Modelling the change in heat load with time is difficult for products with variable and complex geometries and compositions, such as beef carcasses. However, accurate heat load prediction is important for efficient design and operation of refrigeration systems. A simple method for constructing a model to predict the time-variable product heat load profile during chilling applications is propose...

Previous work by the authors on the mathematical modelling of the lower extremities is extended in this paper to the prediction of muscle load sharing and the corresponding hip, knee and ankle joint reactions during walking when the motion pattern is known beforehand. Using the same criterion for muscle load sharing as in the previous work on leaning and squatting, the results show excellent ag...

This paper presents the modelling and parameter determination of an induction motor. The dynamic induction motor model was derived in relatively simple terms by using the concept of space vectors in d-q variables based on two-axis theory equations and the space phasor notation. A synchronous reference frame in which rotor flux lies on the d-axis was chosen with simplified dynamic equations and ...

This paper deals with the elimination of harmonics at PCC in the presence of non-linear type of loads. Introduction of five-level DSTATCOM at PCC injects compensating currents for the minimization of harmonic content in the source currents. Non-linear loads when connected to the system draw non-linear components of current leaving undesired harmonics at the source side. DSTATCOM when connected ...

The utilization of networked, shared, heterogeneous workstations as an inexpensive parallel computational platform is an appealing idea. However, most performance models for parallel computation are oriented towards the use of tightly-coupled, dedicated, homogeneous processors. We develop and validate an analytic performance modelling methodology for synchronous iterative algorithms executing o...

Most trans-tibial amputation (TTA) patients use a prosthesis to retain upright mobility capabilities. Unfortunately, interaction between the residual limb and the prosthetic socket causes elevated internal strains and stresses in the muscle and fat tissues in the residual limb, which may lead to deep tissue injury (DTI) and other complications. Presently, there is paucity of information on the ...

The modelling of consequences to built infrastructure when subject to blast loading is well developed; however, there is considerable uncertainty and variability with explosive loading and system response; which provides many challenges for collateral damage estimation. In this paper, structural facades are assessed – with a focus on glazing – as this is a structural and load-capacity system th...