Otogenic meningitis with cavernous sinus thrombosis

Since the introduction of antibiotics cavernous sinus thrombosis has become a rare condition especially in association with an otogenic purulent meningitis. Two cases were seen in a paediatric department witltin 18 months; they are presented here to call attention to the therapeutic problems involved

A fatal case of tetanus treated with tracheotomy and hypothermia

The modem management of tetanus has aroused recent interest. There are, however, few reports in the English literature on the use of hypothermia in tetanus in children. The following case, despite the unsuccessful outcome, is considered worthy of comment, as an illustration of the present-day approach, and the problems that arise in the treatment of tetanus

Imaging of Flames in Cement Kilns To Study the Influence of Different Fuel Types

The cement industry aims to use an increased amount of alternative fuels to reduce production costs and CO₂ emissions. In this study three cement plants firing different kinds and percentages of alternative fuel were studied. A specially developed camera setup was used to monitor the flames in the three cement kilns and assess the effect of alternative fuels on the flame. It was found that cofiring with solid recovered fuel (SRF) would delay the ignition point by about 2 m and lower the intensity and temperature of the kiln flame compared to a fossil fuel flame. This is related to a larger particle size and moisture content of the alternative fuels, which lowers the conversion rate compared to fossil fuels. The consequences can be a lower kiln temperature and cement quality. The longer conversion time may also lead to the possibility of localized reducing conditions in the cement kiln, which can have a negative impact on the clinker quality and process stability. The burner design may alleviate some of the issues encountered with SRF cofiring. At one of the test plants the burner was changed from a design with an annular channel for axial air to a jet design. This proved to be beneficial for an early ignition and improved dispersion of the fuel and led to an increase in cement quality and higher use of SRF