This thesis presents the realization of novel systems for optical sensing networks with an array of long-period grating (LPG) sensors. As a launching point of the thesis, the motivation to implement optical sensing network in precisely catering LPG sensors is presented. It highl…
The trustworthiness of a Wireless Sensor Network (WSN) comes from the data it receives, which in turn depends on the trustworthiness of each and every node in that network. Among several motivations for developing WSN trust models, the social networking and ecommerce models are …
The growing demand of Electric energy powered vehicles has some unwanted side effects on the current power grid system. Some of these side effects are wires not being able to sustain such high currents for prolonged periods of time, transformers not being able to sustain stable …
The population of most western countries is ageing and, therefore, the ageing issue now matters more than ever. According to the reports of the United Nations in 2017, there were a total of 15.8 million (26.9%) people over 60 years of age in the United Kindom, and the numbers ar…
A Wireless Sensor Network (WSN) consists of a number of nodes, each typically having a small amount of non-replenishable energy. Some of the nodes have sensors, which may be used to gather environmental data. A common network abstraction used in WSNs is the (source, sink) archit…
The research presented within this thesis is concerned with the design, synthesis, characterisation, and analysis of a series of new compounds of platinum (II), with aims to produce compounds possessing switchable optical properties, and with potential applications as "smart-mat…
This thesis presents a study of lasing properties and optical amplification in semiconducting conjugated polymers and dendrimers. Configured as surface-emitting distributed feedback lasers, the effect of incorporating wavelength-scale microstructure on the output of the devices …