), and the use of a chemical drawing program (module 3) are detailed here.


Degradation Of Organic Matter In Water In The Presence Of Catalyst And Uv Radiation, Bimali Bandaranayake 2010 Eastern Illinois University

Degradation Of Organic Matter In Water In The Presence Of Catalyst And Uv Radiation, Bimali Bandaranayake

Masters Theses

No abstract provided.


Anonytl Specification, Dan Peebles, Cory Cornelius, Apu Kapadia, David Kotz, Minho Shin, Nikos Triandopoulos 2010 Dartmouth College

Anonytl Specification, Dan Peebles, Cory Cornelius, Apu Kapadia, David Kotz, Minho Shin, Nikos Triandopoulos

Open Dartmouth: Faculty Open Access Scholarship

We provide a specification of \sc AnonyTL, a domain-specific language that describes sensing tasks for mobile devices in a manner that facilitates automated reasoning about privacy.


The Development Of Scalable Pump Techniques For Gg Iag Fiber Lasers And Passive Athermalization Techniques For Solid State Laser, William Hageman 2010 University of Central Florida

The Development Of Scalable Pump Techniques For Gg Iag Fiber Lasers And Passive Athermalization Techniques For Solid State Laser, William Hageman

Electronic Theses and Dissertations

This dissertation consists of two parts: research pertaining to the development of scalable pump techniques for gain guided index-antiguided fiber lasers and research relating to the development of passive athermalization schemes for solid state lasers. The first section primarily details the development of a side pump scheme that allows for power scaling of gain-guided index anti-guided fibers. While these fibers have been demonstrated in past research, none have used a pump technology capable of pumping with the efficiencies, uniformity, and necessary length to allow for scaling of the fiber lasers to high output powers. The side pumped scheme developed in ...


Epitaxial Growth, Characterization And Application Of Novel Wide Bandgap Oxide Semiconductors, Jeremy Mares 2010 University of Central Florida

Epitaxial Growth, Characterization And Application Of Novel Wide Bandgap Oxide Semiconductors, Jeremy Mares

Electronic Theses and Dissertations

In this work, a body of knowledge is presented which pertains to the growth, characterization and exploitation of high quality, novel II-IV oxide epitaxial films and structures grown by plasma-assisted molecular beam epitaxy. The two compounds of primary interest within this research are the ternary films NixMg1-xO and ZnxMg1-xO and the investigation focuses predominantly on the realization, assessment and implementation of these two oxides as optoelectronic materials. The functioning hypothesis for this largely experimental effort has been that these cubic ternary oxides can be exploited - and possibly even juxtaposed - to realize novel wide band gap optoelectronic technologies. The results of ...


Micro-Electro-Mechanical Systems (Mems) And Agile Lensing-Based Modules For Communications, Sensing And Signal Processing., Syed Reza 2010 University of Central Florida

Micro-Electro-Mechanical Systems (Mems) And Agile Lensing-Based Modules For Communications, Sensing And Signal Processing., Syed Reza

Electronic Theses and Dissertations

This dissertation proposes the use of the emerging Micro-Electro-Mechanical Systems (MEMS) and agile lensing optical device technologies to design novel and powerful signal conditioning and sensing modules for advanced applications in optical communications, physical parameter sensing and RF/optical signal processing. For example, these new module designs have experimentally demonstrated exceptional features such as stable loss broadband operations and high > 60 dB optical dynamic range signal filtering capabilities. The first part of the dissertation describes the design and demonstration of digital MEMS-based signal processing modules for communication systems and sensor networks using the TI DLP (Digital Light Processing) technology. Examples ...


Long Cavity Quantum Dot Laser Diode And Monolithic Passively Mode-Locked Operation, K Shavitranuruk 2010 University of Central Florida

Long Cavity Quantum Dot Laser Diode And Monolithic Passively Mode-Locked Operation, K Shavitranuruk

Electronic Theses and Dissertations

Advantage of the single QD active layer is its potential for very low threshold current density, which in turn can produce low internal optical loss. The low threshold current density and low internal loss thus enable a significant increase in laser diode cavity length. Because of the importance of the threshold current density in heatsinking, future technology of broad-area monolithic laser diodes can be implemented. The dissertation describes the development and the unique characteristics of single QD active layer laser with long cavity. The data are presented on single layer QD laser diodes that reach threshold current densities values of ...


Numerical Computations For Pde Models Of Rocket Exhaust Flow In Soil, Brian Brennan 2010 University of Central Florida

Numerical Computations For Pde Models Of Rocket Exhaust Flow In Soil, Brian Brennan

Electronic Theses and Dissertations

We study numerical methods for solving the nonlinear porous medium and Navier-Lame problems. When coupled together, these equations model the flow of exhaust through a porous medium, soil, and the effects that the pressure has on the soil in terms of spatial displacement. For the porous medium equation we use the Crank-Nicolson time stepping method with a spectral discretization in space. Since the Navier-Lame equation is a boundary value problem, it is solved using a finite element method where the spatial domain is represented by a triangulation of discrete points. The two problems are coupled by using approximations of solutions ...


Markerless Tracking Using Polar Correlation Of Camera Optical Flow, Prince Gupta 2010 University of Central Florida

Markerless Tracking Using Polar Correlation Of Camera Optical Flow, Prince Gupta

Electronic Theses and Dissertations

We present a novel, real-time, markerless vision-based tracking system, employing a rigid orthogonal configuration of two pairs of opposing cameras. Our system uses optical flow over sparse features to overcome the limitation of vision-based systems that require markers or a pre-loaded model of the physical environment. We show how opposing cameras enable cancellation of common components of optical flow leading to an efficient tracking algorithm that captures five degrees of freedom including direction of translation and angular velocity. Experiments comparing our device with an electromagnetic tracker show that its average tracking accuracy is 80% over 185 frames, and it is ...


Quantum Dot Based Mode-Locked Semiconductor Lasers And Applications, Jimyung Kim 2010 University of Central Florida

Quantum Dot Based Mode-Locked Semiconductor Lasers And Applications, Jimyung Kim

Electronic Theses and Dissertations

In this dissertation, self-assembled InAs/InGaAs quantum dot Fabry-Perot lasers and mode-locked lasers are investigated. The mode-locked lasers investigated include monolithic and curved two-section devices, and colliding pulse mode-locked diode lasers. Ridge waveguide semiconductor lasers have been designed and fabricated by wet etching processes. Electroluminescence of the quantum dot lasers is studied. Cavity length dependent lasing via ground state and/or excited state transitions is observed from quantum dot lasers and the optical gain from both transitions is measured. Stable optical pulse trains via ground and excited state transitions are generated using a grating coupled external cavity with a curved ...


Misalignment Induced Nodal Aberration Fields And Their Use In The Alignment Of Astronomical Telescopes, Tobias Schmid 2010 University of Central Florida

Misalignment Induced Nodal Aberration Fields And Their Use In The Alignment Of Astronomical Telescopes, Tobias Schmid

Electronic Theses and Dissertations

Following the foundation of aberration theory for rotationally symmetric optical systems established by Seidel, Schwarzschild, Burch, Conrady, Buchdahl, and in its most useful form H.H. Hopkins, Shack, Buchroeder, Thompson, and Rogers developed a vectorial form of the wave aberration theory that enables addressing optical systems without symmetry. In this research, a vectorial theory is utilized and extended for the alignment of two- and three-mirror astronomical telescopes, including the effects of pointing changes and astigmatic figure errors. Importantly, it is demonstrated that the vectorial form of aberration theory, also referred to as nodal aberration theory, not only provides valuable insights ...


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