Physical Sciences and Mathematics Commons^™

The Effect Of Temperature On The Dissolution Of Lignocellulose In Ionic Liquids, Samuel Morton, A. Placido, R. Pace Iii, A. Sharits, L. Morton

Samuel A Morton

No abstract provided.

Risk-Based Critical Infrastructure Protection Priorities For Emp And Solar Storms, George H. Baker Iii

George H Baker

The Commission to Assess the Threat to the United States from Electromagnetic Pulse Attack has provided a compelling case for protecting civilian infrastructure against the effects of EMP. As with protecting infrastructure against any hazard, it will be important to take a risk-based priority approach for EMP, recognizing that it is fiscally impracticable to protect everything. In this regard, EMP is particularly challenging in that it interferes with electrical and electronic data, control, transmission, and communication systems organic to nearly all infrastructures in a simultaneous and wide-scale manner. And, for nuclear burst altitudes of 100s of kilometers, the exposed geography …

Tuning The Wcet Of Embedded Applications, Wankang Zhao, Prasad Kulkarni, David Whalley, Christopher Healy, Frank Mueller, Gang-Ryung Uh

Gang-Ryung Uh

It is advantageous to not only calculate the WCET of an application, but to also perform transformations to reduce the WCET since an application with a lower WCET will be less likely to violate its timing constraints. In this paper we describe an environment consisting of an interactive compilation system and a timing analyzer, where a user can interactively tune the WCET of an application. After each optimization phase is applied, the timing analyzer is automatically invoked to calculate the WCET of the function being tuned. Thus, a user can easily gauge the progress of reducing the WCET. In addition, …

3d Visualization In Elementary Education Astronomy: Teaching Urban Second Graders About Sun, Earth, And The Moon, Zeynep Isik-Ercan, Beomjin Kim, Jeffrey Nowak

Zeynep Isik-Ercan

This research-in-progress hypothesizes that urban second graders can have an early understanding about the shape of Sun, Moon, and Earth, how day and night happens, and how Moon appears to change its shape by using three dimensional stereoscopic vision. The 3D stereoscopic vision system might be an effective way to teach subjects like astronomy that explains relationships among objects in space. Currently, Indiana state standards for science teaching do not suggest the teaching of these astronomical concepts explicitly before fourth grade. Yet, we expect our findings to indicate that students can learn these concepts earlier in their educational lives with …

Who's Who In Portfolio Management: An Overview Of Roles, Responsibilities And Practices, Aileen Koh

Aileen Koh

Portfolio management has been acknowledged by the project management community as a tool for optimizing the organizational returns from project investments by improving the alignment of projects with strategy and ensuring resource sufficiency. It aims to optimize the outcomes from project investment across a portfolio and it is also regarded as the governance method for selection and prioritization of projects or programs. Organizations that do not align their project portfolio with organizational strategies and governance will tend to increase the risks of running projects that are low priority initiatives. As a result, there will be critical resource shortages, and investments …

Diabetes Prediction In Pima Indians Using Ann And Statistical Techniques, Kuldeep Kumar, Ping Zhang

Kuldeep Kumar

Due to the fact that Pima Indian tribe has lived in the same location for an unmitigated number of years, a vast source of information of these people has been gained, which helps researchers for the study of diabetes and possible genetic factors of the disease. In this paper, we use Artificial Neural Network (ANN) and some statistical techniques for the prediction of diabetes. All the prediction models are evaluated with ROC curves.

How To Make Teaching Of Statistics More Effective In Business Schools?, Kuldeep Kumar

Kuldeep Kumar

Statistics is taught in almost all Business Schools as a core course and prerequisite to may advance economics, finance and accountancy courses. However, Statistics has to be taught in a different way in Business Schools as compared to how it is taught in their own statistics department. There should be more emphasis on applications in Business area rather than theory. There has been lot of interest in teaching of statistics in Business schools for a very long time, for example see Cox (1965), Moore (1976) and Love and Hildebrand (2002). This paper discusses author's experience of teaching statistics in an …

A Brief Review Of Recent Research Trends On Applications Of Computational And Statistical Techniques In Financial & Business Intelligence, Kuldeep Kumar, Sukanto Bhattacharya

Kuldeep Kumar

Artificial neural networks and statistical techniques like decision trees,discriminant analysis, logistic regression and survival analysis play a crucial role in Business Intelligence. These predictive analytical tools exploit patterns found in historical data to make predictions about future events. In this paper we have shown some recent developments of a few of these techniques in financial and business intelligence applications like fraud detection, bankruptcy prediction and credit rating scoring.

Modeling Of The Gastric Mucus Gel On The Gastric Epithelium, Frank Lynch, J.P. Keener

Frank Lynch

The mucus lining of the mammalian stomach has a thickness on the order of hundreds of microns. Across this mucus layer there is a large change in pH, from pH ∼ 2 inside the stomach to pH ∼ 7 at the intersection of the mucus lining with the stomach wall. The gel layer is thought to simultaneously protect the stomach lining from the acidity of the lumen while transporting gastric acid and other important digestive enzymes toward the lumen. The mechanisms by which these phenomena occur are not well understood. We use partial differential equations to model the protective features …

On Semiparametric Regression Via Wavelets, Leming Qu

Leming Qu

Semiparametric regression models have a linear part as in the linear regression and a nonlinear part similar to that in the nonparametric regression. The estimates in semiparametric regression models have been studied previously in traditional smoothing methods such as smoothing spline, kernel and piecewise polynomial smoothers. In this thesis, we apply the regularized wavelet estimators by penalizing the l1 norm of the wavelet coefficients of the nonparametric function. The regularization parameter is chosen by universal threshold or cross-validation. When there is only one explanatory variable in the linear part, we directly solve the linear coefficient. When the linear part has …

Preprocessing Strategy For Effective Modulo Scheduling On Multi-Issue Digital Signal Processors, Doosan Cho, Ravi Ayyagari, Gang-Ryung Uh, Yunheung Paek

Gang-Ryung Uh

To achieve high resource utilization for multi-issue Digital Signal Processors (DSPs), production compilers commonly include variants of the iterative modulo scheduling algorithm. However, excessive cyclic data dependences, which exist in communication and media processing loops, often prevent the modulo scheduler from achieving ideal loop initiation intervals. As a result, replicated functional units in multi-issue DSPs are frequently underutilized. In response to this resource underutilization problem, this paper describes a compiler preprocessing strategy that capitalizes on two techniques for effective modulo scheduling, referred to as cloning1 and cloning2. The core of the proposed techniques lies in the direct relaxation of cyclic …

Analyzing Dynamic Binary Instrumentation Overhead, Gang-Ryung Uh, Robert Cohn, Bharadwaj Yadavalli, Ramesh Peri, Ravi Ayyagari

Gang-Ryung Uh

Robust and powerful software instrumentation tools are essential for dynamic program analysis tasks such as profiling, performance evaluation, and bug detection. Dynamic binary instrumentation (DBI) is a general purpose technique that eases the development of program analysis tools by facilitating automatic low-level instrumentation. DBI-based program analysis can introduce high overhead and it is crucial for tool writers to minimize the cost. Analyzing the performance of instrumentation tools is challenging because most systems use a just-in-time compiler (JIT) to dynamically generate code. In this paper, we describe our method for analyzing the performance of instrumentation tools. The instrumented code is itself …

On Some Recent Applications Of The Coanda Effect, Caroline Lubert

Caroline P Lubert

No abstract provided.

Leveraging Fragmental Semantic Data To Enhance Services Discovery, Jian Wang, Jia Zhang, Patrick Hung, Zheng Li, Jianxiao Liu, Keqing He

Jia Zhang

No abstract provided.

Legal Education For Sustainability: A Report On Us Progress, John Dernbach

John C. Dernbach

This article is an overview of sustainability efforts in US law schools. It describes two sets of drivers for these efforts—inside and outside the legal profession. Drivers from within the legal profession include the American Bar Association as well as several state and local bar associations; law firms and other law organisations; and current and prospective law students. Drivers from outside the legal profession include clients, universities and colleges, nongovernmental organisations, and government. This article then describes what US law schools are now doing in the areas of curriculum, research, buildings and operations, community outreach and service, student life, and …

The Fall-Out From Emerging Technologies: On Matters Of Surveillance, Social Networks And Suicide, M.G. Michael, Katina Michael

Professor Katina Michael

No abstract provided.

Comments On Sample Design For Proposed Australian Asthma Survey, Robert Clark

Associate Professor Robert Graham Clark

The proposed design for the Australian Asthma Survey involves: a phone or face-toface screening interview with approximately 20,000 responding adults, followed by an in-depth interview and objective testing of all asthmatics and 1/10th of nonasthmatics in the screen. This report elaborates on sample design options based on the aims and approaches in the Australian Asthma Survey Proposal. The main requirement affecting the sample design is the need for a relatively small number of objective testing centres to be able to service the whole sample. This report considered a number of options where the sample was clustered in only 25 Statistical …

The Effect Of Using Household As A Sampling Unit, Robert Clark, David Steel

Associate Professor Robert Graham Clark

The effect of sampling people through households is considered. Results on design effects for two stage surveys are reviewed and applied to give design effects of household samples. The main factors that determine the design effect are identified for the designs in which one person, or all people, are selected from each selected household.Within household correlation is one factor.We show that the relationships between household size and the mean and variance within households are also important factors. Census and survey data are used to empirically compare the design effects for a range of estimators, variables and designs.

Sampling Within Households In Household Surveys, Robert Clark, David Steel

Associate Professor Robert Graham Clark

The number of people to select within selected households has significant consequences for the conduct and output of household surveys. The operational and data quality implications of this choice are carefully considered in many surveys, but the impact on statistical efficiency is not well understood. The usual approach is to select all people in each selected household, where operational and data quality concerns make this feasible. If not, one person is usually selected from each selected household. We find that this strategy is not always justified, and develop intermediate designs between these two extremes. Current practices were developed when household …

Preliminary Sample Design For The New Zealand Health Survey 2010, Robert Clark

Associate Professor Robert Graham Clark

This report describes the choice of the preliminary design for the New Zealand Health Survey, to be implemented from 2011. The survey will use computer assisted personal interviewing. The sample will be selected using a multi-stage area design. The selected sample size will be around 12,000 people per year. This is envisaged as sufficient to provide adequate precision for estimates of key prevalences for adults and children. The main objectives of the sample design are: • The design should support analysis of the survey by multiple users, which implies avoiding great variation in estimation weights. • Estimates for children and …

Accounting For The Uncertainty Of Information On Clustering In The Design Of A Clustered Sample, David Steel, Robert Clark

Associate Professor Robert Graham Clark

An important decision that has to be made in developing the design of a cluster or multi-stage sampling scheme is the number of units to select at each stage of selection. For a two-stage design we need to decide the number of units to select from each Primary Sampling Unit (PSU) in the sample. A common approach is to estimate the costs and the variance components associated with each stage of selection and determine an optimal design. This is usually done for estimates of the means or totals of one or a small number of variables. In practice the measure …

Dissolution And Analysis Of Lignin-Rich Biomass Feedstocks, Samuel Morton, A. Placido

Samuel A Morton

No abstract provided.

Incorporating Writing Into An Introductory Statistics Course Focused On Sports And Games, Joe Demaio, Amy Hillen

Joe DeMaio

Evaluation Of Hpc Architectures For Brams Numerical Weather Model, Eugenio Almeida, Michael Bauer, Alvaro Fazenda

Eugenio Almeida

No abstract provided.

Measuring The Persistence Length Of Mcf7 Cell Microtubules In Vitro, Mitra Shojania-Feizabadi, Kiryako Mutafopulos, Adam Behr

Mitra Shojania-Feizabadi

No abstract provided.

Emerging Forms Of Covert Surveillance Using Gps-Enabled Devices, Roba Abbas, Katina Michael, M.G. Michael, Anas Aloudat

Professor Katina Michael

This paper presents the real possibility that commercial mobile tracking and monitoring solutions will become widely adopted for the practice of non-traditional covert surveillance within a community setting, resulting in community members engaging in the covert observation of family, friends, or acquaintances. This paper investigates five stakeholder relationships using scenarios to demonstrate the potential socio-ethical implications that tracking and monitoring people will have on society at large. The five stakeholder types explored in this paper include: (i) husband-wife (partner-partner), (ii) parent-child, (iii) employer-employee, (iv) friend-friend, and (v) stranger-stranger. Mobile technologies such as mobile camera phones, global positioning system data loggers, …

Emerging Forms Of Covert Surveillance Using Gps-Enabled Devices, Roba Abbas, Katina Michael, M.G. Michael, Anas Aloudat

Professor Katina Michael

This paper presents the real possibility that commercial mobile tracking and monitoring solutions will become widely adopted for the practice of non-traditional covert surveillance within a community setting, resulting in community members engaging in the covert observation of family, friends, or acquaintances. This paper investigates five stakeholder relationships using scenarios to demonstrate the potential socio-ethical implications that tracking and monitoring people will have on society at large. The five stakeholder types explored in this paper include: (i) husband-wife (partner-partner), (ii) parent-child, (iii) employer-employee, (iv) friend-friend, and (v) stranger-stranger. Mobile technologies such as mobile camera phones, global positioning system data loggers, …

Experimental Manipulation Of Interfacial Molecular Assemblies: Using Macroscopic Processes To Create Defined Interfacial Structure And Properties, Mark Anderson

Mark R. Anderson

No abstract currently available.

Phase Separation Challenges For The Energy Industry, Samuel Morton

Samuel A Morton

No abstract provided.

Basic Queuing: Discrete Model Of Jmu’S Dining Halls, D. Macdonald, Caroline Lubert

Caroline P Lubert

No abstract provided.