Digital Commons Network^™

Information Flow Security In Cyber-Physical Systems, Thoshitha Gamage, Ravi Akella, Thomas Roth, Bruce Mcmillin

Computer Science Faculty Research & Creative Works

Preserving the confidentiality of sensitive internal actions is a unique challenge in Cyber-Physical Systems (CPSs) due to the inherent external observability of such systems and the tight coupling between their cyber and physical domains. the far-reaching objective of this work is to develop a science of self-obfuscating systems based on the composition of simple building blocks. a model of Nondeducibility composes the building blocks under information flow security properties. to this end, this paper proposes fundamental theories on external observability for basic regular networks and the concept of "event compensation". Copyright © 2011 ACM.

An Effective Approach For Topicspecific Opinion Summarization, Binyang Li, Lanjun Zhou, Wei Gao, Kam-Fai Wong, Zhongyu Wei

Research Collection School Of Computing and Information Systems

Topic-specific opinion summarization (TOS) plays an important role in helping users digest online opinions, which targets to extract a summary of opinion expressions specified by a query, i.e. topic-specific opinionated information (TOI). A fundamental problem in TOS is how to effectively represent the TOI of an opinion so that salient opinions can be summarized to meet user’s preference. Existing approaches for TOS are either limited by the mismatch between topic-specific information and its corresponding opinionated information or lack of ability to measure opinionated information associated with different topics, which in turn affect the performance seriously. In this paper, we represent …

Automated Removal Of Cross Site Scripting Vulnerabilities In Web Applications, Lwin Khin Shar, Hee Beng Kuan Tan

Research Collection School Of Computing and Information Systems

Context: Cross site scripting (XSS) vulnerability is among the top web application vulnerabilities according to recent surveys. This vulnerability occurs when a web application uses inputs received from users in web pages without properly checking them. This allows an attacker to inject malicious scripts in web pages via such inputs such that the scripts perform malicious actions when a client visits the exploited web pages. Such an attack may cause serious security violations such as account hijacking and cookie theft. Current approaches to mitigate this problem mainly focus on effective detection of XSS vulnerabilities in the programs or prevention of …

Early Detection And Control Of Potential Pandemics., Shengpeng Jin

Electronic Theses and Dissertations

Early information is crucial for policy makers and public health officials responsible for protecting the public from the virulent spread of contagious diseases. Current indicators of the spread of contagious outbreaks lag behind the actual spread of the epidemic, leaving no time for a planned response. The studies of Christakis et al. in 2010 have shown that social networks can provide more timely information for prediction. Our focus, however, is on the effective control of the spread of contagious outbreaks in their early stages. We do this by defining a more effective way to chart the spread of contagious outbreaks, …

Widespread Regulation Of Mirna Biogenesis At The Dicer Step By The Cold-Inducible Rna-Binding Protein, Rbm3, Julie Pilotte, Esther E. Dupont-Versteegden, Peter W. Vanderklish

Physical Therapy Faculty Publications

MicroRNAs (miRNAs) play critical roles in diverse cellular events through their effects on translation. Emerging data suggest that modulation of miRNA biogenesis at post-transcriptional steps by RNA-binding proteins is a key point of regulatory control over the expression of some miRNAs and the cellular processes they influence. However, the extent and conditions under which the miRNA pathway is amenable to regulation at posttranscriptional steps are poorly understood. Here we show that RBM3, a cold-inducible, developmentally regulated RNA-binding protein and putative protooncogene, is an essential regulator of miRNA biogenesis. Utilizing miRNA array, Northern blot, and PCR methods, we observed that over …

The Singular Perturbation In The Analysis Of Mode I Fracture Based Upon A New Multiscale Theory, Kai-Bin Fu

Applications and Applied Mathematics: An International Journal (AAM)

A theory of fracture is presented that is based upon an extension of continuum mechanics to the nanoscale fracture through the incorporation of long-range intermolecular forces which correct bulk material descriptions near interfaces. To be consistent with the literature, constant surface energies are assigned to interfaces. In the analysis of mode I fracture for quasi-brittle material, it is observed that the incorporation of these long-range intermolecular forces predicts sharp fracture tip rather than blunt and avoids stress singularity. The details of the singular perturbation employed in this analysis are also presented.

The Power Series Solution Of Fingering Phenomenon Arising In Fluid Flow Through Homogeneous Porous Media, Kinjal Patel, M. N. Mehta, Twinkle R. Patel

Applications and Applied Mathematics: An International Journal (AAM)

The present paper deals with the approximate solution of the fingering phenomenon occurring when water is pushed into oil in homogeneous porous media with capillary mean pressure. The phenomenon is formulated mathematically as a water-oil double phase flow problem. The solution of the nonlinear partial differential equation of fingering phenomenon has been discussed in terms of the power series using appropriate boundary conditions for any timeT>0 . The solution is in ascending power series which represents saturation of injected fluid in fingering phenomenon & its graphical and numerical presentation is given in MATLAB coding.

Stability Of Stratified Couple-Stress Dusty Fluid In The Presence Of Magnetic Field Through Porous Medium, Vivek Kumar

Applications and Applied Mathematics: An International Journal (AAM)

The combined effect of magnetic field and dust particles on the stability of a stratified couplestress fluid through a porous medium is considered. For stable stratification, the system is found to be stable for disturbances of all wave numbers. The magnetic field succeeds in stabilizing the potentially unstable stratifications for a certain wave-number range which were unstable in the absence of the magnetic field. Discussions of oscillatory and non-oscillatory modes are also made.

Robust 𝒍𝟏 And 𝒍∞ Solutions Of Linear Inequalities, Maziar Salahi

Applications and Applied Mathematics: An International Journal (AAM)

Infeasible linear inequalities appear in many disciplines. In this paper we investigate the 𝑙₁ and 𝑙_∞ solutions of such systems in the presence of uncertainties in the problem data. We give equivalent linear programming formulations for the robust problems. Finally, several illustrative numerical examples using the cvx software package are solved showing the importance of the robust model in the presence of uncertainties in the problem data.

A New Algorithm For Solving Shortest Path Problem On A Network With Imprecise Edge Weight, Amit Kumar, Manjot Kumar

Applications and Applied Mathematics: An International Journal (AAM)

Nayeem and Pal (Shortest path problem on a network with imprecise edge weight, Fuzzy Optimization and Decision Making 4, 293-312, 2005) proposed a new algorithm for solving shortest path problem on a network with imprecise edge weight. In this paper the shortcomings of the existing algorithm, (Nayeem and Pal, 2005) are pointed out and to overcome these shortcomings a new algorithm is proposed. To show the advantages of the proposed algorithm over existing algorithm the numerical examples presented in (Nayeem and Pal, 2005) are solved using the proposed algorithm and obtained results are discussed.

In Search Of Shell Space: A Look At A Unique Sea Turtle Nesting Behavior, Mia Dawson

The Synapse: Intercollegiate science magazine

No abstract provided.

Issue 0

The Synapse: Intercollegiate science magazine

No abstract provided.

Aircraft Longitudinal Control Experiment, Dustin Schaff

Aerospace Engineering

This paper describes the design, fabrication, and analysis of an experiment that demonstrates the stability and control system characteristics of an aircraft constrained at the center of gravity in an air flow field. Given a set of basic requirements, the physical system (including the airframe, wings, tail, and mounted ball bearing) was designed, modeled, and manufactured. With the aircraft placed in front of a fan and allowed to rotate freely with the ball bearing, an angular rate sensor and servo motor to the deflect the elevator may be connected to any computer using an analog/digital Data Acquisition (DAQ) device to …

The Public Promise Of Scriptural Reasoning: An Evaluation Of Nicholas Adams' Habermas And Theology, Tommy Givens

Journal of Scriptural Reasoning

No abstract provided.

Effects Of Globalization On The Gas Engine Manufacturing And Parts Industry In Indiana As Experienced By Those Working In This Sector, Patricia Polastri

All-Inclusive List of Electronic Theses and Dissertations

Globalization has often been perceived as the culprit in the decline of employment in several manufacturing industries in the United States. The purpose of this research was to investigate how globalization affected the gas engine manufacturing and parts industry in Indiana during the period of 1998 – 2008, in order to assess the perception of industry professionals as to the characteristics that could, or have, led to globalization through offshoring and outsourcing. Additionally factors for the employment decline experienced in this industry were identified and assessed. For this study an anonymous online survey was conducted targeting individuals directly associated with …

But Does It Work? The Impact Of Social Media Use On Interpretive Outcomes And Place Attachments At San Francisco Bay Area Parks, Eric Knackmuhs

Electronic Theses and Dissertations

Many parks are now using social media sites to connect with visitors but little is known about how effective these efforts have been. This study examined the influence of social media use on interpretive outcomes and place attachment. Visitors to four parks in the San Francisco Bay Area were surveyed twice, once as they exited the park (n = 529) and a second time via email (n = 216) six to ten weeks after visiting. In both surveys, respondents were asked how they use social media to experience parks and to what extent they experienced interpretive outcomes (intellectual and emotional …

Bottom Topography Mapping Via Nonlinear Data Assimilation, Edward D. Zaron, Marie-Aude Pradal, Patrick D. Miller, Alan F. Blumberg, Nickitas Georgas, Wei Li, Julia Muccino Cornuelle

Civil and Environmental Engineering Faculty Publications and Presentations

A variational data assimilation method is described for bottom topography mapping in rivers and estuaries using remotely sensed observations of water surface currents. The velocity field and bottom topography are related by the vertically integrated momentum and continuity equations, leading to a nonlinear inverse problem for bottom topography, which is solved using a Picard iteration strategy combined with a nonlinear line search. An illustration of the method is shown for Haverstraw Bay, in the Hudson River, where the known bottom topography is well reconstructed. Once the topography has been estimated, currents and water levels may be forecast. The method makes …

Raps Sheet, December 2011, Retirement Association Of Portland State

RAPS Sheet: Monthly Newsletter

No abstract provided.

The Theory And Practice Of Genetically Engineered Crops And Agricultural Sustainability, David E. Ervin, Leland L. Glenna, Raymond Adelard Jussaume

Institute for Sustainable Solutions Publications and Presentations

The development of genetically engineered (GE) crops has focused predominantly on enhancing conventional pest control approaches. Scientific assessments show that these GE crops generally deliver significant economic and some environmental benefits over their conventional crop alternatives. However, emerging evidence indicates that current GE crops will not foster sustainable cropping systems unless the negative environmental and social feedback effects are properly addressed. Moreover, GE crop innovations that promote more sustainable agricultural systems will receive underinvestment by seed and chemical companies that must understandably focus on private returns for major crops. Opportunities to promote crops that convey multi-faceted benefits for the environment …

Effect Of Size Reduction Parameters In Pharmaceutical Manufacturing Process, Brian Breneman

Biomedical Engineering

Within pharmaceutical manufacturing, size reduction is one of the most extensively used and vital unit operations. Size reduction in tablet production is achieved primarily through milling procedures, which allows for attaining product uniformity, optimizing product solubility, and improving bioavailability. Additionally, powders with a narrow range of size distribution can obviate problems in downstream processing as pertains to blending, compression, and coating as well as improve drug performance¹. The purpose this study was to characterize the effect of various size reduction parameters as a result of the pharmaceutical milling process on a lactose wet granulation formulation and chemically active …

Overview Of Healthcare Quality: Hospitals And Public Health Trends: Rural Vs. Urban, Sandy S. Lee

Social Sciences

No abstract provided.

Poly Press Association: Unifying A Department Through The Development Of A Student Organization, Jessica Tam

Journalism

The Poly Press Association is designed to help students who are enrolled in the journalism department at California Polytechnic State University in San Luis Obispo, California as they go through their academic years in the university. The goal of this project is to unite all three of the department’s concentrations – Public Relations, News Editorial, and Broadcasting – to create a more holistic environment. With the help of faculty intuition and student opinion, this student organization is centered on helping and building a stronger department.

Notes On Contributors = 作者簡介

Journal of Modern Literature in Chinese 現代中文文學學報

No abstract provided.

Studies On Power Hop Using A Nonlinear Model Of An Agricultural Tractor, Adam B. Flaugh

Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research

Power hop is an unstable dynamic phenomenon that is observed on agricultural tractors operating at field working speeds under typical draft loads. This dynamic instability can be identified as a bounce motion preceded by an increasing oscillation in either the pitch or bounce modes. A definite and comprehensive correction or prevention strategy for the control of power hop does not exist. In this work a linear and a nonlinear model of an agricultural tractor were developed. The method of multiple time scales has been employed in the analysis of the nonlinear model. Numerical results have been obtained using Mathematica to …

The Historical Industrial Development, Regional Economic Analysis, And Household Livelihood Strategies Of A Rural Pennsylvania Community: A Case Study, Amanda. L. Krugh

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation research focuses on the case study area of Mount Union, Huntingdon County, Pennsylvania. This three part dissertation research project includes analysis of the historical industrial development, current economy, and household livelihood strategies of this rural community. The regulation approach is utilized in this paper to analyze the historic economic development associated with manufacturing, specifically brick manufacturing, in the case study area. Quantitative techniques are used to indentify the economic structure of a region and used to examine the strengths and weaknesses of the Huntingdon County economy. Qualitative methods are utlized to examine what economic and social adjustments and …

Hybrid Organic/Inorganic Flexible Structures: Low Temperature Deposition Of Silver Conductive Tracks On Flexible Substrates, Phillip R. Mcelfresh

Graduate Theses, Dissertations, and Problem Reports (ETD)

The ability to atmospherically deposit conductive patterns on flexible polymeric substrates has recently gained considerable interest as an alternative to vacuum processes. This is because it can potentially lead to highly efficient and reliable transparent electrode components that can be used in lightweight and flexible optoelectronic devices such as sensors, solar panels, touch screens, displays and solid state lighting. Common approaches to fabricate transparent conductors include the physical deposition of transparent conductive oxide (TCO) films on polymer substrates. This is leading to mechanically brittle components which are fabricated using costly vacuum coating equipment. It is therefore important to research an …

Property's Morale, Nestor M. Davidson

Michigan Law Review

A foundational argument long invoked to justify stable property rights is that property law must protect settled expectations. Respect for expectations unites otherwise disparate strands of property theory focused on ex ante incentives, individual identity, and community. It also privileges resistance to legal transitions that transgress reliance interests. When changes in law unsettle expectations, such changes are thought to generate disincentives that Frank Michelman famously labeled "demoralization costs." Although rarely approached in these terms, arguments for legal certainty reflect underlying psychological assumptions about how people contemplate property rights when choosing whether and how to work, invest, create, bolster identity, join …

Characterizing Performance Of A Pem Fuel Cell For A Cmet Balloon, Denise A. Mckahn, Whitney Mcmackin

Engineering: Faculty Publications

We present the design of a multi-cell, low temperature PEM fuel cell for controlled meteorological balloons. Critical system design parameters that distinguish this application are the lack of reactant humidification and cooling due to the low power production, high required power mass-density and relatively short flight durations. The cell is supplied with a pressure regulated and dead ended anode, and flow controlled cathode at variable air stoichiometry. The cell is not heated and allowed to operate with unregulated temperature. Our prototype cell was capable of achieving power densities of 43 mW/cm2/cell or 5.4 mW/g. The cell polarization performance of large …

The Relationship Between Special Education Teachers' Perceptions Of Principal Leadership Behaviors And The Achievement Of Students With Disabilities, Margaret Elizabeth Constantino

Dissertations

The purpose of this study is to examine special education teacher perceptions of principals’ instructional leadership behaviors and students’ academic achievement on the Georgia Comprehensive Criterion-Referenced Tests. The researcher sought to determine if a relationship between specific instructional leadership practices in the areas of setting direction, influencing others, and redesigning the organization as performed by the principal and as perceived by their teachers is related to the achievement of special education subgroups in English/Language Arts and Mathematics. Special educators from elementary schools, identified by the principals, were surveyed to measure the extent to which they perceived their principal exhibited specific …

Does Online Course Design Encourage Attrition? Assessing Usability Factors In Learning Management Systems, Lisa Theresa Richardson

Dissertations

Online coursework offers many college students flexibility and increased earning potential that they otherwise may not have due to personal or professional responsibilities and restrictions. Unfortunately, for students with disadvantaged technology backgrounds or disabilities limited accessibility compromises these opportunities for students who already face significant challenges to the completion of their post-secondary education. In the same manner that universal design of physical spaces increases usability of buildings and other facilities for all patrons, universal design of web-based courses could improve retention of course content for all learners.

In a case study based on cognitive load theory and constructivist pedagogy, the …