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...types of monomers are mixed together before being injected into a mould, where they polymerise to form the plastic component. In reinforced reaction injection molding, reinforcing agents are added to the monomer mixture...General arrangement: [Diagram to illustrate the reaction injection moulding process (as per article)] Schematic outline of mixing apparatus for RIM....

...types of electron beam welding: High vacuum (HV-EBW): Workpiece at 10-4–0.1 Pa, highest purity welds, deepest penetration, lowest shrinkage and distortion, highest capital and maintenance costs, longest pump-down times (3–30 min), slowest production rate. Medium vacuum (MV-EBW): Workpiece at 0.1–3000 Pa, lower purity, wider, more tapered, less penetrating welds,...

...Type of flux Applications Borax and fluoro-borate General use above 750˚C except with refractory oxides Fluoride General use below 750˚C except with refractory oxide Alkali-halide All processes involving the brazing of aluminium and aluminium-based alloys, with Zn, Cd or Al-Si systems Fluorine/boron compounds 600 - 1000˚C particularly with refractory oxides Design:...

...types of cells in the brain, depending on their functions. For example, there are epithelial cells, which are in charge of creating CSF, and neurons, in charge of transmitting information. There are endothelial cells, which stay together to be blood vessels, and astrocytes, which make up a big portion of the brain tissue and have many functions such as helping other cells...

...type of data is therefore becoming increasingly important. It allows scientists to fully make use of the information available, and allows them to compare and analyse data generated from different sources. It can be used to find new links between genes and disease that may be responsible for diseases such as cancer. Armed with this information we can work towards the...