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2009

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Infinite-Randomness Critical Point In The Two-Dimensional Disordered Contact Process, Thomas Vojta, A. Farquhar, J. Mast Jan 2009

Infinite-Randomness Critical Point In The Two-Dimensional Disordered Contact Process, Thomas Vojta, A. Farquhar, J. Mast

Physics Faculty Research & Creative Works

We study the nonequilibrium phase transition in the two-dimensional contact process on a randomly diluted lattice by means of large-scale Monte Carlo simulations for times up to 1010 and system sizes up to 8000×8000 sites. Our data provide strong evidence for the transition being controlled by an exotic infinite-randomness critical point with activated (exponential) dynamical scaling. We calculate the critical exponents of the transition and find them to be universal, i.e., independent of disorder strength. The Griffiths region between the clean and the dirty critical points exhibits power-law dynamical scaling with continuously varying exponents. We discuss the generality of our …

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Risk Indexes For Draft Ccl3 Chemicals, J. Alan Roberson, Matthew Lueders, Craig Adams, Jeffrey S. Rosen Jan 2009

Risk Indexes For Draft Ccl3 Chemicals, J. Alan Roberson, Matthew Lueders, Craig Adams, Jeffrey S. Rosen

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

To supplement the processes used for developing the draft third Contaminant Candidate List (CCL3) and better inform decisions made by the US Environmental Protection Agency on future CCLs, the authors offer an evaluation tool for efficiently synthesizing, visualizing, and organizing data for effective comparisons among contaminants. Graphical presentations of health effects-occurrence indexes were developed for more than 300 chemical contaminants, including those on the draft CCL3. a risk indexes framework was then used to elucidate the extent of available data, the data quality, and the underlying uncertainties for occurrence and toxicity. Choosing the appropriate contaminant for regulation is a complex …

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Esd Current Spread Measurement Using Mesh Structure, Jae-Deok Lim, David Pommerenke, Jong-Sung Lee, Byong-Su Seol Jan 2009

Esd Current Spread Measurement Using Mesh Structure, Jae-Deok Lim, David Pommerenke, Jong-Sung Lee, Byong-Su Seol

Electrical and Computer Engineering Faculty Research & Creative Works

If a PCB is struck by an ESD the injected current spreads throughout the PCB and returns via attached cables. During the current spread a variety of effects occur: The current spreads on the main ground and power planes, couples into traces and IC lead-frames and bond wires. Further, the PCB and the attached cables can form resonators causing ringing at their natural resonance frequencies. Understanding the current spread onto a PCB, best, also onto the traces is of great importance for gaining insight into ESD related problems on products. A test setup has been created that allows capturing and …

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Mobile Speed Estimation For Broadband Wireless Communications Over Rician Fading Channels, Y. Rosa Zheng, Chengshan Xiao Jan 2009

Mobile Speed Estimation For Broadband Wireless Communications Over Rician Fading Channels, Y. Rosa Zheng, Chengshan Xiao

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, a new algorithm is proposed to estimate mobile speed for broadband wireless communications, which often encounter large number of fading channel taps causing severe intersymbol interference. Different from existing algorithms, which commonly assume that the fading channel coefficients are available for the speed estimators, the proposed algorithm is based on the received signals which contain unknown transmitted data, unknown frequency selective fading channel coefficients possibly including line-of-sight (LOS) components, and random receiver noise. Theoretical analysis is first carried out from the received signals, and a practical algorithm is proposed based on the analytical results. The algorithm employs …

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Neural Network Demodulation For An Optical Sensor, Rohit Dua, Steve Eugene Watkins, Donald C. Wunsch Jan 2009

Neural Network Demodulation For An Optical Sensor, Rohit Dua, Steve Eugene Watkins, Donald C. Wunsch

Electrical and Computer Engineering Faculty Research & Creative Works

Methods and systems of neural network demodulation for an optical sensor. An optical sensor may be coupled to a structure and be capable of reflecting a reflected optical signal. A wavelength of the reflected optical signal may be spread based on a strain being applied to the structure. A replication device may receive the reflected optical signal from the optical sensor and produce a plurality of optical signals. A filter may be coupled to the replication device to receive an optical signal from the plurality of optical signals and filter the received optical signal. A detector may receive the filtered …

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Predicting Gas Mileage Using The T-Method, Parthiv Shah, Elizabeth A. Cudney, Vivek Jikar Jan 2009

Predicting Gas Mileage Using The T-Method, Parthiv Shah, Elizabeth A. Cudney, Vivek Jikar

Engineering Management and Systems Engineering Faculty Research & Creative Works

The T-method is a technique developed by Genichi Taguchi to calculate an overall prediction based on the signal-to-noise ratio without the use of Gram-Schmidt orthogonalization. the Taguchi methods, also known as Robust Design principles, are used for optimization through planning, conducting, and evaluating the results of experiments to determine the best levels of control factors. the primary goal of Robust Design is to minimize variance in the presence of noise factors to achieve a robust process. This paper outlines the T-method steps using a forecasting case study to calculate miles per gallon for vehicles with a univariate response to illustrate …

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Taproot™ Technology: Tree Coring For Fast, Noninvasive Plume Delineations, Joel Gerard Burken, Sallie Bailey, Matt Shurtliff, Jeff Mcdermott Jan 2009

Taproot™ Technology: Tree Coring For Fast, Noninvasive Plume Delineations, Joel Gerard Burken, Sallie Bailey, Matt Shurtliff, Jeff Mcdermott

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In Efforts to Evaluate the Use of Plants as a Forensic Tool for Delineating Contaminated Soil and Groundwater, a Laboratory Experiment and a Field Sampling Effort Were Undertaken. Site Assessments Are Often Costly and Inaccurate, Requiring Multiple Mobilizations to Hone in on Source Areas and Getting Accurate Estimates of Contaminant Extent and Distribution. as These Extensive Site Delineations Take Place, Valuable Time and Resources Are Lost. the Findings of This Study Show that Plants Can Be Used as a Tool to Evaluate a Variety of Subsurface Contaminants, Either in the Vadose Zone or in the Saturated Zone. in the First …

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Thermal Converter Devices, Systems And Control Methods, Richard A. Flanagan, Rod E. Hosilyk, Rob Arlt, Kakkattukuzhy M. Isaac, Ronald E. Loving, David Alan Gordon Jan 2009

Thermal Converter Devices, Systems And Control Methods, Richard A. Flanagan, Rod E. Hosilyk, Rob Arlt, Kakkattukuzhy M. Isaac, Ronald E. Loving, David Alan Gordon

Mechanical and Aerospace Engineering Faculty Research & Creative Works

A system is provided for reducing exhaust emissions. The system can comprise a series of chambers, an injector head, and a controller. The controller can maintain desired temperature zones and chemical environments inside the series of chambers, and the chambers and structures inside the system 10 can provide a desired travel path for the air, fuel, and untreated exhaust mixture inside.

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Resilient Moduli Of Granular Base Materials Using A Modified Type 5 Gradation, David Newton Richardson, S. M. Lusher Jan 2009

Resilient Moduli Of Granular Base Materials Using A Modified Type 5 Gradation, David Newton Richardson, S. M. Lusher

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Missouri Department of Transportation (MoDOT) in collaboration with the Missouri Limestone Producers Association (MLPA) was interested in determining what effect a change in the Type 5 aggregate base gradation specification would have on the resilient modulus (Mr) of said aggregate. The proposed change would lower the minimum allowable total percentage of material passing the #4 (4.75 mm mesh) sieve from 35% to 25%, and the #30 (0.600 mm mesh) sieve from 10% to 5%. The remainder of the gradation specification would remain unchanged. The rationale for this proposed change is that some aggregate producers believe the change could help …

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Quick Test For Percent Of Deleterious Material, David Newton Richardson Jan 2009

Quick Test For Percent Of Deleterious Material, David Newton Richardson

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Missouri Department of Transportation (MoDOT) is considering the replacement of its deleterious materials test method (TM-71) with test methods that are more objective. MoDOT contracted with the Missouri University of Science and Technology (Missouri S&T) to develop a system of test methods. Nine quarry/ledge samples representing seven geologic formations (four limestones and three dolomites) were supplied by MoDOT. The ledge samples represented three aggregates each for use in concrete, asphalt, and granular base. Samples with controlled contamination were also tested, bringing the total to 18. The aggregates were subjected to fifteen test methods. This data, coupled with MoDOT historical …

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Resilient Moduli Of Typical Missouri Soils And Unbound Granular Base Materials, David Newton Richardson, Thomas M. Petry, Yu-Ning Louis Ge, Y. P. Han, S. M. Lusher Jan 2009

Resilient Moduli Of Typical Missouri Soils And Unbound Granular Base Materials, David Newton Richardson, Thomas M. Petry, Yu-Ning Louis Ge, Y. P. Han, S. M. Lusher

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The objective of this project is to accurately determine the resilient moduli for common Missouri subgrade soils and unbound granular base materials in accordance with the AASHTO T 307 test method. The test results included moduli data from 27 common subgrade soils out of the 99 Missouri soil associations and from 5 unbound granular bases. These materials were tested at their optimum water content and at an elevated water content, which would normally occur as a worse case scenario during the life of a pavement. The five unbound granular base materials were tested at two different gradations (high and low …

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Antibacterial Properties Of A Tri-Sodium Citrate Modified Glass Polyalkenoate Cement, A. W. Wren, D. Boyd, R. Thornton, J. C. Cooney, Mark R. Towler Jan 2009

Antibacterial Properties Of A Tri-Sodium Citrate Modified Glass Polyalkenoate Cement, A. W. Wren, D. Boyd, R. Thornton, J. C. Cooney, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

Primary deep infection following joint replacement surgery accounts for 7% of all revisions. Glass polyalkenoate cements (GPCs) have previously been shown to exhibit antibacterial properties. The present study had two objectives. The first was to determine if addition of tri-sodium citrate (TSC) to the powder phase of an Al-free GPC (0.04 SrO-0.12 CaO-0.36 ZnO-0.48 SiO2, by mole fraction) enhanced the resultant cement's antibacterial properties against three strains of bacteria that are commonly found in periprosthetic sites following total joint replacements (TJRs); namely, E. coli, B. fragilis, and S. epidermidis. Four cement sets were prepared, which contained 0 wt% TSC (control), …

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Preliminary Investigation Of Novel Bone Graft Substitutes Based On Strontium-Calcium-Zinc-Silicate Glasses, D. Boyd, G. Carroll, Mark R. Towler, C. Freeman, P. Farthing, I. M. Brook Jan 2009

Preliminary Investigation Of Novel Bone Graft Substitutes Based On Strontium-Calcium-Zinc-Silicate Glasses, D. Boyd, G. Carroll, Mark R. Towler, C. Freeman, P. Farthing, I. M. Brook

Chemical and Biochemical Engineering Faculty Research & Creative Works

Bone graft procedures typically require surgeons to harvest bone from a second site on a given patient (Autograft) before repairing a bone defect. However, this results in increased surgical time, excessive blood loss and a significant increase in pain. In this context a synthetic bone graft with excellent histocompatibility, built in antibacterial efficacy and the ability to regenerate healthy tissue in place of diseased tissue would be a significant step forward relative to current state of the art philosophies. We developed a range of calcium-strontium-zinc-silicate glass-based bone grafts and characterized their structure and physical properties, then evaluated their in vitro …

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Structural Study On Ammonia Borane For Hydrogen Storage, William Joseph James, L. Jagat, Q. Cai, William B. Yelon, J. B. Yang Jan 2009

Structural Study On Ammonia Borane For Hydrogen Storage, William Joseph James, L. Jagat, Q. Cai, William B. Yelon, J. B. Yang

Chemistry Faculty Research & Creative Works

Ammonia borane (BH3NH3) is a promising hydrogen storage material because of its high gravimetric (19.6 wt.% H2) and volumetric hydrogen density with an accompanying moderate decomposition temperature. Previously reported structures determined by using x-ray and neutron diffraction on hydrides show differences in bond lengths and atomic coordination. Here, the crystal structures of fully and half deuterated ammonia borane were investigated as a function of temperature using powder neutron diffraction. the neutron diffraction patterns show a significant difference due to large difference in the scattering length of D and H. It is evident that an order-disorder phase transition occurs around 225 …

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An Improved Upfc Control For Oscillation Damping, Jagannathan Sarangapani, Mariesa Crow, Jianjun Guo Jan 2009

An Improved Upfc Control For Oscillation Damping, Jagannathan Sarangapani, Mariesa Crow, Jianjun Guo

Electrical and Computer Engineering Faculty Research & Creative Works

This paper proposes a new control approach for a unified power flow controller (UPFC) for power system oscillation damping. This control is simple to implement, yet is valid over a wide range of operating conditions. It is also effective in the presence of multiple modes of oscillation. The proposed control is implemented in several test systems and is compared against a traditional PI control.

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Coordinated Reactive Power Control Of A Large Wind Farm And A Statcom Using Heuristic Dynamic Programming, Wei Qiao, Ronald G. Harley, Ganesh K. Venayagamoorthy Jan 2009

Coordinated Reactive Power Control Of A Large Wind Farm And A Statcom Using Heuristic Dynamic Programming, Wei Qiao, Ronald G. Harley, Ganesh K. Venayagamoorthy

Electrical and Computer Engineering Faculty Research & Creative Works

A novel interface neurocontroller (INC) is proposed for the coordinated reactive power control between a large wind farm equipped with doubly fed induction generators (DFIGs) and a static synchronous compensator (STATCOM). The heuristic dynamic programming (HDP) technique and radial basis function neural networks (RBFNNs) are used to design this INC. It effectively reduces the level of voltage sags as well as the over-currents in the DFIG rotor circuit during grid faults, and therefore, significantly enhances the fault ride-through capability of the wind farm. The INC also acts as a coordinated external damping controller for the wind farm and the STATCOM, …

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Phonon Confinement Effects In The Raman Spectrum Of Nanodiamond, Sebastian Osswald, Vadym Mochalin, Mickaël Havel, Gleb N. Yushin, Yury G. Gogotsi Jan 2009

Phonon Confinement Effects In The Raman Spectrum Of Nanodiamond, Sebastian Osswald, Vadym Mochalin, Mickaël Havel, Gleb N. Yushin, Yury G. Gogotsi

Chemistry Faculty Research & Creative Works

Nanodiamonds (ND) exhibit unique properties due to their small size and high surface-to-volume ratio compared to bulk diamonds. A reduction in crystal size also affects ND Raman spectra. The confinement of optical phonons in nanocrystals (<10 nm) results in asymmetrically broadened Raman lines, which are shifted toward lower wavenumbers. The phonon confinement model (PCM) relates the observed changes in the Raman spectra to the crystal size and can be used for size characterization at the nanoscale. While the PCM was successfully applied to a variety of materials including Si and BN, results remained unsatisfactory in the case of ND. In order to improve the agreement between the predictions of the model and experimental Raman spectra of ND, effects such as crystal size distribution, lattice defects, and the energy dispersion of the phonon modes were taken into consideration and incorporated into the PCM. This work has shown that phonon wave vectors from small vibrational domains lead to a broad shoulder peak at ~1250 cm-1, that is often observed in the Raman spectrum of ND.

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Interview No. 1540, Fred Loya Jan 2009

Interview No. 1540, Fred Loya

Combined Interviews

Fred Loya was born to immigrant parents in Santa, California. His mother had a well-established family and his father worked different jobs through his life until he financed his own grocery store. Loya worked on his family ranch right out of college, he was able to do book keeping and started buying cattle for the ranch. Through buying cattle, he met Bill Bur who became Loya’s employer. Bur later lost his business and became an insurance agent with Farmers Insurance. He influenced Loya to become an agent as well, despite objection from his wife. Loya became one of the most …

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Laboratory Schools Annual Report, 2008-2009, Laboratory Schools, Illinois State University Jan 2009

Laboratory Schools Annual Report, 2008-2009, Laboratory Schools, Illinois State University

Annual Reports – Laboratory Schools

Illinois State University Laboratory Schools annual report

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Gender Performativity In H.D.'S Sea Garden, Angela Sanigar Jan 2009

Gender Performativity In H.D.'S Sea Garden, Angela Sanigar

Theses : Honours

Sea Garden was the first book of poetry written by H.D. in 1916. Read through the lens of Judith Butler's theory of performativity, the book can be interpreted as an investigation of gender and identity in ways that challenge the confines of heteronormativity. Ultimately, I will argue that the poems work in ways close to Judith Butler's sense of 'queer', although as will become clear, my 'queer' reading of H.D.'s Sea Garden differs from the dominant queer readings of her work that currently exist. To this end, I will then discuss how Sea Garden operates as a community of different …

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The Validity Of Deal Protection Devices Under Anglo-American Law, Wai Yee Wan Jan 2009

The Validity Of Deal Protection Devices Under Anglo-American Law, Wai Yee Wan

Research Collection Yong Pung How School Of Law

This paper analyzes deal protection devices, specifically termination fees and lockup agreements, that are entered into by publicly listed target companies in favor of the bidders, under Anglo-American law. U.S. (specifically Delaware) and U.K. law and regulation differ markedly in the regulation of these devices. Delaware law generally gives more leeway for the target board to enter into deal protection devices. The U.K. regime is much more shareholder-centric and severely restricts most types of deal protections. This paper examines the differences and argues that the U.K. regime is the result of the strong influence of institutional share ownership. In contrast, …

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Life Of Christ, William C. Hackett Jr Jan 2009

Life Of Christ, William C. Hackett Jr

Syllabus Repository

No abstract provided.

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Hermeneutics, Steelman Library Jan 2009

Hermeneutics, Steelman Library

Syllabus Repository

No abstract provided.

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Life Of Christ, Terris Neuman Jan 2009

Life Of Christ, Terris Neuman

Syllabus Repository

No abstract provided.

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Life Of Christ, William Hackett Jan 2009

Life Of Christ, William Hackett

Syllabus Repository

No abstract provided.

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Creeds And Statements Of Belief In Early Adventist Thought, S. Joseph Kidder Jan 2009

Creeds And Statements Of Belief In Early Adventist Thought, S. Joseph Kidder

Andrews University Seminary Studies (AUSS)

No abstract provided.

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Judging The Sabbath: Discovering What Can’T Be Found In Colossians 2:16 [Review] / Ron Du Preez, Edwin E. Reynolds Jan 2009

Judging The Sabbath: Discovering What Can’T Be Found In Colossians 2:16 [Review] / Ron Du Preez, Edwin E. Reynolds

Andrews University Seminary Studies (AUSS)

No abstract provided.

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Investigating The Presuppositional Realm Of Biblical-Theological Methodology, Part I: Dooyeweerd On Reason, Oliver Glanz Jan 2009

Investigating The Presuppositional Realm Of Biblical-Theological Methodology, Part I: Dooyeweerd On Reason, Oliver Glanz

Andrews University Seminary Studies (AUSS)

No abstract provided.

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Review Article Of Adela Collins's Mark, Hermenian Commentary, Thomas Shepherd Jan 2009

Review Article Of Adela Collins's Mark, Hermenian Commentary, Thomas Shepherd

Andrews University Seminary Studies (AUSS)

No abstract provided.

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Volviendo A Los Orígenes: Entendiendo El Pentateuco. Ponéncias Teológicas Presentadas En El Vi Simpósio Bíblico-Teológico Sudamericano [Review] / Merling Alomía, Felix H. Cortez Jan 2009

Volviendo A Los Orígenes: Entendiendo El Pentateuco. Ponéncias Teológicas Presentadas En El Vi Simpósio Bíblico-Teológico Sudamericano [Review] / Merling Alomía, Felix H. Cortez

Andrews University Seminary Studies (AUSS)

No abstract provided.

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