Process Engineering

Art conservators have been slow to adopt lasers as restoration tools, preferring their trusty scalpels and solvents to untried technologies. But the first systematic study of the long-term effects of lasers on paintings should help ease their doubts: the results show that lasers can be superior restoration tools without sacrificing the safety of priceless works of art.

The findings are reported in the Sept. 15 print edition of Analytical Chemistry, a peer-reviewed journal of the American Ch

In a Technology Foundation STW project, Coen van Gulijk has developed a new concept for a robust soot filter for diesel engines. As well as filter stages, the filter has an open canal so as to exclude the danger of blockage and thus fire.
The new soot filter consists of series of perforated ceramic foams. The surface of the ceramic is impregnated with a catalyst on which the incoming soot particles are burnt and released as gases. Ash particles from impurities in the diesel, which enter the filte

The aerodynamics inside jet engines are not completely understood due to the unpredictable nature of the air flowing through the turbine. However, a research team led by Dr Jim Barton from Heriot-Watt University, has developed tiny fibre optic pressure sensors that can for the first time be used inside jet engine test rigs. These sensors should allow engineers to collect data that will enable them to make more aerodynamic engines, which will improve fuel efficiency and engine performance, ensuring lo

Will we pay using our fingerprint, or enter a building just touching a sensor? Does our mobile phone recognize our fingerprint? It is possible, as far as Dutch PhD student Asker Bazen is concerned. He has improved the verification techniques, resulting in a better result even for deformed and damaged prints. Together with a higher speed, the new methods can take away existing reserves for implementing fingerprint verification. Bazen is finishing his PhD research at the faculty of Electrical Engineeri

Scientists at Northwestern University have developed a powerful new method for detecting infectious diseases, including those associated with many bioterrorism and warfare threats such as anthrax, tularemia, smallpox and HIV.

A research team led by Chad A. Mirkin, director of Northwestern’s Institute for Nanotechnology, has invented a technique for creating thousands of DNA detection probes made of gold nanoparticles with individual molecules attached. Much like human fingerprints, the

Medical researchers would like to use nano-scale tubes to push very tiny amounts of drugs dissolved in water to exactly where they are needed in the human body.

The roadblock to putting this theory into practical use has been the challenge of building pumps small enough to do the job. In addition to the engineering challenge of building a nano-scale pump, there is the added complication of clogging by any biological molecule that can occur in valves small enough to fit a channel the size of