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See detailL'éclipse totale de Lune du 28-29 janvier 1888
Folie, François ULiege

in Bulletins de l'Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique (1888), 3e série, t. 15(2), 347-350

During the moon total eclipse of January 28th and 29th, 1888, preliminary calculations of occultation of a large number of stars have been made by one hundred and twenty different observatories. The ... [more ▼]

During the moon total eclipse of January 28th and 29th, 1888, preliminary calculations of occultation of a large number of stars have been made by one hundred and twenty different observatories. The author summarizes some observations made in Brussels and Liège. [less ▲]

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See detailEclipse totale du 11 août 1999 et évolution de la basse ionosphère
Delcourt, J. J.; Jodogne, J.-C.; Biémont, Emile ULiege

in Ciel et Terre (2000), 116(1), 6-7

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See detail"Eclipses. Le refus de l'image"
Belloi, Livio ULiege

Conference (2011, January 28)

En repartant d'un texte programmatique signé, dans le courant des années 20, par le peintre Fernand Léger, cette communication entend aborder la question du refus dans le champ du cinéma d'avant-garde et ... [more ▼]

En repartant d'un texte programmatique signé, dans le courant des années 20, par le peintre Fernand Léger, cette communication entend aborder la question du refus dans le champ du cinéma d'avant-garde et/ou expérimental. Une attention particulière est consacrée au "flicker film" (notamment au travers d'une œuvre méconnue de Norman McLaren), ainsi qu'au film dont, paradoxalement, toute image aurait disparu (Gustav Deutsch). Chemin faisant, des connexions sont marquées avec certaines expérimentations menées dans le champ de la bande dessinée contemporaine et, en particulier, avec les travaux de l'OUBAPO (Ouvroir de Bande dessinée Potentielle - notamment les œuvres de François Ayroles et de Jochen Gerner). [less ▲]

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See detailEclipsing Am binary systems in the SuperWASP survey
Smalley, B.; Southworth, J.; Pintado, O. I. et al

in Astronomy and Astrophysics (2014), 564

The results of a search for eclipsing Am star binaries using photometry from the SuperWASP survey are presented. The light curves of 1742 Am stars fainter than V = 8.0 were analysed for the presence of ... [more ▼]

The results of a search for eclipsing Am star binaries using photometry from the SuperWASP survey are presented. The light curves of 1742 Am stars fainter than V = 8.0 were analysed for the presence of eclipses. A total of 70 stars were found to exhibit eclipses, with 66 having sufficient observations to enable orbital periods to be determined and 28 of which are newly identified eclipsing systems. Also presented are spectroscopic orbits for 5 of the systems. The number of systems and the period distribution is found to be consistent with that identified in previous radial velocity surveys of "classical" Am stars. [less ▲]

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See detailEclipsing Ap Stars
Renson, Pierre ULiege; Mathys, G.

in Information Bulletin on Variable Stars (1984), 2522

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See detailThe eclipsing binary system HD208496
van Hamme, W.; Manfroid, Jean ULiege

in Astronomy and Astrophysics. Supplement Series (1988), 74

New photoelectric observations of the 6th magnitude suspected eclipsing binary system HD 208496 are presented. A Wilson-Devinney light curve solution reveals a detached system with components approaching ... [more ▼]

New photoelectric observations of the 6th magnitude suspected eclipsing binary system HD 208496 are presented. A Wilson-Devinney light curve solution reveals a detached system with components approaching the terminal age main sequence. The orbital period is suspected to be variable. [less ▲]

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See detailThe eclipsing variable HR 2800
Sterken, C.; Hensberge, H.; Vander Linden, D. et al

in Astronomy and Astrophysics. Supplement Series (1985), 60

The eclipsing variable star HR 2800 (HD 57593) is characterized on the basis of uvby photoelectric photometry and 20-A/mm coude spectrograph plates obtained at ESO and at SAOO during the period 1975-1983 ... [more ▼]

The eclipsing variable star HR 2800 (HD 57593) is characterized on the basis of uvby photoelectric photometry and 20-A/mm coude spectrograph plates obtained at ESO and at SAOO during the period 1975-1983. The data are presented graphically and used to estimate the ephemeris parameters of the eclipses, which have a depth in V of 0.25 mag, as time of minimum = JD 2,444,629.7797 + or - 0.010 and period = 24.6033 + or - 0.0003 days. HR 2800 is classified as a bright B-star Algol-type variable. [less ▲]

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See detailEcluse à Grand gabarit pour la Jonction "Seine-Nord Europe
Rigo, Philippe ULiege

Report (2004)

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See detailEcluse d’Arzal – Etude d’avant-projet (APS),
Rigo, Philippe ULiege; Herbillon, V.; Popescu, C. et al

Report (2009)

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See detailL’ECMO (ExtraCorporeal Membrane Oxygenation) aux soins intensifs : intérêt chez le patient en choc cardiogénique réfractaire, en hypoxémie réfractaire ou en arrêt cardiaque.
Massion, Paul ULiege; Ledoux, Didier ULiege; Piret, Sonia et al

in Revue Médicale de Liège (2010), 65

ExtraCorporeal Membrane Oxygenation (ECMO) is a cardiopulmonary assistance device able to support patients in cardiac arrest, refractory cardiogenic shock or refractory hypoxemia otherwise sentenced to ... [more ▼]

ExtraCorporeal Membrane Oxygenation (ECMO) is a cardiopulmonary assistance device able to support patients in cardiac arrest, refractory cardiogenic shock or refractory hypoxemia otherwise sentenced to death. Recent technical progresses, early indication decision, bedside multidisciplinary implant, specific complications screening and echocardiographic weaning testing are crucial points to allow success of this exceptional technique. [less ▲]

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See detailL'ECMO, Témoignage de deux infirmiers
KOCH, Jean-Noël ULiege; BODSON, Sébastien ULiege

Conference (2014, November 22)

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See detailEco-behavioural profile of a long-tailed macaque (Macaca fascicularis) population in a human-managed area of Bangkok (Thailand)
Brotcorne, Fany ULiege

Master of advanced studies dissertation (2008)

The present study investigated several aspects of the behavioural ecology of a small long-tailed macaque (Macaca fascicularis) population living in close association with humans in Bangkok (Thailand). The ... [more ▼]

The present study investigated several aspects of the behavioural ecology of a small long-tailed macaque (Macaca fascicularis) population living in close association with humans in Bangkok (Thailand). The aim of this study was first to establish the eco-behavioural profile of this population and then to document the impacts of the human factor (human presence and food provisioning) on this profile. We have collected, during four months, data on habitat, demography, activity budget, aggressive behaviours and diet. The studied population exploited a small home range of 18 hectares in an urban habitat poor in spatial and dietary resources. The rare patches of altered mangrove forest present in the home range constituted essential resources zones widely exploited by macaques. The sizes of two groups constituting the population were relatively large and the sex ratios strongly skewed towards females. A high index of reproduction indicated a good capacity of reproduction within the population. The activity budget was characteristic of provisioned primate groups with a high proportion of time spent inactive; few time devoted to feeding activities and foraging, and a lot of time involved in social activities. On the other hand, proportion of agonistic behaviours was rather low. Contrary to our predictions, the intensity of aggressive interactions was influenced neither by food provisioning, nor by human presence which, on the other hand, increased slightly the frequency of these interactions. Lastly, the diet of this population was constituted to a large extent by human provisioned food which differed from wild food, found in mangrove forest, in abundance and high energy values. From these preliminary results, we could assess the impact of human factor as important. All studied aspects of behaviour and ecology of this population were consistent with other provisioned primate groups and differed from wild groups; except results on aggressive behaviours which required consequently a thorough research on social structure of the study groups. These results have allowed us to identify various potential threats for the long term survival of this population. The probability of continuous destruction of mangrove forest and the consecutive risk of isolation of the population probably represent the main threats. Risks for health of these macaques, due to ecological and dietary conditions, also require considerations in terms of management. We propose as management recommendations, first to preserve the rest of mangrove forest present in the home range and ideally to initiate the reforestation of these zones and second, to control the quantity and the type of food provisioned daily to macaques. Thereby, this study supports the idea that the conservation and the management of urban monkey populations facing conflict with human s, such as this studied in the present research, is important, notably to decrease the future risk of extinction. [less ▲]

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See detailEco-conception : exemples d'écoquartiers
Marique, Anne-Françoise ULiege

Conference (2009, May 15)

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See detailEco-efficacité et éco-efficience: un nouveau paradigme en construction(s)
Courard, Luc ULiege

Conference (2012, November 20)

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See detailEco-efficiency methodology of Hybrid Electric Vehicle based on multidisciplinary multi-objective optimization
Nzisabira, Jonathan; Louvigny, Yannick ULiege; Christiaens, Sébastien et al

in Proceeding of the 8th World Congress on Structural and Multidisciplinary Optimization (2009, June 01)

The eco-efficiency concept of clean propulsion vehicles aims at is simultaneously reducing the fuel consumption and environment pollutants impact (Eco-score) without decreasing the vehicle performances ... [more ▼]

The eco-efficiency concept of clean propulsion vehicles aims at is simultaneously reducing the fuel consumption and environment pollutants impact (Eco-score) without decreasing the vehicle performances and other user satisfaction criteria. Based on a simulation model in ADVISOR, one can evaluate the performances, the emissions and then the Ecoscore and the User Satisfaction for different driving scenarios. To establish a rationale methodology for conducting the eco-efficiency design of electric and hybrid vehicles, we adopt a multidisciplinary optimization approach while minimizing / maximizing both Ecoscore and User satisfaction objective functions. The proposed approach is then illustrated on the case study of the comparison of different mild parallel hybrid buses (hybrid electric vehicle (HEV) and hybrid hydraulic vehicle (HHV) by highlighting the effect of different energy storage systems (batteries, ultra capacitors, hydraulic system), mechanical and electric components sizes upon the optimized hybrid design. The optimization results show that the hybrid electric buses using ultra capacitors have almost the same performances as those using batteries, while the HHV technology can compete with HEV because of the hydraulic components low cost and recyclability if possibly using of water as motor/pump fluid. [less ▲]

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See detailEco-efficiency optimization of Hybrid Electric Vehicle based on response surface method and genetic algorithm
Nzisabira, Jonathan; Louvigny, Yannick ULiege; Duysinx, Pierre ULiege

in Proceedings of EET-2008 European Ele-Drive Conference and International Advanced Mobility Forum (2008, March)

The electric vehicles (EV) and sometimes the hybrid electric vehicle (HEV) technologies are environmentally very efficient but can not succeed on the market because of a smaller ability to satisfy ... [more ▼]

The electric vehicles (EV) and sometimes the hybrid electric vehicle (HEV) technologies are environmentally very efficient but can not succeed on the market because of a smaller ability to satisfy customer’s requirements. Comparison of clean technologies in automotive and transportation systems has been measured using different analysis tools such as LCA (life cycle analysis). However, these instruments never account for the user’s satisfaction which partly explains the market acceptance problems. The Eco efficiency is a global index which accounts for both environment impacts and user satisfaction. The main objective of vehicle powertrain hybridization is to improve the fuel consumption and environment pollutants impact (Eco-score) without decreasing the vehicle performances and other user satisfaction criteria. The objective of this study is to minimize the Eco-score indicator of HEV with respect to the user satisfaction criteria. The approach is formulated as a multidisciplinary optimization problem. At first the EV or HEV are modeled and simulated using ADVISOR (advanced vehicle simulator) with respect to several driving situations. Then emissions can be determined and the Ecoscore indicator can be calculated. User Satisfaction can be evaluated based on performance criteria extracted from ADVISOR simulation and on simple evaluation tools relying on the state-of-the art of technological information for safety, reliability and daily cost. In this study the design problem is stated as follows: select mechanical and electric components (like engine, motor and battery sizes) to minimize the Ecoscore indicator and to maximize user satisfaction criteria subject to catalogue constraints on the choice of the components. The approach is illustrated on applications dealing with parallel hybrid electric vehicles. [less ▲]

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See detailEco-ethological aspects of two natural hybrids involving Abramis brama (L.), of the River Meuse basin (Belgium) and implications in ecosystem management.
Nzau Matondo, Billy ULiege; Ovidio, Michaël ULiege; Philippart, Jean-Claude ULiege et al

Conference (2009, September)

Eco-ethology as expressed in migration patterns, hybridisation level, growth rates in river conditions, and reproductive behaviour in a controlled environment were investigated in natural common bream ... [more ▼]

Eco-ethology as expressed in migration patterns, hybridisation level, growth rates in river conditions, and reproductive behaviour in a controlled environment were investigated in natural common bream Abramis brama × roach Rutilus rutilus and common bream × silver bream Blicca bjoerkna hybrids. From 2001 to 2003, hybrids and parental species were captured in a fish pass trap at the Lixhe dam on the Belgian Meuse River during their reproductive migration. The fish pass was checked 3 days a week and the water temperature was recorded hourly. The results showed that these hybrids were less frequent but they had migrated during the same period and in the same environmental conditions as the parental species. Scale readings showed that the growth of hybrids was intermediate between the two parent species’ growth. In controlled environments, the female hybrid mated with one to two males, including male hybrids, in reproductive experiments between hybrids; they also mated with male hybrid and male roach or male silver bream, but without the male common bream in reproductive experiments with hybrids mixed with parental species males, in a succession of spawning episodes recognised in parental species. Aggressive and territorial acts were observed among the males of these hybrids in a territory including a spawning substrate. This study has proven that these natural hybrids are eco-ethologically viable. For the management of fish populations and aquatic environments, the hybridisation process can be considered an indicator of habitat degradation. This degradation can then be interrupted by preserving spawning sites, controlling the restocking and species introduction, restoring habitats, and preserving the obstruction of fish migration. [less ▲]

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See detailEco-ethological characteristics of two natural hybrids of Abramis brama (L.) from the River Meuse basin
Nzau Matondo, Billy ULiege; Ovidio, Michaël ULiege; Poncin, Pascal ULiege et al

in Environmental Biotechnology (2010), 6(2),

Eco-ethology as expressed in migration patterns, abundance level, growth rates in river conditions, and reproductive behaviour in a controlled environment were investigated in natural common bream x roach ... [more ▼]

Eco-ethology as expressed in migration patterns, abundance level, growth rates in river conditions, and reproductive behaviour in a controlled environment were investigated in natural common bream x roach and common bream x silver bream hybrids. From 2001 to 2003, hybrids and parental species were captured in a fish pass trap at the Lixhe dam on the Belgian Meuse river during their reproductive migration. The fish pass was checked 3 days a week and the water temperature was recorded hourly. The results showed that hybrids were less frequent but they had migrated during the same period and in the same environmental conditions as the parental species. Scale readings showed that the growth of hybrids was intermediate to the two parent species growth. In reproductive experiments between hybrids under controlled conditions, the female hybrid mated with one to two hybrid males. In reproductive experiments with hybrids mixed with parental species males, the female hybrid mated with male hybrid and male roach or male silver bream, but not with the male common bream. The succession of spawning episodes in hybrids were those recognised in parental species. Aggressive and territorial acts were observed among the males of these hybrids in a territory including a spawning substrate. This study has proven that the natural hybrids are eco-ethologically viable. [less ▲]

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See detailÉco-éthologie d’une population de vipères péliades (Vipera b. berus L.) dans une région de bocage du sud-ouest de la Belgique
Graitson, Eric ULiege

in Bulletin de la Société Herpétologique de France (2008), 128

the preference of adders for different linear elements of the ‘bocage’, a farmland landscape crisscrossed by hedges, was studied during 2.5 years in south-West Belgium. Most individuals occurred in South ... [more ▼]

the preference of adders for different linear elements of the ‘bocage’, a farmland landscape crisscrossed by hedges, was studied during 2.5 years in south-West Belgium. Most individuals occurred in South-facing woody hedges between the autumn and the beginning of spring. During the mating period, by contrast, most individuals tended to shift of habitat and favoured 1 to 2 m wide grassy hedges with a limited shrub cover and a north-south orientation. Mating females especially favoured this latter habitat, probably because of their specific micro-climatic conditions, including a higher insulation. A few individuals, however, remained in the same habitat all year round. The identification of individuals, which was performed on the basis of features including body and head color patterns, but not on individual clipping, proved to be difficult owing to the high density of individuals. Linear elements in the form of grassy hedges, not very space-consuming, can shelter very high densities of snakes. in the context of a sharp decrease of the bocage landscape, the conservation of common European vipers relies on the maintenance of such linear landscape elements as grassy and shrubby hedges, which can be enhanced by the implementation of recent measures aiming at restoring extensive agricultural systems. [less ▲]

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See detailEco-éthologie de la population de bonobos récemment découverte dans l’ouest de la République Démographique du Congo
Serckx, Adeline ULiege; Huynen, Marie-Claude ULiege; Beudels-Jamar, Roseline

Conference (2009)

The bonobo, Pan paniscus, an endemic primate of the DRC, forms with the chimpanzee, Pan troglodytes, the pair of species closest to humans. Classified as “Endangered” by the IUCN, it’s seriously ... [more ▼]

The bonobo, Pan paniscus, an endemic primate of the DRC, forms with the chimpanzee, Pan troglodytes, the pair of species closest to humans. Classified as “Endangered” by the IUCN, it’s seriously threatened by the degradation of the forests. Only the creation of protected areas large enough and properly managed can improve its status but requires a good knowledge of the eco-ethology of the local populations. Our project will focus on studying a bonobo population recently discovered in the region of the Lake Tumba, in the west of the DRC. It is characterized by densities never encountered elsewhere, and a preliminary study has revealed significant differences in habitat and food resources in comparison to these of eastern populations. We will contribute to a recently established WWF conservation program by gathering eco-ethological data on bonobos, data that will allow identifying areas to protect, their boundaries and management measures to implement. To do this, we will study the diet of bonobos via direct and indirect observations of their behavior. We will also study the party size and its composition and identify underlying environmental factors. We will assess the bonobos’ home range size and pattern of displacement, which we will correlate with the abundance of food resources to determine whether there is a pattern of occupation of time and space specific to this population. [less ▲]

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