TY - CONF
AB - We overview the 3-year Meteracom project which
will provide traceability to the SI for THz communication
measurement parameters. The key objectives are to develop new
metrological methods to characterize the measurement systems,
system components and propagation channels. The final
objective is to develop metrology for functionality and signal
integrity of THz communication systems; particularly device
discovery and beam tracking, determination of physical layer
parameters for digital transmission and real-time performance
evaluation.
AU - Humphreys, David
AU - Berekovic, Mladen
AU - Kallfass, Ingmar
AU - Scheytt, Christoph
AU - Kuerner, Thomas
AU - Jukan, Admela
AU - Schneider, Thomas
AU - Kleine-Ostmann, Thomas
AU - Koch, Martin
AU - Thomae, Reiner
ID - 24053
T2 - Proc. 43-nd Meeting of the Wireless World Research Forum (WWRF)",
TI - An overview of the Meteracom Project
ER -
TY - CONF
AB - Targeting the feasible application of microwave RFID systems with MIMO reader technology for tracking small objects in multipath fading conditions, we present a fully integrated Analog Front-End (AFE) designed and fabricated in a standard 65-nm CMOS technology for low power passive RFID tags in the 5.8 GHz ISM band. A differential drive power scavenging unit is dimensioned to provide a 1.2 V rectified voltage resulting in a 1 V regulated voltage for the AFE while supplying a 50 μW load. Transistors with standard threshold voltage (V th ) have been used for implementation. Measurements of the fabricated circuits show a maximum Power Conversion Efficiency (PCE) of 71.8% at -12.5 dBm, and an input quality factor (Q-factor) of approximately 10.
AU - Haddadian, Sanaz
AU - Scheytt, Christoph
ID - 24057
T2 - IEEE International Conference on RFID Technology & Application (RFID-TA)
TI - A 5.8 GHz CMOS Analog Front-End Targeting RF Energy Harvesting for Microwave RFIDs with MIMO Reader
ER -
TY - CONF
AB - Embedded systems require a high energy efficiency in combination with an optimized performance. As such, Bit Manipulation Instructions (BMIs) were introduced for x86 and ARMv8 to improve the runtime efficiency and power dissipation of the compiled software for various applications. Though the RISC-V platform is meanwhile widely accepted for embedded systems application, its instruction set architecture (ISA) currently still supports only two basic BMIs.We introduce ten advanced BMIs for the RISC-V ISA and implemented them on Berkeley's Rocket CPU [1], which we synthesized for the Artix-7 FPGA and the TSMC 65nm cell library. Our RISC-V BMI definitions are based on an analysis and combination of existing x86 and ARMv8 BMIs. Our Rocket CPU hardware extensions show that RISC-V BMI extensions have no negative impact on the critical path of the execution pipeline. Our software evaluations show that we can, for example, expect a significant impact for time and power consuming cryptographic applications.
AU - Koppelmann, Bastian
AU - Adelt, Peer
AU - Müller, Wolfgang
AU - Scheytt, Christoph
ID - 24058
T2 - 29th International Symposium on Power and Timing Modeling, Optimization and Simulation (PATMOS)
TI - RISC-V Extensions for Bit Manipulation Instructions
ER -
TY - CONF
AB - We present a complete Visible Light Communication (VLC) system for experimental Vehicular VLC (V-VLC) research activities. Visible light is becoming an important technology complementing existing Radio Frequency (RF) technologies such as Cellular V2X (C-V2X) and Dedicated Short Range Communication (DSRC). In this scope, first works helped introducing new simulation models to explore V-VLC capabilities, technologies, and algorithms. Yet, experimental prototypes are still in an early phase. We aim bridging this gap with our system, which integrates a custom-made driver hardware, commercial vehicle light modules, and an Open Source signal processing implementation in GNU Radio, which explicitly offers rapid prototyping. Our system supports OFDM with a variety of Modulation and Coding Schemes (MCS) and is compliant to IEEE 802.11; this is in line with the upcoming IEEE 802.11 LC standard as well. In an extensive series of experiments, we assessed the communication performance by looking at realistic inter vehicle distances. Our results clearly show that our system supports even higher order MCS with very low error rates over long distances.
AU - Amjad, Muhammad Sohaib
AU - Tebruegge, Claas
AU - Memedi, Agon
AU - Kruse, Stephan
AU - Kress, Christian
AU - Scheytt, Christoph
AU - Dressler, Falko
ID - 24059
T2 - IEEE International Conference on Communications (ICC)
TI - An IEEE 802.11 Compliant SDR-Based System for Vehicular Visible Light Communications
ER -
TY - CONF
AB - In diesem Artikel stellen wir eine Methode zur nicht-invasiven dynamischen Speicher- und IO-Analyse mit QEMU für sicherheitskritische eingebettete Software für die RISC-V Befehlssatzarchitektur vor. Die Implementierung basiert auf einer Erweiterung des Tiny Code Generator (TCG) des quelloffenen CPU-Emulators QEMU um die dynamische Identifikation von Zugriffen auf Datenspeicher sowie auf an die CPU angeschlossene IO-Geräte. Wir demonstrieren die Funktionalität der Methode anhand eines Versuchsaufbaus, bei dem eine Schließsystemkontrolle mittels serieller UART-Schnittstelle an einen RISC-V-Prozessor angebunden ist. Dieses Szenario zeigt, dass ein unberechtigter Zugriff auf die UART-Schnittstelle frühzeitig aufgedeckt und ein Angriff auf eine Zugangskontrolle somit endeckt werden kann.
AU - Adelt, Peer
AU - Koppelmann, Bastian
AU - Müller, Wolfgang
AU - Scheytt, Christoph
ID - 24060
SN - 978-3-8007-4945-4
T2 - MBMV 2019-22.Workshop Methoden und Beschreibungssprachen zur Modellierung und Verifikation von Schaltungen und Systemen (MBMV 2019)
TI - Analyse sicherheitskritischer Software für RISC-V Prozessoren
ER -
TY - CONF
AU - Adelt, Peer
AU - Koppelmann, Bastian
AU - Müller, Wolfgang
AU - Scheytt, Christoph
AU - Driessen, Benedikt
ID - 24061
T2 - 2nd International Workshop on Embedded Software for Industrial IoT in conjunction with DATE 2019
TI - QEMU for Dynamic Memory Analysis of Security Sensitive Software
ER -
TY - JOUR
AB - It its current Version 3.1.0 QEMU supports RISC-V RV32GC and RV64GC software emulation in user and full system mode. We will first give an overview of the current state of the QEMU RISC-V implementation. Thereafter, we will present the DecodeTree tool, which will be available with the next QEMU release. DecodeTree is a code generator included in QEMU that can generate the program logic for extracting and decoding opcodes and operands from a formal instruction list of the target architecture. This enables the structured implementation of just-in-time compilations to guarantee that the QEMU implementation meets the ISA specification. As such, we completely replaced the existing RISC-V RV32GC and RV64GC implementations by DecodeTree generations in the next official QEMU release, which is expected in spring 2019. We will demonstrate the DecodeTree applications by the example of RISC-V ISA subset configurations.
AU - Adelt, Peer
AU - Koppelmann, Bastian
AU - Müller, Wolfgang
AU - Scheytt, Christoph
ID - 24063
JF - 2nd International Workshop on RISC-V Research Activities
TI - QEMU Support for RISC-V: Current State and Future Releases
VL - (Presentation)
ER -
TY - CHAP
AU - Hoyer, Kay-Peter
AU - Schaper, Mirko
ID - 24097
SN - 2367-1181
T2 - TMS 2019 148th Annual Meeting & Exhibition Supplemental Proceedings
TI - Alloy Design for Biomedical Applications in Additive Manufacturing
ER -
TY - CHAP
AU - Tasche, Lennart
AU - Hoyer, Kay-Peter
AU - Zhuravlev, Evgeny
AU - Grundmeier, Guido
AU - Schaper, Mirko
AU - Keßler, Olaf
ID - 24098
SN - 2367-1181
T2 - TMS 2019 148th Annual Meeting & Exhibition Supplemental Proceedings
TI - Surface Inoculation of Aluminium Powders for Additive Manufacturing Guided by Differential Fast Scanning Calorimetry
ER -
TY - GEN
ED - Eiber, Marion
ID - 24102
SN - 2509-8772
TI - Einfluss von Eigenspannungen und Oberflächenrauheit additiv gefertigter Komponenten aus 316L auf die Beschichtbarkeit und Ermüdungsfestigkeit,
ER -
TY - GEN
ED - Azarmi, Fardad
ID - 24103
SN - 9781510888005
TI - Adhesion of HVOF sprayed WC-Co coatings on additively processed 316L
ER -
TY - JOUR
AU - Inguva, Venkatesh
AU - Graceffa, Rita
AU - Schulz, Joachim
AU - Bilsel, Osman
AU - Perot, Blair J.
ID - 24122
JF - Journal of Mechanical Science and Technology
SN - 1738-494X
TI - Creating round focused micro-jets from rectangular nozzles
ER -
TY - CONF
AU - König, Jonas
AU - Malberg, Simon
AU - Martens, Martin
AU - Niehaus, Sebastian
AU - Krohn-Grimberghe, Artus
AU - Ramaswamy, Arunselvan
ID - 24141
T2 - Science and Information Conference
TI - Multi-stage reinforcement learning for object detection
ER -
TY - JOUR
AU - Knoke, Torben
AU - Kronberg, Alexander
AU - Glushenkov, Maxim
AU - Kenig, Eugeny
ID - 24272
IS - 5
JF - Applied Thermal Engineering
SN - 1359-4311
TI - On the design of heat exchanger equipment for novel-type isobaric expansion engines
VL - 167
ER -
TY - CONF
AU - Malatyali, Hatice
AU - Schöppner, Volker
ID - 24319
T2 - 27. Fachtagung Technomer
TI - Untersuchung des Dosierverhaltens von Carbonfaserrezyklaten für den Einsatz im gleichläufigen Doppel-schneckenextruder
ER -
TY - CONF
AU - Malatyali, Hatice
AU - Schöppner, Volker
AU - Tillmann, Wolfgang
AU - Kokalj, David
ID - 24322
T2 - SPE ANTEC
TI - Deveploment of thin film sensors: The influence of layer variation on the measurement quality for inline melt temperature measurements
ER -
TY - CONF
AU - Vogtschmidt, Sascha
AU - Schöppner, Volker
ID - 24326
TI - Vibration welding of components with angled areas in the direction of vibration
ER -
TY - CONF
AB - Liquid atomization is expected to be a key process in Flame Spray Pyrolysis, as it determines the primary droplet size and velocity distribution, which represent initial conditions for flame shape and temperature field. A well-defined manipulation of atomization may be achieved by variation of nozzle geometry, injection parameter or fluid properties. However, change of fluid properties, e.g. varying solvents or increasing the precursor concentration, also influences the final particle properties. In this work, the influence of precursor concentration on fluid properties, spray and particle formation in Flame Spray Pyrolysis is experimentally investigated. High-speed shadowgraphy and Phase-Doppler measurements are conducted in a semi-closed combustion chamber with a well-defined burner geometry (SpraySyn burner) that is based on a coaxial atomization principle. By adding precursor to the flammable solvent, resulting spray characteristics, flame shape and appearance are changed in color, shape and mean droplet size distribution. Compared to resulting mean droplet sizes of pure solvent mixtures (D32, 22 μm), mean droplet sizes in the center of the precursor flame at 30 mm above the burner are generally smaller (D32, 18 μm). Persisting high share of small droplets in the droplet size distribution are presented, that presumably origin from an accumulation of metal organic precursor at the droplet surface during combustion, that acts as a diffusive barrier for high volatility solvent and thus reduces droplet evaporation. Sufficiently high above the nozzle exit, increasing the precursor concentration does not affect the radial distribution of mean droplet sizes but leads to increased mean particle sizes. More precursor presumably leads to higher concentrations of prime particles in the flame, thus probability of particle collusion and agglomeration. High-speed imaging at nozzle exit revealed random fluctuations of initial jet diameter, paired with jet axis shifting around 1000 Hz. These superposed fluctuations determine the initial conditions for atomization, induce pulsations in the flame and thus initiate the entire chain of the particle synthesis process.
AU - Bieber, M.
AU - Tischendorf, R.
AU - Reddemann, M.
AU - Schmid, H.-J.
AU - Kneer, R.
ID - 24502
KW - FSP
KW - nanoparticle synthesis
KW - in situ measurements
TI - Influence of precursor concentration on spray and particle formation in flame spray pyrolysis
ER -
TY - GEN
AU - Menge, Dennis
AU - Walter, Rolf
AU - Schmid, Hans-Joachim
AU - Breuer, Ulf Paul
ID - 24628
TI - FVA-Nr. 813 I - Generative Verfahren zur Herstellung von Polymerbauteilen
VL - 1338
ER -
TY - JOUR
AB - Prerequisite for an efficient cooling energy system is the knowledge and optimal combination of different operating conditions of individual compression and free cooling chillers. The performance of cooling systems depends on their part-load performance and their condensing temperature, which are often not continuously measured. Recorded energy data remain unused, and manufacturers’ data differ from the real performance. For this purpose, manufacturer and real data are combined and continuously adapted to form part-load chiller models. This study applied a predictive optimization algorithm to calculate the optimal operating conditions of multiple chillers. A sprinkler tank offers the opportunity to store cold-water for later utilization. This potential is used to show the load shifting potential of the cooling system by using a variable electricity price as an input variable to the optimization. The set points from the optimization have been continuously adjusted throughout a dynamic simulation. A case study of a plastic processing company evaluates different scenarios against the status quo. Applying an optimal chiller sequencing and charging strategy of a sprinkler tank leads to electrical energy savings of up to 43%. Purchasing electricity on the EPEX SPOT market leads to additional costs savings of up to 17%. The total energy savings highly depend on the weather conditions and the prediction horizon.
AU - Peesel, Ron-Hendrik
AU - Schlosser, Florian
AU - Meschede, Henning
AU - Dunkelberg, Heiko
AU - Walmsley, Timothy
ID - 24632
JF - Energies
SN - 1996-1073
TI - Optimization of Cooling Utility System with Continuous Self-Learning Performance Models
ER -
TY - JOUR
AU - Schlosser, Florian
AU - Seevers, Jan-Peter
AU - Peesel, Ron-Hendrik
AU - Walmsley, Timothy Gordon
ID - 24633
JF - Energy
SN - 0360-5442
TI - System efficient integration of standby control and heat pump storage systems in manufacturing processes
ER -
TY - JOUR
AB - For increased total site heat integration, the optimal sizing and robust operation of a heat recovery loop (HRL) are prerequisites for economic efficiency. However, sizing based on one representative time series, not considering the variability of process streams due to their discontinuous operation, often leads to oversizing. The sensitive evaluation of the performance of an HRL by Monte Carlo (MC) simulation requires sufficient historical data and performance models. Stochastic time series are generated by distribution functions of measured data. With these inputs, one can then model and reliably assess the benefits of installing a new HRL. A key element of the HRL is a stratified heat storage tank. Validation tests of a stratified tank (ST) showed sufficient accuracy with acceptable simulation time for the variable layer height (VLH) multi-node (MN) modelling approach. The results of the MC simulation of the HRL system show only minor yield losses in terms of heat recovery rate (HRR) for smaller tanks. In this way, costs due to oversizing equipment can be reduced by better understanding the energy-capital trade-off.
AU - Schlosser, Florian
AU - Peesel, Ron-Hendrik
AU - Meschede, Henning
AU - Philipp, Matthias
AU - Walmsley, Timothy
AU - Walmsley, Michael
AU - Atkins, Martin
ID - 24634
JF - Energies
SN - 1996-1073
TI - Design of Robust Total Site Heat Recovery Loops via Monte Carlo Simulation
ER -
TY - CONF
AU - Schlosser, Florian
AU - Arpagaus, Cordin
AU - Walmsley, Timothy G.
ID - 24638
T2 - Chemical Engineering Transactions
TI - Heat Pump Integration by Pinch Analysis for Industrial Applications: A Review
VL - 76
ER -
TY - CONF
AU - Seevers, Jan-Peter
AU - Schlosser, Florian
ID - 24639
T2 - Chemical Engineering Transactions
TI - Integration of Heat Pump Storage Systems in Manufacturing Systems via Data Farming and Monte Carlo Simulation
VL - 76
ER -
TY - CONF
AU - Selleneit, Volker
AU - Stockl, Martin
AU - Philipp, Matthias
AU - Mast, Tanja
AU - Schlosser, Florian
ID - 24640
T2 - Chemical Engineering Transactions
TI - System Efficiency Rating of Industrial Utilities in Electricity Grids with a high share of Variable Renewable Energies
VL - 76
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Mühlhoff, Frederik Marvin
AU - Nordmeyer, T.
AU - Böhnke, Birte
AU - Krampe, Erhard
AU - Asad, Salman
ID - 25638
T2 - Eröffnung Plasma-Campus bei Plasmatreat GmbH
TI - InMould-Plasma
ER -
TY - JOUR
AU - Moritzer, Elmar
AU - Jilg, J.
AU - Sibbe, N.
ID - 25639
JF - PU MAGAZIN - International
TI - Investigation of the bond strength between injection moulded TPU and a reactive, castable polyurethane mass (PU)
ER -
TY - JOUR
AU - Moritzer, Elmar
AU - Jilg, J.
AU - Sibbe, N.
ID - 25640
IS - 4
JF - TPE Magazine international
TI - Investigation of the bond strength between injection moulded TPU and a reactive, castable polyurethane mass (PU)
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Hüttner, Matthias
AU - Krassmann, Dimitri
AU - Wittke, Marius
ID - 25689
T2 - Werkstoffwoche
TI - Lebensdauer von Composites und Composite-Metall-Hybridverbindungen
ER -
TY - BOOK
AU - Tobias Jenert, Gabi Reinmann, Tobias Schmohl
ID - 25734
KW - Hochschulbildung
KW - Bildungsforschung
KW - Hochschuldidaktik
KW - Hochschulbildung
KW - Hochschuldidaktik
KW - Forschung
KW - Lehren
KW - Hochschule
KW - Lehre
KW - Lernen
SN - 978-3-658-20309-2
TI - Hochschulbildungsforschung. Theoretische, methodologische und methodische Denkanstöße für die Hochschuldidaktik
ER -
TY - JOUR
AU - Brahm, T.
AU - Jenert, T.
ID - 25735
IS - 4
JF - Journal of Management Education
TI - Untangling Faculty Misinformation From an Educational Perspective: Rejoinder to ?The Menace of Misinformation: Faculty Misstatements in Management Education and Their Consequences?
VL - 43
ER -
TY - CONF
AU - Schöppner, Volker
AU - Bayazian, H.
AU - Yadegari, Ali
ID - 25736
T2 - 77th Annual Technical Conference of the Society of Plastics Engineers (ANTEC)
TI - Morphology Development in LLDPE Stretch Films Prepared with Different Cast Film Process Parameters
ER -
TY - CONF
AU - Schöppner, Volker
AU - Sporkmann, F.
AU - Heide, Alexander
ID - 25737
T2 - 35th International Conference of the Polymer Processing Society (PPS)
TI - New Analytical Approach to Calculate the Melt Flow within The Co-Rotating Twin Screw Extruder by Using the Performance Mapping Method
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Budde, Christopher
AU - Hüttner, Matthias
AU - Krassmann, Dimitri
ID - 25738
T2 - 9. Fügetechnisches Gemeinschaftskolloquium
TI - Nieten im Spritzgießprozess zur Verbindung von Hybridbauteilen aus Organoblechen und Metallen
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Hirsch, André
ID - 25745
T2 - DGM-Seminar für Fortgeschrittene
TI - Oberflächennachbearbeitung und Kleben von FDM-Bauteilen
ER -
TY - CONF
AU - Schöppner, Volker
AU - Bayazian, H.
AU - Yadegari, Ali
AU - Haddad, Hoda
ID - 25746
T2 - 35th PPS
TI - Orientation in LLDPE Cast Films Manufactured under Different Processing Parameters
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Westhues, T.
ID - 25747
T2 - 35th PPS
TI - Plant Design, Stress-Strain Characteristics in Compression and Lifecycle Description of Coiled Filament Mats Based on Production According to Fitzer
ER -
TY - JOUR
AU - Moritzer, Elmar
AU - Hirsch, André
AU - Heim, H.-P.
AU - Cherif, C.
AU - Truemper, W.
ID - 25748
JF - Welding in the World
SN - 1878-6669
TI - Plastic droplet welding: bond strength between plastic freeforming structures and continuous fiber-reinforced thermoplastic composites
ER -
TY - CONF
AU - Schöppner, Volker
AU - Sporkmann, F.
ID - 25750
T2 - VDI Wissensforum
TI - Scale up von Doppelschneckenmaschinen
ER -
TY - BOOK
AU - Schöppner, Volker
AU - Meilwes, P.
AU - Westhues, K.
ID - 25751
SN - 978-3-939382-14-0
TI - Schmelzefilter
ER -
TY - JOUR
AU - Schöppner, Volker
AU - Sporkmann, F.
ID - 25753
JF - Compounding World
SN - 2053-7174
TI - Simulation aids compounding success
ER -
TY - JOUR
AU - Schöppner, Volker
AU - Brüning, Florian
ID - 25754
JF - WAK Jahresmagazin
SN - 1618-8357
TI - Simulation der Feststoffförderung im Einschneckenextruder
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Wittke, M.
ID - 25755
T2 - 77th Annual Technical Conference of the Society of Plastics Engineers (ANTEC)
TI - Simulation-based Optimization of Advanced Mixing Elements on Single Screw Extruders
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Kartelmeyer, S.
AU - Hüttemann, B.
AU - Jaroschek, C.
ID - 25756
T2 - 26. Fachtagung über Verarbeitung und Anwendung von Polymeren
TI - Spritzgießwerkzeuge mit Heatpipe-Temperierung
ER -
TY - JOUR
AU - Moritzer, Elmar
AU - Jilg, J.
AU - Sibbe, N.
ID - 25757
JF - PU MAGAZIN
TI - Untersuchung der Verbundhaftung zwischen spritzgegossenen TPUs und einer reaktiven, gießfähigen Polyurethanmasse
ER -
TY - CONF
AU - Schöppner, Volker
AU - Westhues, K.
ID - 25759
T2 - VDI Wissensforum
TI - Vortrag „Aufschmelzen“ Optimierter Betrieb und Scale-up von Doppelschnecken-Extrudern
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Jilg, J.
ID - 25760
SN - 978-3-939382-14-0
T2 - 26. Fachtagung über Verarbeitung und Anwendung von Polymeren
TI - Zur Wirkung dehnströmungsinduzierender Spritzgießdüsen für glasfaserverstärktes Polypropylen im Sonderverfahren der Spritzgießdirektcompoundierung (SGDC)
ER -
TY - JOUR
AU - Büchel, Daniel
AU - Jakobsmeyer, Rasmus
AU - Döring, Michael
AU - Adams, Michael
AU - Rückert, Ulrich
AU - Baumeister, Jochen
ID - 26015
JF - International Journal of Performance Analysis in Sport
SN - 2474-8668
TI - Effect of playing position and time on-court on activity profiles in german elite team handball
ER -
TY - CHAP
AB - Since, in the presence of humidity the inter-particle processes are dominated by capillary forces, a fundamental understanding of the water adsorption and the capillary bridge formation is very important. However, the adsorbed water structure and thus the capillary bridge formation is influenced by various parameters like the particle morphology (e.g. particle size, roughness) as well as the surface chemistry (surface energy, adsorbate structure) and therefore needs to be analyzed on a submicroscopic or even molecular basis. A multi-scale approach ranging from experiments on an individual particle level (AFM and liquid bridge simulation) and investigations on small particle ensembles (combined QCM-D/FTIR) up to macroscopic description of bulk behavior is presented in this chapter. In this context, the combined in situ QCM-D/FTIR experiments are bridging the gap between experiments on an individual particle level and macroscopic bulk behavior. Variation of surface chemistry by means of adsorption of functional organic molecules allows for the correlation of macroscopic particle behavior to nanoscopic effects like the presence and structure of adsorbate layers as well as the formation of capillary bridges while keeping the disperse properties constant. Besides extensive experimental work, simulations of capillary bridges formed by condensation from humid air are presented. It is clearly shown that well known approximations which have been introduced for micron-sized particles are not valid any more for nano-scaled particles. The forces between nanoparticles by static liquid bridges and their dependency on particle size, contact angle, humidity and interparticle distance are discussed in detail. Furthermore, capillary forces during separation of particles are studied thoroughly and a constitutive law based on a contact stiffness allows the transfer to DEM simulations of wet powders. Finally, it is demonstrated by comparison to Molecular Dynamics simulations, that the used continuum approach to simulate capillary bridges might even be used down to particle sizes of a few nanometers, if some additional effects are considered correctly.
AU - Schmid, Hans-Joachim
AU - Grundmeier, Guido
AU - Dörmann, Michael
AU - Orive, Alejandro González
AU - de los Arcos, Teresa
AU - Torun, Boray
ID - 26098
T2 - Particles in Contact
TI - Understanding and Manipulation of Nanoparticle Contact Forces by Capillary Bridges
ER -
TY - JOUR
AU - Santandrea, Matteo
AU - Stefszky, Michael
AU - Roeland, Ganaël
AU - Silberhorn, Christine
ID - 26224
JF - New Journal of Physics
SN - 1367-2630
TI - Characterisation of fabrication inhomogeneities in Ti:LiNbO3 waveguides
ER -
TY - JOUR
AU - Santandrea, Matteo
AU - Stefszky, Michael
AU - Silberhorn, Christine
ID - 26225
JF - Optics Letters
SN - 0146-9592
TI - General framework for the analysis of imperfections in nonlinear systems
ER -
TY - JOUR
AU - Santandrea, Matteo
AU - Stefszky, Michael
AU - Ansari, Vahid
AU - Silberhorn, Christine
ID - 26226
JF - New Journal of Physics
SN - 1367-2630
TI - Fabrication limits of waveguides in nonlinear crystals and their impact on quantum optics applications
ER -
TY - JOUR
AU - Luo, Kai-Hong
AU - Ansari, Vahid
AU - Massaro, Marcello
AU - Santandrea, Matteo
AU - Eigner, Christof
AU - Ricken, Raimund
AU - Herrmann, Harald
AU - Silberhorn, Christine
ID - 26237
JF - Optics Express
SN - 1094-4087
TI - Counter-propagating photon pair generation in a nonlinear waveguide
ER -
TY - JOUR
AU - Sperling, Jan
AU - Vogel, W
ID - 26293
JF - Physica Scripta
SN - 0031-8949
TI - Quasiprobability distributions for quantum-optical coherence and beyond
ER -
TY - JOUR
AU - Cimini, Valeria
AU - Gianani, Ilaria
AU - Sbroscia, Marco
AU - Sperling, Jan
AU - Barbieri, Marco
ID - 26297
JF - Physical Review Research
SN - 2643-1564
TI - Measuring coherence of quantum measurements
ER -
TY - JOUR
AU - Rezai, Mohammad
AU - Sperling, Jan
AU - Gerhardt, Ilja
ID - 26298
JF - Quantum Science and Technology
SN - 2058-9565
TI - What can single photons do what lasers cannot do?
ER -
TY - JOUR
AU - Phillips, D. S.
AU - Walschaers, M.
AU - Renema, J. J.
AU - Walmsley, I. A.
AU - Treps, N.
AU - Sperling, Jan
ID - 26299
JF - Physical Review A
SN - 2469-9926
TI - Benchmarking of Gaussian boson sampling using two-point correlators
ER -
TY - JOUR
AU - Lorz, Lennart
AU - Meyer-Scott, Evan
AU - Nitsche, Thomas
AU - Potoček, Václav
AU - Gábris, Aurél
AU - Barkhofen, Sonja
AU - Jex, Igor
AU - Silberhorn, Christine
ID - 26500
JF - Physical Review Research
SN - 2643-1564
TI - Photonic quantum walks with four-dimensional coins
ER -
TY - JOUR
AU - Kruse, Regina
AU - Hamilton, Craig S.
AU - Sansoni, Linda
AU - Barkhofen, Sonja
AU - Silberhorn, Christine
AU - Jex, Igor
ID - 26501
JF - Physical Review A
SN - 2469-9926
TI - Detailed study of Gaussian boson sampling
ER -
TY - JOUR
AU - Nitsche, Thomas
AU - Geib, Tobias
AU - Stahl, Christoph
AU - Lorz, Lennart
AU - Cedzich, Christopher
AU - Barkhofen, Sonja
AU - Werner, Reinhard F
AU - Silberhorn, Christine
ID - 26508
JF - New Journal of Physics
SN - 1367-2630
TI - Eigenvalue measurement of topologically protected edge states in split-step quantum walks
ER -
TY - JOUR
AU - Tiedau, Johannes
AU - Meyer-Scott, Evan
AU - Nitsche, Thomas
AU - Barkhofen, Sonja
AU - Bartley, Tim J.
AU - Silberhorn, Christine
ID - 26509
JF - Optics Express
SN - 1094-4087
TI - A high dynamic range optical detector for measuring single photons and bright light
ER -
TY - BOOK
AU - Görel, Gamze
ID - 26636
SN - 9783658261740
TI - Inklusiver Unterricht aus Sicht von Grundschullehrkräften. Die Bedeutung von persönlichen Ressourcen
ER -
TY - JOUR
AU - Hellmich, Frank
AU - Löper, Marwin Felix
AU - Görel, Gamze
ID - 26640
IS - S1
JF - Journal of Research in Special Educational Needs
SN - 1471-3802
TI - The role of primary school teachers’ attitudes and self‐efficacy beliefs for everyday practices in inclusive classrooms – a study on the verification of the ‘Theory of Planned Behaviour’
VL - 19
ER -
TY - CHAP
AU - Hellmich, Frank
AU - Löper, Marwin Felix
AU - Hoya, Fabian Karl
ED - Ehmke, Timo
ED - Kuhl, Poldi
ED - Pietsch, Marcus
ID - 26668
T2 - Lehrer. Bildung. Gestalten. Beiträge zur empirischen Forschung in der Lehrerbildung
TI - Unterscheiden sich Studentinnen und Studenten des Lehramts an Grund- und Förderschulen in ihren Einstellungen und ihren Selbstwirksamkeitsüberzeugungen in Bezug auf den inklusiven Unterricht?
ER -
TY - JOUR
AU - Hellmich, Frank
AU - Löper, Marwin Felix
ID - 26706
IS - 2
JF - British Journal of Special Education
SN - 0952-3383
TI - Children’s attitudes towards peers with learning disabilities - the role of perceived parental behaviour, contact experiences and self-efficacy beliefs
VL - 46
ER -
TY - BOOK
ED - Schwab, Susanne
ED - Nel, Mirna
ED - Hellmich, Frank
ID - 26723
TI - Social Participation of Students with Special Educational Needs in Mainstream Education
ER -
TY - THES
AB - Im Rahmen dieser Arbeit wurden die mikrostrukturelle Entwicklung und die daraus resultierenden mechanischen Eigenschaften der im SLM® Verfahren (Selective Laser Melting) verarbeiteten Nickelbasis-Superlegierung Inconel 718 untersucht. Anschließend wurde der Einfluss des HIP-Prozesses (Heißisostatisches Pressen) auf die Porosität, die Mikrostruktur und die mechanischen Eigenschaften analysiert. Da der HIP-Prozess oberflächennahe Poren nicht schließen kann, wurden ausgewählte Proben durch das Arc-PVD-Verfahren (Physical Vapor Deposition) mit einer Ni-20Cr Beschichtung gekapselt. Da die typischen Zellstrukturen zusammen mit den γ´´- Ausscheidungen nach dem Lösungsglühen mit anschließender Ausscheidungshärtung auftreten, konnte die höchste Streckgrenze (Rp0,2) unter quasistatischer Belastung bei Raumtemperatur (RT) sowie bei 650 °C ermittelt werden. Unter zyklischer Belastung zeigen die beschichteten und heißisostatisch gepressten Proben die geringste Ermüdungsfestigkeit bei RT, sowohl vor als auch nach der Ausscheidungshärtung. Im lösungsgeglühten und anschließend ausscheidungsgehärteten Zustand weist das Material die höchste Lebensdauer, insbesondere bei einer niedrigen Dehnungsamplitude (Δε/2 = ±0,35 %), bei 650 °C auf.
AU - Aydinöz, Mehmet Esat
ID - 26898
KW - Additive Fertigung
KW - Laserschmelzverfahren
KW - Nickelbasis-Superlegierung
KW - Inconel 718
KW - Mikrostruktur
KW - mechanische Eigenschaften
KW - Heißisostatisches Pressen
KW - Beschichtung
SN - 978-3-8440-6475-9
TI - Mikrostrukturelle und mechanische Eigenschaften der im Laserschmelzverfahren verarbeiteten Inconel 718 Nickelbasis-Superlegierung
VL - 10
ER -
TY - CONF
AB - For optimal placement and orchestration of network services, it is crucial
that their structure and semantics are specified clearly and comprehensively
and are available to an orchestrator. Existing specification approaches are
either ambiguous or miss important aspects regarding the behavior of virtual
network functions (VNFs) forming a service. We propose to formally and
unambiguously specify the behavior of these functions and services using
Queuing Petri Nets (QPNs). QPNs are an established method that allows to
express queuing, synchronization, stochastically distributed processing delays,
and changing traffic volume and characteristics at each VNF. With QPNs,
multiple VNFs can be connected to complete network services in any structure,
even specifying bidirectional network services containing loops.
We discuss how management and orchestration systems can benefit from our
clear and comprehensive specification approach, leading to better placement of
VNFs and improved Quality of Service. Another benefit of formally specifying
network services with QPNs are diverse analysis options, which allow valuable
insights such as the distribution of end-to-end delay. We propose a tool-based
workflow that supports the specification of network services and the automatic
generation of corresponding simulation code to enable an in-depth analysis of
their behavior and performance.
AU - Schneider, Stefan Balthasar
AU - Sharma, Arnab
AU - Karl, Holger
AU - Wehrheim, Heike
ID - 3287
T2 - 2019 IFIP/IEEE International Symposium on Integrated Network Management (IM)
TI - Specifying and Analyzing Virtual Network Services Using Queuing Petri Nets
ER -
TY - JOUR
AB - Existing approaches and tools for the generation of approximate circuits often lack generality and are restricted to certain circuit types, approximation techniques, and quality assurance methods. Moreover, only few tools are publicly available. This hinders the development and evaluation of new techniques for approximating circuits and their comparison to previous approaches. In this paper, we first analyze and classify related approaches and then present CIRCA, our flexible framework for search-based approximate circuit generation. CIRCA is developed with a focus on modularity and extensibility. We present the architecture of CIRCA with its clear separation into stages and functional blocks, report on the current prototype, and show initial experiments.
AU - Witschen, Linus Matthias
AU - Wiersema, Tobias
AU - Ghasemzadeh Mohammadi, Hassan
AU - Awais, Muhammad
AU - Platzner, Marco
ID - 3585
JF - Microelectronics Reliability
KW - Approximate Computing
KW - Framework
KW - Pareto Front
KW - Accuracy
SN - 0026-2714
TI - CIRCA: Towards a Modular and Extensible Framework for Approximate Circuit Generation
VL - 99
ER -
TY - CHAP
AU - Vennemann, Mario
AU - Eickelmann, Birgit
AU - Bos, Wilfried
AU - Wendt, Heike
ED - Donie, Christian
ED - Foerster, Frank
ED - Obermayr, Marlene
ED - Deckwerth, Anne
ED - Kammermeyer, Gisela
ED - Lenske, Gerlinde
ED - Leuchter, Miriam
ED - Wildemann, Anja
ID - 28790
T2 - Grundschulpädagogik zwischen Wissenschaft und Transfer (Jahrbuch Grundschulforschung)
TI - Die Relevanz schulischer Kompositionsmerkmale für die Entwicklung mathematischer Kompetenzen am Ende der Grundschulzeit
VL - 23
ER -
TY - CHAP
AU - Lorenz, Ramona
AU - Endberg, Manuela
AU - Eickelmann, Birgit
ED - Ehmke, Timo
ED - Kuhl, Poldi
ED - Pietsch, Marcus
ID - 28791
T2 - Lehrer. Bildung. Gestalten. Beiträge zur empirischen Forschung in der Lehrerbildung
TI - Medienbezogene Kompetenzen von Lehrpersonen – Empirische Befunde und Perspektiven für die Lehrerausbildung
ER -
TY - CHAP
AU - Drossel, Kerstin
AU - Eickelmann, Birgit
ED - Ehmke, Timo
ED - Kuhl, Poldi
ED - Pietsch, Marcus
ID - 28792
T2 - Lehrer. Bildung. Gestalten. Beiträge zur empirischen Forschung in der Lehrerbildung
TI - Die Implementation digitaler Medien gestalten: zur Bedeutung der Einstellungen von Fremdsprachenlehrkräften
ER -
TY - CHAP
AU - Vennemann, Mario
AU - Schwippert, Knut
AU - Eickelmann, Birgit
AU - Massek, Corinna
ED - Eickelmann, Birgit
ED - Bos, Wilfried
ED - Gerick, Julia
ED - Goldhammer, Frank
ED - Schaumburg, Heike
ED - Schwippert, Knut
ED - Senkbeil, Martin
ED - Vahrenhold, Jan
ID - 28795
T2 - ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking
TI - Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern mit und ohne Migrationshintergrund im zweiten internationalen Vergleich
ER -
TY - CHAP
AU - Senkbeil, Martin
AU - Drossel, Kerstin
AU - Eickelmann, Birgit
AU - Vennemann, Mario
ED - Eickelmann, Birgit
ED - Bos, Wilfried
ED - Gerick, Julia
ED - Goldhammer, Frank
ED - Schaumburg, Heike
ED - Schwippert, Knut
ED - Senkbeil, Martin
ED - Vahrenhold, Jan
ID - 28797
T2 - ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking
TI - Soziale Herkunft und computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich
ER -
TY - CHAP
AU - Gerick, Julia
AU - Massek, Corinna
AU - Eickelmann, Birgit
AU - Labusch, Amelie
ED - Eickelmann, Birgit
ED - Bos, Wilfried
ED - Gerick, Julia
ED - Goldhammer, Frank
ED - Schaumburg, Heike
ED - Schwippert, Knut
ED - Senkbeil, Martin
ED - Vahrenhold, Jan
ID - 28799
T2 - ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking
TI - Computer- und informationsbezogene Kompetenzen von Mädchen und Jungen im zweiten internationalen Vergleich
ER -
TY - CHAP
AU - Eickelmann, Birgit
AU - Bos, Wilfried
AU - Gerick, Julia
AU - Goldhammer, Frank
AU - Schaumburg, Heike
AU - Schwippert, Knut
AU - Senkbeil, Martin
AU - Vahrenhold, Jan
ED - Eickelmann, Birgit
ED - Bos, Wilfried
ED - Gerick, Julia
ED - Goldhammer, Frank
ED - Schaumburg, Heike
ED - Schwippert, Knut
ED - Senkbeil, Martin
ED - Vahrenhold, Jan
ID - 28814
T2 - ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking
TI - Anlage, Forschungsdesign und Durchführung der Studie ICILS 2018
ER -
TY - BOOK
ED - Eickelmann, Birgit
ED - Bos, Wilfried
ED - Gerick, Julia
ED - Goldhammer, Frank
ED - Schaumburg, Heike
ED - Schwippert, Knut
ED - Senkbeil, Martin
ED - Vahrenhold, Jan
ID - 28819
TI - ICILS 2018 #Deutschland – Computer- und informationsbezogene Kompetenzen von Schülerinnen und Schülern im zweiten internationalen Vergleich und Kompetenzen im Bereich Computational Thinking
ER -
TY - DATA
AU - Gerick, Julia
AU - Eickelmann, Birgit
AU - Steglich, Emilie
ID - 28826
TI - Kurzzusammenfassung der Ergebnisse der prozessbegleitenden wissenschaftlichen Evaluation der Einführung von LOGINEO NRW an Pilotschulen
ER -
TY - DATA
AU - Gerick, Julia
AU - Eickelmann, Birgit
AU - Steglich, Emilie
ID - 28828
TI - Abschlussbericht zur prozessbegleitenden Evaluation der Einführung von LOGINEO NRW an Pilotschulen
ER -
TY - CHAP
AU - Eickelmann, Birgit
ED - Priebe, Botho
ED - Böttcher, Wolfgang
ED - Heinemann, Ulrich
ED - Kubina, Christian
ID - 28830
T2 - Steuerung und Qualitätsentwicklung im Fortbildungssystem. Probleme und Befunde – Standardbildung und Lösungsansätze
TI - Lehrerfortbildung im Kontext der digitalen Transformation: Herausforderungen, Befunde und Perspektiven für eine zukunftsfähige Gestaltung des Bildungssystems
ER -
TY - JOUR
AU - Brauer, Sascha
ID - 2916
JF - Theoretical Computer Science
SN - 0304-3975
TI - Complexity of single-swap heuristics for metric facility location and related problems
VL - 754
ER -
TY - JOUR
AU - Perrar, Ines
AU - Schmitting, Sarah
AU - Della Corte, Karen W.
AU - Buyken, Anette
AU - Alexy, Ute
ID - 27003
JF - European Journal of Nutrition
SN - 1436-6207
TI - Age and time trends in sugar intake among children and adolescents: results from the DONALD study
ER -
TY - JOUR
AU - Wong, Tommy H. T.
AU - Buyken, Anette
AU - Brand-Miller, Jennie C.
AU - Louie, Jimmy Chun Yu
ID - 27004
JF - European Journal of Nutrition
SN - 1436-6207
TI - Is there a soft drink vs. alcohol seesaw? A cross-sectional analysis of dietary data in the Australian Health Survey 2011–12
ER -
TY - JOUR
AB - ABSTRACT
Background
There is controversy on the relevance of dietary sugar intake for cardiometabolic health.
Objective
The aim of this network meta-analysis (NMA) was to assess how isocaloric substitutions of dietary sugar with other carbohydrates affect cardiometabolic risk factors, comparing different intervention studies.
Methods
We included randomized controlled trials (RCTs) investigating the isocaloric effect of substituting dietary sugars (fructose, glucose, sucrose) with other sugars or starch on cardiometabolic risk markers, including LDL cholesterol, triacylglycerol (TG), fasting glucose (FG), glycated hemoglobin (HbA1c), insulin resistance (HOMA-IR), uric acid, C-reactive protein (CRP), alanine transaminase (ALT), aspartate transaminase (AST), and liver fat content. To identify the most beneficial intervention for each outcome, random-effects NMA was conducted by calculating pooled mean differences (MDs) with 95% CIs, and by ranking the surface under the cumulative ranking curves (SUCRAs). The certainty of evidence was evaluated using the Confidence In Network Meta-Analysis tool.
Results
Thirty-eight RCTs, including 1383 participants, were identified. A reduction in LDL-cholesterol concentrations was shown for the exchange of sucrose with starch (MD: −0.23 mmol/L; 95% CI: −0.38, −0.07 mmol/L) or fructose with starch (MD: −0.22 mmol/L; 95% CI: −0.39, −0.05 mmol/L; SUCRAstarch: 98%). FG concentrations were also lower for the exchange of sucrose with starch (MD: −0.14 mmol/L; 95% CI: −0.29, 0.01 mmol/L; SUCRAstarch: 91%). Replacing fructose with an equivalent energy amount of glucose reduced HOMA-IR (MD: −0.36; 95% CI: −0.71, −0.02; SUCRAglucose: 74%) and uric acid (MD: −23.77 µmol/L; 95% CI: −44.21, −3.32 µmol/L; SUCRAglucose: 93%). The certainty of evidence was rated very low to moderate. No significant effects were observed for TG, HbA1c, CRP, ALT, and AST.
Conclusions
Our findings indicate that substitution of sucrose and fructose with starch yielded lower LDL cholesterol. Insulin resistance and uric acid concentrations were beneficially affected by replacement of fructose with glucose. Our findings are limited by the very low to moderate certainty of evidence. This review was registered at www.crd.york.ac.uk/prospero as CRD42018080297.
AU - Schwingshackl, Lukas
AU - Neuenschwander, Manuela
AU - Hoffmann, Georg
AU - Buyken, Anette
AU - Schlesinger, Sabrina
ID - 27005
JF - The American Journal of Clinical Nutrition
SN - 0002-9165
TI - Dietary sugars and cardiometabolic risk factors: a network meta-analysis on isocaloric substitution interventions
ER -
TY - JOUR
AB - Trend analyses suggest that free sugar (FS) intake—while still exceeding 10%E—has decreased among German children and adolescents since 2005, yet that intakes may shift from sugars naturally occurring in foods to added sugars as children age. Thus, we analysed time and age trends in FS intake (%E) from food groups among 3–18 year-olds (1985–2016) using 10,761 3-day dietary records from 1312 DONALD participants (660 boys, 652 girls) by use of polynomial mixed-effects regression models. Among girls, FS from sugar & sweets decreased from 1985 to 2016 (linear trend p < 0.0001), but not among boys (p > 0.05). In the total sample, FS intake from juices increased until 2000 and decreased since 2005 (linear, quadratic trend p < 0.0001). FS from sugar sweetened beverages (SSB) decreased non-linearly from 1985 to 2016 (girls: linear, quadratic, cubic trend p < 0.0001; boys: linear, quadratic, cubic trend p < 0.02). Younger children consumed more FS from juices than older ones, who had a higher FS intake from SSB. FS intake from sugar & sweets increased until early adolescence and decreased afterwards. Since sugar & sweets represent the main source of FS intake and the source with the least pronounced decline in intake, public health measures should focus on these products.
AU - Perrar, Ines
AU - Schadow, Alena M.
AU - Schmitting, Sarah
AU - Buyken, Anette
AU - Alexy, Ute
ID - 27006
JF - Nutrients
SN - 2072-6643
TI - Time and Age Trends in Free Sugar Intake from Food Groups among Children and Adolescents between 1985 and 2016
ER -
TY - JOUR
AB - Abstract
Background
Blood immunoreactive biomarkers, such as C-reactive protein (CRP), and metabolic abnormalities have been associated with schizophrenia. Studies comprehensively and bidirectionally probing possible causal links between such blood constituents and liability to schizophrenia are lacking.
Methods
To disentangle putative causal links between CRP blood levels and schizophrenia in both directions, we conducted multiple univariable Mendelian-randomization (MR) analyses, ranging from fixed-effect to inverse variance-weighted (IVW), weighted-median, MR Egger and generalized summary-data-based Mendelian-randomization (GSMR) models. To prioritize metabolic risk factors for schizophrenia, a novel multivariable approach was applied: multivariable Mendelian-randomization–Bayesian model averaging (MR-BMA).
Results
All forward univariable MR analyses consistently showed that CRP has a protective effect on schizophrenia, whereas reverse MR analyses consistently suggested absent causal effects of schizophrenia liability on CRP blood levels. Using MR-BMA, as the top protective factors for schizophrenia we prioritized leucine and as the prime risk-factor triglycerides in medium very-low-density lipoprotein (VLDL). The five best-performing MR-BMA models provided one additional risk factor: triglycerides in large VLDL; and two additional protective factors: citrate and lactate.
Conclusions
Our results add to a growing body of literature hinting at metabolic changes—in particular of triglycerides—independently of medication status in schizophrenia. We also highlight the absent effects of genetic liability to schizophrenia on CRP levels.
AU - Lin, Bochao D
AU - Alkema, Anne
AU - Peters, Triinu
AU - Zinkstok, Janneke
AU - Libuda, Lars
AU - Hebebrand, Johannes
AU - Antel, Jochen
AU - Hinney, Anke
AU - Cahn, Wiepke
AU - Adan, Roger
AU - Luykx, Jurjen J
ID - 27023
JF - International Journal of Epidemiology
SN - 0300-5771
TI - Assessing causal links between metabolic traits, inflammation and schizophrenia: a univariable and multivariable, bidirectional Mendelian-randomization study
ER -
TY - JOUR
AU - Kalhoff, Hermann
AU - Mesch, Christina M.
AU - Stimming, Madlen
AU - Israel, Andreas
AU - Spitzer, Christoph
AU - Beganovic, Latifa
AU - Perez, Rocio Estella
AU - Koletzko, Berthold
AU - Warschburger, Petra
AU - Kersting, Mathilde
AU - Libuda, Lars
ID - 27024
JF - European Journal of Clinical Nutrition
SN - 0954-3007
TI - Effects of LC-PUFA supply via complementary food on infant development—a food based intervention (RCT) embedded in a total diet concept
ER -
TY - CONF
AU - Drewel, Marvin
AU - Gausemeier, Jürgen
AU - Vaßholz, Mareen
AU - Homburg, Nils
ED - Gausemeier, Jürgen
ED - Bauer, Wilhelm
ED - Dumitrescu, Roman
ID - 27101
T2 - Symposium für Vorausschau und Technologieplanung, Band 15
TI - Einstieg in die Plattformökonomie
ER -
TY - JOUR
AB - Mithilfe von Industrie 4.0-Reifegradmodellen können Unternehmen ihren Leistungsstand im Kontext Industrie 4.0 systematisch erfassen. Mit der Ermittlung des Status Quos ist in aller Regel die Frage verbunden „Wo wollen wir zukünftig hin?“. Vor dem Hintergrund, dass Unternehmen aus unterschiedlichen Gründen nicht immer das grundsätzlich Mögliche einführen können, ist die Beantwortung dieser Frage nicht trivial. Ist sich ein Unternehmen über seine I4.0-Zielposition vermeintlich im Klaren, führen äußere Einflüsse häufig dazu, dass die Zielerreichung erschwert wird, was oftmals eine Anpassung der Zielposition zur Folge hat. Es gilt also, diese Umstände bereits in der Planung zu berücksichtigen. Der vorliegende Beitrag zeigt auf, wie Umfeldentwicklungen bei der Ermittlung einer Erfolg versprechenden I4.0-Zielposition von Unternehmen einbezogen werden können.
AU - Pierenkemper, Christoph
AU - Reinhold, Jannik
AU - Dumitrescu, Roman
AU - Gausemeier, Jürgen
ID - 27102
JF - Industrie 4.0 Management (5)
TI - Erfolg versprechende Industrie 4.0-Zielposition - Ermittlung unter Berücksichtigung zukünftiger Umfeldentwicklungen
ER -
TY - CONF
AB - One of the notable drivers of the fourth industrial revolution is the collection of vast amounts of data along the entire lifecycle of a product. The analysis of product lifecycle data in conjunction with product hypotheses leads to promising potentials in strategic product planning. In this thesis paper, we postulate the need for data-driven product generation and retrofit planning as an interdisciplinary field of research. We define and analyze the key concepts and derive requirements in a structured way. Based on an exhaustive research of existing approaches, we structure open research questions and propose a roadmap in order to shape future research efforts.
AU - Massmann, Melina
AU - Meyer, Maurice
AU - Dumitrescu, Roman
AU - von Enzberg, Sebastian
AU - Frank, Maximilian
AU - Koldewey, Christian
AU - Kühn, Arno
AU - Reinhold, Jannik
ID - 27103
T2 - Proceedings of the CIRP DESIGN
TI - Significance and Challenges of Data-driven Product Generation and Retrofit Planning
ER -
TY - CONF
AB - Today's manufacturing industry is confronted with fundamental changes in value creation. The tension between the two megatrends of digitization and servitization leads to new hybrid market offerings, so-called smart services. Corresponding value networks fundamentally differ from traditional ones. Developing smart services requires new competences in young disciplines, while their provision requires new internal and external organizational structures or processes. To strengthen their competitive position, manufacturing companies need to adapt their value networks. However, the highly complex transformation of value crea-tion especially challenges small and medium-sized companies due to limited competences and resources. They must consider opening their boundaries and collaborating with partners. In this paper, we introduce a basic framework for planning smart services and present a methodology for competence-based plan-ning of value networks for smart services in three phases: Smart service analysis, competence analysis and value creation planning. The methodology is explained by an example from tooling machine industry.
AU - Reinhold, Jannik
AU - Frank, Maximilian
AU - Koldewey, Christian
AU - Dumitrescu, Roman
AU - Gausemeier, Jürgen
ID - 27104
T2 - Proceedings of the ISPIM Connects
TI - Competence-based Planning of Value Networks for Smart Services
ER -
TY - CONF
AU - Wortmann, Fabio
AU - Joppen, Robert
AU - Drewel, Marvin
AU - Kühn, Arno
AU - Dumitrescu, Roman
ED - Jain, K.
ED - Sangle, S.
ED - Gupta, R.
ED - Persis, J.
ED - Mukundan, R.
ID - 27105
T2 - IAMOT 2019 – Proceedings of the 28th International Association for Management of Technology Conference
TI - Developing and Evaluating Concepts for a Digital Platform
ER -
TY - CONF
AB - Smart Services are digital, IT-based services that are using data of a corresponding physical product, e.g. predictive maintenance or automated reordering of consumables for a production machine. This contribution shows a study about 265 services from the German manufacturing industry. We derive hypothesis for identifying Smart Services as well as eleven variables and their 47 characteristics to systematically describe them. A clustering of the found Smart Services resulted in four distinguishable groups. Furthermore, we show statistics of how companies combine the characteristics of their market offerings. Our findings reflect where the theoretical possibilities were fully met by the implementations of the German manufacturing companies and where the industry is still lagging behind. Finally, we derived six bundles of highly consistent combinations of the characteristics. These bundles can be starting points for developing Smart Services for one’s specific use case.
AU - Frank, Maximilian
AU - Rabe, Martin
AU - Koldewey, Christian
AU - Dumitrescu, Roman
AU - Gausemeier, Jürgen
AU - Hennig-Cardinal von Widdern, Nils
AU - Reinhold, Jannik
ID - 27107
T2 - Proceedings of the ISPIM connects
TI - Classification-based Planning of Smart Service Portfolios
ER -
TY - CHAP
AU - Dangelmaier, Wilhelm
AU - Gausemeier, Jürgen
ID - 27108
T2 - Intelligente Technische Systeme – Lösungen aus dem Spitzencluster it’s OWL
TI - Intelligente Arbeitsvorbereitung auf Basis virtueller Werkzeugmaschinen
ER -
TY - BOOK
AU - Gausemeier, Jürgen
AU - Dumitrescu, Roman
AU - Echterfeld, Julian
AU - Pfänder, Tomas
AU - Steffen, Daniel
AU - Thielemann, Frank
ID - 27109
TI - Innovationen für die Märkte von morgen - Strategische Planung von Produkten, Dienstleistungen und Geschäftsmodellen
ER -
TY - GEN
AU - Gausemeier, Jürgen
AU - Guggemos, Michael
AU - Kreimeyer, Andreas
AU - Lange, Thomas
AU - Behrens, Jan Henning
AU - Seitz, Ralph
AU - Ortloff, Luise
AU - Frey, Anna
AU - Dachsberger, Stephanie
AU - Drewel, Marvin
AU - Frank, Maximilian
ID - 27110
TI - Nationales Kompetenz-Monitoring - Bericht: Energiespeichersysteme (Fokus Lithium-Ionen-Speicher)
ER -
TY - CHAP
AU - Schlegel-Matthies, Kirsten
ED - Bala, Christian
ED - Buddensiek, Marit
ED - Maier, Petra
ED - Schuldzinski, Wolfgang
ID - 27379
SN - 978-3-86336-924-8
T2 - Verbraucherbildung: Ein weiter Weg zum mündigen Verbraucher
TI - Verbraucherbildung als Bildung für Lebensführung
ER -
TY - JOUR
AB - Der Beitrag geht der Frage nach, wie haushaltsbezogene Bildung als Ernährungs- und Verbraucherbildung umgesetzt werden kann, damit Jugendliche selbstbestimmt und verantwortlich ihre individuellen Vorstellungen von einem „guten“ und „gelingenden“ Leben umsetzen können. Die Auseinandersetzung mit dem Zusammenwirken von gesellschaftlicher Lebensweise, privater Lebensführung und individuellen Lebensstilen erweist sich dabei als bedeutsam.
AU - Schlegel-Matthies, Kirsten
ID - 27380
JF - Haushalt in Bildung & Forschung
SN - 2196-1662
TI - Haushaltsbezogene Bildung – quo vadis? Daseinsvorsorge und Lebensführung im Wandel
ER -
TY - THES
AU - Pohl, Max
ID - 27648
TI - High-Speed-Extrusion amorpher Polymere am Beispiel von Polycarbonat (PC) und Polymethylmethacrylat (PMMA)
ER -
TY - THES
AU - Meilwes , Peter
ID - 27649
TI - Simulation und Modellierung des Druckverlustes industrieller Polymerschmelzefilter in Abhängigkeit verschiedener Prozessbedingungen sowie deren verschmutzung
ER -