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See detailControlling flux flow dissipation by changing flux pinning in superconducting films
Grimaldi, G; Leo, A; Nigro, A et al

in Applied Physics Letters (2012), 100

We study the flux flow state in superconducting materials characterized by rather strong intrinsic pinning, such as Nb, NbN, and nanostructured Al thin films, in which we drag the superconducting ... [more ▼]

We study the flux flow state in superconducting materials characterized by rather strong intrinsic pinning, such as Nb, NbN, and nanostructured Al thin films, in which we drag the superconducting dissipative state into the normal state by current biasing. We modify the vortex pinning strength either by ion irradiation, by tuning the measuring temperature or by including artificial pinning centers. We measure critical flux flow voltages for all materials and the same effect is observed: switching to low flux flow dissipations at low fields for an intermediate pinning regime. This mechanism offers a way to additionally promote the stability of the superconducting state. [less ▲]

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See detailControlling form errors from 3D measures
Debongnie, Jean-François ULg; Masset, Luc ULg

in ASME (Ed.) Proceedings of the 1999 ASME Design Engineering Technical Conference (1999, September)

Owing to the fact that a correct evaluation of form errors is particularly difficult by the classical ways, it seems more efficient to develop numerical algorithms from 3D measures. Several methods are ... [more ▼]

Owing to the fact that a correct evaluation of form errors is particularly difficult by the classical ways, it seems more efficient to develop numerical algorithms from 3D measures. Several methods are described, including direct and iterative ones. A new method is proposed, which is based on Lp-norms and a specialized algorithm. It proved to be the most effective and robust one on every studied application. [less ▲]

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See detailControlling the effects of anomalous ARP behaviour on ethernet networks
Ármannsson, D.; Hjálmt sson, G.; Smith, Paul et al

in Proceedings of the 2005 ACM conference on Emerging network experiment and technology (2005)

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See detailControlling the electrografting of polymers onto transition metal surfaces through solvent vs monomer adsorption
Crispin, Xavier; Lazzaroni, Roberto; Geskin, Victor et al

in Journal of the American Chemical Society (1999), 121(1), 167-187

Electropolymerization of methacrylic monomers opens the possibility of chemically grafting a wide range of polymers onto transition metal surfaces. In this work, the electropolymerization of ... [more ▼]

Electropolymerization of methacrylic monomers opens the possibility of chemically grafting a wide range of polymers onto transition metal surfaces. In this work, the electropolymerization of polyacrylonitrile and polyethyl acrylate is studied in different solvents; we experimentally confirm that the choice of solvent is a critical parameter for obtaining electrografted polymers. A density-functional theory−based study modeling the interaction of solvent (acetonitrile, dimethylformamide, and pyridine) or monomer (acrylonitrile and ethyl acrylate) molecules with the Ni(100) metal surface provides the means to classify the organic molecules with respect to their ability to interact with the surface. The surface binding-energy difference between monomer and solvent is introduced in a Frumkin-type isotherm. This allows us to rationalize the experimental observations in terms of a competitive adsorption at the metal surface between the monomer and the solvent. The first step in the electrografting mechanism thus appears to be the chemisorption of the monomer at the electrode surface before cathodic polarization is applied; the chemisorbed monomer is therefore the first species reduced, giving rise to an adsorbed reactive intermediate, which is thus able to start the polymerization of a grafted chain. [less ▲]

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See detailControlling the partial coalescence of a droplet on a vertically vibrated bath
Gilet, Tristan ULg; Vandewalle, Nicolas ULg; Dorbolo, Stéphane ULg

in Physical Review E (2007), 76(3, Pt 2), 35302

A method is proposed to stop the cascade of partial coalescences of a droplet laid on a liquid bath. The strategy consists of vibrating the bath in the vertical direction in order to keep small droplets ... [more ▼]

A method is proposed to stop the cascade of partial coalescences of a droplet laid on a liquid bath. The strategy consists of vibrating the bath in the vertical direction in order to keep small droplets bouncing. Since large droplets are not able to bounce, they partially coalesce until they reach a critical size. The system behaves as a low pass filter: droplets smaller than the critical size are selected. This size has been investigated as a function of the acceleration and the frequency of the bath vibration. Results suggest that the limit size for bouncing is related to the first mode of the droplet deformation. [less ▲]

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See detailControlling the phase of an oscillator: a phase response curve approach
Efimov, Denis; Sacré, Pierre ULg; Sepulchre, Rodolphe ULg

in Proceedings of the Joint 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference (2009, December)

The paper discusses elementary control strategies to control the phase of an oscillator. Both feedforward and feedback (P and PI) control laws are designed based on the phase response curve (PRC ... [more ▼]

The paper discusses elementary control strategies to control the phase of an oscillator. Both feedforward and feedback (P and PI) control laws are designed based on the phase response curve (PRC) calculated from the linearized model. The performance is evaluated on a popular model of circadian oscillations. [less ▲]

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See detailControlling the Trade of Dual-Use Goods - A Handbook
Michel, Quentin ULg; Paile, Sylvain ULg; Tsukanova, Maryna ULg et al

Book published by PIE Peter Lang (2013)

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See detailControls of the surface water partial pressure of CO2 in the North Sea
Thomas, H.; Bozec, Y.; de Baar, Hein J. W. et al

in Biogeosciences (2005), 2(4), 323-334

The seasonal variability of the partial pressure of CO2 (pCO2) has been investigated in the North Sea, a northwest European shelf sea. Based on a seasonal and high spatial resolution data set the main ... [more ▼]

The seasonal variability of the partial pressure of CO2 (pCO2) has been investigated in the North Sea, a northwest European shelf sea. Based on a seasonal and high spatial resolution data set the main controlling factors – biological processes and temperature - have been identified and quantified. In the central and northern parts being a CO2- sink all year round, the biological control dominates the temperature control. In the southern part, the temperature control dominates the biological control at an annual scale, since the shallow water column prevents stronger net-CO2 removal from the surface layer due to the absence of seasonal stratification. The consequence is a reversal of the CO2 seato- air flux during the spring bloom period, the only time, when CO2 is taken up from the atmosphere in the southern region. Net community production in the mixed layer has been estimated to 4mol Cm−2 yr−1 with higher values (4.3 mol Cm−2 yr−1) in the northern part and lower values in the southern part (2.6 mol Cm−2 yr−1). [less ▲]

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See detailControls on the oceanic CO2 sink near the Crozet Plateau in the Southern Ocean
Bakker, D; Nielsdottír, M.; Allen, J et al

Poster (2005, September)

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See detailLa controverse a propos de la decouverte de l'insuline. L'histoire vue sous l'angle de la philatelie.
Scheen, André ULg

in Revue Médicale de Liège (1997), 52(12), 756-9

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See detailLa controverse sur la négation de Bolzano à Windelband
Seron, Denis ULg

in Philosophie (2006), 90

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See detailControverses a propos des criteres de jugement dans les essais cliniques de prevention cardiovasculaire.
Scheen, André ULg

in Revue Médicale Suisse (2006), 2(76), 1875-6

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See detailControverses climatiques, sciences et politique.
Zaccai, Edwin; Gemenne, François ULg; Decroly, Jean-Michel

Book published by Presses de Sciences Po (2012)

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See detailControverses et processus décisionnel : l’implication du citoyen comme “expert d’usage”
Parotte, Céline ULg; Piet, Grégory ULg; Brunet, Sébastien ULg

Conference (2011, May 19)

Si les mécanismes de démocratie délibérative et participative sont de plus en plus souvent convoqués au cœur de nos systèmes de démocratie représentative, il nous intéressera, en procédant d’une démarche ... [more ▼]

Si les mécanismes de démocratie délibérative et participative sont de plus en plus souvent convoqués au cœur de nos systèmes de démocratie représentative, il nous intéressera, en procédant d’une démarche inductive, de comprendre, dans un premier temps, quelle place le processus décisionnel accorde aux citoyens ordinaires et, dans un second temps, quel est le poids de ces citoyens dans ce processus. [less ▲]

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See detailControverses sur la configuration de territoires indigènes
Escobar Jimenez, Kelly ULg

Scientific conference (2012, April 27)

Mon argument va en deux sens, il s’agit d’abord de montrer le caractère controversé et incertain de la gestion territorial en Amazonie; Et deuxièmement, de tester l’hypothèse constructiviste selon ... [more ▼]

Mon argument va en deux sens, il s’agit d’abord de montrer le caractère controversé et incertain de la gestion territorial en Amazonie; Et deuxièmement, de tester l’hypothèse constructiviste selon laquelle l’espace est produit, par l’intermédiaire d’instrument scientifiques et techniques, et non pas donné ontologiquement. [less ▲]

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See detailCONTROVERSES SUR LA CONFIGURATION DES TERRITOIRES INDIGÈNES ET DES AIRES PROTÉGÉES
Escobar Jimenez, Kelly ULg

Learning material (2012)

Le document explique quel est le rôle des objets intermédiaires dans la construction de frontières en Amazonie équatorienne. Les dispositifs et instruments mobilisés dans la gestion de ces territoires ... [more ▼]

Le document explique quel est le rôle des objets intermédiaires dans la construction de frontières en Amazonie équatorienne. Les dispositifs et instruments mobilisés dans la gestion de ces territoires stabilisent ou rendent controversé la configuration des limites territoriales. [less ▲]

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See detailControverses thérapeutiques: le traitement de la maladie de Basedow
Khalife, A.; Valdes Socin, Hernan Gonzalo ULg; Beckers, Albert ULg

in Revue Médicale de Liège (1999), 54(7), 606-610

Hyperthyroidism is a common clinical condition with an annual incidence of about 1%. Approximately, 1 in every 20 women will develop this condition during a lifetime. Most cases are due to Graves'disease ... [more ▼]

Hyperthyroidism is a common clinical condition with an annual incidence of about 1%. Approximately, 1 in every 20 women will develop this condition during a lifetime. Most cases are due to Graves'disease. Solitary toxic nodules and toxic multinodular goiters are also important but less frequent causes. In this article, we will consider only the treatment of Graves'disease. Anti-thyroid drugs, surgery and radio-iodine, all represent effective forms of treatment. There is, however, little consensus regarding the treatment of choice for specific cases. This article discusses the advantages and disadvantages of each treatment. [less ▲]

Detailed reference viewed: 103 (3 ULg)