Digital Commons Network^™

Android Or Ios For Better Privacy Protection?, Jin Han, Qiang Yan, Debin Gao, Jianying Zhou, Huijie Robert Deng

Research Collection School Of Computing and Information Systems

With the rapid growth of the mobile market, security of mobile platforms is receiving increasing attention from both research community as well as the public. In this paper, we make the first attempt to establish a baseline for security comparison between the two most popular mobile platforms. We investigate applications that run on both Android and iOS and examine the difference in the usage of their security sensitive APIs (SS-APIs). Our analysis over 2,600 applications shows that iOS applications consistently access more SS-APIs than their counterparts on Android. The additional privileges gained on iOS are often associated with accessing private …

Extracting Interest Tags From Twitter User Biographies, Ying Ding, Jing Jiang

Research Collection School Of Computing and Information Systems

Twitter, one of the most popular social media platforms, has been studied from different angles. One of the important sources of information in Twitter is users’ biographies, which are short self-introductions written by users in free form. Biographies often describe users’ background and interests. However, to the best of our knowledge, there has not been much work trying to extract information from Twitter biographies. In this work, we study how to extract information revealing users’ personal interests from Twitter biographies. A sequential labeling model is trained with automatically constructed labeled data. The popular patterns expressing user interests are extracted and …

The Progressive Development Of Turbulence Statistics And Its Impact On Wind Power Predictability, Thomas Woolmington, Keith Sunderland, Jonathan Blackledge, Michael Conlon

Articles

Wind resource assessment is a critical parameter in a diverse range of considerations within the built environment. Engineers and scientists, engaging in building design, energy conservation/application and air-quality/air-pollution control measures, need to be cognisant of how the associated wind resource imposes increased complexities in their design and modelling processes. In this regard, the morphological heterogeneities within these environments, present significant challenges to quantifying the resource and its turbulent characteristics.

This paper presents three aspects of turbulence assessment within the built environment. Firstly, an analysis of how turbulence is currently quantified is considered. The industry standard, Turbulent Intensity (TI) is compared …

Computational And Experimental Investigation Into Yield Behavior And Cure Rate Dependence Of Thermoset Polymers, Christopher Harold Childers

Dissertations

This dissertation is broken down into two primary sections: firstly, the development and improvement of molecular dynamics simulations of thermoset matrix polymers including their use in understanding molecular response to applied strain deformation and secondly, the discernment of a cure heating ramp rate dependence of the final molecular and macro-molecular properties of thermoset matrix polymer.

The molecular dynamics section will discuss the development of molecular dynamics simulations of thermoset epoxy/amine matrix polymers, and the implementation of this work to determine the underlying molecular level events that cause thermoset matrix polymer yield. It will report a novel method for the determination …

"This Masterpiece Of Nature:" An Ecocritical Study Of Joseph Conrad's Fiction, Sonja Luther

Dissertations

This dissertation employs an ecocritical approach to explore the relationship between humans and nature in the works of Joseph Conrad. In his fiction, Conrad draws an impression of nature that was unusual for its time because of its complexity. Nature is not just simple scenery or a stage set in Conrad’s fiction; it plays a major role in his characters’ regression, which develops parallel to their alienation from nature. This dissertation explores the origins of man’s alienation from nature in Conrad’s work, particularly his early fiction, and the implications for society if such alienation continues.

Chapter I serves as an …

Relationships Between Participation In Extracurricular Activities, Act Scores, Gpa, And Attendance In Select Public High Schools In Mississippi, Lance Kelvin Reed

Dissertations

There are contemporary concerns about improving and sustaining positive student outcomes in secondary schools today. In light of student needs and limited time and resources available to address those needs, educational leaders are faced with making difficult decisions about what should and could be offered to students through their schools. In addition to the general curriculum, schools generally offer a variety of extracurricular activities. The purpose of this study is to investigate the relationship between extracurricular participation and select student outcomes. The findings of this study can provide valuable insight to school leaders as they make decisions about how to …

Molecular Probes For The Detection Of Zn2+ And Fe3+ Ions, Erendra Manandhar

Dissertations

A number of molecular probes have been designed and synthesized for the detection of Zn²⁺ and Fe³⁺ ions. Two types of functional groups have been incorporated into the molecular scaffolds to utilize different fluorescent mechanisms. The first class of receptors contains a pyrene moiety. These molecular probes use the excimer mechanism for the detection of Zn²⁺ ion. The probes work well in an organic solvent with a detection limit of 20 nM (one ppb). Alternatives are made to make them water soluble, but this proved to be difficult. An interesting ion-induced self-assembly system will also be discussed. …

Thermal Comfort, Energy Usage And Fuel Poverty In A Sample Of Older Person’S Households In Dublin, Eugene Monahan

Masters

This research was conducted in twenty nine Dublin City Council senior citizen sheltered housing dwellings. Temperature (°C) and relative humidity (% RH) was recorded inside all dwellings using data loggers over two separate monitoring periods of four months between December and March of 2011-2012 and 2012-2013. Energy usage including gas and electricity was also recorded for each dwelling during both monitoring periods. Outside ambient temperature data for both periods was acquired from Met Eireann. A dwelling occupant questionnaire was completed to obtain relevant technical, social and behavioural data, and to establish the prevalence of fuel poverty amongst the sample. The …

Language Use In Mathematics Textbooks Written In English And Spanish, Kailie Ann Bertoch

Theses and Dissertations

Research has suggested that although mathematics is a universal language, the notation, algorithms, and language in which it is taught varies from country to country. The literature has addressed the challenges associated with understanding the language of mathematics in English. Variable is a topic of mathematics where the literature has documented students' difficulty understanding the language of mathematics. Part of that difficulty is attributed to the fact that mathematics and English each have their own register and at times the differences in these registers conflict. This study examined the introduction and use of variable in the middle school textbooks of …

Classifying And Cataloging Cyber-Security Incidents Within Cyber-Physical Systems, William B. Miller

Theses and Dissertations

In the past, there were perceived delineations between the cyber world and the physical world. We are becoming increasingly aware of the overlap between these two worlds, and the overlap itself is increasing. The overlap between these two worlds is known as cyber-physical systems. There have been several incidents involving cyber-physical systems and the number of these incidents is increasing dramatically. In the past there has been no effort to identify methods for describing these incidents in the unique context of cyber-physical systems. This research provides a taxonomy for classifying these incidents that focuses on cross domain, impact oriented analysis. …

Language Pathways Defined In A Patient With Left Temporal Lobe Damagesecondary To Traumatic Brain Injury: A Qeeg & Mri Study, Janelle Lee Bailey

Theses and Dissertations

Though the current understanding of language processing is incomplete, it has been established that the left hemisphere is dominant for language in the majority of the population. Damage to language centers of the brain and to white matter tracts connecting these language centers results in a language deficit known as aphasia. Neuroplasticity in the brain can often compensate for these language deficits by strengthening neuronal connections between the right and left hemisphere, or by enhancing the neuronal connectivity of undamaged areas in the left hemisphere. Thus the brain can compensate for damaged language centers by using alternative cortical areas. These …

Pmsm Sensorless Speed Control Drive, Youakim Kalaani, Rami J. Haddad, Adel El-Shahat

Electrical & Computer Engineering: Faculty Publications

Permanent magnet synchronous machines (PMSM) are very popular in many industrial applications such as in mechatronics, automotive, energy storage flywheels, centrifugal compressors, vacuum pumps, and robotics. This paper proposes Sensorless control for a PMSM speed drive which is based on a closed loop control system using a proportional and integral (PI) controller that is designed to operate in flux weakening regions under a constant torque angle. This Sensorless element was adopted for best estimating the PMSM rotor position based on its performance characteristics eliminating the need for speed sensors which are usually required in such control applications. To achieve this …

Gradient-Based Compressive Sensing For Noise Image And Video Reconstruction, Huihuang Zhao, Yaonan Wang, Xiaojiang Peng, Zhijun Qiao

School of Mathematical & Statistical Sciences Faculty Publications

In this study, a fast gradient-based compressive sensing (FGB-CS) for noise image and video is proposed. Given a noise image or video, the authors first make it sparse by orthogonal transformation, and then reconstruct it by solving a convex optimisation problem with a novel gradient-based method. The main contribution is twofold. Firstly, they deal with the noise signal reconstruction as a convex minimisation problem, and propose a new compressive sensing based on gradient-based method for noise image and video. Secondly, to improve the computational efficiency of gradient-based compressive sensing, they formulate the convex optimisation of noise signal reconstruction under Lipschitz …

Connections Of Zero Curvature And Applications To Nonlinear Partial Differential Equations, Paul Bracken

School of Mathematical & Statistical Sciences Faculty Publications

A general formulation of zero curvature connections in a principle bundle is presented and some applications are discussed. It is proved that a related connection based on a prolongation in an associated bundle remains zero curvature as well. It is also shown that the connection coefficients can be defined so that the partial differential equation to be studied appears as the curvature term in the structure equations. It is discussed how Lax pairs and Bäcklund tranformations can be formulated for such equations that occur as zero curvature terms.

Cardioguard: A Brassiere-Based Reliable Ecg Monitoring Sensor System For Supporting Daily Smartphone Healthcare Applications, Sungjun Kwon, Jeehoon Kim, Seungwoo Kang, Youngki Lee, Hyunjae Baek, Kwangsuk Park

Research Collection School Of Computing and Information Systems

We propose CardioGuard, a brassiere-based reliable electrocardiogram (ECG) monitoring sensor system, for supporting daily smartphone healthcare applications. It is designed to satisfy two key requirements for user-unobtrusive daily ECG monitoring: reliability of ECG sensing and usability of the sensor. The system is validated through extensive evaluations. The evaluation results showed that the CardioGuard sensor reliably measure the ECG during 12 representative daily activities including diverse movement levels; 89.53% of QRS peaks were detected on average. The questionnaire-based user study with 15 participants showed that the CardioGuard sensor was comfortable and unobtrusive. Additionally, the signal-to-noise ratio test and the washing durability …

Reflections On Art, Nature And Technology: The Role Of Technology, Algorithm, Nature, Psyche And Imagination In The Aspiration Of An Aesthetic Experience, P Lopreiato

School of Art, Design and Architecture

There is something frustrating in the concept of algorithm that can even worry: its limitations. An algorithm does not need the time to define itself, it possesses in its structure everything that defines it and can work exclusively in a site, such as a computer, which is itself another finite system. Whenever a particular algorithm will be executed it will always be inexorably equal to itself because the number of possible states is finite. A logical­mathematical algorithm is essentially very different from a living being that reveals its being only in the passage of time, in the relationship with the …

Newsletter, December 2014, Aaup Chapter, Illinois Wesleyan University

Chapter Activities

No abstract provided.

Law’S Evolution And Law As Custom, William A. Edmundson

San Diego Law Review

normative, and law works by channeling custom-in-gross into progressively finer and more precise grooves. If there is normative moral value resident in the custom of elevating and following leaders, then that normativity ought to flow downstream into the finer channels officials carve and into the fresh territory they wish us to occupy. In places, that flow is too diluted, and normativity trails off. In places, officials direct the stream over a cliff, and it is no longer normative at all. In places, the stream is overtaken by stronger normative streams and can only make a difference yet farther downslope, where …

First All-Sky Search For Continuous Gravitational Waves From Unknown Sources In Binary Systems, J. Aasi, Marco Cavaglia, For Full List Of Authors, See Publisher's Website.

Physics Faculty Research & Creative Works

Gravitational waves from a variety of sources are predicted to superpose to create a stochastic background. This background is expected to contain unique information from throughout the history of the Universe that is unavailable through standard electromagnetic observations, making its study of fundamental importance to understanding the evolution of the Universe. We carry out a search for the stochastic background with the latest data from the LIGO and Virgo detectors. Consistent with predictions from most stochastic gravitational-wave background models, the data display no evidence of a stochastic gravitational-wave signal. Assuming a gravitational-wave spectrum of Ω_GW(f) = Ω_{α …}

Orientations Of Low-Energy Domain Walls In Perovskites With Oxygen Octahedral Tilts, Fei Xue, Yijia Gu, Linyun Liang, Yi Wang, Long-Qing Chen

Materials Science and Engineering Faculty Research & Creative Works

Many applications of ferroic materials, such as data storage and spintronics, are achieved through the control and manipulation of their domain wall (DW) orientations and configurations. Here we propose a rotational compatibility condition to identify low-energy DWs in perovskites with oxygen octahedral tilt instability. It is derived from the strong DW energy anisotropy arising from the rigidity and corner-sharing feature of the octahedral network. We analyze quantitatively the DWs in SrTiO₃ and explain successfully the unusual ferroelectric DW width and energy in BiFeO₃.

Groundwater Assessment In Sweihan Region, The Northeast United Arab Emirates, Maimouna Ali Al-Alawi

Theses

Sweihan is located in the northeast of Abu Dhabi Emirate, the United Arab Emirates. Sweihan landscape is sand dune ridges, which could reach a maximum width of 2 km, and a height of 30 meters, whereas the agricultural fields concentrated in the interdune spaces. Groundwater in Sweihan area is characterized by low recharge amounts, which is being used mainly in irrigation purpose. The intensive agricultural activities in the study area caused depletion and contamination of the groundwater due to heavy uses of organic and chemical fertilizers, as well as heavy pumping. The hydrochemical analysis of 27 samples of groundwater from …

Pads: Passive Detection Of Moving Targets With Dynamic Speed Using Phy Layer Information, Kun Qian, Chenshu Wu, Zheng Yang, Yunhao Liu, Zimu Zhou

Research Collection School Of Computing and Information Systems

Device-free passive detection is an emerging technology to detect whether there exists any moving entities in the area of interests without attaching any device to them. It is an essential primitive for a broad range of applications including intrusion detection for safety precautions, patient monitoring in hospitals, child and elder care at home, etc. Despite of the prevalent signal feature Received Signal Strength (RSS), most robust and reliable solutions resort to finer-grained channel descriptor at physical layer, e.g., the Channel State Information (CSI) in the 802.11n standard. Among a large body of emerging techniques, however, few of them have explored …

Using Consumer Informedness As An Information Strategy, Ting Li, Robert John Kauffman, Eric Van Heck, Peter Vervest, Benedict Dellaert

Research Collection School Of Computing and Information Systems

Consumer informedness describes the degree to which consumers are aware of the specific attributes of products or services offered in the marketplace. Understanding how this level of informedness can amplify consumer behaviour provides firms with the opportunity to develop information-based strategies that can encourage their target segment make purchases.

Empirical Demonstration Of Environmental Sensing In Catalytic Rna: Evolution Of Interpretive Behavior At The Origins Of Life, Niles Lehman, Tess Bernhard, Brian C. Larson, Andrew J.N. Robinson, Christopher C.B. Southgate

Chemistry Faculty Publications and Presentations

Background: The origins of life on the Earth required chemical entities to interact with their environments in ways that could respond to natural selection. The concept of interpretation, where biotic entities use signs in their environment as proxy for the existence of other items of selective value in their environment, has been proposed on theoretical grounds to be relevant to the origins and early evolution of life. However this concept has not been demonstrated empirically.

Results: Here, we present data that certain catalytic RNA sequences have properties that would enable interpretation of divalent cation levels in their environment. …

Multiscale Finite Element Models Of The Growth Plate Under Compressive Loads, Jie Gao

Electronic Theses and Dissertations Archive

It is generally accepted that mechanical loading of the growth plate influences bone growth and development. Previous computational studies of growth plate mechanics have been carried out at the tissue level and have focused on the beginning stage of development before and after the formation of the secondary center of ossification. This has led to the formulation of mechanoregulatory bone growth theories in terms of tissue level hydrostatic stresses and tensile strains. However, growth continues until the growth plate is a thin undulating structure sandwiched between bone layers. Within this structure, it is the chondrocytes, organized and arranged in columnar …

Efficient Integrity Verification Of Replicated Data In Cloud Using Homomorphic Encryption, Raghul Mukundan, Sanjay Madria, Mark Linderman

Computer Science Faculty Research & Creative Works

The cloud computing is an emerging model in which computing infrastructure resources are provided as a service over the internet. Data owners can outsource their data by remotely storing them in the cloud and enjoy on-demand high quality services from a shared pool of configurable computing resources. However, since data owners and the cloud servers are not in the same trusted domain, the outsourced data may be at risk as the cloud server may no longer be fully trusted. Therefore, data confidentiality, availability and integrity are of critical importance in such a scenario. The data owner encrypts data before storing …

Newsroom, Georgia Southern University

Newsroom (2006-2023)

• Georgia Southern University Readies for Annual Holiday Lighting
• Alumnus Celebrity Fashion Designer Returns to University; Judge Fashion Competition
• Three Professors Receive Large Grant to Aid Research

Research Express News, Georgia Southern University

Research & Economic Development

• Three Professors awarded grant to study beach water quality

My News

My News (2014-2020)

• Eagle Nation Celebrates Georgia Southern's Sun Belt Conference Championship
• Celebrate Georgia Southern Today
• Eat with Eagle Dining Services Wednesday
• Experience a Georgia Southern Tradition
• Alumnus Returns to Showcase Work, Judge Fashion Competition
• Eagle Leadership Program Honors 23 New Scholars
• Office of Career Services Offers Essential Resources for Job­Seeking Eagles
• Office of Alumni Relations Hosts "Countdown to Commencement
• Warm Clothing Available for Those in Need
• Three Professors Receive Large Grant to Aid Research
• Attend a Symphony Concert
• Support Student Made Sale
• Run the 'Boro This Friday
• Take a Holiday Music Journey

University Honors Program Newsletters, Honors Program,Georgia Southern University

Honors College: News & Publications (2008-2020)

• Congratulations Fall 2014 Graduates!
• Honors Research Symposium
• Southern Scholars Showcase
• Food For Finals
• Honors First-Year Experience Seminar
• Happy Holidays from the University Honors Program!