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See detailEclipse -- D. Allen et C. Allen
Manfroid, Jean ULg

in Ciel et Terre (1989), 105

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See detailL'éclipse de Paques
Nazé, Yaël ULg

Article for general public (2015)

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See detailEclipse of the B3V companion and flaring of emission lines in V838 Monocerotis
Munari, U.; Corradi, R. L. M.; Henden, A. et al

in Astronomy and Astrophysics (2007), 474

After four years during which only the spectacular light echo was showing continuous and rapid evolution while the central star was nearly constant, in autumn 2006 V838 Mon began a sequence of events ... [more ▼]

After four years during which only the spectacular light echo was showing continuous and rapid evolution while the central star was nearly constant, in autumn 2006 V838 Mon began a sequence of events which profoundly altered its spectroscopic and photometric behavior: (a) an eclipse of the B3V companion, characterized by the disappearance and reappearance of the B3V companion from optical spectra, and an eclipse-like lightcurve of ~70 day duration and Δ B ˜ 1.15 mag, Δ V ˜ 0.55 mag, Δ R[SUB]C[/SUB] ˜ 0.10 mag maximum depth; (b) a large increase in intensity of the [FeII] and FeII emission lines, and the appearance in emission for the first time since the 2002 outburst of Hα and higher Balmer series lines. While the [FeII] and FeII lines maintained a very sharp and unresolved profile, the Hα developed into a wide and structured profile, characterized by a sharp central reversal at the same velocity as one of the CO radio emission components. The disappearance of the B3V companion is equally well explained by a grazing eclipse from the outbursting L-type supergiant or by an eclipse from a dust cloud characterized by E[SUB]B-V[/SUB]=0.55 and R[SUB]V[/SUB]=3.1. We believe the flaring of the emission lines occurred at a similar time as the B3V eclipse just by chance. Tables 2-4 are only available in electronic form at http://www.aanda.org Based on observations made with the Asiago 1.82 m of the INAF Astronomical Observatory of Padova, and with 4.2 m WHT and 2.5 m INT operated by the Isaac Newton Group of Telescopes, and with the 2.6 m NOT operated jointly by Denmark, Finland, Iceland, Norway, and Sweden, in the Spanish Observatorio del Roque de Los Muchachos of the Instituto de Astrofísica de Canarias. [less ▲]

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See detailL’éclipse partielle du 4 janvier
Manfroid, Jean ULg

in Ciel (Le) (2011), 73

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

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 ULg

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

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

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 ULg; 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 ULg

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 ULg

Report (2004)

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See detailEcluse d’Arzal – Etude d’avant-projet (APS),
Rigo, Philippe ULg; 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 ULg; Ledoux, Didier ULg; 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 ULg; BODSON, Sébastien ULg

Conference (2014, November 22)

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

Conference (2009, May 15)

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

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 ULg; 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 ULg; Duysinx, Pierre ULg

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 ULg; Ovidio, Michaël ULg; Philippart, Jean-Claude ULg 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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