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2012

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Secure Hierarchical Data Aggregation In Wireless Sensor Networks: Performance Evaluation And Analysis, Vimal Kumar, Sanjay Kumar Madria Dec 2012

Secure Hierarchical Data Aggregation In Wireless Sensor Networks: Performance Evaluation And Analysis, Vimal Kumar, Sanjay Kumar Madria

Computer Science Faculty Research & Creative Works

Secure data aggregation in wireless sensor networks has two contrasting objectives, i) Efficiently collecting and aggregating data and ii) Aggregating the data securely. Many schemes do not take into account the possibility of corrupt aggregators and allow the aggregator to decrypt data in hop-by-hop algorithms. on the other hand, using public key cryptography for providing end to end security is not energy efficient. in this paper we present and analyze the performance of the secure hierarchical data aggregation algorithm which uses an efficient public key cryptosystem (elliptic curve cryptography) to achieve end to end security. Unlike many other secure data …

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Crowdsourcing: Dynamic Data Management In Mobile P2p Networks, Sanjay Kumar Madria, Anirban Mondal Dec 2012

Crowdsourcing: Dynamic Data Management In Mobile P2p Networks, Sanjay Kumar Madria, Anirban Mondal

Computer Science Faculty Research & Creative Works

No abstract provided.

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Trust Management Of Encrypted Data Aggregation In A Sensor Network Environment, Nayot Poolsappasit, Michael Busby, Sanjay Kumar Madria Dec 2012

Trust Management Of Encrypted Data Aggregation In A Sensor Network Environment, Nayot Poolsappasit, Michael Busby, Sanjay Kumar Madria

Computer Science Faculty Research & Creative Works

Efficient power management is vital for increasing the life of sensor nodes in wireless sensor networks (WSN). Thus, techniques such as data aggregation have been widely used in WSN to preserve nodes' energy. Despite its appealing and powerful features, data aggregation processes require a high level of security. Ensuring accuracy with aggregating data can become an issue even due to single bit errors. Hence, many encryption techniques have been proposed to secure the data aggregation process. However, once a wireless sensor is physically compromised, the keys stored on the sensor are exposed, thus rendering the cryptography useless. Moreover, most cryptographic …

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Parametrizing Finite Frames And Optimal Frame Completions, Miriam J. Poteet Dec 2012

Parametrizing Finite Frames And Optimal Frame Completions, Miriam J. Poteet

Theses and Dissertations

Frames are used in many signal processing applications. We consider the problem of constructing every frame whose frame operator has a given spectrum and whose vectors have prescribed lengths. For a given spectrum and set of lengths, we know when such a frame exists by the Schur-Horn Theorem; it exists if and only if its spectrum majorizes its squared lengths. We provide a more constructive proof of Horn's original result. This proof is based on a new method for constructing any and all frames whose frame operator has a prescribed spectrum and whose vectors have prescribed lengths. Constructing all such …

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The Litigation Finance Contract, Maya Steinitz Dec 2012

The Litigation Finance Contract, Maya Steinitz

William & Mary Law Review

Litigation funding—for-profit, nonrecourse funding of a litigation by a nonparty—is a new and rapidly developing industry. It has been described as one of the “biggest and most influential trends in civil justice” today by RAND, the New York Times, and others. Despite the importance and growth of the industry, there is a complete absence of information about or discussion of litigation finance contracting, even though all the promises and pitfalls of litigation funding stem from the relationships those contracts establish and organize. Further, the literature and case law pertaining to litigation funding have evolved from an analogy between litigation funding …

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Painting And Poetry: Third Graders' Free-Form Poems Inspired By Their Paintings, Emilie L. Sears Dec 2012

Painting And Poetry: Third Graders' Free-Form Poems Inspired By Their Paintings, Emilie L. Sears

Journal of Inquiry and Action in Education

It is important to find the means by which struggling writers can find success in the English Language Arts. For students struggling with reading and writing, the visual arts may be a way of accessing and expressing their ideas and ultimately opening up a world of creative possibilities. This article explores drawing and painting as a pre-writing strategy. The article follows 6 third grade students as the participate in a workshop designed to faciliate poetry writing based on the students' artwork.

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Development Of A Smart Insole System For Real-Time Detection Of Temporal Gait Parameters And Related Deviations In Unilateral Lower-Limb Amputees, Monica Stalin Dec 2012

Development Of A Smart Insole System For Real-Time Detection Of Temporal Gait Parameters And Related Deviations In Unilateral Lower-Limb Amputees, Monica Stalin

Open Access Theses

Gait is a complex cycle with both between and within limb variability. It should be studied carefully using justifiable and accurate measures. Unilateral lower limb amputees often favor and stress their intact limb during most of the functional activities. This can lead to secondary comorbidities or complications like degenerative arthritis, back pain that may affect the mobility and quality of life. Symmetry is an issue in the gait of amputees because of the unnatural asymmetry imposed on the biomechanical system by the prosthesis. Current gait assessment techniques monitor the symmetry of macroscopic gait parameters like stance and swing period durations. …

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We Are...Marshall, December 12, 2012, Office Of Marshall University Communications Dec 2012

We Are...Marshall, December 12, 2012, Office Of Marshall University Communications

We Are ... Marshall: the Newsletter for Marshall University 1999-2023

No abstract provided.

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Seasonal Dimorphism In The Horny Bills Of Sparrows, Russell Greenberg, Matthew Etterson, Raymond M. Danner Dec 2012

Seasonal Dimorphism In The Horny Bills Of Sparrows, Russell Greenberg, Matthew Etterson, Raymond M. Danner

United States Environmental Protection Agency: Publications

Bill size is often viewed as a species-specific adaptation for feeding, but it sometimes varies between sexes, suggesting that sexual selection or intersexual competition may also be important. Hypotheses to explain sexual dimorphism in avian bill size include divergence in feeding niche or thermoregulatory demands, intrasexual selection based on increased competition among males, or female preference. Birds also show seasonal changes in bill size due to shifts in the balance between growth rate and wear, which may be due to diet or endogenous rhythms in growth. Insight into the function of dimorphism can be gained using the novel approach of …

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Murray Ledger And Times, December 12, 2012, Murray Ledger And Times Dec 2012

Murray Ledger And Times, December 12, 2012, Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

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Hybrid Solvers For The Boolean Satisfiability Problem: An Exploration, Nicole Nelson Dec 2012

Hybrid Solvers For The Boolean Satisfiability Problem: An Exploration, Nicole Nelson

Theses and Dissertations

The Boolean Satisfiability problem (SAT) is one of the most extensively researched NP-complete problems in Computer Science. This thesis focuses on the design of feasible solvers for this problem. A SAT problem instance is a formula in propositional logic. A SAT solver attempts to find a solution for the formula. Our research focuses on a newer solver paradigm, hybrid solvers, where two solvers are combined in order to gain the benefits from both solvers in the search for a solution. Our hybrid solver, AmbSAT, combines two well-known solvers: the systematic Davis-Putnam-Logemann-Loveland solver (DPLL) and the stochastic WalkSAT solver. AmbSAT's design …

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Hotline Press Newspaper- December 2012 Vol 29 No 30, Hotline Press Newspaper Dec 2012

Hotline Press Newspaper- December 2012 Vol 29 No 30, Hotline Press Newspaper

Hotline Press Newspaper 2012

No abstract provided.

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Analytical Representations For Frequency Dependences Of Microwave Permeability, Konstantin N. Rozanov, Marina Koledintseva Dec 2012

Analytical Representations For Frequency Dependences Of Microwave Permeability, Konstantin N. Rozanov, Marina Koledintseva

Electrical and Computer Engineering Faculty Research & Creative Works

Electromagnetic materials applied to solve various EMC and EMI problems require adequate analytical description of their RF and microwave material parameters. This is necessary for numerical optimization of wideband electromagnetic performance of devices incorporating these materials. The paper discusses the shape of frequency dependences of microwave permeability in homogeneous materials and composites. The Lorentzian frequency dispersion law is shown to allow for rather accurate description of all types of magnetic loss peaks, including those related to the ferromagnetic resonance and the effect of eddy currents. To model wideband electromagnetic performance of composites, mixing laws are typically used. The problem is …

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Whalesong 2012-12-12, N/A N/A Dec 2012

Whalesong 2012-12-12, N/A N/A

Whalesong

No abstract provided.

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Information Theoretic Approaches Towards Regulatory Network Inference, Vijender Chaitankar Dec 2012

Information Theoretic Approaches Towards Regulatory Network Inference, Vijender Chaitankar

Theses and Dissertations

In spite of many efforts in the past, inference or reverse engineering of regulatory networks from microarray data remains an unsolved problem in the area of systems biology. Such regulatory networks play a critical role in cellular function and organization and are of interest in the study of a variety of disease areas and ecotoxicology to name a few. This dissertation proposes information theoretic methods/algorithms for inferring regulatory networks from microarray data. Most of the algorithms proposed in this dissertation can be implemented both on time series and multifactorial microarray data sets. The work proposed here infers regulatory networks considering …

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Investigation Of Low-Stress Silicon Nitride As A Replacement Material For Beryllium X-Ray Windows, David B. Brough Dec 2012

Investigation Of Low-Stress Silicon Nitride As A Replacement Material For Beryllium X-Ray Windows, David B. Brough

Theses and Dissertations

The material properties of low stress silicon nitride make it a possible replacement material for beryllium in X-ray windows. In this study, X-ray windows made of LPCVD deposited low stress silicon nitride are fabricated and characterized. The Young's modulus of the LPCVD low stress silicon nitride are characterized and found to be 226±23 GPa. The residual stress is characterized using two different methods and is found to be 127±25 MPa and 141±0.28 MPa. Two support structure geometries for the low stress silicon nitride X-ray windows are used. X-ray windows with thicknesses of 100 nm and 200 nm are suspended on …

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The Bg News December 12, 2012, Bowling Green State University Dec 2012

The Bg News December 12, 2012, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. December 12, 2012. Volume 103-Issue 50.

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Profit, Productivity And Price Performance Changes In The English And Welsh Water And Sewerage Companies, Alexandros Maziotis, David S. Saal, Emmanuel Thanassoulis Dec 2012

Profit, Productivity And Price Performance Changes In The English And Welsh Water And Sewerage Companies, Alexandros Maziotis, David S. Saal, Emmanuel Thanassoulis

Fondazione Eni Enrico Mattei Working Papers

The purpose of this paper is to assess the impact of regulation in the financial performance of the Water and Sewerage companies (WaSCs) in England and Wales. We apply a panel index approach across WaSCs over time to decompose unit-specific (temporal) index number based profitability growth as a function of the profitability, productivity and price performance growth achieved by benchmark firms, and the catch-up to the benchmark firm achieved by less productive firms. The results indicated that the steady decline in average price performance, gains in productivity and relatively stable economic profitability after 2000, suggest that Ofwat is now more …

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A Regionalized National Universal Kriging Model Using Partial Least Squares Regression For Estimating Annual Pm2.5 Concentrations In Epidemiology, Paul D. Sampson, Mark Richards, Adam A. Szpiro, Silas Bergen, Lianne Sheppard, Timothy V. Larson, Joel Kaufman Dec 2012

A Regionalized National Universal Kriging Model Using Partial Least Squares Regression For Estimating Annual Pm2.5 Concentrations In Epidemiology, Paul D. Sampson, Mark Richards, Adam A. Szpiro, Silas Bergen, Lianne Sheppard, Timothy V. Larson, Joel Kaufman

UW Biostatistics Working Paper Series

Many cohort studies in environmental epidemiology require accurate modeling and prediction of fine scale spatial variation in ambient air quality across the U.S. This modeling requires the use of small spatial scale geographic or “land use” regression covariates and some degree of spatial smoothing. Furthermore, the details of the prediction of air quality by land use regression and the spatial variation in ambient air quality not explained by this regression should be allowed to vary across the continent due to the large scale heterogeneity in topography, climate, and sources of air pollution. This paper introduces a regionalized national universal kriging …

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The Carousel Value-Added Tax Fraud In The European Emission Trading System, Maria Berrittella, Filippo Alessandro Cimino Dec 2012

The Carousel Value-Added Tax Fraud In The European Emission Trading System, Maria Berrittella, Filippo Alessandro Cimino

Fondazione Eni Enrico Mattei Working Papers

In this article, we analyse the effects of the carousel value-added tax fraud in the European carbon market and the legislative measures that the EU Member States could adopt to deal with this phenomena. We use a computable general equilibrium model, called GTAP-E and the version 6 of the GTAP database to evaluate the economy-wide and terms of trade effects. The policy test has been designed for five European countries: Belgium, France, Germany, Italy, Netherlands and the United Kingdom. According to our findings, the legislative measures aimed to remove the VAT fraud in the European Emission Trading System will have …

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A Guide To Documenting Software Design For Maximum Software Portability For Software Defined Radios, Joseph Snively Dec 2012

A Guide To Documenting Software Design For Maximum Software Portability For Software Defined Radios, Joseph Snively

Regis University Student Publications (comprehensive collection)

The use of software defined communications systems is growing incredibly fast. The field of software engineering as a discipline has not adequately addressed the subject of software portability which makes large and costly software development efforts less ready to port to future platforms. By understanding the causes of portability problems, they can either be avoided altogether in development or very well documented so that they are easier to overcome in future efforts. Literature, case studies, and surveys are used to collect opinions and information about large software programs where portability is a desirable characteristic in order to best establish the …

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U.S. Drought Monitor, December 11, 2012, Rich Tinker Dec 2012

U.S. Drought Monitor, December 11, 2012, Rich Tinker

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for December 11, 2012 (12/11/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.

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2012 Fall Engr333 Project Final Report, 2012 Fall Engr333 Dec 2012

2012 Fall Engr333 Project Final Report, 2012 Fall Engr333

ENGR 333

Calvin College is considering an addition to the West Wing of the Spoelhof Center to provide additional space for the art and business programs. The construction of this new addition provides the opportunity to investigate the feasibility of installing new, sustainable technology. This semester the students of Engineering 333 were presented with the following challenge: “What it will take for Calvin College to install a geothermal HVAC system for the West Wing?” A geothermal HVAC (heating, ventilation, and air conditioning) system utilizes the relatively constant temperature of the earth to provide heating during winter and cooling during summer. Geothermal HVAC …

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Family Science: An Ethnographic Case Study Of The Ordinary Science And Literacy Experiences Of One Family, Glenda Margaret Mccarty Dec 2012

Family Science: An Ethnographic Case Study Of The Ordinary Science And Literacy Experiences Of One Family, Glenda Margaret Mccarty

Dissertations

Despite the copious research available on science learning, little is known about ways in which the public engages in free-choice science learning and even fewer studies have focused on how families engage in science to learn about the world around them. The same was true about studies of literacy development in the home until the 1980s when researchers (e.g. Bissex, 1980; Heath, 1983; Taylor, 1983) began documenting the literacy happenings and practices of young children in natural settings. Findings from intensive emergent literacy research studies have challenged traditional approaches to the teaching and learning of literacy, especially drawing attention to …

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Reliability Techniques For Data Communication And Storage In Fpga-Based Circuits, Yubo Li Dec 2012

Reliability Techniques For Data Communication And Storage In Fpga-Based Circuits, Yubo Li

Theses and Dissertations

This dissertation studies the effects of radiation-induced single-event upsets (SEUs) on field-programmable gate array(FPGA)-based circuits. It analyzes and quantifies a special case in data communication, that is, the synchronization issue of signals when they are sent across clock domains in triple modular redundancy (TMR) circuits with the presence of SEUs. After demonstrating that synchronizing errors cannot be eliminated in such case, this dissertation continues to present novel synchronizer designs that can guarantee reliable synchronization of triplicated signals. Fault injection tests then show that the proposed synchronizers provide between 6 and 10 orders of magnitude longer mean time to failure (MTTF) …

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Electronic Device, Display And Touch-Sensitive User Interface (Dec 2012), Michael E. Miller, Jerald J. Muszak, Michael J. Telek Dec 2012

Electronic Device, Display And Touch-Sensitive User Interface (Dec 2012), Michael E. Miller, Jerald J. Muszak, Michael J. Telek

AFIT Patents

Display devices and methods for operating the same are provided. In one embodiment, the display device has an electronic display having an active area for presenting visual content; a housing holding the electronic display and having an opening allowing a person to view a first portion of the active area; and a bezel about the opening, the bezel covering a second portion of the active area and providing a window through which at least a part of the second portion can be viewed. A sensor system senses when a person is close to touching the bezel or when a person …

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Cartesian Human Morpho-Informatic System, Don R. Hilbelink Dec 2012

Cartesian Human Morpho-Informatic System, Don R. Hilbelink

USF Patents

The present invention is a three dimensional Cartesian coordinate system for the human body, having three perpendicular and intersecting planes. The present invention is based upon the use of the three cardinal planes, in the universally recognized orientations. The cardinal planes in accordance with the present invention are: Sagittal: midsagittal plane, Transverse: upper-most extent of the iliac crests, and Coronal: anterior-most aspect of the vertebral canal. The point at which these planes intersect defines the 0,0,0 location in the human body.

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An Evaluation Of Electronic Annotated Readers For First Graders In Chinese Dual Immersion To Improve Reading Comprehension And Character Recognition, James H. Cloe Jr. Dec 2012

An Evaluation Of Electronic Annotated Readers For First Graders In Chinese Dual Immersion To Improve Reading Comprehension And Character Recognition, James H. Cloe Jr.

Theses and Dissertations

This study is an evaluation of online annotated readers developed for first grade students enrolled in Chinese immersion. The electronic readers were created to provide additional input to immersion students, who had little time in class for Chinese character reinforcement. The students accessed online readers from their homes and took assessments before and after each reader to test for improved character comprehension. In addition, students were divided into treatment and control groups. The treatment group had annotated electronic readers with audio and games. Conversely, the control group did not have annotations but audio was included. Results demonstrate a significant difference …

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The Effect Of The Semantic Depth Of Spanish Verbs On Processing Demands Of Filler-Gap Relationships In Noun Clauses, Ashlee Marie Jessen Dec 2012

The Effect Of The Semantic Depth Of Spanish Verbs On Processing Demands Of Filler-Gap Relationships In Noun Clauses, Ashlee Marie Jessen

Theses and Dissertations

This study explored the relationship between syntax and semantics in an effort to provide evidence against a strict theory of the Autonomy of Syntax. The evidence was provided by an acceptability survey given to 20 native, adult Mexicans who ranked both declarative and wh-questions which manifested a filler-gap relationship where the gap was located in an embedded noun clause. The main verbs were controlled for semantic depth by being ranked within verbal categories according to external evidence of markedness or semantic depth. The primary hypothesis was that semantically deeper verbs would add to the already increased strain on working memory …

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Designing Pre-Tests For An Intermediate-Level University Spanish Course, Carl D. Gutke Dec 2012

Designing Pre-Tests For An Intermediate-Level University Spanish Course, Carl D. Gutke

Theses and Dissertations

Testing, at times, can be a complicated matter. It takes a lot of time, precision and trial and error to adequately create a valid and reliable test. When creating a test, we should be aware of the impact that it is going to have on our teaching and whether it will be positive or negative. The goal of this project was to create four good intermediate Spanish diagnostic pre-tests that could be taken at the Brigham Young University Humanities Computer Testing Laboratory. The purpose of these pre-tests was to ascertain the grammatical strengths and weaknesses of our Fall Semester 2012 …

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