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See detailNew data on the palaeobiogeography of Early Jurassic marine reptiles: the Toarcian ichthyosaur fauna of the Vocontian Basin (SE France)
Fischer, Valentin ULg; Guiomar, Myette; Godefroit, Pascal

in Neues Jahrbuch für Geologie und Palaontologie. Abhandlungen (2011), 261(1), 111-127

The Vocontian Basin (SE France) was formed along the northwestern border of Tethys during Mesozoic times. Mainly known for its rich ammonite fauna, this basin has also yielded several Lower Jurassic ... [more ▼]

The Vocontian Basin (SE France) was formed along the northwestern border of Tethys during Mesozoic times. Mainly known for its rich ammonite fauna, this basin has also yielded several Lower Jurassic ichthyosaurs. The specimens discussed here were discovered in lower Toarcian limestone and marl successions in the vicinity of Digne-les-Bains, High-Provence Alps. The best-preserved specimen is identified as Suevoleviathan sp., a rare taxon previously reported only in southern Germany. Along with this specimen, premaxillae and paddle elements of Eurhinosaurus sp. and probable Stenopterygiidae centra were found in neighbouring localities. These specimens were preserved thanks to the deposition of soft anoxic marls or calcarodetritic sediments, coeval with other anoxic shales in Europe (the Toarcian Oceanic Anoxic Event or T-OAE), which allows faunal comparisons between these basins. The localities from the Vocontian Basin are closer to the Tethys than any other sites where identifiable Toarcian ichthyosaurs have been found in Europe. Nevertheless, the Vocontian ichthyosaur assemblage is strikingly similar to those in other basins across Europe. It suggests that Toarcian ichthyosaurs had a wide palaeobiogeographical distribution, reflecting their anatomical adaptations as highly mobile swimmers. [less ▲]

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See detailNew data on the palaeobiogeography of Toarcian (Lower Jurassic) ichthyosaurs
Fischer, Valentin ULg; Guiomar, Myette; Godefroit, Pascal

Conference (2009, February)

The Vocontian Basin of SE France was formed along the northwestern border of Tethys during Mesozoic times. Mainly known for its rich ammonite fauna, this basin has also yielded Jurassic and Cretaceous ... [more ▼]

The Vocontian Basin of SE France was formed along the northwestern border of Tethys during Mesozoic times. Mainly known for its rich ammonite fauna, this basin has also yielded Jurassic and Cretaceous ichthyosaur fossils. The specimens discussed here were discovered in lower Toarcian limestone and marl successions in the vicinity of Digne-les-Bains, High-Provence Alps. One of best-preserved specimens is identified as Suevoleviathan sp., a relatively rare genus previously reported only in the German basins. The specimen is fairly complete but crushed and embedded in limestone from the Falciferum ammonite zone. Because the skull is too damaged to see bone sutures, assignation to this genus is mostly based on fin and coracoid morphology. Along with this specimen, a premaxilla and paddle elements of Eurhinosaurus longirostris and possible Stenopterygiidae centra were found in nearby black marls of the Exaratum ammonite subzone (Falciferum zone, Lower Toarcian; see Floquet et al., 2003 for a detailed stratigraphy). These soft marls were deposited in anoxic waters and are coeval with the Posidonia shales of southwest Germany, the Jet rock formation of northeast England and Grandcourt shales of Luxembourg, which allows faunal comparisons between these basins. The localities from the Vocontian Basin are closer to the Tethys than other sites where Toarcian identifiable ichthyosaurs have been found in Europe. Nevertheless all identifiable specimens from the Vocontian Basin are also identified in other basins across Europe. It suggests that Toarcian ichthyosaurs had wide palaeogeographical distributions and were highly mobile swimmers, perfectly adapted to open marine environments. [less ▲]

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See detailNew data on the recent history of the littoral forests of southern Cameroon: an insight into the role of historical human disturbances on the current forest composition
Biwolé, Achille ULg; Morin-Rivat, Julie ULg; Fayolle, Adeline ULg et al

in Plant Ecology and Evolution (2015), 148(1), 19-28

Background and aims – Prior to European colonisation of Central Africa, human populations were dispersed through the forests, where they practiced slash-and-burn cultivation. From the 19th century they ... [more ▼]

Background and aims – Prior to European colonisation of Central Africa, human populations were dispersed through the forests, where they practiced slash-and-burn cultivation. From the 19th century they were progressively concentrated in villages along roads, leaving large areas of forest derelict. In south-western Cameroon, and elsewhere in Central Africa, forest canopy is dominated by long-lived lightdemanding tree species, suggesting a possible role of human disturbance. The aim of this study was to bring new insights into the possible effect of historical human disturbances in terms of timing and spatial extent on the current forest composition. Location – Wet evergreen littoral forest in south-western Cameroon. Methods and key results – A combined vegetation sampling and archaeobotanical survey were conducted. Potsherds, oil-palm endocarps, and charcoal were found throughout the study area, suggesting generalised human occupation and anthropogenic fire. Human occupancy occurred in two periods: between 2200 and 1500 BP, and, more recently, beginning three centuries ago. High frequency of fire and the presence of Elaeis guineensis both dated recently (between 260 and 145 BP) suggest slash-and-burn shifting cultivation practices. These human-induced disturbances may coincide with the age of the current emergent lightdemanding species, the age of which can be estimated around 200 years, or with the phases of drying climate recorded in the Central African forest in the early 18th century. Conclusions – These results support the idea that historical human disturbances are one of the major factors that shaped the current forest composition in Central Africa. [less ▲]

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See detailNew data on the Sambre-et-Meuse Band
Steemans, Philippe ULg

Conference (1995)

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See detailNew data on the transmission of pigeon circovirus
Duchatel, Jean-Pierre ULg; Todd, Danny; Curry, J. et al

in Veterinary Record : Journal of the British Veterinary Association (2005), 157

Nineteen racing pigeons aged from one to five years were examined postmortem. PCR tests showed that the spleens of 16 of them were positive for pigeon circovirus, the livers of six were positive, and ... [more ▼]

Nineteen racing pigeons aged from one to five years were examined postmortem. PCR tests showed that the spleens of 16 of them were positive for pigeon circovirus, the livers of six were positive, and blood from one of them was positive for the virus. Five of 44 embryos in embryonated eggs collected from three lofts were positive by PCR, but swabs taken from the crops of 64 adult birds which were feeding one- to 10-day-old squabs in these three lofts were negative for the viral DNA. [less ▲]

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See detailA new database of astrophysical interest
Biémont, Emile ULg; Palmeri, P.; Quinet, Pascal ULg

in Astrophysics & Space Science (1999), 269-270

Detailed reference viewed: 6 (1 ULg)
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See detailNew decentralisation in the Congo
Kabamba, Bob ULg

in Courier (The) (2007), juillet-aoüt(n°1), 52-53

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See detailA new decomposition method and direct criterion for transient stability assessment of large-scale electric power systems
Xue, Yusheng; Van Cutsem, Thierry ULg; Ribbens-Pavella, Mania

in Proc. IMACS Symp. on Modelling and Simulation for Control of Lumped and Distributed Parameter Systems (1986)

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See detailA new definition and a lectotypification of the genus Cooksonia Lang 1937
Gonez, Paul ULg; Gerrienne, Philippe ULg

in International Journal of Plant Sciences (2010), 171

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See detailNew descriptor for skeletons of planar shapes : the Calypter
Pirard, Eric ULg; Nivart, Jean-François

(1994)

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See detailNew design antenna Gsm900/1800/Umts for sensor networks on High voltage line
Adegbola, Kayode Romaric Adebiyi ULg; Hajraoui

in Congrès méditerranéen des Télécommunications: CMT, Fès 22-24 Mars 2012 (2012, March 24)

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See detailA new design method for new processes in liquid-liquid extraction
Buchbender, Florian; Adinata, Donni; Pfennig, Andreas ULg

in 19th International Solvent Extraction Conference, ISEC, Berlin 25-29 septembre 2011 (2011)

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See detailA new design method for stirred liquidliquid extraction columns based on single-drop experiments
Buchbender, Florian; Pfennig, Andreas ULg

Conference (2011)

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See detailA new design model for the resistance of steel semi-compact cross-sections
Boissonnade, N.; Jaspart, Jean-Pierre ULg; Oerder, R. et al

in Proceedings of EUROSTEEL 2008 (2008)

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See detailA New Design of Equilibrator to Monitor Carbon Dioxide in Highly Dynamic and Turbid Environments
Frankignoulle, M.; Borges, Alberto ULg; Biondo, Renzo ULg

in Water Research (2001), 35(5), 1344-7

A new design of equilibrator for carbon dioxide monitoring in natural waters is described. It consists in a vertical tube filled with marbles through which water is flowing while equilibrating with a ... [more ▼]

A new design of equilibrator for carbon dioxide monitoring in natural waters is described. It consists in a vertical tube filled with marbles through which water is flowing while equilibrating with a closed air circuit. It offers several advantages compared with classical equilibrators, among which is a fast response time (half-life constant approximately 30 s) and the potential to work in very turbid water. The proposed equilibrator is of particular interest to monitor carbon dioxide in coastal ecosystems, such as estuaries, which are known to be turbid and highly dynamic. Two performance tests and some field results are presented to illustrate the efficiency of the proposed system. [less ▲]

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See detailA new design of organic radical batteries (ORBs): carbon nanotube buckypaper electrode functionalized by electrografting
Aqil, Abdelhafid ULg; Vlad, Alexandru; Piedboeuf, Marie-Laure ULg et al

in Chemical Communications (2015), 51(45), 9301-9304

A novel hybridmaterial displaying a fast and reversible charge storage capability is prepared by electrografting of an alkoxyamine-bearing acrylate onto a carbon nanotube buckypaper, followed by the quan ... [more ▼]

A novel hybridmaterial displaying a fast and reversible charge storage capability is prepared by electrografting of an alkoxyamine-bearing acrylate onto a carbon nanotube buckypaper, followed by the quan- titative generation of an electroactive polynitroxide. [less ▲]

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See detailNew Development in Calculation Methods, in Basic Characteristics of low-cost houses in order to reduce the energy consumption for heating - Link programme - Coordination and consequences for the architectural design (synthesis)
Dupagne, Albert ULg; Hauglustaine, Jean-Marie ULg; Knowland, J. B. et al

Report (1984)

A previous research work developed within the frame of the first European R-D Energy Programme has led to the production of a manual design method mainly oriented to the design of low cost, low energy ... [more ▼]

A previous research work developed within the frame of the first European R-D Energy Programme has led to the production of a manual design method mainly oriented to the design of low cost, low energy houses. From the beginning, we know that this method remains uncompleted but its lacunas became particulary obvious and combersome when trying to apply it to the real design of 25 houses on a real ground. Therefore we devoted some research efforts to improve the manual method specially in calculation methods. These efforts do not intend to be definite answers to the difficult points we put in light. Some are a first proposal for solving specific problems like intergrating dynamic-thermal behaviour in the design of buildings. Others are particular issues of a continuous work developed in the Building Physics Laboratory for years like equivalent degree-day methods. The last group contents more specific points like shading factor calculation. Some has already been introduced in the new issue of the design methodology. Others have been used during the design of the houses but they need more work to become practical tools that can be introduced in the methodology. And some are kept for further development. In appearance, the present book is just the gathering of disjoined chapters, but the work is not as incoherent as it seems. All the methods have at least one thing in common: the desing orientation of their use. [less ▲]

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See detailNew developments for an efficient solution of the discrete material topology optimization of composite structures
Duysinx, Pierre ULg; Gao, Tong; Zhang, Weihong et al

in Faester, S.; Juul Jensen, D.; Ralph, B. (Eds.) et al Composite materials for structural performance: towards the higher limits (2011, September 05)

Optimal design of composite structures can be formulated as an optimal selection of material in a list of different laminates. Based on the seminal work by Stegmann and Lund (2005), the optimal problem ... [more ▼]

Optimal design of composite structures can be formulated as an optimal selection of material in a list of different laminates. Based on the seminal work by Stegmann and Lund (2005), the optimal problem can be stated as a topology optimization problem with multiple materials. The research work carries out a large investigation of different interpolation and penalization schemes for the optimal material selection problem. Besides the classical Design Material Optimization (DMO) scheme and the recent Shape Function with Penalization (SFP) scheme by Bruyneel (2011), the research introduces a generalization of the SFP approach using a bi-value coding parameterization (BCP) (Gao, Zhang, and Duysinx, 2011) The paper provides a comparison of the different parameterization approaches. It also proposes alternative penalization schemes and it investigates the effect of the power penalization. Finally, we discuss the solution aspects in the perspective of solving large-scale industrial applications. The conclusions are illustrated by a numerical application for the compliance maximization of an in-plane composite ply. [less ▲]

Detailed reference viewed: 94 (4 ULg)