Browsing PhD Theses Collection by Title
Now showing items 761-780 of 1138
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New Cryptanalysis and Modelling for Wireless Networking
(2016-04-18)High data rates and interoperability of vender devices have made WiMAX a prime desire for use worldwide. WiMAX is based on the IEEE 802.16 standard. IEEE 802.16a, b, c & d versions were updated within three years of the ... -
A New Rheological Polymer Based on Boron Siloxane Cross-Linked by Isocyanate Groups
(University of Hertfordshire, 2012-05-17)The research described in this thesis originated from an idea to develop new body protection for the sport of fencing. The ultimate goal is to develop body armour which would be flexible, wearable, washable, light and ... -
Newly Qualified Nurses’ Early Experiences of Working as Unqualified Mentors
(2022-06-11)Although a wealth of research examines varying facets of mentorship within nursing, to date, the voices and perspectives of newly qualified nurses working as mentors without formal preparation have largely been excluded ... -
The Newspaper Portrayal of Mothers Accessing Food Banks in the UK
(2021-10-07)Aim: This study investigated the newspaper portrayal of mothers’ accessing food banks in the UK. Specifically, how their identities were portrayed, how their experiences were portrayed and how the impact of this was ... -
The Nexus Paradox: Legal Personality and the Theory of the Firm
(University of Hertfordshire, 2013-05-28)In the last four decades, one of the fastest-growing fields of research in economics has been the contractual theory of the firm developed in Coase’s (1937) footsteps. Yet despite what otherwise seems to be a genuine success ... -
Numerical Modelling of Mixing and Separating of Fluid Flows through Porous Media
(2018-02-01)In present finite element study, the dynamics of incompressible isothermal flows of Newtonian and two generalised non–Newtonian models through complex mixing–separating planar channel and circular pipe filled with and ... -
Nutrition and Metabolic Adaptation: the Assessment and Impact of Dietary Manipulation on Metabolic and Cellular Perturbation
(2017-07-20)It is well established that improved nutritional strategies can enhance both health and exercise performance. Scientific developments in recent years have furthered our understanding of cellular metabolism, which in turn, ... -
Occupational stress and work-life balance in UK academics
(University of Hertfordshire, 2006)The research presented in this thesis aimed to provide insight into the work-related wellbeing of a little-studied occupational group: academic employees working in universities in the UK. More specifically, it examined ... -
Off-Label and Unlicensed Medicines' Related Problems in Paediatric In-Patients
(2018-10-15)Background: Current legislations such as paediatric investigation plan (PIP) require pharmaceutical companies seeking marketing authorisation for a new medicine to provide evidence of studies in paediatrics to justify the ... -
On the Key Processes that Drive Galaxy Evolution: the Role of Galaxy Mergers, Accretion, Local Environment and Feedback in Shaping the Present-Day Universe
(2019-07-17)The study of galaxy evolution is a fundamental discipline in modern astrophysics, dealing with how and why galaxies of all types evolve over time. The diversity of present-day galaxies is a reflection of the processes ... -
An Online Survey to Investigate Clinicians’ Use of, Attitudes Towards, and Perceived Competency Around Outcome Monitoring Practices
(University of Hertfordshire, 2014-09-15)In recent years, there has been an ever increasing emphasis placed on the collection and use of patient reported outcome measures (PROM) in mental health services. This emphasis stems from a culture of evidence based ... -
Open-set Speaker Identification
(2018-12-20)This study is motivated by the growing need for effective extraction of intelligence and evidence from audio recordings in the fight against crime, a need made ever more apparent with the recent expansion of criminal and ... -
Opportunities and Barriers to Leadership for Female Finance Directors in the United Kingdom: a Qualitative Study
(2023-02-17)Despite progress and legislation, there are relatively few women in finance director roles. Men are still seven times more likely to be finance directors than women (Austin, 2020). This inequity led to the development of ... -
Optical Cartography of the Northern Galactic Plane
(2016-06-28)Counting stars as a means of studying the structure of the Milky Way has a long history, which has progressed significantly with the undertaking of large-area surveys. Photographic surveys have been supplanted with the ... -
Optical Measurement of Airborne Particles on Unmanned Aircraft
(2023-09-30)Aerosols and clouds are persistent causes of uncertainty in climate and weather models, which is due to their heterogeneous suspension and occurrence within the atmosphere, and complex interactions which are chaotic and ... -
Optimal Cooperative Spectrum Sensing for Cognitive Radio
(2016-09-08)The rapid increasing interest in wireless communication has led to the continuous development of wireless devices and technologies. The modern convergence and interoperability of wireless technologies has further increased ... -
Optimisation and Characterisation of a Curved Bimetallic Blade and its Performance Within a Thermal Motor
(University of Hertfordshire, 2014-07-04)In most flat bimetallic strip applications, the bending is employed in the transverse direction, that is, upon the application of uniform heating to the entire strip, the initially straight strip bends transversely up from ... -
Optimisation of IMPAXX EPS Foam Energy Absorber with Applications for Amphibian Aircraft Landing on Water
(2019-05-29)The research aims to optimise the design of IMPAXX EPS foam energy absorber for enhanced landing performance of an amphibian aircraft. Extensive transient dynamic simulations have been carried out to investigate the effect ... -
Optimisation of Piston Bowl Geometry and Double Injection Strategy in Diesel Engines Using a Bespoke Hybrid Regression-Based Technique
(2022-07-11)This research work is driven by the requirement for more efficient and cleaner internal combustion engines that meet fuel saving demands, stringent emissions regulations, and compatibility with hybrid powertrain technology. ... -
Optimising Cooperative Spectrum Sensing in Cognitive Radio Networks Using Interference Alignment and Space-Time Coding
(2018-03-04)In this thesis, the process of optimizing Cooperative Spectrum Sensing in Cognitive Radio has been investigated in fast-fading environments where simulation results have shown that its performance is limited by the Probability ...