Digital Commons Network^™

Information Hiding Using Convolutional Encoding, Jonathan Blackledge, Paul Tobin, J. Myeza, C. M. Adolfo

Conference papers

We consider two functions f1(r) and f2(r), for r 2 Rn and the problem of ‘Diffusing’ these functions together, followed by the application of an encryption process we call ‘Stochastic Diffusion’ and then hiding the output of this process in to one or other of the same functions. The coupling of these two processes (i.e., data diffusion and stochastic diffusion) is considered using a form of conditioning that generates a wellposed and data consistent inverse solution for the purpose of decrypting the output. After presenting the basic encryption method and (encrypted) information hiding model, coupled with a mathematical analysis (within …

Interoperable Ocean Observing Using Archetypes: A Use-Case Based Evaluation, Paul Stacey, Damon Berry

Conference papers

This paper presents a use-case based evaluation of the impact of two-level modeling on the automatic federation of ocean observational data. The goal of the work is to increase the interoperability and data quality of aggregated ocean observations to support convenient discovery and consumption by applications. An assessment of the interoperability of served data flows from publicly available ocean observing spatial data infrastructures was performed. Barriers to consumption of existing standards-compliant ocean-observing data streams were examined, including the impact of adherence to agreed data standards. Historical data flows were mapped to a set of archetypes and a backward integration experiment …

A Machine Learning Management Model For Qoe Enhancement In Next-Generation Wireless Ecosystems, Eva Ibarrola, Mark Davis, Camille Voisin, Ciara Close, Leire Cristobo

Conference papers

Next-generation wireless ecosystems are expected to comprise heterogeneous technologies and diverse deployment scenarios. Ensuring a good quality of service (QoS) will be one of the major challenges of next-generation wireless systems on account of a variety of factors that are beyond the control of network and service providers. In this context, ITU-T is working on updating the various Recommendations related to QoS and users' quality of experience (QoE). Considering the ITU-T QoS framework, we propose a methodology to develop a global QoS management model for next-generation wireless ecosystems taking advantage of big data and machine learning. The results from a …

Video Quality Prediction Under Time-Varying Loads, Obinna Izima, Ruairí De Fréin, Mark Davis

Conference papers

We are on the cusp of an era where we can responsively and adaptively predict future network performance from network device statistics in the Cloud. To make this happen, regression-based models have been applied to learn mappings between the kernel metrics of a machine in a service cluster and service quality metrics on a client machine. The path ahead requires the ability to adaptively parametrize learning algorithms for arbitrary problems and to increase computation speed. We consider methods to adaptively parametrize regularization penalties, coupled with methods for compensating for the effects of the time-varying loads present in the system, namely …

On Fixed Beamforming In Sectored Mmwave Ultra Dense Networks At 73ghz, Jasmina Mcmenamy, Haris Kremo, George A. Ropokis, Adam Narbudowicz

Conference papers

We investigate the use of fixed analogue transmit beamforming for downlink communication in millimetre-wave (mmWave) band ultra-dense networks (UDNs) at 73GHz. Our simulation study is based on 3D radiation patterns using a real design of large planar antenna arrays with different horizontal beamwidths and full characterisation of interference. The effects of network densification are captured through different ratios of the number of access points (APs) to the number of users. We quantify the system's performance by evaluating outage and achievable rate. The results show that users with rates around the mean benefit more from the densification than from narrowing the …

An Audience With International Regulators In The Manufacture Of Medicines 2018: Quality Risk Management (Qrm) And Knowledge Management (Km), Anne Greene (Editor), Kevin O'Donnell (Editor), Nuala Calnan (Editor)

Books

A monograph based on a seminar organised by The School of Chemistry & Pharmaceutical Sciences, Dublin Institute of Technology, with Regulatory Science Ireland, and with The Health Products Regulatory Authority

Nurturing ‘Buds Of Development’: From Outcomes To Opportunities In Early Childhood Practice, Noirin Hayes, Katarina Filipovic

Articles

The current future-focused, outcomes driven early childhood policy climate presents a danger that early years pedagogy will lose sight of the ‘present’ child. Increasingly policy support for early childhood education is built around an emphasis on preparing children for school and positioning it as a key element in enhancing society through preparing future citizens to become productive members of society. The measurable outcomes discourse, in emphasising product, renders invisible the critical contribution of the processes of everyday practice to children’s development. To challenge and counteract the strong outcome discourse early years professionals must have confidence in their pedagogy. However, research …

Public Goods And Public Policy: What Is Public Good, And Who And What Decides?, Ellen Hazelkorn, Andrew Gibson

Articles

Higher education is usually seen as serving the public good, especially when funded directly by the state, and because of the ‘social benefit efficiency gains and potential equity effects on opportunity and reduced inequality’ (McMahon, 2009, p. 255). Calhoun (2006, p. 19) argues that public support for higher education is only given and maintained according to its capacity, capability, and willingness, to ‘educate citizens in general, to share knowledge, to distribute it as widely as possible in accord with publically articulated purposes’.

An Energy-Based Approach To Assess And Predict Erosive Airfoil Defouling, Arthur Rudek, Thomas-Alexander Zitzmann, Geral Russ, Barry Duignan

Articles

A dynamic indentation experiment is presented for assessment of the adhesive behavior of a range of coatings in erosive defouling of commercial aircraft engines using CO2 dry-ice. A series of experiments is presented in which particles made from a reference material (polyoxymethylene – POM) and from CO2 dry-ice are made to impact compressor airfoils under a range of impact angle and velocity conditions. The airfoils investigated are coated with an indicator material (PTFE), which is typically used to visualise the defouling effect in large scale compressor defouling experiments. In addition, fouled compressor airfoils taken from service and coated with a …

Guide To The University Archives Collection, Pettus Archives

University Archives Finding Aids

No abstract provided.

W408-003c-01 - Business Office: Student Financial Services: Correspondence And Memoranda, Division Of Finance And Business Affairs, Business Office, Student Financial Services

University Archives Finding Aids

No abstract provided.

Chemical Sciences In The Community, Claire M. Mcdonnell

Posters

Poster describing projects undertaken by Students Learning with Communities e.g. Students Learning with Communities in the School of Chemical and Pharmaceutical Sciences, DIT; Safety Audits and Chemical Risk Assessments in Small Businesses; Interaction with Schools, St Michael's Youth Project and the General Public.

A Distributed Service Delivery Platform For Automotive Environments: Enhancing Communication Capabilities Of An M2m Service Platform For Automotive Application, Markus Glaab

School of Engineering, Computing and Mathematics Theses

The automotive domain is changing. On the way to more convenient, safe, and efficient vehicles, the role of electronic controllers and particularly software has increased significantly for many years, and vehicles have become software-intensive systems. Furthermore, vehicles are connected to the Internet to enable Advanced Driver Assistance Systems and enhanced In-Vehicle Infotainment functionalities. This widens the automotive software and system landscape beyond the physical vehicle boundaries to presently include as well external backend servers in the cloud. Moreover, the connectivity facilitates new kinds of distributed functionalities, making the vehicle a part of an Intelligent Transportation System (ITS) and thus an …

Automated Identification Of Digital Evidence Across Heterogeneous Data Resources, Hussam J Mohammed

School of Engineering, Computing and Mathematics Theses

Digital forensics has become an increasingly important tool in the fight against cyber and computer-assisted crime. However, with an increasing range of technologies at people’s disposal, investigators find themselves having to process and analyse many systems with large volumes of data (e.g., PCs, laptops, tablets, and smartphones) within a single case. Unfortunately, current digital forensic tools operate in an isolated manner, investigating systems and applications individually. The heterogeneity and volume of evidence place time constraints and a significant burden on investigators. Examples of heterogeneity include applications such as messaging (e.g., iMessenger, Viber, Snapchat, and WhatsApp), web browsers (e.g., Firefox and …

Laser Light Interaction And Their Influence On Dna And Cell Under In Vitro Conditions, Ruwaidah Abdulameer Mussttaf

School of Engineering, Computing and Mathematics Theses

Laser photobiomodulation (PBM) or low-level laser therapy (LLLT) is a form of phototherapy recognized worldwide for its expansive use in medicine. PBM/LLLT has the ability to enhance enzymatic activity and mitochondrial transmembrane potential that increase the availability of energy and the signal transduction, which promotes cell proliferation. This study primarily investigates the appropriateness of a range of treatment parameters, including light wavelength, irradiance (doses) and exposure time of PBM/LLLT in proliferation of cultured human monocytic leukaemia cell line THP-1(Tamm-Horsfall Protein 1), as well as DNA under in vitro conditions. A secondary objective was to exploit the beneficial effect of PBM/LLLT …

On Lowering The Error Floor Of Short-To-Medium Block Length Irregular Low Density Parity Check Codes, Umar-Faruk Abdu-Aguye

School of Engineering, Computing and Mathematics Theses

Gallager proposed and developed low density parity check (LDPC) codes in the early 1960s. LDPC codes were rediscovered in the early 1990s and shown to be capacity approaching over the additive white Gaussian noise (AWGN) channel. Subsequently, density evolution (DE) optimized symbol node degree distributions were used to significantly improve the decoding performance of short to medium length irregular LDPC codes. Currently, the short to medium length LDPC codes with the lowest error floor are DE optimized irregular LDPC codes constructed using progressive edge growth (PEG) algorithm modifications which are designed to increase the approximate cycle extrinsic message degrees (ACE) …

Improving The Representation Of The Fragility Of Coastal Structures, Robert Jane

School of Engineering, Computing and Mathematics Theses

Robust Flood Risk Analysis (FRA) is essential for effective flood risk management. The performance of any flood defence assets will heavily influence the estimate of an area’s flood risk. It is therefore critical that the probability of a coastal flood defence asset incurring a structural failure when subjected to a particular loading i.e. its fragility is accurately quantified. The fragility representations of coastal defence assets presently adopted in UK National FRA (NaFRA) suffer three pertinent limitations. Firstly, assumptions relating to the modelling of the dependence structure of the variables that comprise the hydraulic load, including the water level, wave height …

Continuous Identity Verification In Cloud Computing Services, Burhan Mollan Salih Al-Bayati

School of Engineering, Computing and Mathematics Theses

Cloud computing has become a hugely popular new paradigm for hosting and delivering services over the internet for individuals and organisations with low cost. However, security is a sensitive issue in cloud computing, as it its services remain accessible to anyone after initial authenticated login and for significant periods. This has led to an increase in the number of attacks on sensitive cus-tomer information. This research identified biometric approaches as a possible solution for security to be maintained beyond the point of entry. Specifically, behaviour profiling has been proposed and applied across various other applications in the area of Transparent …

A Developmental Model Of Trust In Humanoid Robots, Massimiliano Patacchiola

School of Engineering, Computing and Mathematics Theses

Trust between humans and artificial systems has recently received increased attention due to the widespread use of autonomous systems in our society. In this context trust plays a dual role. On the one hand it is necessary to build robots that are perceived as trustworthy by humans. On the other hand we need to give to those robots the ability to discriminate between reliable and unreliable informants. This thesis focused on the second problem, presenting an interdisciplinary investigation of trust, in particular a computational model based on neuroscientific and psychological assumptions. First of all, the use of Bayesian networks for …

Contributions To Converters In Single Phase Distributed Photovoltaic Systems, Ali Hussein Abduljabbar Al-Omari

School of Engineering, Computing and Mathematics Theses

This thesis contributes to improve the photovoltaic Distributed Generation (DG) systems by proposing three novel methods to the system. On DC conversion side, a new integrated magnetic structure for interleaved converter and a new method to calculate the eddy current and hysteresis losses in the magnetic core were proposed. On inversion side, A new synchronisation method for grid tie inverters was suggested. The technique is using the Recursive Discrete Fourier Transform (RDFT) to find fundamental in grid waveform. On the DC converter side, the benefits of the new structure is to produce magnetic flux that alternate in the core across …

Numerical Modelling Of Extreme Waves: The Role Of Nonlinear Wave-Wave Interactions, Thomas Vyzikas

School of Engineering, Computing and Mathematics Theses

The real monsters of the ocean, extreme waves, haunted mariners since the early days of human activities in the sea. Despite having caused numerous accidents and casualties, their systematic study began only in 2000s. Many mechanisms have been proposed to simulate these rare but catastrophic events, with the most prominent being wave focusing. This is connected to the NewWave theory, which has been used extensively in experimental and numerical modelling. However, the majority of the studies fail to capture the distinguishing characteristics of extreme waves, due to the inherent high nonlinearity of the problem and shortcomings of the modelling practice, …

A Scientometric Analysis Of Knowledge Management Research And Practice Literature: 2003 – 2015, Ahmed Ramy, Jenni Floody, Mohamed Af Ragab, Amr Arisha

Articles

The purpose of this paper is to explore the current research trends in Knowledge Management (KM) through a scientometric analysis of all literature published in KMRP between 2003 and 2015 (506 articles). The review framework explores three sets of review questions addressing Research Productivity, Research Themes and Methods, and Citation Analysis. The study elucidates wide global interest in KM and an increasing trend towards multi-author collaboration. Although more than 55 different industries have featured in the journal, certain knowledge-intensive sectors remain underrepresented. Country productivity shows few nations taking the lead with an interesting correlation between research activity and economic prosperity. …

Contesting Early Childhood Professional Identities: A Cross-National Discussion, Sonja Arndt, Mathias Urban, Colette Murray, Kylie Smith, Beth Swadener, Tomas Ellegaard

Articles

In this collective article, the authors explore constructions of early childhood practitioners and how they disconnect and reconnect in a global neo-liberal education policy context. The contributions to the conversation provide windows into shifting professional identities across five national contexts: New Zealand, the USA, Ireland, Australia and Denmark. The authors ask who benefits from the notion of distinct professional identities, linked to early childhood education as locally and culturally embedded practice. They conceptualize teachers’ shifting subjectivities, drawing on Kristeva’s philosophical conception of identity as constantly in construction, open and evolving. Arguments for the urgency to counter the global uniformity machine, …

W424-001 - Faculty: Faculty Conference Minutes And Related Records, Faculty

University Archives Finding Aids

No abstract provided.

Volume 27, Issue 3, Winter 2018-19, Office Of Communications, Illinois Wesleyan University

Illinois Wesleyan University Magazine, 2018-present

INSIDE THIS ISSUE
VOLUME 27 | NUMBER 3 | WINTER 2018-19

ON OUR COVER: A breakthrough moment inspired Lisa Mishra ’15 to put her career on hold and pursue a future in the music industry. Portrait photo by Jason Reblando. Digital illustration by Gary Schwartz.
14 Homecoming 2018 Illinois Wesleyan celebrated 100 years of Homecoming at “A Century of Celebration,” with many alumni and friends returning to campus for the annual tradition Oct. 5-7, 2018.
16 Leap of Faith Music has always been a way of life for Lisa Mishra ’15, but a breakthrough moment launched a new career for …

Understanding Market Inefficiency In The East Asian Region During Times Of Crisis, Lucia Morales, Bernadette Andreosso-O’Callaghan

Articles

The study of financial market efficiency has important implications in terms of global macroeconomic stability. The case of six selected East Asian stock markets (China, Japan, Hong Kong, Malaysia, Singapore and South Korea) during the Asian Financial Crisis (AFC) and Global Financial Crisis (GFC) is analysed here using a battery of well-known econometric techniques that starts with traditional unit root testing for random walk behaviour. The six countries were selected on the basis of market capitalization to offer insights into the behaviour of the most relevant markets in the region. The results show that during both crises, these markets exhibited …

Green Networking: Analyses Of Power Consumption Of Real And Complex Ifft/Fft Used In Next-Generation Networks And Optical Orthogonal Frequency Division Multiplexing, Sameer Sami Hassan Al-Obaidi

School of Engineering, Computing and Mathematics Theses

The Orthogonal Frequency Division Multiplexing is a promising technology for the Next Generation Networks. This technique was selected because of the flexibility for the various parameters, high spectral efficiency, and immunity to ISI. The OFDM technique suffers from significant digital signal processing, especially inside the Inverse/ Fast Fourier Transform IFFT/FFT. This part is used to perform the orthogonality/De-orthogonality between the subcarriers which the important part of the OFDM system. Therefore, it is important to understand the parameter effects on the increase or to decrease the FPGA power consumption for the IFFT/FFT. This thesis is focusing on the FPGA power consumption …

A Secure Quorum Based Multi-Tag Rfid System, Ayad Al-Adhami

School of Engineering, Computing and Mathematics Theses

Radio Frequency Identification (RFID) technology has been expanded to be used in different fields that need automatic identifying and verifying of tagged objects without human intervention. RFID technology offers a great advantage in comparison with barcodes by providing accurate information, ease of use and reducing of labour cost. These advantages have been utilised by using passive RFID tags. Although RFID technology can enhance the efficiency of different RFID applications systems, researchers have reported issues regarding the use of RFID technology. These issues are making the technology vulnerable to many threats in terms of security and privacy. Different RFID solutions, based …

Drivers Of Wearable Computing Adoption: An Empirical Study Of Success Factors Including It Security And Consumer Behaviour-Related Aspects, Lena Gribel

School of Engineering, Computing and Mathematics Theses

The recent advances in information technologies have dramatically changed the manner in which people understand, experience and use IT systems. Wearable computers are emerging new technologies in the evolution of mobile devices, which introduce a paradigm shift in the field of human computer-interaction. By equipping the user with computational capabilities, ‘wearables’ provide context-aware and seamlessly integrated on-the-fly computing across heterogeneous circumstances and irrespective of place and time. Not least the very promising market prospects for wearable devices imply various unprecedented business opportunities and a vast economic potential of these socio-technological gadgets. Nonetheless, analysis of the current market situation shows that …

Teaching Robots Social Autonomy From In Situ Human Supervision, Emmanuel Senft

School of Engineering, Computing and Mathematics Theses

Traditionally the behaviour of social robots has been programmed. However, increasingly there has been a focus on letting robots learn their behaviour to some extent from example or through trial and error. This on the one hand excludes the need for programming, but also allows the robot to adapt to circumstances not foreseen at the time of programming. One such occasion is when the user wants to tailor or fully specify the robot’s behaviour. The engineer often has limited knowledge of what the user wants or what the deployment circumstances specifically require. Instead, the user does know what is expected …