Microwave tomography (MWT) is a relatively new imaging modality that uses electromagnetic radiation to illuminate an object. Using the scattered field by the object of interest, MWT reconstructs the image of the object. We have been doing research on this topic for a few years and we have successfully developed several computational-imaging algorithms and experimental tomography systems at our imaging lab of the University of Manitoba. In order to increase the accuracy of measurements and calibration procedure, we want to increase the number of probing sites in the system.
Navigation interfaces (such as scrolling, zooming, and panning) are the key components that help users move between different views on a document. The project’s goal is to enhance current user interfaces for collaborative search tasks. Initially, we will use spatial documents (ie, maps) to explore potential enhancements. We will also provide visual features, to improve collaborative search tasks, which will show to each user where the other is browsing.
Anaerobic digestion is an environmentally-friendly process that breaks down biomass into simpler, more stable components, while simultaneously capturing energy in the form of a methane-rich biogas. Digesters are usually used to treat wastes, such as at municipal waste facilities, or from livestock farms. However, anaerobic digesters are not very reliable, suffering from occasional “digester upsets”. Consequently, anaerobic digestion is less attractive to industry as compared to other less environmental alternatives. The reason behind this unreliability lies in the complexities of anaero
The key challenge of condition monitoring is to predict, based on non-destructive inspection and operating data, whether or not a piece of equipment needs replacing or not. In this case the piece of equipment is an overhead power conductor – a critical element in electrical power supply. Measuring the voltage level of an overhead conductor presents a challenging engineering problem.
Being able to accurately determine the model parameters for multi-conductor overhead and underground cable systems is important for power transmission system simulation. Current analytical based methods are limited to simple configurations of conductors and employ approximations that limit their accuracy at high frequencies. In this project we develop a numerical Finite Integration based technique for calculation of transmission line parameters and for calculation of the associated electromagnetic fields.