A variety of pulmonary reactions have been associated with the inhalation of metallic dusts. 1, 2 Some of these result in familiar pneumoconioses, whereas others simply result in intrapulmonary pigment deposition. Some of the metallic materials that can cause disease as well as the typical reaction to deposits of these particulates are listed in Table 1. Electron microprobe analysis can be usef...

Some workers have held that mid-ocean ridge basalts are fractionated from high pressure (15-30 kbar) picritic primary magmas whereas others have favored primary magmas generated at about 10 kbar with compositions close to those of mid-ocean ridge basalts. Of critical significance are presumed differences in composition between experimentally determined primary magmas and the least fractionated ...

This note repairs some inaccuracies in the congruence proof for recursion previously developed for Marko-vian bisimulation equivalence. We provide a revised proof based on standard machinery obtained by smoothly extending Milner's technique based on bisimulation up to. The machinery we introduce for EMPA can be easily adapted in order to obtain accurate proofs for any other Markovian process al...

T O B I A S J . B R U N N E R , ‡ P E T E R W I C K , § P I U S M A N S E R , § P H I L I P P S P O H N , § R O B E R T N . G R A S S , ‡ L U D W I G K . L I M B A C H , ‡ A R I E B R U I N I N K , § A N D W E N D E L I N J . S T A R K * , ‡ Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland, and Laboratory for Bio...

Effect of organic compounds on nanoparticle formation in diluted diesel exhaust U. Mathis, M. Mohr, and R. Zenobi EMPA, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for Internal Combustion Engines and Furnaces, CH-8600 Dübendorf, Switzerland ETH Hönggerberg, Swiss Federal Institute of Technology, Chemistry Department, CH-8093 Zürich, Switzerland Received: 6 November...

DATA on the distribution of the precious metals (Au, Ag and the platinum=group elements Ru, Rh, Pd, Os, Ir, Pt) are rapidly accumulating as a consequence of the application of microbeam analytical techniques such as the electron microprobe, the proton microprobe, and the ion microprobe. The new data obtained with these techniques build on knowledge accumulated over the last 140 years using bulk...

The surface topography developed on copper-based and ferrous alloys after being sputtered in a glow discharge lamp and in an ion microprobe was studied by means of a scanning electron microscope and an ion microprobe mass analyser. The observed surface topography, though obtained under completely different conditions, was found to be similar to that predicted by the theory of Stewart and Thompson.

A novel approach for characterisation of nanoclay dispersion in polymeric composites using electron microprobe analysis (EMPA) is presented. Dispersion analysis was performed on three sets of centre-gated discs fabricated by resin transfer moulding. The first set was neat epoxy polymer without reinforcement, whereas the second set comprised 17 vol.-% randomly oriented chopped glass fibre prefor...