Digital Commons Network^™

Thermodynamic Entropy Of A Magnetized Ree-Eyring Particle-Fluid Motion With Irreversibility Process: A Mathematical Paradigm, M. M. Bhatti, Sara I. Abdelsalam

Basic Science Engineering

This article deals with the entropy generation and irreversibility process under the effects of partial slip on magnetic dusty liquid induced by peristaltic wave through a porous channel. The Ree-Eyring fluid model has been used for a governing flow. Mathematical modelling is based on Ohm's law, continuity equation, Darcy law and momentum equation. Analytical solutions are presented for fluid and particle phase. The effects of different pertinent parameters are considered for Newtonian and non-Newtonian cases. Numerical integration has been carried out using a computational software to analyse the pumping characteristics. The behaviour of velocity profile, trapping mechanism, entropy generation, Bejan …

Leveraging Elasticity To Uncover The Role Of Rabinowitsch Suspension Through A Wavelike Conduit: Consolidated Blood Suspension Application, Sara I. Abdelsalam, A. Z. Zaher

Basic Science Engineering

The present work presents a mathematical investigation of a Rabinowitsch suspension fluid through elastic walls with heat transfer under the effect of electroosmotic forces (EOFs). The governing equations contain empirical stress-strain equations of the Rabinowitsch fluid model and equations of fluid motion along with heat transfer. It is of interest in this work to study the effects of EOFs, which are rigid spherical particles that are suspended in the Rabinowitsch fluid, the Grashof parameter, heat source, and elasticity on the shear stress of the Rabinowitsch fluid model and flow quantities. The solutions are achieved by taking long wavelength approximation with …

Design Out Waste Framework For Achieving Sustainability In Public Housing Projects In Egypt, Ayman Ahmed Ezzat Othman, Laila Elsawaf

Architectural Engineering

Due to the increasing population worldwide, Public housing projects (PHPs) have witnessed a rapid increase during the previous decades. Simultaneously, this generated a substantial amount of waste that represents roughly 40% of the solid waste produced by the construction industry every year. Being one of the significant phases of the construction process, the choices made during the design process play a crucial role towards increasing the solid waste created during the construction phase, which eventually affected the sustainability of the developed projects. This called for considering innovative strategies that reduce construction waste during the design process. This paper aims to …

Software Engineering In Australasia, Sherlock A. Licorish, Christoph Treude, John Grundy, Kelly Blincoe, Stephen Macdonell, Chakkrit Tantithamthavorn, Li Li, Jean-Guy Schneider

Research Collection School Of Computing and Information Systems

Six months ago an important call was made for researchers globally to provide insights into the way Software Engineering is done in their region. Heeding this call, we hereby outline the position Software Engineering in Australasia (New Zealand and Australia). This article first considers the software development methods, practices and tools that are popular in the Australasian software engineering community. We then briefly review the particular strengths of software engineering researchers in Australasia. Finally, we make an open call for collaborators by reflecting on our current position and identifying future opportunities.

Facial Emotion Recognition With Noisy Multi-Task Annotations, S. Zhang, Zhiwu Huang, D.P. Paudel, Gool L. Van

Research Collection School Of Computing and Information Systems

Human emotions can be inferred from facial expressions. However, the annotations of facial expressions are often highly noisy in common emotion coding models, including categorical and dimensional ones. To reduce human labelling effort on multi-task labels, we introduce a new problem of facial emotion recognition with noisy multitask annotations. For this new problem, we suggest a formulation from the point of joint distribution match view, which aims at learning more reliable correlations among raw facial images and multi-task labels, resulting in the reduction of noise influence. In our formulation, we exploit a new method to enable the emotion prediction and …

Proxy-Free Privacy-Preserving Task Matching With Efficient Revocation In Crowdsourcing, Jiangang Shu, Kan Yang, Xiaohua Jia, Ximeng Liu, Cong Wang, Robert H. Deng

Research Collection School Of Computing and Information Systems

Task matching in crowdsourcing has been extensively explored with the increasing popularity of crowdsourcing. However, privacy of tasks and workers is usually ignored in most of exiting solutions. In this paper, we study the problem of privacy-preserving task matching for crowdsourcing with multiple requesters and multiple workers. Instead of utilizing proxy re-encryption, we propose a proxy-free task matching scheme for multi-requester/multi-worker crowdsourcing, which achieves task-worker matching over encrypted data with scalability and non-interaction. We further design two different mechanisms for worker revocation including ServerLocal Revocation (SLR) and Global Revocation (GR), which realize efficient worker revocation with minimal overhead on the …

An Efficient Privacy Preserving Message Authentication Scheme For Internet-Of-Things, Jiannan Wei, Tran Viet Xuan Phuong, Guomin Yang

Research Collection School Of Computing and Information Systems

As an essential element of the next generation Internet, Internet of Things (IoT) has been undergoing an extensive development in recent years. In addition to the enhancement of peoples daily lives, IoT devices also generate/gather a massive amount of data that could be utilized by machine learning and big data analytics for different applications. Due to the machine-to-machine communication nature of IoT, data security and privacy are crucial issues that must be addressed to prevent different cyber attacks (e.g., impersonation and data pollution/poisoning attacks). Nevertheless, due to the constrained computation power and the diversity of IoT devices, it is a …

Discovering Hidden Topical Hubs And Authorities Across Multiple Online Social Networks, Ka Wei, Roy Lee, Tuan-Anh Hoang, Ee-Peng Lim

Research Collection School Of Computing and Information Systems

Finding influential users in online social networks (OSNs) is an important problem with many possible useful applications. Many methods have been proposed to identify influential users in OSNs. PageRank and HITs are two well known examples that determine influential users through link analysis. In recent years, new models that consider both content and social network links have been developed. The Hub and Authority Topic (HAT) model is one that extends HITS to identify topic-specific hubs and authorities by jointly learning hubs, authorities, and topical interests from users’ relationship and textual content. However, many of the previous works are confined to …

Rapid Transition Of A Technical Course From Face-To-Face To Online, Swapna Gottipatti, Venky Shankaraman

Research Collection School Of Computing and Information Systems

Just like most universities around the world, the senior management at Singapore Management University decided to move all courses to a virtual, online, synchronous mode, giving instructors a very short notice period—one week—to make this transition. In this paper, we describe the challenges, practical solutions adopted, and the lessons learnt in rapidly transitioning a face-to-face Master’s degree course in Text Analytics and Applications into a virtual, online, course format that could deliver a quality learning experience.

Coastal Dunes As A Sink And Secondary Source Of Marine Plastics: A Study At Perran Beach, Southwest England, Andrew Turner, Sara L. Amos, Tracey Williams

School of Geography, Earth and Environmental Sciences

No abstract provided.

Energy And Throughput Efficient Strategies For Heterogeneous Future Communication Networks, Haitham El-Mohamdy Khaled

Theses: Doctorates and Masters

As a result of the proliferation of wireless-enabled user equipment and data-hungry applications, mobile data traffic has exponentially increased in recent years.This in-crease has not only forced mobile networks to compete on the scarce wireless spectrum but also to intensify their power consumption to serve an ever-increasing number of user devices. The Heterogeneous Network (HetNet) concept, where mixed types of low-power base stations coexist with large macro base stations, has emerged as a potential solution to address power consumption and spectrum scarcity challenges. However, as a consequence of their inflexible, constrained, and hardware-based configurations, HetNets have major limitations in adapting …

Exploring The Experiences Of Australian Science Researchers; Library, Google And Beyond, Ewa Maria Niewiadomska

Theses: Doctorates and Masters

Universities and research institutions in Australia are under pressure to produce high-quality research outputs. To generate the desired level of research, continuous provision of information is required. As a result of developments of digital technologies, the information behaviour of academics, both as consumers and creators of new information and knowledge, has evolved and changed over the decades.

In this study, the primary research question focused on how science academics based at Australian universities experience digital information sources as part of their scholarly activities. To support these research goals, the thesis explores where science academics seek information to support their research …

Down The Rabbit Hole: An Exhibition – And – Alice In Wonderland Engaging With The Reflexive Project Of The Self: An Exegesis, Shana James

Theses: Doctorates and Masters

Alice’s Adventures in Wonderland is a culturally significant text that is widely known across many cultures. In this Victorian story, a little girl follows the talking White Rabbit down a rabbit hole to uncover a fantastical parallel world. Alice in Wonderland has remained in print for over 150 years, highlighting its continued relevance to generations of readers. This exegesis investigates the making of visual artwork that responds to this significant story, exploring the symbology and metaphorical nature of the text and seeing the story as a “reflexive project of the self” (Giddens, 1991, p. 5).

I began this research having …

A Defensive Strategy For Detecting Targeted Adversarial Poisoning Attacks In Machine Learning Trained Malware Detection Models, Adrian Michael Wood

Theses: Doctorates and Masters

Machine learning is a subset of Artificial Intelligence which is utilised in a variety of different fields to increase productivity, reduce overheads, and simplify the work process through training machines to automatically perform a task. Machine learning has been implemented in many different fields such as medical science, information technology, finance, and cyber security. Machine learning algorithms build models which identify patterns within data, which when applied to new data, can map the input to an output with a high degree of accuracy. To build the machine learning model, a dataset comprised of appropriate examples is divided into training and …

Prospects And Challenges For Supply Chain Trade Under The Africa Continental Free Trade Area☆:, Jaime De Melo, Anna Twum

Journal of African Trade

No abstract provided.

The African Continental Free Trade Area: A Historical Moment For Development In Africa:, Vera Songwe, Jamie Alexander Macleod, Stephen Karingi

Journal of African Trade

No abstract provided.

Resilient Control In The Presence Of Man-In-The-Middle Attacks, Paul Griffioen, Raffaele Romagnoli, Bruce H. Krogh, Bruno Sinopoli

Faculty Work Comprehensive List

Cyber-physical systems, which are ubiquitous in modern critical infrastructure, oftentimes rely on sending actuation commands and sensor measurements over a network, subjecting this information to potential man-in-the-middle attacks. These attacks can take the form of denial of service attacks or integrity attacks. Previous approaches at ensuring the resiliency of the overall control system against these types of attacks have leveraged functional redundancy in the system, including resilient estimation and reconfigurable control. However, these approaches are only able to ensure resiliency up to a particular subset of the actuator commands and sensor measurements being compromised. In contrast, we introduce a resiliency …

Reducing Attack Vulnerabilities Through Decentralized Event-Triggered Control, Paul Griffioen, Raffaele Romagnoli, Bruce H. Krogh, Bruno Sinopoli

Faculty Work Comprehensive List

Decentralized control systems are widely used in a number of situations and applications. In order for these systems to function properly and achieve their desired goals, information must be propagated between agents, which requires connecting to a network. To reduce vulnerabilities to attacks that may be carried out through the network, we design an event-triggered mechanism for network connection and communication that minimizes the amount of time agents must be connected to the network, in turn decreasing communication costs. This mechanism is a function of only local information and ensures stability for the overall system in attack-free scenarios. Our approach …

The Effect Of Blast Loading On Concrete Blast Walls With Different Materials And Geometries, Mohamed Hazem Awad, Aya Elhozayen

Civil Engineering

Blast loading tests have been developed in air by using ANSYS-AUTODYN program for simulation. The fourteen simulated models mainly conducted in four phases as first phase is discussing four models grouped in Group 1 consists of four concrete blast walls with double layer that subjected to four different masses of TNT (10, 50, 100, 500) kg. The main purpose for this group results to choose the proper TNT mass to use in the next phases of the research to make the comparison between models, involving pressure and damage, more obvious. The most appropriate mass is 100kg TNT to differentiate the …

Trends Of Open Access Self Archiving In E-Lis Repository With Specific Reference To Turkey, Ipsita Panda, Bulu Maharana

Library Philosophy and Practice (e-journal)

Open Access has already been there for last two decades as a model of scholarly communication. Among its multiple forms, Green Open Access or author self-archiving is increasingly becoming popular because of its barrier free (financial, technical and legal) and independent nature of publishing scholarly content. E-LIS, the discipline specific digital open archive aims to showcase e-prints of research papers in LIS and related fields. The present paper is the result of an effort to find out the contributions to E-LIS from Turkey which is the eighth major contributing nation in European continent (i.e. 417 out of 7556 submissions of …

Research Output Of Government College University Lahore, Pakistan: A Bibliometric Study Based On Scopus Database From 1908 To 2020, Khurram Shahzad, Abid Iqbal, Shakeel Ahmad Khan Dr., Irfan Ali, Muhammad Naeem, Yasir Javed, Samreen Lateef

Library Philosophy and Practice (e-journal)

Abstract

Purpose – The main purpose of the current study was to explore the research output of Government College University, Lahore Pakistan in terms of publications, citation trends, major research areas, co-authorship patterns, preferred journals, keywords used, and funding sponsored.

Design/methodology/approach – Current study used bibliometric analysis methodology for achieving the objectives. Data were extracted from the Scopus database through a query. Query was executed in June 2021 at Prince Sultan University; Saudi Arabia and 6085 publications were retrieved. Inclusion and exclusion criteria were also defined. The results were filtered according to the inclusion/exclusion criteria. Finally, 6008 records were included …

Infopreneurship As An Employment Option For Library And Information Science Students And Graduates In South Africa: A Literature Review, Lugisani Samuel Ramugondo

Library Philosophy and Practice (e-journal)

Abstract

Purpose - The review of literature aimed to determine if infopreneurship can employ Library and Information Science graduates in South Africa. The concept of infopreneurship, infopreneurship requisite competencies, areas of infopreneurship, and its challenges are discussed.

Design/methodology/approach - This paper applies a traditional literature review.

Findings - The results of the review of relevant subject literature indicate that infopreneurship, as a feature of the information sector, is practised in South Africa. Furthermore, it has established that infopreneurship is constantly developing, as are the activities infopreneurs can engage in. Notwithstanding its challenges, the findings, particularly those pertaining to the areas …

How Do Faculty Members Rate Students’ Information Literacy Skills And Where Do Students Rank Themselves? A Pakistani Perspective, Muhammad Safdar, Haroon Idrees

Library Philosophy and Practice (e-journal)

The study is intended to explore the opinion of the teaching faculty about students’ skills related to Information Literacy (IL). The other purpose was to seek the opinion of the faculty regarding the value of IL capabilities for their students and needs in this connections. Identification of the difference among various programs’ students’ IL skills was also among the objectives of this study. Data from students was collected using a questionnaire and an interview guide was utilized to conduct the interviews of the faculty for data collection purposes. Statistical Package for Social Sciences and Excel sheet were employed for analysis …

A Bibliometric Analysis Of Impunity For Marital Rape In Contemporary Context, Nagesh Haribhau Sawant Dr., Srushti Bhushan Angane

Library Philosophy and Practice (e-journal)

This bibliometric analysis focuses on the study of research publications that discuss how rape is a monstrous and inhumane act even if it is committed by the husband on his lawfully wedded wife. In this study, the authors aim to determine the frequency of such publications with an intention to establish that the problem of marital rape in contemporary society is receiving substantial attention from the researchers, therefore, the research on this subject is increasing. For this research, the data from 2010 to May 2021 has been collected from the Scopus database using VOSviewer software. The study consisted of a …

Discovering Topics From The Titles Of The Indian Lis Theses, Sourav Mazumder, Tapan Barui

Library Philosophy and Practice (e-journal)

A lot of text data is being generated on the web in the form of scholarly articles, doctoral thesis, social media, library databases, and data archives. They are easy to use but complicated to process for research works. That is exactly why text mining is required and topic modeling is one of the most important techniques involved in text mining. In this paper, an attempt has been made to discover topics from the thesis titles (uploaded theses) in the field of Library and Information Science (LIS). For this work, the text data (n=2132) has been obtained from the Shodhganga. Then, …

Information Discovery And Scholar Networking As Modes Of Scholarly Communication: A Comparative Study, Noor Abutayeh Dr., Berta Garcia-Orosa Dr., Khaldoon M. Al_Dwairi Dr.

Library Philosophy and Practice (e-journal)

This study sought to investigate information discovery and scholar networking as modes of scholarly communication across researchers in the Arab region. An online survey was distributed in December 2020 using the Google form. The questionnaire also includes the following elements: (a) what are the researchers’ purposes of using electronic resources; (b) how do researchers look for and access scholarly material and (c) what methods of networking are mostly used for scholar connection. The findings revealed no significant differences across the groups, even when it comes to gender and respondents’ discipline, it is clear that ResearchGate is the most popular among …

A Bibliometric Analysis On Optimization Of Application Layer Protocols In The Internet Of Things, Sagar Jaikar

Library Philosophy and Practice (e-journal)

Internet of Things (IoT), getting popular day by day, thanks to the every object that has been made intelligent and started communicated among themselves with ease. These objects are equipped with sensors and capable of connecting and exchanging the application data over the Internet. While the application data is getting exchanged among these intelligent objects smoothly, there are various concerns with these intelligent objects like they are constrained when it comes to resources like memory, processing capability, power consumption etc. In this regard many attempts are made to enhance or to optimize existing messaging protocols so that we can get …

Pre-Reading Activities And Students’ Achievement In French Oracy: Implication For Evaluation In Library And Information Science, Kenneth O. Eze Phd, Grace C. Offorma Phd, Christian S. Ugwuanyi Phd, Chinedu I.O. Okeke Phd

Library Philosophy and Practice (e-journal)

Library and Information Science is a profession that is full of people who are passionate about making a positive change in the world. In this profession, the workers are known as Librarians whose duty is to bridge the gaps that exist between people, information and technology. Librarians work to create reader’s advisory resources to encourage young students to develop a lifelong love of reading and learning through pre-reading activities. This paper thus, investigated the effect of pre-reading activities on students’ achievement in French oracy. Using quasi-experimental research design, 154 senior secondary one students participated in the study. French Oracy Achievement …

Reasons To Utilize Scholarly Journals By University Academic Staff, Muhammad Naeem, Khurram Shahzad, Samreen Lateef

Library Philosophy and Practice (e-journal)

1. Abstract

1.1 Objectives:

The objectives of the study were to investigate the preferred format of journals (print or online) by faculty members working at GC University Lahore, Pakistan, and to explore the reasons to use print and electronic journals by academic faculty.

1.2 Methodology:

Survey method is selected for this study. The target population of this study was the all-academic faculty members of GC University Lahore. They consisted of 400 faculty members. The convenience sampling technique was used. The researchers designed a semi-structured questionnaire as data collection instrument on the basis of extensive literature review. Before conducting the main survey, …

Accessibility Of Information On Marketplace Websites For Consumers With Disabilities, Hanny Hafiar, Priyo Subekti, Yanti Setianti, Adzkia Kirana Dipa

Library Philosophy and Practice (e-journal)

The need for information accessibility for people with disabilities is to access website-based information. However, until now, several websites still do not have an optimal level of accessibility, including marketplace websites in Indonesia. The purpose of this research is producing information about the evaluation results of the marketplace platform website as a consideration to make steps to increase website accessibility more effective. The method of this research is evaluative, it was conducted using the accessibility evaluation of several tools. The results of the evaluation of the accessibility of the most visited marketplace website in Indonesia show that there are still …