Compaction analysis and optimisation of convex-faced pharmaceutical tablets using numerical techniques

Numerical Simulation on Pharmaceutical Powder Compaction

In this paper, we present a modified density-dependent Drucker-Prager Cap (DPC) model with a nonlinear elasticity law developed to describe the compaction behavior of pharmaceutical powders. The model is implemented in ABAQUS with a user subroutine. Using microcrystalline cellulose (MCC) Avicel PH101 as an example, the modified DPC model is calibrated and used for finite element simulations of ...

Vascular Stent Design Optimisation Using Numerical Modelling Techniques

Numerical study of soil dynamic compaction using ABAQUS model

One of the most important methods of soil compaction is dynamic compaction, which is one of the oldest and economical methods of soil improvement up to great depths. This method is applied due to its many benefits, including its economic procedure to correct many kinds of soil. One of the most important issues that affect soil improvement methods is being economic. The three main method...

Descriptor Learning Using Convex Optimisation

The objective of this work is to learn descriptors suitable for the sparse feature detectors used in viewpoint invariant matching. We make a number of novel contributions towards this goal: first, it is shown that learning the pooling regions for the descriptor can be formulated as a convex optimisation problem selecting the regions using sparsity; second, it is shown that dimensionality reduct...

Analysis and optimisation of railway nodes using simulation techniques

Railway nodes represent sensitive points of railway networks, the efficiency of which influences the effectiveness of network processes. Those nodes belong to the most complex service systems involving sophisticated technological processes and are equipped with quite complicated and costly technical devices. Design of those systems and the organization of their operation have to facilitate the ...