Nonnegative matrix factorization (NMF) has becoming an increasingly popular data processing tool these years, widely used by various communities including computer vision, text mining and bioinformatics. It is able to approximate each data sample in a data collection by a linear…
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Introduction: Over the past decades, several labelling techniques have been used in an attempt to track stem cells using magnetic resonance imaging (MRI). However, very few of these were able to definitely determine the precise location of stem cells within a living organism and…
The development of the plastic electronics industry has drawn great interest and inspired technology innovations in a broad area. This has stimulated the rapid development of flexible circuitry manufacturing technologies, including advances in conductive inks, printing technolog…
The motivation for this research is the synthesis and characterisation of nanostructured oxide materials for potential applications in renewable energy generation or storage. In particular, the research in this thesis addresses the development of nanostructured oxide materials w…
Doped zinc oxide is of interest as a transparent conductive oxide (TCO), due to the abundance of its major constituents, its low resistivity, high transparency and wide bandgap. The current work focuses on the properties required for TCO applications including resistivity of ≤10…
Ranked the third biggest cyber security threats of 2013 by Forbes, Internal Identity Theft-Related Crimes (IIDTRC) leave countless victims in their wake, including online retail companies and consumers. With the rapid growth in the use of credit and debit cards in e-commerce, th…
Creep deformation and failure in high temperature structures is a serious problem for industry and is becoming even more so under the current increasing pressures of power, economics and sustainability. Laboratory creep tests can be used in the description of creep damage behavi…
In modern manufacturing industry, precision components are typically produced on Computer Numerical Controlled (CNC) machine tools which translate their accuracy onto machined parts. This accuracy is affected by a set of different motion errors caused by inherent imperfections i…
The sensors most commonly used for monitoring machine health are wired accelerometers because of their high performances and good stability. However, these transducers are usually large in size; require an external power source. Hence, there is a need for cheaper and reliable al…
In the last decade, miniaturised “lab-on-a-chip” (LOC) devices have attracted significant interest in academia and industry. LOC sensors for electrochemical analysis now commonly reach picomolar in sensitivities, using only microliter-sized samples. One of the major drawbacks of…
This thesis aims to advance the understanding of ultrasonic processing for the alteration of food microstructures. It considers the impact of ultrasonic processing upon protein structure and for emulsification. It was shown that ultrasound treatment of proteins reduced the hydro…
This thesis presents a systematic study on the characterising ultrafast dynamics of photo excited carriers in hydrogenated nano crystalline silicon (nc-Si:H) and porous silicon (PS) materials using the ultrafast optical pump probe spectroscopy approaches. The work involves the g…
The aim of this report is to present results related to the application of the Finite Difference Time Domain (FDTD) method for the study of various devices at terahertz frequencies. The FDTD method has emerged as one of the most widely used numerical analysis methods used for el…
The Institution of Engineers Malaysia (IEM) and the Board of Engineers Malaysia (BEM) stress the need for Malaysian engineering graduates to be able to integrate sustainable development knowledge, skills and values in their professional practice. The 2012 Engineering Accreditati…
Emerging web services technology has introduced the concept of autonomic interoperability and portability between services. The number of online services has increased dramatically with many duplicating similar functionality and results. Composing online services to solve user n…
The state of environmental degradation demands that factors contributing to it be looked into. A chief cause of environmental degradation is exhaust emissions from vehicles, especially passenger cars. This paper attempts to quantify the relationship between vehicle fuel emission…
The study is concerned with generating recommendations for the development of e- learning strategy at the School of Engineering at Tripoli University in Libya. They are based on the identified barriers to the successful e-learning implementation in the institution after the quan…
This study analyses the perceptions of English as a foreign language (EFL) lecturers of their use of technology to support teaching and learning at a Libyan university. A case study is used to understand the experiences at one university in Libya based on data from 12 semi-struc…
This thesis addresses YouTube-based programming in Saudi Arabia. It focuses on the bottom-up, professionally generated content (PGC) produced by the Saudi youth exclusively for YouTube between 2010 and 2016. It explores the economic, political and cultural context of YouTube-bas…