Institutional Repository | North-West University | NWU
→
Research Output
→
Faculty of Engineering@PUK

Faculty of Engineering@PUK

Browse by

Recent Submissions

A practical quantification of blood glucose production due to high-level chronic stress

Liebenberg, Leon; Mathews, Edward Henry (Wiley, 2012)

Blood glucose (BG) is the primary metabolic fuel for, among others, cancer cell progression, cardiovascular disease and inflammation. Stress is an important contributor to the amount of BG produced especially by the liver. ...
µ-Analysis applied to self-sensing active magnetic bearings

Van Schoor, George; Van Vuuren, Pieter Andries (SAIEE Publications, 2011)

The stability margin of a two degree-of-freedom self-sensing active magnetic bearing (AMB) is estimated by means of µ-analysis. The specific self-sensing algorithm implemented in this study is the direct current measurement ...
Multivariable H∞ or Centre of gravity PD control for an active magnetic bearing flywheel system

Steyn, Stephanus Jacobus Marais; Van Schoor, George; Van Vuuren, Pieter Andries (SAIEE Publications, 2011)

A state-space model with uncertainties for an active magnetic bearing energy storage flywheel system (Fly-UPS) is developed. A multivariable robust H∞ controller for the Fly-UPS is then synthesised. Different weighting ...
Identifying opportunities for deterministic network coding in wireless mesh networks

Grobler, Magdalena Johanna; Helberg, Albertus Stephanus Jacobus (SAIEE Publishers, 2011)

Recent advances in methods to improve network utilisation has lead to the introduction of Network Coding, a technique that can reduce local congestion in a network by combining information sent over the network. In this ...
An integrated self-sensing approach for active magnetic bearings

Ranft, Eugen Otto; Van Schoor, George; Du Rand, Carel Petrus (SAIEE Publications, 2011)

Self-sensing permits active magnetic bearings (AMBs) to consolidate the actuation and sensing functions into a single electromagnetic transducer. Eliminating the position sensing device as well as interfacing reduce potential ...
Self-sensing for electromagnetic actuators. Part 2: Position estimation

Ranft, Eugen Otto; Van Schoor, George; Du Rand, Carel Petrus (Elsevier, 2011)

The second paper in a two part series presents the position estimation scheme for an 8-pole heteropolar active magnetic bearing (AMB). The integrated self-sensing assembly comprises a nonlinear MIMO parameter estimator ...