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[more ▼]The proposed HI-LITE Explorer will investigate the global ion outflow from the high-latitude ionosphere, its relationship to auroral features, and the consequences of this outflow on magnetospheric processes. The unique nature of the HI-LITE Explorer images will allow temporal and spatial features of the global ion outflow to be determined. The mission's scientific motivation comes from the fundamental role high-latitude ionospheric ions play in the dynamics of the solar wind driven magnetospheric-ionospheric system. These outflows are a major source of plasma for the magnetosphere and it is believed they play an important role in the triggering of substorms. In addition this paper describes the HI-LITE spacecraft and instruments. [less ▲]Detailed reference viewed: 14 (1 ULg) High-latitude nitric oxide in the lower thermosphereGérard, Jean-Claude ; Barth, C. A.in Journal of Geophysical Research (1977), 82High-latitude observations of fluorescent nitric oxide gamma bands were made before and during a strong magnetic storm with the Ogo 4 ultraviolet spectrometer. Brightness measurements of the (1-0) gamma ... [more ▼]High-latitude observations of fluorescent nitric oxide gamma bands were made before and during a strong magnetic storm with the Ogo 4 ultraviolet spectrometer. Brightness measurements of the (1-0) gamma band of nitric oxide indicate a slow buildup of NO during the disturbed period. The NO column density reaches a value as high as a factor of 8 greater than the midlatitude value and shows no correlation with the brightness of the instantaneous aurora. A time-dependent model calculation indicates that the ionization and dissociation of N2 by auroral electrons can increase the NO and N(4-S) densities. This increase is dependent on the intensity and duration of the auroral precipitation and on the branching ratio of N(2-D) production by dissociation of N2. A steady state is not reached for NO until 100,000 sec in an aurora characterized by an energy flux of 10 ergs per sq cm sec. Dissociation by the solar ultraviolet radiation competes with horizontal and vertical transport as a loss process for the nitric oxide produced by the aurora. A high NO(plus)/O2(plus) ratio is to be expected in the period following a strong auroral precipitation. [less ▲]Detailed reference viewed: 16 (0 ULg) High-level biosynthesis of the anteiso-C(17) isoform of the antibiotic mycosubtilin in Bacillus subtilis and characterization of its candidacidal activity.Fickers, Patrick ; Guez, Jean-Sebastien; Damblon, Christian et alin Applied and Environmental Microbiology (2009), 75(13), 4636-40High-level production (880 mg liter(-1)) and isolation of the anteiso-C(17) isoform of the lipopeptide mycosubtilin produced by a genetically engineered Bacillus subtilis strain are reported. Antifungal ... [more ▼]High-level production (880 mg liter(-1)) and isolation of the anteiso-C(17) isoform of the lipopeptide mycosubtilin produced by a genetically engineered Bacillus subtilis strain are reported. Antifungal activity of this isoform, as determined via culture and fluorometric and cell leakage assays, suggests its potential therapeutic use as an antifungal agent, in particular against Candida spp. [less ▲]Detailed reference viewed: 41 (12 ULg) High-level production of extracellular lipase by Yarrowia lipolytica mutants from methyl oleateDarvishi, F.; Destain, Jacqueline ; Nahvi, I. et alin New Biotechnology (2011), 28(6), 756-760Detailed reference viewed: 14 (1 ULg) High-order 3D Voronoi tessellation for identifying isolated galaxies, pairs and tripletsElyiv, Andrii ; Melnyk, Olga ; Vavilova, I.in Monthly Notices of the Royal Astronomical Society (2009), 394A geometric method based on the high-order 3D Voronoi tessellation is proposed for identifying single galaxies, pairs and triplets. This approach allows us to select small galaxy groups and isolated ... [more ▼]A geometric method based on the high-order 3D Voronoi tessellation is proposed for identifying single galaxies, pairs and triplets. This approach allows us to select small galaxy groups and isolated galaxies in different environments and to find the isolated systems. The volume-limited sample of galaxies from the Sloan Digital Sky Survey Data Release 5 spectroscopic survey was used. We conclude that in such small groups as pairs and triplets, segregation by luminosity is clearly observed: galaxies in isolated pairs and triplets are on average two times more luminous than isolated galaxies. We consider the dark matter content in different systems. The median values of mass-to-luminosity ratio are 12M[SUB]solar[/SUB]/L[SUB]solar[/SUB] for the isolated pairs and 44M[SUB]solar[/SUB]/L[SUB]solar[/SUB] for the isolated triplets, and 7 (8) M[SUB]solar[/SUB]/L[SUB]solar[/SUB] for the most compact pairs (triplets). We also found that systems in denser environments have greater rms velocity and mass-to-luminosity ratio. [less ▲]Detailed reference viewed: 13 (0 ULg) High-Order Discrete Geometrical ModelsGeuzaine, Christophe Scientific conference (2006, December 08)Detailed reference viewed: 2 (0 ULg) High-Order Discrete Geometrical ModelsGeuzaine, Christophe in Henrotte, F. (Ed.) Proceedings of the 3rd Advanced Computational Electromagnetics workshop (2007, June 29)Detailed reference viewed: 4 (0 ULg) High-order high-frequency integral equationsBruno, O.; Geuzaine, Christophe in Proceedings of the 7th International Conference on Mathematical and Numerical Aspects of Waves, Waves 2005 (2005)Detailed reference viewed: 2 (0 ULg) High-order methods in CFD - The discontinuous Galerkin approachDrosson, Marcus Scientific conference (2011, November 08)Since computational fluid dynamics CFD is no longer used by only a handful of experts but has become a mainstream tool, a lot of work has been done to improve the robustness of the simulation software ... [more ▼]Since computational fluid dynamics CFD is no longer used by only a handful of experts but has become a mainstream tool, a lot of work has been done to improve the robustness of the simulation software. Additionally besides an efficient parallelization that takes advantage of modern computer architecture, the request for high-order accuracy becomes more and more important. After a short description of the interior penalty discontinuous Galerkin method, several specific aspects of turbulent flows that affect the stability of the numerical method are discussed. The efficiency of the method is illustrated by a turbulent flat plate, a three component aerofoil and a 3D cascade flow. [less ▲]Detailed reference viewed: 33 (4 ULg) High-order sigma-delta interfaces for capacitive MEMS sensorsKraft, Michaël ; Dong, Yufengin Proceedings Sensor Conference 2007 (2007, May)Detailed reference viewed: 21 (2 ULg) High-order stochastic integral equation scheme for wave scattering problems with random impedance boundary conditionsGeuzaine, Christophe ; Gaignaire, R.; Bruno, O.in Proceedings of the IVth European Conference on Computational Mechanics (ECCM 2010) (2010)Detailed reference viewed: 19 (7 ULg) A high-order, high-frequency method for surface scattering by convex obstaclesBruno, O.; Geuzaine, Christophe in Proceedings of the 14th Conference on the Computation of Electromagnetic Fields, COMPUMAG 2003 (2003)Detailed reference viewed: 4 (1 ULg) High-order, high-frequency methods for surface scattering problemsGeuzaine, Christophe Scientific conference (2002, July 23)Detailed reference viewed: 11 (2 ULg) High-Order, High-Frequency Methods for Wave Scattering I, II and IIIGeuzaine, Christophe Scientific conference (2005, November 07)Detailed reference viewed: 5 (0 ULg) High-order, high-frequency methods in computational electromagnetism. Part I: Fast, high-order discretization schemes. Part II: Extension to arbritrary high frequenciesGeuzaine, Christophe Scientific conference (2005, July)Detailed reference viewed: 6 (0 ULg) High-Performance Anion-Exchange Chromatography - Dad As A Tool For The Identification And Quantification Of Oligogalacturonic Acids In Pectin DepolymerisationDeconinck, Thomas J.-M.; Ciza, Antoine; Sinnaeve, Georges et alin Carbohydrate Research (2000), 329(4), High-performance anion-exchange chromatography (HPAEC) coupled with a diode array detector (DAD) was used to identify and quantify oligogalacturonic acid components in pectins. Purified pectin lyase and ... [more ▼]High-performance anion-exchange chromatography (HPAEC) coupled with a diode array detector (DAD) was used to identify and quantify oligogalacturonic acid components in pectins. Purified pectin lyase and polygalacturonase were used to generate unsaturated and saturated oligomers from pectins and sodium polygalacturonate, respectively. This method resulted in a good separation of saturated and unsaturated oligomers up to DP 13. It allowed us to follow polygalacturonase and pectate lyase depolymerisation pathways simultaneously. [less ▲]Detailed reference viewed: 25 (0 ULg) High-Performance Liquid Chromatography Analyses Of Pyoverdin Siderophores Differentiate Among Phytopathogenic Fluorescent Pseudomonas SpeciesBultreys, Alain; Gheysen, Isabelle; Wathelet, Bernard et alin Applied and Environmental Microbiology (2003), 69(2), Detailed reference viewed: 22 (0 ULg) High-Performance Work Systems and Well-Being: Mediating role of Work-Home InterferenceBabic, Audrey ; STINGLHAMBER, Florence; Hansez, Isabelle Conference (2013, May 28)Detailed reference viewed: 26 (10 ULg) High-Performance Work Systems, Job Strain and Job Engagement: What is the Role of Work-Home Interference?Babic, Audrey ; Stinglhamber, Florence; Hansez, Isabelle Conference (2014, April)Detailed reference viewed: 99 (7 ULg) High-precision CoRoT space photometry and fundamental parameter determination of the B2.5V star HD 48977Thoul, Anne ; Degroote, Pieter; Catala, Claude et alin Astronomy and Astrophysics (2013), 551We present the CoRoT light curve of the bright B2.5V star HD 48977 observed during a short run of the mission in 2008, as well as a high-resolution spectrum gathered with the HERMES spectrograph at the ... [more ▼]We present the CoRoT light curve of the bright B2.5V star HD 48977 observed during a short run of the mission in 2008, as well as a high-resolution spectrum gathered with the HERMES spectrograph at the Mercator telescope. We use several time series analysis tools to explore the nature of the variations present in the light curve. We perform a detailed analysis of the spectrum of the star to determine its fundamental parameters and its element abundances. We find a large number of high-order g-modes, and one rotationally induced frequency. We find stable low-amplitude frequencies in the p-mode regime as well. We conclude that HD 48977 is a new Slowly Pulsating B star with fundamental parameters found to be Teff = 20000 $\pm$ 1000 K and log(g)=4.2 $/pm$ 0.1. The element abundances are similar to those found for other B stars in the solar neighbourhood. HD 48977 was observed during a short run of the CoRoT satellite implying that the frequency precision is insufficient to perform asteroseismic modelling of the star. Nevertheless, we show that a longer time series of this star would be promising for such modelling. Our present study contributes to a detailed mapping of the instability strips of B stars in view of the dominance of g-mode pulsations in the star, several of which occur in the gravito-inertial regime. [less ▲]Detailed reference viewed: 23 (13 ULg)