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Peer Reviewed
See detailCorrespondence analysis for quantification in electron energy loss spectroscopy and imaging.
Gelsema, E. S.; Beckers, Albert ULg; Sorber, C. W. et al

in Methods of Information in Medicine (1992), 31(1), 29-35

Electron energy loss spectroscopy (EELS) is a technique to investigate the physical properties of material. Using this technique it is possible to detect the presence of a specific element in a specimen ... [more ▼]

Electron energy loss spectroscopy (EELS) is a technique to investigate the physical properties of material. Using this technique it is possible to detect the presence of a specific element in a specimen. When used in combination with an electron microscope, energy filtered images may be obtained, which in principle may be used to quantify the local element concentration. This involves a process of background correction, conventionally performed assuming a specific parametric behavior of the spectral intensity as a function of electron energy loss. In this article a parameter-free method is described for background correction based on the formalism of correspondence analysis. Such a method may be used in parts of the spectrum where the functional dependence of the spectral intensity is unknown. Use of this method for element detection has been suggested before. This article reports simulation experiments suggesting its suitability for quantitative determination of element distributions and element concentrations. [less ▲]

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See detailCorrespondences between the conception principles of sustainable public spaces and the criteria of outdoor comfort
Reiter, Sigrid ULg

in de Wit, M. H. (Ed.) Plea 2004 - Proceedings of the 21th International Conference on Passive and Low Energy Architecture (2004)

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See detailCorridor Report on Belgium : the case of Moroccan and Turkish Immigrants.
Gsir, Sonia ULg; Mandin, Jérémy ULg; Mescoli, Elsa ULg

Report (2015)

This report compares two important corridor migrations to Belgium in order to better understand the variation in several dimensions of Turkish and Moroccan immigrants’ integration – in particular, labour ... [more ▼]

This report compares two important corridor migrations to Belgium in order to better understand the variation in several dimensions of Turkish and Moroccan immigrants’ integration – in particular, labour market, education and citizenship. It is based on an original methodology combining three different data sources (an analysis of the legal and political frameworks, a quantitative analysis, and a survey). It aims to test the INTERACT project’s main hypothesis which conceives of integration as a three-way process. This report provides insight on integration from the immigration country perspective but also from the countries of origin; it appraises the impact that Turkey and Morocco may have on the integration of their migrants in Belgium. The main findings are the following. Firstly, the countries of origin may have an impact on integration when emigration starts. Secondly, countries of origin may have a positive or negative impact on some integration dimensions (citizenship) but no obvious impact on others (education and labour market). In their efforts to maintain and develop links and to protect migrants’ rights abroad, countries of origin can thus facilitate integration, but indirectly. [less ▲]

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See detailCorrigenda to the 4th edition of the Bright Star Catalogue
Renson, Pierre ULg

in Bulletin d'Information du Centre de Données Stellaires (1993), 43

Not Available

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See detailCorrigenda: The lipid phosphatase SHIP2 controls insulin sensitivity
Clément, S.; Krause, U.; Desmedt, F. et al

in Nature (2004), 431

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See detailCorrigendum to "Quantitative and qualitative study of spelt and wheat fibres in varying milling fractions
Escarnot, Emmanuelle; Agneessens, Richard; Wathelet, Bernard ULg et al

in Food Chemistry (2010), 122

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See detailLa corrispondenza di Giovan Battista di Iacopo Guicciardini (1508-1589), tra pubblico e privato
Moreno, Paola ULg

in M. Barbato; C. Gigante (Eds.) Aspects de la culture, de la langue et de la littérature italiennes en Belgique. Actes de la journée d’étude en l’honneur de Michel Bastiaensen (2011)

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See detailCorrosion atmosphérique des bronzes et Spectroscopie Mössbauer.
Sougrati, Moulay Tahar ULg

Doctoral thesis (2008)

The aim of this work is to improve our understanding of the atmospheric corrosion of bronzes. This work focuses on three axes: - The characterization of tin compounds expected in atmospheric corrosion ... [more ▼]

The aim of this work is to improve our understanding of the atmospheric corrosion of bronzes. This work focuses on three axes: - The characterization of tin compounds expected in atmospheric corrosion. The Mössbauer spectroscopy which has been the main tool in our multianalytical approach, allows selective and quantitative analysis. The Mössbauer parameters and f-factors have been determined for many tin oxides, chlorides and sulfates. The f-factors are different from a compound to another and highly T-dependent which justify low temperature Mössbauer measurements. - The development of a low temperature CEMS detector to permit low temperature and non-destructive surface analysis. The detector operation has been optimized for various gases between 41 and 300 K. - The 2-years outdoor exposure in an urban site including CuSn9, CuSn3Zn9 bronzes, CuZn33 brass and pure metals. The corrosion and runoff rates have been investigated as well as the role of alloying elements in corrosion process. [less ▲]

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See detailCorrosion behaviour of different hot rolled steels
Perez, F. J.; Martinez, L.; Hierro, M. P. et al

in Corrosion Science (2006), 48(2), 472-480

The oxidation-corrosion behaviour of hot rolled alloys was examined by electrochemical impedance spectroscopy. The corrosion behaviour of the non-oxidised alloys was first determined in order to have a ... [more ▼]

The oxidation-corrosion behaviour of hot rolled alloys was examined by electrochemical impedance spectroscopy. The corrosion behaviour of the non-oxidised alloys was first determined in order to have a reference behaviour. Then, each alloy was oxidised for 1 and 3 days at 650 degrees C in air and its corrosion behaviour was also determined. For all the alloys, Fe2O3 was formed at the scale-gas interface. However, the Fe2O3 crystallographic structures varied as a function of the alloy composition. Differences in the corrosion behaviour are due to the thickness, the microstructure and the porosity of the scale. The new graphite chromium iron alloy (Hi-Cr + C) have an oxidation-corrosion behaviour close to the indefinite chill double paired (ICDP) one and is therefore thought to be a good candidate to replace the ICPD alloy. In the case of the high speed steel (HSS) alloy, the oxidation-corrosion kinetics are too slow to prevent sticking problems. The Co addition decreases the corrosion-oxidation rates for the non-oxidised and oxidised samples but this effect is limited in time. (C) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailCorrosion des Matériaux métalliques
Lecomte-Beckers, Jacqueline ULg

Learning material (1995)

Aspect phénoménologique des attaques de corrosion. - Thermodynamique des réactions de corrosion. - Surfaces et interfaces. - Vitesse des réactions de corrosion. - Passivité des métaux. - Mécanismes de ... [more ▼]

Aspect phénoménologique des attaques de corrosion. - Thermodynamique des réactions de corrosion. - Surfaces et interfaces. - Vitesse des réactions de corrosion. - Passivité des métaux. - Mécanismes de corrosion (piles - piqûres - corrosion galvanique). - Oxydation et corrosion atmosphérique. - Corrosion à haute température. - Corrosion-érosion - Corrosion microbiologique. - Fissuration sous contrainte. - Protection contre la corrosion; critères de choix. - Importance de la corrosion dans l'industrie - cas particuliers. [less ▲]

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See detailCorrosion patina or intentional patina: Contribution of non-destructive analyses to the surface study of copper based archaeological objects
Mathis, François ULg; Descamps, Sophie; Delange, Elisabeth et al

in Dillmann, Philippe; Piccardo, Paolo; Matthiesen, H. (Eds.) et al Corrosion of metallic heritage artefacts: Investigation, conservation and prediction of long term behaviour (EFC 48) (2007)

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See detailCorrosion studies of different ferrous alloys for rolling cylinders
Martinez, L.; Gomez, C.; Lecomte-Beckers, Jacqueline ULg et al

in Materials & Design (2007), 28(1), 196-202

The aim of this work is to study the corrosion behaviour in chloride media of a high chromium iron alloy. The influence of the surface finishing as well as the heat treatment was analysed. The technique ... [more ▼]

The aim of this work is to study the corrosion behaviour in chloride media of a high chromium iron alloy. The influence of the surface finishing as well as the heat treatment was analysed. The technique employed for measuring the corrosion behaviour was the Electrochemical Impedance Spectroscopy, an electrochemical technique that allows the observation not only of the corrosion rates but also the changes on the corrosion mechanism of the alloy. The results showed that it is worth performing a double tempering and a having smoother surface finishing only for long exposure periods. A comparison between different oxidising conditions was also performed simulating the life in service of the hot rolling cylinders and revealed an increase in the protective properties as the oxidising time increased due to the chromium present on the alloy (18%). (c) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailCorruption
Flore, Daniel ULg

in Les infractions contre les biens (2007)

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See detailCorsican seagrass detritus: An opportune shelter or a copepod Eldorado?
Mascart, Thibaud ULg; Lepoint, Gilles ULg; Remy, François ULg et al

Poster (2014, March 07)

Seagrass ecosystems are extensive beds of marine flowering plants bordering tropical and temperate coastal regions. They play an important role in maintaining biological productivity and bio-geochemical ... [more ▼]

Seagrass ecosystems are extensive beds of marine flowering plants bordering tropical and temperate coastal regions. They play an important role in maintaining biological productivity and bio-geochemical cycles in the sea and support higher diversity and abundance of fauna in comparison to adjacent non-vegetated areas. The seagrass meadow primary production can be directly consumed through herbivory but the majority of the plant material falls on the sea floor during the autumnal leaf senescence. The leaf litter then degrades within the meadow or accumulates with other micro- and macrophytodetritus to form detritus accumulations on the adjacent non-vegetated sand patches. These exported accumulations are quite dynamic in relation to seafloor geomorphology and local hydrodynamics. Thus, the detritus accumulations are an easily disturbed ephemeral environment with one large influx a year. Consequently the physico-chemical characteristics can change very fast and impact the sheltering capacity and food supply present. Nonetheless, fishes, macrofauna and meiofauna are omnipresent throughout the year. In our study site along the shore of N-W Corsica, Posidonia oceanica seagrass meadows are characterised by substantial detritus accumulations. The present study aimed to analyse the biodiversity of the copepod species communities (Crustacea, Copepoda) in those detritus accumulations. The results showed that the copepod detritus community consisted of a mixture of species that are also found in adjacent habitats (seagrass meadow, sediment, epilithic habitats, water column). Each adjacent habitat is characterised by organisms that are morphologically adapted to the specific features of that habitat. The majority of copepods are epiphytic (order Harpacticoida), that occur typically on seagrass leaves and macroalgae. Other species are planktonic (orders Cyclopoida and Calanoida) and some were benthic (order Harpacticoida), known from the nearby sediment. A minority of the copepod community were parasitic on fish or invertebrate (order Siphonostomatoida). In order to clarify their origin, we assume that passive transport by currents plays a significant role next to the active migration from the anoxic sediments under the detritus. For sure they also reproduce within the detritus packages as we found many nauplii, copepodites and gravid females. The above mentioned suggestions cannot explain such high density of copepods by themselves. Other attraction mechanisms are needed to explain the important amount of planktonic and epiphytic species with good swimming ability, such as higher food accessibility. In the detritus no plant-defence mechanisms are present anymore and a lot of micro-organisms and thus potential food sources are present. Furthermore, the dense detritus package provides shelter and protection from potential predators. Subsequently we may consider the detritus accumulations as a copepod species-specific opportune Eldorado for sheltering, nursing and feeding. [less ▲]

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See detailCoRTECS – Community and Region Training for Emergency and Crisis Situation
Brunet, Sébastien ULg; Caps, Cindy; Claus, Tine et al

Report (2006)

Chaque année, la Direction Générale Centre de Crise (DGCC) organise une recherche scientifique d’une durée de 12 mois sur un thème précis en rapport avec ses missions1. Cette année, le thème de la ... [more ▼]

Chaque année, la Direction Générale Centre de Crise (DGCC) organise une recherche scientifique d’une durée de 12 mois sur un thème précis en rapport avec ses missions1. Cette année, le thème de la recherche est l’implication des Communautés et des Régions dans la planification d’urgence et la gestion de crise (CoRTECS Communities and Regions Training for Emergency and Crisis Situation). Cette recherche est menée par l’équipe SPIRAL de l’Université de Liège. [less ▲]

Detailed reference viewed: 33 (4 ULg)
Peer Reviewed
See detailCortex
Pfister, Max; Valenti, Gianluca ULg

in Lessico Etimologico Italiano (in press)

Detailed reference viewed: 3 (1 ULg)