Optical parameters (absorption coefficient k, infinite reflectance Rinfinity, scattering coefficient 8) are tabulated for seven wavelengths and analyzed for statistical differences for 30 plant species. The wavelengths are: 550 nm (green reflectance peak), 650 nm (chlorophyll absorption band), 850 nm (infrared reflectance plateau), 1450 nm (water absorption band), 1650 nm (reflectance peak foll...

All nail surgical procedures require the use of a tourniquet. The nail bed, being a very vascular structure, needs to be exsanguinated at the start and then a tourniquet needs to be tied at the base. A number of tourniquets have been described, including a Foley's catheter, a Penrose drain, a rubber strip or a rubber band. The present article explains the use of the easily available, improvised...

In this contribution the influence of an extrusion process on the viscosity function of rubber blends is identified. This knowledge is required for performance of realistic numerical simulations of injection heads and extrusion tools for rubber profile production. The experimental basis of this investigation are tests with both, capillary and extrusion rheometer. The latter is a combination of ...

When describing the effectiveness of a plastic clamp in eliminating the risk of haemorrhage from the umbilical cord, as compared with the ineffectiveness of standard umbilical tape in some 750o of instances under laboratory conditions, Neligan and Smith (1963) suggested that the use of a rubber band merited further study. This was on account of the clamp's cost, its rather startling appearance ...