Composite gas separation Nike Trainers Roshe Run membranes with a 0.1–3 μm thick film of Hyflon AD 60X on a porous hollow fibre ultrafiltration membrane support of amorphous poly(ether ether ketone), were prepared. The influence of the coating conditions on the film thickness and on the pure gas transport properties was studied. The gas transport properties were related to the film thickness and to the morphology of the supporting UF membrane.
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in-line microscope is proposed as a simple tool for post-production inspection of metallic film patterns on silicon wafers. Transmission holographic imaging is achieved by using a superluminescent diode emitting in the near infrared coupled into a single-mode high numerical aperture optical fiber and an infrared vidicon camera. Images of 300 nm thick vapor-deposited aluminum bolometers are presented.
A simple phase field model for one component melt growth is presented, which includes anisotropy in a certain form. The formation of various dendritic patterns can
be shown by a series of numerical simulations of this model. Qualitative relations between the shapes of crystals and some physical parameters are discussed. Also it is shown that noises give a crucial influence on the side branch structure of dendrites in some situations.