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Compressed Sensing Based Analytical Modeling For Through-Silicon-Via Pairs, Tao Wang, Jingook Kim, Jun Fan, Yiyu Shi Oct 2011

Compressed Sensing Based Analytical Modeling For Through-Silicon-Via Pairs, Tao Wang, Jingook Kim, Jun Fan, Yiyu Shi

Electrical and Computer Engineering Faculty Research & Creative Works

Through-Silicon-Vias (TSVs) are the critical enabling technique for three-dimensional integrated circuits (3D ICs). While there are a few existing works in literature to model the electrical performance of TSVs, they are either for fixed geometry or in lack of accuracy. in this paper, we use compressed sensing technique to model the electrical performance of TSV pairs. Experimental results indicate that with an exceptionally small number of samples, our model has a maximum relative error of 3.94% compared with full-wave simulations over a wide range of geometry parameters and frequencies. © 2011 IEEE.

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Direct Numerical Simulation Of Hypersonic Turbulent Boundary Layers. Part 4. Effect Of High Enthalpy, L. (Lian) Duan, M. P. Martín Oct 2011

Direct Numerical Simulation Of Hypersonic Turbulent Boundary Layers. Part 4. Effect Of High Enthalpy, L. (Lian) Duan, M. P. Martín

Mechanical and Aerospace Engineering Faculty Research & Creative Works

In this paper we present direct numerical simulations (DNS) of hypersonic turbulent boundary layers to study high-enthalpy effects. We study high-and low-enthalpy conditions, which are representative of those in hypersonic flight and ground-based facilities, respectively. We find that high-enthalpy boundary layers closely resemble those at low enthalpy. Many of the scaling relations for low-enthalpy flows, such as van-Driest transformation for the mean velocity, Morkovin's scaling, and the modified strong Reynolds analogy hold or can be generalized for high-enthalpy flows by removing the calorically perfect-gas assumption. We propose a generalized form of the modified Crocco relation, which relates the mean temperature …

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Effectiveness Of Projectile Screening In Single And Multiple Ionization Of Ne By B2⁺, W. Wolff, H. Luna, A. C.F. Santos, E. C. Montenegro, Robert D. Dubois, C. C. Montanari, J. E. Miraglia Oct 2011

Effectiveness Of Projectile Screening In Single And Multiple Ionization Of Ne By B2⁺, W. Wolff, H. Luna, A. C.F. Santos, E. C. Montenegro, Robert D. Dubois, C. C. Montanari, J. E. Miraglia

Physics Faculty Research & Creative Works

Pure multiple ionization cross sections of Ne by B2+ projectiles have been measured in the energy range of 0.75 to 4.0 MeV and calculated using the continuum distorted wave-eikonal initial state approximation. the experiment and calculations show that the ionization cross sections by B2+, principally for the production of highly charged recoils, is strongly enhanced when compared to the bare projectile with the same charge state, He2+, at the same velocities. © 2011 American Physical Society.

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The Missouri Miner, October 6, 2011 Oct 2011

The Missouri Miner, October 6, 2011

The Missouri Miner Newspaper

No abstract provided.

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Substrate Binding Modulates The Activity Of Mycobacterium Smegmatis G, A Flavin-Dependent Monooxygenase Involved In The Biosynthesis Of Hydroxamate-Containing Siderophores, Reeder Robinson, Pablo Sobrado Oct 2011

Substrate Binding Modulates The Activity Of Mycobacterium Smegmatis G, A Flavin-Dependent Monooxygenase Involved In The Biosynthesis Of Hydroxamate-Containing Siderophores, Reeder Robinson, Pablo Sobrado

Chemistry Faculty Research & Creative Works

Mycobacterium smegmatis G (MbsG) is a flavin-dependent monooxygenase that catalyzes the NAD(P)H- and oxygen-dependent hydroxylation of the terminal amino group on the side chain of l-lysine in the biosynthetic pathway of the siderophore mycobactin. Mycobactins are essential for mycobacterium growth under iron-limiting conditions encountered during infection in mammals. Thus, enzymes involved in the biosynthesis of mycobactin represent potential drug targets. MbsG was expressed in Escherichia coli and purified using metal affinity and ionic exchange chromatographies. Recombinant MbsG represents the first member of this class of enzymes isolated in the active form, with a tightly bound FAD cofactor. The k cat …

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An Analysis Of Online News Comments On Children's Racial Perceptions In The U.S., Hsin-Liang Chen, Robin A. Moeller Oct 2011

An Analysis Of Online News Comments On Children's Racial Perceptions In The U.S., Hsin-Liang Chen, Robin A. Moeller

University Libraries Faculty Research & Creative Works

This paper studies how a large online community made sense of a television and online news organization's cosponsored study of children's perceptions of race in the America. 2,906 readers' comments from the CNN special report were collected in December 2010. After classifying these comments, there were four data sets: all comments, negative comments, positive comments, and popular comments (comments with "Like). Wordstat, a contentanalysis software program, was used to analyze the word/phrase frequency of four data sets. The purpose of the content analysis was to identify any similar pattern of word/phrase among the data sets. Of 2,906 comments, 1,745 comments …

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Effective Approach For Estimating Turbulence-Chemistry Interaction In Hypersonic Turbulent Boundary Layers, L. (Lian) Duan, M. P. Martín Oct 2011

Effective Approach For Estimating Turbulence-Chemistry Interaction In Hypersonic Turbulent Boundary Layers, L. (Lian) Duan, M. P. Martín

Mechanical and Aerospace Engineering Faculty Research & Creative Works

An effective approach for estimating turbulence-chemistry interaction in hypersonic turbulent boundary layers is proposed, based on "laminar- chemistry" Reynolds-averaged Navier-Stokes mean flow solutions. The approach combines an assumed probability density function with a temperature fluctuation scaling, which provides the second moment for specifying the shape of the probability density function. As a result, the effects of temperature fluctuation on chemical production rates can be estimated without solving an additional moment evolution equation. The validity of this method is demonstrated using direct-numerical-simulation data. This approach can be used to identify regions with potentially significant turbulence-chemistry interaction in hypersonic boundary layers and …

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Cloudy And Starry Milia-Like Cysts: How Well Do They Distinguish Seborrheic Keratoses From Malignant Melanomas?, S. M. Stricklin, William V. Stoecker, M. C. Oliviero, H. S. Rabinovitz, S. K. Mahajan Oct 2011

Cloudy And Starry Milia-Like Cysts: How Well Do They Distinguish Seborrheic Keratoses From Malignant Melanomas?, S. M. Stricklin, William V. Stoecker, M. C. Oliviero, H. S. Rabinovitz, S. K. Mahajan

Chemistry Faculty Research & Creative Works

Background Seborrheic keratoses are the most common skin lesions known to contain small white or yellow structures called milia-like cysts (MLCs). Varied appearances can sometimes make it difficult to differentiate benign lesions from malignant lesions such as melanoma, the deadliest form of skin cancer found in humans. Objective the purpose of this study was to determine the statistical occurrence of MLCs in benign vs. malignant lesions. Methods a medical student with 10 months experience in examining approximately 1000 dermoscopy images and a dermoscopy-naïve observer analyzed contact non-polarized dermoscopy images of 221 malignant melanomas and 175 seborrheic keratoses for presence of …

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Estimation Of The Depth Of Anisotropy Using Spatial Coherency Of Shear-Wave Splitting Parameters, Kelly H. Liu, Stephen S. Gao Oct 2011

Estimation Of The Depth Of Anisotropy Using Spatial Coherency Of Shear-Wave Splitting Parameters, Kelly H. Liu, Stephen S. Gao

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Shear-wave splitting (SWS) analyses are essential in understanding the structure and dynamics of the Earth's deep interior. While splitting measurements have excellent horizontal resolution relative to other anisotropy-measuring techniques, their vertical resolution is low due to the steep incidence angle of the seismic phases used by the analyses. Here, using synthetic and real data, we present and test a simple approach to estimate the optimal depth of anisotropy by measuring the spatial coherency of the splitting parameters. The approach searches for the optimal depth by computing a spatial variation factor. Tests using synthetic SWS data produced with varying number of …

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Phytoscreening For Chlorinated Solvents Using Rapid In Vitro Spme Sampling: Application To Urban Plume In Verl, Germany, Matt A. Limmer, Jean Christophe Balouet, Frank Karg, Don A. Vroblesky, Joel Gerard Burken Oct 2011

Phytoscreening For Chlorinated Solvents Using Rapid In Vitro Spme Sampling: Application To Urban Plume In Verl, Germany, Matt A. Limmer, Jean Christophe Balouet, Frank Karg, Don A. Vroblesky, Joel Gerard Burken

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Rapid Detection and Delineation of Contaminants in Urban Settings is Critically Important in Protecting Human Health. Cores from Trees Growing above a Plume of Contaminated Groundwater in Verl, Germany, Were Collected in 1 Day, with Subsequent Analysis and Plume Mapping Completed over Several Days. Solid-Phase Microextraction (SPME) Analysis Was Applied to Detect Tetrachloroethene (PCE) and Trichloroethene (TCE) to Below Nanogram/liter Levels in the Transpiration Stream of the Trees. the Tree Core Concentrations Showed a Clear Areal Correlation to the Distribution of PCE and TCE in the Groundwater. Concentrations in Tree Cores Were Lower Than the Underlying Groundwater, as Anticipated; However, …

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Monitoring The Early-Age Hydration Of Self-Compacting Concrete Using Ultrasonic P-Wave Transmission And Isothermal Calorimetry, Bram Desmet, Kelly Chrysanthe Atitung, Miguel Angel Abril Sanchez, John Vantomme, Dimitri Feys, Nicolas Robeyst, Katrien Audenaert, Geert De Schutter, Veerle Boel, Gert Heirman, Özlem Cizer, Lucie Vandewalle, Dionys Van Gemert Oct 2011

Monitoring The Early-Age Hydration Of Self-Compacting Concrete Using Ultrasonic P-Wave Transmission And Isothermal Calorimetry, Bram Desmet, Kelly Chrysanthe Atitung, Miguel Angel Abril Sanchez, John Vantomme, Dimitri Feys, Nicolas Robeyst, Katrien Audenaert, Geert De Schutter, Veerle Boel, Gert Heirman, Özlem Cizer, Lucie Vandewalle, Dionys Van Gemert

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Early-Age Hydration (B48 H) of a Series of Self-Compacting Concretes and Corresponding Mortars and One Traditionally Vibrated Concrete and Mortar is Monitored in a Continuous Way using Ultrasonic Testing and Isothermal Calorimetry. the Mixtures Differ in Type of Mineral Addition, Superplasticizer, Cement, Cement-To-Powder Ratio and Water-To-Powder Ratio. the Influence of These Different Mixture Compositions on the Kinetics of the Hydration during the First Days of the Hydration is Characterized by the Heat Production Rate Q and the Evolution of the P-Wave Velocity, which is a Consequence of the Microstructural Changes. the Variations in the Acceleration Caused by Mineral Additions …

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Reply To "Comment On 'Counterintuitive Consequence Of Heating In Strongly-Driven Intrinsic Junctions Of Bi₂Sr₂Cacu₂O 8+Δ Mesas'", Cihan Kurter, Lutfi Ozyuzer, Thomas Proslier, John F. Zasadzinski, David G. Hinks, Kenneth E. Gray Oct 2011

Reply To "Comment On 'Counterintuitive Consequence Of Heating In Strongly-Driven Intrinsic Junctions Of Bi₂Sr₂Cacu₂O 8+Δ Mesas'", Cihan Kurter, Lutfi Ozyuzer, Thomas Proslier, John F. Zasadzinski, David G. Hinks, Kenneth E. Gray

Physics Faculty Research & Creative Works

The main criticism raised in the preceding Comment concerns our suggestion that sharp conduction peaks in Bi2Sr2CaCu2O 8+δ mesas, along with absent dip-hump features, may, in general, be a result of self-heating. The author points to the variety of experimental configurations, matrix-element effects, and doping dependencies that might allow a diversity of conductance spectra. We argue that numerous mesa studies (with fixed matrix elements) firmly establish the systematic development of sharp conductance peaks with increased self-heating, and thus, the issue of nonuniversality of tunneling characteristics is not relevant. The author mentions a number of studies that …

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Generation Of Isolated Attosecond Pulses In The Far Field By Spatial Filtering With An Intense Few-Cycle Mid-Infrared Laser, Cheng Jin, Anh-Thu Le, Carlos A. Trallero-Herrero, C. D. Lin Oct 2011

Generation Of Isolated Attosecond Pulses In The Far Field By Spatial Filtering With An Intense Few-Cycle Mid-Infrared Laser, Cheng Jin, Anh-Thu Le, Carlos A. Trallero-Herrero, C. D. Lin

Physics Faculty Research & Creative Works

We report theoretical calculations of high-order harmonic generation (HHG) of Xe with the inclusion of multielectron effects and macroscopic propagation of the fundamental and harmonic fields in an ionizing medium. By using the time-frequency analysis we show that the reshaping of the fundamental laser field is responsible for the continuum structure in the HHG spectra. We further suggest a method for obtaining an isolated attosecond pulse (IAP) by using a filter centered on axis to select the harmonics in the far field with different divergence. We also discuss the carrier-envelope-phase dependence of an IAP and the possibility to optimize the …

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Orientation Dependence Of The Ionization Of Co And No In An Intense Femtosecond Two-Color Laser Field, H. Li, D. Ray, S. De, I. Znakovskaya, W. Cao, G. Laurent, Z. Wang, M. F. Kling, Anh-Thu Le, C. L. Cocke Oct 2011

Orientation Dependence Of The Ionization Of Co And No In An Intense Femtosecond Two-Color Laser Field, H. Li, D. Ray, S. De, I. Znakovskaya, W. Cao, G. Laurent, Z. Wang, M. F. Kling, Anh-Thu Le, C. L. Cocke

Physics Faculty Research & Creative Works

Two-color (800- and 400-nm) short (45-fs) linearly polarized pulses are used to ionize and dissociate CO and NO. The emission of Cq+, Nq+, and O⁺ fragments indicates that the higher ionization rate occurs when the peak electric field points from C to O in CO and from N to O in NO. This preferred direction is in agreement with that predicted by Stark-corrected strong-field-approximation calculations.

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Simulation Of The Fluid Flow-Related Phenomena In The Electrolyte Of An Aluminum Electrolysis Cell, Yufeng Wang, Lifeng Zhang, Xiangjun Zuo Oct 2011

Simulation Of The Fluid Flow-Related Phenomena In The Electrolyte Of An Aluminum Electrolysis Cell, Yufeng Wang, Lifeng Zhang, Xiangjun Zuo

Materials Science and Engineering Faculty Research & Creative Works

A full-scale water model and mathematical simulation were used to study the fluid flow-related phenomena in a water model of an aluminum electrolysis cell. the time-dependent, multiphase fluid flow model was developed to represent the complex transient flow in the electrolysis bath. the accuracy of the mathematical model was validated by the ink dispersion and laser doppler velocimetry measurements in the water model. the shape, motion, release frequency of large-size bubbles, the fluid flow pattern, and the electrolyte-metal interface were predicted by the mathematical simulation. the design and operation of the anode were discussed, including the effect of the anode …

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The Bridge Newsletter Winter 2011, Missouri University Of Science And Technology Oct 2011

The Bridge Newsletter Winter 2011, Missouri University Of Science And Technology

The Bridge Newsletter

-Living intentionally: Meet the Oerthers
-Making a lasting impact
-Phytoforensics
-The simple things of life

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Remote Sensing Of Soil Moisture Using Airborne Hyperspectral Data, Michael Finn, Mark Lewis, David Bosch, Mario Giraldo, Kristina Yamamoto, Dana Sullivan, Russell Kincaid, Ronaldo Luna, Gopala Allam, Craig Kvien, Michael Williams Oct 2011

Remote Sensing Of Soil Moisture Using Airborne Hyperspectral Data, Michael Finn, Mark Lewis, David Bosch, Mario Giraldo, Kristina Yamamoto, Dana Sullivan, Russell Kincaid, Ronaldo Luna, Gopala Allam, Craig Kvien, Michael Williams

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Landscape assessment of soil moisture is critical to understanding the hydrological cycle at the regional scale and in broad-scale studies of biophysical processes affected by global climate changes in temperature and precipitation. Traditional efforts to measure soil moisture have been principally restricted to in situ measurements, so remote sensing techniques are often employed. Hyperspectral sensors with finer spatial resolution and narrow band widths may offer an alternative to traditional multispectral analysis of soil moisture, particularly in landscapes with high spatial heterogeneity. This preliminary research evaluates the ability of remotely sensed hyperspectral data to quantify soil moisture for the Little River …

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China Earthquake Reconnaissance Report: Performance Of Transportation Structures During The May 12, 2008, M7.9 Wenchuan Earthquake, Wen-Huei Phillip Yen, Genda Chen, Mark Yashinski, Youssef M.A. Hashash, Curtis J. Holub, Kehai Wang, Xiaodong Guo Oct 2011

China Earthquake Reconnaissance Report: Performance Of Transportation Structures During The May 12, 2008, M7.9 Wenchuan Earthquake, Wen-Huei Phillip Yen, Genda Chen, Mark Yashinski, Youssef M.A. Hashash, Curtis J. Holub, Kehai Wang, Xiaodong Guo

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This report documents the lessons learned from damage caused in the May 12, 2008, M7.9 earthquake in Wenchuan County, China. The damage to the 14 observed bridges reminded the researchers of damage suffered during the 1971 San Fernando Earthquake in California. The bridges had few seismic details such as long seats, large shear keys, or tightly spaced transverse reinforcement. Most arch and girder bridges collapsed due to surface rupturing of the seismic faults in the Longmen-Shan thrust zone. A significant portion of roadways and bridges were pushed away or buried by landslides in the steep slopes of mountainous terrain. Damage …

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Modification Of Digital Music Files For Use In Human Temporary Threshold Shift Studies, C. G. Le Prell, Q. Yang, J. G. Harris Oct 2011

Modification Of Digital Music Files For Use In Human Temporary Threshold Shift Studies, C. G. Le Prell, Q. Yang, J. G. Harris

Electrical and Computer Engineering Faculty Research & Creative Works

An exposure that is reproducible across clinical/laboratory environments, and appealing to subjects, is described here. Digital music files are level-equated within and across songs such that playlists deliver an exposure that is consistent across time. Modified music is more pleasant to listen to than pure tones or shaped noise and closely follows music exposures subjects may normally experience. Multiple therapeutics reduce noise-induced hearing loss in animals, but human trial design is complicated by limited access to noise-exposed subject populations. The development of standard music exposure parameters for temporary threshold shift studies would allow comparison of protection across agents with real-world …

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Post-Earthquake Reconnaissance Report On Transportation Infrastructure Impact Of The February 27, 2010, Offshore Maule Earthquake In Chile, Wen-Huei Phillip Yen, Genda Chen, Ian G. Buckle, Tony M. Allen, Daniel E. Alzamora, Jeffrey Ger, Juan G. Arias Oct 2011

Post-Earthquake Reconnaissance Report On Transportation Infrastructure Impact Of The February 27, 2010, Offshore Maule Earthquake In Chile, Wen-Huei Phillip Yen, Genda Chen, Ian G. Buckle, Tony M. Allen, Daniel E. Alzamora, Jeffrey Ger, Juan G. Arias

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This report documents the findings and lessons learned from the February 27, 2010, M8.8 offshore Maule earthquake in Chile. Fewer than 0.15 percent of the bridges in Chile's inventory, most built after 1995, collapsed or suffered damage that rendered them useless. Many spans of precast prestressed discontinuous girder bridges with continuous decks fell off their supports, probably due to significant in-plane rotation of the superstructure as a result of severe shaking. Lateral steel stoppers used to provide both vertical and lateral restraints on girders were largely unsuccessful due to their inadequate connection detail to cap beams and abutments. Reinforced concrete …

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Direct Shear Tests On Jsc-1a Lunar Regolith Simulant, Masafumi Iai, Ronaldo Luna Oct 2011

Direct Shear Tests On Jsc-1a Lunar Regolith Simulant, Masafumi Iai, Ronaldo Luna

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A series of direct shear tests were conducted on the JSC-1A lunar regolith simulant in a 101.6-mm- (4-in.-) diameter container. the direct shear test provides a unique mode of failure that aids the development of excavation tools for the Moon. Relative density and normal load were varied to study the strength behavior of such granular material at peak and critical state conditions. the values of the internal friction angle ranged from 30 to 70. a relationship between the internal friction angle of the direct shear and the published triaxial compression test results is presented. Additionally, the measured dilatancy angle is …

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Longitudinal Evaluation Of A Gis Laboratory In A Transportation Engineering Course, Ghulam H. Bham, Dan Cernusca, Ronaldo Luna, Uday R.R. Manepalli Oct 2011

Longitudinal Evaluation Of A Gis Laboratory In A Transportation Engineering Course, Ghulam H. Bham, Dan Cernusca, Ronaldo Luna, Uday R.R. Manepalli

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper focuses on the potential impact of student-centered feedback for enhancing the learning experience of civil engineering students that used a geographic information system (GIS) based tutorial in a transportation engineering course. the tutorial was implemented in a laboratory environment developed as a self-guided activity supported by a web-Based learning system. the formative research proposed in this study includes a series of four successive implementations of this laboratory. Students' performance, beliefs, and perceptions were monitored by using a mixed methods design approach and weaknesses identified from early implementations were addressed before the next implementation of the laboratory activity. the …

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On The Curse Of Dimensionality In Supervised Learning Of Smooth Regression Functions, Elia Liitiäinen, Francesco Corona, Amaury Lendasse Oct 2011

On The Curse Of Dimensionality In Supervised Learning Of Smooth Regression Functions, Elia Liitiäinen, Francesco Corona, Amaury Lendasse

Engineering Management and Systems Engineering Faculty Research & Creative Works

In This Paper, the Effect of Dimensionality on the Supervised Learning of Infinitely Differentiable Regression Functions is Analyzed. by Invoking the Van Trees Lower Bound, We Prove Lower Bounds on the Generalization Error with Respect to the Number of Samples and the Dimensionality of the Input Space Both in a Linear and Non-Linear Context. It is Shown that in Non-Linear Problems Without Prior Knowledge, the Curse of Dimensionality is a Serious Problem. at the Same Time, We Speculate Counter-Intuitively that Sometimes Supervised Learning Becomes Plausible in the Asymptotic Limit of Infinite Dimensionality. © 2011 Springer Science business Media, LLC.

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The Missouri Miner, September 29, 2011 Sep 2011

The Missouri Miner, September 29, 2011

The Missouri Miner Newspaper

No abstract provided.

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Promoting Distributed Accountability In The Cloud, Smitha Sundareswaran, Anna Squicciarini, Dan Lin, Shuo Huang Sep 2011

Promoting Distributed Accountability In The Cloud, Smitha Sundareswaran, Anna Squicciarini, Dan Lin, Shuo Huang

Computer Science Faculty Research & Creative Works

Cloud computing enables highly scalable services to be easily consumed over the Internet on an as-needed basis. a major feature of the cloud services is that users' data is usually processed remotely in unknown machines that users do not own or operate. While enjoying the convenience brought by this new emerging technology, users' fears of losing control of their own data (particularly financial and health data) can become a significant barrier to the wide adoption of cloud services. to address this problem, in this paper, we propose a novel highly decentralized information accountability framework to keep track of the actual …

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Roar: A Reference Ontology For Anatomical Relations, Alton B. Coalter, Jennifer L. Leopold Sep 2011

Roar: A Reference Ontology For Anatomical Relations, Alton B. Coalter, Jennifer L. Leopold

Computer Science Faculty Research & Creative Works

The ontology has become a useful model for organizing knowledge. This is particularly true in the field of biomedicine, where individual ontologies have been created for specific data domains ranging from genomics through species morphologies to human anatomical reference ontologies. Although specific sets of relationships have been proposed to improve the accuracy and consistency of such ontologies, there has been little to nothing proposed concerning the organization of those relationships. to help address this deficiency, herein we present a Reference Ontology of Anatomical Relations (ROAR). ROAR extends the concepts used in existing biomedical ontologies by defining and hierarchically organizing temporal, …

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A Comparison Of Finite State Classifier And Mahalanobis-Taguchi System For Multivariate Pattern Recognition In Skin Cancer Detection, Elizabeth A. Cudney, Steven M. Corns Sep 2011

A Comparison Of Finite State Classifier And Mahalanobis-Taguchi System For Multivariate Pattern Recognition In Skin Cancer Detection, Elizabeth A. Cudney, Steven M. Corns

Engineering Management and Systems Engineering Faculty Research & Creative Works

This project presents two methods for image classification for the detection of malignant melanoma: The Mahalanobis-Taguchi System and Finite State Classifiers. the Mahalanobis-Taguchi System is a diagnosis and predictive method for analyzing patterns in multivariate cases, while Finite State Classifiers are a state-based machine learning technique. the goal of this study is to compare the ability of the Mahalanobis-Taguchi System and a Finite State Classifier to discriminate using small data sets. We examine the discriminant ability as a function of data set size using publicly available skin lesion image data. While analysis of the data shows a high degree of …

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Cooperative Approaches Indicating To Capacity And Power Control For Ad Hoc Wireless Network, Liuju Wu, Maciej Jan Zawodniok Sep 2011

Cooperative Approaches Indicating To Capacity And Power Control For Ad Hoc Wireless Network, Liuju Wu, Maciej Jan Zawodniok

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, two integrated schemes for fair capacity allocation and power control for ad hoc wireless network are presented. the game theory approach is utilized to derive a collaborative update law. in the practical wireless network, a non-uniform distribution of nodes results in varying degree of interference among the network links or hops. Such varying mutual interference may lead to unfair allocation of bandwidth and result in network congestion. as a result, some links may become bottlenecks for the entire network. Hence, it is important to fairly allocate resources in the entire network. the proposed schemes aim to address …

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Theoretical Capacity Analysis For Multi-Hop Backscatter Communication Networks, Aditya V. Padaki, Maciej J. Zawodniok Sep 2011

Theoretical Capacity Analysis For Multi-Hop Backscatter Communication Networks, Aditya V. Padaki, Maciej J. Zawodniok

Electrical and Computer Engineering Faculty Research & Creative Works

Traditionally wireless sensor networks (WSNs) employ active RF communication where the RF signal has to be generated at nodes, thus consuming a significant amount of energy. in contrast, employment of passive communication, where nodes backscatter a modulated version of the incident RF signal, offers great advantages including reducing the energy cost of communication. Existing example includes a traditional RFID system with active reader communicating directly with passive tags. However, the proposed approach targets future, more advanced systems that support a generic backscatter communication. However, the inherent asymmetry in communication, reliance on external source of RF signal, and limited energy storage …

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Security Requirements Analysis, Specification, Prioritization And Policy Development In Cyber-Physical Systems, Kenneth Kofi Fletcher, Xiaoqing Liu Sep 2011

Security Requirements Analysis, Specification, Prioritization And Policy Development In Cyber-Physical Systems, Kenneth Kofi Fletcher, Xiaoqing Liu

Computer Science Faculty Research & Creative Works

In recent past, the security of cyber-physical systems (CPSs) has been the subject of major concern. One of the reasons is that CPSs are often applied to mission-critical processes. Also, the automation CPSs bring in managing physical processes, and the detail of information available to them for carrying out their tasks, make securing them a prime importance. Securing CPSs is a difficult task as systems are interconnected. in order to achieve a continuous secured CPS environment, there is the need for an integrated methodology to analyze, specify and prioritize security requirements and also to develop policies to meet them. First, …

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