The current financial crisis has given rise to calls to toughen considerably the codes of corporate governance put in place in many countries to regulate corporate behaviour (e.g. the UK Combined Code). These codes vary slightly in form but tend to contain a mix of non-discretionary regulations...

Much potentially useful energy is wasted because it is carried by effluent gases containing contaminants which cause rapid fouling of heat exchange surfaces, which might be used to recover this energy. A solution to this problem might lie in the use of a falling cloud of dense particles to...