A hardware device is presented that converts colour to speech for use by the blind and visually impaired. The use of audio tones for transferring knowledge of colours identified to individuals was investigated but was discarded in favour of the use of direct speech. A unique colourclustering algorithm was implemented using a hardware description language (VHDL), which inturn was used to program...

In this paper, polyacrylonitrile PAN - titania TiO2 electrospun nanofiber PAN/TiO2 nanofiber was prepared via a facile electrospinning method. The characteristics of the PAN/TiO2 nanofiber were investigated using SEM and FTIR. The nanofiber showed retained nanofiber structures and high photocatalytic efficiency under UV light for the degradation of Direct Red 80 DR80 and Direct Red 23 DR23 in w...

The warming trend of the past decade may be related to increasing amounts of downward solar radiation reaching the Earth’s surface. Recent decreases in tropospheric aerosols may also have contributed via both direct and indirect aerosol effects. The green line (above) reveals a long-term decreasing tendency in the tropospheric aerosol optical thickness (AOT) and the red line shows the overall b...

Graphene oxide/Ag nanoparticles (Ag/GO) was prepared and employed to synthesize antifouling polyethersulfone (PES) mixed matrix membranes. The performance of the membranes was evaluated in terms of flux, hydrophilicity and anti-biofouling properties. With increment of the Ag/GO from 0 to 0.1 wt.%, the pure water flux increased from 24.7 up to 54.1 kg/m2 h. The flux recovery ratio (FRR) of the m...

A new direct method for the measurement of red cell lithium was compared with the indirect method. Good correlation (r = 0.97) was found and the coefficients of variation of the direct and indirect methods were 3.9% and 5.5%, respectively. In the direct method red cells suspended in choline chloride were centrifuged through dibutyl phthalate, which removes plasma adherent to the cells. A haemol...

Six cases of immune hemolytic anemia attributed to donor-derived red cell antibodies after allogeneic bone marrow transplantation (BMT) are reported. In 2/6 cases, severe intravascular hemolysis was seen, 6/6 required increased red cell transfusion, and 1/6 was treated by plasma exchange. All recipients were receiving cyclosporine to prevent graft-v-host disease. Investigations showed that in e...