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See detailA fresh look on the limit on ultralight axion-like particles from SN1987A
Payez, Alexandre ULg

in 10th Patras Workshop on Axions, WIMPs and WISPs (in press)

We revisit the limit on very light axion-like particles (ALPs) from the absence of gamma rays coincidental with the neutrino burst from SN1987A. We use updated supernova simulations, modern models for the ... [more ▼]

We revisit the limit on very light axion-like particles (ALPs) from the absence of gamma rays coincidental with the neutrino burst from SN1987A. We use updated supernova simulations, modern models for the magnetic field inside the Galaxy, and a Primakoff cross section which takes into account proton-degeneracy and mass-reduction effects. We finally give an updated exclusion plot for the electromagnetic coupling of sub-eV ALPs, comparing our new bound with other limits as well as with future ALP searches. [less ▲]

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See detailFresnel rhombs as achromatic phase shifters for infrared nulling interferometry
Mawet, D.; Hanot, Charles ULg; Lenaers, C. et al

in Optics Express (2007), 15

We propose a new family of achromatic phase shifters for infrared nulling interferometry. These key optical components can be seen as optimized Fresnel rhombs, using the total internal reflection ... [more ▼]

We propose a new family of achromatic phase shifters for infrared nulling interferometry. These key optical components can be seen as optimized Fresnel rhombs, using the total internal reflection phenomenon, modulated or not. The total internal reflection indeed comes with a phase shift between the polarization components of the incident light. We propose a solution to implement this vectorial phase shift between interferometer arms to provide the destructive interference process needed to disentangle highly contrasted objects from one another. We also show that, modulating the index transition at the total internal reflection interface allows compensating for the intrinsic material dispersion in order to make the subsequent phase shift achromatic over especially broad bands. The modulation can be induced by a thin film of a well-chosen material or a subwavelength grating whose structural parameters are thoroughly optimized. We present results from theoretical simulations! together with preliminary fabrication outcomes and measurements for a prototype in Zinc Selenide. [less ▲]

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See detailFresnel rhombs as achromatic phase shifters for infrared nulling interferometry: first experimental results
Hanot, Charles ULg; Mawet, D.; Loicq, Jerôme ULg et al

in Coulter, Daniel R (Ed.) "Techniques and Instrumentation for Detection of Exoplanets III" Proceedings of the SPIE, Volume 6693, Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series (2007, September 01)

One of the most critical units of nulling interferometers is the Achromatic Phase Shifter. The concept we propose here is based on optimized Fresnel rhombs, using the total internal reflection phenomenon ... [more ▼]

One of the most critical units of nulling interferometers is the Achromatic Phase Shifter. The concept we propose here is based on optimized Fresnel rhombs, using the total internal reflection phenomenon, modulated or not. The total internal reflection induces a phase shift between the polarization components of the incident light. We present the principles, the current status of the prototype manufacturing and testing operations, as well as preliminary experiments on a ZnSe Fresnel rhomb in the visible that have led to a first error source assessment study. Thanks to these first experimental results using a simple polarimeter arrangement, we have identified the bulk scattering as being the main error source. Fortunately, we have experimentally verified that the scattering can be mitigated using spatial filters and does not decrease the phase shifting capabilities of the ZnSe Fresnel rhomb. [less ▲]

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See detailFret ferroviaire : vue prospective
Arda, Yasemin ULg; Nondonfaz, Robert ULg

Article for general public (2009)

Livre blanc de la Commission Européenne. Faiblesses du transport ferroviaire de fret : interopérabilité, ferroutage

Detailed reference viewed: 34 (2 ULg)
See detailFreud
Rizzo, Rémy ULg

Scientific conference (2017, January 28)

Detailed reference viewed: 16 (1 ULg)
See detailFreud et Binswanger
Gyemant, Maria ULg

in Terquem, Sarah (Ed.) Dictionnaire Sigmund Freud (2014)

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See detailFreud et Brentano
Gyemant, Maria ULg

in Terquem, Sarah (Ed.) Dictionnaire Sigmund Freud (2014)

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See detailFreud et Brücke
Gyemant, Maria ULg

in Terquem, Sarah (Ed.) Dictionnaire Sigmund Freud (2014)

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See detailFreud et Hjelmslev : Métapsychologie et métalinguistique
Badir, Sémir ULg

in Arrivé, Michel; Normand, Claudine (Eds.) Linguistique et psychanalyse (2013)

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See detailFreud et Hjelmslev : Métapsychologie et métalinguistique
Badir, Sémir ULg

in Arrivé, Michel; Normand, Claudine (Eds.) Linguistique et psychanalyse (2001)

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See detailFreud et Husserl
Gyemant, Maria ULg

in Terquem, Sarah (Ed.) Dictionnaire Sigmund Freud (2014)

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See detailFreud’s thinking about homosexuality
Naziri, Despina ULg

Conference (2014, March 27)

Chair: François Ladame (Swiss Soc) Presentations: Anders Carlberg (Swedish Assoc) / Sara Flanders (British Soc) / Petra Heymanns (German Assoc) / Despina Naziri (Belgian Soc) / Denny Panitz (Hellenic Soc ... [more ▼]

Chair: François Ladame (Swiss Soc) Presentations: Anders Carlberg (Swedish Assoc) / Sara Flanders (British Soc) / Petra Heymanns (German Assoc) / Despina Naziri (Belgian Soc) / Denny Panitz (Hellenic Soc) The EPF ad-hoc group on homosexuality (Anders Carlberg (Swedish Assoc.), Sara Flanders (British Soc.), Petra Heymanns (German Assoc.), François Ladame (Swiss Soc.), Despina Naziri (Belgian Soc.), and Denny Panitz (Hellenic Soc.)) will present the result of their thorough exploration of what Freud did say and didn’t say about homosexuality. To get there, we first did a chronological – and hopefully comprehensive – review of Freud’s writings on the issue. On a second step, we gathered the quotations according to a number of themes: bisexuality, narcissism, development, aggression and conflict, identification and Oedipus, and perversion/inversion. For the panel, the presentation on Freud’s thinking on homosexuality shall be organised around four “dimensions”: bisexuality, object choice, normality/pathology, and the quantitative factor, with a few “variables” impacting in various ways on each of them (narcissism, free aggressiveness, the socio-cultural context, and the historical meaning of perversion). Due consideration will also be given to the general theme of the Conference “too much – not enough”. As our results are questioning and challenging, enough time shall be kept for the discussion with the floor. [less ▲]

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See detailFreud, l'individu et le groupe : Hier et aujourd'hui
Carels, N.; Gauthier, Jean-Marie ULg

in Revue Belge de Psychanalyse (1996), 29

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See detailFreyr... dans la légende du café...
Mignon, Jacques ULg

in Toussaint, Jacques (Ed.) Freyr-sur-Meuse. Un patrimoine exceptionnel en province de Namur (2013)

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See detailFriches dʼhabitat et désurbanisation en Wallonie
Halleux, Jean-Marie ULg; Lambotte, Jean-Marc ULg

in Géocarrefour (2004), (79), 153-162

Le phénomène des logements vides est en Wallonie un problème urbain de plus en plus sérieux. L’article vise à rendre compte des mécanismes qui concourent à cette multiplication des friches d’habitat. Une ... [more ▼]

Le phénomène des logements vides est en Wallonie un problème urbain de plus en plus sérieux. L’article vise à rendre compte des mécanismes qui concourent à cette multiplication des friches d’habitat. Une première partie est consacrée aux mutations territoriales et immobilières observées en Belgique lors des dernières décennies. En s’appuyant sur l’examen de trois enquêtes, la seconde partie porte ensuite sur les choix d’investissements qui expliquent pourquoi des propriétaires de plus en plus nombreux délaissent leur patrimoine immobilier. La première enquête a été réalisée auprès d’un échantillon représentatif des particuliers actifs sur le marché de la location, la deuxième auprès de propriétaires d’immeubles résidentiels vides et la troisième auprès de propriétaires d’immeubles commerciaux comportant des étages vides. [less ▲]

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See detailLes friches industrielles
Fagot, Jean ULg; Guillitte, Olivier ULg; Hemptinne, J. L. et al

in Le Grand Livre de la Nature en Wallonie (1995)

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See detailLes friches industrielles
Merenne-Schoumaker, Bernadette ULg; Bruyelle, P.; Kivell, P. T.

in Revue Belge de Géographie (1992), (50), 113-137

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See detailLes friches industrielles. Leur réhabilitation en milieu urbain
Merenne-Schoumaker, Bernadette ULg

in Cahiers de la Fonderie (1990), (8 spécial), 67-74

Study of characteristics of brownfield in urban mileiu based on the case of Brussels

Detailed reference viewed: 316 (36 ULg)