For example, consider a businessman who normally supplies materials of high quality but once in a while one out of 10 times–he supplies sub-standard materials.
Glasses are normally brittle materials with no tensile ductility at room temperature.
Normally, cellulosic materials are treated with enzymes that first convert it to sugar, with microbes then used to ferment the sugar into ethanol fuel.
Jo Lauryssen, sales director at Vlassak-Verhulst, said the company normally selected materials in keeping with the architecture: "English tiles for an English house, Belgian for a Belgian house".
This discovery provides a new approach to turning normally inactive materials, whose catalytic activity is hindered by low intrinsic conductivity, into electrocatalysts, and will lead to the discovery of new catalysts.
The high density of ionized and excited species in the plasma can change the surface properties of normally inert materials.
Normally, this material requires high-energy photons to generate electricity.
Peat is a very variable but normally weak material.
Also, the normally opaque material can be made translucent by adding small amounts of magnesia.
Normally, molten material flows into cracks in sedimentary rocks and then solidifies, she explains.
