Physical Sciences and Mathematics Commons^™

Virtual Online Stock Trading System, Tao Zhu

Theses Digitization Project

Stock trading provides a relatively low risk and hassle free channel for people to invest, when compared with other methods. However, it is unfortunate that, for those other people who may be equally interested and financially able in stock trading, they have yet to experience the simplicity of, and the wealth accumulated from stock investments. Reasons for their hesitation to be involved in stock trading vary; but primarily it is due to their lack of experience in trading.

Working For The Environment: Pathways To Environmental Careers, Carol Aline Devault

Theses Digitization Project

Fifteen professionals in a variety of environmental occupations in the United States were interviewed in a structured, open-ended format. Job profiles were developed from the interviews. The philosophy of these environmental professionals is expressed in their own words and offers insights into influences upon career choice, professional training and personal fulfillment. In addition, environmental related career activity guides were developed to help students and their parents and teachers gain an awareness of the occupations available in this field.

The X-33 And The X-38 Experimental Aircraft: Environmental Connections With Aerospace Science, Elandriel Jean Martin

Theses Digitization Project

The purpose of this project fosters in students a sense of place and connection with their home area. It also provides students a real-world basis upon which to study the concepts of weather and geography.

Citizen Knowledge And Perception Of Black-Tailed Prairie Dog Management, Natalie R. Sexton, Ayeisha Brinson, Phadrea D. Ponds, Kurt Cline, Berton L. Lamb

United States Geological Survey: Publications

What do citizens know about black-tailed prairie dogs, and where do they get their information? When management decisions need to be made regarding an animal such as the black-tailed prairie dog, an understanding of the species and its relationship to humans is necessary. This includes knowing the biology of the animal, where it lives, and how it interacts with other animals. But it is equally important for those making decisions about the species to understand citizens’ knowledge and perceptions so managers can effectively communicate with the public and help the public participate in planning and decision making activities. Unfortunately, what …

Modeling Reptile And Amphibian Range Distributions From Species Occurrences And Landscape Variables, Geoffrey M. Henebry, Brian C. Putz, James W. Merchant

United States Geological Survey: Publications

An international symposium in October 1999 demonstrated the state of the art in modeling species occurrences (Scott et al. 2001). One clear message from the symposium was the broad diversity of approaches that constitute the state of the art. No single method excels, largely because of the very particular and local nature of the problem. Organisms both influence and respond to their local environment; thus, the same species may key in on different resources in different landscapes. Furthermore, modeling methods vary widely in their "transparency," which can inhibit transportability or robustness.
In order to provide an analytical modeling framework that …

At-Satellite Reflectance: A First Order Normalization Of Landsat 7 Etm+ Images, Chengquan Huang, Limin Yang, Collin Homer, Bruce K. Wylie, James E. Vogelmann, Thomas Defelice

United States Geological Survey: Publications

Regional Landsat applications often rely on clear and near cloud-free images. With the spectral value being represented by digital number (DN), however, such images contain substantial noises. A significant proportion of such noises can be normalized by converting the DN to at-satellite reflectance value. Being physically based and ready to automate, the conversion method can serve as a first order normalization of Landsat 7 images, making it possible to derive land surface information from such images more consistently.

A Strategy For Estimating Tree Canopy Density Using Landsat 7 Etm+ And High Resolution Images Over Large Areas, C. Huang, Limin Yang, Bruce K. Wylie, Collin Homer

United States Geological Survey: Publications

INTRODUCTION

The Multi-Resolution Land Characteristics (MRLC) consortium was initiated in early 1990s to address the need for consistently developed national and regional land cover data (Loveland and Shaw, 1996). Through this consortium, a 1992-vintage National Land Cover Dataset (NLCD) was developed for the conterminous United States (Vogelmann et al., 2001), and a second generation National Land Cover Dataset (NLCD 2000) will be developed using 2000-vintage Landsat 7 Enhanced Thematic Mapper Plus (ETM+) images and ancillary data. The 2000 NLCD will consist of a suite of data layers relevant to many applications, including a tree canopy density layer describing percentage of …

Retroposon Analysis Of Major Cetacean Lineages: The Monophyly Of Toothed Whales And The Paraphyly Of River Dolphins, Masato Nikaido, Fumio Matsuno, Healy Hamilton, Robert L. Brownell Jr., Yin Cao, Wang Ding, Zhu Zuoyan, Andrew Shedlock, R. Ewan Fordyce, Masami Hasegawa, Norihiro Okada

United States Department of Commerce: Staff Publications

SINE (short interspersed element) insertion analysis elucidates contentious aspects in the phylogeny of toothed whales and dolphins (Odontoceti), especially river dolphins. Here, we characterize 25 informative SINEs inserted into unique genomic loci during evolution of odontocetes to construct a cladogram, and determine a total of 2.8 kb per taxon of the flanking sequences of these SINE loci to estimate divergence times among lineages. We demonstrate that: (i) Odontocetes are monophyletic; (ii) Ganges River dolphins, beaked whales, and ocean dolphins diverged (in this order) after sperm whales; (iii three other river dolphin taxa, namely the Amazon, …

Design And Implementation Of An Intranet-Solution Especially With Workflow Aspects, Robert Loew

Theses

An Intranet support a new or simply an easier information system for all the workers within a company using internet technology. On the one hand, employees can use Web technology and very simple tools to provide and navigate information. On the other hand, the costly and time-consuming business of installing and maintaining software on local PCs can be avoided by using Browser-based Intranet applications. Ideally, it would be possible to access all forms of information processing using one and the same Web browser. This is the aim of the Intranet Project upon which this thesis is based.

Various technologies for …

A Fresh Look At The Provision Of Bandwidth To A Health Agency, James G. Leahy

Theses

This thesis describes development of a networking infrastructure to support a Regional Health Service in Ireland. It covers:-

• The design, building, commissioning and delivery of a Forward Emergency Control Vehicle to provide the video, voice and data communications needed to enhance delivery of patient care in Disaster Situations. The main focus here is on the integration of satellite and terrestrial communications.

• By studying the history of telecommunications provision over copper, the best use is made of the legacy copper cabling in and between existing buildings on a campus to provide both voice and data services.

• A financial …

Development Of Amperometric Enzyme Electrodes For Glucose And Hypoxanthine., Eilish Broderick

Theses

This thesis is concerned with the immobilisation of enzymes on electrosynthesised poly (o- phenylenediamine) membranes for use on amperometric electrodes. The thesis opens with a discussion of the basic principles of enzymology and a review of a diverse range of biosensors, followed by a consideration of amperometry as governed by the Cottrell equation.

Glucose oxidase and horseradish peroxidase were co-immobilised in poly (o-phenylenediamine) on platinum electrodes at + 0.6 V versus Ag/AgCl. Using this approach the enzymes are entrapped in a strongly adherent, highly reproducible thin membrane, of thickness approximately 10 nm. This one-step procedure produces a glucose sensor with …

Unit Sum Numbers Of Abelian Groups And Modules, Christopher Meehan

Doctoral

We discuss some open questions regarding the unit sum numbers of free modules of arbitrary infinite rank over commutative rings and, in particular, over principal ideal domains. The unit sum numbers of rational groups are then investigated: the importance of the rational prime 2 being an automorphism of the rational group is discussed and other results are achieved considering the number and distribution of rational primes which are, or are not, automorphisms of the group. We next prove the existence of rational groups with unit sum numbers greater than 2 but of finite value and we estimate an upper bound …

Wetland Vegetation Monitoring, 2000/2001 (Salinity Action Plan), B. Franke, R. Gurner, R. Froend

Research outputs pre 2011

This report represents the vegetation component of a project designed to provide ongoing monitoring of wetland salinity and biological resources in wetlands of the agricultural zone of south-west Western Australia. Maintenance of wetland biological diversity in the agricultural zone is one of the major objectives of the Salinity Action Plan. Due to their low position in the landscape, wetlands are the habitat most affected by salinisation.

The Probe, Issue 214 – January/February 2001

The Probe: Newsletter of the National Animal Damage Control Association

Trap-Shy Feral Cats in Public Settings -- Susan Darling Greene
Why Worry About Human-Wildlife Conflicts? -- Mike Conover, President, NADCA
Imunoconctraception For Deer Control Shown to Be Ineffective
The USDA announced a settlement that would extend protection under the Animal Welfare Act to rats, mice, and birds used in laboratory research.
The Internet Center for Wildlife Damage Management: ttp://wildlifedamage.unl.edu -- Dallas Virchow, Proj. Coord., Distance Ed., Wildlife Damage Management,University of Nebraska
U.S. Environmental Protection Agency (EPA) Region 5 has recently ordered New Tech International (Warren, MI) to stop selling the unregistered pesticide Kritter Killer.
Since all snakes lack external ears, …

Tws Wildlife Damage Management Working Group Newsletter: Spring 2001 – Volume 8(1) Elections Issue

TWS Wildlife Damage Management Working Group Newsletter

From The Chair: 2000-2001 Wildlife Damage Management Working Group Officers:; Candidates For The Working Group Officers – May 2001; Wildlife Damage Management Working Group Ballot – May 2001; Proceedings Available: Predator Control; A Quest For Older Wildlife Control Workshop Proceedings; Wdamage: A Resource For Wildlife Damage Managers; Tws Reno/Tahoe 2001 8th Annual Conference Of The Wildlife Society Reno/Tahoe, Nevada , September 25–29, 2001 Preliminary Program; Application For Membership / The Wildlife Society

Tws Wildlife Damage Management Working Group Newsletter: Late Summer 2001 – Volume 8(2)

TWS Wildlife Damage Management Working Group Newsletter

Forward -Bob Timm; New Jersey Polices Chief Prevents 15mm Launcher Use; Close Encounters Of Predator Kind Rising; Fecal Canada Goose Study Results Available; Special Prepublication Offer On New Human Dimensions Book; Tws Reno/Tahoe 2001 8th Annual Conference Of The Wildlife Society Reno/Tahoe, Nevada, September 25–29, 2001 Preliminary Program; Application For Membership / The Wildlife Society

Algorithms For Operations On Probability Distributions In A Computer Algebra System, Diane Lynn Evans

Dissertations, Theses, and Masters Projects

In mathematics and statistics, the desire to eliminate mathematical tedium and facilitate exploration has lead to computer algebra systems. These computer algebra systems allow students and researchers to perform more of their work at a conceptual level. The design of generic algorithms for tedious computations allows modelers to push current modeling boundaries outward more quickly.;Probability theory, with its many theorems and symbolic manipulations of random variables is a discipline in which automation of certain processes is highly practical, functional, and efficient. There are many existing statistical software packages, such as SPSS, SAS, and S-Plus, that have numeric tools for statistical …

Structural, Magnetic, And Mössbauer Spectral Study Of Er₂Fe₁₇ And Its Hydrides, Fernande Grandjean, Olivier Isnard, Dimitri Hautot, Gary J. Long

Chemistry Faculty Research & Creative Works

The structural and magnetic properties of the Er₂Fe₁₇H_x compounds, where x is 0, 1, 2, 3, and 3.8, have been investigated by means of powder x-ray diffraction, thermal and ac magnetic susceptibility measurements, and iron-57 Mössbauer spectroscopy. The Er₂Fe₁₇H_x compounds crystallize in the hexagonal P6₃/mmc space group with the Th₂Ni₁₇-like structure, a structure which has both an iron-rich stoichiometry and disorder of the erbium and iron-iron 4f-4f dumbbell sites. The increase in the lattice parameters, the magnetic ordering temperature, the saturation magnetization, and the …

Mobile Data Management, Sanjay Kumar Madria, Sourav S. Bhowmick

Computer Science Faculty Research & Creative Works

The management of data in the mobile computing environment offers new challenging problems. Existing software needs to be upgraded to accommodate this environment. To do so, the critical parameters need to be understood and defined. We have surveyed some problems and existing solutions

Dynamics Of Polyacrylates In Concentrated Chloroform Solutions, Frank D. Blum, Raj B. Durairaj

Chemistry Faculty Research & Creative Works

The dynamics of polymers in polymer solutions have not been probed in great enough detail to provide a coherent picture of the behavior of these polymers, especially in more concentrated solutions. To help understand this behavior further, we have prepared a series of backbone-labeled polymers including poly(n-butyl acrylate)-d1 (PNBA). These provide a basis for comparison of the behavior among a group of related polymers. The dynamics have been probed by using deuterium relaxation times. Since the relaxation times are relatively fast and the quadrupolar relaxation mechanism is well understood, data from this technique provide a convenient means for comparison of …

Numerical Simulations Of Dynamical Mass Transfer In Binaries, Patrick Michael Motl

LSU Doctoral Dissertations

We present results from investigations of mass transfer instability in close binary star systems. By unstable mass transfer we mean the exchange of material where the response of the binary to the initial Roche lobe overflow causes the donor to loose even more material. Our work is guided by approximate arguments that dictate the stability boundaries for binary star systems. To proceed further one must explicitly treat extended mass and velocity distributions that are both nitially, and through their subsequent evolution in time, self-consistent. In this dissertation, we present the first three-dimensional, fully self-consistent treatment of mass transfer in close …

Performance Evaluation Of Hybrid Coding Of Images Using Wavelet Transform And Predictive Coding, S. R. Subramanya, Chaman Sabharwal

Computer Science Faculty Research & Creative Works

Image compression techniques are necessary for the storage of huge amounts of digital images using reasonable amounts of space, and for their transmission with limited bandwidth. Several techniques such as predictive coding, transform coding, subband coding, wavelet coding, and vector quantization have been used in image coding. While each technique has some advantages, most practical systems use hybrid techniques which incorporate more than one scheme. They combine the advantages of the individual schemes and enhance the coding effectiveness. This paper proposes and evaluates a hybrid coding scheme for images using wavelet transforms and predictive coding. The performance evaluation is done …

Workstation Clusters For Parallel Computing, J. Stone, Fikret Erçal

Computer Science Faculty Research & Creative Works

Workstation clusters have become an increasingly popular alternative to traditional parallel supercomputers for many workloads requiring high performance computing. The use of parallel computing for scientific simulations has increased tremendously in the last ten years, and parallel implementations of scientific simulation codes are now in widespread use. There are two dominant parallel hardware/software architectures in use today: distributed memory, and shared memory. Systems implementing shared memory provide cooperating processes with a shared memory address space that can be accessed by all processors. In shared memory systems, parallel processing occurs through the use of shared data structures, or through emulation of …

A Visual Query System For The Specification And Scientific Analysis Of Continual Queries, Jennifer Leopold, A. Ambler, M. Heimovics, T. Palmer

Computer Science Faculty Research & Creative Works

The lack of a facility that would allow nonprogrammers to easily formulate temporal ad hoc analyses over a network of heterogeneous, constantly-updated data sources has been a significant impediment to research, particularly in the scientific community. In this paper we describe WebFormulate, an Internet-based system which facilitates the development of analyses using information obtained from databases on the Internet. The main distinction between this system and existing Internet facilities to retrieve information and assimilate it into computations is that WebFormulate provides the necessary facilities to perform continual queries, developing and maintaining dynamic links such that computations and reports automatically maintain …

Hierarchical Ring Network Configuration And Performance Modeling, V. Carl Hamacher, Hong Jiang

School of Computing: Faculty Publications

Approximate analytical queuing network models for expected message packet delay in 2-level and 3-level hierarchical ring interconnection networks (INs) are developed. A major class of traffic carried by these INs consists of cache line transfers between processor caches and remote memory modules in shared-memory multiprocessors. Such traffic consists of short, fixed-length messages; they can be conveniently transported by the slotted-ring transmission technique which is studied here. The packet delay results derived from the models are shown to be quite accurate when checked against a simulation study. As well as facilitating analysis, the analytical models can be used to determine optimal …

Fluoroalcohols As Nucleating Agents In Supersaturated Vapors: Efficient Clustering With Water In The Vapor Phase, V. Abdalsayed, Y. Ibrahim, M. Rusyniak, M. Rabeony, M. S. El-Shall

Chemistry Publications

Fluoroalcohols in small concentrations in the vapor phase display striking enhancing effects on homogeneous nucleation of supersaturated aliphatic alcohols, and on the formation of water clusters by supersonic expansion. The enhanced nucleationeffects are attributed to the surfactant properties of fluoroalcohols, which lower the surface tension of the growing droplets, and therefore lower the barrier to nucleation.

Concept Building Through Active Learning Experiences With The Calculator Based Laboratory (Cbl), N. Motta

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Creativity Vs. Structure: A Challenge In Discovery Chemistry, R. S. Lamba

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Saturday Morning Parent And Child Education (Pace), D. J. Bagby, P. A. Priestas

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Latent Maximum Entropy Principle For Statistical Language Modeling, Shaojun Wang, Ronald Rosenfeld, Yunxin Zhao

Kno.e.sis Publications

We describe a unified probabilistic framework for statistical language modeling, the latent maximum entropy principle. The salient feature of this approach is that the hidden causal hierarchical dependency structure can be encoded into the statistical model in a principled way by mixtures of exponential families with a rich expressive power. We first show the problem formulation, solution, and certain convergence properties. We then describe how to use this machine learning technique to model various aspects of natural language, such as syntactic structure of sentences, semantic information in a document. Finally, we draw a conclusion and point out future research directions.