O-qpsk transmitting system in spectral spreading with temporal diversity
BR9501693A
Carbides and nitrides of transition elements with controlled porosity
BR9501616A
Carbides and nitrides of transition elements applied in the catalytic decomposition of hydrazine
BR9500865A
Drills for dental use or related wear or drilling use coated with diamond obtained with chemical growth techniques from the vapor phase -CVD (chemical vapor deposition)
BR9500864A
Doping of the mixture of methane and hydrogen with halogenated gases in the production of thin or self-supporting diamond films
BR9500118A
Spinners for the manufacture of yarn of any material in any shape and in any dimension obtained with diamond from the techniques of growth from the chemical deposition of the vapor-cvd phase (chemical vapor deposition)
BR9500117A
Drills and saws for drilling and cutting glass and stones in general developed with thin, self-supporting diamond films obtained with the chemical deposition technique from the vapor-cvd (chemical vapor deposition) phase