@inproceedings{RauschVerpoortWittrock2016,
  author    = {Rausch, Peter and Verpoort, Sven and Wittrock, Ulrich},
  title     = {Unimorph piezoelectric deformable mirrors for space telescopes},
  series = {Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, Proc. SPIE},
  volume    = {9904},
  booktitle = {Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, Proc. SPIE},
  doi       = {10.25974/fhms-923},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-9230},
  pages     = {990468},
  year      = {2016},
  abstract  = {We have developed, manufactured and tested a unimorph deformable mirror for space applications based on piezoelectric actuation. The mirror was designed for the correction of low-order Zernike modes with a stroke of several tens of micrometers over a clear aperture of 50 mm. It was successfully tested in thermal vacuum, underwent lifetime tests, and was exposed to random vibrations, sinusoidal vibrations, and to ionizing radiation. We report on design considerations, manufacturing of the mirror, and present the test results. Furthermore, we discuss critical design parameters, and how our mirror could be adapted to serve recently proposed space telescopes such as HDST and TALC.},
  language  = {de}
}
@inproceedings{SauvageAmiauxAustinetal.2016,
  author    = {Sauvage, Marc and Amiaux, J{\´e}rome and Austin, James and Bello, Mara and Bianucci, Giovanni and Chesn{\´e}, Simon and Citterio, Oberto and Collette, Christophe and Correia, S{\´e}bastien and Durand, Gilles A. and Molinari, Sergio and Pareschi, Giovanni and Penfornis, Yann and Sironi, Giorgia and Valsecchi, Guiseppe and Verpoort, Sven and Wittrock, Ulrich},
  title     = {A development roadmap for critical technologies needed for TALC: a deployable 20m annular space telescope},
  series = {Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, Proc. SPIE},
  volume    = {9904},
  booktitle = {Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, Proc. SPIE},
  doi       = {10.25974/fhms-924},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-9248},
  pages     = {99041L},
  year      = {2016},
  abstract  = {Astronomy is driven by the quest for higher sensitivity and improved angular resolution in order to detect fainter or smaller objects. The far-infrared to submillimeter domain is a unique probe of the cold and obscured Universe, harboring for instance the precious signatures of key elements such as water. Space observations are mandatory given the blocking effect of our atmosphere. However the methods we have relied on so far to develop increasingly larger telescopes are now reaching a hard limit, with the JWST illustrating this in more than one way (e.g. it will be launched by one of the most powerful rocket, it requires the largest existing facility on Earth to be qualified). With the Thinned Aperture Light Collector (TALC) project, a concept of a deployable 20 m annular telescope, we propose to break out of this deadlock by developing novel technologies for space telescopes, which are disruptive in three aspects: \&\#8226; An innovative deployable mirror whose topology, based on stacking rather than folding, leads to an optimum ratio of collecting area over volume, and creates a telescope with an eight times larger collecting area and three times higher angular resolution compared to JWST from the same pre-deployed volume; \&\#8226; An ultra-light weight segmented primary mirror, based on electrodeposited Nickel, Composite and Honeycomb stacks, built with a replica process to control costs and mitigate the industrial risks; \&\#8226; An active optics control layer based on piezo-electric layers incorporated into the mirror rear shell allowing control of the shape by internal stress rather than by reaction on a structure. We present in this paper the roadmap we have built to bring these three disruptive technologies to technology readiness level 3. We will achieve this goal through design and realization of representative elements: segments of mirrors for optical quality verification, active optics implemented on representative mirror stacks to characterize the shape correction capabilities, and mechanical models for validation of the deployment concept. Accompanying these developments, a strong system activity will ensure that the ultimate goal of having an integrated system can be met, especially in terms of (a) scalability toward a larger structure, and (b) verification philosophy.},
  language  = {en}
}
@inproceedings{DurandAmiauxSauvageetal.2016,
  author    = {Durand, G. and Amiaux, J. and Sauvage, M. and Austin, J. and Chesne, S. and Collette, C. and Helgouashl, S. and Pareschi, J. and Penfornis, Y. and Valsecchi, G. and Wittrock, U.},
  title     = {TALC a far-infrared 20m space telescope and the ELICSIR consortium to reach TRL 3},
  series = {Proceedings of the 37th ESA Antenna Workshop, Noordwijk, Netherlands},
  booktitle = {Proceedings of the 37th ESA Antenna Workshop, Noordwijk, Netherlands},
  doi       = {10.25974/fhms-925},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-9253},
  year      = {2016},
  abstract  = {Further space exploration in the far-infrared (FIR) requires larger apertures in order to improve the spatial resolution of captured images. To this purpose, the Thinned Aperture Light Collector (TALC) concept of a deployable annular telescope has been recently developed at CEA, which offers novel perspectives for FIR space missions. The consortium ELICSIR consortium of European institutes and companies has been created to improve the technological readiness level (TRL) of its key systems and components.},
  language  = {en}
}
@inproceedings{HolzapfelHeiderKrieteetal.2015,
  author    = {Holzapfel, Dominik and Heider, Thomas and Kriete, Berndt and Wallraven, Guido and Ahlke, Ulrich and Seidenst{\"u}cker, Christina and Richard, Daniel and Thomsen, Jochen and H{\"o}per, Jutta},
  title     = {W{\"a}rmewende im l{\"a}ndlichen Raum},
  series = {9. Steinfurter Bioenergiefachtagung},
  booktitle = {9. Steinfurter Bioenergiefachtagung},
  editor    = {Wetter, Christof and Br{\"u}gging, E.},
  doi       = {10.25974/fhms-854},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-8541},
  year      = {2015},
  abstract  = {Die H{\"a}lfte des Endenergiebedarfs in Deutschland wird zur Deckung des W{\"a}rmebedarfs der Wirtschaft und der privaten Haushalte ben{\"o}tigt; {\"u}berwiegend erzeugt durch Erdgas und Heiz{\"o}l. Gerade die energetisch nur unzureichend sanierten Einfamilienhausbest{\"a}nde des l{\"a}ndlichen Raumes bergen ein hohes Potenzial f{\"u}r Energieeinsparungs- und Effizienzsstrategien, um zum einen den Klimaschutz zu f{\"o}rdern und zum anderen eine nachhaltige wirtschaftliche Entwicklung des l{\"a}ndlichen Raumes anzustoßen. Die 9. Steinfurter Bioenergiefachtagung zeigt Strategien und Maßnahmen auf, die zeigen, wie eine "W{\"a}rmewende im l{\"a}ndlichen Raum" aussehen kann, welche Chancen und M{\"o}glichkeiten sie bietet und warum eine "W{\"a}rmewende" strategisch unabdingbar f{\"u}r das Gelingen des Generationenprojektes "Energiewende" insgesamt ist. Die Veranstaltung zeichnet den Pfad von konzeptionellen Ideen {\"u}ber Beispiele aus der Praxis bis hin zu zukunftsweisenden technologischen Ans{\"a}tzen: W{\"a}rmekataster Kreis Steinfurt KWK-Modellkommune Saerbeck Wege zum Bioenergiedorf - Praxisbeispiele Technische Voraussetzungen und M{\"o}glichkeiten f{\"u}r effiziente W{\"a}rmenetze im l{\"a}ndlichen Raum Finanzierungs- und F{\"o}rdermodelle f{\"u}r eine gelungene W{\"a}rmewende},
  subject      = {Bioenergiefachtagung},
  language  = {de}
}
@inproceedings{Gellenbeck2013,
  author    = {Gellenbeck, Klaus},
  title     = {Trends of changes in waste management and possible optimizations within the waste collection process},
  series = {Zbornik 3. Problemske Konference Komunalnega Gospodarstva},
  booktitle = {Zbornik 3. Problemske Konference Komunalnega Gospodarstva},
  publisher = {GZS},
  address   = {Ljubljana},
  doi       = {10.25974/fhms-705},
  year      = {2013},
  abstract  = {1. General waste management in Europe 2. Optimization process of disposal logistics a. Technologies (collection systems, vehicles etc.) b. Benchmarking c. Optimization 3. The future and sustainability of waste management},
  language  = {de}
}
@inproceedings{GellenbeckRiemenschneiderBernhold2013,
  author    = {Gellenbeck, Klaus and Riemenschneider, Frank and Bernhold, Torben},
  title     = {11. M{\"u}nsteraner Facility Management Tag},
  year      = {2013},
  abstract  = {Mittlerweile eine feste Institution und im Terminkalender vieler FM und CREM Verantwortlichen fixiert: Der M{\"u}nsteraner Facility Management Tag. Seit nunmehr 10 Jahren kommen Interessierte und Freunde der FM-Branche nach M{\"u}nster, um gemeinsam {\"u}ber Entwicklungen und Trends der Branche zu diskutieren. Der M{\"u}nsteraner Facility Management Tag verfolgt dabei folgende Schwerpunkte: Darstellung praxisnaher L{\"o}sungsans{\"a}tze Praxisorientierte Wissensvermittlung St{\"a}rkung des Transfers zwischen Theorie und Praxis unter dem Motto "Wissenschaft.Praktisch.Machen" Erfahrungsaustausch und best-practice},
  language  = {de}
}
@inproceedings{EstevezRebelGonzalezetal.2013,
  author    = {Estevez, F. and Rebel, G. and Gonz{\´a}lez, J. and Palomares, J.M. and Gl{\"o}sek{\"o}tter, P.},
  title     = {Body energy harvesting for WSN. State of art and examples},
  series = {Proceedings JCE 09/2013},
  booktitle = {Proceedings JCE 09/2013},
  publisher = {JCE},
  doi       = {10.25974/fhms-707},
  year      = {2013},
  abstract  = {Body energy harvesting for WSN. State of art and examples},
  language  = {en}
}
@inproceedings{VerpoortRauschWittrock2012,
  author    = {Verpoort, Sven and Rausch, Peter and Wittrock, Ulrich},
  title     = {Novel unimorph deformable mirror for space applications},
  series = {International Conference on Space Optics (ICSO), Proc. SPIE},
  volume    = {10564},
  booktitle = {International Conference on Space Optics (ICSO), Proc. SPIE},
  publisher = {SPIE},
  doi       = {10.25974/fhms-651},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-6516},
  pages     = {1056414-1},
  year      = {2012},
  abstract  = {We have developed a new type of unimorph deformable mirror, designed to correct for low-order Zernike modes. The mirror has a clear optical aperture of 50 mm combined with large peak-to-valley Zernike amplitudes of up to 35 μm. Newly developed fabrication processes allow the use of prefabricated super-polished and coated glass substrates. The mirror's unique features suggest the use in several stronomical applications like the precompensation of atmospheric aberrations seen by laser beacons and the use in woofer-tweeter systems. Additionally, the design enables an efficient correction of the inevitable wavefront error imposed by the floppy structure of primary mirrors in future large space-based telescopes. We have modeled the mirror by using analytical as well as finite element models. We will present design, key features and manufacturing steps of the deformable mirror.},
  language  = {en}
}
@inproceedings{GellenbeckSchulteNelles2012,
  author    = {Gellenbeck, Klaus and Schulte, Nico and Nelles, Michael},
  title     = {Entwicklung von prozessorientierten Qualit{\"a}tspr{\"u}fungen f{\"u}r die haushaltsnahe Abfall- und Wertstoffsammlung},
  series = {Tagungsband 15. Dialog Abfallwirtschaft Mecklenburg-Vorpommern},
  booktitle = {Tagungsband 15. Dialog Abfallwirtschaft Mecklenburg-Vorpommern},
  publisher = {Wiss.-Verl.},
  address   = {Puttbus},
  isbn      = {978-3-940364-26-5},
  doi       = {10.25974/fhms-686},
  pages     = {1 -- 18},
  year      = {2012},
  abstract  = {Die aktuelle Standardisierung und Normung von Dienstleistungen in der Abfall- und Wertstoffsammlung unter Angebe konkreter Service Levels verdeutlicht die Notwendigkeit von Qualit{\"a}tspr{\"u}fungen als Bestandteil des Qualit{\"a}tsmanagements in diesem Bereich. Die aktuelle Untersuchung hat das Ziel, praxisrelevante Qualit{\"a}tsmerkmale abzuleiten, in der Praxis messbare Indikatoren zu identifizieren und eine Methodik zur Durchf{\"u}hrung der Qualit{\"a}tspr{\"u}fungen zu entwickeln.},
  language  = {de}
}
@inproceedings{RauschVerpoortWittrock2012,
  author    = {Rausch, Peter and Verpoort, Sven and Wittrock, Ulrich},
  title     = {Novel unimorph adaptive mirrors for astronomy applications},
  series = {Proc. SPIE 8447, Adaptive Optics Systems III, 844764},
  booktitle = {Proc. SPIE 8447, Adaptive Optics Systems III, 844764},
  publisher = {SPIE},
  doi       = {10.25974/fhms-620},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-6203},
  year      = {2012},
  abstract  = {We have developed a new type of unimorph deformable mirror for the correction of low-order Zernike modes. The mirror features a clear aperture of 50 mm combined with large peak-to-valley amplitudes of up to 35 μm. Newly developed fabrication processes allow the use of prefabricated, coated, super-polished glass substrates. The mirror's unique features suggest the use in several astronomical applications like the compensation of atmospheric aberrations seen by laser beacons, low light astronomy, and the use in woofer-tweeter systems. Additionally, the design enables an efficient correction of the inevitable wave-front error imposed by the floppy structure of primary mirrors in future large space telescopes. We have modeled the mirror by using analytical as well as finite element models. We will present design, key features and manufacturing steps of the deformable mirror.},
  language  = {en}
}