Observations sur la salissure dans le port d'Ostende

Observations on the pollution of an emerging tufnol plate over a period of 13 months (11-IV-1963/ 28-V-1964) in the harbour of Ostend: temperatures and chemistry of the environment; granulometry of the accumulated mud; inventory and evolution in the time of fouling organism

Questioning Anglocentrism in plural policing studies : private security regulation in Belgium and the United Kingdom

Recent Continental European scholarship has identified a problematic Anglocentric bias running through the field of comparative plural policing studies. It has sought to counter this bias by emphasizing a series of divergent plural policing trajectories between the more market-friendly countries in the Anglosphere and the more state-centric countries in Continental Europe. While acknowledging the significance of this corrective, we argue that it tends to overemphasize the levels of divergence between these two regions. We substantiate this claim by examining the rise of the private security industry and its regulation by the state in the UK (representing the Anglosphere) and Belgium (representing Continental Europe). Interpreting historical and contemporary data through Sabatier and Weible’s advocacy coalition framework, which focuses on the cut and thrust of democratic politics, we observe how in both countries this important dimension of the plural policing landscape is characterized not by counterposed market-friendly and state-centric trajectories, but rather by a complex mix of state–market interactions. In other words, the dynamics of private security regulation are more state-centric in the UK and more market-friendly in Belgium than recent Continental European scholarship suggests. Moreover, we illustrate how, under conditions of post-financial crisis austerity, the overarching pattern is, if anything, one of convergence towards a common set of political dynamics. This is an important finding that not only makes an original contribution towards private security regulation scholarship but also encourages us to question the nature of Anglocentric bias within comparative plural policing studies

BRDF characterization of Al-coated thermoplastic polymer surfaces

In this paper, we present a combined morphological and optical characterization of aluminum-coated thermoplastic polymer surfaces. Flat plastic substrates, obtained by means of an injection molding process starting from plastic granules, were coated with ultra-thin aluminum films evaporated in vacuo, on top of which a silicon-based protective layer was plasma deposited in order to prevent oxidation of the metal reflective surface. Different sample treatments were studied to unravel the influence of substrate chemistry, substrate thickness, aluminum and protective layer thickness, and surface roughness on the actual optical reflectance properties. Bidirectional reflectance distribution function measurements, corroborated by surface morphological information obtained by means of atomic force microscopy, correlate reflectance characteristics with the root-mean-square surface roughness, providing evidence for\ua0the role of the substrate and the thin films\u2019 morphology. The results unravel information of interest within many applicative fields involving metal coating processes of plastic substrates as an example in the case of automotive lighting