TY - BOOK A1 - Specht, Dieter A1 - Forkel, M. A1 - Weber, H. A1 - Specht, Dieter T1 - Fokus - Forschungskapazitäten und -seviceleistungen KW - Arbeitssystemgestaltung Y1 - 1993 PB - Berlin; Heidelberg u. a. : Springer ER - TY - CHAP A1 - Gehrlich, Lukas A1 - Ohsiek, Susanne A1 - Klein, M. A1 - Geiss, M. A1 - Friedemann, Michael A1 - Kücher, Peter A1 - Schmeißer, Dieter T1 - Ultrathin TaN/Ta barrier modifications to fullfill next technology node requirements T2 - 2011 IEEE International Interconnect Technology Conference and 2011 Materials for Advanced Metallization (IITC/MAM 2011), Dresden, Germany, 8 - 12 May 2011 Y1 - 2011 SN - 978-1-4577-0503-8 U6 - https://doi.org/10.1109/IITC.2011.5940322 SP - 82 EP - 84 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Mai, Andreas A1 - Dauderstädt, Ulrike A1 - Pahner, D. A1 - Krellmann, M. A1 - Schmeißer, Dieter A1 - Wagner, M. T1 - In situ determination of laser induced degradation of micro-mirror arrays T2 - International Students and Young Scientists Workshop Photonics and Microsystems, Cottbus, Germany, 8 - 10 June 2011 N2 - The Fraunhofer Institute for Photonic Microsystems (Fraunhofer IPMS) develops spatial light modulators (SLMs) based on arrays of tiltable micro mirrors on a semiconductor chip. Typical applications are pattern generation for deepUV-laser mask writing or structured illumination in microscopy. Development and optimization of such SLMs requires detailed knowledge of the device behaviour under operating conditions. Here, the flatness of each single mirror effects the image resolution and contrast of the generated pattern and is amongst others a characteristic property of SLMs. In this context a surface topography measurement under laser exposure (in situ) was designed. The interferometric setup uses the phase-shift principle and allows a resolution in z-direction in the single-digit nanometer range. During irradiation with UV-laser light at 248 nm (KrF) and energy densities of up to 20 mJ/cm2 the change in single micro-mirrors topography was detected in situ. Measurementswith varying pulse energies were carried out to identify an impacton the device performance. In general, the setup is neither limited to a specific illumination wavelength nor to micro-mirrors as structures under test. KW - micro-mirror arrays KW - laser induced degradation Y1 - 2011 SN - 978-1-4577-1651-5 U6 - https://doi.org/10.1109/STYSW.2011.6155850 SP - 84 EP - 88 PB - IEEE CY - Piscataway, NJ ER - TY - RPRT A1 - Müller, Jörg A1 - Dieter, M. A1 - Bauhus, J. A1 - Spellmann, H. A1 - Möhring, B. A1 - Wagner, S. A1 - Wolf, Heino A1 - Niekisch, M. A1 - Weiger, H. A1 - Feindt, Peter H. A1 - Hamm, Ulrich A1 - Wätzold, Frank A1 - Wolters, Volkmar A1 - Engels, Eve-Marie A1 - Schraml, U. A1 - Lang, F. A1 - Pröbstl-Haider, U. A1 - Richter, K. T1 - Wege zu einem effizienten Waldnaturschutz in Deutschland. Stellungnahme Y1 - 2020 UR - http://www.fnr.de/fileadmin/allgemein/pdf/Effizienter_Waldnaturschutz_in_Deutschland.pdf PB - Wissenschaftlicher Beirat Waldpolitik und Wissenschaftlicher Beirat Biodiversität und Genetische Ressourcen beim BMEL ER - TY - JOUR A1 - Specht, Dieter A1 - Gruß, Christian M. F. T1 - Revenue Management - sind Ertragssteigerungen auch für produzierende Unternehmen möglich? Y1 - 2005 ER - TY - GEN A1 - Drexler, Christoph A1 - Shishkanova, Tatiana V. A1 - Lange, Christoph A1 - Danilov, Sergey N. A1 - Weiss, Dieter A1 - Ganichev, Sergey D. A1 - Mirsky, Vladimir M. T1 - Terahertz split-ring metamaterials as transducers for chemical sensors based on conducting polymers: a feasibility study with sensing of acidic and basic gases using polyaniline chemosensitive layer T2 - Microchimica Acta N2 - We report on the first application of terahertz metamaterials acting as transducers for chemical sensors based on conducting polymers. In our feasibility study aimed at sensing of gaseous hydrochloric and ammonia, a two-dimensional sensor metamaterial consisting of an array of split-ring resonators on the surface of undoped silicon wafer was prepared. The surface of the resonator was coated with a 150-μm layer of polyaniline. Binding of hydrogen chloride to polyaniline leads to distinct changes in the resonance frequency of the metamaterial. Measurements can be performed both in the reflection and transmission mode. A numerical simulation of the response revealed an increase of both the real and the imaginary components of the dielectric function of the polyaniline film. These changes are attributed to the transition from emaraldine base to emeraldine salt. The results demonstrate a new approach for formation of highly sensitive transducers for chemical sensors. Y1 - 2014 U6 - https://doi.org/10.5283/epub.31493 SN - 1436-5073 VL - 181 SP - 1857 EP - 1862 ER - TY - GEN A1 - Delaney, Tetyana L. A1 - Zimin, Denys A1 - Rahm, Michael A1 - Weiss, Dieter A1 - Wolfbeis, Otto S. A1 - Mirsky, Vladimir M. T1 - Capacitive detection in ultrathin chemosensors prepared by molecularly imprinted grafting photopolymerization T2 - Analytical Chemistry N2 - The usual applications of capacitive detection in chemo- and biosensors are based on changes in effective thickness of insulating layers due to adsorption of analyte onto receptors. Ultrathin chemosensors based on molecularly imprinted polymerization enable a realization of another capacitive approach that exploits changes in electrical capacitance due to modification of the dielectric constant of the polymer. Such chemosensors were prepared by photografted molecularly imprinted polymerization on the surface of gold electrodes. An adsorbed layer of hydrophobic photoinitiator (benzophenone) provided grafted polymerization on the surface of the alkanethiol-modified gold electrode. The chemosensors were characterized by cyclic voltammetry, impedance spectroscopy, and scanning electron and atomic force microscopy. Binding of analyte was detected by measurements of electrical capacitance. The results indicate a decrease of the dielectric constant of the polymer layer due to analyte binding up to 20%. Y1 - 2007 U6 - https://doi.org/10.1021/ac062143v SN - 0003-2700 SN - 1520-6882 VL - 79 IS - 8 SP - 3220 EP - 3225 ER - TY - CHAP A1 - Janke, Christian A1 - Goller, M. A1 - Martin, Ivo A1 - Gaun, Lilia A1 - Bestle, Dieter T1 - 3D-CFD Compressor Map Computation of a Multi-Stage Axial Compressor with Off-Design Adjusted Rotor Geometries T2 - ASME Turbo Expo 2016, Turbomachinery Technical Conference and Exposition, Volume 7A, Structures and Dynamics, Seoul, South Korea, June 13–17, 2016 Y1 - 2016 SN - 978-0-7918-4983-5 N1 - Paper No. GT2016-56745 PB - ASME CY - New York, NY [u.a.] ER - TY - GEN A1 - Hirsch, Thomas A1 - Zharnikov, Michael A1 - Shaporenko, Andrey A1 - Stahl, Joachim A1 - Weiss, Dieter A1 - Wolfbeis, Otto S. A1 - Mirsky, Vladimir M. T1 - Size-controlled electrochemical synthesis of metallic nanoparticles on molecular templates T2 - Angewandte Chemie International Edition N2 - Reduction on the spot: Planarly adsorbed thiolated porphyrin molecules (purple) incorporated in an insulating alkanethiol monolayer (blue) function as nanoelectrodes for the local reduction of metals (gray). This approach was applied for the in situ synthesis of nanoparticles of a predetermined size. Y1 - 2005 U6 - https://doi.org/10.1002/anie.200500912 SN - 1521-3773 VL - 44 IS - 41 SP - 6775 EP - 6778 ER - TY - GEN A1 - Hao, Qingli A1 - Rahm, Michael A1 - Weiss, Dieter A1 - Mirsky, Vladimir M. T1 - Morphology of electropolymerized poly (N-methylaniline) films T2 - Microchimica Acta N2 - The influence of polymerization conditionson the morphology of thin films of poly-(N-methylani-line) (PNMA) was studied. The films were prepared byelectropolymerization on gold and platinum electrodesand studied by optical and electron microscopy. It wasdemonstrated that the film morphology does notdepend on the polymerization rate or on the electrodemetal.However,itissensitivetothekindofcounterionofPNMA.Thepolymerscontainingacetate orchloridedo not form stable films. Polymer films containingphosphate or sulfate display inhomogeneous struc-tures. A formation of sprouts and ‘‘nanotubes’’ wasobserved for PNMA sulfate. The films formed byPNMA perchlorate are smooth and transparent(glass-likestructure).Asublayerof4-aminothiophenolincreases the adhesion of polymers to the gold surface. KW - Poly-(N-methylaniline) KW - polyaniline derivatives KW - electropolymerization KW - film morphology Y1 - 2003 U6 - https://doi.org/10.1007/s00604-003-0063-8 SN - 0026-3672 SN - 1436-5073 VL - 143 IS - 2 SP - 147 EP - 153 ER - TY - JOUR A1 - Specht, Dieter A1 - Stefanska, Renata A1 - Gruß, Christian M. F. T1 - Objektorientierter Ansatz zur Kostenbeeinflussung in den Frühphasen der Produktentstehung Y1 - 2008 ER - TY - JOUR A1 - Specht, Dieter A1 - Gruß, Christian M. F. A1 - Stefanska, Renata T1 - Erweiterte Zeiterfassungsmethodik zur Schwachstellenidentifikation im Prozessablauf Y1 - 2007 ER - TY - BOOK A1 - Specht, Dieter A1 - Gruß, Christian M. F. T1 - Modelüberblick zur optimalen Auftragsannahmeentscheidung für produzierende Unternehmen auf Basis des Revenue Management Ansatzes Y1 - 2007 SN - 978-3-937236-62-7 PB - München, TCW ER - TY - BOOK A1 - Specht, Dieter A1 - Gruß, Christian M. F. T1 - Revenue Management - eine Strategie für die Produktion in der Automobilindustrie? Y1 - 2007 SN - 978-3-8350-0932-5 PB - Deutscher Universitäts-Verlag CY - Wiesbaden ER - TY - JOUR A1 - Specht, Dieter A1 - Gruß, Christian M. F. T1 - Kontingentierungsansätze des Revenue Managements für produzierende Unternehmen Y1 - 2005 ER - TY - BOOK A1 - Specht, Dieter A1 - Forkel, M. A1 - Weber, H. T1 - Semantic Modelling of Technical Objects KW - wissensbasierte Systeme KW - KI-Repräsentation KW - CAD Y1 - 1993 SN - 3540977546 PB - Berlin; Heidelberg u. a. : Springer ER - TY - CHAP A1 - Möller, Detlev A1 - Wieprecht, Wolfgang A1 - Hofmeister, J. A1 - Kalaß, Dieter A1 - Elbing, F. A1 - Ulbricht, M. T1 - Fog dissipation by dry ice blasting process mechanism T2 - Proceedings, 2nd International Conference on Fog and Fog Collection, St. John’s, Canada, July 15 - 20, 2001 Y1 - 2001 SN - 0-9683887-1-X SP - 485 EP - 491 CY - North York ER - TY - GEN A1 - Cuypers, Daniel A1 - Dorp, Dennis H. von A1 - Tallarida, Massimo A1 - Brizzi, Simone A1 - Conard, Thierry A1 - Rodriguez, Leonard A1 - Mees, M. A1 - Arnauts, Sophia A1 - Schmeißer, Dieter A1 - Adelmann, Christoph A1 - De Gendt, Stefan T1 - Study of InP Surfaces after Wet Chemical Treatments T2 - ECS Journal of Solid State Science and Technology N2 - The influence of different wet chemical treatments (HCl, H₂SO₄, NH₄OH) on the composition of InP surfaces is studied by using synchrotron radiation photoemission spectroscopy (SRPES). It is shown that a significant amount of oxide remains present after immersion in a NH₄OH solution which is ascribed to the insolubility of In³⁺ at higher pH values. Acidic treatments efficiently remove the native oxide, although components like Pᴼ, Inᴼ and P(2±Δ)+ suboxides are observed. Alternatively, the influence of a passivation step in (NH₄)₂S solution on the surface composition was investigated. The InP surface after immersion into (NH₄)₂S results in fewer surface components, without detection of Pᴼ and P(2±Δ)+ suboxides. Finally, slight etching of InP surfaces in HCl/H₂O₂ solution followed by a native oxide removal step, showed no significant effect on the surface composition. KW - Synchrotron Radiation Photoelectron Spectroscopy KW - Scanning Tunneling Microscopy KW - InP KW - Wet chemical treatment Y1 - 2014 U6 - https://doi.org/10.1149/2.005401jss SN - 2162-8777 SN - 2162-8769 VL - 3 IS - 1 SP - N3016 EP - N3022 ER - TY - CHAP A1 - Rösken, Liz M. A1 - Rohrbeck, Magdalena A1 - Catena, Alberto A1 - Wehner, Stefan A1 - Fischer, Christian B. A1 - Richter, Matthias A1 - Städter, Matthias A1 - Schmeißer, Dieter T1 - Characterization of diamond-like carbon (DLC) coatings on industrial polyethylene and polyoxymethylene by SEM, AFM and NEXAFS T2 - Verhandlungen der Deutschen Physikalischen Gesellschaft N2 - Diamond-like carbon (DLC) coatings are often utilized to change the base properties of raw materials, e. g. to gain robust or chemically inert surfaces. Here the deposition of hard DLC layers on soft polymers is tested. The common industrial polymers polyethylene (PE) and polyoxymethylene (POM) serve as model substrates in the present work. In order to examine the effect of the carbonaceous layers on PE and POM thin diamond-like carbon films were realized via PECVD. The topography of the different coatings was detected by AFM and SEM uncovering the different influence of the substrate material, e. g. interlayer formation for PE. The composition of the surface structures were analyzed in more detail by NEXAFS, showing the hybridization of carbon atoms in chemical different surroundings from the pure polymer to the carbon coating. The comparison of carbon coated PE- and POM-composites enables valuable insights into the interaction between soft substrates and hard coatings. For the chosen settings in PECVD, POM showed incomplete coating, while on PE a very stable and robust composite has formed. KW - Diamond-like carbon (DLC) KW - soft plolymers KW - Scanning electron microscopy (SEM) KW - Atomic foce microscopy (AFM) KW - Near-edge X-Ray absorption spectroscopy (NEXAFS) Y1 - 2014 UR - http://www.dpg-verhandlungen.de/year/2014/conference/dresden/part/ds/session/43/contribution/20?lang=en SN - 0420-0195 PB - Deutsche Physikalische Gesellschaft CY - Bad Honnef ER - TY - JOUR A1 - Bieniek, Tomasz A1 - Beck, Romuald B. A1 - Jakubowski, Andrzej A1 - Konarski, Piotr A1 - Cwil, M. A1 - Hoffmann, Patrick A1 - Schmeißer, Dieter T1 - Application of r.f. plasma ultrashallow nitrogen ion implantation for pedestal oxynitride layer formation KW - ultrashallow KW - oxynitride Y1 - 2008 ER -