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We compare three different approaches to high-resolution contact lithography with special emphasis on contrast mechanisms for subwavelength structures. Masks with protruding metal absorbers, masks with absorbers embedded in the transparent background, and ...
A rod of single crystalline silicon has been subjected to high-power nanosecond laser pulses inducing ultrasonic and shock waves traveling into the bulk of the material. Stroboscopic time-resolved high-energy x-ray diffraction measurements were carried out ...
Stability of operation of Francis turbines Hydraulic disturbances often come with the operation of Francis turbines outside of design head and flow. In some cases, the excessive amplitude of the dynamic system response to these disturbances leads to res ...
Objective: Several cell carriers need to be selected and characterized for their compatibility with fetal cartilaginous cell survival and activity. In order to assess the in vivo regeneration capacity of fetal cartilaginous cells, these cell carriers will ...
A FIA method has been developed and fully characterized for the simultaneous detection of ammonia and glutamine in culture media. Ammonia detection is based upon a chem. method and does not require an electrode. This species diffuses across a hydrophobic p ...
This investigation centers on the effects of oscillating normal shocks in unsteady flow. Systematic measurements in a turbine model in an annular cascade preceded the detailed investigations. This setup was used to detect the phenomena which cause shock in ...
A dynamic simulation method was applied to det. the state of a stagewise gas absorption column. The unsteady state heat and mass balances for each real stage were integrated up to the steady state, considering all possible heat effects. The new method resu ...
Située au Nord de la Sardaigne, la ville portuaire de Porto Torres est le point d'entrée de l'île pour un nombre croissant de passagers (majoritairement motorisés) dont la plupart sont des touristes du Nord de l'Europe. De grands flux de véhicules sont ain ...
A combined analytical and FEM method for prediction of the no-load voltage waveform of laminated salient pole synchronous generators is presented in this article. Very precise prediction of the no-load voltage, including saturation effects as well as the e ...
