TY - GEN AU - Fuchs, Christian ID - 42609 T2 - Counterfire TI - “Twitter Mobs“ and the Structural Violence of Neoliberalism ER - TY - GEN AU - Fuchs, Christian ID - 42611 IS - 1 T2 - Philosophy of the Social Sciences TI - Review of “The problem of order in the global age. Systems and mechanisms“ (Andreas Pickel) VL - 41 ER - TY - GEN AU - Kraft, Kerstin ID - 42855 TI - ‚Grundlegende Betrachtungen zur Technik – Technomorphologische Analysen des Textilen’ ER - TY - GEN AU - Kraft, Kerstin ID - 42854 TI - ‚Glamour und Grauen. Das Erforschen und Ausstellen von Bekleidung aus den 1930er und 1940er Jahren’ ER - TY - GEN AU - Kraft, Kerstin ID - 42856 TI - Cutting Patterns ER - TY - JOUR AB - Nanoporous ZnO powders with high surface-to-mass ratios (SMR) between 15 and 70 m2 g−1 are synthesized, structurally characterized, and studied by time-resolved photoluminescence (PL). A strong dependence of the recombination dynamics and spectral width on SMR is observed at T = 10 K, and pronounced disorder-induced effects are found in the temperature dependence. Both the thermally induced shift of the PL maximum and the spectrally integrated PL intensity are interpreted by appropriate theoretical models. This consistent quantitative analysis of the experimental data yields a characteristic energy of 15 meV for the disorder scale in the nanoporous ZnO sample with an intermediate SMR. AU - Chernikov, Alexej AU - Horst, Swantje AU - Waitz, Thomas AU - Tiemann, Michael AU - Chatterjee, Sangam ID - 25965 JF - The Journal of Physical Chemistry C SN - 1932-7447 TI - Photoluminescence Properties of Ordered Mesoporous ZnO ER - TY - GEN AU - Sevignani, Sebastian AU - Kreilinger, Verena AU - Allmer, Thomas AU - Fuchs, Christian ID - 42970 SN - 2219-603X TI - Analysis of Existing Empirical Research Methods for Studying (Online) Privacy and Surveillance ER - TY - GEN AU - Allmer, Thomas ID - 42969 SN - 2219-603X TI - Towards a Critical Theory of Surveillance Studies ER - TY - JOUR AU - Allmer, Thomas ID - 43008 IS - 2 JF - tripleC TI - Critical Surveillance Studies in the Information Society VL - 9 ER - TY - BOOK ED - Sandoval , Marisol ED - Sevignani, Sebastian ED - Rehbogen, Alexander ED - Allmer, Thomas ED - Hager, Matthias ED - Kreilinger, Verena ID - 42946 TI - Bildung MACHT Gesellschaft ER - TY - JOUR AB - Due to the electrical, sensory and optical properties the interest on ZnO-based devices including thin-film transistors (TFT) aroused. The main concerns, when using ZnO nanoparticles (NP-ZnO) in TFT, are the low charge carrier mobility and the hysteresis when poly(4-vinylphenol) (PVP) is used as gate dielectric. It is well-known that the mobility in NP-ZnO films can be enhanced by the subsequent hydrothermal decomposition of zinc salts. The electrical behavior as a function of time and temperature is investigated, taking the NP-ZnO without addition of zinc acetate as reference. The addition of zinc acetate leads to a device with better performance, with increased drain current level and without the presence of the hysteresis in the transfer characteristic. The formation reaction was performed at a temperature of 200°C, which enables process compatibility to some plastic substrates. AU - Vidor, Fábio Fedrizzi AU - Wirth, Gilson Inácio AU - Wolff, Karsten AU - Hilleringmann, Ulrich ID - 39533 IS - 1 JF - ECS Transactions KW - General Medicine SN - 1938-5862 TI - Study on the Performance Enhancement of ZnO Nanoparticles Thin-Film Transistors VL - 39 ER - TY - JOUR AU - Wolff, K. AU - Hilleringmann, Ulrich ID - 39527 IS - 1 JF - Solid-State Electronics KW - Materials Chemistry KW - Electrical and Electronic Engineering KW - Condensed Matter Physics KW - Electronic KW - Optical and Magnetic Materials SN - 0038-1101 TI - Solution processed inverter based on zinc oxide nanoparticle thin-film transistors with poly(4-vinylphenol) gate dielectric VL - 62 ER - TY - CONF AU - Frers, Torsten AU - Hett, Thomas AU - Hilleringmann, Ulrich AU - Berth, Gerhard AU - Widhalm, Alex AU - Zrenner, Artur ID - 39536 T2 - 2011 Semiconductor Conference Dresden TI - Characterization of SiON integrated waveguides via FTIR and AFM measurements ER - TY - CONF AU - Wiegand, C. AU - Hangmann, C. AU - Hedayat, C. AU - Hilleringmann, Ulrich ID - 39528 T2 - 2011 Semiconductor Conference Dresden TI - Modeling and simulation of arbitrary ordered nonlinear charge-pump phase-locked loops ER - TY - CONF AU - Hilleringmann, Ulrich AU - Wolff, K. AU - Assion, F. AU - Vidor, F. F. AU - Wirth, G. I. ID - 39530 T2 - IEEE Africon '11 TI - Semiconductor nanoparticles for electronic device integration on foils ER - TY - CONF AU - Reinhold, C AU - Hangmann, C AU - Mager, T AU - Hedayat, C AU - Hilleringmann, Ulrich ID - 39537 T2 - Proc. 5th Int. Conf. on electromagnetic Near-field Characterization and Imaging (ICONIC) 2011 TI - Plane wave spectrum expansion from near-field measurements on no-planar lattices ER - TY - CHAP AU - Höink, Dominik AU - Jacob, Andreas ED - Meier, Christel ED - Wagner-Egelhaaf, Martina ID - 43117 SN - 9783050057132 T2 - Autorschaft. Ikonen – Stile – Institutionen TI - Krisen der Autorschaft bei Bruckner und Reger als Insignien der beginnenden musikalischen Moderne ER - TY - JOUR AU - Höink, Dominik ID - 43116 JF - Kirchenmusikalisches Jahrbuch SN - 978-3-506-77571-9 TI - Anton Bruckner und Franz Liszt. Zur Konstruktion kirchenmusikalischer Idealbilder VL - 95 ER - TY - JOUR AB - For numerous applications, the computation and provision of exact derivative information plays an important role for optimizing the considered system. This paper introduces the technique of algorithmic differentiation, a method to compute derivatives of arbitrary order within working precision. This derivative information will be combined with a calculus-based optimization algorithm to optimize a non-trivially shaped laser pulse which coherently steers the electron dynamics in a semiconductor quantum wire. Numerical results illustrating the cost for the derivative computation and the optimization process are presented and discussed. AU - Meier, Torsten AU - Reichelt, Matthias AU - Walther, A. ID - 43202 IS - 4 JF - Photonics and Nanostructures - Fundamentals and Applications TI - Calculus-based optimization of the electron dynamics in nanostructures VL - 9 ER - TY - CHAP AU - Hälterlein, Jens ED - Gäbler, Karsten ID - 43383 T2 - Gesellschaftliche Ökologie. Beiträge zur Konstruktion geographischer Wirklichkeiten. Sozialgeographische Manuskripte TI - Nachhaltiger Konsum. Neoliberale Subjekte zwischen grünem Lifestyle und gesellschaftlicher Verantwortung VL - 12 ER - TY - CHAP AU - Hälterlein, Jens ED - Feustel, Robert ED - Koppo, Nico ED - Schölzel, Hagen ID - 43382 T2 - Wir sind nie aktiv gewesen. Interpassivität zwischen Kunst- und Gesellschaftskritik TI - Weder Konsumismus noch Askese – Interpassivität! Über das kritische Potential des SUV-Fahrens ER - TY - GEN AU - Feustel, Robert AU - Schochow , Maximilian ID - 43385 IS - 1 T2 - BEHEMOTH A Journal on Civilisation TI - Zwischen Sprachspiel und Methode. Perspektiven der Diskursanalyse VL - 4 ER - TY - JOUR AB - This paper classifies the maximal finite subgroups of SP₂ₙ(Q) for 1⩽n⩽11 up to GL₂ₙ(Q) conjugacy in . AU - Kirschmer, Markus ID - 42798 IS - 2 JF - Experimental Mathematics KW - General Mathematics SN - 1058-6458 TI - Finite Symplectic Matrix Groups VL - 20 ER - TY - CHAP AU - Schroeter-Wittke, Harald ED - Danzeglocke, Klaus ED - Heye, Andreas ED - Reinke, Stephan A. ED - Schroeter-Wittke, Harald ID - 43835 T2 - Singen im Gottesdienst. Ergebnisse und Deutungen einer empirischen Untersuchung in evangelischen Gemeinden TI - Kommentar aus religionspädagogischer Sicht - Hymnologiedidaktische Überlegungen ER - TY - CHAP AU - Schroeter-Wittke, Harald ED - Markus, Peter ID - 43842 T2 - Perspektiven für ein Europa im Zeitalter der Globalisierung. 60 Jahre Evangelische Akademie Villigst / Iserlohn TI - Auf der Suche nach der Identität Europas - Kultur als transformatorische Kraft ER - TY - CHAP AU - Schroeter-Wittke, Harald ED - Klie, Thomas ED - Kumlehn, Martina ED - Kunz, Ralph ED - Schlag, Thomas ID - 43839 T2 - Lebenswissenschaft Praktische Theologie? TI - Den Schein wahren. Neun Responsorien auf das praktisch-theologische Interesse an den Oberflächen ER - TY - CHAP AU - Schroeter-Wittke, Harald ED - Kohlschmidt, Volker ED - Gündchen, Robert ID - 43840 T2 - So fern und doch so nah... Wider das Vergessen TI - Schaut hin! Rede für die Gedenkfeier am 2. April 2008 ER - TY - CHAP AU - Schroeter-Wittke, Harald AU - Arnhold, Oliver ED - Guttenberger, Gudrun ED - Schroeter-Wittke, Harald ID - 43837 T2 - Religionssensible Schulkultur TI - Wewelsburg - Religionssensibilität an einem Ort des Schreckens ER - TY - CHAP AU - Schroeter-Wittke, Harald AU - Marti, Andreas ED - Kunz, Ralph ED - Marti, Andreas ED - Plüss, David ID - 43841 T2 - Reformierte Liturgik - kontrovers TI - Hochkultur oder Popkultur? ER - TY - CHAP AU - Schroeter-Wittke, Harald ED - Guttenberger, Gudrun ED - Schroeter-Wittke, Harald ID - 43838 T2 - Religionssensible Schulkultur TI - Religionssensible Musik - Eine Klangreise ER - TY - CHAP AU - Schroeter-Wittke, Harald ED - Guttenberger, Gudrun ED - Schroeter-Wittke, Harald ID - 43836 T2 - Religionssensible Schulkultur TI - Was ist Religionssensibilität? ER - TY - CONF AB - The intensity dependence of optically-induced injection currents in semiconductor quantum wells is investigated numerically. Oscillatory behavior of the electron charge current transients as function of intensity and time is predicted and explained. AU - Pochwala, Michal AU - Duc, Huynh Thanh AU - Förstner, Jens AU - Meier, Torsten ID - 4312 KW - tet_topic_qw SN - 2160-8989 T2 - CLEO:2011 - Laser Applications to Photonic Applications TI - Intensity dependence of optically-induced injection currents in semiconductor quantum wells ER - TY - CONF AB - We present numerical results of the mutual coupling between photonic crystal cavities and semiconductor quantum dots. Normal mode splitting between a single cavity mode and a single quantum dot is shown under weak excitation, while under strong excitation Q‐factor dependent side bands appear, according to the AC‐Stark effect. Coupled photonic crystals, aligned parallel but displaced under a 30°‐angle for efficient coupling, show line splittings of all eigenmodes, if a single eigenmode is resonantly coupled to a single quantum dot. The mutual coupling of N resonant quantum dots to a single cavity mode results in a N−−√ scaling of the splitting, known from quantum optics, but corrected by the field amplitude fraction for not collocated quantum dots. AU - Declair, S. AU - Song, X. AU - Meier, Torsten AU - Förstner, Jens ID - 4043 IS - 123 KW - tet_topic_phc KW - tet_topic_qd T2 - THE FOURTH INTERNATIONAL WORKSHOP 2011 TI - Simulation of Mutual Coupling of Photonic Crystal Cavity Modes and Semiconductor Quantum Dots VL - 1398 ER - TY - JOUR AB - A novel adaptive wavelet based method is presented that allows us to compute eigenvalues and eigenvectors of the electronic Schrödinger equation. Our method outperforms direct discretization methods with equidistant grid spacings, in particular, for problems that involve several length scales. As an application we present numerical evaluations of the energetically lowest exciton states for ordered and disordered semiconductor quantum wires. AU - Meier, Torsten AU - Mollet, Christian AU - Kunoth, Angela ID - 44059 IS - 1 JF - AIP Conference Proceedings TI - Wavelet‐Based Adaptive Computations of the Excitonic Eigenstates of Disordered Semiconductor Quantum Wires VL - 1398 ER - TY - CONF AB - We present an ab-initio method for calculating nonlinear and nonlocal optical effects in metallic slabs with sub-wavelength thickness. We find a strong localization of the second-harmonic current at the metal-vacuum interface. AU - Wand, Mathias AU - Schindlmayr, Arno AU - Meier, Torsten AU - Förstner, Jens ID - 4048 KW - tet_topic_shg SN - 2160-8989 T2 - CLEO:2011 - Laser Applications to Photonic Applications TI - Theoretical approach to the ultrafast nonlinear optical response of metal slabs ER - TY - JOUR AB - This article will highlight various aspects of the production process of high performance active elements made of ultra high-strength steels. Focus is put on the processing of thick sheet metal regarding hot forming by means of punching, embossing, and forging processes as well as on thermo-mechanical treatment. Due to the material thickness of the semi-finished parts/blanks used and owing to the high strength of the materials (Rm > 2600 MPa) current production techniques and parameters from the field of thin sheet metal can only be limitedly be transferred and have therefore been specially investigated for this application. AU - Homberg, Werner AU - Rostek, Tim ID - 21456 JF - Key Engineering Materials SN - 1662-9795 TI - High Performance Active Elements for Agricultural Machines Made of Ultra High-Strength Steels ER - TY - CONF AU - Mennecart, Thomas AU - Rostek, Tim AU - Witulski, Jörg AU - Brosius, Alexander AU - Takkaya, A. Erman AU - Homberg, Werner ID - 21472 TI - Presshärten von Rohren und Profilen mittels formlos fester Stoffe ER - TY - CONF AU - Homberg, Werner AU - Rostek, Tim ID - 21474 T2 - Proceedings. of the 10th International Conference on Technology of Plasticity (ICTP) TI - High Performance Active Elements for Agricultural Machines Made of Ultra High-Strength Steels ER - TY - JOUR AU - Fuchs, Christian ID - 41658 IS - 6 JF - Sociology Compass TI - Teaching & Learning Guide for: New Media, Web 2.0 and Surveillance VL - 5 ER - TY - JOUR AU - Fuchs, Christian ID - 41657 IS - 2 JF - Sociology Compass TI - New Media, Web 2.0 and Surveillance VL - 5 ER - TY - CHAP AU - Fuchs, Christian ED - Erdogan, İrfan ID - 42407 T2 - İletişimi anlamak (Understanding communication), 4th revised TI - Preface ER - TY - GEN AU - Fuchs, Christian ID - 42723 SN - 2219-603X TI - The Political Economy of Privacy on Facebook ER - TY - GEN AU - Fuchs, Christian ID - 42724 SN - 2219-603X TI - The Political Economy of Privacy ER - TY - GEN AU - Sevignani, Sebastian AU - Kreilinger, Verena AU - Allmer, Thomas AU - Fuchs, Christian ID - 42722 SN - 2219-603X TI - Analysis of Existing Empirical Research Methods for Studying (Online) Privacy and Surveillance ER - TY - JOUR AB - We report the correlation of the aging of Pd-doped SnO2 methane sensors with the change of the oxidation state of Pd. Mesoporous SnO2 doped with palladium species was prepared and exposed to different gas mixtures at high temperature (600 °C) to simulate long term usage. After each exposure step a fraction of the sample was cooled down to “freeze” the current oxidation state of Pd which was then analyzed by X-ray Absorption Near-Edge Spectroscopy (XANES) using the 'white line' (i.e. the absorption peak corresponding to the transition from the 2p3/2 core level to unoccupied 4 d states) intensity of the L(III) edge as a probe for the oxidation state. The Pd oxidation state correlates with the response of the resistive SnO2 sensor to methane gas, as determined by measuring the gas response to different concentrations of methane. Samples treated with 5000 ppm methane in air show a significant reduction of Pd(II) to Pd(0), depending clearly on the carrier gas (synthetic air, pure nitrogen) and on the temperature (600 °C vs. 300 °C). AU - Wagner, T. AU - Bauer, M. AU - Sauerwald, T. AU - Kohl, C.-D. AU - Tiemann, Michael ID - 25962 JF - Thin Solid Films SN - 0040-6090 TI - X-ray absorption near-edge spectroscopy investigation of the oxidation state of Pd species in nanoporous SnO2 gas sensors for methane detection ER - TY - JOUR AB - Capacitive sensors are the most commonly used devices for the detection of humidity because they are inexpensive and the detection mechanism is very specific for humidity. However, especially for industrial processes, there is a lack of dielectrics that are stable at high temperature (>200 °C) and under harsh conditions. We present a capacitive sensor based on mesoporous silica as the dielectric in a simple sensor design based on pressed silica pellets. Investigation of the structural stability of the porous silica under simulated operating conditions as well as the influence of the pellet production will be shown. Impedance measurements demonstrate the utility of the sensor at both low (90 °C) and high (up to 210 °C) operating temperatures. AU - Wagner, Thorsten AU - Krotzky, Sören AU - Weiß, Alexander AU - Sauerwald, Tilman AU - Kohl, Claus-Dieter AU - Roggenbuck, Jan AU - Tiemann, Michael ID - 25964 JF - Sensors SN - 1424-8220 TI - A High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica ER - TY - JOUR AB - We report the synthesis of mesoporous tin dioxide (SnO2) materials with well-defined particle morphology. The products consist of uniform spheres with a diameter of 5 μm. The spheres are hierarchically porous with two distinct pore modes of 5.0 nm and 52 nm, respectively. This special porosity is the result of a synthesis procedure which involves a ‘hard templating’ (nanocasting) process. The product forms an approximately homogeneous monolayer of spheres on a sensor substrate and shows promising response to methane gas with low cross-sensitivity to water. The structural properties and gas-sensing performance are compared with a mesoporous SnO2 material without defined morphology, prepared by a ‘soft templating’ procedure. AU - Smått, J.-H. AU - Lindén, M. AU - Wagner, T. AU - Kohl, C.-D. AU - Tiemann, Michael ID - 25963 JF - Sensors and Actuators B: Chemical SN - 0925-4005 TI - Micrometer-sized nanoporous tin dioxide spheres for gas sensing ER - TY - JOUR AB - Mesoporous In2O3, synthesized by a nanocasting procedure, is used as a resistive gas sensor for ozone in very low concentrations (from 20 ppb to 2.4 ppm) at room temperature. Its sensing performance is substantially increased by illumination with blue light (460 nm, 2.7 eV). For low ozone concentrations the sensor response increases with increasing humidity. However, higher humidity also results in the occurrence of a saturation of the response at lower ozone concentrations; this is rationalized by assuming a poisoning of surface active sites by hydroxyl groups. AU - Wagner, T. AU - Hennemann, J. AU - Kohl, C.-D. AU - Tiemann, Michael ID - 25961 JF - Thin Solid Films SN - 0040-6090 TI - Photocatalytic ozone sensor based on mesoporous indium oxide: Influence of the relative humidity on the sensing performance ER - TY - JOUR AU - Allmer, Thomas ID - 43009 IS - 2 JF - Journal of Information, Communication & Ethics in Society TI - A Critical Contribution to Theoretical Foundations of Privacy Studies VL - 9 ER - TY - CONF AU - Meyer zu Hoberge, S. AU - Hilleringmann, Ulrich AU - Jochheim, C. AU - Liebich, M. ID - 39529 T2 - IEEE Africon '11 TI - Piezoelectric sensor array with evaluation electronic for counting grains in seed drills ER -