Blockchain, as a decentralised ledger technology with characteristics of transparent, secure, permanent and immutable, has been applied in many fields such as cryptocurrency, equity financing and corporate governance. However, the blockchain technology is in the experimental stage and has...

Exposure to pyrethroids, a significant class of the most widely used agricultural chemicals, has been associated with an increased risk of Parkinson’s disease (PD). However, the underlying mechanisms of pyrethroid-induced Parkinsonism remain unknown. In this study, we focused on...

Intrusion detection systems (IDSs) are important components of network security. However, it is well known that current IDSs generate large amount of alerts, including both true and false alerts. Other than proposing new techniques to detect intrusions without such problems, this thesis presents...

Service engagements arise commonly in business and scientific computing. A service engagement is characterized by autonomous parties coming together in a contractual arrangement to share resources or carry out tasks for one another. The autonomy of the participants is key, meaning that there is...

Access control is a mechanism for achieving confidentiality and integrity in software systems. Access control policies (ACPs) define how access is managed and the high-level rules of who can access what information under certain conditions. Traditionally, access control policies have been...