Showing results 1 to 20 of 570
 International Directory of Astronomical Associations and Societies - I.D.A.A.S. 1986; Manfroid, Jean  Article for general public (1986) Not Available Detailed reference viewed: 2 (0 ULg) Long-slit pre and postperihelion spectrography of Comet P/HalleyArpigny, Claude ; ; et alin ESLAB Symposium on the Exploration of Halley's Comet (1986, December 01) A series of about forty long-slit spectra of Halley's comet has been secured in the optical wavelength region, using different instruments, at resolution ranging from 0.05 to 1.6 nm. The interval of ... [more ▼] A series of about forty long-slit spectra of Halley's comet has been secured in the optical wavelength region, using different instruments, at resolution ranging from 0.05 to 1.6 nm. The interval of heliocentric distance r covered by these observations is 1.7 to 0.9 a.u. before perihelion, while r = 0.95 a.u. after perihelion. The main characteristics of the pre-perihelion spectra are described. In particular, some emissions due to the OH[SUP]+[/SUP] (0,1) and CH[SUP]+[/SUP](1,0) bands have been detected for the first time. [less ▲] Detailed reference viewed: 3 (2 ULg)Resolution of the (OI) + NH2 blend in Comet P/HalleyArpigny, Claude ; Magain, Pierre ; Manfroid, Jean et alin ESLAB Symposium on the Exploration of Halley's Comet (1986, December 01) Spectra of P/Halley were taken at very high resolution (0.15A) to evaluate contamination of the forbidden oxygen doublet by NH2 features at low resolution. Comparison is made with other bright comets ... [more ▼] Spectra of P/Halley were taken at very high resolution (0.15A) to evaluate contamination of the forbidden oxygen doublet by NH2 features at low resolution. Comparison is made with other bright comets. Appreciable variations are found in the NH2/(OI) ratio and in the relative intensities of the NH2 emissions themselves. The accuracy obtained on the oxygen abundance derived from the (OI) lines is discussed. Mapping of these emissions over the coma is required to correctly remove any important NH2 contribution at low resolution. This should also provide information on the origin of the oxygen atoms in the 1D level. [less ▲] Detailed reference viewed: 5 (0 ULg)Pre- and postperihelion photometry of Comet Halley from several observatories; Manfroid, Jean ; Arpigny, Claude in ESLAB Symposium on the Exploration of Halley's Comet (1986, December 01) Photoelectric observations of P/Halley were carried out during several weeks between 15 Sept. 1985 and 25 June 1986. All measurements were made using the standard IAU/IHW cometary filters. Large amplitude ... [more ▼] Photoelectric observations of P/Halley were carried out during several weeks between 15 Sept. 1985 and 25 June 1986. All measurements were made using the standard IAU/IHW cometary filters. Large amplitude night-to-night changes over periods of several days superimposed on the general trend of slow brightness variation were seen. Smooth and irregular variations with a range up to 0.2 mag on time scales of several hours were observed. Present photometric scans of comet Halley through the various filters are presented. Successive integrations were made every 5 arc sec, radially from the center out to a distance of 5 arcmin, essentially along the sunward-antisunward direction and in the direction perpendicular to it. [less ▲] Detailed reference viewed: 2 (0 ULg)Les immigrés en Belgique en temps de criseVerjans, Pierre in Artisans de Paix (1986) Detailed reference viewed: 11 (1 ULg)Influence of propyleneglycol, dimethylisosorbide and isopropylmyristate on in vitro release of an antihistaminic drug from a transdermal therapeutic systemEvrard, Brigitte ; ; Delattre, Luc Poster (1986, December) Detailed reference viewed: 24 (0 ULg)Les traumatismes du duodenumHonoré, Pierre ; ; et alin Revue Médicale de Liège (1986), XLI(23), 963-966 Detailed reference viewed: 13 (1 ULg)Gangliocytome dysplasique du cervelet ou maladie de LhermitteDuclos (A propos de 2 cas opérés); Martin, Didier ; et alConference (1986, December) Detailed reference viewed: 41 (0 ULg) Eléments primaux à cadresDebongnie, Jean-François Report (1986) Framed primal finite elements may be viewed as a generalized class of elements including conforming elements, primal hybrids, and non concorming elements passing the patch test. This systematization is ... [more ▼] Framed primal finite elements may be viewed as a generalized class of elements including conforming elements, primal hybrids, and non concorming elements passing the patch test. This systematization is illustrated on a lot of examples. [less ▲] Detailed reference viewed: 11 (1 ULg)Liège et le TGVMarchal, Jean in Journal des Ingénieurs (Le) (1986), (mensuel n°15), 8 Detailed reference viewed: 9 (2 ULg)Etude des chlorations à la centrale Tihange; ; Everbecq, Etienne et alReport (1986) Afin d'élimine(r les salissures qui se développent sur les parois des dispositifs de refroidissement, des chlorations sont pratiquées régulièrement dans les centrales électriques. La présente étude ... [more ▼] Afin d'élimine(r les salissures qui se développent sur les parois des dispositifs de refroidissement, des chlorations sont pratiquées régulièrement dans les centrales électriques. La présente étude concernait la problématique des chlorations à la centrale de Tihange 1 et avait pour objectifs : i) de comprendre les différents processus physico-chimiques qui se passent à l'intérieur des circuits de la centrale et dans la Meuse; ii) de déterminer de quelle manière les processus de chloration ont un impact sur la qualité des eaux de la Meuse et sur le fonctionnement de son écosystème [less ▲] Detailed reference viewed: 9 (0 ULg)Le traitement de l'acromégalie par SandostatineBeckers, Albert Scientific conference (1986, November 20) Detailed reference viewed: 2 (0 ULg)Pulmonary function and tracheal dynamics during upper airway obstructive diseases in cattleLekeux, Pierre ; Art, Tatiana in Proceedings of the Fifth Veterinary Respiratory Symposium (1986, November 15) Detailed reference viewed: 11 (2 ULg)CDS Special Publication n° 9: International Directory of Professional Astronomical Institutions 1987; Manfroid, Jean in Bulletin d'Information du Centre de Données Stellaires (1986), 31 Not Available Detailed reference viewed: 1 (0 ULg)The variability of SPICA; ; Manfroid, Jean in Astronomy and Astrophysics (1986), 169 Differential uvby observations of Spica are presented and analyzed. No coherent short-period light or colour index variations are found. An analysis of the ellipsoidal light variation leads to a new value ... [more ▼] Differential uvby observations of Spica are presented and analyzed. No coherent short-period light or colour index variations are found. An analysis of the ellipsoidal light variation leads to a new value of the radius of the primary component, which agrees very well with the radius determined by means of the Narrabri stellar intensity interferometer. The analysis also shows that the photometric data are consistent with the spectrographic period of the rotation of the line of apsides. In addition, recent hypotheses concerning the apparently extinct pulsations of the primary component are discussed. It is pointed out that the enhanced surface helium models of Cox (1985) predict pulsation constants substantially larger than the pulsation constant derived from the observationally determined mass and radius. [less ▲] Detailed reference viewed: 2 (0 ULg)Greffe combinée rein-pancréas dans la néphropathie diabétique terminale. Rapport de la première transplantation à l'ULg.RevueMeurisse, Michel ; ; Honoré, Pierre et alin Revue Médicale de Liège (1986), XLI(21), 855-863 Detailed reference viewed: 26 (1 ULg)Photophysical properties of Eosin dianion in cationic micellar solutionsSeret, Alain ; ; in Archives Internationales de Physiologie et de Biochimie (1986, November), 94(4), 15 Detailed reference viewed: 22 (0 ULg)Feature Extraction in Laser-radar Range Imagery: I. Contour-based Approach; Verly, Jacques ; et alConference (1986, November) Feature Extraction in Laser-radar Range Imagery: II. Intensity-Cued Region-based ApproachVerly, Jacques ; ; Conference (1986, November) Detailed reference viewed: 1 (0 ULg)La perception du temps chez l'animalRichelle, Marc ; Lejeune, Helga in La recherche (1986), 182 Detailed reference viewed: 32 (0 ULg) |
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