In this paper a simulation assignment, which was developed to teach both undergraduate and postgraduate students at the University of Pretoria some of the main issues regarding closed-loop system identification, is discussed. A motivation for closedloop system identification and a simulation assignment in this field is given. Then the simulation assignment is outlined, each step discussed, and ...

Bus systems involve complex bus-bus and bus-passengers interactions. We study the problem of assigning buses to bus stops minimise average waiting time passengers, W. An analytical theory for two specific cases interactions is formulated: normal situation where all board passengers from every stop, versus novel express disjoint subsets non-interacting serve stops. Our formulation allows exact c...

accurate modeling of the wind energy conversion system is necessary to design and implementation of the control loop for the generator and the frequency converter, in order to extract maximum power from the wind and to investigate the effects of interconnection between wind farms and power system. in this paper the combination of a permanent magnet synchronous generator loaded with a diode rect...

Flexible robotic cells combine the capabilities of robotic flow shops with those of flexible manufacturing systems. In an m-machine flexible cell, each part visits each machine in the same order. However, the m operations can be performed in any order, and each machine can be configured to perform any operation. We derive the maximum percentage increase in throughput that can be achieved by cha...

Based on a recently proposed parametric approach for eigenstructure assignment in descriptor linear systems via output feedback, the robust eigenvalue assignment problem in descriptor linear systems via output feedback is solved. The problem aims to assign a set of finite closed-loop eigenvalues which have minimum sensitivities with respect to perturbations in the closed-loop coefficient matric...

Staff assignment is of great importance for workflow management systems. In many workflow applications, staff assignment is still performed manually. In this paper, we present a semi-automatic approach intended to reduce the number of manual staff assignment. Our approach applies a machine learning algorithm to the workflow event log to learn various kinds of activities that each actor undertak...

In the deterministic assignment problem, there are n jobs, n machines and a n x n non-negative matrix (t j,,,) representing the cost of performing job j on machine m. An assignment is a permutation ~ of {1, ..., n}, indicating that job j is assigned to machine ~(j). The optimal assignment has cost min~tj ,~(j) , j the minimum taken over permutations re. For the random assignment problem we defi...

Software development projects receive many change requests each day and each report must be examined to decide how the request will be handled by the project. One decision that is frequently made is to which software developer to assign the change request. Efforts have been made toward semi-automating this decision, with the most promising approaches using machine learning algorithms. However, ...