Digital Commons Network^™

Multi-Channel Fetal Magnetocardiographic Signal Seperation For Analysis Of Heart Rate Variability, Joshua Quaid Campbell

Theses and Dissertations

Objective: The objectives were to implement signal-processing techniques to separate the fetal magnetocardiogram (FMCG), as collected by SQUID (Superconducting QUantum Interference Device) gradiometers, from mixtures of maternal and fetal biomagnetic signals recorded during the antepartum period and to develop a database of normal FMCG values of the fetal cardiac time intervals and heart rate variability measures. Materials and Methods: The research was performed in three phases: 1) Independent component analysis (ICA), nonlinear filtering techniques, and orthogonal projection methods were optimized enabling the FMCG to be processed using traditional signal analysis techniques; 2) The cardiac time intervals and heart rate variability …

An Analysis Of Mentorship In Michigan Police Agencies, Jeffrey G. Swanson

Masters Theses

The purpose of this research is to investigate how newer police officers are familiarized into their agency with respect to the manner in which they were trained and mentored. The concept of mentoring programs has been highly successful in the private and business sectors for many years. Since the concept of formal mentoring programs in law enforcement is largely limited to date, this study incorporates research in several other disciplines, to determine if there may be a corollary regarding law enforcement and other disciplines, and if so, to what degree mentoring exists among patrol officers. A survey was distributed to …

Remotely Accessible Solar Energy Laboratory For High School Students, William J. Hutzel, David Goodman

School of Engineering Technology Faculty Publications

A remotely accessible solar energy laboratory has been developed for real-time experimentation using solar heating and photovoltaic equipment that is physically located at Purdue University. Indiana high school students are the first customers for this on-line resource. In addition to sensor data, the web-based laboratory includes lesson plans, tutorials, assessment questions, and a feedback utility. This project is helping science teachers meet new state science standards from the Indiana Department of Education, which call for hands-on laboratory activities and real time data analysis. Remotely accessed labs are becoming popular because they offer the opportunity for large numbers of students to …

Nova Quarterly: The University Of Texas At El Paso, The University Of Texas At El Paso University Communications

NOVA

Winter 2004, Vol. 42, No. 4; No. 160

Reflecting on the Future of UTEP in 2014

Practicing Practicing, Ladelle Mcwhorter

Philosophy Faculty Publications

"There is something ludicrous in philosophical discourse," Michel Foucault writes, "when it tries, from the outside, to dictate to others, to tell them where their truth is and how to find it... " (Foucault 1985, 9). In our age of moral relativism and multiculturalism, it is easy to hear in this sentence a simple condemnation of intellectuals who pose as authorities on questions of belief, and it is all too easy to agree; yes, of course, we ought not tell other people what to think. But given the issues, directions, and investments of Foucault's work, especially in The Use of …

Optimal Design Of Pump And Treat Remediation Systems : Treatment Modeling, Source Modeling And Time As A Decision Variable, Karen L. Endres

Dissertations, Master's Theses and Master's Reports - Open

Groundwater optimization and simulation is a maturing science. Research work contained in this thesis extends into areas that have not been fully explored. The incorporation of source and treatment systems selection and design produces information to help decision makers. Further insight is gained by evaluating some of the requirements and standards enforced by regulations such as, remediation time.

The technical aspects of a remediation system are set by the physical properties and the regulatory constraints enforced. As an example, the addition of a realistic treatment system gives more accurate cost estimates, but the pump and treat (PAT) systems parameters do …

Application Of Well Log Tomography To The Dundee And Rogers City Limestones, Michigan Basin, Usa, Mellisa A. Le M.

Dissertations, Master's Theses and Master's Reports - Open

The Michigan Basin is located in the upper Midwest region of the United States and is centered geographically over the Lower Peninsula of Michigan. It is filled primarily with Paleozoic carbonates and clastics, overlying Precambrian basement rocks and covered by Pleistocene glacial drift. In Michigan, more than 46,000 wells have been drilled in the basin, many producing significant quantities of oil and gas since the 1920s in addition to providing a wealth of data for subsurface visualization.

Well log tomography, formerly log-curve amplitude slicing, is a visualization method recently developed at Michigan Technological University to correlate subsurface data by utilizing …

Design And Implementation Of A 3d Computer Game Controller Using Inertial Mems Sensors, Ali Pezeshk

Dissertations, Master's Theses and Master's Reports - Open

Though 3D computer graphics has seen tremendous advancement in the past two decades, most available mechanisms for computer interaction in 3D are high cost and targeted for industry and virtual reality applications. Recent advances in Micro-Electro-Mechanical-System (MEMS) devices have brought forth a variety of new low-cost, low-power, miniature sensors with high accuracy, which are well suited for hand-held devices. In this work a novel design for a 3D computer game controller using inertial sensors is proposed, and a prototype device based on this design is implemented. The design incorporates MEMS accelerometers and gyroscopes from Analog Devices to measure the three …

Development Of Ion Exchange Models For Water Treatment And Application To The International Space Station Water Processor, David Robert Hokanson

Dissertations, Master's Theses and Master's Reports - Open

The International Space Station (ISS) requires a substantial amount of potable water for use by the crew. The economic and logistic limitations of transporting the vast amount of water required onboard the ISS necessitate onboard recovery and reuse of the aqueous waste streams. Various treatment technologies are employed within the ISS water processor to render the waste water potable, including filtration, ion exchange, adsorption, and catalytic wet oxidation. The ion exchange resins and adsorption media are combined in multifiltration beds for removal of ionic and organic compounds.

A mathematical model (MFBMODEL™) designed to predict the performance of a multifiltration (MF) …

Optimizing The Compression Stress Relief Process For 7050al Forgings, K. Escobar, B. Gonzales, J. Ortiz, P. Nguyen, C. Iskandar, P. Tiscareno, M. Castro, J. Gutierrez, J. Foyos, J. Ogren, Omar S. Es-Said, D. M. Bowden, E. W. Lee

Mechanical Engineering Faculty Works

Structural components machined from aluminum forgings can exhibit distortion and poor dimensional quality due to residual stresses formed primarily during heat treatment. To alleviate these problems, mechanically stress-relieved tempers are used in which a small amount of plastic strain is introduced after solution heat treatment and prior to aging. For hand-forged billets and die forgings, this strain is introduced by compression. Process specifications for compression stress relief typically allow a range of strains, and this process variability can in turn lead to inconsistent forging performance in machining. In addition, since cold work is known to accelerate the aging response and …

Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue 28, September 2004

Gamma Sigma Delta, Nebraska Chapter: Newsletters

PRESIDENT'S MESSAGE - Kevin Meyer, President, Gamma Sigma Delta

IN MEMORIAM

MOTION TO INCREASE INITIATION FEE AND CHAPTER MEMBERSHIP DUES

RECOMMENDED BYLAWS CHANGE

ANNUAL MEETING SEMINAR - Grape Expectations: Nebraska's Developing Grape and Wine Industry

GAMMA SIGMA DELTA SCHOLARS RECOGNITION RECEPTION

STUDENT HIGHLIGHTS

GAMMA SIGMA DELTA MEMBERSHIP REPORT (PRELIMINARY) - 2004

GAMMA SIGMA DELTA COMMITTEES, 2003-2004

NOMINATIONS FOR MEMBERSHIP TO GAMMA SIGMA DELTA

GAMMA SIGMA DELTA AWARD OF MERIT

GAMMA SIGMA DELTA TEACHING AWARD

GAMMA SIGMA DELTA RESEARCH AWARD

GAMMA SIGMA DELTA EXTENSION AWARD

Spatial Variability Of Groundwater Recharge - I. Is It Really Variable?

Journal of Spatial Hydrology

The spatial variability of recharge is an important consideration in estimating recharge especially as all methods of estimating it are 'point' estimates and in most places recharge varies in space. This paper along with the accompanying paper attempts to find a suitable answer to the question of taking this variability into account in estimating groundwater recharge. This paper attempts to determine if recharge is actually varying in space and that this is 'true' variability and that it is not an artefact of the method used for estimating recharge. It also pulls together information on spatial variability of recharge reported by …

Diffused Interface Model To Prevent Ingress Of Sea Water In Multi-Layer Coastal Aquifers

Journal of Spatial Hydrology

In many regions coastal aquifers are major source of supply of water to various sectors. However indiscriminate pumping from these aquifers leads to seawater intrusion which is difficult to contain. A numerical model is developed to study two-dimensional steady state seawater intrusion problem involving hydrodynamic dispersion in a synthetic multi-layered confined coastal aquifer. The intrusion model is used to investigate efficacy of seawater control measures involving freshwater recharge wells and combined system of freshwater recharge and saltwater discharge wells. The study found that depth of recharge well, its location from the seashore and well head are important parameters that can …

Gas Plume Species Identification By Regression Analyses, David Pogorzala, David W. Messinger, Carl Salvaggio, John R. Schott

Articles

Identification of constituent gases in effluent plumes is performed using linear least-squares regression techniques. Overhead thermal hyperspectral imagery is used for this study. Synthetic imagery is employed as the test-case for algorithm development. Synthetic images are generated by the Digital Imaging and Remote Sensing Image Generation (DIRSIG) Model. The use of synthetic data provides a direct measure of the success of the algorithm through the comparison with truth map outputs. In image test-cases, plumes emanating from factory stacks will have been identified using a separate detection algorithm. The gas identification algorithm being developed in this work will then be used …

Three-Terminal Si-Based Negative Differential Resistance Circuit Element With Adjustable Peak-To-Valley Current Ratios Using A Monolithic Vertical Integration, Sung-Yong Chung, Niu Jin, Paul Berger, Ronghua Yu, Phillip E. Thompson, Roger Lake, Sean L. Rommel, Santosh K. Kurinec

Articles

Si-based resonant bipolar transistors are demonstrated by the monolithic vertical integration of Si-based resonant interband tunnel diodes atop the emitter of Si/SiGe heterojunction bipolar transistors ~HBTs! on a silicon substrate. In the common emitter configuration, IC versus VCE shows negative differential resistance characteristics. The resulting characteristics are adjustable peak-to-valley current ratios, including infinite and negative values, and tailorable peak current densities by the control of the HBT base current under room temperature operation. With the integrated RITD-HBT combination, latching properties which are the key operating principle for high-speed mixed-signal, memory, and logic circuitry, are experimentally demonstrated.

Alternative Velocity Measurement Techniques In Synchroballistic Photography, Andrew Davidhazy

Articles

Synchroballistic cameras have many applications but mostly these are buried in specialized laboratories, hard to access military installations or in technical literary archives. This article illustrates and explains two data reduction approaches for obtaining useful data from synchroballistic photographs of missiles in flight.

Primary Beneficiaries: Newfoundland And Nova Scotia's Struggle To Achieve The Promise Of Petroleum Wealth, Matthew Clarke

Dalhousie Journal of Legal Studies

This paper provides an overview of some key issues which have arisen since the implementation of political resolutions to the contentious issue of offshore governance. Through an examination of: i) the role of the Petroleum Boards which manage offshore development; ii) the royalty and benefits regimes in place offshore Newfoundland and Nova Scotia; iii) the impact of the federal equalization scheme on provincial offshore revenues; and iv) some critical perspectives of the current offshore governance arrangements, this paper provides a background for the larger question of whether, in fact, the provinces have achieved the status of “primary beneficiaries” as originally …

Throwing Caution To The Wind: The Precautionary Principle, Nafta And Environmental Protection In Canada, Paul Guy

Dalhousie Journal of Legal Studies

According to the precautionary principle, the lack of full scientific certainty should not preclude measures to prevent environment degradation. This principle has been incorporated into numerous international instruments and is approaching the status of customary international law. Moreover, the Canadian government has embraced the principle and the Supreme Court of Canada recently confirmed it as a basis of environmental policy in 114957 Canada Ltée (Spraytech, Société dʼ’arrosage) v. Hudson (Town). This paper examines the ability of the precautionary principle to actually function as a guide for environmental policy in light of Canadaʼs international trade obligations. In particular, it considers Canadaʼs …

Searching For Amen| A Year In Poetry, Suzanne Therese Schmidt

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Rachel R. Grant: The Continuing Legacy Of The Feminine Ideal, Ronald W. Walker

BYU Studies

We can imagine ourselves visiting Aunt Rachel Grant, longtime president of the Thirteenth Ward Relief Society and one of The Church of Jesus Christ of Latter-day Saint's "leading ladies," at her home on Salt Lake City's Second East Street. In the year of our visit, 1890, her two-story, plastered adobe home partakes of the prevailing feminine ideal that stresses homemaking and handicraft. The stove is highly burnished, while the arms of each chair are covered with homemade lace crocheting. A corner "whatnot" meticulously displays pictures, small framed mottoes, wax and hair flowers, and other curios. Rachel's person also reflects her …

Quality Assurance Testing Of The Eclox-M In Detecting Terrorism Threats In Louisiana's Public Drinking Water Systems, Jessica Coleman

LSU Master's Theses

A quality assurance testing of the ECLOX-M™, a rapid water quality indicator used in potential terrorist attacks, was evaluated for its adequacy in nine regional Louisiana water systems. The ECLOX-M™ system uses enhanced chemiluminescence to measure toxicity in water by integration of a mixture of luminol (C₈H₇O₃N₃), and an oxidant in the presence of a catalyst enzyme - horseradish peroxidase (HRP). Water samples were tested for chemiluminescence, chlorine content, pH, and arsenic and/or nerve agent/pesticide contamination. In addition, three toxic industrial chemical standards were evaluated (mercury, a volatile liquid mixture, and a …

Evaluation Of Growth, Production And Cold Tolerance Of Four Varieties Of Tilapia, Patricio Enrique Paz

LSU Master's Theses

As global tilapia production grows, it is important to characterize varieties available for production and generate data on environmental tolerances. This study generated data on tolerances, adaptabilities and production characteristics of four tilapia varieties. Goals of this study were to: (1) compare growth of four tilapia varieties in two types of recirculating systems, (2) evaluate juvenile growth of seven tilapia varieties in fresh and brackishwater mesocosms, and (3) estimate cold tolerance of juveniles of four tilapia varieties in fresh and brackishwater. Nile tilapia (Oreochromis niloticus), blue tilapia (Oreochromis aureus), Mississippi commercial strain tilapia (MCS), and Florida red tilapia (FRT) were …

Annual Review Of The World Pheasant Association 2003/2004, World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Chairman of Trustees' report, Dick Potts

Treasurer's report and accounts, Ian Hoggarth

Conservation activities in 2003/2004, Philip J. K. McGowan and Rahul Kaul

WPA around the world: Highlights from the chapters

Cracid Specialist Group report, Dan M. Brooks

Grouse Specialist Group report, Ilse Storch

Megapode Specialist Group report, Rene Dekker, Darryl Jones, and Gillian C. Baker

Partridge, Quail and Francolin Specialist Group report, John P. Carroll

Pheasant Specialist Group report, Peter J. Garson

Conservation breeding in Europe and Gary Robbins and the United Kingdom Census, John Corder

WPA European Conservation Alain Hennache and Breeding Group, Michel St. Jaime

25 years …

Réalisations D'Entreprise En Prévention : La Mise Sur Pied D'Un Répertoire, Denise Chicoine, Michèle Gervais, Élise Ledoux

États de la question, rapports d’expertise et revues de littérature

À la suite d'une consultation réalisée par l'IRSST auprès des différents intervenants de son secteur, l'ASP construction a résolu d'entreprendre avec le support de l'IRSST, la création d'un répertoire de réalisations en prévention. Ce répertoire s'inscrit dans la vague d'intérêt que suscitent les banques de solutions à travers le monde. En effet, les banques de solutions sont reconnues comme d'excellents véhicules pour la diffusion des moyens en prévention au travail développés et adoptés par les entreprises.

L'objectif de cette collaboration était d'amorcer la première phase de la mise sur pied d'un répertoire de réalisations dans le secteur construction. L'IRSST a …

An Implicit Surface Modeling Technique Based On A Modular Neural Network Architecture, Manuel Carcenac

Turkish Journal of Electrical Engineering and Computer Sciences

Independently from artificial intelligence applications, an artificial neural network can be viewed as a powerful tool for function reconstruction. Previous papers used this property to model an implicit surface out of some control points by reconstructing its underlying scalar field. Such an approach requests the neural network to memorize the control points, which has turned problematic for complex surfaces. In our paper, we show that this problem can be efficiently tackled by adapting the architecture of the neural network to the features compounding the surface: by learning first these features independently and then blending them gradually together, our modular architecture …

Real-Time Classification Algorithm For Recognition Of Machine Operating Modes By Use Of Self-Organizing Maps, Gancho Vachkov, Yuhiko Kiyota, Koji Komatsu, Satoshi Fujii

Turkish Journal of Electrical Engineering and Computer Sciences

In this paper a new algorithm for classification and real-time recognition of different a-priorily assumed operating modes for construction machines is proposed. This algorithm utilizes the effectiveness of the Self-Organizing Maps (SOM) for creating the so called Separation Models, that are able to distinguish each operating mode separately. After training, these models are used in a real-time procedure, which calculates at each sampling time the minimal Euclidean distances from the current data point to a certain node of each SOM. Then the separation model (represented by a respective SOM) that has the least minimal distance to this data point defines …

Cover And Contents

Turkish Journal of Electrical Engineering and Computer Sciences

No abstract provided.

The Transnational And Sub-National In Global Crimes, Lan Cao

Faculty Publications

No abstract provided.

Utah Clean Energy: Market Research Project "Cougars For Clean Power", Laura Mactaggart, Marda Batt, Ted Olsen

Student Works

The research done in this project analyzes BYU students' position on preserving the environment and particularly measures their knowledge regarding wind power and their willingness to contribute to the purchase of wind power by BYU. Utah Clean Energy commissioned students of the Marriott School of Management at BYU to carry out this project. Research was based on 402 surveys, which were conducted throughout campus and BYU housing complexes. The survey questionnaire and the results of the survey are located in the appendix. From the data gathered, statistical analysis was performed including cross-tabulation, chi-square testing, z-test testing, correlation, regression, and purchase …

States, Courts, And Founders: Remarks On Killenbeck, Mark E. Brandon

Articles

No abstract provided.