Physical Sciences and Mathematics Commons^™

Biomass Estimation Using Statistical And Neural Network Analysis Of Aster Data, Vijay O. Lulla

All-Inclusive List of Electronic Theses and Dissertations

This study assessed the performance of different biomass estimation methods using Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) lll data in a temperate forest. Multiple linear regression statistics of spectral band data and derived indices with biomass values were compared with advanced neural network models created with spectral band data and indices to model biomass values. Biomass for the study area was estimated using both of these methods and the results were discussed. The data were analyzed using multivariate statistical analysis. Correlation analysis and regression analysis were employed to understand the relationship of biomass to the spectral data and …

The Prairie Naturalist, Volume 37, No.4 December 2005

The Prairie Naturalist

AVIAN COMMUNITY RESPONSE TO CONSTRUCTION OF A NATURALISTIC GOLF COURSE IN TALL GRASS PRAIRIE IN KANSAS ▪ R. J. Robel, S. L. Bye, K. E. Kemp, and S. J. Thien

SECOND REPORT OF THE NORTH DAKOTA BIRD RECORDS COMMITTEE: 2002-2003 ▪ D. Svingen, and R. E. Martin

RECENT RECORDS OF FORMERLY EXTIRPATED CARNIVORES IN NEBRASKA ▪ J. D. Hoffman, and H. H. Genoways

PLAINS HARVEST MOUSE IN NORTH DAKOTA ▪ R. W. Seabloom, and T. L. Shaffer

Book Reviews

A Primer on Prairie Ecology ▪ M. A. Cunningham

Range Wars: Have Prairie Dogs Lost the Battle for the West? ▪ …

Fisheries Research Report No. 151 - Biology And Stock Assessment Of The Thickskin (Sandbar) Shark, Carcharhinus Plumbeus, In Western Australia And Further Refinement Of The Dusky Shark, Carcharhinus Obscurus, Stock Assessment., Rory Mcauley, R Lenanton, J. Chidlow, R. Allison, E. Heist

Fisheries Research Reports

Final FRDC Report - Project 2000/134

The purpose of this project was to collect the biological and fishery information necessary to conduct a stock assessment of the sandbar (known locally as ‘thickskin’) shark, Carcharhinus plumbeus and to improve and update the existing stock assessment for the dusky shark, Carcharhinus obscurus. Results from this project have already been used by the Western Australian Department of Fisheries to determine appropriate management arrangements for the State’s shark fisheries to ensure the sustainable exploitation of these species. Results have also assisted the WA target-shark fisheries in conducting Ecologically Sustainable Development (ESD) assessment in order …

Aquatic Animal Health Subprogram: Technical Guidelines For The Translocation Of Live Aquatic Animals - With Reference To Barramundi Nodavirus, Brian Jones

Fisheries Research Reports

FRDC Project No. 2005/640

A workshop was conducted involving input from most jurisdictions. Technical issues including hazard identification and risk management associated with the translocation of live finfish were documented.

A series of recommendations, which resulted from the workshop process, will be progressed through the National Aquatic Animal Health Technical Working group and the Aquatic Animal Health Committee.

Interactive Animated Concept Map Generation - Using Dynamic Animations, Suneel Vana

Computer Science and Engineering Theses - Archive

We present a visualization tool, which is useful for the illustration of educational concepts using interactive animated concept maps. This system serves as a presentation tool which provides a collection of multimedia elements (images, animations, audios clips and video clips), a collection of animated presentation templates and an interface by using which users can retrieve the multimedia elements from the multimedia database and generate the dynamic animations by placing the selected elements into the placeholders of the templates. The system generates the animated presentation by replacing embedded multimedia objects and their properties as desired by its users. A multimedia information …

Photoexcitation And Photoionization Of The Argon Atom And The Hydrogen Bromide Molecule, Ximao Feng

Dissertations

Interaction between synchrotron radiation with inner-shell electrons is a fundamental method to study the structure and dynamics of atoms and molecules. This thesis, under the guidance of Dr. Nora Berrah, concentrates on the study of the interaction between soft x-ray photons with Ar atoms and HBr moleculeswith time-of-flight (TOF) electron spectrometers and two-dimensional photoelectron spectroscopy (2DPES). Both of the experiments were performed on theAtomic, Molecular and Optical Physics undulator beamline at the Advanced Light Source at Lawrence Berkeley National Laboratory.

The argon study focused on photoelectron recapture when the 2p electrons are ionized just above the thresholds of the two …

On The Existence And Stability Of Carbon -Based Silicon Fullerenes -A Density Functional Theoretic Study, Aravind Srinivasan

Physics Theses - Archive

The electronic and geometric properties of silicon-carbon fullerene-like nanostructures with two, four, six, twenty and twenty four carbon atoms on the surface of the Si60 cages by substitution, as well as inside the cage at various symmetry orientations have been studied within the generalized gradient approximation to density functional theory (GGA-DFT). The Perdew-Wang 91 (PW91) functional has been used to treat exchange and correlation energies. Full geometry and spin optimizations have been performed using Gaussian 03 suite of programs and the LANL2DZ basis set. Thus for the silicon atom, the Hay-Wadt pseudopotential with the associated basis set are used for …

Message From The Provost, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

Distributed Computing And Computer Security Education, Stefan Robila

Department of Computer Science Faculty Scholarship and Creative Works

This paper presents our experience in using cluster computing when teaching Computer and Data Security. The background knowledge together with the topics that fit the best applications of distributed computing and the hardware and software needs are discussed. Several project activities are presented with some analyzed in detail. The first requires the students to develop a computer cluster out of a regular public lab and use it for building security attacks such as password and encryption key cracking. The second deals with prime number generation using a client /server architecture (implemented in Java) and an Oracle database complemented by the …

A New Fault Information Model For Fault-Tolerant Adaptive And Minimal Routing In 3-D Meshes, Zhen Jiang, Jie Wu, Dajin Wang

Department of Computer Science Faculty Scholarship and Creative Works

In this paper we rewrite Wang's Minimal-Connected-Component (MCC) model [7] in 2-D meshes without using global information so that not only the existence of a minimal path can be ensured at the source, but also such a path can be formed by routing decisions at intermediate nodes along the path. We extend this MCC model and the corresponding routing in 2-D meshes to 3-D meshes. It is based on our early work on fault tolerant adaptive and minimal routing [9] and the boundary information model [8] in 3-D meshes. We study fault tolerant adaptive and minimal routing from the source …

Investigation Of The Probe-Sample Interaction In The Ultrasonic/Shear-Force Microscope: The Phononic Friction Mechanism, Xiquan Cui, Andres H. La Rosa

Physics Faculty Publications and Presentations

The dissipative and conservative interactions between a sharp probe and a flat Si sample in the ultrasonic/shear-force microscope are investigated. It is shown that, when working in the ambient condition, there are two distinct probe-sample interaction regions: the pure dissipative interaction region in the relatively far probe-sample distance, and the highly correlated dissipative and conservative interaction region in the close probe-sample distance. The ultrasonic data suggest that the phonon generation is a dissipative channel for the probe-sample interaction in the shear force microscope. A shaking potential model is proposed to explain the phononic friction mechanism

Mcnair Scholars Program, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

Full Issue, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

Analysis Of Qa/Qc Protocols And Value Of Data To The Development Of Reference Criteria In The Georgia Ecoregions Project, Tracy Jo Ferring

Theses and Dissertations

The concept of Measurements Quality Objectives (MQOs), in bioassessment programs is a useful tool in evaluating the consistency of data and limiting variability and potential sources of measurement error. Typical evaluations of data repeatability and/or data quality center on the use of a series of calculations that quantify variability between measures. These calculations provided some indication of not only the quality of the data collected, but also acted as a measure of how representative the biological data were to each ecoregion. The evaluation of the Quality Control data for this project provides a framework for data users and water resource …

Paleoenvironmental Reconstruction Of The Late Cretaceous Eastern Gulf Coastal Plain In Georgia And Alabama, Tracy L. Hall

Theses and Dissertations

The present study reconstructs the regional paleoenvironment (particularly paleoclimate) of the Late Cretaceous Eastern Gulf Coastal Plain of Georgia and Alabama using paleobotanical, paleoecological and geochemical methods in order to evaluate the Late Cretaceous climate of the Southeastern United States, and to add to the body of paleoclimate data for that time. Paleobotanical analysis indicates a terrestrial mean annual temperature (MAT) of about 27°C during the Late Cretaceous, which is considerably warmer than modern terrestrial MAT. Stable oxygen isotope data from molluscan carbonate indicate mean sea surface temperature (SST) of 26.8 °C for the Santonian, 23.5°C for the early Campanian, …

Foraminiferal Faunas Of The Southern California Bight: A Temporal And Spatial Comparison Of Assemblages In The >150, 63-150, And >63 Μm Fractions, Amanda S. Shepard

All-Inclusive List of Electronic Theses and Dissertations

Analyses ofliving (Rose Bengal stained) deep-sea benthic foraminifera collected on the Southern California margin reveal temporal and spatial changes in foraminiferal assemblages related to changes in sea-surface productivity. Samples were collected from two sites in May, August, and October 1996. Results show that foraminiferal microhabitats are not static at these sites, and some species ( e.g., Bolivina spissa and Uvigerina peregrina) responded to the change in seasons with a change in their vertical distribution profiles, which is indicative of microhabitat preferences. Species such as Buliminella tenuata changed sediment depth in different stages of their life cycles, which has implications for …

Pythagorean Primes And Palindromic Continued Fractions, Arthur T. Benjamin, Doron Zeilberger

All HMC Faculty Publications and Research

In this note, we prove that every prime of the form 4m + 1 is the sum of the squares of two positive integers in a unique way. Our proof is based on elementary combinatorial properties of continued fractions. It uses an idea by Henry J. S. Smith ([3], [5], and [6]) most recently described in [4] (which provides a new proof of uniqueness and reprints Smith's paper in the original Latin). Smith's proof makes heavy use of nontrivial properties of determinants. Our purely combinatorial proof is self-contained and elementary.

Looking Beyond The Curriculum In Jamaica, Jon T. Jacobsen, Michael E. Orrison Jr.

All HMC Faculty Publications and Research

In August 2004, we had the opportunity to travel to Jamaica to lead a pilot workshop for Jamaican high school math teachers. The workshop focused on the importance of mathematical context in the teaching of mathematics. It was sponsored by the Gibraltar Institute, a Jamaica-based nongovernmental organization led by Trevor Campbell (Pomona College) and Reginald Nugent (Cal State Pomona), Jamaica’s College of Agriculture, Science and Education, and Harvey Mudd College.

Distributed Blowing And Suction For The Purpose Of Streak Control In A Boundary Layer Subjected To A Favorable Pressure Gradient, Eric Forgoston, Anatoli Tumin, David E. Ashpis

Department of Applied Mathematics and Statistics Faculty Scholarship and Creative Works

An analysis of the optimal control by blowing and suction in order to generate streamwise velocity streaks is presented. The problem is examined using an iterative process that employs the Parabolized Stability Equations for an incompressible fluid along with its adjoint equations. In particular, distributions of blowing and suction are computed for both the normal and tangential velocity perturbations for various choices of parameters.

Three-Dimensional Wave Packet In A Hypersonic Boundary Layer, Eric Forgoston, Anatoli Tumin

Department of Applied Mathematics and Statistics Faculty Scholarship and Creative Works

A three-dimensional wave packet generated by a local disturbance in a hypersonic boundary layer flow is studied with the aid of the previously solved initial-value problem. The solution to this problem can be expanded in a biorthogonal eigenfunction system as a sum of discrete and continuous modes. A specific disturbance consisting of an initial temperature spot is considered, and the receptivity to this initial temperature spot is computed for both the two-dimensional and three-dimensional cases. Using previous analysis of the discrete and continuous spectrum, we numerically compute the inverse Fourier transform. The two-dimensional inverse Fourier transform is found for Mode …

Monitoring Health By Detecting Drifts And Outliers In Patterns Of An Inhabitant In A Smart Home, Gaurav Jain

Computer Science and Engineering Theses - Archive

The elderly, along with people with disabilities or chronic illness, are most often dependent on some kind of formal or informal care. They are forced to move to a place where they can be cared for. Automatic health monitoring allows them to maintain their independence and continue living at home longer by continuously providing key health and activity information to caregivers. In this thesis, we present a novel technique, called the Health Monitoring System (HMS), which is a data-driven automated monitoring system for detecting changes in the patterns of activities/inactivity, health data and the living environment. HMS classifies these changes …

Infosearch: A System For Searching And Retrieving Documents Using Complex Queries, Nikhil Deshpande

Computer Science and Engineering Theses - Archive

The colossal amount of information available online has resulted in overloading users who need to navigate this information for their routine requirements. Although search engines have been effective in reducing this information overload, they support only queries involving keywords and Boolean operators. There are certain application domains where more expressive ways of searching are necessary. Consider searching a full-text patent database for documents containing more than n occurrences of a pattern, or for documents that have a particular pattern followed by another pattern within a specified interval. Such complex patterns involving pattern frequency and sequence, as well as patterns involving …

Customization Of A Generic Search Engine By Adding User Categories, Ajay Mohandas Madkaiker

Computer Science and Engineering Theses - Archive

The current search engines available on the Net are generic in nature. They do not consider user preferences and treat all users information needs in the same way. As a result they frequently return a large number of links, that do not meet the user's information need. This requires more searching to find what the user is looking for. For example if a user is interested in a particular game, e.g. cricket, and enters the query world cup, a generic search engine would return links of all the sports that hold a world cup. The user has to browse through …

Estream: An Integration Of Event And Stream Processing, Vihang Garg

Computer Science and Engineering Theses - Archive

Event and stream data processing models have been researched extensively and are utilized in diverse application domains. Advanced applications require both event and stream processing, which is currently not supported. Although there are number of similarities and differences between them, a synergistic integration of their strengths will be better than the sum of their parts. In this thesis, we present EStream, an integrated event and stream processing system for monitoring changes on stream computations and for expressing and processing complex events on continuous queries (CQs). We introduce attribute-based constraints for reducing uninteresting events that are generated from CQs. We discuss …

Testing Java Monitors By State Space Exploration, Monica Maria Hernandez

Computer Science and Engineering Theses - Archive

Java monitors are classes that are intended to be accessed by multiple threads at the same time. Detecting synchronization faults in Java Monitors is considerably more challenging than testing regular classes, due to the inherent non-determinism of concurrent programs. This thesis proposes a state based exploration approach to testing Java monitors. This approach consists of exploring the state space of a Java monitor in a depth-first manner, dynamically building test sequences, which are comprised by the states explored along each path. Moreover, threads are introduced on the fly during the exploration of each path, based on several rules for simulating …

Hdb-Subdue, A Relational Database Approach To Graph Mining And Hierarchical Reduction, Srihari Padmanabhan

Computer Science and Engineering Theses - Archive

Data mining aims at discovering interesting and previously unknown patterns from data sets. Transactional mining (association rules, decision trees etc.) can be effectively used to find non-trivial patterns in categorical and unstructured data. For applications that have an inherent structure (e.g., chemical compounds, proteins) graph mining is appropriate, because mapping the structured data into other representations would lead to loss of structure. The need for mining structured data has increased in the past few years. Graph mining uses graph theory principles to perform mining. Database mining of graphs aims at mining structured graph data stored in relational database tables using …

Graph-Based Learning Using A Naive Bayesian Classifier, Robert Hawes

Computer Science and Engineering Theses - Archive

Graph-based data representation is becoming increasingly more commonplace, as graphs can represent some kinds of data more efficiently than relational tables. As such, interesting patterns in the form of subgraphs can be discovered by mining these graph-based datasets. Because the learned patterns can be used to predict future occurrences, it is necessary to learn graphical concepts that can optimally classify the data in the presence of uncertainty. This work explores the construction and learning of optimal naïve Bayesian graph classifiers to distinguish between positive and negative graphs given a set of graphs as examples. Whereas most previous work in graph-based …

Approaches For Validating Frequent Episodes Based On Periodicity In Time-Series Data, Dhawal Y. Bhatia

Computer Science and Engineering Theses - Archive

There is ongoing research on sequence mining of time-series data. We study Hybrid Apriori, an interval-based approach to episode discovery that deals with different periodicities in time-series data. Our study identifies the anomaly in the Hybrid Apriori by confirming the false positives in the frequent episodes discovered. The anomaly is due to the folding phase of the algorithm, which combines periods in order to compress data. We propose a main memory based solution to distinguish the false positives from the true frequent episodes. Our algorithm to validate the frequent episodes has several alternatives such as the naïve approach, the partitioned …

Csegrid Portal: A Secure Web-Based Solution For Providing Ubiquitious Access To Grid Services (Design, Development And Implementation Of A Prototype), Srikant D. Rao

Computer Science and Engineering Theses - Archive

Grid computing is emerging as a revolutionary concept for performing high performance computations on the grid. The grid infrastructure comprises of a large set of distributed computing resources that are shared across geographical and organizational boundaries. There is a need within the scientific community for friendly interfaces that can be used to obtain ubiquitous access to the grid resources. In this work, we address these needs by designing and implementing a web-based grid portal system (CSEGrid) that provides the user with transparent access to grid services like job submission, job status and resource monitoring, data transfer between grid resources, etc. …

Solving The Rubik's Cube With Parallel Processing, Aslesha Pramod Nargolkar

Computer Science and Engineering Theses - Archive

This thesis investigates parallel processing techniques for solving the 3 x 3 x 3 Rubik's Cube. We explore various state-space search based algorithmic approaches to optimally solve the Cube. The parallel processing approach is based on IDA* using a pattern database as the underlying heuristic because of its well established effectiveness. The parallel algorithm is an extension of the Michael Reid algorithm which is sequential. The parallel algorithm exhibits good speedup and scalability. Nearly 150 random as well as symmetrical cube configurations were tested for the experiments on sequential and parallel implementations. The proposed parallel algorithm using master-slave type of …