Raw data topographic measurements by Raman spectroscopy-coupled vertical scanning interferometry-measurements (R-VSI) of corroded steel surface

The corrosion and degradation of materials, such as pipeline steel, have a strong effect on both the environment and the economy. The quantification of these processes can therefore provide important information needed to manage their impact. In this study, a concept for the characterization and quantification of corrosion is demonstrated on API X70 steel immersed in 3.5 wt.% NaCl solution. Due to the difficulty of quantifying corrosion rates, e.g., through single mean values, a unique system is applied that directly couples Raman spectroscopy with vertical scanning interferometry to assess the physical and chemical aspects of steel corrosion kinetics. Vertical scanning interferometry allows the quantification of the topographical evolution of corrosion product formation and material dissolution in combination with the direct measurements of the respective rates. The Raman spectroscopy provides additional information about the (mineral) phases. Rate variations ranging from uniform corrosion to areas of high pit densities are quantified and analyzed in rate maps and subsequently visualized in rate spectra. The rate distribution is classified into different domains and pitting rates. Thus, a comprehensive quantitative assessment of the characteristic corrosion behavior is discussed

A Lack of Effect Studies and of Effects : The Use of Strategic Communication in the Military Domain

Psychological operations (PSYOP) implies a purposeful use of communication by a government or military organization to fulfill its mission and is one understanding of strategic communication. The present study focuses on PSYOP effects. The few studies available on this area indicate that the effects of PSYOP generally tend to be on a minor scale, while PSYOP may have a stronger impact in specific contexts. We discuss possible explanations and suggest that a number of psychological factors inhibit PSYOP success. One major example is that of human cognitive conservatism. Other psychological mechanisms, mostly emotional ones, may promote PSYOP, for example, strong identification with one’s own (national, ethnic or religious) group, a sense of threat to the resources, status and/or survival of own group, a perception of hostility from other groups, and the experience that another group has devalued or offended the in-group