81,594 research outputs found
Général Dufour : Commandant En Chef De L'Armée Fedérale accompagné de son état Major
No full textDie Abgebildeten sind unten aufgelistet (v.l.n.r.): De Linden, Pfander, Gatschet, Fischer, Freÿ-Hérosé, de Gross, d'Orelli, Denzler, Zimmerli, Freÿ, Herosé, Hussy, d'Orelli, Scherrer und Arnd. GrossmannDesiné par H: Fischer ; Litho: J.F. Wagner à Berne. ; daprés les portraits au Daguerréotype fait par J.H. Humnick
Panorama de la Scheinigen-Platte, Oberland bernois
No full textH. Fischer dess. et lith. ; Jmp. J.C. OchsnerFarbige KreidelithographiePanorama, unten, rechts: Chez H. Blom, libraireHeinrich Fischer zugeschriebe
Ragatz, Ct. de St. Gall : [Panorama]
No full textH. Fischer del. ; imp. par OchsnerFarbige KreidelithographieHeinrich Fischer zugeschriebe
Panorama de Murren
No full textH. Fischer del. ; imp. par OchsnerFarbige LithographieHeinrich Fischer zugeschriebe
Panorama de l'Uetliberg près de Zurich
No full textH. Fischer del. ; imp. par OchsnerHeinrich Fischer zugeschriebenFarbige KreidelithographieMit schwarzer Randlini
Alte Tonhalle in Zürich : nach der Natur gezeichnet von H. Fischer
No full textAnsicht der alten Tonhalle vom See Richtung OpernhausDatierung anhand Bildinhalt, mit alter Tonhalle (1896 abgebrochen
Vanadia Promoted Co-AI20 3 Fischer-Tropsch Catalysts
No full textBibliography: leaves 117-124.The primary aim of this work was to study systematically V20 5 promotion on yAI203 supported cobalt-based Fischer-Tropsch catalysts. The y-Ah03 support was modified by addition of varying amounts of vanadia and was subsequently loaded with the same Co content (10 wt-%). The modified supports and catalysts were characterised using conventional characterisation methods. The physio-chemical properties of the vanadia promoted supports and catalysts were characterised using Atomic Adsorption Spectroscopy (AAS), zeta-potential measurements, and BET measurements, X-ray Diffraction (XRD), Temperature Programmed Reduction (TPR), Transmission Electron Microscopy (TEM), and CO chemisorption. Catalyst performance in the Fischer-Tropsch synthesis was tested in fixed bed reactor. A catalysts synthesised from plain y-A1203 was used as a base catalyst. Characterization results show that modification of y-Ab03 support to obtain V205 loadings beyond 1-monolayer vanadia coverage was difficult when using ion exchange. Ion-exchange equilibrium limitations might have caused the poor vanadia loadings beyond 1-monolayer coverage. The supports net surface charge as measured using zeta potential, was decreased by vanadia content in the supports. CO chemisorption results were complex and could only be modelled using dual site Langmuir model assuming the presence of two different sites absorbing CO on the Co-V-AI catalyst system. This made extraction of physical properties from this method rather difficult. Fischer Tropsch synthesis reaction was carried out at typical industrial conditions (T=220°C, P=20 bar (a), H2/CO=2 Xco-60 mol-%) for cobalt catalysts. Vanadia promoted catalysts showed a marked decrease in initial activity. However, the overall deactivation rate was lower with increasing vanadia content. The vanadia content did not affect the chain growth kinetic behavior of the catalyst in the Fischer-Tropsch synthesis hence C5+ selectivity in the Fischer-Tropsch synthesis was unperturbed by vanadia content. Increasing the vanadia content in the catalyst resulted in high n-olefin content and high 1-olefin content. The observed increase in olefin content might be due to the low catalytic activity observed for the catalysts with high vanadia loadings. The most pronounced effect of vanadia promotion on Fischer Tropsch synthesis was in the oxygenate content in the Fischer-Tropsch product. Catalysts with high vanadia loading yielded high amounts of oxygenate products; mainly alcohols and aldehydes
Opius (Misophthora) monilicornis FISCHER 1962
No full textOpius (Misophthora) monilicornis FISCHER 1962 M a t e r i a l: Mazandaran province: Ghaemshahr (1), October 2003. G e n e r a l d i s t r i b u t i o n: Algeria, Jordan, Maroc, Moldova, Spain, Syria, Turkey. R e m a r k: There are several in the collection of the Natural History Museum Vienna from Morocco and Syria. These two countries are probably new to the list of distribution.Published as part of Ghahari, H., Fischer, M., Cetin, O., Beyarslan, A. & Ostovan, H., 2010, A contribution to the braconid wasps (Hymenoptera: Braconidae) from the forests of northern Iran, pp. 621-634 in Linzer biologische Beiträge 42 (1) on page 628, DOI: 10.5281/zenodo.533280
Phaenocarpa zambiaensis FISCHER
No full text<i>Phaenocarpa zambiaensis</i> FISCHER <p> <i>Phaenocarpa zambiaensis</i> FISCHER 1997 - Ann. Naturhist Mus. Wien <b>99B</b>: 115,.</p> <p>U n t e r s u c h t e s M a t e r i a l: Zambia-C, 45 km SE Kitwe, 12-15. I 2003, J. Halada leg., 1.</p>Published as part of <i>Fischer, M., 2006, Neue Kieferwespen aus der Sammlung des Biologiezentrums des Oberösterreichischen Landesmuseums in Linz und Mitteilungen über andere Arten (Hymenoptera, Braconidae, Alysiinae), pp. 605-651 in Linzer biologische Beiträge 38 (1)</i> on page 626, DOI: <a href="http://zenodo.org/record/5433825">10.5281/zenodo.5433825</a>
[Porträt des Ulrich Ochsenbein im Offiziersrock]
No full textH. Fischer ad nat. fec.Der Künstler kann nicht näher identifiziert werdenFaksimilierter Autograph Ochsenbeins auf der Unterlag
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