Completed unplanned but promising • experimentation on the use of ultrasonics for pressing of low-temperature (Nafion) MEAs. Submitted two publications for review based on • early unplanned experimentation and testing of low-temperature MEAs produced with both thermal pressing and ultrasonic pressing. Completed modifications of commercial ultrasonic • press and construction of custom tooling fo...

This work investigates the influence of wedge shape and depth of pressing on creation of stresses, as well as the influence of these stresses on quality of wood surface during wood embossing. For the identification of stresses, SolidWorks software was used, through which a simulation was made for the progression of monitored stresses which occur when pressing the wedges with various shapes to d...

We apply matrix theory over F2 to understand the nature of socalled “successful pressing sequences” of black-and-white vertex-colored graphs. These sequences arise in computational phylogenetics, where, by a celebrated result of Hannenhalli and Pevzner, the space of sortingsby-reversal of a signed permutation can be described by pressing sequences. In particular, we offer several alternative li...

Compaction of Bi and Ta powders was performed by uniaxial pressing at room temperature. Post-pressing density was evaluated as a function of the compaction pressure, and indicated that as the Ta content increases there is a reduction in density for comparable pressing conditions. A modified Heckel equation is used to evaluate the compaction behavior. The analysis indicates that the yield pressu...

The hippocampal EEG activity was recorded in male rats during the response-contingent reinforcement of a female. The instrumental response was a bar-pressing on a fixed-ratio-10 reinforcement schedule. The frequency of bar-pressing tends to increase during the succeeding copulatory series. The similar phenomenon was observed in the frequency of the hippocampal slow activity (RSA) accompanying t...