TY - CHAP A1 - Stehlikova, Veronika A1 - Döhring, Thorsten A1 - Schäfer, Tobias A1 - Stollenwerk, Manfred A1 - Friedrich, Peter A1 - Burwitz, Vadim A1 - Hartner, Gisela A1 - Bradshaw, Miranda A1 - Liao, Yingyu A1 - Pelliciari, Carlo T1 - X-ray reflectivity measurements at chromium-iridium tri-layer coatings T2 - Proceedings of SPIE N2 - Studying astronomical objects in the X-ray regime, iridium-based layer systems are highly effective reflective materials for telescopes mirrors. Aschaffenburg University and the Czech Technical University in Prague jointly developed stress compensated chromium-iridium coatings. To overcome the disturbing reflectivity reduction of the iridium absorption edge around 2 keV photon energy and improve general reflectivity at lower incident energies, thin overcoat layers of chromium have been applied in addition. Corresponding measurements at several X-ray lines have been performed on these samples at the PANTER test facility of the Max-Planck Institute for extraterrestrial Physics. A part of the experimental results and their comparison with theoretical simulations are presented in this contribution. KW - iridium KW - mirror KW - coating KW - reflectivity KW - X-ray KW - Röntgenastronomie KW - Röntgenteleskop Y1 - 2019 U6 - https://doi.org/http://dx.doi.org/10.1117/12.2530439 VL - 2019 IS - 11119 SP - 111191L-1 EP - 111191L-6 ER - TY - CHAP A1 - Witte, Gerd A1 - Stollenwerk, Manfred T1 - Energy saving of cooling water pumps for power plants using adjustable propeller blades T2 - International Rotating Equipment Conference 2008, Düsseldorf KW - Kühlwasseranlage KW - Energieeinsparung Y1 - 2008 ER - TY - CHAP A1 - Stollenwerk, Manfred T1 - DVD/R 16x high quality mass production - Vortrag auf der Conference Replication Expo, September 2005, Shanghai, China N2 - Vortrag auf der Conference Replication Expo September 2005, Shanghai, China KW - DVD-R Y1 - 2005 ER - TY - JOUR A1 - Mustorph, Heinz A1 - Stollenwerk, Manfred A1 - Bressau, Volker T1 - Current Developments in Optical Data Storage with Organic Dyes JF - Angewandte Chemie N2 - The main motivation for the development of digital data storage has been the improvement in play‐back quality and the increase in storage capacity. In 1982 Philips and Sony introduced the first technically and economically successful system based on this—the compact disc (CD) and a compatible player. A very broad diversity of optical data recording formats are available today, and a difference is drawn between prerecorded, recordable, and rewritable media. This Review gives an overview of the systems used, the main features of production, and then concentrates on the properties of the organic dyes that are used in recordable systems. Dyestuffs chemistry has gained the reputation of having become a mature field of activity. Is this prejudice or a justified swan song for dyestuffs chemistry? When applications in optical data storage are considered, it is evident that even today progresses such as CD‐R and DVD/R would not be feasible without functional dyes. KW - Optischer Speicher Y1 - 2006 VL - 45 IS - 13 SP - 2016 EP - 2035 ER - TY - JOUR A1 - Döhring, Thorsten A1 - Pribulla, Theodor A1 - Komzik, Richard A1 - Mann, Michael A1 - Sivanic, Peter A1 - Stollenwerk, Manfred T1 - Slovak-Bavarian collaboration on the development of telescope instrumentation JF - Contributions of the Astronomical Observatory Skalnate Pleso N2 - Within the project SLOBATCO (Slovak-Bavarian Telescope Collaboration) the Astronomical Institute of the Slovak Academy of Sciences and Aschaffenburg University of Applied Sciences collaborate in the development and commissioning of scientific instrumentation for the new Ø1.3 m astronomical telescope at the Skalnaté Pleso observatory. The joint project is funded by the Bavarian Academic Center for Central, Eastern and Southeastern Europe (BAYHOST). Planned technical work packages are targeting the filter wheel software for the VIS camera, additional IR filters, and an upgrade of the mirror coating facility by additional sputtering equipment. KW - telescope KW - instrumentation KW - filter KW - camera KW - coating KW - Spiegelteleskop Y1 - 2019 UR - https://www.ta3.sk/caosp/Eedition/FullTexts/vol49no2/pp154-158.pdf VL - 2019 IS - 49 / 2 SP - 154 EP - 158 ER - TY - GEN A1 - Mann, Michael A1 - Döhring, Thorsten A1 - Pribulla, Theodor A1 - Komzik, Richard A1 - Sivanic, Peter A1 - Stollenwerk, Manfred ED - Skopal, Augustin T1 - Power quality evaluation for observatories N2 - Within the project SLOBATCO the question did arise, to what extend observatories have to rely on adequate power quality, e.g. the perfect sinusoidal shape of supply voltage and current, in order to ensure safe operation and accurate measurement results. International power quality standards are put in perspective with requirement specifications. Telescope operators indicate partial or total loss of function of measurement instruments. Measurements conducted during SLOBATCO project substantiate the need for power quality measurement campaigns. N2 - Poster KW - instrumentation KW - site testing KW - telescope KW - Sternwarte KW - Elektrizitätsversorgung Y1 - 2019 ER - TY - CHAP A1 - Stollenwerk, Manfred T1 - The Energy Market within the next 20 years T2 - 6 MEAI, Wien KW - Energiemarkt Y1 - 2006 ER - TY - JOUR A1 - Stollenwerk, Manfred A1 - Gattinger, P. T1 - Process challenges of high Speed DVD/R manufacturing JF - One to One magazine KW - DVD-R KW - Herstellung Y1 - 2005 VL - 2005 IS - March SP - 55 EP - 58 ER - TY - CHAP A1 - Stollenwerk, Manfred T1 - Efficient DVD/R Production T2 - Optical Disc Seminar Asia ODSA, Teipei KW - DVD-R KW - Produktion Y1 - 2005 ER - TY - GEN A1 - Stollenwerk, Manfred T1 - Die optische Datenspeicherung auf CD und DVD T2 - Übersichtsvortrag auf der Fachtagung „Die Kunststoffoberfläche“ des Süddeutschen Kunststoffzentrums Würzburg N2 - Vortrag KW - Optischer Speicher Y1 - 2005 ER - TY - GEN A1 - Stollenwerk, Manfred T1 - Basics of Recordable Media Production T2 - Vortrag auf dem “International Recordable Media Technology Seminar”, Dubai N2 - Vortrag KW - CD-R KW - DVD-R Y1 - 2003 ER - TY - GEN A1 - Stollenwerk, Manfred T1 - Correlation of DVD-Recordable Disc Performance and Process Parameters T2 - Vortrag auf der „Replication EXPO 2003“, Shanghai, China N2 - Vortrag KW - DVD-R Y1 - 2003 ER - TY - GEN A1 - Stollenwerk, Manfred T1 - CD-Recordable CD-Rewriteable T2 - Vortrag auf der REPLItech Summit (Conference) São Paulo, Brazil N2 - Vortrag KW - CD-R Y1 - 1998 ER - TY - JOUR A1 - Stollenwerk, Manfred A1 - Alexander, Morgan A1 - Short, Robert A1 - Jones, Frank A1 - Zabold, Jochen A1 - Michaeli, Walter T1 - An X-ray photoelectron spectroscopic investigation into the chemical structure of deposits formed from hexamethyldisiloxane/ oxygen plasmas JF - Journal of Materials Science N2 - The effect of oxygen addition to microwave-sustained plasmas of hexamethyldisiloxane (HMDSO) has been investigated. Attention was directed to the solid products formed on aluminium substrates (plasma deposits). To enable a quantitative analysis of these, X-ray photoelectron spectroscopy (XPS) of standard silicon-containing materials was carried out. When suitable charge correction is applied to the XP spectra of HMDSO/O2 plasma deposits, a number of very clear trends emerge. From changes in elemental composition, core line binding energies (Si2p, C 1s, and O 1s) and widths, we show how oxygen addition to the plasma affects the chemical nature of the plasma deposit. The data reported also provide (some limited) information on the reactions taking place in the plasma. KW - Photoelektronenspektroskopie Y1 - 1996 VL - 31 IS - 7 SP - 1879 EP - 1885 ER - TY - JOUR A1 - Alexander, Morgan A1 - Short, Robert A1 - Jones, Frank A1 - Stollenwerk, Manfred A1 - Mathar, Gerd A1 - Zabold, Jochen A1 - Michaeli, Walter T1 - The heterogeneous nature of deposits from hexamethyldisiloxane/oxygen plasmas JF - Ceramic films and coatings KW - Hexamethyldisiloxan KW - Sauerstoff KW - Plasma Y1 - 1995 VL - 1995 IS - 54 SP - 87 EP - 99 ER - TY - BOOK A1 - Wolters, Leo A1 - Stollenwerk, Manfred A1 - Berthold, J. T1 - Die Plasmatechnologie und ihre Einsatzmöglichkeiten KW - Plasmatechnik Y1 - 1994 N1 - Lehrbuch des Technologie-Transfer-Rings Handwerk Nordrhein-Westfalen CY - Aachen ER - TY - GEN A1 - Michaeli, Walter A1 - Stollenwerk, Manfred A1 - Zell, Harald T1 - Variation der Oberflächenspannung bei flächigen Substraten und Verstärkungsfasern sowie der Einfluß auf die Faser/Matrix-Haftung bei faserverstärkten Kunststoffen KW - Faserverstärkter Kunststoff Y1 - 1994 N1 - Beitrag zum Seminar “Ausgewählte Anwendungen der Plasmapolymerisation“ der Plasmatechnologieinitiative NRW, Aachen, Oktober 1994 ER - TY - CHAP A1 - Michaeli, Walter A1 - Stollenwerk, Manfred A1 - Steinkamp, F. A1 - Zell, Harald T1 - Plasmabehandlung von Glasfasern für faserverstärkte Kunststoffe T2 - 6. Bundesdeutsche Fachtagung Plasmatechnologie, Wuppertal KW - Faserverstärkter Kunststoff KW - Glasfaserverstärkter Kunststoff Y1 - 1994 ER - TY - GEN A1 - Stollenwerk, Manfred A1 - Zell, Harald T1 - Veredeln von Kunststoffoberflächen mittels Mikrowellenplasmapolymerisation KW - Plasmapolymerisation KW - Mikrowellentechnik Y1 - 1994 N1 - Seminar zur FAKUMA der Firma Schall Kongress GmbH, Friedrichshafen, Oktober 1994 ER - TY - JOUR A1 - Michaeli, Walter A1 - Telgenbüscher, Klaus A1 - Stollenwerk, Manfred A1 - Mathar, Gerd A1 - Zell, Harald T1 - Plasmapolymerisierte Schichten: Neue Vielfalt der Funktionen JF - Schweizer Maschinenbau KW - Plasmapolymerisation Y1 - 1994 VL - 1994 IS - 41 SP - 90 EP - 93 ER - TY - GEN A1 - Stollenwerk, Manfred T1 - Das Abscheiden von kratzfesten, hydrophilen und hydrophoben Schichten mittels Plasmapolymerisation KW - Plasmapolymerisation Y1 - 1993 N1 - Beitrag zum Seminar “Plasmapolymerisation“ der Firma CP-Tec, München, November 1993 ER -