Now showing items 31-40 of 427
Sizing of renewable energy hydrogen systems
This paper explains the simulation and sizing optimization of renewable energy systems for hydrogen production. These systems are complex and challenging to size correctly due to the nonlinearities of the components and ...
Using visual texture analysis to classify raw coal components
Coal ore isn’t a uniform material. In order to optimize the coal liberation process it is necessary to classify a coal ore sample into its constituent components as quickly and cheaply possible. This paper investigates ...
Applying RFID technology to improve efficiency in border-post cargo clearance process
Stakeholders in cross-border logistics and trade corridors have always been concerned about ways of improving operational efficiency. Cargo owners and cargo forwarders have been particularly concerned with long delays in ...
An approach to improve the match-on-card fingerprint authentication system security
The combination of smart cards and biometrics results in a strong 2-factor authentication. It facilitates a trusted credential for authenticating an individual's identity through one-to-one biometric verification using the ...
Intrusion detection in Bluetooth enabled mobile phones
Bluetooth plays a major role in expanding global spread of wireless technology. This predominantly happens through Bluetooth enabled mobile phones, which cover almost 60% of the Bluetooth market. Although Bluetooth mobile ...
Introducing XGL: a lexicalised probabilistic graphical lemmatiser for isiXhosa
In this paper, a lexicalized probabilistic graphical lemmatiser for isiXhosa, XGL, is presented. An overview of isiXhosa lemmatisation issues is given, followed by a discussion on previous work in automated lemmatisation ...
An investigation into the use of the kriging for Wi-Fi RSSI estimation in complex indoor environments
Kriging was originally developed for geographical interpolation purposes, but has proven to be a powerful tool in many other applications as well. In this study we evaluate kriging for Wi-Fi signal strength estimation in ...
Modified earliest decoding for random network codes
We present a practical, modified version of earliest decoding for random linear network coding networks. This decoding method has a lower complexity and decoding delay than traditional Gaussian elimination decoding schemes
A study of the loss characteristics of a single cell PEM electrolyser for pure hydrogen production
In this paper the losses of a proton exchange membrane (PEM) single cell electrolyser were investigated. The ohmic, activation and mass transfer losses are the most prominent losses in a PEM electrolyser. The Electrochemical ...
Energy-based visualisation of an axial-flow compressor system for the purposes of fault detection and diagnosis
As the complexity of industrial systems increases, the necessity also increases for more reliable, robust and accurate Fault Detection and Diagnosis (FDD) techniques. This article proposes a methodology for the design of ...