Ernesto Zumelzu

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The scientific production measured by the number of mainstream joint publications, resulting from the cooperative research efforts between Chile and Spain, considering disciplines, application field, type of journal, impact factor, and research institutions involved, was analyzed for the 1991-2000 period. Databases from several institutions, such as the(More)
An analysis was made using databases at the Institute for Scientific Information (ISI) in Philadelphia concerning the productivity in the field of engineering sciences in Chile, a developing country with a neoliberal economy which has mainstream articles related to the Latin American context. This paper also mentions policies and actions to be adopted in(More)
The new types of knowledge-intensive, multilayer containers consist of steel plates protected against corrosion by nanometric electrolytic chromium (Cr0) and chromium oxide (Cr2O3) layers chemically bonded to polyethylene terephthalate (PET) polymer coating to preserve food. It was observed that after emptying the cans, the salmon adhered to the polymer(More)
A new high (24%)-chromium alloy was experimentally manufactured by combining the particular chemical composition of various materials with the use of thermal treatments to produce pump impellers for the sugar industry. The alloy metal was tested in situ in a sugar medium and then evaluated by electrochemical measurements; the two former procedures were(More)
We report measurements of the Hall effect performed on 4 gold films evaporated onto mica substrates where the signal arises primarily from electron-surface scattering. The measurements were performed at low temperatures T (4 K < or = T < or = 50 K) under high magnetic field strengths B (1.5 T < or = B < or = 9 T), with B oriented perpendicular to the films.
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